diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 44e0fe5..3042540 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -7,34 +7,34 @@
 
 jobs:
   ci-config:
-      runs-on: ubuntu-latest
-      outputs:
-        enabled: ${{ steps.check-ref.outputs.enabled }}
-      steps:
-        - name: try to clone ci-config branch
-          continue-on-error: true
-          run: |
-            git -c protocol.version=2 clone \
-              --no-tags \
-              --single-branch \
-              -b ci-config \
-              --depth 1 \
-              --no-checkout \
-              --filter=blob:none \
-              https://github.com/${{ github.repository }} \
-              config-repo &&
-              cd config-repo &&
-              git checkout HEAD -- ci/config
-        - id: check-ref
-          name: check whether CI is enabled for ref
-          run: |
-            enabled=yes
-            if test -x config-repo/ci/config/allow-ref &&
-               ! config-repo/ci/config/allow-ref '${{ github.ref }}'
-            then
-              enabled=no
-            fi
-            echo "::set-output name=enabled::$enabled"
+    runs-on: ubuntu-latest
+    outputs:
+      enabled: ${{ steps.check-ref.outputs.enabled }}
+    steps:
+      - name: try to clone ci-config branch
+        continue-on-error: true
+        run: |
+          git -c protocol.version=2 clone \
+            --no-tags \
+            --single-branch \
+            -b ci-config \
+            --depth 1 \
+            --no-checkout \
+            --filter=blob:none \
+            https://github.com/${{ github.repository }} \
+            config-repo &&
+            cd config-repo &&
+            git checkout HEAD -- ci/config
+      - id: check-ref
+        name: check whether CI is enabled for ref
+        run: |
+          enabled=yes
+          if test -x config-repo/ci/config/allow-ref &&
+             ! config-repo/ci/config/allow-ref '${{ github.ref }}'
+          then
+            enabled=no
+          fi
+          echo "::set-output name=enabled::$enabled"
 
   windows-build:
     needs: ci-config
diff --git a/.gitignore b/.gitignore
index ee509a2..9673e79 100644
--- a/.gitignore
+++ b/.gitignore
@@ -134,7 +134,6 @@
 /git-remote-fd
 /git-remote-ext
 /git-remote-testpy
-/git-remote-testsvn
 /git-repack
 /git-replace
 /git-request-pull
diff --git a/Documentation/RelNotes/2.29.0.txt b/Documentation/RelNotes/2.29.0.txt
index 334e63a..a020dad 100644
--- a/Documentation/RelNotes/2.29.0.txt
+++ b/Documentation/RelNotes/2.29.0.txt
@@ -51,6 +51,10 @@
    deprecated and/or dangerous options from its output; it learned to
    optionally include all of them.
 
+ * The output from the "diff" family of the commands had abbreviated
+   object names of blobs involved in the patch, but its length was not
+   affected by the --abbrev option.  Now it is.
+
 
 Performance, Internal Implementation, Development Support etc.
 
@@ -113,6 +117,10 @@
    the ref backend in use, as its format is much richer than the
    normal refs, and written directly by "git fetch" as a plain file..
 
+ * A handful of places in in-tree code still relied on being able to
+   execute the git subcommands, especially built-ins, in "git-foo"
+   form, which have been corrected.
+
 
 Fixes since v2.28
 -----------------
@@ -224,6 +232,37 @@
    marker like whitespaces.
    (merge 82a62015a7 rs/patch-id-with-incomplete-line later to maint).
 
+ * Updates into a lazy/partial clone with a submodule did not work
+   well with transfer.fsckobjects set.
+
+ * The parser for "git for-each-ref --format=..." was too loose when
+   parsing the "%(trailers...)" atom, and forgot that "trailers" and
+   "trailers:<modifiers>" are the only two allowed forms, which has
+   been corrected.
+   (merge 2c22e102f8 hv/ref-filter-trailers-atom-parsing-fix later to maint).
+
+ * Long ago, we decided to use 3 threads by default when running the
+   index-pack task in parallel, which has been adjusted a bit upwards.
+   (merge fbff95b67f jk/index-pack-w-more-threads later to maint).
+
+ * "git restore/checkout --no-overlay" with wildcarded pathspec
+   mistakenly removed matching paths in subdirectories, which has been
+   corrected.
+   (merge bfda204ade rs/checkout-no-overlay-pathspec-fix later to maint).
+
+ * The description of --cached/--index options in "git apply --help"
+   has been updated.
+   (merge d064702be3 rp/apply-cached-doc later to maint).
+
+ * Feeding "$ZERO_OID" to "git log --ignore-missing --stdin", and
+   running "git log --ignore-missing $ZERO_OID" fell back to start
+   digging from HEAD; it has been corrected to become a no-op, like
+   "git log --tags=no-tag-matches-this-pattern" does.
+   (merge 04a0e98515 jk/rev-input-given-fix later to maint).
+
+ * Various callers of run_command API has been modernized.
+   (merge afbdba391e jc/run-command-use-embedded-args later to maint).
+
  * Other code cleanup, docfix, build fix, etc.
    (merge 84544f2ea3 sk/typofixes later to maint).
    (merge b17f411ab5 ar/help-guides-doc later to maint).
diff --git a/Documentation/config/fetch.txt b/Documentation/config/fetch.txt
index b203940..6af6f5e 100644
--- a/Documentation/config/fetch.txt
+++ b/Documentation/config/fetch.txt
@@ -60,7 +60,10 @@
 	sent when negotiating the contents of the packfile to be sent by the
 	server. Set to "skipping" to use an algorithm that skips commits in an
 	effort to converge faster, but may result in a larger-than-necessary
-	packfile; The default is "default" which instructs Git to use the default algorithm
+	packfile; or set to "noop" to not send any information at all, which
+	will almost certainly result in a larger-than-necessary packfile, but
+	will skip the negotiation step.
+	The default is "default" which instructs Git to use the default algorithm
 	that never skips commits (unless the server has acknowledged it or one
 	of its descendants). If `feature.experimental` is enabled, then this
 	setting defaults to "skipping".
diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index b7af973..573fb9b 100644
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -446,10 +446,11 @@
 --abbrev[=<n>]::
 	Instead of showing the full 40-byte hexadecimal object
 	name in diff-raw format output and diff-tree header
-	lines, show only a partial prefix.  This is
-	independent of the `--full-index` option above, which controls
-	the diff-patch output format.  Non default number of
-	digits can be specified with `--abbrev=<n>`.
+	lines, show only a partial prefix.
+	In diff-patch output format, `--full-index` takes higher
+	precedence, i.e. if `--full-index` is specified, full blob
+	names will be shown regardless of `--abbrev`.
+	Non default number of digits can be specified with `--abbrev=<n>`.
 
 -B[<n>][/<m>]::
 --break-rewrites[=[<n>][/<m>]]::
diff --git a/Documentation/git-apply.txt b/Documentation/git-apply.txt
index b9aa390..91d9a86 100644
--- a/Documentation/git-apply.txt
+++ b/Documentation/git-apply.txt
@@ -61,18 +61,18 @@
 	file and detects errors.  Turns off "apply".
 
 --index::
-	When `--check` is in effect, or when applying the patch
-	(which is the default when none of the options that
-	disables it is in effect), make sure the patch is
-	applicable to what the current index file records.  If
-	the file to be patched in the working tree is not
-	up to date, it is flagged as an error.  This flag also
-	causes the index file to be updated.
+	Apply the patch to both the index and the working tree (or
+	merely check that it would apply cleanly to both if `--check` is
+	in effect). Note that `--index` expects index entries and
+	working tree copies for relevant paths to be identical (their
+	contents and metadata such as file mode must match), and will
+	raise an error if they are not, even if the patch would apply
+	cleanly to both the index and the working tree in isolation.
 
 --cached::
-	Apply a patch without touching the working tree. Instead take the
-	cached data, apply the patch, and store the result in the index
-	without using the working tree. This implies `--index`.
+	Apply the patch to just the index, without touching the working
+	tree. If `--check` is in effect, merely check that it would
+	apply cleanly to the index entry.
 
 --intent-to-add::
 	When applying the patch only to the working tree, mark new
diff --git a/Documentation/git-fetch.txt b/Documentation/git-fetch.txt
index 45b6d8e..9067c20 100644
--- a/Documentation/git-fetch.txt
+++ b/Documentation/git-fetch.txt
@@ -48,6 +48,10 @@
 
 include::pull-fetch-param.txt[]
 
+--stdin::
+	Read refspecs, one per line, from stdin in addition to those provided
+	as arguments. The "tag <name>" format is not supported.
+
 include::urls-remotes.txt[]
 
 
diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt
index 374d248..e8df8d5 100644
--- a/Documentation/git-rebase.txt
+++ b/Documentation/git-rebase.txt
@@ -459,17 +459,38 @@
 See also INCOMPATIBLE OPTIONS below.
 
 --ignore-whitespace::
+	Ignore whitespace differences when trying to reconcile
+differences. Currently, each backend implements an approximation of
+this behavior:
++
+apply backend: When applying a patch, ignore changes in whitespace in
+context lines. Unfortunately, this means that if the "old" lines being
+replaced by the patch differ only in whitespace from the existing
+file, you will get a merge conflict instead of a successful patch
+application.
++
+merge backend: Treat lines with only whitespace changes as unchanged
+when merging. Unfortunately, this means that any patch hunks that were
+intended to modify whitespace and nothing else will be dropped, even
+if the other side had no changes that conflicted.
+
 --whitespace=<option>::
-	These flags are passed to the 'git apply' program
+	This flag is passed to the 'git apply' program
 	(see linkgit:git-apply[1]) that applies the patch.
 	Implies --apply.
 +
 See also INCOMPATIBLE OPTIONS below.
 
 --committer-date-is-author-date::
+	Instead of using the current time as the committer date, use
+	the author date of the commit being rebased as the committer
+	date. This option implies `--force-rebase`.
+
 --ignore-date::
-	These flags are passed to 'git am' to easily change the dates
-	of the rebased commits (see linkgit:git-am[1]).
+--reset-author-date::
+	Instead of using the author date of the original commit, use
+	the current time as the	author date of the rebased commit.  This
+	option implies `--force-rebase`.
 +
 See also INCOMPATIBLE OPTIONS below.
 
@@ -607,9 +628,6 @@
 The following options:
 
  * --apply
- * --committer-date-is-author-date
- * --ignore-date
- * --ignore-whitespace
  * --whitespace
  * -C
 
@@ -636,6 +654,9 @@
  * --preserve-merges and --signoff
  * --preserve-merges and --rebase-merges
  * --preserve-merges and --empty=
+ * --preserve-merges and --ignore-whitespace
+ * --preserve-merges and --committer-date-is-author-date
+ * --preserve-merges and --ignore-date
  * --keep-base and --onto
  * --keep-base and --root
  * --fork-point and --root
diff --git a/Documentation/pretty-options.txt b/Documentation/pretty-options.txt
index 7a6da6d..17c5aac 100644
--- a/Documentation/pretty-options.txt
+++ b/Documentation/pretty-options.txt
@@ -25,8 +25,8 @@
 
 --no-abbrev-commit::
 	Show the full 40-byte hexadecimal commit object name. This negates
-	`--abbrev-commit` and those options which imply it such as
-	"--oneline". It also overrides the `log.abbrevCommit` variable.
+	`--abbrev-commit`, either explicit or implied by other options such
+	as "--oneline". It also overrides the `log.abbrevCommit` variable.
 
 --oneline::
 	This is a shorthand for "--pretty=oneline --abbrev-commit"
diff --git a/Documentation/technical/partial-clone.txt b/Documentation/technical/partial-clone.txt
index b9e17e7..0780d30 100644
--- a/Documentation/technical/partial-clone.txt
+++ b/Documentation/technical/partial-clone.txt
@@ -171,20 +171,13 @@
 Fetching Missing Objects
 ------------------------
 
-- Fetching of objects is done using the existing transport mechanism using
-  transport_fetch_refs(), setting a new transport option
-  TRANS_OPT_NO_DEPENDENTS to indicate that only the objects themselves are
-  desired, not any object that they refer to.
-+
-Because some transports invoke fetch_pack() in the same process, fetch_pack()
-has been updated to not use any object flags when the corresponding argument
-(no_dependents) is set.
+- Fetching of objects is done by invoking a "git fetch" subprocess.
 
 - The local repository sends a request with the hashes of all requested
-  objects as "want" lines, and does not perform any packfile negotiation.
+  objects, and does not perform any packfile negotiation.
   It then receives a packfile.
 
-- Because we are reusing the existing fetch-pack mechanism, fetching
+- Because we are reusing the existing fetch mechanism, fetching
   currently fetches all objects referred to by the requested objects, even
   though they are not necessary.
 
diff --git a/Makefile b/Makefile
index 65f8cfb..86e5411 100644
--- a/Makefile
+++ b/Makefile
@@ -569,7 +569,6 @@
 COMPAT_CFLAGS =
 COMPAT_OBJS =
 XDIFF_OBJS =
-VCSSVN_OBJS =
 GENERATED_H =
 EXTRA_CPPFLAGS =
 FUZZ_OBJS =
@@ -671,13 +670,9 @@
 # ... and all the rest that could be moved out of bindir to gitexecdir
 PROGRAMS += $(EXTRA_PROGRAMS)
 
-PROGRAM_OBJS += bugreport.o
-PROGRAM_OBJS += credential-store.o
 PROGRAM_OBJS += daemon.o
-PROGRAM_OBJS += fast-import.o
 PROGRAM_OBJS += http-backend.o
 PROGRAM_OBJS += imap-send.o
-PROGRAM_OBJS += remote-testsvn.o
 PROGRAM_OBJS += sh-i18n--envsubst.o
 PROGRAM_OBJS += shell.o
 
@@ -749,8 +744,6 @@
 # Do not add more tests here unless they have extra dependencies. Add
 # them in TEST_BUILTINS_OBJS above.
 TEST_PROGRAMS_NEED_X += test-fake-ssh
-TEST_PROGRAMS_NEED_X += test-line-buffer
-TEST_PROGRAMS_NEED_X += test-svn-fe
 TEST_PROGRAMS_NEED_X += test-tool
 
 TEST_PROGRAMS = $(patsubst %,t/helper/%$X,$(TEST_PROGRAMS_NEED_X))
@@ -806,7 +799,6 @@
 
 LIB_FILE = libgit.a
 XDIFF_LIB = xdiff/lib.a
-VCSSVN_LIB = vcs-svn/lib.a
 
 GENERATED_H += config-list.h
 GENERATED_H += command-list.h
@@ -916,6 +908,7 @@
 LIB_OBJS += midx.o
 LIB_OBJS += name-hash.o
 LIB_OBJS += negotiator/default.o
+LIB_OBJS += negotiator/noop.o
 LIB_OBJS += negotiator/skipping.o
 LIB_OBJS += notes-cache.o
 LIB_OBJS += notes-merge.o
@@ -1042,6 +1035,7 @@
 BUILTIN_OBJS += builtin/bisect--helper.o
 BUILTIN_OBJS += builtin/blame.o
 BUILTIN_OBJS += builtin/branch.o
+BUILTIN_OBJS += builtin/bugreport.o
 BUILTIN_OBJS += builtin/bundle.o
 BUILTIN_OBJS += builtin/cat-file.o
 BUILTIN_OBJS += builtin/check-attr.o
@@ -1052,6 +1046,9 @@
 BUILTIN_OBJS += builtin/checkout.o
 BUILTIN_OBJS += builtin/clean.o
 BUILTIN_OBJS += builtin/clone.o
+BUILTIN_OBJS += builtin/credential-cache.o
+BUILTIN_OBJS += builtin/credential-cache--daemon.o
+BUILTIN_OBJS += builtin/credential-store.o
 BUILTIN_OBJS += builtin/column.o
 BUILTIN_OBJS += builtin/commit-graph.o
 BUILTIN_OBJS += builtin/commit-tree.o
@@ -1067,6 +1064,7 @@
 BUILTIN_OBJS += builtin/difftool.o
 BUILTIN_OBJS += builtin/env--helper.o
 BUILTIN_OBJS += builtin/fast-export.o
+BUILTIN_OBJS += builtin/fast-import.o
 BUILTIN_OBJS += builtin/fetch-pack.o
 BUILTIN_OBJS += builtin/fetch.o
 BUILTIN_OBJS += builtin/fmt-merge-msg.o
@@ -1634,11 +1632,8 @@
 endif
 ifdef NO_UNIX_SOCKETS
 	BASIC_CFLAGS += -DNO_UNIX_SOCKETS
-	EXCLUDED_PROGRAMS += git-credential-cache git-credential-cache--daemon
 else
 	LIB_OBJS += unix-socket.o
-	PROGRAM_OBJS += credential-cache.o
-	PROGRAM_OBJS += credential-cache--daemon.o
 endif
 
 ifdef NO_ICONV
@@ -2346,16 +2341,9 @@
 XDIFF_OBJS += xdiff/xprepare.o
 XDIFF_OBJS += xdiff/xutils.o
 
-VCSSVN_OBJS += vcs-svn/fast_export.o
-VCSSVN_OBJS += vcs-svn/line_buffer.o
-VCSSVN_OBJS += vcs-svn/sliding_window.o
-VCSSVN_OBJS += vcs-svn/svndiff.o
-VCSSVN_OBJS += vcs-svn/svndump.o
-
 TEST_OBJS := $(patsubst %$X,%.o,$(TEST_PROGRAMS)) $(patsubst %,t/helper/%,$(TEST_BUILTINS_OBJS))
 OBJECTS := $(LIB_OBJS) $(BUILTIN_OBJS) $(PROGRAM_OBJS) $(TEST_OBJS) \
 	$(XDIFF_OBJS) \
-	$(VCSSVN_OBJS) \
 	$(FUZZ_OBJS) \
 	common-main.o \
 	git.o
@@ -2459,10 +2447,6 @@
 git-%$X: %.o GIT-LDFLAGS $(GITLIBS)
 	$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) $(LIBS)
 
-git-bugreport$X: bugreport.o GIT-LDFLAGS $(GITLIBS)
-	$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
-		$(LIBS)
-
 git-imap-send$X: imap-send.o $(IMAP_SEND_BUILDDEPS) GIT-LDFLAGS $(GITLIBS)
 	$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
 		$(IMAP_SEND_LDFLAGS) $(LIBS)
@@ -2474,10 +2458,6 @@
 	$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
 		$(CURL_LIBCURL) $(EXPAT_LIBEXPAT) $(LIBS)
 
-git-remote-testsvn$X: remote-testsvn.o GIT-LDFLAGS $(GITLIBS) $(VCSSVN_LIB)
-	$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) $(LIBS) \
-	$(VCSSVN_LIB)
-
 $(REMOTE_CURL_ALIASES): $(REMOTE_CURL_PRIMARY)
 	$(QUIET_LNCP)$(RM) $@ && \
 	ln $< $@ 2>/dev/null || \
@@ -2494,9 +2474,6 @@
 $(XDIFF_LIB): $(XDIFF_OBJS)
 	$(QUIET_AR)$(RM) $@ && $(AR) $(ARFLAGS) $@ $^
 
-$(VCSSVN_LIB): $(VCSSVN_OBJS)
-	$(QUIET_AR)$(RM) $@ && $(AR) $(ARFLAGS) $@ $^
-
 export DEFAULT_EDITOR DEFAULT_PAGER
 
 Documentation/GIT-EXCLUDED-PROGRAMS: FORCE
@@ -2771,10 +2748,6 @@
 
 .PHONY: test perf
 
-t/helper/test-line-buffer$X: $(VCSSVN_LIB)
-
-t/helper/test-svn-fe$X: $(VCSSVN_LIB)
-
 .PRECIOUS: $(TEST_OBJS)
 
 t/helper/test-tool$X: $(patsubst %,t/helper/%,$(TEST_BUILTINS_OBJS))
@@ -2901,18 +2874,13 @@
 	# because it is just a copy/hardlink of git.exe, rather than a unique binary.
 	$(INSTALL) git.pdb '$(DESTDIR_SQ)$(bindir_SQ)'
 	$(INSTALL) git-shell.pdb '$(DESTDIR_SQ)$(bindir_SQ)'
-	$(INSTALL) git-upload-pack.pdb '$(DESTDIR_SQ)$(bindir_SQ)'
-	$(INSTALL) git-credential-store.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
 	$(INSTALL) git-daemon.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
-	$(INSTALL) git-fast-import.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
 	$(INSTALL) git-http-backend.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
 	$(INSTALL) git-http-fetch.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
 	$(INSTALL) git-http-push.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
 	$(INSTALL) git-imap-send.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
 	$(INSTALL) git-remote-http.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
-	$(INSTALL) git-remote-testsvn.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
 	$(INSTALL) git-sh-i18n--envsubst.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
-	$(INSTALL) git-show-index.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
 ifndef DEBUG
 	$(INSTALL) $(vcpkg_rel_bin)/*.dll '$(DESTDIR_SQ)$(bindir_SQ)'
 	$(INSTALL) $(vcpkg_rel_bin)/*.pdb '$(DESTDIR_SQ)$(bindir_SQ)'
@@ -3112,7 +3080,7 @@
 clean: profile-clean coverage-clean cocciclean
 	$(RM) *.res
 	$(RM) $(OBJECTS)
-	$(RM) $(LIB_FILE) $(XDIFF_LIB) $(VCSSVN_LIB)
+	$(RM) $(LIB_FILE) $(XDIFF_LIB)
 	$(RM) $(ALL_PROGRAMS) $(SCRIPT_LIB) $(BUILT_INS) git$X
 	$(RM) $(TEST_PROGRAMS)
 	$(RM) $(FUZZ_PROGRAMS)
diff --git a/add-patch.c b/add-patch.c
index f67b304..457b8c5 100644
--- a/add-patch.c
+++ b/add-patch.c
@@ -457,11 +457,9 @@
 			eol = pend;
 
 		if (starts_with(p, "diff ")) {
-			s->file_diff_nr++;
-			ALLOC_GROW(s->file_diff, s->file_diff_nr,
+			ALLOC_GROW_BY(s->file_diff, s->file_diff_nr, 1,
 				   file_diff_alloc);
 			file_diff = s->file_diff + s->file_diff_nr - 1;
-			memset(file_diff, 0, sizeof(*file_diff));
 			hunk = &file_diff->head;
 			hunk->start = p - plain->buf;
 			if (colored_p)
@@ -483,11 +481,9 @@
 				 */
 				hunk->splittable_into++;
 
-			file_diff->hunk_nr++;
-			ALLOC_GROW(file_diff->hunk, file_diff->hunk_nr,
+			ALLOC_GROW_BY(file_diff->hunk, file_diff->hunk_nr, 1,
 				   file_diff->hunk_alloc);
 			hunk = file_diff->hunk + file_diff->hunk_nr - 1;
-			memset(hunk, 0, sizeof(*hunk));
 
 			hunk->start = p - plain->buf;
 			if (colored)
@@ -511,7 +507,7 @@
 			if (file_diff->mode_change)
 				BUG("double mode change?\n\n%.*s",
 				    (int)(eol - plain->buf), plain->buf);
-			if (file_diff->hunk_nr++)
+			if (file_diff->hunk_nr)
 				BUG("mode change in the middle?\n\n%.*s",
 				    (int)(eol - plain->buf), plain->buf);
 
@@ -520,9 +516,8 @@
 			 * is _part of_ the header "hunk".
 			 */
 			file_diff->mode_change = 1;
-			ALLOC_GROW(file_diff->hunk, file_diff->hunk_nr,
+			ALLOC_GROW_BY(file_diff->hunk, file_diff->hunk_nr, 1,
 				   file_diff->hunk_alloc);
-			memset(file_diff->hunk, 0, sizeof(struct hunk));
 			file_diff->hunk->start = p - plain->buf;
 			if (colored_p)
 				file_diff->hunk->colored_start =
@@ -1357,6 +1352,15 @@
 	struct child_process cp = CHILD_PROCESS_INIT;
 	int colored = !!s->colored.len, quit = 0;
 	enum prompt_mode_type prompt_mode_type;
+	enum {
+		ALLOW_GOTO_PREVIOUS_HUNK = 1 << 0,
+		ALLOW_GOTO_PREVIOUS_UNDECIDED_HUNK = 1 << 1,
+		ALLOW_GOTO_NEXT_HUNK = 1 << 2,
+		ALLOW_GOTO_NEXT_UNDECIDED_HUNK = 1 << 3,
+		ALLOW_SEARCH_AND_GOTO = 1 << 4,
+		ALLOW_SPLIT = 1 << 5,
+		ALLOW_EDIT = 1 << 6
+	} permitted = 0;
 
 	if (!file_diff->hunk_nr)
 		return 0;
@@ -1393,22 +1397,35 @@
 		fputs(s->buf.buf, stdout);
 
 		strbuf_reset(&s->buf);
-		if (undecided_previous >= 0)
+		if (undecided_previous >= 0) {
+			permitted |= ALLOW_GOTO_PREVIOUS_UNDECIDED_HUNK;
 			strbuf_addstr(&s->buf, ",k");
-		if (hunk_index)
+		}
+		if (hunk_index) {
+			permitted |= ALLOW_GOTO_PREVIOUS_HUNK;
 			strbuf_addstr(&s->buf, ",K");
-		if (undecided_next >= 0)
+		}
+		if (undecided_next >= 0) {
+			permitted |= ALLOW_GOTO_NEXT_UNDECIDED_HUNK;
 			strbuf_addstr(&s->buf, ",j");
-		if (hunk_index + 1 < file_diff->hunk_nr)
+		}
+		if (hunk_index + 1 < file_diff->hunk_nr) {
+			permitted |= ALLOW_GOTO_NEXT_HUNK;
 			strbuf_addstr(&s->buf, ",J");
-		if (file_diff->hunk_nr > 1)
+		}
+		if (file_diff->hunk_nr > 1) {
+			permitted |= ALLOW_SEARCH_AND_GOTO;
 			strbuf_addstr(&s->buf, ",g,/");
-		if (hunk->splittable_into > 1)
+		}
+		if (hunk->splittable_into > 1) {
+			permitted |= ALLOW_SPLIT;
 			strbuf_addstr(&s->buf, ",s");
+		}
 		if (hunk_index + 1 > file_diff->mode_change &&
-		    !file_diff->deleted)
+		    !file_diff->deleted) {
+			permitted |= ALLOW_EDIT;
 			strbuf_addstr(&s->buf, ",e");
-
+		}
 		if (file_diff->deleted)
 			prompt_mode_type = PROMPT_DELETION;
 		else if (file_diff->added)
@@ -1457,22 +1474,22 @@
 				break;
 			}
 		} else if (s->answer.buf[0] == 'K') {
-			if (hunk_index)
+			if (permitted & ALLOW_GOTO_PREVIOUS_HUNK)
 				hunk_index--;
 			else
 				err(s, _("No previous hunk"));
 		} else if (s->answer.buf[0] == 'J') {
-			if (hunk_index + 1 < file_diff->hunk_nr)
+			if (permitted & ALLOW_GOTO_NEXT_HUNK)
 				hunk_index++;
 			else
 				err(s, _("No next hunk"));
 		} else if (s->answer.buf[0] == 'k') {
-			if (undecided_previous >= 0)
+			if (permitted & ALLOW_GOTO_PREVIOUS_UNDECIDED_HUNK)
 				hunk_index = undecided_previous;
 			else
 				err(s, _("No previous hunk"));
 		} else if (s->answer.buf[0] == 'j') {
-			if (undecided_next >= 0)
+			if (permitted & ALLOW_GOTO_NEXT_UNDECIDED_HUNK)
 				hunk_index = undecided_next;
 			else
 				err(s, _("No next hunk"));
@@ -1480,7 +1497,7 @@
 			char *pend;
 			unsigned long response;
 
-			if (file_diff->hunk_nr < 2) {
+			if (!(permitted & ALLOW_SEARCH_AND_GOTO)) {
 				err(s, _("No other hunks to goto"));
 				continue;
 			}
@@ -1517,7 +1534,7 @@
 			regex_t regex;
 			int ret;
 
-			if (file_diff->hunk_nr < 2) {
+			if (!(permitted & ALLOW_SEARCH_AND_GOTO)) {
 				err(s, _("No other hunks to search"));
 				continue;
 			}
@@ -1562,7 +1579,7 @@
 			hunk_index = i;
 		} else if (s->answer.buf[0] == 's') {
 			size_t splittable_into = hunk->splittable_into;
-			if (splittable_into < 2)
+			if (!(permitted & ALLOW_SPLIT))
 				err(s, _("Sorry, cannot split this hunk"));
 			else if (!split_hunk(s, file_diff,
 					     hunk - file_diff->hunk))
@@ -1570,7 +1587,7 @@
 						 _("Split into %d hunks."),
 						 (int)splittable_into);
 		} else if (s->answer.buf[0] == 'e') {
-			if (hunk_index + 1 == file_diff->mode_change)
+			if (!(permitted & ALLOW_EDIT))
 				err(s, _("Sorry, cannot edit this hunk"));
 			else if (edit_hunk_loop(s, file_diff, hunk) >= 0) {
 				hunk->use = USE_HUNK;
diff --git a/builtin.h b/builtin.h
index a5ae15b..ba954e1 100644
--- a/builtin.h
+++ b/builtin.h
@@ -119,6 +119,7 @@
 int cmd_bisect__helper(int argc, const char **argv, const char *prefix);
 int cmd_blame(int argc, const char **argv, const char *prefix);
 int cmd_branch(int argc, const char **argv, const char *prefix);
+int cmd_bugreport(int argc, const char **argv, const char *prefix);
 int cmd_bundle(int argc, const char **argv, const char *prefix);
 int cmd_cat_file(int argc, const char **argv, const char *prefix);
 int cmd_checkout(int argc, const char **argv, const char *prefix);
@@ -138,6 +139,9 @@
 int cmd_config(int argc, const char **argv, const char *prefix);
 int cmd_count_objects(int argc, const char **argv, const char *prefix);
 int cmd_credential(int argc, const char **argv, const char *prefix);
+int cmd_credential_cache(int argc, const char **argv, const char *prefix);
+int cmd_credential_cache_daemon(int argc, const char **argv, const char *prefix);
+int cmd_credential_store(int argc, const char **argv, const char *prefix);
 int cmd_describe(int argc, const char **argv, const char *prefix);
 int cmd_diff_files(int argc, const char **argv, const char *prefix);
 int cmd_diff_index(int argc, const char **argv, const char *prefix);
@@ -146,6 +150,7 @@
 int cmd_difftool(int argc, const char **argv, const char *prefix);
 int cmd_env__helper(int argc, const char **argv, const char *prefix);
 int cmd_fast_export(int argc, const char **argv, const char *prefix);
+int cmd_fast_import(int argc, const char **argv, const char *prefix);
 int cmd_fetch(int argc, const char **argv, const char *prefix);
 int cmd_fetch_pack(int argc, const char **argv, const char *prefix);
 int cmd_fmt_merge_msg(int argc, const char **argv, const char *prefix);
diff --git a/builtin/am.c b/builtin/am.c
index dd4e6c2..b5c63dd 100644
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -98,6 +98,8 @@
 	char *author_name;
 	char *author_email;
 	char *author_date;
+	char *committer_name;
+	char *committer_email;
 	char *msg;
 	size_t msg_len;
 
@@ -130,6 +132,8 @@
  */
 static void am_state_init(struct am_state *state)
 {
+	const char *committer;
+	struct ident_split id;
 	int gpgsign;
 
 	memset(state, 0, sizeof(*state));
@@ -150,6 +154,14 @@
 
 	if (!git_config_get_bool("commit.gpgsign", &gpgsign))
 		state->sign_commit = gpgsign ? "" : NULL;
+
+	committer = git_committer_info(IDENT_STRICT);
+	if (split_ident_line(&id, committer, strlen(committer)) < 0)
+		die(_("invalid committer: %s"), committer);
+	state->committer_name =
+		xmemdupz(id.name_begin, id.name_end - id.name_begin);
+	state->committer_email =
+		xmemdupz(id.mail_begin, id.mail_end - id.mail_end);
 }
 
 /**
@@ -161,6 +173,8 @@
 	free(state->author_name);
 	free(state->author_email);
 	free(state->author_date);
+	free(state->committer_name);
+	free(state->committer_email);
 	free(state->msg);
 	strvec_clear(&state->git_apply_opts);
 }
@@ -1556,7 +1570,7 @@
 	struct object_id tree, parent, commit;
 	const struct object_id *old_oid;
 	struct commit_list *parents = NULL;
-	const char *reflog_msg, *author;
+	const char *reflog_msg, *author, *committer = NULL;
 	struct strbuf sb = STRBUF_INIT;
 
 	if (run_hook_le(NULL, "pre-applypatch", NULL))
@@ -1580,11 +1594,15 @@
 			IDENT_STRICT);
 
 	if (state->committer_date_is_author_date)
-		setenv("GIT_COMMITTER_DATE",
-			state->ignore_date ? "" : state->author_date, 1);
+		committer = fmt_ident(state->committer_name,
+				      state->author_email, WANT_COMMITTER_IDENT,
+				      state->ignore_date ? NULL
+							 : state->author_date,
+				      IDENT_STRICT);
 
-	if (commit_tree(state->msg, state->msg_len, &tree, parents, &commit,
-			author, state->sign_commit))
+	if (commit_tree_extended(state->msg, state->msg_len, &tree, parents,
+				 &commit, author, committer, state->sign_commit,
+				 NULL))
 		die(_("failed to write commit object"));
 
 	reflog_msg = getenv("GIT_REFLOG_ACTION");
diff --git a/bugreport.c b/builtin/bugreport.c
similarity index 95%
rename from bugreport.c
rename to builtin/bugreport.c
index 7ca0fba..3ad4b9b 100644
--- a/bugreport.c
+++ b/builtin/bugreport.c
@@ -1,4 +1,4 @@
-#include "cache.h"
+#include "builtin.h"
 #include "parse-options.h"
 #include "strbuf.h"
 #include "help.h"
@@ -119,7 +119,7 @@
 	strbuf_addf(buf, "\n\n[%s]\n", title);
 }
 
-int cmd_main(int argc, const char **argv)
+int cmd_bugreport(int argc, const char **argv, const char *prefix)
 {
 	struct strbuf buffer = STRBUF_INIT;
 	struct strbuf report_path = STRBUF_INIT;
@@ -127,8 +127,6 @@
 	time_t now = time(NULL);
 	char *option_output = NULL;
 	char *option_suffix = "%Y-%m-%d-%H%M";
-	int nongit_ok = 0;
-	const char *prefix = NULL;
 	const char *user_relative_path = NULL;
 
 	const struct option bugreport_options[] = {
@@ -139,8 +137,6 @@
 		OPT_END()
 	};
 
-	prefix = setup_git_directory_gently(&nongit_ok);
-
 	argc = parse_options(argc, argv, prefix, bugreport_options,
 			     bugreport_usage, 0);
 
@@ -170,7 +166,7 @@
 	get_system_info(&buffer);
 
 	get_header(&buffer, _("Enabled Hooks"));
-	get_populated_hooks(&buffer, nongit_ok);
+	get_populated_hooks(&buffer, !startup_info->have_repository);
 
 	/* fopen doesn't offer us an O_EXCL alternative, except with glibc. */
 	report = open(report_path.buf, O_CREAT | O_EXCL | O_WRONLY, 0666);
diff --git a/builtin/checkout.c b/builtin/checkout.c
index bba6410..6ec8209 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -1709,6 +1709,8 @@
 		die(_("--pathspec-file-nul requires --pathspec-from-file"));
 	}
 
+	opts->pathspec.recursive = 1;
+
 	if (opts->pathspec.nr) {
 		if (1 < !!opts->writeout_stage + !!opts->force + !!opts->merge)
 			die(_("git checkout: --ours/--theirs, --force and --merge are incompatible when\n"
diff --git a/builtin/commit.c b/builtin/commit.c
index 69ac78d..5d91b13 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -847,21 +847,19 @@
 			if (cleanup_mode == COMMIT_MSG_CLEANUP_SCISSORS &&
 				!merge_contains_scissors)
 				wt_status_add_cut_line(s->fp);
-			status_printf_ln(s, GIT_COLOR_NORMAL,
-			    whence == FROM_MERGE
-				? _("\n"
-					"It looks like you may be committing a merge.\n"
-					"If this is not correct, please remove the file\n"
-					"	%s\n"
-					"and try again.\n")
-				: _("\n"
-					"It looks like you may be committing a cherry-pick.\n"
-					"If this is not correct, please remove the file\n"
-					"	%s\n"
-					"and try again.\n"),
+			status_printf_ln(
+				s, GIT_COLOR_NORMAL,
 				whence == FROM_MERGE ?
-					git_path_merge_head(the_repository) :
-					git_path_cherry_pick_head(the_repository));
+					      _("\n"
+					  "It looks like you may be committing a merge.\n"
+					  "If this is not correct, please run\n"
+					  "	git update-ref -d MERGE_HEAD\n"
+					  "and try again.\n") :
+					      _("\n"
+					  "It looks like you may be committing a cherry-pick.\n"
+					  "If this is not correct, please run\n"
+					  "	git update-ref -d CHERRY_PICK_HEAD\n"
+					  "and try again.\n"));
 		}
 
 		fprintf(s->fp, "\n");
@@ -1674,8 +1672,8 @@
 	}
 
 	if (commit_tree_extended(sb.buf, sb.len, &active_cache_tree->oid,
-				 parents, &oid, author_ident.buf, sign_commit,
-				 extra)) {
+				 parents, &oid, author_ident.buf, NULL,
+				 sign_commit, extra)) {
 		rollback_index_files();
 		die(_("failed to write commit object"));
 	}
diff --git a/credential-cache--daemon.c b/builtin/credential-cache--daemon.c
similarity index 90%
rename from credential-cache--daemon.c
rename to builtin/credential-cache--daemon.c
index ec1271f..c61f123 100644
--- a/credential-cache--daemon.c
+++ b/builtin/credential-cache--daemon.c
@@ -1,9 +1,12 @@
-#include "cache.h"
+#include "builtin.h"
+#include "parse-options.h"
+
+#ifndef NO_UNIX_SOCKETS
+
 #include "config.h"
 #include "tempfile.h"
 #include "credential.h"
 #include "unix-socket.h"
-#include "parse-options.h"
 
 struct credential_cache_entry {
 	struct credential item;
@@ -257,7 +260,7 @@
 	free(path_copy);
 }
 
-int cmd_main(int argc, const char **argv)
+int cmd_credential_cache_daemon(int argc, const char **argv, const char *prefix)
 {
 	struct tempfile *socket_file;
 	const char *socket_path;
@@ -275,7 +278,7 @@
 
 	git_config_get_bool("credentialcache.ignoresighup", &ignore_sighup);
 
-	argc = parse_options(argc, argv, NULL, options, usage, 0);
+	argc = parse_options(argc, argv, prefix, options, usage, 0);
 	socket_path = argv[0];
 
 	if (!socket_path)
@@ -295,3 +298,21 @@
 
 	return 0;
 }
+
+#else
+
+int cmd_credential_cache_daemon(int argc, const char **argv, const char *prefix)
+{
+	const char * const usage[] = {
+		"git credential-cache--daemon [options] <action>",
+		"",
+		"credential-cache--daemon is disabled in this build of Git",
+		NULL
+	};
+	struct option options[] = { OPT_END() };
+
+	argc = parse_options(argc, argv, prefix, options, usage, 0);
+	die(_("credential-cache--daemon unavailable; no unix socket support"));
+}
+
+#endif /* NO_UNIX_SOCKET */
diff --git a/credential-cache.c b/builtin/credential-cache.c
similarity index 80%
rename from credential-cache.c
rename to builtin/credential-cache.c
index 1cccc3a..9b3f709 100644
--- a/credential-cache.c
+++ b/builtin/credential-cache.c
@@ -1,7 +1,10 @@
-#include "cache.h"
+#include "builtin.h"
+#include "parse-options.h"
+
+#ifndef NO_UNIX_SOCKETS
+
 #include "credential.h"
 #include "string-list.h"
-#include "parse-options.h"
 #include "unix-socket.h"
 #include "run-command.h"
 
@@ -39,13 +42,13 @@
 static void spawn_daemon(const char *socket)
 {
 	struct child_process daemon = CHILD_PROCESS_INIT;
-	const char *argv[] = { NULL, NULL, NULL };
 	char buf[128];
 	int r;
 
-	argv[0] = "git-credential-cache--daemon";
-	argv[1] = socket;
-	daemon.argv = argv;
+	strvec_pushl(&daemon.args,
+		     "credential-cache--daemon", socket,
+		     NULL);
+	daemon.git_cmd = 1;
 	daemon.no_stdin = 1;
 	daemon.out = -1;
 
@@ -96,7 +99,7 @@
 	return socket;
 }
 
-int cmd_main(int argc, const char **argv)
+int cmd_credential_cache(int argc, const char **argv, const char *prefix)
 {
 	char *socket_path = NULL;
 	int timeout = 900;
@@ -113,7 +116,7 @@
 		OPT_END()
 	};
 
-	argc = parse_options(argc, argv, NULL, options, usage, 0);
+	argc = parse_options(argc, argv, prefix, options, usage, 0);
 	if (!argc)
 		usage_with_options(usage, options);
 	op = argv[0];
@@ -134,3 +137,21 @@
 
 	return 0;
 }
+
+#else
+
+int cmd_credential_cache(int argc, const char **argv, const char *prefix)
+{
+	const char * const usage[] = {
+		"git credential-cache [options] <action>",
+		"",
+		"credential-cache is disabled in this build of Git",
+		NULL
+	};
+	struct option options[] = { OPT_END() };
+
+	argc = parse_options(argc, argv, prefix, options, usage, 0);
+	die(_("credential-cache unavailable; no unix socket support"));
+}
+
+#endif /* NO_UNIX_SOCKETS */
diff --git a/credential-store.c b/builtin/credential-store.c
similarity index 96%
rename from credential-store.c
rename to builtin/credential-store.c
index 294e771..5331ab1 100644
--- a/credential-store.c
+++ b/builtin/credential-store.c
@@ -1,4 +1,4 @@
-#include "cache.h"
+#include "builtin.h"
 #include "lockfile.h"
 #include "credential.h"
 #include "string-list.h"
@@ -143,7 +143,7 @@
 			return; /* Found credential */
 }
 
-int cmd_main(int argc, const char **argv)
+int cmd_credential_store(int argc, const char **argv, const char *prefix)
 {
 	const char * const usage[] = {
 		"git credential-store [<options>] <action>",
@@ -161,7 +161,7 @@
 
 	umask(077);
 
-	argc = parse_options(argc, (const char **)argv, NULL, options, usage, 0);
+	argc = parse_options(argc, (const char **)argv, prefix, options, usage, 0);
 	if (argc != 1)
 		usage_with_options(usage, options);
 	op = argv[0];
diff --git a/fast-import.c b/builtin/fast-import.c
similarity index 99%
rename from fast-import.c
rename to builtin/fast-import.c
index c45fe74..1c85eaf 100644
--- a/fast-import.c
+++ b/builtin/fast-import.c
@@ -3511,14 +3511,13 @@
 	build_mark_map(&sub_marks_from, &sub_marks_to);
 }
 
-int cmd_main(int argc, const char **argv)
+int cmd_fast_import(int argc, const char **argv, const char *prefix)
 {
 	unsigned int i;
 
 	if (argc == 2 && !strcmp(argv[1], "-h"))
 		usage(fast_import_usage);
 
-	setup_git_directory();
 	reset_pack_idx_option(&pack_idx_opts);
 	git_pack_config();
 
diff --git a/builtin/fetch-pack.c b/builtin/fetch-pack.c
index bbb5c96..58b7c1f 100644
--- a/builtin/fetch-pack.c
+++ b/builtin/fetch-pack.c
@@ -153,10 +153,6 @@
 			args.from_promisor = 1;
 			continue;
 		}
-		if (!strcmp("--no-dependents", arg)) {
-			args.no_dependents = 1;
-			continue;
-		}
 		if (skip_prefix(arg, ("--" CL_ARG__FILTER "="), &arg)) {
 			parse_list_objects_filter(&args.filter_options, arg);
 			continue;
diff --git a/builtin/fetch.c b/builtin/fetch.c
index 0f23dd4..a6d3268 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -80,6 +80,7 @@
 static struct string_list server_options = STRING_LIST_INIT_DUP;
 static struct string_list negotiation_tip = STRING_LIST_INIT_NODUP;
 static int fetch_write_commit_graph = -1;
+static int stdin_refspecs = 0;
 
 static int git_fetch_config(const char *k, const char *v, void *cb)
 {
@@ -205,6 +206,8 @@
 		 N_("check for forced-updates on all updated branches")),
 	OPT_BOOL(0, "write-commit-graph", &fetch_write_commit_graph,
 		 N_("write the commit-graph after fetching")),
+	OPT_BOOL(0, "stdin", &stdin_refspecs,
+		 N_("accept refspecs from stdin")),
 	OPT_END()
 };
 
@@ -442,6 +445,7 @@
 	struct ref *orefs = NULL, **oref_tail = &orefs;
 
 	struct hashmap existing_refs;
+	int existing_refs_populated = 0;
 
 	if (rs->nr) {
 		struct refspec *fetch_refspec;
@@ -535,15 +539,18 @@
 
 	ref_map = ref_remove_duplicates(ref_map);
 
-	refname_hash_init(&existing_refs);
-	for_each_ref(add_one_refname, &existing_refs);
-
 	for (rm = ref_map; rm; rm = rm->next) {
 		if (rm->peer_ref) {
 			const char *refname = rm->peer_ref->name;
 			struct refname_hash_entry *peer_item;
 			unsigned int hash = strhash(refname);
 
+			if (!existing_refs_populated) {
+				refname_hash_init(&existing_refs);
+				for_each_ref(add_one_refname, &existing_refs);
+				existing_refs_populated = 1;
+			}
+
 			peer_item = hashmap_get_entry_from_hash(&existing_refs,
 						hash, refname,
 						struct refname_hash_entry, ent);
@@ -553,7 +560,8 @@
 			}
 		}
 	}
-	hashmap_free_entries(&existing_refs, struct refname_hash_entry, ent);
+	if (existing_refs_populated)
+		hashmap_free_entries(&existing_refs, struct refname_hash_entry, ent);
 
 	return ref_map;
 }
@@ -1015,11 +1023,17 @@
 				rc |= update_local_ref(ref, what, rm, &note,
 						       summary_width);
 				free(ref);
-			} else
+			} else if (write_fetch_head || dry_run) {
+				/*
+				 * Display fetches written to FETCH_HEAD (or
+				 * would be written to FETCH_HEAD, if --dry-run
+				 * is set).
+				 */
 				format_display(&note, '*',
 					       *kind ? kind : "branch", NULL,
 					       *what ? what : "HEAD",
 					       "FETCH_HEAD", summary_width);
+			}
 			if (note.len) {
 				if (verbosity >= 0 && !shown_url) {
 					fprintf(stderr, _("From %.*s\n"),
@@ -1680,7 +1694,8 @@
 	return;
 }
 
-static int fetch_one(struct remote *remote, int argc, const char **argv, int prune_tags_ok)
+static int fetch_one(struct remote *remote, int argc, const char **argv,
+		     int prune_tags_ok, int use_stdin_refspecs)
 {
 	struct refspec rs = REFSPEC_INIT_FETCH;
 	int i;
@@ -1737,6 +1752,13 @@
 		}
 	}
 
+	if (use_stdin_refspecs) {
+		struct strbuf line = STRBUF_INIT;
+		while (strbuf_getline_lf(&line, stdin) != EOF)
+			refspec_append(&rs, line.buf);
+		strbuf_release(&line);
+	}
+
 	if (server_options.nr)
 		gtransport->server_options = &server_options;
 
@@ -1771,12 +1793,18 @@
 		free(anon);
 	}
 
-	fetch_config_from_gitmodules(&submodule_fetch_jobs_config,
-				     &recurse_submodules);
 	git_config(git_fetch_config, NULL);
 
 	argc = parse_options(argc, argv, prefix,
 			     builtin_fetch_options, builtin_fetch_usage, 0);
+	if (recurse_submodules != RECURSE_SUBMODULES_OFF) {
+		int *sfjc = submodule_fetch_jobs_config == -1
+			    ? &submodule_fetch_jobs_config : NULL;
+		int *rs = recurse_submodules == RECURSE_SUBMODULES_DEFAULT
+			  ? &recurse_submodules : NULL;
+
+		fetch_config_from_gitmodules(sfjc, rs);
+	}
 
 	if (deepen_relative) {
 		if (deepen_relative < 0)
@@ -1837,7 +1865,7 @@
 	if (remote) {
 		if (filter_options.choice || has_promisor_remote())
 			fetch_one_setup_partial(remote);
-		result = fetch_one(remote, argc, argv, prune_tags_ok);
+		result = fetch_one(remote, argc, argv, prune_tags_ok, stdin_refspecs);
 	} else {
 		int max_children = max_jobs;
 
@@ -1845,6 +1873,10 @@
 			die(_("--filter can only be used with the remote "
 			      "configured in extensions.partialclone"));
 
+		if (stdin_refspecs)
+			die(_("--stdin can only be used when fetching "
+			      "from one remote"));
+
 		if (max_children < 0)
 			max_children = fetch_parallel_config;
 
diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index f865666..9721bf1 100644
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -1798,9 +1798,22 @@
 
 	if (HAVE_THREADS && !nr_threads) {
 		nr_threads = online_cpus();
-		/* An experiment showed that more threads does not mean faster */
-		if (nr_threads > 3)
-			nr_threads = 3;
+		/*
+		 * Experiments show that going above 20 threads doesn't help,
+		 * no matter how many cores you have. Below that, we tend to
+		 * max at half the number of online_cpus(), presumably because
+		 * half of those are hyperthreads rather than full cores. We'll
+		 * never reduce the level below "3", though, to match a
+		 * historical value that nobody complained about.
+		 */
+		if (nr_threads < 4)
+			; /* too few cores to consider capping */
+		else if (nr_threads < 6)
+			nr_threads = 3; /* historic cap */
+		else if (nr_threads < 40)
+			nr_threads /= 2;
+		else
+			nr_threads = 20; /* hard cap */
 	}
 
 	curr_pack = open_pack_file(pack_name);
diff --git a/builtin/merge.c b/builtin/merge.c
index 74829a8..b9a89ba 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -1348,7 +1348,7 @@
 		else
 			die(_("You have not concluded your merge (MERGE_HEAD exists)."));
 	}
-	if (file_exists(git_path_cherry_pick_head(the_repository))) {
+	if (ref_exists("CHERRY_PICK_HEAD")) {
 		if (advice_resolve_conflict)
 			die(_("You have not concluded your cherry-pick (CHERRY_PICK_HEAD exists).\n"
 			    "Please, commit your changes before you merge."));
diff --git a/builtin/rebase.c b/builtin/rebase.c
index dadb52f..c4ff203 100644
--- a/builtin/rebase.c
+++ b/builtin/rebase.c
@@ -92,6 +92,8 @@
 	int autosquash;
 	char *gpg_sign_opt;
 	int autostash;
+	int committer_date_is_author_date;
+	int ignore_date;
 	char *cmd;
 	int allow_empty_message;
 	int rebase_merges, rebase_cousins;
@@ -130,8 +132,12 @@
 	replay.quiet = !(opts->flags & REBASE_NO_QUIET);
 	replay.verbose = opts->flags & REBASE_VERBOSE;
 	replay.reschedule_failed_exec = opts->reschedule_failed_exec;
+	replay.committer_date_is_author_date =
+					opts->committer_date_is_author_date;
+	replay.ignore_date = opts->ignore_date;
 	replay.gpg_sign = xstrdup_or_null(opts->gpg_sign_opt);
 	replay.strategy = opts->strategy;
+
 	if (opts->strategy_opts)
 		parse_strategy_opts(&replay, opts->strategy_opts);
 
@@ -1289,6 +1295,7 @@
 	struct strbuf revisions = STRBUF_INIT;
 	struct strbuf buf = STRBUF_INIT;
 	struct object_id merge_base;
+	int ignore_whitespace = 0;
 	enum action action = ACTION_NONE;
 	const char *gpg_sign = NULL;
 	struct string_list exec = STRING_LIST_INIT_NODUP;
@@ -1318,16 +1325,17 @@
 			PARSE_OPT_NOARG, NULL, REBASE_DIFFSTAT },
 		OPT_BOOL(0, "signoff", &options.signoff,
 			 N_("add a Signed-off-by: line to each commit")),
-		OPT_PASSTHRU_ARGV(0, "ignore-whitespace", &options.git_am_opts,
-				  NULL, N_("passed to 'git am'"),
-				  PARSE_OPT_NOARG),
-		OPT_PASSTHRU_ARGV(0, "committer-date-is-author-date",
-				  &options.git_am_opts, NULL,
-				  N_("passed to 'git am'"), PARSE_OPT_NOARG),
-		OPT_PASSTHRU_ARGV(0, "ignore-date", &options.git_am_opts, NULL,
-				  N_("passed to 'git am'"), PARSE_OPT_NOARG),
+		OPT_BOOL(0, "committer-date-is-author-date",
+			 &options.committer_date_is_author_date,
+			 N_("make committer date match author date")),
+		OPT_BOOL(0, "reset-author-date", &options.ignore_date,
+			 N_("ignore author date and use current date")),
+		OPT_HIDDEN_BOOL(0, "ignore-date", &options.ignore_date,
+				N_("synonym of --reset-author-date")),
 		OPT_PASSTHRU_ARGV('C', NULL, &options.git_am_opts, N_("n"),
 				  N_("passed to 'git apply'"), 0),
+		OPT_BOOL(0, "ignore-whitespace", &ignore_whitespace,
+			 N_("ignore changes in whitespace")),
 		OPT_PASSTHRU_ARGV(0, "whitespace", &options.git_am_opts,
 				  N_("action"), N_("passed to 'git apply'"), 0),
 		OPT_BIT('f', "force-rebase", &options.flags,
@@ -1624,12 +1632,12 @@
 	    options.autosquash) {
 		allow_preemptive_ff = 0;
 	}
+	if (options.committer_date_is_author_date || options.ignore_date)
+		options.flags |= REBASE_FORCE;
 
 	for (i = 0; i < options.git_am_opts.nr; i++) {
 		const char *option = options.git_am_opts.v[i], *p;
-		if (!strcmp(option, "--committer-date-is-author-date") ||
-		    !strcmp(option, "--ignore-date") ||
-		    !strcmp(option, "--whitespace=fix") ||
+		if (!strcmp(option, "--whitespace=fix") ||
 		    !strcmp(option, "--whitespace=strip"))
 			allow_preemptive_ff = 0;
 		else if (skip_prefix(option, "-C", &p)) {
@@ -1682,6 +1690,23 @@
 		imply_merge(&options, "--rebase-merges");
 	}
 
+	if (options.type == REBASE_APPLY) {
+		if (ignore_whitespace)
+			strvec_push(&options.git_am_opts,
+				    "--ignore-whitespace");
+		if (options.committer_date_is_author_date)
+			strvec_push(&options.git_am_opts,
+				    "--committer-date-is-author-date");
+		if (options.ignore_date)
+			strvec_push(&options.git_am_opts, "--ignore-date");
+	} else {
+		/* REBASE_MERGE and PRESERVE_MERGES */
+		if (ignore_whitespace) {
+			string_list_append(&strategy_options,
+					   "ignore-space-change");
+		}
+	}
+
 	if (strategy_options.nr) {
 		int i;
 
diff --git a/builtin/remote.c b/builtin/remote.c
index c8240e9..542f56e 100644
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -478,6 +478,7 @@
 	struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 	struct refspec_item refspec;
 
+	memset(&refspec, 0, sizeof(refspec));
 	refspec.force = 0;
 	refspec.pattern = 1;
 	refspec.src = refspec.dst = "refs/heads/*";
diff --git a/commit.c b/commit.c
index 4ce8cb3..bc741e7 100644
--- a/commit.c
+++ b/commit.c
@@ -1316,8 +1316,8 @@
 	int result;
 
 	append_merge_tag_headers(parents, &tail);
-	result = commit_tree_extended(msg, msg_len, tree, parents, ret,
-				      author, sign_commit, extra);
+	result = commit_tree_extended(msg, msg_len, tree, parents, ret, author,
+				      NULL, sign_commit, extra);
 	free_commit_extra_headers(extra);
 	return result;
 }
@@ -1440,7 +1440,8 @@
 int commit_tree_extended(const char *msg, size_t msg_len,
 			 const struct object_id *tree,
 			 struct commit_list *parents, struct object_id *ret,
-			 const char *author, const char *sign_commit,
+			 const char *author, const char *committer,
+			 const char *sign_commit,
 			 struct commit_extra_header *extra)
 {
 	int result;
@@ -1473,7 +1474,9 @@
 	if (!author)
 		author = git_author_info(IDENT_STRICT);
 	strbuf_addf(&buffer, "author %s\n", author);
-	strbuf_addf(&buffer, "committer %s\n", git_committer_info(IDENT_STRICT));
+	if (!committer)
+		committer = git_committer_info(IDENT_STRICT);
+	strbuf_addf(&buffer, "committer %s\n", committer);
 	if (!encoding_is_utf8)
 		strbuf_addf(&buffer, "encoding %s\n", git_commit_encoding);
 
diff --git a/commit.h b/commit.h
index e901538..bd73b84 100644
--- a/commit.h
+++ b/commit.h
@@ -270,10 +270,9 @@
 
 int commit_tree_extended(const char *msg, size_t msg_len,
 			 const struct object_id *tree,
-			 struct commit_list *parents,
-			 struct object_id *ret, const char *author,
-			 const char *sign_commit,
-			 struct commit_extra_header *);
+			 struct commit_list *parents, struct object_id *ret,
+			 const char *author, const char *committer,
+			 const char *sign_commit, struct commit_extra_header *);
 
 struct commit_extra_header *read_commit_extra_headers(struct commit *, const char **);
 
diff --git a/contrib/buildsystems/CMakeLists.txt b/contrib/buildsystems/CMakeLists.txt
index 47215df..5007f17 100644
--- a/contrib/buildsystems/CMakeLists.txt
+++ b/contrib/buildsystems/CMakeLists.txt
@@ -501,14 +501,8 @@
 
 #programs
 set(PROGRAMS_BUILT
-	git git-bugreport git-credential-store git-daemon git-fast-import git-http-backend git-sh-i18n--envsubst
-	git-shell git-remote-testsvn)
-
-if(NO_UNIX_SOCKETS)
-	list(APPEND excluded_progs git-credential-cache git-credential-cache--daemon)
-else()
-	list(APPEND PROGRAMS_BUILT git-credential-cache git-credential-cache--daemon)
-endif()
+	git git-daemon git-http-backend git-sh-i18n--envsubst
+	git-shell)
 
 if(NOT CURL_FOUND)
 	list(APPEND excluded_progs git-http-fetch git-http-push)
@@ -574,12 +568,6 @@
 list(TRANSFORM libxdiff_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/")
 add_library(xdiff STATIC ${libxdiff_SOURCES})
 
-#libvcs-svn
-parse_makefile_for_sources(libvcs-svn_SOURCES "VCSSVN_OBJS")
-
-list(TRANSFORM libvcs-svn_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/")
-add_library(vcs-svn STATIC ${libvcs-svn_SOURCES})
-
 if(WIN32)
 	if(NOT MSVC)#use windres when compiling with gcc and clang
 		add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/git.res
@@ -630,18 +618,9 @@
 add_executable(git ${CMAKE_SOURCE_DIR}/git.c ${git_SOURCES})
 target_link_libraries(git common-main)
 
-add_executable(git-bugreport ${CMAKE_SOURCE_DIR}/bugreport.c)
-target_link_libraries(git-bugreport common-main)
-
-add_executable(git-credential-store ${CMAKE_SOURCE_DIR}/credential-store.c)
-target_link_libraries(git-credential-store common-main)
-
 add_executable(git-daemon ${CMAKE_SOURCE_DIR}/daemon.c)
 target_link_libraries(git-daemon common-main)
 
-add_executable(git-fast-import ${CMAKE_SOURCE_DIR}/fast-import.c)
-target_link_libraries(git-fast-import common-main)
-
 add_executable(git-http-backend ${CMAKE_SOURCE_DIR}/http-backend.c)
 target_link_libraries(git-http-backend common-main)
 
@@ -669,18 +648,6 @@
 	endif()
 endif()
 
-add_executable(git-remote-testsvn ${CMAKE_SOURCE_DIR}/remote-testsvn.c)
-target_link_libraries(git-remote-testsvn common-main vcs-svn)
-
-if(NOT NO_UNIX_SOCKETS)
-	add_executable(git-credential-cache ${CMAKE_SOURCE_DIR}/credential-cache.c)
-	target_link_libraries(git-credential-cache common-main)
-
-	add_executable(git-credential-cache--daemon ${CMAKE_SOURCE_DIR}/credential-cache--daemon.c)
-	target_link_libraries(git-credential-cache--daemon common-main)
-endif()
-
-
 set(git_builtin_extra
 	cherry cherry-pick format-patch fsck-objects
 	init merge-subtree restore show
@@ -856,12 +823,6 @@
 add_executable(test-fake-ssh ${CMAKE_SOURCE_DIR}/t/helper/test-fake-ssh.c)
 target_link_libraries(test-fake-ssh common-main)
 
-add_executable(test-line-buffer ${CMAKE_SOURCE_DIR}/t/helper/test-line-buffer.c)
-target_link_libraries(test-line-buffer common-main vcs-svn)
-
-add_executable(test-svn-fe ${CMAKE_SOURCE_DIR}/t/helper/test-svn-fe.c)
-target_link_libraries(test-svn-fe common-main vcs-svn)
-
 #test-tool
 parse_makefile_for_sources(test-tool_SOURCES "TEST_BUILTINS_OBJS")
 
@@ -869,13 +830,13 @@
 add_executable(test-tool ${CMAKE_SOURCE_DIR}/t/helper/test-tool.c ${test-tool_SOURCES})
 target_link_libraries(test-tool common-main)
 
-set_target_properties(test-fake-ssh test-line-buffer test-svn-fe test-tool
+set_target_properties(test-fake-ssh test-tool
 			PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/t/helper)
 
 if(MSVC)
-	set_target_properties(test-fake-ssh test-line-buffer test-svn-fe test-tool
+	set_target_properties(test-fake-ssh test-tool
 				PROPERTIES RUNTIME_OUTPUT_DIRECTORY_DEBUG ${CMAKE_BINARY_DIR}/t/helper)
-	set_target_properties(test-fake-ssh test-line-buffer test-svn-fe test-tool
+	set_target_properties(test-fake-ssh test-tool
 				PROPERTIES RUNTIME_OUTPUT_DIRECTORY_RELEASE ${CMAKE_BINARY_DIR}/t/helper)
 endif()
 
@@ -884,7 +845,7 @@
 	git git-upload-pack git-receive-pack git-upload-archive git-shell git-remote-ext)
 
 set(wrapper_test_scripts
-	test-fake-ssh test-line-buffer test-svn-fe test-tool)
+	test-fake-ssh test-tool)
 
 
 foreach(script ${wrapper_scripts})
@@ -985,7 +946,6 @@
 	file(COPY ${CMAKE_SOURCE_DIR}/mergetools/tkdiff DESTINATION ${CMAKE_BINARY_DIR}/mergetools/)
 	file(COPY ${CMAKE_SOURCE_DIR}/contrib/completion/git-prompt.sh DESTINATION ${CMAKE_BINARY_DIR}/contrib/completion/)
 	file(COPY ${CMAKE_SOURCE_DIR}/contrib/completion/git-completion.bash DESTINATION ${CMAKE_BINARY_DIR}/contrib/completion/)
-	file(COPY ${CMAKE_SOURCE_DIR}/contrib/svn-fe/svnrdump_sim.py DESTINATION ${CMAKE_BINARY_DIR}/contrib/svn-fe/)
 endif()
 
 file(GLOB test_scipts "${CMAKE_SOURCE_DIR}/t/t[0-9]*.sh")
diff --git a/contrib/svn-fe/.gitignore b/contrib/svn-fe/.gitignore
deleted file mode 100644
index 02a7791..0000000
--- a/contrib/svn-fe/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-/*.xml
-/*.1
-/*.html
-/svn-fe
diff --git a/contrib/svn-fe/Makefile b/contrib/svn-fe/Makefile
deleted file mode 100644
index e8651aa..0000000
--- a/contrib/svn-fe/Makefile
+++ /dev/null
@@ -1,105 +0,0 @@
-all:: svn-fe$X
-
-CC = cc
-RM = rm -f
-MV = mv
-
-CFLAGS = -g -O2 -Wall
-LDFLAGS =
-EXTLIBS = -lz
-
-include ../../config.mak.uname
--include ../../config.mak.autogen
--include ../../config.mak
-
-ifeq ($(uname_S),Darwin)
-	ifndef NO_FINK
-		ifeq ($(shell test -d /sw/lib && echo y),y)
-			CFLAGS += -I/sw/include
-			LDFLAGS += -L/sw/lib
-		endif
-	endif
-	ifndef NO_DARWIN_PORTS
-		ifeq ($(shell test -d /opt/local/lib && echo y),y)
-			CFLAGS += -I/opt/local/include
-			LDFLAGS += -L/opt/local/lib
-		endif
-	endif
-endif
-
-ifndef NO_OPENSSL
-	EXTLIBS += -lssl
-	ifdef NEEDS_CRYPTO_WITH_SSL
-		EXTLIBS += -lcrypto
-	endif
-endif
-
-ifndef NO_PTHREADS
-	CFLAGS += $(PTHREADS_CFLAGS)
-	EXTLIBS += $(PTHREAD_LIBS)
-endif
-
-ifdef HAVE_CLOCK_GETTIME
-	CFLAGS += -DHAVE_CLOCK_GETTIME
-	EXTLIBS += -lrt
-endif
-
-ifdef NEEDS_LIBICONV
-	EXTLIBS += -liconv
-endif
-
-GIT_LIB = ../../libgit.a
-VCSSVN_LIB = ../../vcs-svn/lib.a
-XDIFF_LIB = ../../xdiff/lib.a
-
-LIBS = $(VCSSVN_LIB) $(GIT_LIB) $(XDIFF_LIB)
-
-QUIET_SUBDIR0 = +$(MAKE) -C # space to separate -C and subdir
-QUIET_SUBDIR1 =
-
-ifneq ($(findstring $(MAKEFLAGS),w),w)
-PRINT_DIR = --no-print-directory
-else # "make -w"
-NO_SUBDIR = :
-endif
-
-ifneq ($(findstring $(MAKEFLAGS),s),s)
-ifndef V
-	QUIET_CC      = @echo '   ' CC $@;
-	QUIET_LINK    = @echo '   ' LINK $@;
-	QUIET_SUBDIR0 = +@subdir=
-	QUIET_SUBDIR1 = ;$(NO_SUBDIR) echo '   ' SUBDIR $$subdir; \
-	                $(MAKE) $(PRINT_DIR) -C $$subdir
-endif
-endif
-
-svn-fe$X: svn-fe.o $(VCSSVN_LIB) $(XDIFF_LIB) $(GIT_LIB)
-	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(EXTLIBS) -o $@ svn-fe.o $(LIBS)
-
-svn-fe.o: svn-fe.c ../../vcs-svn/svndump.h
-	$(QUIET_CC)$(CC) $(CFLAGS) -I../../vcs-svn -o $*.o -c $<
-
-svn-fe.html: svn-fe.txt
-	$(QUIET_SUBDIR0)../../Documentation $(QUIET_SUBDIR1) \
-		MAN_TXT=../contrib/svn-fe/svn-fe.txt \
-		../contrib/svn-fe/$@
-
-svn-fe.1: svn-fe.txt
-	$(QUIET_SUBDIR0)../../Documentation $(QUIET_SUBDIR1) \
-		MAN_TXT=../contrib/svn-fe/svn-fe.txt \
-		../contrib/svn-fe/$@
-	$(MV) ../../Documentation/svn-fe.1 .
-
-../../vcs-svn/lib.a: FORCE
-	$(QUIET_SUBDIR0)../.. $(QUIET_SUBDIR1) vcs-svn/lib.a
-
-../../xdiff/lib.a: FORCE
-	$(QUIET_SUBDIR0)../.. $(QUIET_SUBDIR1) xdiff/lib.a
-
-../../libgit.a: FORCE
-	$(QUIET_SUBDIR0)../.. $(QUIET_SUBDIR1) libgit.a
-
-clean:
-	$(RM) svn-fe$X svn-fe.o svn-fe.html svn-fe.xml svn-fe.1
-
-.PHONY: all clean FORCE
diff --git a/contrib/svn-fe/svn-fe.c b/contrib/svn-fe/svn-fe.c
deleted file mode 100644
index f363505..0000000
--- a/contrib/svn-fe/svn-fe.c
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * This file is in the public domain.
- * You may freely use, modify, distribute, and relicense it.
- */
-
-#include <stdlib.h>
-#include "svndump.h"
-
-int main(int argc, char **argv)
-{
-	if (svndump_init(NULL))
-		return 1;
-	svndump_read((argc > 1) ? argv[1] : NULL, "refs/heads/master",
-			"refs/notes/svn/revs");
-	svndump_deinit();
-	svndump_reset();
-	return 0;
-}
diff --git a/contrib/svn-fe/svn-fe.txt b/contrib/svn-fe/svn-fe.txt
deleted file mode 100644
index 19333fc..0000000
--- a/contrib/svn-fe/svn-fe.txt
+++ /dev/null
@@ -1,71 +0,0 @@
-svn-fe(1)
-=========
-
-NAME
-----
-svn-fe - convert an SVN "dumpfile" to a fast-import stream
-
-SYNOPSIS
---------
-[verse]
-mkfifo backchannel &&
-svnadmin dump --deltas REPO |
-	svn-fe [url] 3<backchannel |
-	git fast-import --cat-blob-fd=3 3>backchannel
-
-DESCRIPTION
------------
-
-Converts a Subversion dumpfile into input suitable for
-git-fast-import(1) and similar importers. REPO is a path to a
-Subversion repository mirrored on the local disk. Remote Subversion
-repositories can be mirrored on local disk using the `svnsync`
-command.
-
-Note: this tool is very young.  The details of its commandline
-interface may change in backward incompatible ways.
-
-INPUT FORMAT
-------------
-Subversion's repository dump format is documented in full in
-`notes/dump-load-format.txt` from the Subversion source tree.
-Files in this format can be generated using the 'svnadmin dump' or
-'svk admin dump' command.
-
-OUTPUT FORMAT
--------------
-The fast-import format is documented by the git-fast-import(1)
-manual page.
-
-NOTES
------
-Subversion dumps do not record a separate author and committer for
-each revision, nor do they record a separate display name and email
-address for each author.  Like git-svn(1), 'svn-fe' will use the name
-
----------
-user <user@UUID>
----------
-
-as committer, where 'user' is the value of the `svn:author` property
-and 'UUID' the repository's identifier.
-
-To support incremental imports, 'svn-fe' puts a `git-svn-id` line at
-the end of each commit log message if passed a URL on the command
-line.  This line has the form `git-svn-id: URL@REVNO UUID`.
-
-The resulting repository will generally require further processing
-to put each project in its own repository and to separate the history
-of each branch.  The 'git filter-repo --subdirectory-filter' command
-may be useful for this purpose.
-
-BUGS
-----
-Empty directories and unknown properties are silently discarded.
-
-The exit status does not reflect whether an error was detected.
-
-SEE ALSO
---------
-git-svn(1), svn2git(1), svk(1), git-filter-repo(1), git-fast-import(1),
-https://svn.apache.org/repos/asf/subversion/trunk/notes/dump-load-format.txt
diff --git a/contrib/svn-fe/svnrdump_sim.py b/contrib/svn-fe/svnrdump_sim.py
deleted file mode 100755
index 8a3cee6..0000000
--- a/contrib/svn-fe/svnrdump_sim.py
+++ /dev/null
@@ -1,68 +0,0 @@
-#!/usr/bin/env python
-"""
-Simulates svnrdump by replaying an existing dump from a file, taking care
-of the specified revision range.
-To simulate incremental imports the environment variable SVNRMAX can be set
-to the highest revision that should be available.
-"""
-import sys
-import os
-
-if sys.hexversion < 0x02040000:
-    # The limiter is the ValueError() calls. This may be too conservative
-    sys.stderr.write("svnrdump-sim.py: requires Python 2.4 or later.\n")
-    sys.exit(1)
-
-
-def getrevlimit():
-    var = 'SVNRMAX'
-    if var in os.environ:
-        return os.environ[var]
-    return None
-
-
-def writedump(url, lower, upper):
-    if url.startswith('sim://'):
-        filename = url[6:]
-        if filename[-1] == '/':
-            filename = filename[:-1]  # remove terminating slash
-    else:
-        raise ValueError('sim:// url required')
-    f = open(filename, 'r')
-    state = 'header'
-    wroterev = False
-    while(True):
-        l = f.readline()
-        if l == '':
-            break
-        if state == 'header' and l.startswith('Revision-number: '):
-            state = 'prefix'
-        if state == 'prefix' and l == 'Revision-number: %s\n' % lower:
-            state = 'selection'
-        if not upper == 'HEAD' and state == 'selection' and \
-                l == 'Revision-number: %s\n' % upper:
-            break
-
-        if state == 'header' or state == 'selection':
-            if state == 'selection':
-                wroterev = True
-            sys.stdout.write(l)
-    return wroterev
-
-if __name__ == "__main__":
-    if not (len(sys.argv) in (3, 4, 5)):
-        print("usage: %s dump URL -rLOWER:UPPER")
-        sys.exit(1)
-    if not sys.argv[1] == 'dump':
-        raise NotImplementedError('only "dump" is supported.')
-    url = sys.argv[2]
-    r = ('0', 'HEAD')
-    if len(sys.argv) == 4 and sys.argv[3][0:2] == '-r':
-        r = sys.argv[3][2:].lstrip().split(':')
-    if not getrevlimit() is None:
-        r[1] = getrevlimit()
-    if writedump(url, r[0], r[1]):
-        ret = 0
-    else:
-        ret = 1
-    sys.exit(ret)
diff --git a/convert.c b/convert.c
index 5724498..8e6c292 100644
--- a/convert.c
+++ b/convert.c
@@ -638,7 +638,6 @@
 	struct child_process child_process = CHILD_PROCESS_INIT;
 	struct filter_params *params = (struct filter_params *)data;
 	int write_err, status;
-	const char *argv[] = { NULL, NULL };
 
 	/* apply % substitution to cmd */
 	struct strbuf cmd = STRBUF_INIT;
@@ -656,9 +655,7 @@
 	strbuf_expand(&cmd, params->cmd, strbuf_expand_dict_cb, &dict);
 	strbuf_release(&path);
 
-	argv[0] = cmd.buf;
-
-	child_process.argv = argv;
+	strvec_push(&child_process.args, cmd.buf);
 	child_process.use_shell = 1;
 	child_process.in = -1;
 	child_process.out = out;
diff --git a/credential.c b/credential.c
index d8d226b..efc29dc 100644
--- a/credential.c
+++ b/credential.c
@@ -274,11 +274,9 @@
 				 int want_output)
 {
 	struct child_process helper = CHILD_PROCESS_INIT;
-	const char *argv[] = { NULL, NULL };
 	FILE *fp;
 
-	argv[0] = cmd;
-	helper.argv = argv;
+	strvec_push(&helper.args, cmd);
 	helper.use_shell = 1;
 	helper.in = -1;
 	if (want_output)
diff --git a/diff.c b/diff.c
index f175019..0299a73 100644
--- a/diff.c
+++ b/diff.c
@@ -3153,16 +3153,19 @@
 	gather_dirstat(options, &dir, changed, "", 0);
 }
 
+static void free_diffstat_file(struct diffstat_file *f)
+{
+	free(f->print_name);
+	free(f->name);
+	free(f->from_name);
+	free(f);
+}
+
 void free_diffstat_info(struct diffstat_t *diffstat)
 {
 	int i;
-	for (i = 0; i < diffstat->nr; i++) {
-		struct diffstat_file *f = diffstat->files[i];
-		free(f->print_name);
-		free(f->name);
-		free(f->from_name);
-		free(f);
-	}
+	for (i = 0; i < diffstat->nr; i++)
+		free_diffstat_file(diffstat->files[i]);
 	free(diffstat->files);
 }
 
@@ -3718,6 +3721,27 @@
 		if (xdi_diff_outf(&mf1, &mf2, discard_hunk_line,
 				  diffstat_consume, diffstat, &xpp, &xecfg))
 			die("unable to generate diffstat for %s", one->path);
+
+		if (DIFF_FILE_VALID(one) && DIFF_FILE_VALID(two)) {
+			struct diffstat_file *file =
+				diffstat->files[diffstat->nr - 1];
+			/*
+			 * Omit diffstats of modified files where nothing changed.
+			 * Even if !same_contents, this might be the case due to
+			 * ignoring whitespace changes, etc.
+			 *
+			 * But note that we special-case additions, deletions,
+			 * renames, and mode changes as adding an empty file,
+			 * for example is still of interest.
+			 */
+			if ((p->status == DIFF_STATUS_MODIFIED)
+				&& !file->added
+				&& !file->deleted
+				&& one->mode == two->mode) {
+				free_diffstat_file(file);
+				diffstat->nr--;
+			}
+		}
 	}
 
 	diff_free_filespec_data(one);
@@ -4319,7 +4343,10 @@
 	}
 	if (one && two && !oideq(&one->oid, &two->oid)) {
 		const unsigned hexsz = the_hash_algo->hexsz;
-		int abbrev = o->flags.full_index ? hexsz : DEFAULT_ABBREV;
+		int abbrev = o->abbrev ? o->abbrev : DEFAULT_ABBREV;
+
+		if (o->flags.full_index)
+			abbrev = hexsz;
 
 		if (o->flags.binary) {
 			mmfile_t mf;
diff --git a/fetch-negotiator.c b/fetch-negotiator.c
index 0a1357d..57ed578 100644
--- a/fetch-negotiator.c
+++ b/fetch-negotiator.c
@@ -2,6 +2,7 @@
 #include "fetch-negotiator.h"
 #include "negotiator/default.h"
 #include "negotiator/skipping.h"
+#include "negotiator/noop.h"
 #include "repository.h"
 
 void fetch_negotiator_init(struct repository *r,
@@ -13,6 +14,10 @@
 		skipping_negotiator_init(negotiator);
 		return;
 
+	case FETCH_NEGOTIATION_NOOP:
+		noop_negotiator_init(negotiator);
+		return;
+
 	case FETCH_NEGOTIATION_DEFAULT:
 	default:
 		default_negotiator_init(negotiator);
diff --git a/fetch-pack.c b/fetch-pack.c
index 7f20eca..b10c432 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -108,24 +108,48 @@
 		cb(negotiator, cache.items[i]);
 }
 
+static struct commit *deref_without_lazy_fetch(const struct object_id *oid,
+					       int mark_tags_complete)
+{
+	enum object_type type;
+	struct object_info info = { .typep = &type };
+
+	while (1) {
+		if (oid_object_info_extended(the_repository, oid, &info,
+					     OBJECT_INFO_SKIP_FETCH_OBJECT | OBJECT_INFO_QUICK))
+			return NULL;
+		if (type == OBJ_TAG) {
+			struct tag *tag = (struct tag *)
+				parse_object(the_repository, oid);
+
+			if (!tag->tagged)
+				return NULL;
+			if (mark_tags_complete)
+				tag->object.flags |= COMPLETE;
+			oid = &tag->tagged->oid;
+		} else {
+			break;
+		}
+	}
+	if (type == OBJ_COMMIT)
+		return (struct commit *) parse_object(the_repository, oid);
+	return NULL;
+}
+
 static int rev_list_insert_ref(struct fetch_negotiator *negotiator,
-			       const char *refname,
 			       const struct object_id *oid)
 {
-	struct object *o = deref_tag(the_repository,
-				     parse_object(the_repository, oid),
-				     refname, 0);
+	struct commit *c = deref_without_lazy_fetch(oid, 0);
 
-	if (o && o->type == OBJ_COMMIT)
-		negotiator->add_tip(negotiator, (struct commit *)o);
-
+	if (c)
+		negotiator->add_tip(negotiator, c);
 	return 0;
 }
 
 static int rev_list_insert_ref_oid(const char *refname, const struct object_id *oid,
 				   int flag, void *cb_data)
 {
-	return rev_list_insert_ref(cb_data, refname, oid);
+	return rev_list_insert_ref(cb_data, oid);
 }
 
 enum ack_type {
@@ -201,7 +225,7 @@
 static void insert_one_alternate_object(struct fetch_negotiator *negotiator,
 					struct object *obj)
 {
-	rev_list_insert_ref(negotiator, NULL, &obj->oid);
+	rev_list_insert_ref(negotiator, &obj->oid);
 }
 
 #define INITIAL_FLUSH 16
@@ -230,13 +254,12 @@
 	int i;
 
 	if (!negotiation_tips) {
-		for_each_ref(rev_list_insert_ref_oid, negotiator);
+		for_each_rawref(rev_list_insert_ref_oid, negotiator);
 		return;
 	}
 
 	for (i = 0; i < negotiation_tips->nr; i++)
-		rev_list_insert_ref(negotiator, NULL,
-				    &negotiation_tips->oid[i]);
+		rev_list_insert_ref(negotiator, &negotiation_tips->oid[i]);
 	return;
 }
 
@@ -262,10 +285,8 @@
 			   PACKET_READ_CHOMP_NEWLINE |
 			   PACKET_READ_DIE_ON_ERR_PACKET);
 
-	if (!args->no_dependents) {
-		mark_tips(negotiator, args->negotiation_tips);
-		for_each_cached_alternate(negotiator, insert_one_alternate_object);
-	}
+	mark_tips(negotiator, args->negotiation_tips);
+	for_each_cached_alternate(negotiator, insert_one_alternate_object);
 
 	fetching = 0;
 	for ( ; refs ; refs = refs->next) {
@@ -282,12 +303,8 @@
 		 * We use lookup_object here because we are only
 		 * interested in the case we *know* the object is
 		 * reachable and we have already scanned it.
-		 *
-		 * Do this only if args->no_dependents is false (if it is true,
-		 * we cannot trust the object flags).
 		 */
-		if (!args->no_dependents &&
-		    ((o = lookup_object(the_repository, remote)) != NULL) &&
+		if (((o = lookup_object(the_repository, remote)) != NULL) &&
 				(o->flags & COMPLETE)) {
 			continue;
 		}
@@ -387,8 +404,6 @@
 	trace2_region_enter("fetch-pack", "negotiation_v0_v1", the_repository);
 	flushes = 0;
 	retval = -1;
-	if (args->no_dependents)
-		goto done;
 	while ((oid = negotiator->next(negotiator))) {
 		packet_buf_write(&req_buf, "have %s\n", oid_to_hex(oid));
 		print_verbose(args, "have %s", oid_to_hex(oid));
@@ -503,21 +518,11 @@
 
 static int mark_complete(const struct object_id *oid)
 {
-	struct object *o = parse_object(the_repository, oid);
+	struct commit *commit = deref_without_lazy_fetch(oid, 1);
 
-	while (o && o->type == OBJ_TAG) {
-		struct tag *t = (struct tag *) o;
-		if (!t->tagged)
-			break; /* broken repository */
-		o->flags |= COMPLETE;
-		o = parse_object(the_repository, &t->tagged->oid);
-	}
-	if (o && o->type == OBJ_COMMIT) {
-		struct commit *commit = (struct commit *)o;
-		if (!(commit->object.flags & COMPLETE)) {
-			commit->object.flags |= COMPLETE;
-			commit_list_insert(commit, &complete);
-		}
+	if (commit && !(commit->object.flags & COMPLETE)) {
+		commit->object.flags |= COMPLETE;
+		commit_list_insert(commit, &complete);
 	}
 	return 0;
 }
@@ -653,9 +658,7 @@
 
 /*
  * Mark recent commits available locally and reachable from a local ref as
- * COMPLETE. If args->no_dependents is false, also mark COMPLETE remote refs as
- * COMMON_REF (otherwise, we are not planning to participate in negotiation, and
- * thus do not need COMMON_REF marks).
+ * COMPLETE.
  *
  * The cutoff time for recency is determined by this heuristic: it is the
  * earliest commit time of the objects in refs that are commits and that we know
@@ -702,7 +705,7 @@
 	 */
 	trace2_region_enter("fetch-pack", "mark_complete_local_refs", NULL);
 	if (!args->deepen) {
-		for_each_ref(mark_complete_oid, NULL);
+		for_each_rawref(mark_complete_oid, NULL);
 		for_each_cached_alternate(NULL, mark_alternate_complete);
 		commit_list_sort_by_date(&complete);
 		if (cutoff)
@@ -716,16 +719,12 @@
 	 */
 	trace2_region_enter("fetch-pack", "mark_common_remote_refs", NULL);
 	for (ref = *refs; ref; ref = ref->next) {
-		struct object *o = deref_tag(the_repository,
-					     lookup_object(the_repository,
-					     &ref->old_oid),
-					     NULL, 0);
+		struct commit *c = deref_without_lazy_fetch(&ref->old_oid, 0);
 
-		if (!o || o->type != OBJ_COMMIT || !(o->flags & COMPLETE))
+		if (!c || !(c->object.flags & COMPLETE))
 			continue;
 
-		negotiator->known_common(negotiator,
-					 (struct commit *)o);
+		negotiator->known_common(negotiator, c);
 	}
 	trace2_region_leave("fetch-pack", "mark_common_remote_refs", NULL);
 
@@ -794,6 +793,10 @@
 	strbuf_release(&promisor_name);
 }
 
+/*
+ * Pass 1 as "only_packfile" if the pack received is the only pack in this
+ * fetch request (that is, if there were no packfile URIs provided).
+ */
 static int get_pack(struct fetch_pack_args *args,
 		    int xd[2], struct string_list *pack_lockfiles,
 		    int only_packfile,
@@ -866,13 +869,16 @@
 			 * have this responsibility.
 			 */
 			args->check_self_contained_and_connected = 0;
-		/*
-		 * If we're obtaining the filename of a lockfile, we'll use
-		 * that filename to write a .promisor file with more
-		 * information below. If not, we need index-pack to do it for
-		 * us.
-		 */
-		if (!(do_keep && pack_lockfiles) && args->from_promisor)
+
+		if (args->from_promisor)
+			/*
+			 * write_promisor_file() may be called afterwards but
+			 * we still need index-pack to know that this is a
+			 * promisor pack. For example, if transfer.fsckobjects
+			 * is true, index-pack needs to know that .gitmodules
+			 * is a promisor object (so that it won't complain if
+			 * it is missing).
+			 */
 			strvec_push(&cmd.args, "--promisor");
 	}
 	else {
@@ -892,7 +898,7 @@
 	    : transfer_fsck_objects >= 0
 	    ? transfer_fsck_objects
 	    : 0) {
-		if (args->from_promisor)
+		if (args->from_promisor || !only_packfile)
 			/*
 			 * We cannot use --strict in index-pack because it
 			 * checks both broken objects and links, but we only
@@ -960,12 +966,8 @@
 	struct fetch_negotiator negotiator_alloc;
 	struct fetch_negotiator *negotiator;
 
-	if (args->no_dependents) {
-		negotiator = NULL;
-	} else {
-		negotiator = &negotiator_alloc;
-		fetch_negotiator_init(r, negotiator);
-	}
+	negotiator = &negotiator_alloc;
+	fetch_negotiator_init(r, negotiator);
 
 	sort_ref_list(&ref, ref_compare_name);
 	QSORT(sought, nr_sought, cmp_ref_by_name);
@@ -1053,15 +1055,11 @@
 	if (!server_supports_hash(the_hash_algo->name, NULL))
 		die(_("Server does not support this repository's object format"));
 
-	if (!args->no_dependents) {
-		mark_complete_and_common_ref(negotiator, args, &ref);
-		filter_refs(args, &ref, sought, nr_sought);
-		if (everything_local(args, &ref)) {
-			packet_flush(fd[1]);
-			goto all_done;
-		}
-	} else {
-		filter_refs(args, &ref, sought, nr_sought);
+	mark_complete_and_common_ref(negotiator, args, &ref);
+	filter_refs(args, &ref, sought, nr_sought);
+	if (everything_local(args, &ref)) {
+		packet_flush(fd[1]);
+		goto all_done;
 	}
 	if (find_common(negotiator, args, fd, &oid, ref) < 0)
 		if (!args->keep_pack)
@@ -1110,7 +1108,7 @@
 		packet_buf_write(req_buf, "deepen-relative\n");
 }
 
-static void add_wants(int no_dependents, const struct ref *wants, struct strbuf *req_buf)
+static void add_wants(const struct ref *wants, struct strbuf *req_buf)
 {
 	int use_ref_in_want = server_supports_feature("fetch", "ref-in-want", 0);
 
@@ -1127,12 +1125,8 @@
 		 * We use lookup_object here because we are only
 		 * interested in the case we *know* the object is
 		 * reachable and we have already scanned it.
-		 *
-		 * Do this only if args->no_dependents is false (if it is true,
-		 * we cannot trust the object flags).
 		 */
-		if (!no_dependents &&
-		    ((o = lookup_object(the_repository, remote)) != NULL) &&
+		if (((o = lookup_object(the_repository, remote)) != NULL) &&
 		    (o->flags & COMPLETE)) {
 			continue;
 		}
@@ -1266,19 +1260,14 @@
 	}
 
 	/* add wants */
-	add_wants(args->no_dependents, wants, &req_buf);
+	add_wants(wants, &req_buf);
 
-	if (args->no_dependents) {
-		packet_buf_write(&req_buf, "done");
-		ret = 1;
-	} else {
-		/* Add all of the common commits we've found in previous rounds */
-		add_common(&req_buf, common);
+	/* Add all of the common commits we've found in previous rounds */
+	add_common(&req_buf, common);
 
-		/* Add initial haves */
-		ret = add_haves(negotiator, seen_ack, &req_buf,
-				haves_to_send, in_vain);
-	}
+	/* Add initial haves */
+	ret = add_haves(negotiator, seen_ack, &req_buf,
+			haves_to_send, in_vain);
 
 	/* Send request */
 	packet_buf_flush(&req_buf);
@@ -1538,12 +1527,8 @@
 	struct string_list packfile_uris = STRING_LIST_INIT_DUP;
 	int i;
 
-	if (args->no_dependents) {
-		negotiator = NULL;
-	} else {
-		negotiator = &negotiator_alloc;
-		fetch_negotiator_init(r, negotiator);
-	}
+	negotiator = &negotiator_alloc;
+	fetch_negotiator_init(r, negotiator);
 
 	packet_reader_init(&reader, fd[0], NULL, 0,
 			   PACKET_READ_CHOMP_NEWLINE |
@@ -1567,21 +1552,16 @@
 				args->deepen = 1;
 
 			/* Filter 'ref' by 'sought' and those that aren't local */
-			if (!args->no_dependents) {
-				mark_complete_and_common_ref(negotiator, args, &ref);
-				filter_refs(args, &ref, sought, nr_sought);
-				if (everything_local(args, &ref))
-					state = FETCH_DONE;
-				else
-					state = FETCH_SEND_REQUEST;
-
-				mark_tips(negotiator, args->negotiation_tips);
-				for_each_cached_alternate(negotiator,
-							  insert_one_alternate_object);
-			} else {
-				filter_refs(args, &ref, sought, nr_sought);
+			mark_complete_and_common_ref(negotiator, args, &ref);
+			filter_refs(args, &ref, sought, nr_sought);
+			if (everything_local(args, &ref))
+				state = FETCH_DONE;
+			else
 				state = FETCH_SEND_REQUEST;
-			}
+
+			mark_tips(negotiator, args->negotiation_tips);
+			for_each_cached_alternate(negotiator,
+						  insert_one_alternate_object);
 			break;
 		case FETCH_SEND_REQUEST:
 			if (!negotiation_started) {
@@ -1902,20 +1882,6 @@
 	if (nr_sought)
 		nr_sought = remove_duplicates_in_refs(sought, nr_sought);
 
-	if (args->no_dependents && !args->filter_options.choice) {
-		/*
-		 * The protocol does not support requesting that only the
-		 * wanted objects be sent, so approximate this by setting a
-		 * "blob:none" filter if no filter is already set. This works
-		 * for all object types: note that wanted blobs will still be
-		 * sent because they are directly specified as a "want".
-		 *
-		 * NEEDSWORK: Add an option in the protocol to request that
-		 * only the wanted objects be sent, and implement it.
-		 */
-		parse_list_objects_filter(&args->filter_options, "blob:none");
-	}
-
 	if (version != protocol_v2 && !ref) {
 		packet_flush(fd[1]);
 		die(_("no matching remote head"));
diff --git a/fetch-pack.h b/fetch-pack.h
index 85d1e39..736a3da 100644
--- a/fetch-pack.h
+++ b/fetch-pack.h
@@ -40,21 +40,15 @@
 	unsigned cloning:1;
 	unsigned update_shallow:1;
 	unsigned deepen:1;
-	unsigned from_promisor:1;
 
 	/*
-	 * Attempt to fetch only the wanted objects, and not any objects
-	 * referred to by them. Due to protocol limitations, extraneous
-	 * objects may still be included. (When fetching non-blob
-	 * objects, only blobs are excluded; when fetching a blob, the
-	 * blob itself will still be sent. The client does not need to
-	 * know whether a wanted object is a blob or not.)
-	 *
-	 * If 1, fetch_pack() will also not modify any object flags.
-	 * This allows fetch_pack() to safely be called by any function,
-	 * regardless of which object flags it uses (if any).
+	 * Indicate that the remote of this request is a promisor remote. The
+	 * pack received does not need all referred-to objects to be present in
+	 * the local object store, and fetch-pack will store the pack received
+	 * together with a ".promisor" file indicating that the aforementioned
+	 * pack is a promisor pack.
 	 */
-	unsigned no_dependents:1;
+	unsigned from_promisor:1;
 
 	/*
 	 * Because fetch_pack() overwrites the shallow file upon a
diff --git a/git-bisect.sh b/git-bisect.sh
index 3ec7558..2f60fef 100755
--- a/git-bisect.sh
+++ b/git-bisect.sh
@@ -4,7 +4,7 @@
 LONG_USAGE='git bisect help
 	print this long help message.
 git bisect start [--term-{new,bad}=<term> --term-{old,good}=<term>]
-		 [--no-checkout] [<bad> [<good>...]] [--] [<pathspec>...]
+		 [--no-checkout] [--first-parent] [<bad> [<good>...]] [--] [<pathspec>...]
 	reset bisect state and start bisection.
 git bisect (bad|new) [<rev>]
 	mark <rev> a known-bad revision/
diff --git a/git-cvsexportcommit.perl b/git-cvsexportcommit.perl
index 0ae8bce..289d4bc 100755
--- a/git-cvsexportcommit.perl
+++ b/git-cvsexportcommit.perl
@@ -30,7 +30,7 @@
 	# Remember where GIT_DIR is before changing to CVS checkout
 	unless ($ENV{GIT_DIR}) {
 		# No GIT_DIR set. Figure it out for ourselves
-		my $gd =`git-rev-parse --git-dir`;
+		my $gd =`git rev-parse --git-dir`;
 		chomp($gd);
 		$ENV{GIT_DIR} = $gd;
 	}
@@ -66,7 +66,7 @@
 # resolve target commit
 my $commit;
 $commit = pop @ARGV;
-$commit = safe_pipe_capture('git-rev-parse', '--verify', "$commit^0");
+$commit = safe_pipe_capture('git', 'rev-parse', '--verify', "$commit^0");
 chomp $commit;
 if ($?) {
     die "The commit reference $commit did not resolve!";
@@ -76,7 +76,7 @@
 my $parent;
 if (@ARGV) {
     $parent = pop @ARGV;
-    $parent =  safe_pipe_capture('git-rev-parse', '--verify', "$parent^0");
+    $parent =  safe_pipe_capture('git', 'rev-parse', '--verify', "$parent^0");
     chomp $parent;
     if ($?) {
 	die "The parent reference did not resolve!";
@@ -84,7 +84,7 @@
 }
 
 # find parents from the commit itself
-my @commit  = safe_pipe_capture('git-cat-file', 'commit', $commit);
+my @commit  = safe_pipe_capture('git', 'cat-file', 'commit', $commit);
 my @parents;
 my $committer;
 my $author;
@@ -162,9 +162,9 @@
 close MSG;
 
 if ($parent eq $noparent) {
-    `git-diff-tree --binary -p --root $commit >.cvsexportcommit.diff`;# || die "Cannot diff";
+    `git diff-tree --binary -p --root $commit >.cvsexportcommit.diff`;# || die "Cannot diff";
 } else {
-    `git-diff-tree --binary -p $parent $commit >.cvsexportcommit.diff`;# || die "Cannot diff";
+    `git diff-tree --binary -p $parent $commit >.cvsexportcommit.diff`;# || die "Cannot diff";
 }
 
 ## apply non-binary changes
@@ -178,7 +178,7 @@
 print "Checking if patch will apply\n";
 
 my @stat;
-open APPLY, "GIT_INDEX_FILE=$tmpdir/index git-apply $context --summary --numstat<.cvsexportcommit.diff|" || die "cannot patch";
+open APPLY, "GIT_INDEX_FILE=$tmpdir/index git apply $context --summary --numstat<.cvsexportcommit.diff|" || die "cannot patch";
 @stat=<APPLY>;
 close APPLY || die "Cannot patch";
 my (@bfiles,@files,@afiles,@dfiles);
@@ -333,7 +333,7 @@
 if ($opt_W) {
     system("git checkout -q $commit^0") && die "cannot patch";
 } else {
-    `GIT_INDEX_FILE=$tmpdir/index git-apply $context --summary --numstat --apply <.cvsexportcommit.diff` || die "cannot patch";
+    `GIT_INDEX_FILE=$tmpdir/index git apply $context --summary --numstat --apply <.cvsexportcommit.diff` || die "cannot patch";
 }
 
 print "Patch applied successfully. Adding new files and directories to CVS\n";
diff --git a/git.c b/git.c
index 8bd1d75..01c456e 100644
--- a/git.c
+++ b/git.c
@@ -479,6 +479,7 @@
 	{ "bisect--helper", cmd_bisect__helper, RUN_SETUP },
 	{ "blame", cmd_blame, RUN_SETUP },
 	{ "branch", cmd_branch, RUN_SETUP | DELAY_PAGER_CONFIG },
+	{ "bugreport", cmd_bugreport, RUN_SETUP_GENTLY },
 	{ "bundle", cmd_bundle, RUN_SETUP_GENTLY | NO_PARSEOPT },
 	{ "cat-file", cmd_cat_file, RUN_SETUP },
 	{ "check-attr", cmd_check_attr, RUN_SETUP },
@@ -499,6 +500,9 @@
 	{ "config", cmd_config, RUN_SETUP_GENTLY | DELAY_PAGER_CONFIG },
 	{ "count-objects", cmd_count_objects, RUN_SETUP },
 	{ "credential", cmd_credential, RUN_SETUP_GENTLY | NO_PARSEOPT },
+	{ "credential-cache", cmd_credential_cache },
+	{ "credential-cache--daemon", cmd_credential_cache_daemon },
+	{ "credential-store", cmd_credential_store },
 	{ "describe", cmd_describe, RUN_SETUP },
 	{ "diff", cmd_diff, NO_PARSEOPT },
 	{ "diff-files", cmd_diff_files, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT },
@@ -507,6 +511,7 @@
 	{ "difftool", cmd_difftool, RUN_SETUP_GENTLY },
 	{ "env--helper", cmd_env__helper },
 	{ "fast-export", cmd_fast_export, RUN_SETUP },
+	{ "fast-import", cmd_fast_import, RUN_SETUP | NO_PARSEOPT },
 	{ "fetch", cmd_fetch, RUN_SETUP },
 	{ "fetch-pack", cmd_fetch_pack, RUN_SETUP | NO_PARSEOPT },
 	{ "fmt-merge-msg", cmd_fmt_merge_msg, RUN_SETUP },
diff --git a/ident.c b/ident.c
index e666ee4..6aba4b5 100644
--- a/ident.c
+++ b/ident.c
@@ -345,27 +345,45 @@
 	return 0;
 }
 
-static const char *env_hint =
-N_("\n"
-   "*** Please tell me who you are.\n"
-   "\n"
-   "Run\n"
-   "\n"
-   "  git config --global user.email \"you@example.com\"\n"
-   "  git config --global user.name \"Your Name\"\n"
-   "\n"
-   "to set your account\'s default identity.\n"
-   "Omit --global to set the identity only in this repository.\n"
-   "\n");
+
+static void ident_env_hint(enum want_ident whose_ident)
+{
+	switch (whose_ident) {
+	case WANT_AUTHOR_IDENT:
+		fputs(_("Author identity unknown\n"), stderr);
+		break;
+	case WANT_COMMITTER_IDENT:
+		fputs(_("Committer identity unknown\n"), stderr);
+		break;
+	default:
+		break;
+	}
+
+	fputs(_("\n"
+		"*** Please tell me who you are.\n"
+		"\n"
+		"Run\n"
+		"\n"
+		"  git config --global user.email \"you@example.com\"\n"
+		"  git config --global user.name \"Your Name\"\n"
+		"\n"
+		"to set your account\'s default identity.\n"
+		"Omit --global to set the identity only in this repository.\n"
+		"\n"), stderr);
+}
 
 const char *fmt_ident(const char *name, const char *email,
 		      enum want_ident whose_ident, const char *date_str, int flag)
 {
-	static struct strbuf ident = STRBUF_INIT;
+	static int index;
+	static struct strbuf ident_pool[2] = { STRBUF_INIT, STRBUF_INIT };
 	int strict = (flag & IDENT_STRICT);
 	int want_date = !(flag & IDENT_NO_DATE);
 	int want_name = !(flag & IDENT_NO_NAME);
 
+	struct strbuf *ident = &ident_pool[index];
+	index = (index + 1) % ARRAY_SIZE(ident_pool);
+
 	if (!email) {
 		if (whose_ident == WANT_AUTHOR_IDENT && git_author_email.len)
 			email = git_author_email.buf;
@@ -375,12 +393,12 @@
 	if (!email) {
 		if (strict && ident_use_config_only
 		    && !(ident_config_given & IDENT_MAIL_GIVEN)) {
-			fputs(_(env_hint), stderr);
+			ident_env_hint(whose_ident);
 			die(_("no email was given and auto-detection is disabled"));
 		}
 		email = ident_default_email();
 		if (strict && default_email_is_bogus) {
-			fputs(_(env_hint), stderr);
+			ident_env_hint(whose_ident);
 			die(_("unable to auto-detect email address (got '%s')"), email);
 		}
 	}
@@ -397,13 +415,13 @@
 		if (!name) {
 			if (strict && ident_use_config_only
 			    && !(ident_config_given & IDENT_NAME_GIVEN)) {
-				fputs(_(env_hint), stderr);
+				ident_env_hint(whose_ident);
 				die(_("no name was given and auto-detection is disabled"));
 			}
 			name = ident_default_name();
 			using_default = 1;
 			if (strict && default_name_is_bogus) {
-				fputs(_(env_hint), stderr);
+				ident_env_hint(whose_ident);
 				die(_("unable to auto-detect name (got '%s')"), name);
 			}
 		}
@@ -411,7 +429,7 @@
 			struct passwd *pw;
 			if (strict) {
 				if (using_default)
-					fputs(_(env_hint), stderr);
+					ident_env_hint(whose_ident);
 				die(_("empty ident name (for <%s>) not allowed"), email);
 			}
 			pw = xgetpwuid_self(NULL);
@@ -421,25 +439,25 @@
 			die(_("name consists only of disallowed characters: %s"), name);
 	}
 
-	strbuf_reset(&ident);
+	strbuf_reset(ident);
 	if (want_name) {
-		strbuf_addstr_without_crud(&ident, name);
-		strbuf_addstr(&ident, " <");
+		strbuf_addstr_without_crud(ident, name);
+		strbuf_addstr(ident, " <");
 	}
-	strbuf_addstr_without_crud(&ident, email);
+	strbuf_addstr_without_crud(ident, email);
 	if (want_name)
-			strbuf_addch(&ident, '>');
+		strbuf_addch(ident, '>');
 	if (want_date) {
-		strbuf_addch(&ident, ' ');
+		strbuf_addch(ident, ' ');
 		if (date_str && date_str[0]) {
-			if (parse_date(date_str, &ident) < 0)
+			if (parse_date(date_str, ident) < 0)
 				die(_("invalid date format: %s"), date_str);
 		}
 		else
-			strbuf_addstr(&ident, ident_default_date());
+			strbuf_addstr(ident, ident_default_date());
 	}
 
-	return ident.buf;
+	return ident->buf;
 }
 
 const char *fmt_name(enum want_ident whose_ident)
diff --git a/negotiator/noop.c b/negotiator/noop.c
new file mode 100644
index 0000000..60569b8
--- /dev/null
+++ b/negotiator/noop.c
@@ -0,0 +1,44 @@
+#include "cache.h"
+#include "noop.h"
+#include "../commit.h"
+#include "../fetch-negotiator.h"
+
+static void known_common(struct fetch_negotiator *n, struct commit *c)
+{
+	/* do nothing */
+}
+
+static void add_tip(struct fetch_negotiator *n, struct commit *c)
+{
+	/* do nothing */
+}
+
+static const struct object_id *next(struct fetch_negotiator *n)
+{
+	return NULL;
+}
+
+static int ack(struct fetch_negotiator *n, struct commit *c)
+{
+	/*
+	 * This negotiator does not emit any commits, so there is no commit to
+	 * be acknowledged. If there is any ack, there is a bug.
+	 */
+	BUG("ack with noop negotiator, which does not emit any commits");
+	return 0;
+}
+
+static void release(struct fetch_negotiator *n)
+{
+	/* nothing to release */
+}
+
+void noop_negotiator_init(struct fetch_negotiator *negotiator)
+{
+	negotiator->known_common = known_common;
+	negotiator->add_tip = add_tip;
+	negotiator->next = next;
+	negotiator->ack = ack;
+	negotiator->release = release;
+	negotiator->data = NULL;
+}
diff --git a/negotiator/noop.h b/negotiator/noop.h
new file mode 100644
index 0000000..2b4ec5d
--- /dev/null
+++ b/negotiator/noop.h
@@ -0,0 +1,8 @@
+#ifndef NEGOTIATOR_NOOP_H
+#define NEGOTIATOR_NOOP_H
+
+struct fetch_negotiator;
+
+void noop_negotiator_init(struct fetch_negotiator *negotiator);
+
+#endif
diff --git a/path.c b/path.c
index 8b2c753..7b385e5 100644
--- a/path.c
+++ b/path.c
@@ -1528,8 +1528,6 @@
 	return NULL;
 }
 
-REPO_GIT_PATH_FUNC(cherry_pick_head, "CHERRY_PICK_HEAD")
-REPO_GIT_PATH_FUNC(revert_head, "REVERT_HEAD")
 REPO_GIT_PATH_FUNC(squash_msg, "SQUASH_MSG")
 REPO_GIT_PATH_FUNC(merge_msg, "MERGE_MSG")
 REPO_GIT_PATH_FUNC(merge_rr, "MERGE_RR")
diff --git a/path.h b/path.h
index 1f1bf8f..e7e77da 100644
--- a/path.h
+++ b/path.h
@@ -170,8 +170,6 @@
 	}
 
 struct path_cache {
-	const char *cherry_pick_head;
-	const char *revert_head;
 	const char *squash_msg;
 	const char *merge_msg;
 	const char *merge_rr;
@@ -182,10 +180,11 @@
 	const char *shallow;
 };
 
-#define PATH_CACHE_INIT { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL }
+#define PATH_CACHE_INIT                                        \
+	{                                                      \
+		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL \
+	}
 
-const char *git_path_cherry_pick_head(struct repository *r);
-const char *git_path_revert_head(struct repository *r);
 const char *git_path_squash_msg(struct repository *r);
 const char *git_path_merge_msg(struct repository *r);
 const char *git_path_merge_rr(struct repository *r);
diff --git a/promisor-remote.c b/promisor-remote.c
index baaea12..6530e26 100644
--- a/promisor-remote.c
+++ b/promisor-remote.c
@@ -3,6 +3,7 @@
 #include "promisor-remote.h"
 #include "config.h"
 #include "transport.h"
+#include "strvec.h"
 
 static char *repository_format_partial_clone;
 static const char *core_partial_clone_filter_default;
@@ -12,39 +13,34 @@
 	repository_format_partial_clone = xstrdup_or_null(partial_clone);
 }
 
-static int fetch_refs(const char *remote_name, struct ref *ref)
-{
-	struct remote *remote;
-	struct transport *transport;
-	int res;
-
-	remote = remote_get(remote_name);
-	if (!remote->url[0])
-		die(_("Remote with no URL"));
-	transport = transport_get(remote, remote->url[0]);
-
-	transport_set_option(transport, TRANS_OPT_FROM_PROMISOR, "1");
-	transport_set_option(transport, TRANS_OPT_NO_DEPENDENTS, "1");
-	res = transport_fetch_refs(transport, ref);
-
-	return res;
-}
-
 static int fetch_objects(const char *remote_name,
 			 const struct object_id *oids,
 			 int oid_nr)
 {
-	struct ref *ref = NULL;
+	struct child_process child = CHILD_PROCESS_INIT;
 	int i;
+	FILE *child_in;
+
+	child.git_cmd = 1;
+	child.in = -1;
+	strvec_pushl(&child.args, "-c", "fetch.negotiationAlgorithm=noop",
+		     "fetch", remote_name, "--no-tags",
+		     "--no-write-fetch-head", "--recurse-submodules=no",
+		     "--filter=blob:none", "--stdin", NULL);
+	if (start_command(&child))
+		die(_("promisor-remote: unable to fork off fetch subprocess"));
+	child_in = xfdopen(child.in, "w");
 
 	for (i = 0; i < oid_nr; i++) {
-		struct ref *new_ref = alloc_ref(oid_to_hex(&oids[i]));
-		oidcpy(&new_ref->old_oid, &oids[i]);
-		new_ref->exact_oid = 1;
-		new_ref->next = ref;
-		ref = new_ref;
+		if (fputs(oid_to_hex(&oids[i]), child_in) < 0)
+			die_errno(_("promisor-remote: could not write to fetch subprocess"));
+		if (fputc('\n', child_in) < 0)
+			die_errno(_("promisor-remote: could not write to fetch subprocess"));
 	}
-	return fetch_refs(remote_name, ref);
+
+	if (fclose(child_in) < 0)
+		die_errno(_("promisor-remote: could not close stdin to fetch subprocess"));
+	return finish_command(&child) ? -1 : 0;
 }
 
 static struct promisor_remote *promisors;
diff --git a/ref-filter.c b/ref-filter.c
index ba85869..8ba0e31 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -345,9 +345,11 @@
 		atom->u.contents.option = C_SIG;
 	else if (!strcmp(arg, "subject"))
 		atom->u.contents.option = C_SUB;
-	else if (skip_prefix(arg, "trailers", &arg)) {
-		skip_prefix(arg, ":", &arg);
-		if (trailers_atom_parser(format, atom, *arg ? arg : NULL, err))
+	else if (!strcmp(arg, "trailers")) {
+		if (trailers_atom_parser(format, atom, NULL, err))
+			return -1;
+	} else if (skip_prefix(arg, "trailers:", &arg)) {
+		if (trailers_atom_parser(format, atom, arg, err))
 			return -1;
 	} else if (skip_prefix(arg, "lines=", &arg)) {
 		atom->u.contents.option = C_LINES;
diff --git a/refs.c b/refs.c
index 3ee3afa..156fdcd 100644
--- a/refs.c
+++ b/refs.c
@@ -313,7 +313,7 @@
 	return read_ref_full(refname, RESOLVE_REF_READING, oid, NULL);
 }
 
-static int refs_ref_exists(struct ref_store *refs, const char *refname)
+int refs_ref_exists(struct ref_store *refs, const char *refname)
 {
 	return !!refs_resolve_ref_unsafe(refs, refname, RESOLVE_REF_READING, NULL, NULL);
 }
@@ -1950,24 +1950,17 @@
 	return 0;
 }
 
-static const char hook_not_found;
-static const char *hook;
-
 static int run_transaction_hook(struct ref_transaction *transaction,
 				const char *state)
 {
 	struct child_process proc = CHILD_PROCESS_INIT;
 	struct strbuf buf = STRBUF_INIT;
+	const char *hook;
 	int ret = 0, i;
 
-	if (hook == &hook_not_found)
-		return ret;
+	hook = find_hook("reference-transaction");
 	if (!hook)
-		hook = xstrdup_or_null(find_hook("reference-transaction"));
-	if (!hook) {
-		hook = &hook_not_found;
 		return ret;
-	}
 
 	strvec_pushl(&proc.args, hook, state, NULL);
 	proc.in = -1;
diff --git a/refs.h b/refs.h
index 29e2812..04bd250 100644
--- a/refs.h
+++ b/refs.h
@@ -105,6 +105,8 @@
 				  const struct string_list *skip,
 				  struct strbuf *err);
 
+int refs_ref_exists(struct ref_store *refs, const char *refname);
+
 int ref_exists(const char *refname);
 
 int should_autocreate_reflog(const char *refname);
diff --git a/refspec.h b/refspec.h
index 23e1555..8d654e3 100644
--- a/refspec.h
+++ b/refspec.h
@@ -4,6 +4,19 @@
 #define TAG_REFSPEC "refs/tags/*:refs/tags/*"
 extern const struct refspec_item *tag_refspec;
 
+/**
+ * A struct refspec_item holds the parsed interpretation of a refspec.  If it will
+ * force updates (starts with a '+'), force is true.  If it is a pattern
+ * (sides end with '*') pattern is true.  src and dest are the two sides
+ * (including '*' characters if present); if there is only one side, it is src,
+ * and dst is NULL; if sides exist but are empty (i.e., the refspec either
+ * starts or ends with ':'), the corresponding side is "".
+ *
+ * remote_find_tracking(), given a remote and a struct refspec_item with either src
+ * or dst filled out, will fill out the other such that the result is in the
+ * "fetch" specification for the remote (note that this evaluates patterns and
+ * returns a single result).
+ */
 struct refspec_item {
 	unsigned force : 1;
 	unsigned pattern : 1;
@@ -21,20 +34,8 @@
 #define REFSPEC_INIT_PUSH { .fetch = REFSPEC_PUSH }
 
 /**
- * A struct refspec holds the parsed interpretation of a refspec.  If it will
- * force updates (starts with a '+'), force is true.  If it is a pattern
- * (sides end with '*') pattern is true.  src and dest are the two sides
- * (including '*' characters if present); if there is only one side, it is src,
- * and dst is NULL; if sides exist but are empty (i.e., the refspec either
- * starts or ends with ':'), the corresponding side is "".
- *
- * An array of strings can be parsed into an array of struct refspecs using
+ * An array of strings can be parsed into a struct refspec using
  * parse_fetch_refspec() or parse_push_refspec().
- *
- * remote_find_tracking(), given a remote and a struct refspec with either src
- * or dst filled out, will fill out the other such that the result is in the
- * "fetch" specification for the remote (note that this evaluates patterns and
- * returns a single result).
  */
 struct refspec {
 	struct refspec_item *items;
diff --git a/remote-curl.c b/remote-curl.c
index 62b3a45..32cc4a0 100644
--- a/remote-curl.c
+++ b/remote-curl.c
@@ -39,8 +39,10 @@
 		/* One of the SEND_PACK_PUSH_CERT_* constants. */
 		push_cert : 2,
 		deepen_relative : 1,
+
+		/* see documentation of corresponding flag in fetch-pack.h */
 		from_promisor : 1,
-		no_dependents : 1,
+
 		atomic : 1,
 		object_format : 1;
 	const struct git_hash_algo *hash_algo;
@@ -190,9 +192,6 @@
 	} else if (!strcmp(name, "from-promisor")) {
 		options.from_promisor = 1;
 		return 0;
-	} else if (!strcmp(name, "no-dependents")) {
-		options.no_dependents = 1;
-		return 0;
 	} else if (!strcmp(name, "filter")) {
 		options.filter = xstrdup(value);
 		return 0;
@@ -1175,8 +1174,6 @@
 		strvec_push(&args, "--deepen-relative");
 	if (options.from_promisor)
 		strvec_push(&args, "--from-promisor");
-	if (options.no_dependents)
-		strvec_push(&args, "--no-dependents");
 	if (options.filter)
 		strvec_pushf(&args, "--filter=%s", options.filter);
 	strvec_push(&args, url.buf);
diff --git a/remote-testsvn.c b/remote-testsvn.c
deleted file mode 100644
index 636b2b6..0000000
--- a/remote-testsvn.c
+++ /dev/null
@@ -1,341 +0,0 @@
-#include "cache.h"
-#include "refs.h"
-#include "remote.h"
-#include "object-store.h"
-#include "strbuf.h"
-#include "url.h"
-#include "exec-cmd.h"
-#include "run-command.h"
-#include "vcs-svn/svndump.h"
-#include "notes.h"
-#include "strvec.h"
-
-static const char *url;
-static int dump_from_file;
-static const char *private_ref;
-static char *remote_ref;
-static const char *marksfilename, *notes_ref;
-struct rev_note { unsigned int rev_nr; };
-
-static int cmd_capabilities(const char *line);
-static int cmd_import(const char *line);
-static int cmd_list(const char *line);
-
-typedef int (*input_command_handler)(const char *);
-struct input_command_entry {
-	const char *name;
-	input_command_handler fn;
-	unsigned char batchable;	/* whether the command starts or is part of a batch */
-};
-
-static const struct input_command_entry input_command_list[] = {
-	{ "capabilities", cmd_capabilities, 0 },
-	{ "import", cmd_import, 1 },
-	{ "list", cmd_list, 0 },
-	{ NULL, NULL }
-};
-
-static int cmd_capabilities(const char *line)
-{
-	printf("import\n");
-	printf("bidi-import\n");
-	printf("refspec %s:%s\n\n", remote_ref, private_ref);
-	fflush(stdout);
-	return 0;
-}
-
-static void terminate_batch(void)
-{
-	/* terminate a current batch's fast-import stream */
-	printf("done\n");
-	fflush(stdout);
-}
-
-/* NOTE: 'ref' refers to a git reference, while 'rev' refers to a svn revision. */
-static char *read_ref_note(const struct object_id *oid)
-{
-	const struct object_id *note_oid;
-	char *msg = NULL;
-	unsigned long msglen;
-	enum object_type type;
-
-	init_notes(NULL, notes_ref, NULL, 0);
-	if (!(note_oid = get_note(NULL, oid)))
-		return NULL;	/* note tree not found */
-	if (!(msg = read_object_file(note_oid, &type, &msglen)))
-		error("Empty notes tree. %s", notes_ref);
-	else if (!msglen || type != OBJ_BLOB) {
-		error("Note contains unusable content. "
-			"Is something else using this notes tree? %s", notes_ref);
-		FREE_AND_NULL(msg);
-	}
-	free_notes(NULL);
-	return msg;
-}
-
-static int parse_rev_note(const char *msg, struct rev_note *res)
-{
-	const char *key, *value, *end;
-	size_t len;
-
-	while (*msg) {
-		end = strchrnul(msg, '\n');
-		len = end - msg;
-
-		key = "Revision-number: ";
-		if (starts_with(msg, key)) {
-			long i;
-			char *end;
-			value = msg + strlen(key);
-			i = strtol(value, &end, 0);
-			if (end == value || i < 0 || i > UINT32_MAX)
-				return -1;
-			res->rev_nr = i;
-			return 0;
-		}
-		msg += len + 1;
-	}
-	/* didn't find it */
-	return -1;
-}
-
-static int note2mark_cb(const struct object_id *object_oid,
-		const struct object_id *note_oid, char *note_path,
-		void *cb_data)
-{
-	FILE *file = (FILE *)cb_data;
-	char *msg;
-	unsigned long msglen;
-	enum object_type type;
-	struct rev_note note;
-
-	if (!(msg = read_object_file(note_oid, &type, &msglen)) ||
-			!msglen || type != OBJ_BLOB) {
-		free(msg);
-		return 1;
-	}
-	if (parse_rev_note(msg, &note))
-		return 2;
-	if (fprintf(file, ":%d %s\n", note.rev_nr, oid_to_hex(object_oid)) < 1)
-		return 3;
-	return 0;
-}
-
-static void regenerate_marks(void)
-{
-	int ret;
-	FILE *marksfile = xfopen(marksfilename, "w+");
-
-	ret = for_each_note(NULL, 0, note2mark_cb, marksfile);
-	if (ret)
-		die("Regeneration of marks failed, returned %d.", ret);
-	fclose(marksfile);
-}
-
-static void check_or_regenerate_marks(int latestrev)
-{
-	FILE *marksfile;
-	struct strbuf sb = STRBUF_INIT;
-	struct strbuf line = STRBUF_INIT;
-	int found = 0;
-
-	if (latestrev < 1)
-		return;
-
-	init_notes(NULL, notes_ref, NULL, 0);
-	marksfile = fopen(marksfilename, "r");
-	if (!marksfile) {
-		regenerate_marks();
-		marksfile = xfopen(marksfilename, "r");
-		fclose(marksfile);
-	} else {
-		strbuf_addf(&sb, ":%d ", latestrev);
-		while (strbuf_getline_lf(&line, marksfile) != EOF) {
-			if (starts_with(line.buf, sb.buf)) {
-				found++;
-				break;
-			}
-		}
-		fclose(marksfile);
-		if (!found)
-			regenerate_marks();
-	}
-	free_notes(NULL);
-	strbuf_release(&sb);
-	strbuf_release(&line);
-}
-
-static int cmd_import(const char *line)
-{
-	int code;
-	int dumpin_fd;
-	char *note_msg;
-	struct object_id head_oid;
-	unsigned int startrev;
-	struct child_process svndump_proc = CHILD_PROCESS_INIT;
-	const char *command = "svnrdump";
-
-	if (read_ref(private_ref, &head_oid))
-		startrev = 0;
-	else {
-		note_msg = read_ref_note(&head_oid);
-		if(note_msg == NULL) {
-			warning("No note found for %s.", private_ref);
-			startrev = 0;
-		} else {
-			struct rev_note note = { 0 };
-			if (parse_rev_note(note_msg, &note))
-				die("Revision number couldn't be parsed from note.");
-			startrev = note.rev_nr + 1;
-			free(note_msg);
-		}
-	}
-	check_or_regenerate_marks(startrev - 1);
-
-	if (dump_from_file) {
-		dumpin_fd = open(url, O_RDONLY);
-		if(dumpin_fd < 0)
-			die_errno("Couldn't open svn dump file %s.", url);
-	} else {
-		svndump_proc.out = -1;
-		strvec_push(&svndump_proc.args, command);
-		strvec_push(&svndump_proc.args, "dump");
-		strvec_push(&svndump_proc.args, url);
-		strvec_pushf(&svndump_proc.args, "-r%u:HEAD", startrev);
-
-		code = start_command(&svndump_proc);
-		if (code)
-			die("Unable to start %s, code %d", command, code);
-		dumpin_fd = svndump_proc.out;
-	}
-	/* setup marks file import/export */
-	printf("feature import-marks-if-exists=%s\n"
-			"feature export-marks=%s\n", marksfilename, marksfilename);
-
-	svndump_init_fd(dumpin_fd, STDIN_FILENO);
-	svndump_read(url, private_ref, notes_ref);
-	svndump_deinit();
-	svndump_reset();
-
-	close(dumpin_fd);
-	if (!dump_from_file) {
-		code = finish_command(&svndump_proc);
-		if (code)
-			warning("%s, returned %d", command, code);
-	}
-
-	return 0;
-}
-
-static int cmd_list(const char *line)
-{
-	printf("? %s\n\n", remote_ref);
-	fflush(stdout);
-	return 0;
-}
-
-static int do_command(struct strbuf *line)
-{
-	const struct input_command_entry *p = input_command_list;
-	static struct string_list batchlines = STRING_LIST_INIT_DUP;
-	static const struct input_command_entry *batch_cmd;
-	/*
-	 * commands can be grouped together in a batch.
-	 * Batches are ended by \n. If no batch is active the program ends.
-	 * During a batch all lines are buffered and passed to the handler function
-	 * when the batch is terminated.
-	 */
-	if (line->len == 0) {
-		if (batch_cmd) {
-			struct string_list_item *item;
-			for_each_string_list_item(item, &batchlines)
-				batch_cmd->fn(item->string);
-			terminate_batch();
-			batch_cmd = NULL;
-			string_list_clear(&batchlines, 0);
-			return 0;	/* end of the batch, continue reading other commands. */
-		}
-		return 1;	/* end of command stream, quit */
-	}
-	if (batch_cmd) {
-		if (!starts_with(batch_cmd->name, line->buf))
-			die("Active %s batch interrupted by %s", batch_cmd->name, line->buf);
-		/* buffer batch lines */
-		string_list_append(&batchlines, line->buf);
-		return 0;
-	}
-
-	for (p = input_command_list; p->name; p++) {
-		if (starts_with(line->buf, p->name) && (strlen(p->name) == line->len ||
-				line->buf[strlen(p->name)] == ' ')) {
-			if (p->batchable) {
-				batch_cmd = p;
-				string_list_append(&batchlines, line->buf);
-				return 0;
-			}
-			return p->fn(line->buf);
-		}
-	}
-	die("Unknown command '%s'\n", line->buf);
-	return 0;
-}
-
-int cmd_main(int argc, const char **argv)
-{
-	struct strbuf buf = STRBUF_INIT, url_sb = STRBUF_INIT,
-			private_ref_sb = STRBUF_INIT, marksfilename_sb = STRBUF_INIT,
-			notes_ref_sb = STRBUF_INIT;
-	static struct remote *remote;
-	const char *url_in, *remote_ref_short;
-
-	setup_git_directory();
-	if (argc < 2 || argc > 3) {
-		usage("git-remote-svn <remote-name> [<url>]");
-		return 1;
-	}
-
-	remote_ref_short = git_default_branch_name();
-	remote_ref = xstrfmt("refs/heads/%s", remote_ref_short);
-
-	remote = remote_get(argv[1]);
-	url_in = (argc == 3) ? argv[2] : remote->url[0];
-
-	if (starts_with(url_in, "file://")) {
-		dump_from_file = 1;
-		url = url_decode(url_in + sizeof("file://")-1);
-	} else {
-		dump_from_file = 0;
-		end_url_with_slash(&url_sb, url_in);
-		url = url_sb.buf;
-	}
-
-	strbuf_addf(&private_ref_sb, "refs/svn/%s/%s",
-		    remote->name, remote_ref_short);
-	private_ref = private_ref_sb.buf;
-
-	strbuf_addf(&notes_ref_sb, "refs/notes/%s/revs", remote->name);
-	notes_ref = notes_ref_sb.buf;
-
-	strbuf_addf(&marksfilename_sb, "%s/info/fast-import/remote-svn/%s.marks",
-		get_git_dir(), remote->name);
-	marksfilename = marksfilename_sb.buf;
-
-	while (1) {
-		if (strbuf_getline_lf(&buf, stdin) == EOF) {
-			if (ferror(stdin))
-				die("Error reading command stream");
-			else
-				die("Unexpected end of command stream");
-		}
-		if (do_command(&buf))
-			break;
-		strbuf_reset(&buf);
-	}
-
-	strbuf_release(&buf);
-	strbuf_release(&url_sb);
-	strbuf_release(&private_ref_sb);
-	strbuf_release(&notes_ref_sb);
-	strbuf_release(&marksfilename_sb);
-	return 0;
-}
diff --git a/repo-settings.c b/repo-settings.c
index 0918408..aa61a35 100644
--- a/repo-settings.c
+++ b/repo-settings.c
@@ -39,6 +39,8 @@
 	if (!repo_config_get_string(r, "fetch.negotiationalgorithm", &strval)) {
 		if (!strcasecmp(strval, "skipping"))
 			r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_SKIPPING;
+		else if (!strcasecmp(strval, "noop"))
+			r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_NOOP;
 		else
 			r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_DEFAULT;
 	}
diff --git a/repository.h b/repository.h
index 3c1f7d5..628c834 100644
--- a/repository.h
+++ b/repository.h
@@ -23,6 +23,7 @@
 	FETCH_NEGOTIATION_NONE = 0,
 	FETCH_NEGOTIATION_DEFAULT = 1,
 	FETCH_NEGOTIATION_SKIPPING = 2,
+	FETCH_NEGOTIATION_NOOP = 3,
 };
 
 struct repo_settings {
diff --git a/revision.c b/revision.c
index 96630e3..08c2ad2 100644
--- a/revision.c
+++ b/revision.c
@@ -2017,7 +2017,7 @@
 	return ret;
 }
 
-int handle_revision_arg(const char *arg_, struct rev_info *revs, int flags, unsigned revarg_opt)
+static int handle_revision_arg_1(const char *arg_, struct rev_info *revs, int flags, unsigned revarg_opt)
 {
 	struct object_context oc;
 	char *mark;
@@ -2092,6 +2092,14 @@
 	return 0;
 }
 
+int handle_revision_arg(const char *arg, struct rev_info *revs, int flags, unsigned revarg_opt)
+{
+	int ret = handle_revision_arg_1(arg, revs, flags, revarg_opt);
+	if (!ret)
+		revs->rev_input_given = 1;
+	return ret;
+}
+
 static void read_pathspec_from_stdin(struct strbuf *sb,
 				     struct strvec *prune)
 {
@@ -2703,7 +2711,7 @@
  */
 int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct setup_revision_opt *opt)
 {
-	int i, flags, left, seen_dashdash, got_rev_arg = 0, revarg_opt;
+	int i, flags, left, seen_dashdash, revarg_opt;
 	struct strvec prune_data = STRVEC_INIT;
 	const char *submodule = NULL;
 	int seen_end_of_options = 0;
@@ -2792,8 +2800,6 @@
 			strvec_pushv(&prune_data, argv + i);
 			break;
 		}
-		else
-			got_rev_arg = 1;
 	}
 
 	if (prune_data.nr) {
@@ -2822,7 +2828,7 @@
 		opt->tweak(revs, opt);
 	if (revs->show_merge)
 		prepare_show_merge(revs);
-	if (revs->def && !revs->pending.nr && !revs->rev_input_given && !got_rev_arg) {
+	if (revs->def && !revs->pending.nr && !revs->rev_input_given) {
 		struct object_id oid;
 		struct object *object;
 		struct object_context oc;
diff --git a/sequencer.c b/sequencer.c
index 2425896..e8676e9 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -150,6 +150,8 @@
  * command-line.
  */
 static GIT_PATH_FUNC(rebase_path_gpg_sign_opt, "rebase-merge/gpg_sign_opt")
+static GIT_PATH_FUNC(rebase_path_cdate_is_adate, "rebase-merge/cdate_is_adate")
+static GIT_PATH_FUNC(rebase_path_ignore_date, "rebase-merge/ignore_date")
 static GIT_PATH_FUNC(rebase_path_orig_head, "rebase-merge/orig-head")
 static GIT_PATH_FUNC(rebase_path_verbose, "rebase-merge/verbose")
 static GIT_PATH_FUNC(rebase_path_quiet, "rebase-merge/quiet")
@@ -303,6 +305,8 @@
 		}
 	}
 
+	free(opts->committer_name);
+	free(opts->committer_email);
 	free(opts->gpg_sign);
 	free(opts->strategy);
 	for (i = 0; i < opts->xopts_nr; i++)
@@ -381,7 +385,8 @@
 		 * (typically rebase --interactive) wants to take care
 		 * of the commit itself so remove CHERRY_PICK_HEAD
 		 */
-		unlink(git_path_cherry_pick_head(r));
+		refs_delete_ref(get_main_ref_store(r), "", "CHERRY_PICK_HEAD",
+				NULL, 0);
 		return;
 	}
 
@@ -863,6 +868,22 @@
 	return NULL;
 }
 
+static const char *author_date_from_env_array(const struct strvec *env)
+{
+	int i;
+	const char *date;
+
+	for (i = 0; i < env->nr; i++)
+		if (skip_prefix(env->v[i],
+				"GIT_AUTHOR_DATE=", &date))
+			return date;
+	/*
+	 * If GIT_AUTHOR_DATE is missing we should have already errored out when
+	 * reading the script
+	 */
+	BUG("GIT_AUTHOR_DATE missing from author script");
+}
+
 static const char staged_changes_advice[] =
 N_("you have staged changes in your working tree\n"
 "If these changes are meant to be squashed into the previous commit, run:\n"
@@ -929,6 +950,14 @@
 			     gpg_opt, gpg_opt);
 	}
 
+	if (opts->committer_date_is_author_date)
+		strvec_pushf(&cmd.env_array, "GIT_COMMITTER_DATE=%s",
+			     opts->ignore_date ?
+			     "" :
+			     author_date_from_env_array(&cmd.env_array));
+	if (opts->ignore_date)
+		strvec_push(&cmd.env_array, "GIT_AUTHOR_DATE=");
+
 	strvec_push(&cmd.args, "commit");
 
 	if (!(flags & VERIFY_MSG))
@@ -1308,6 +1337,7 @@
 	struct strbuf err = STRBUF_INIT;
 	struct strbuf commit_msg = STRBUF_INIT;
 	char *amend_author = NULL;
+	const char *committer = NULL;
 	const char *hook_commit = NULL;
 	enum commit_msg_cleanup_mode cleanup;
 	int res = 0;
@@ -1399,10 +1429,57 @@
 		goto out;
 	}
 
-	reset_ident_date();
+	if (opts->committer_date_is_author_date) {
+		struct ident_split id;
+		struct strbuf date = STRBUF_INIT;
 
-	if (commit_tree_extended(msg->buf, msg->len, &tree, parents,
-				 oid, author, opts->gpg_sign, extra)) {
+		if (!opts->ignore_date) {
+			if (split_ident_line(&id, author, (int)strlen(author)) < 0) {
+				res = error(_("invalid author identity '%s'"),
+					    author);
+				goto out;
+			}
+			if (!id.date_begin) {
+				res = error(_(
+					"corrupt author: missing date information"));
+				goto out;
+			}
+			strbuf_addf(&date, "@%.*s %.*s",
+				    (int)(id.date_end - id.date_begin),
+				    id.date_begin,
+				    (int)(id.tz_end - id.tz_begin),
+				    id.tz_begin);
+		} else {
+			reset_ident_date();
+		}
+		committer = fmt_ident(opts->committer_name,
+				      opts->committer_email,
+				      WANT_COMMITTER_IDENT,
+				      opts->ignore_date ? NULL : date.buf,
+				      IDENT_STRICT);
+		strbuf_release(&date);
+	} else {
+		reset_ident_date();
+	}
+
+	if (opts->ignore_date) {
+		struct ident_split id;
+		char *name, *email;
+
+		if (split_ident_line(&id, author, strlen(author)) < 0) {
+			error(_("invalid author identity '%s'"), author);
+			goto out;
+		}
+		name = xmemdupz(id.name_begin, id.name_end - id.name_begin);
+		email = xmemdupz(id.mail_begin, id.mail_end - id.mail_begin);
+		author = fmt_ident(name, email, WANT_AUTHOR_IDENT, NULL,
+				   IDENT_STRICT);
+		free(name);
+		free(email);
+	}
+
+	if (commit_tree_extended(msg->buf, msg->len, &tree, parents, oid,
+				 author, committer, opts->gpg_sign, extra)) {
 		res = error(_("failed to write commit object"));
 		goto out;
 	}
@@ -1455,7 +1532,8 @@
 				    author, opts, flags, &oid);
 		strbuf_release(&sb);
 		if (!res) {
-			unlink(git_path_cherry_pick_head(r));
+			refs_delete_ref(get_main_ref_store(r), "",
+					"CHERRY_PICK_HEAD", NULL, 0);
 			unlink(git_path_merge_msg(r));
 			if (!is_rebase_i(opts))
 				print_commit_summary(r, NULL, &oid,
@@ -1966,7 +2044,8 @@
 		flags |= ALLOW_EMPTY;
 	} else if (allow == 2) {
 		drop_commit = 1;
-		unlink(git_path_cherry_pick_head(r));
+		refs_delete_ref(get_main_ref_store(r), "", "CHERRY_PICK_HEAD",
+				NULL, 0);
 		unlink(git_path_merge_msg(r));
 		fprintf(stderr,
 			_("dropping %s %s -- patch contents already upstream\n"),
@@ -2305,15 +2384,19 @@
 	struct replay_opts opts = REPLAY_OPTS_INIT;
 	int need_cleanup = 0;
 
-	if (file_exists(git_path_cherry_pick_head(r))) {
-		if (!unlink(git_path_cherry_pick_head(r)) && verbose)
+	if (refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD")) {
+		if (!refs_delete_ref(get_main_ref_store(r), "",
+				     "CHERRY_PICK_HEAD", NULL, 0) &&
+		    verbose)
 			warning(_("cancelling a cherry picking in progress"));
 		opts.action = REPLAY_PICK;
 		need_cleanup = 1;
 	}
 
-	if (file_exists(git_path_revert_head(r))) {
-		if (!unlink(git_path_revert_head(r)) && verbose)
+	if (refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD")) {
+		if (!refs_delete_ref(get_main_ref_store(r), "", "REVERT_HEAD",
+				     NULL, 0) &&
+		    verbose)
 			warning(_("cancelling a revert in progress"));
 		opts.action = REPLAY_REVERT;
 		need_cleanup = 1;
@@ -2528,6 +2611,16 @@
 			opts->signoff = 1;
 		}
 
+		if (file_exists(rebase_path_cdate_is_adate())) {
+			opts->allow_ff = 0;
+			opts->committer_date_is_author_date = 1;
+		}
+
+		if (file_exists(rebase_path_ignore_date())) {
+			opts->allow_ff = 0;
+			opts->ignore_date = 1;
+		}
+
 		if (file_exists(rebase_path_reschedule_failed_exec()))
 			opts->reschedule_failed_exec = 1;
 
@@ -2623,6 +2716,10 @@
 		write_file(rebase_path_drop_redundant_commits(), "%s", "");
 	if (opts->keep_redundant_commits)
 		write_file(rebase_path_keep_redundant_commits(), "%s", "");
+	if (opts->committer_date_is_author_date)
+		write_file(rebase_path_cdate_is_adate(), "%s", "");
+	if (opts->ignore_date)
+		write_file(rebase_path_ignore_date(), "%s", "");
 	if (opts->reschedule_failed_exec)
 		write_file(rebase_path_reschedule_failed_exec(), "%s", "");
 
@@ -2671,8 +2768,9 @@
 	enum replay_action action;
 	const char *in_progress_error = NULL;
 	const char *in_progress_advice = NULL;
-	unsigned int advise_skip = file_exists(git_path_revert_head(r)) ||
-				file_exists(git_path_cherry_pick_head(r));
+	unsigned int advise_skip =
+		refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD") ||
+		refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD");
 
 	if (!sequencer_get_last_command(r, &action)) {
 		switch (action) {
@@ -2771,8 +2869,8 @@
 {
 	struct object_id head_oid;
 
-	if (!file_exists(git_path_cherry_pick_head(r)) &&
-	    !file_exists(git_path_revert_head(r)))
+	if (!refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD") &&
+	    !refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD"))
 		return error(_("no cherry-pick or revert in progress"));
 	if (read_ref_full("HEAD", 0, &head_oid, NULL))
 		return error(_("cannot resolve HEAD"));
@@ -2866,7 +2964,7 @@
 	 */
 	switch (opts->action) {
 	case REPLAY_REVERT:
-		if (!file_exists(git_path_revert_head(r))) {
+		if (!refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD")) {
 			if (action != REPLAY_REVERT)
 				return error(_("no revert in progress"));
 			if (!rollback_is_safe())
@@ -2874,7 +2972,8 @@
 		}
 		break;
 	case REPLAY_PICK:
-		if (!file_exists(git_path_cherry_pick_head(r))) {
+		if (!refs_ref_exists(get_main_ref_store(r),
+				     "CHERRY_PICK_HEAD")) {
 			if (action != REPLAY_PICK)
 				return error(_("no cherry-pick in progress"));
 			if (!rollback_is_safe())
@@ -3543,6 +3642,14 @@
 			goto leave_merge;
 		}
 
+		if (opts->committer_date_is_author_date)
+			strvec_pushf(&cmd.env_array, "GIT_COMMITTER_DATE=%s",
+				     opts->ignore_date ?
+				     "" :
+				     author_date_from_env_array(&cmd.env_array));
+		if (opts->ignore_date)
+			strvec_push(&cmd.env_array, "GIT_AUTHOR_DATE=");
+
 		cmd.git_cmd = 1;
 		strvec_push(&cmd.args, "merge");
 		strvec_push(&cmd.args, "-s");
@@ -3569,7 +3676,8 @@
 				    oid_to_hex(&j->item->object.oid));
 
 		strbuf_release(&ref_name);
-		unlink(git_path_cherry_pick_head(r));
+		refs_delete_ref(get_main_ref_store(r), "", "CHERRY_PICK_HEAD",
+				NULL, 0);
 		rollback_lock_file(&lock);
 
 		rollback_lock_file(&lock);
@@ -3906,7 +4014,9 @@
 	prev_reflog_action = xstrdup(getenv(GIT_REFLOG_ACTION));
 	if (opts->allow_ff)
 		assert(!(opts->signoff || opts->no_commit ||
-				opts->record_origin || opts->edit));
+			 opts->record_origin || opts->edit ||
+			 opts->committer_date_is_author_date ||
+			 opts->ignore_date));
 	if (read_and_refresh_cache(r, opts))
 		return -1;
 
@@ -4201,8 +4311,8 @@
 {
 	const char *argv[] = { "commit", NULL };
 
-	if (!file_exists(git_path_cherry_pick_head(r)) &&
-	    !file_exists(git_path_revert_head(r)))
+	if (!refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD") &&
+	    !refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD"))
 		return error(_("no cherry-pick or revert in progress"));
 	return run_command_v_opt(argv, RUN_GIT_CMD);
 }
@@ -4318,9 +4428,10 @@
 	}
 
 	if (is_clean) {
-		const char *cherry_pick_head = git_path_cherry_pick_head(r);
-
-		if (file_exists(cherry_pick_head) && unlink(cherry_pick_head))
+		if (refs_ref_exists(get_main_ref_store(r),
+				    "CHERRY_PICK_HEAD") &&
+		    refs_delete_ref(get_main_ref_store(r), "",
+				    "CHERRY_PICK_HEAD", NULL, 0))
 			return error(_("could not remove CHERRY_PICK_HEAD"));
 		if (!final_fixup)
 			return 0;
@@ -4347,6 +4458,22 @@
 	return 0;
 }
 
+static int init_committer(struct replay_opts *opts)
+{
+	struct ident_split id;
+	const char *committer;
+
+	committer = git_committer_info(IDENT_STRICT);
+	if (split_ident_line(&id, committer, strlen(committer)) < 0)
+		return error(_("invalid committer '%s'"), committer);
+	opts->committer_name =
+		xmemdupz(id.name_begin, id.name_end - id.name_begin);
+	opts->committer_email =
+		xmemdupz(id.mail_begin, id.mail_end - id.mail_end);
+
+	return 0;
+}
+
 int sequencer_continue(struct repository *r, struct replay_opts *opts)
 {
 	struct todo_list todo_list = TODO_LIST_INIT;
@@ -4358,6 +4485,9 @@
 	if (read_populate_opts(opts))
 		return -1;
 	if (is_rebase_i(opts)) {
+		if (opts->committer_date_is_author_date && init_committer(opts))
+			return -1;
+
 		if ((res = read_populate_todo(r, &todo_list, opts)))
 			goto release_todo_list;
 
@@ -4379,8 +4509,9 @@
 
 	if (!is_rebase_i(opts)) {
 		/* Verify that the conflict has been resolved */
-		if (file_exists(git_path_cherry_pick_head(r)) ||
-		    file_exists(git_path_revert_head(r))) {
+		if (refs_ref_exists(get_main_ref_store(r),
+				    "CHERRY_PICK_HEAD") ||
+		    refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD")) {
 			res = continue_single_pick(r);
 			if (res)
 				goto release_todo_list;
@@ -5251,6 +5382,9 @@
 
 	res = -1;
 
+	if (opts->committer_date_is_author_date && init_committer(opts))
+		goto cleanup;
+
 	if (checkout_onto(r, opts, onto_name, &oid, orig_head))
 		goto cleanup;
 
@@ -5443,7 +5577,7 @@
 
 int sequencer_determine_whence(struct repository *r, enum commit_whence *whence)
 {
-	if (file_exists(git_path_cherry_pick_head(r))) {
+	if (refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD")) {
 		struct object_id cherry_pick_head, rebase_head;
 
 		if (file_exists(git_path_seq_dir()))
diff --git a/sequencer.h b/sequencer.h
index d31c41f..b2a501e 100644
--- a/sequencer.h
+++ b/sequencer.h
@@ -45,9 +45,13 @@
 	int verbose;
 	int quiet;
 	int reschedule_failed_exec;
+	int committer_date_is_author_date;
+	int ignore_date;
 
 	int mainline;
 
+	char *committer_name;
+	char *committer_email;
 	char *gpg_sign;
 	enum commit_msg_cleanup_mode default_msg_cleanup;
 	int explicit_cleanup;
diff --git a/submodule-config.c b/submodule-config.c
index e175dfb..c569e22 100644
--- a/submodule-config.c
+++ b/submodule-config.c
@@ -777,10 +777,14 @@
 {
 	struct fetch_config *config = cb;
 	if (!strcmp(var, "submodule.fetchjobs")) {
-		*(config->max_children) = parse_submodule_fetchjobs(var, value);
+		if (config->max_children)
+			*(config->max_children) =
+				parse_submodule_fetchjobs(var, value);
 		return 0;
 	} else if (!strcmp(var, "fetch.recursesubmodules")) {
-		*(config->recurse_submodules) = parse_fetch_recurse_submodules_arg(var, value);
+		if (config->recurse_submodules)
+			*(config->recurse_submodules) =
+				parse_fetch_recurse_submodules_arg(var, value);
 		return 0;
 	}
 
diff --git a/submodule.c b/submodule.c
index d0b70ca..3cbcf40 100644
--- a/submodule.c
+++ b/submodule.c
@@ -1726,14 +1726,6 @@
 int submodule_uses_gitfile(const char *path)
 {
 	struct child_process cp = CHILD_PROCESS_INIT;
-	const char *argv[] = {
-		"submodule",
-		"foreach",
-		"--quiet",
-		"--recursive",
-		"test -f .git",
-		NULL,
-	};
 	struct strbuf buf = STRBUF_INIT;
 	const char *git_dir;
 
@@ -1746,7 +1738,10 @@
 	strbuf_release(&buf);
 
 	/* Now test that all nested submodules use a gitfile too */
-	cp.argv = argv;
+	strvec_pushl(&cp.args,
+		     "submodule", "foreach", "--quiet",	"--recursive",
+		     "test -f .git", NULL);
+
 	prepare_submodule_repo_env(&cp.env_array);
 	cp.git_cmd = 1;
 	cp.no_stdin = 1;
diff --git a/t/helper/.gitignore b/t/helper/.gitignore
index 48c7bb0bb..8c2ddcc 100644
--- a/t/helper/.gitignore
+++ b/t/helper/.gitignore
@@ -1,4 +1,2 @@
 /test-tool
 /test-fake-ssh
-/test-line-buffer
-/test-svn-fe
diff --git a/t/helper/test-line-buffer.c b/t/helper/test-line-buffer.c
deleted file mode 100644
index 078dd7e..0000000
--- a/t/helper/test-line-buffer.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * test-line-buffer.c: code to exercise the svn importer's input helper
- */
-
-#include "git-compat-util.h"
-#include "strbuf.h"
-#include "vcs-svn/line_buffer.h"
-
-static uint32_t strtouint32(const char *s)
-{
-	char *end;
-	uintmax_t n = strtoumax(s, &end, 10);
-	if (*s == '\0' || *end != '\0')
-		die("invalid count: %s", s);
-	return (uint32_t) n;
-}
-
-static void handle_command(const char *command, const char *arg, struct line_buffer *buf)
-{
-	if (starts_with(command, "binary ")) {
-		struct strbuf sb = STRBUF_INIT;
-		strbuf_addch(&sb, '>');
-		buffer_read_binary(buf, &sb, strtouint32(arg));
-		fwrite(sb.buf, 1, sb.len, stdout);
-		strbuf_release(&sb);
-	} else if (starts_with(command, "copy ")) {
-		buffer_copy_bytes(buf, strtouint32(arg));
-	} else if (starts_with(command, "skip ")) {
-		buffer_skip_bytes(buf, strtouint32(arg));
-	} else {
-		die("unrecognized command: %s", command);
-	}
-}
-
-static void handle_line(const char *line, struct line_buffer *stdin_buf)
-{
-	const char *arg = strchr(line, ' ');
-	if (!arg)
-		die("no argument in line: %s", line);
-	handle_command(line, arg + 1, stdin_buf);
-}
-
-int cmd_main(int argc, const char **argv)
-{
-	struct line_buffer stdin_buf = LINE_BUFFER_INIT;
-	struct line_buffer file_buf = LINE_BUFFER_INIT;
-	struct line_buffer *input = &stdin_buf;
-	const char *filename;
-	char *s;
-
-	if (argc == 1)
-		filename = NULL;
-	else if (argc == 2)
-		filename = argv[1];
-	else
-		usage("test-line-buffer [file | &fd] < script");
-
-	if (buffer_init(&stdin_buf, NULL))
-		die_errno("open error");
-	if (filename) {
-		if (*filename == '&') {
-			if (buffer_fdinit(&file_buf, strtouint32(filename + 1)))
-				die_errno("error opening fd %s", filename + 1);
-		} else {
-			if (buffer_init(&file_buf, filename))
-				die_errno("error opening %s", filename);
-		}
-		input = &file_buf;
-	}
-
-	while ((s = buffer_read_line(&stdin_buf)))
-		handle_line(s, input);
-
-	if (filename && buffer_deinit(&file_buf))
-		die("error reading from %s", filename);
-	if (buffer_deinit(&stdin_buf))
-		die("input error");
-	if (ferror(stdout))
-		die("output error");
-	return 0;
-}
diff --git a/t/helper/test-svn-fe.c b/t/helper/test-svn-fe.c
deleted file mode 100644
index 7667c08..0000000
--- a/t/helper/test-svn-fe.c
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * test-svn-fe: Code to exercise the svn import lib
- */
-
-#include "git-compat-util.h"
-#include "vcs-svn/svndump.h"
-#include "vcs-svn/svndiff.h"
-#include "vcs-svn/sliding_window.h"
-#include "vcs-svn/line_buffer.h"
-
-static const char test_svnfe_usage[] =
-	"test-svn-fe (<dumpfile> | [-d] <preimage> <delta> <len>)";
-
-static int apply_delta(int argc, const char **argv)
-{
-	struct line_buffer preimage = LINE_BUFFER_INIT;
-	struct line_buffer delta = LINE_BUFFER_INIT;
-	struct sliding_view preimage_view = SLIDING_VIEW_INIT(&preimage, -1);
-
-	if (argc != 5)
-		usage(test_svnfe_usage);
-
-	if (buffer_init(&preimage, argv[2]))
-		die_errno("cannot open preimage");
-	if (buffer_init(&delta, argv[3]))
-		die_errno("cannot open delta");
-	if (svndiff0_apply(&delta, (off_t) strtoumax(argv[4], NULL, 0),
-					&preimage_view, stdout))
-		return 1;
-	if (buffer_deinit(&preimage))
-		die_errno("cannot close preimage");
-	if (buffer_deinit(&delta))
-		die_errno("cannot close delta");
-	strbuf_release(&preimage_view.buf);
-	return 0;
-}
-
-int cmd_main(int argc, const char **argv)
-{
-	if (argc == 2) {
-		if (svndump_init(argv[1]))
-			return 1;
-		svndump_read(NULL, "refs/heads/master", "refs/notes/svn/revs");
-		svndump_deinit();
-		svndump_reset();
-		return 0;
-	}
-
-	if (argc >= 2 && !strcmp(argv[1], "-d"))
-		return apply_delta(argc, argv);
-	usage(test_svnfe_usage);
-}
diff --git a/t/perf/README b/t/perf/README
index c7b70e2..bd649af 100644
--- a/t/perf/README
+++ b/t/perf/README
@@ -84,6 +84,15 @@
 	probably be about linux.git size for optimal results.
 	Both default to the git.git you are running from.
 
+    GIT_PERF_EXTRA
+	Boolean to enable additional tests. Most test scripts are
+	written to detect regressions between two versions of Git, and
+	the output will compare timings for individual tests between
+	those versions. Some scripts have additional tests which are not
+	run by default, that show patterns within a single version of
+	Git (e.g., performance of index-pack as the number of threads
+	changes). These can be enabled with GIT_PERF_EXTRA.
+
 You can also pass the options taken by ordinary git tests; the most
 useful one is:
 
diff --git a/t/perf/p1400-update-ref.sh b/t/perf/p1400-update-ref.sh
index d275a81..ce5ac3e 100755
--- a/t/perf/p1400-update-ref.sh
+++ b/t/perf/p1400-update-ref.sh
@@ -7,11 +7,13 @@
 test_perf_fresh_repo
 
 test_expect_success "setup" '
+	git init --bare target-repo.git &&
 	test_commit PRE &&
 	test_commit POST &&
 	printf "create refs/heads/%d PRE\n" $(test_seq 1000) >create &&
 	printf "update refs/heads/%d POST PRE\n" $(test_seq 1000) >update &&
-	printf "delete refs/heads/%d POST\n" $(test_seq 1000) >delete
+	printf "delete refs/heads/%d POST\n" $(test_seq 1000) >delete &&
+	git update-ref --stdin <create
 '
 
 test_perf "update-ref" '
@@ -24,9 +26,14 @@
 '
 
 test_perf "update-ref --stdin" '
-	git update-ref --stdin <create &&
 	git update-ref --stdin <update &&
-	git update-ref --stdin <delete
+	git update-ref --stdin <delete &&
+	git update-ref --stdin <create
+'
+
+test_perf "nonatomic push" '
+	git push ./target-repo.git $(test_seq 1000) &&
+	git push --delete ./target-repo.git $(test_seq 1000)
 '
 
 test_done
diff --git a/t/perf/p5302-pack-index.sh b/t/perf/p5302-pack-index.sh
index a9b3e11..228593d 100755
--- a/t/perf/p5302-pack-index.sh
+++ b/t/perf/p5302-pack-index.sh
@@ -13,35 +13,36 @@
 	export PACK
 '
 
-test_perf 'index-pack 0 threads' '
+# Rather than counting up and doubling each time, count down from the endpoint,
+# halving each time. That ensures that our final test uses as many threads as
+# CPUs, even if it isn't a power of 2.
+test_expect_success 'set up thread-counting tests' '
+	t=$(test-tool online-cpus) &&
+	threads= &&
+	while test $t -gt 0
+	do
+		threads="$t $threads"
+		t=$((t / 2))
+	done
+'
+
+test_perf PERF_EXTRA 'index-pack 0 threads' '
 	rm -rf repo.git &&
 	git init --bare repo.git &&
 	GIT_DIR=repo.git git index-pack --threads=1 --stdin < $PACK
 '
 
-test_perf 'index-pack 1 thread ' '
-	rm -rf repo.git &&
-	git init --bare repo.git &&
-	GIT_DIR=repo.git GIT_FORCE_THREADS=1 git index-pack --threads=1 --stdin < $PACK
-'
-
-test_perf 'index-pack 2 threads' '
-	rm -rf repo.git &&
-	git init --bare repo.git &&
-	GIT_DIR=repo.git git index-pack --threads=2 --stdin < $PACK
-'
-
-test_perf 'index-pack 4 threads' '
-	rm -rf repo.git &&
-	git init --bare repo.git &&
-	GIT_DIR=repo.git git index-pack --threads=4 --stdin < $PACK
-'
-
-test_perf 'index-pack 8 threads' '
-	rm -rf repo.git &&
-	git init --bare repo.git &&
-	GIT_DIR=repo.git git index-pack --threads=8 --stdin < $PACK
-'
+for t in $threads
+do
+	THREADS=$t
+	export THREADS
+	test_perf PERF_EXTRA "index-pack $t threads" '
+		rm -rf repo.git &&
+		git init --bare repo.git &&
+		GIT_DIR=repo.git GIT_FORCE_THREADS=1 \
+		git index-pack --threads=$THREADS --stdin <$PACK
+	'
+done
 
 test_perf 'index-pack default number of threads' '
 	rm -rf repo.git &&
diff --git a/t/perf/perf-lib.sh b/t/perf/perf-lib.sh
index 13e3893..821581a 100644
--- a/t/perf/perf-lib.sh
+++ b/t/perf/perf-lib.sh
@@ -245,3 +245,5 @@
 test_export () {
 	export "$@"
 }
+
+test_lazy_prereq PERF_EXTRA 'test_bool_env GIT_PERF_EXTRA false'
diff --git a/t/t0081-line-buffer.sh b/t/t0081-line-buffer.sh
deleted file mode 100755
index ce92e6a..0000000
--- a/t/t0081-line-buffer.sh
+++ /dev/null
@@ -1,90 +0,0 @@
-#!/bin/sh
-
-test_description="Test the svn importer's input handling routines.
-
-These tests provide some simple checks that the line_buffer API
-behaves as advertised.
-
-While at it, check that input of newlines and null bytes are handled
-correctly.
-"
-. ./test-lib.sh
-
-test_expect_success 'hello world' '
-	echo ">HELLO" >expect &&
-	test-line-buffer <<-\EOF >actual &&
-	binary 6
-	HELLO
-	EOF
-	test_cmp expect actual
-'
-
-test_expect_success '0-length read, send along greeting' '
-	echo ">HELLO" >expect &&
-	test-line-buffer <<-\EOF >actual &&
-	binary 0
-	copy 6
-	HELLO
-	EOF
-	test_cmp expect actual
-'
-
-test_expect_success !MINGW 'read from file descriptor' '
-	rm -f input &&
-	echo hello >expect &&
-	echo hello >input &&
-	echo copy 6 |
-	test-line-buffer "&4" 4<input >actual &&
-	test_cmp expect actual
-'
-
-test_expect_success 'skip, copy null byte' '
-	echo Q | q_to_nul >expect &&
-	q_to_nul <<-\EOF | test-line-buffer >actual &&
-	skip 2
-	Q
-	copy 2
-	Q
-	EOF
-	test_cmp expect actual
-'
-
-test_expect_success 'read null byte' '
-	echo ">QhelloQ" | q_to_nul >expect &&
-	q_to_nul <<-\EOF | test-line-buffer >actual &&
-	binary 8
-	QhelloQ
-	EOF
-	test_cmp expect actual
-'
-
-test_expect_success 'long reads are truncated' '
-	echo ">foo" >expect &&
-	test-line-buffer <<-\EOF >actual &&
-	binary 5
-	foo
-	EOF
-	test_cmp expect actual
-'
-
-test_expect_success 'long copies are truncated' '
-	printf "%s\n" ">" foo >expect &&
-	test-line-buffer <<-\EOF >actual &&
-	binary 1
-
-	copy 5
-	foo
-	EOF
-	test_cmp expect actual
-'
-
-test_expect_success 'long binary reads are truncated' '
-	echo ">foo" >expect &&
-	test-line-buffer <<-\EOF >actual &&
-	binary 5
-	foo
-	EOF
-	test_cmp expect actual
-'
-
-test_done
diff --git a/t/t0410-partial-clone.sh b/t/t0410-partial-clone.sh
index a5ebdf9..584a039 100755
--- a/t/t0410-partial-clone.sh
+++ b/t/t0410-partial-clone.sh
@@ -183,7 +183,7 @@
 '
 
 test_expect_success 'fetching of missing objects' '
-	rm -rf repo &&
+	rm -rf repo err &&
 	test_create_repo server &&
 	test_commit -C server foo &&
 	git -C server repack -a -d --write-bitmap-index &&
@@ -194,7 +194,10 @@
 
 	git -C repo config core.repositoryformatversion 1 &&
 	git -C repo config extensions.partialclone "origin" &&
-	git -C repo cat-file -p "$HASH" &&
+	git -C repo cat-file -p "$HASH" 2>err &&
+
+	# Ensure that no spurious FETCH_HEAD messages are written
+	! grep FETCH_HEAD err &&
 
 	# Ensure that the .promisor file is written, and check that its
 	# associated packfile contains the object
@@ -214,7 +217,7 @@
 	rm -rf repo/.git/objects/* &&
 	rm -f trace &&
 	GIT_TRACE_PACKET="$(pwd)/trace" git -C repo cat-file -p "$HASH" &&
-	grep "git< fetch=.*ref-in-want" trace
+	grep "fetch< fetch=.*ref-in-want" trace
 '
 
 test_expect_success 'fetching of missing objects from another promisor remote' '
diff --git a/t/t2025-checkout-no-overlay.sh b/t/t2025-checkout-no-overlay.sh
index 76330cb..fa9e098 100755
--- a/t/t2025-checkout-no-overlay.sh
+++ b/t/t2025-checkout-no-overlay.sh
@@ -44,4 +44,16 @@
 	test_path_is_missing file1
 '
 
+test_expect_success 'wildcard pathspec matches file in subdirectory' '
+	git reset --hard &&
+	mkdir subdir &&
+	test_commit file3-1 subdir/file3 &&
+	test_commit file3-2 subdir/file3 &&
+
+	git checkout --no-overlay file3-1 "*file3" &&
+	echo file3-1 >expect &&
+	test_path_is_file subdir/file3 &&
+	test_cmp expect subdir/file3
+'
+
 test_done
diff --git a/t/t2072-restore-pathspec-file.sh b/t/t2072-restore-pathspec-file.sh
index 0d47946..b48345b 100755
--- a/t/t2072-restore-pathspec-file.sh
+++ b/t/t2072-restore-pathspec-file.sh
@@ -9,18 +9,21 @@
 test_expect_success setup '
 	test_commit file0 &&
 
+	mkdir dir1 &&
+	echo 1 >dir1/file &&
 	echo 1 >fileA.t &&
 	echo 1 >fileB.t &&
 	echo 1 >fileC.t &&
 	echo 1 >fileD.t &&
-	git add fileA.t fileB.t fileC.t fileD.t &&
+	git add dir1 fileA.t fileB.t fileC.t fileD.t &&
 	git commit -m "files 1" &&
 
+	echo 2 >dir1/file &&
 	echo 2 >fileA.t &&
 	echo 2 >fileB.t &&
 	echo 2 >fileC.t &&
 	echo 2 >fileD.t &&
-	git add fileA.t fileB.t fileC.t fileD.t &&
+	git add dir1 fileA.t fileB.t fileC.t fileD.t &&
 	git commit -m "files 2" &&
 
 	git tag checkpoint
@@ -31,7 +34,7 @@
 }
 
 verify_expect () {
-	git status --porcelain --untracked-files=no -- fileA.t fileB.t fileC.t fileD.t >actual &&
+	git status --porcelain --untracked-files=no -- dir1 fileA.t fileB.t fileC.t fileD.t >actual &&
 	test_cmp expect actual
 }
 
@@ -161,4 +164,14 @@
 	test_i18ngrep -e "you must specify path(s) to restore" err
 '
 
+test_expect_success 'wildcard pathspec matches file in subdirectory' '
+	restore_checkpoint &&
+
+	echo "*file" | git restore --pathspec-from-file=- --source=HEAD^1 &&
+	cat >expect <<-\EOF &&
+	 M dir1/file
+	EOF
+	verify_expect
+'
+
 test_done
diff --git a/t/t3422-rebase-incompatible-options.sh b/t/t3422-rebase-incompatible-options.sh
index 50e7960..c823406 100755
--- a/t/t3422-rebase-incompatible-options.sh
+++ b/t/t3422-rebase-incompatible-options.sh
@@ -61,8 +61,6 @@
 }
 
 test_rebase_am_only --whitespace=fix
-test_rebase_am_only --ignore-whitespace
-test_rebase_am_only --committer-date-is-author-date
 test_rebase_am_only -C4
 
 test_expect_success REBASE_P '--preserve-merges incompatible with --signoff' '
diff --git a/t/t3436-rebase-more-options.sh b/t/t3436-rebase-more-options.sh
new file mode 100755
index 0000000..996e827
--- /dev/null
+++ b/t/t3436-rebase-more-options.sh
@@ -0,0 +1,180 @@
+#!/bin/sh
+#
+# Copyright (c) 2019 Rohit Ashiwal
+#
+
+test_description='tests to ensure compatibility between am and interactive backends'
+
+. ./test-lib.sh
+
+. "$TEST_DIRECTORY"/lib-rebase.sh
+
+GIT_AUTHOR_DATE="1999-04-02T08:03:20+05:30"
+export GIT_AUTHOR_DATE
+
+# This is a special case in which both am and interactive backends
+# provide the same output. It was done intentionally because
+# both the backends fall short of optimal behaviour.
+test_expect_success 'setup' '
+	git checkout -b topic &&
+	test_write_lines "line 1" "	line 2" "line 3" >file &&
+	git add file &&
+	git commit -m "add file" &&
+
+	test_write_lines "line 1" "new line 2" "line 3" >file &&
+	git commit -am "update file" &&
+	git tag side &&
+	test_commit commit1 foo foo1 &&
+	test_commit commit2 foo foo2 &&
+	test_commit commit3 foo foo3 &&
+
+	git checkout --orphan master &&
+	rm foo &&
+	test_write_lines "line 1" "        line 2" "line 3" >file &&
+	git commit -am "add file" &&
+	git tag main &&
+
+	mkdir test-bin &&
+	write_script test-bin/git-merge-test <<-\EOF
+	exec git merge-recursive "$@"
+	EOF
+'
+
+test_expect_success '--ignore-whitespace works with apply backend' '
+	test_must_fail git rebase --apply main side &&
+	git rebase --abort &&
+	git rebase --apply --ignore-whitespace main side &&
+	git diff --exit-code side
+'
+
+test_expect_success '--ignore-whitespace works with merge backend' '
+	test_must_fail git rebase --merge main side &&
+	git rebase --abort &&
+	git rebase --merge --ignore-whitespace main side &&
+	git diff --exit-code side
+'
+
+test_expect_success '--ignore-whitespace is remembered when continuing' '
+	(
+		set_fake_editor &&
+		FAKE_LINES="break 1" git rebase -i --ignore-whitespace \
+			main side &&
+		git rebase --continue
+	) &&
+	git diff --exit-code side
+'
+
+test_ctime_is_atime () {
+	git log $1 --format=%ai >authortime &&
+	git log $1 --format=%ci >committertime &&
+	test_cmp authortime committertime
+}
+
+test_expect_success '--committer-date-is-author-date works with apply backend' '
+	GIT_AUTHOR_DATE="@1234 +0300" git commit --amend --reset-author &&
+	git rebase --apply --committer-date-is-author-date HEAD^ &&
+	test_ctime_is_atime -1
+'
+
+test_expect_success '--committer-date-is-author-date works with merge backend' '
+	GIT_AUTHOR_DATE="@1234 +0300" git commit --amend --reset-author &&
+	git rebase -m --committer-date-is-author-date HEAD^ &&
+	test_ctime_is_atime -1
+'
+
+test_expect_success '--committer-date-is-author-date works with rebase -r' '
+	git checkout side &&
+	GIT_AUTHOR_DATE="@1234 +0300" git merge --no-ff commit3 &&
+	git rebase -r --root --committer-date-is-author-date &&
+	test_ctime_is_atime
+'
+
+test_expect_success '--committer-date-is-author-date works when forking merge' '
+	git checkout side &&
+	GIT_AUTHOR_DATE="@1234 +0300" git merge --no-ff commit3 &&
+	PATH="./test-bin:$PATH" git rebase -r --root --strategy=test \
+					--committer-date-is-author-date &&
+	test_ctime_is_atime
+'
+
+test_expect_success '--committer-date-is-author-date works when committing conflict resolution' '
+	git checkout commit2 &&
+	GIT_AUTHOR_DATE="@1980 +0000" git commit --amend --only --reset-author &&
+	test_must_fail git rebase -m --committer-date-is-author-date \
+		--onto HEAD^^ HEAD^ &&
+	echo resolved > foo &&
+	git add foo &&
+	git rebase --continue &&
+	test_ctime_is_atime -1
+'
+
+# Checking for +0000 in the author date is sufficient since the
+# default timezone is UTC but the timezone used while committing is
+# +0530. The inverted logic in the grep is necessary to check all the
+# author dates in the file.
+test_atime_is_ignored () {
+	git log $1 --format=%ai >authortime &&
+	! grep -v +0000 authortime
+}
+
+test_expect_success '--reset-author-date works with apply backend' '
+	git commit --amend --date="$GIT_AUTHOR_DATE" &&
+	git rebase --apply --reset-author-date HEAD^ &&
+	test_atime_is_ignored -1
+'
+
+test_expect_success '--reset-author-date works with merge backend' '
+	git commit --amend --date="$GIT_AUTHOR_DATE" &&
+	git rebase --reset-author-date -m HEAD^ &&
+	test_atime_is_ignored -1
+'
+
+test_expect_success '--reset-author-date works after conflict resolution' '
+	test_must_fail git rebase --reset-author-date -m \
+		--onto commit2^^ commit2^ commit2 &&
+	echo resolved >foo &&
+	git add foo &&
+	git rebase --continue &&
+	test_atime_is_ignored -1
+'
+
+test_expect_success '--reset-author-date works with rebase -r' '
+	git checkout side &&
+	git merge --no-ff commit3 &&
+	git rebase -r --root --reset-author-date &&
+	test_atime_is_ignored
+'
+
+test_expect_success '--reset-author-date with --committer-date-is-author-date works' '
+	test_must_fail git rebase -m --committer-date-is-author-date \
+		--reset-author-date --onto commit2^^ commit2^ commit3 &&
+	git checkout --theirs foo &&
+	git add foo &&
+	git rebase --continue &&
+	test_ctime_is_atime -2 &&
+	test_atime_is_ignored -2
+'
+
+test_expect_success '--reset-author-date --committer-date-is-author-date works when forking merge' '
+	GIT_SEQUENCE_EDITOR="echo \"merge -C $(git rev-parse HEAD) commit3\">" \
+		PATH="./test-bin:$PATH" git rebase -i --strategy=test \
+				--reset-author-date \
+				--committer-date-is-author-date side side &&
+	test_ctime_is_atime -1 &&
+	test_atime_is_ignored -1
+ '
+
+test_expect_success '--ignore-date is an alias for --reset-author-date' '
+	git commit --amend --date="$GIT_AUTHOR_DATE" &&
+	git rebase --apply --ignore-date HEAD^ &&
+	git commit --allow-empty -m empty --date="$GIT_AUTHOR_DATE" &&
+	git rebase -m --ignore-date HEAD^ &&
+	test_atime_is_ignored -2
+'
+
+# This must be the last test in this file
+test_expect_success '$EDITOR and friends are unchanged' '
+	test_editor_unchanged
+'
+
+test_done
diff --git a/t/t4013-diff-various.sh b/t/t4013-diff-various.sh
index 5f97dd6..5c7b012 100755
--- a/t/t4013-diff-various.sh
+++ b/t/t4013-diff-various.sh
@@ -130,27 +130,45 @@
 EOF
 
 process_diffs () {
-	_x04="[0-9a-f][0-9a-f][0-9a-f][0-9a-f]" &&
-	_x07="$_x05[0-9a-f][0-9a-f]" &&
-	sed -e "s/$OID_REGEX/$ZERO_OID/g" \
-	    -e "s/From $_x40 /From $ZERO_OID /" \
-	    -e "s/from $_x40)/from $ZERO_OID)/" \
-	    -e "s/commit $_x40\$/commit $ZERO_OID/" \
-	    -e "s/commit $_x40 (/commit $ZERO_OID (/" \
-	    -e "s/$_x40 $_x40 $_x40/$ZERO_OID $ZERO_OID $ZERO_OID/" \
-	    -e "s/$_x40 $_x40 /$ZERO_OID $ZERO_OID /" \
-	    -e "s/^$_x40 $_x40$/$ZERO_OID $ZERO_OID/" \
-	    -e "s/^$_x40 /$ZERO_OID /" \
-	    -e "s/^$_x40$/$ZERO_OID/" \
-	    -e "s/$_x07\.\.$_x07/fffffff..fffffff/g" \
-	    -e "s/$_x07,$_x07\.\.$_x07/fffffff,fffffff..fffffff/g" \
-	    -e "s/$_x07 $_x07 $_x07/fffffff fffffff fffffff/g" \
-	    -e "s/$_x07 $_x07 /fffffff fffffff /g" \
-	    -e "s/Merge: $_x07 $_x07/Merge: fffffff fffffff/g" \
-	    -e "s/$_x07\.\.\./fffffff.../g" \
-	    -e "s/ $_x04\.\.\./ ffff.../g" \
-	    -e "s/ $_x04/ ffff/g" \
-	    "$1"
+	perl -e '
+		my $oid_length = length($ARGV[0]);
+		my $x40 = "[0-9a-f]{40}";
+		my $xab = "[0-9a-f]{4,16}";
+		my $orx = "[0-9a-f]" x $oid_length;
+
+		sub munge_oid {
+			my ($oid) = @_;
+			my $x;
+
+			return "" unless length $oid;
+
+			if ($oid =~ /^(100644|100755|120000)$/) {
+				return $oid;
+			}
+
+			if ($oid =~ /^0*$/) {
+				$x = "0";
+			} else {
+				$x = "f";
+			}
+
+			if (length($oid) == 40) {
+				return $x x $oid_length;
+			} else {
+				return $x x length($oid);
+			}
+		}
+
+		while (<STDIN>) {
+			s/($orx)/munge_oid($1)/ge;
+			s/From ($x40)( |\))/"From " . munge_oid($1) . $2/ge;
+			s/commit ($x40)($| \(from )($x40?)/"commit " .  munge_oid($1) . $2 . munge_oid($3)/ge;
+			s/\b($x40)( |\.\.|$)/munge_oid($1) . $2/ge;
+			s/^($x40)($| )/munge_oid($1) . $2/e;
+			s/($xab)(\.\.|,| |\.\.\.|$)/munge_oid($1) . $2/ge;
+			print;
+		}
+	' "$ZERO_OID" <"$1"
 }
 
 V=$(git version | sed -e 's/^git version //' -e 's/\./\\./g')
@@ -221,6 +239,9 @@
 :noellipses diff-tree --root -r --abbrev=4 initial
 diff-tree -p initial
 diff-tree --root -p initial
+diff-tree --root -p --abbrev=10 initial
+diff-tree --root -p --full-index initial
+diff-tree --root -p --full-index --abbrev=10 initial
 diff-tree --patch-with-stat initial
 diff-tree --root --patch-with-stat initial
 diff-tree --patch-with-raw initial
diff --git a/t/t4013/diff.diff-tree_--root_-p_--abbrev=10_initial b/t/t4013/diff.diff-tree_--root_-p_--abbrev=10_initial
new file mode 100644
index 0000000..7518a90
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--root_-p_--abbrev=10_initial
@@ -0,0 +1,29 @@
+$ git diff-tree --root -p --abbrev=10 initial
+444ac553ac7612cc88969031b02b3767fb8a353a
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000000..35d242ba79
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000000..01e79c32a8
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000000..01e79c32a8
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.diff-tree_--root_-p_--full-index_--abbrev=10_initial b/t/t4013/diff.diff-tree_--root_-p_--full-index_--abbrev=10_initial
new file mode 100644
index 0000000..69f913f
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--root_-p_--full-index_--abbrev=10_initial
@@ -0,0 +1,29 @@
+$ git diff-tree --root -p --full-index --abbrev=10 initial
+444ac553ac7612cc88969031b02b3767fb8a353a
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000000000000000000000000000000000000..35d242ba79ae89ac695e26b3d4c27a8e6f028f9e
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000000000000000000000000000000000000..01e79c32a8c99c557f0757da7cb6d65b3414466d
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000000000000000000000000000000000000..01e79c32a8c99c557f0757da7cb6d65b3414466d
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.diff-tree_--root_-p_--full-index_initial b/t/t4013/diff.diff-tree_--root_-p_--full-index_initial
new file mode 100644
index 0000000..1b0b671
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--root_-p_--full-index_initial
@@ -0,0 +1,29 @@
+$ git diff-tree --root -p --full-index initial
+444ac553ac7612cc88969031b02b3767fb8a353a
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000000000000000000000000000000000000..35d242ba79ae89ac695e26b3d4c27a8e6f028f9e
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000000000000000000000000000000000000..01e79c32a8c99c557f0757da7cb6d65b3414466d
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000000000000000000000000000000000000..01e79c32a8c99c557f0757da7cb6d65b3414466d
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4015-diff-whitespace.sh b/t/t4015-diff-whitespace.sh
index 88d3026..8bdaa0a 100755
--- a/t/t4015-diff-whitespace.sh
+++ b/t/t4015-diff-whitespace.sh
@@ -789,7 +789,7 @@
 	git diff --check
 '
 
-test_expect_success 'whitespace-only changes not reported' '
+test_expect_success 'whitespace-only changes not reported (diff)' '
 	git reset --hard &&
 	echo >x "hello world" &&
 	git add x &&
@@ -799,8 +799,42 @@
 	test_must_be_empty actual
 '
 
-test_expect_success 'whitespace-only changes reported across renames' '
+test_expect_success 'whitespace-only changes not reported (diffstat)' '
+	# reuse state from previous test
+	git diff --stat -b >actual &&
+	test_must_be_empty actual
+'
+
+test_expect_success 'whitespace changes with modification reported (diffstat)' '
 	git reset --hard &&
+	echo >x "hello  world" &&
+	git update-index --chmod=+x x &&
+	git diff --stat --cached -b >actual &&
+	cat <<-EOF >expect &&
+	 x | 0
+	 1 file changed, 0 insertions(+), 0 deletions(-)
+	EOF
+	test_cmp expect actual
+'
+
+test_expect_success 'whitespace-only changes reported across renames (diffstat)' '
+	git reset --hard &&
+	for i in 1 2 3 4 5 6 7 8 9; do echo "$i$i$i$i$i$i"; done >x &&
+	git add x &&
+	git commit -m "base" &&
+	sed -e "5s/^/ /" x >z &&
+	git rm x &&
+	git add z &&
+	git diff -w -M --cached --stat >actual &&
+	cat <<-EOF >expect &&
+	 x => z | 0
+	 1 file changed, 0 insertions(+), 0 deletions(-)
+	EOF
+	test_cmp expect actual
+'
+
+test_expect_success 'whitespace-only changes reported across renames' '
+	git reset --hard HEAD~1 &&
 	for i in 1 2 3 4 5 6 7 8 9; do echo "$i$i$i$i$i$i"; done >x &&
 	git add x &&
 	hash_x=$(git hash-object x) &&
diff --git a/t/t4067-diff-partial-clone.sh b/t/t4067-diff-partial-clone.sh
index ef8e0e9..804f2a8 100755
--- a/t/t4067-diff-partial-clone.sh
+++ b/t/t4067-diff-partial-clone.sh
@@ -20,7 +20,7 @@
 	# Ensure that there is exactly 1 negotiation by checking that there is
 	# only 1 "done" line sent. ("done" marks the end of negotiation.)
 	GIT_TRACE_PACKET="$(pwd)/trace" git -C client show HEAD &&
-	grep "git> done" trace >done_lines &&
+	grep "fetch> done" trace >done_lines &&
 	test_line_count = 1 done_lines
 '
 
@@ -44,7 +44,7 @@
 	# Ensure that there is exactly 1 negotiation by checking that there is
 	# only 1 "done" line sent. ("done" marks the end of negotiation.)
 	GIT_TRACE_PACKET="$(pwd)/trace" git -C client diff HEAD^ HEAD &&
-	grep "git> done" trace >done_lines &&
+	grep "fetch> done" trace >done_lines &&
 	test_line_count = 1 done_lines
 '
 
@@ -127,7 +127,7 @@
 	# only 1 "done" line sent. ("done" marks the end of negotiation.)
 	GIT_TRACE_PACKET="$(pwd)/trace" git -C client diff --raw -M HEAD^ HEAD >out &&
 	grep ":100644 100644.*R[0-9][0-9][0-9].*b.*c" out &&
-	grep "git> done" trace >done_lines &&
+	grep "fetch> done" trace >done_lines &&
 	test_line_count = 1 done_lines
 '
 
@@ -175,7 +175,7 @@
 	# by checking that there is only 1 "done" line sent. ("done" marks the
 	# end of negotiation.)
 	GIT_TRACE_PACKET="$(pwd)/trace" git -C client diff --break-rewrites --raw -M HEAD^ HEAD &&
-	grep "git> done" trace >done_lines &&
+	grep "fetch> done" trace >done_lines &&
 	test_line_count = 1 done_lines
 '
 
diff --git a/t/t4202-log.sh b/t/t4202-log.sh
index a093059..56d34ed 100755
--- a/t/t4202-log.sh
+++ b/t/t4202-log.sh
@@ -1850,6 +1850,16 @@
 	test_must_be_empty actual
 '
 
+test_expect_success 'do not default to HEAD with ignored object on cmdline' '
+	git log --ignore-missing $ZERO_OID >actual &&
+	test_must_be_empty actual
+'
+
+test_expect_success 'do not default to HEAD with ignored object on stdin' '
+	echo $ZERO_OID | git log --ignore-missing --stdin >actual &&
+	test_must_be_empty actual
+'
+
 test_expect_success 'set up --source tests' '
 	git checkout --orphan source-a &&
 	test_commit one &&
diff --git a/t/t5300-pack-object.sh b/t/t5300-pack-object.sh
index 3d6a933..392201c 100755
--- a/t/t5300-pack-object.sh
+++ b/t/t5300-pack-object.sh
@@ -528,7 +528,7 @@
 	TWO=$(git -C server rev-parse three_branch^) &&
 	git -C client fetch --filter=blob:none origin "$TWO" &&
 	GIT_TRACE_PACKET=$(pwd)/trace git -C client push origin "$TWO":refs/heads/two_branch &&
-	grep "git> done" trace >donelines &&
+	grep "fetch> done" trace >donelines &&
 	test_line_count = 1 donelines
 '
 
diff --git a/t/t5510-fetch.sh b/t/t5510-fetch.sh
index 2a1abe9..759aec9 100755
--- a/t/t5510-fetch.sh
+++ b/t/t5510-fetch.sh
@@ -543,16 +543,18 @@
 
 '
 
-test_expect_success 'fetch --dry-run does not touch FETCH_HEAD' '
-	rm -f .git/FETCH_HEAD &&
-	git fetch --dry-run . &&
-	! test -f .git/FETCH_HEAD
+test_expect_success 'fetch --dry-run does not touch FETCH_HEAD, but still prints what would be written' '
+	rm -f .git/FETCH_HEAD err &&
+	git fetch --dry-run . 2>err &&
+	! test -f .git/FETCH_HEAD &&
+	grep FETCH_HEAD err
 '
 
-test_expect_success '--no-write-fetch-head does not touch FETCH_HEAD' '
-	rm -f .git/FETCH_HEAD &&
-	git fetch --no-write-fetch-head . &&
-	! test -f .git/FETCH_HEAD
+test_expect_success '--no-write-fetch-head does not touch FETCH_HEAD, and does not print what would be written' '
+	rm -f .git/FETCH_HEAD err &&
+	git fetch --no-write-fetch-head . 2>err &&
+	! test -f .git/FETCH_HEAD &&
+	! grep FETCH_HEAD err
 '
 
 test_expect_success '--write-fetch-head gets defeated by --dry-run' '
diff --git a/t/t5554-noop-fetch-negotiator.sh b/t/t5554-noop-fetch-negotiator.sh
new file mode 100755
index 0000000..2ac7b58
--- /dev/null
+++ b/t/t5554-noop-fetch-negotiator.sh
@@ -0,0 +1,22 @@
+#!/bin/sh
+
+test_description='test noop fetch negotiator'
+. ./test-lib.sh
+
+test_expect_success 'noop negotiator does not emit any "have"' '
+	rm -f trace &&
+
+	test_create_repo server &&
+	test_commit -C server to_fetch &&
+
+	test_create_repo client &&
+	test_commit -C client we_have &&
+
+	test_config -C client fetch.negotiationalgorithm noop &&
+	GIT_TRACE_PACKET="$(pwd)/trace" git -C client fetch "$(pwd)/server" &&
+
+	! grep "fetch> have" trace &&
+	grep "fetch> done" trace
+'
+
+test_done
diff --git a/t/t5601-clone.sh b/t/t5601-clone.sh
index eb9a093..15fb64c 100755
--- a/t/t5601-clone.sh
+++ b/t/t5601-clone.sh
@@ -704,7 +704,7 @@
 	# Ensure that there is only one negotiation by checking that there is
 	# only "done" line sent. ("done" marks the end of negotiation.)
 	GIT_TRACE_PACKET="$(pwd)/trace" git -C client checkout HEAD^ &&
-	grep "git> done" trace >done_lines &&
+	grep "fetch> done" trace >done_lines &&
 	test_line_count = 1 done_lines
 '
 
diff --git a/t/t5616-partial-clone.sh b/t/t5616-partial-clone.sh
index 8827c2e..f4d49d8 100755
--- a/t/t5616-partial-clone.sh
+++ b/t/t5616-partial-clone.sh
@@ -163,6 +163,22 @@
 	test_line_count = 0 observed.oids
 '
 
+test_expect_success 'partial clone with transfer.fsckobjects=1 works with submodules' '
+	test_create_repo submodule &&
+	test_commit -C submodule mycommit &&
+
+	test_create_repo src_with_sub &&
+	test_config -C src_with_sub uploadpack.allowfilter 1 &&
+	test_config -C src_with_sub uploadpack.allowanysha1inwant 1 &&
+
+	git -C src_with_sub submodule add "file://$(pwd)/submodule" mysub &&
+	git -C src_with_sub commit -m "commit with submodule" &&
+
+	git -c transfer.fsckobjects=1 \
+		clone --filter="blob:none" "file://$(pwd)/src_with_sub" dst &&
+	test_when_finished rm -rf dst
+'
+
 test_expect_success 'partial clone with transfer.fsckobjects=1 uses index-pack --fsck-objects' '
 	git init src &&
 	test_commit -C src x &&
@@ -417,6 +433,26 @@
 	grep "want $(cat hash)" trace
 '
 
+test_expect_success 'fetch does not lazy-fetch missing targets of its refs' '
+	rm -rf server client trace &&
+
+	test_create_repo server &&
+	test_config -C server uploadpack.allowfilter 1 &&
+	test_config -C server uploadpack.allowanysha1inwant 1 &&
+	test_commit -C server foo &&
+
+	git clone --filter=blob:none "file://$(pwd)/server" client &&
+	# Make all refs point to nothing by deleting all objects.
+	rm client/.git/objects/pack/* &&
+
+	test_commit -C server bar &&
+	GIT_TRACE_PACKET="$(pwd)/trace" git -C client fetch \
+		--no-tags --recurse-submodules=no \
+		origin refs/tags/bar &&
+	FOO_HASH=$(git -C server rev-parse foo) &&
+	! grep "want $FOO_HASH" trace
+'
+
 # The following two tests must be in this order. It is important that
 # the srv.bare repository did not have tags during clone, but has tags
 # in the fetch.
diff --git a/t/t5702-protocol-v2.sh b/t/t5702-protocol-v2.sh
index 5a60fbe..7d5b179 100755
--- a/t/t5702-protocol-v2.sh
+++ b/t/t5702-protocol-v2.sh
@@ -883,6 +883,59 @@
 	test_i18ngrep "pack downloaded from.*does not match expected hash" err
 '
 
+test_expect_success 'packfile-uri with transfer.fsckobjects' '
+	P="$HTTPD_DOCUMENT_ROOT_PATH/http_parent" &&
+	rm -rf "$P" http_child log &&
+
+	git init "$P" &&
+	git -C "$P" config "uploadpack.allowsidebandall" "true" &&
+
+	echo my-blob >"$P/my-blob" &&
+	git -C "$P" add my-blob &&
+	git -C "$P" commit -m x &&
+
+	configure_exclusion "$P" my-blob >h &&
+
+	sane_unset GIT_TEST_SIDEBAND_ALL &&
+	git -c protocol.version=2 -c transfer.fsckobjects=1 \
+		-c fetch.uriprotocols=http,https \
+		clone "$HTTPD_URL/smart/http_parent" http_child &&
+
+	# Ensure that there are exactly 4 files (2 .pack and 2 .idx).
+	ls http_child/.git/objects/pack/* >filelist &&
+	test_line_count = 4 filelist
+'
+
+test_expect_success 'packfile-uri with transfer.fsckobjects fails on bad object' '
+	P="$HTTPD_DOCUMENT_ROOT_PATH/http_parent" &&
+	rm -rf "$P" http_child log &&
+
+	git init "$P" &&
+	git -C "$P" config "uploadpack.allowsidebandall" "true" &&
+
+	cat >bogus-commit <<-EOF &&
+	tree $EMPTY_TREE
+	author Bugs Bunny 1234567890 +0000
+	committer Bugs Bunny <bugs@bun.ni> 1234567890 +0000
+
+	This commit object intentionally broken
+	EOF
+	BOGUS=$(git -C "$P" hash-object -t commit -w --stdin <bogus-commit) &&
+	git -C "$P" branch bogus-branch "$BOGUS" &&
+
+	echo my-blob >"$P/my-blob" &&
+	git -C "$P" add my-blob &&
+	git -C "$P" commit -m x &&
+
+	configure_exclusion "$P" my-blob >h &&
+
+	sane_unset GIT_TEST_SIDEBAND_ALL &&
+	test_must_fail git -c protocol.version=2 -c transfer.fsckobjects=1 \
+		-c fetch.uriprotocols=http,https \
+		clone "$HTTPD_URL/smart/http_parent" http_child 2>error &&
+	test_i18ngrep "invalid author/committer line - missing email" error
+'
+
 # DO NOT add non-httpd-specific tests here, because the last part of this
 # test script is only executed when httpd is available and enabled.
 
diff --git a/t/t6018-rev-list-glob.sh b/t/t6018-rev-list-glob.sh
index bb5aeac..b31ff7e 100755
--- a/t/t6018-rev-list-glob.sh
+++ b/t/t6018-rev-list-glob.sh
@@ -345,6 +345,11 @@
 	test_must_be_empty actual
 '
 
+test_expect_success 'rev-list should succeed with empty output when ignoring missing' '
+	git rev-list --ignore-missing $ZERO_OID >actual &&
+	test_must_be_empty actual
+'
+
 test_expect_success 'shortlog accepts --glob/--tags/--remotes' '
 
 	compare shortlog "subspace/one subspace/two" --branches=subspace &&
diff --git a/t/t6300-for-each-ref.sh b/t/t6300-for-each-ref.sh
index a83579f..58adee7 100755
--- a/t/t6300-for-each-ref.sh
+++ b/t/t6300-for-each-ref.sh
@@ -776,61 +776,40 @@
 '
 
 test_expect_success '%(trailers:unfold) unfolds trailers' '
-	git for-each-ref --format="%(trailers:unfold)" refs/heads/master >actual &&
 	{
 		unfold <trailers
 		echo
 	} >expect &&
+	git for-each-ref --format="%(trailers:unfold)" refs/heads/master >actual &&
+	test_cmp expect actual &&
+	git for-each-ref --format="%(contents:trailers:unfold)" refs/heads/master >actual &&
 	test_cmp expect actual
 '
 
 test_expect_success '%(trailers:only) shows only "key: value" trailers' '
-	git for-each-ref --format="%(trailers:only)" refs/heads/master >actual &&
 	{
 		grep -v patch.description <trailers &&
 		echo
 	} >expect &&
+	git for-each-ref --format="%(trailers:only)" refs/heads/master >actual &&
+	test_cmp expect actual &&
+	git for-each-ref --format="%(contents:trailers:only)" refs/heads/master >actual &&
 	test_cmp expect actual
 '
 
 test_expect_success '%(trailers:only) and %(trailers:unfold) work together' '
+	{
+		grep -v patch.description <trailers | unfold &&
+		echo
+	} >expect &&
 	git for-each-ref --format="%(trailers:only,unfold)" refs/heads/master >actual &&
-	git for-each-ref --format="%(trailers:unfold,only)" refs/heads/master >reverse &&
-	test_cmp actual reverse &&
-	{
-		grep -v patch.description <trailers | unfold &&
-		echo
-	} >expect &&
-	test_cmp expect actual
-'
-
-test_expect_success '%(contents:trailers:unfold) unfolds trailers' '
-	git for-each-ref --format="%(contents:trailers:unfold)" refs/heads/master >actual &&
-	{
-		unfold <trailers
-		echo
-	} >expect &&
-	test_cmp expect actual
-'
-
-test_expect_success '%(contents:trailers:only) shows only "key: value" trailers' '
-	git for-each-ref --format="%(contents:trailers:only)" refs/heads/master >actual &&
-	{
-		grep -v patch.description <trailers &&
-		echo
-	} >expect &&
-	test_cmp expect actual
-'
-
-test_expect_success '%(contents:trailers:only) and %(contents:trailers:unfold) work together' '
+	test_cmp expect actual &&
+	git for-each-ref --format="%(trailers:unfold,only)" refs/heads/master >actual &&
+	test_cmp actual actual &&
 	git for-each-ref --format="%(contents:trailers:only,unfold)" refs/heads/master >actual &&
-	git for-each-ref --format="%(contents:trailers:unfold,only)" refs/heads/master >reverse &&
-	test_cmp actual reverse &&
-	{
-		grep -v patch.description <trailers | unfold &&
-		echo
-	} >expect &&
-	test_cmp expect actual
+	test_cmp expect actual &&
+	git for-each-ref --format="%(contents:trailers:unfold,only)" refs/heads/master >actual &&
+	test_cmp actual actual
 '
 
 test_expect_success '%(trailers) rejects unknown trailers arguments' '
@@ -839,15 +818,16 @@
 	fatal: unknown %(trailers) argument: unsupported
 	EOF
 	test_must_fail git for-each-ref --format="%(trailers:unsupported)" 2>actual &&
+	test_i18ncmp expect actual &&
+	test_must_fail git for-each-ref --format="%(contents:trailers:unsupported)" 2>actual &&
 	test_i18ncmp expect actual
 '
 
-test_expect_success '%(contents:trailers) rejects unknown trailers arguments' '
-	# error message cannot be checked under i18n
+test_expect_success 'if arguments, %(contents:trailers) shows error if colon is missing' '
 	cat >expect <<-EOF &&
-	fatal: unknown %(trailers) argument: unsupported
+	fatal: unrecognized %(contents) argument: trailersonly
 	EOF
-	test_must_fail git for-each-ref --format="%(contents:trailers:unsupported)" 2>actual &&
+	test_must_fail git for-each-ref --format="%(contents:trailersonly)" 2>actual &&
 	test_i18ncmp expect actual
 '
 
diff --git a/t/t7401-submodule-summary.sh b/t/t7401-submodule-summary.sh
index 9bc841d..cc87d26 100755
--- a/t/t7401-submodule-summary.sh
+++ b/t/t7401-submodule-summary.sh
@@ -5,8 +5,11 @@
 
 test_description='Summary support for submodules
 
-This test tries to verify the sanity of summary subcommand of git submodule.
+This test script tries to verify the sanity of summary subcommand of git submodule.
 '
+# NEEDSWORK: This test script is old fashioned and may need a big cleanup due to
+# various reasons, one of them being that there are lots of commands taking place
+# outside of 'test_expect_success' block, which is no longer in good-style.
 
 . ./test-lib.sh
 
@@ -16,12 +19,12 @@
 	owd=$(pwd)
 	cd "$sm"
 	for name; do
-		echo "$name" > "$name" &&
+		echo "$name" >"$name" &&
 		git add "$name" &&
 		test_tick &&
 		git commit -m "Add $name"
 	done >/dev/null
-	git rev-parse --verify HEAD | cut -c1-7
+	git rev-parse --short HEAD
 	cd "$owd"
 }
 commit_file () {
@@ -38,10 +41,10 @@
 	git add sm1 &&
 	git submodule summary >actual &&
 	cat >expected <<-EOF &&
-* sm1 0000000...$head1 (2):
-  > Add foo2
+	* sm1 0000000...$head1 (2):
+	  > Add foo2
 
-EOF
+	EOF
 	test_cmp expected actual
 "
 
@@ -52,10 +55,10 @@
 		git submodule summary >../actual
 	) &&
 	cat >expected <<-EOF &&
-* ../sm1 0000000...$head1 (2):
-  > Add foo2
+	* ../sm1 0000000...$head1 (2):
+	  > Add foo2
 
-EOF
+	EOF
 	test_cmp expected actual
 "
 
@@ -73,10 +76,10 @@
 		git submodule summary ../sm1 >../actual
 	) &&
 	cat >expected <<-EOF &&
-* ../sm1 0000000...$head1 (2):
-  > Add foo2
+	* ../sm1 0000000...$head1 (2):
+	  > Add foo2
 
-EOF
+	EOF
 	test_cmp expected actual
 "
 
@@ -86,20 +89,20 @@
 test_expect_success 'modified submodule(forward)' "
 	git submodule summary >actual &&
 	cat >expected <<-EOF &&
-* sm1 $head1...$head2 (1):
-  > Add foo3
+	* sm1 $head1...$head2 (1):
+	  > Add foo3
 
-EOF
+	EOF
 	test_cmp expected actual
 "
 
 test_expect_success 'modified submodule(forward), --files' "
 	git submodule summary --files >actual &&
 	cat >expected <<-EOF &&
-* sm1 $head1...$head2 (1):
-  > Add foo3
+	* sm1 $head1...$head2 (1):
+	  > Add foo3
 
-EOF
+	EOF
 	test_cmp expected actual
 "
 
@@ -110,10 +113,10 @@
 	git config diff.ignoreSubmodules all &&
 	git submodule summary >actual &&
 	cat >expected <<-EOF &&
-* sm1 $head1...$head2 (1):
-  > Add foo3
+	* sm1 $head1...$head2 (1):
+	  > Add foo3
 
-EOF
+	EOF
 	test_cmp expected actual &&
 	git config --unset diff.ignoreSubmodules &&
 	git config --remove-section submodule.sm1 &&
@@ -125,17 +128,17 @@
 head3=$(
 	cd sm1 &&
 	git reset --hard HEAD~2 >/dev/null &&
-	git rev-parse --verify HEAD | cut -c1-7
+	git rev-parse --short HEAD
 )
 
 test_expect_success 'modified submodule(backward)' "
 	git submodule summary >actual &&
 	cat >expected <<-EOF &&
-* sm1 $head2...$head3 (2):
-  < Add foo3
-  < Add foo2
+	* sm1 $head2...$head3 (2):
+	  < Add foo3
+	  < Add foo2
 
-EOF
+	EOF
 	test_cmp expected actual
 "
 
@@ -144,25 +147,25 @@
 test_expect_success 'modified submodule(backward and forward)' "
 	git submodule summary >actual &&
 	cat >expected <<-EOF &&
-* sm1 $head2...$head4 (4):
-  > Add foo5
-  > Add foo4
-  < Add foo3
-  < Add foo2
+	* sm1 $head2...$head4 (4):
+	  > Add foo5
+	  > Add foo4
+	  < Add foo3
+	  < Add foo2
 
-EOF
+	EOF
 	test_cmp expected actual
 "
 
 test_expect_success '--summary-limit' "
 	git submodule summary -n 3 >actual &&
 	cat >expected <<-EOF &&
-* sm1 $head2...$head4 (4):
-  > Add foo5
-  > Add foo4
-  < Add foo3
+	* sm1 $head2...$head4 (4):
+	  > Add foo5
+	  > Add foo4
+	  < Add foo3
 
-EOF
+	EOF
 	test_cmp expected actual
 "
 
@@ -177,21 +180,21 @@
 test_expect_success 'typechanged submodule(submodule->blob), --cached' "
 	git submodule summary --cached >actual &&
 	cat >expected <<-EOF &&
-* sm1 $head4(submodule)->$head5(blob) (3):
-  < Add foo5
+	* sm1 $head4(submodule)->$head5(blob) (3):
+	  < Add foo5
 
-EOF
-	test_i18ncmp actual expected
+	EOF
+	test_i18ncmp expected actual
 "
 
 test_expect_success 'typechanged submodule(submodule->blob), --files' "
 	git submodule summary --files >actual &&
 	cat >expected <<-EOF &&
-* sm1 $head5(blob)->$head4(submodule) (3):
-  > Add foo5
+	* sm1 $head5(blob)->$head4(submodule) (3):
+	  > Add foo5
 
-EOF
-	test_i18ncmp actual expected
+	EOF
+	test_i18ncmp expected actual
 "
 
 rm -rf sm1 &&
@@ -199,10 +202,10 @@
 test_expect_success 'typechanged submodule(submodule->blob)' "
 	git submodule summary >actual &&
 	cat >expected <<-EOF &&
-* sm1 $head4(submodule)->$head5(blob):
+	* sm1 $head4(submodule)->$head5(blob):
 
-EOF
-	test_i18ncmp actual expected
+	EOF
+	test_i18ncmp expected actual
 "
 
 rm -f sm1 &&
@@ -211,21 +214,21 @@
 test_expect_success 'nonexistent commit' "
 	git submodule summary >actual &&
 	cat >expected <<-EOF &&
-* sm1 $head4...$head6:
-  Warn: sm1 doesn't contain commit $head4_full
+	* sm1 $head4...$head6:
+	  Warn: sm1 doesn't contain commit $head4_full
 
-EOF
-	test_i18ncmp actual expected
+	EOF
+	test_i18ncmp expected actual
 "
 
 commit_file
 test_expect_success 'typechanged submodule(blob->submodule)' "
 	git submodule summary >actual &&
 	cat >expected <<-EOF &&
-* sm1 $head5(blob)->$head6(submodule) (2):
-  > Add foo7
+	* sm1 $head5(blob)->$head6(submodule) (2):
+	  > Add foo7
 
-EOF
+	EOF
 	test_i18ncmp expected actual
 "
 
@@ -234,9 +237,9 @@
 test_expect_success 'deleted submodule' "
 	git submodule summary >actual &&
 	cat >expected <<-EOF &&
-* sm1 $head6...0000000:
+	* sm1 $head6...0000000:
 
-EOF
+	EOF
 	test_cmp expected actual
 "
 
@@ -249,22 +252,22 @@
 test_expect_success 'multiple submodules' "
 	git submodule summary >actual &&
 	cat >expected <<-EOF &&
-* sm1 $head6...0000000:
+	* sm1 $head6...0000000:
 
-* sm2 0000000...$head7 (2):
-  > Add foo9
+	* sm2 0000000...$head7 (2):
+	  > Add foo9
 
-EOF
+	EOF
 	test_cmp expected actual
 "
 
 test_expect_success 'path filter' "
 	git submodule summary sm2 >actual &&
 	cat >expected <<-EOF &&
-* sm2 0000000...$head7 (2):
-  > Add foo9
+	* sm2 0000000...$head7 (2):
+	  > Add foo9
 
-EOF
+	EOF
 	test_cmp expected actual
 "
 
@@ -272,24 +275,24 @@
 test_expect_success 'given commit' "
 	git submodule summary HEAD^ >actual &&
 	cat >expected <<-EOF &&
-* sm1 $head6...0000000:
+	* sm1 $head6...0000000:
 
-* sm2 0000000...$head7 (2):
-  > Add foo9
+	* sm2 0000000...$head7 (2):
+	  > Add foo9
 
-EOF
+	EOF
 	test_cmp expected actual
 "
 
 test_expect_success '--for-status' "
 	git submodule summary --for-status HEAD^ >actual &&
-	test_i18ncmp actual - <<EOF
-* sm1 $head6...0000000:
+	test_i18ncmp - actual <<-EOF
+	* sm1 $head6...0000000:
 
-* sm2 0000000...$head7 (2):
-  > Add foo9
+	* sm2 0000000...$head7 (2):
+	  > Add foo9
 
-EOF
+	EOF
 "
 
 test_expect_success 'fail when using --files together with --cached' "
diff --git a/t/t7518-ident-corner-cases.sh b/t/t7518-ident-corner-cases.sh
index b22f631..dc3e9c8 100755
--- a/t/t7518-ident-corner-cases.sh
+++ b/t/t7518-ident-corner-cases.sh
@@ -29,7 +29,18 @@
 		sane_unset GIT_AUTHOR_NAME &&
 		test_must_fail \
 			git -c user.name= commit --allow-empty -m foo 2>err &&
-		test_i18ngrep "empty ident name" err
+		test_i18ngrep "empty ident name" err &&
+		test_i18ngrep "Author identity unknown" err
+	)
+'
+
+test_expect_success 'empty configured name does not auto-detect for committer' '
+	(
+		sane_unset GIT_COMMITTER_NAME &&
+		test_must_fail \
+			git -c user.name= commit --allow-empty -m foo 2>err &&
+		test_i18ngrep "empty ident name" err &&
+		test_i18ngrep "Committer identity unknown" err
 	)
 '
 
diff --git a/t/t9010-svn-fe.sh b/t/t9010-svn-fe.sh
deleted file mode 100755
index 83f8f5c..0000000
--- a/t/t9010-svn-fe.sh
+++ /dev/null
@@ -1,1105 +0,0 @@
-#!/bin/sh
-
-test_description='check svn dumpfile importer'
-
-. ./test-lib.sh
-
-if test_have_prereq !PIPE
-then
-	skip_all="svn dumpfile importer testing requires the PIPE prerequisite"
-	test_done
-fi
-
-reinit_git () {
-	rm -fr .git &&
-	rm -f stream backflow &&
-	git init &&
-	mkfifo stream backflow
-}
-
-try_dump () {
-	input=$1 &&
-	maybe_fail_svnfe=${2:+test_$2} &&
-	maybe_fail_fi=${3:+test_$3} &&
-
-	{
-		$maybe_fail_svnfe test-svn-fe "$input" >stream 3<backflow &
-	} &&
-	$maybe_fail_fi git fast-import --cat-blob-fd=3 <stream 3>backflow &&
-	wait $!
-}
-
-properties () {
-	while test "$#" -ne 0
-	do
-		property="$1" &&
-		value="$2" &&
-		printf "%s\n" "K ${#property}" &&
-		printf "%s\n" "$property" &&
-		printf "%s\n" "V ${#value}" &&
-		printf "%s\n" "$value" &&
-		shift 2 ||
-		return 1
-	done
-}
-
-text_no_props () {
-	text="$1
-" &&
-	printf "%s\n" "Prop-content-length: 10" &&
-	printf "%s\n" "Text-content-length: ${#text}" &&
-	printf "%s\n" "Content-length: $((${#text} + 10))" &&
-	printf "%s\n" "" "PROPS-END" &&
-	printf "%s\n" "$text"
-}
-
-test_expect_success 'empty dump' '
-	reinit_git &&
-	echo "SVN-fs-dump-format-version: 2" >input &&
-	try_dump input
-'
-
-test_expect_success 'v4 dumps not supported' '
-	reinit_git &&
-	echo "SVN-fs-dump-format-version: 4" >v4.dump &&
-	try_dump v4.dump must_fail
-'
-
-test_expect_failure 'empty revision' '
-	reinit_git &&
-	printf "rev <nobody, nobody@local>: %s\n" "" "" >expect &&
-	cat >emptyrev.dump <<-\EOF &&
-	SVN-fs-dump-format-version: 3
-
-	Revision-number: 1
-	Prop-content-length: 0
-	Content-length: 0
-
-	Revision-number: 2
-	Prop-content-length: 0
-	Content-length: 0
-
-	EOF
-	try_dump emptyrev.dump &&
-	git log -p --format="rev <%an, %ae>: %s" HEAD >actual &&
-	test_cmp expect actual
-'
-
-test_expect_success 'empty properties' '
-	reinit_git &&
-	printf "rev <nobody, nobody@local>: %s\n" "" "" >expect &&
-	cat >emptyprop.dump <<-\EOF &&
-	SVN-fs-dump-format-version: 3
-
-	Revision-number: 1
-	Prop-content-length: 10
-	Content-length: 10
-
-	PROPS-END
-
-	Revision-number: 2
-	Prop-content-length: 10
-	Content-length: 10
-
-	PROPS-END
-	EOF
-	try_dump emptyprop.dump &&
-	git log -p --format="rev <%an, %ae>: %s" HEAD >actual &&
-	test_cmp expect actual
-'
-
-test_expect_success 'author name and commit message' '
-	reinit_git &&
-	echo "<author@example.com, author@example.com@local>" >expect.author &&
-	cat >message <<-\EOF &&
-	A concise summary of the change
-
-	A detailed description of the change, why it is needed, what
-	was broken and why applying this is the best course of action.
-
-	* file.c
-	    Details pertaining to an individual file.
-	EOF
-	{
-		properties \
-			svn:author author@example.com \
-			svn:log "$(cat message)" &&
-		echo PROPS-END
-	} >props &&
-	{
-		echo "SVN-fs-dump-format-version: 3" &&
-		echo &&
-		echo "Revision-number: 1" &&
-		echo Prop-content-length: $(wc -c <props) &&
-		echo Content-length: $(wc -c <props) &&
-		echo &&
-		cat props
-	} >log.dump &&
-	try_dump log.dump &&
-	git log -p --format="%B" HEAD >actual.log &&
-	git log --format="<%an, %ae>" >actual.author &&
-	test_cmp message actual.log &&
-	test_cmp expect.author actual.author
-'
-
-test_expect_success 'unsupported properties are ignored' '
-	reinit_git &&
-	echo author >expect &&
-	cat >extraprop.dump <<-\EOF &&
-	SVN-fs-dump-format-version: 3
-
-	Revision-number: 1
-	Prop-content-length: 56
-	Content-length: 56
-
-	K 8
-	nonsense
-	V 1
-	y
-	K 10
-	svn:author
-	V 6
-	author
-	PROPS-END
-	EOF
-	try_dump extraprop.dump &&
-	git log -p --format=%an HEAD >actual &&
-	test_cmp expect actual
-'
-
-test_expect_failure 'timestamp and empty file' '
-	echo author@example.com >expect.author &&
-	echo 1999-01-01 >expect.date &&
-	echo file >expect.files &&
-	reinit_git &&
-	{
-		properties \
-			svn:author author@example.com \
-			svn:date "1999-01-01T00:01:002.000000Z" \
-			svn:log "add empty file" &&
-		echo PROPS-END
-	} >props &&
-	{
-		cat <<-EOF &&
-		SVN-fs-dump-format-version: 3
-
-		Revision-number: 1
-		EOF
-		echo Prop-content-length: $(wc -c <props) &&
-		echo Content-length: $(wc -c <props) &&
-		echo &&
-		cat props &&
-		cat <<-\EOF
-
-		Node-path: empty-file
-		Node-kind: file
-		Node-action: add
-		Content-length: 0
-
-		EOF
-	} >emptyfile.dump &&
-	try_dump emptyfile.dump &&
-	git log --format=%an HEAD >actual.author &&
-	git log --date=short --format=%ad HEAD >actual.date &&
-	git ls-tree -r --name-only HEAD >actual.files &&
-	test_cmp expect.author actual.author &&
-	test_cmp expect.date actual.date &&
-	test_cmp expect.files actual.files &&
-	git checkout HEAD empty-file &&
-	test_must_be_empty file
-'
-
-test_expect_success 'directory with files' '
-	reinit_git &&
-	printf "%s\n" directory/file1 directory/file2 >expect.files &&
-	echo hi >hi &&
-	echo hello >hello &&
-	{
-		properties \
-			svn:author author@example.com \
-			svn:date "1999-02-01T00:01:002.000000Z" \
-			svn:log "add directory with some files in it" &&
-		echo PROPS-END
-	} >props &&
-	{
-		cat <<-EOF &&
-		SVN-fs-dump-format-version: 3
-
-		Revision-number: 1
-		EOF
-		echo Prop-content-length: $(wc -c <props) &&
-		echo Content-length: $(wc -c <props) &&
-		echo &&
-		cat props &&
-		cat <<-\EOF &&
-
-		Node-path: directory
-		Node-kind: dir
-		Node-action: add
-		Prop-content-length: 10
-		Content-length: 10
-
-		PROPS-END
-
-		Node-path: directory/file1
-		Node-kind: file
-		Node-action: add
-		EOF
-		text_no_props hello &&
-		cat <<-\EOF &&
-		Node-path: directory/file2
-		Node-kind: file
-		Node-action: add
-		EOF
-		text_no_props hi
-	} >directory.dump &&
-	try_dump directory.dump &&
-
-	git ls-tree -r --name-only HEAD >actual.files &&
-	git checkout HEAD directory &&
-	test_cmp expect.files actual.files &&
-	test_cmp hello directory/file1 &&
-	test_cmp hi directory/file2
-'
-
-test_expect_success 'branch name with backslash' '
-	reinit_git &&
-	sort <<-\EOF >expect.branch-files &&
-	trunk/file1
-	trunk/file2
-	"branches/UpdateFOPto094\\/file1"
-	"branches/UpdateFOPto094\\/file2"
-	EOF
-
-	echo hi >hi &&
-	echo hello >hello &&
-	{
-		properties \
-			svn:author author@example.com \
-			svn:date "1999-02-02T00:01:02.000000Z" \
-			svn:log "add directory with some files in it" &&
-		echo PROPS-END
-	} >props.setup &&
-	{
-		properties \
-			svn:author brancher@example.com \
-			svn:date "2007-12-06T21:38:34.000000Z" \
-			svn:log "Updating fop to .94 and adjust fo-stylesheets" &&
-		echo PROPS-END
-	} >props.branch &&
-	{
-		cat <<-EOF &&
-		SVN-fs-dump-format-version: 3
-
-		Revision-number: 1
-		EOF
-		echo Prop-content-length: $(wc -c <props.setup) &&
-		echo Content-length: $(wc -c <props.setup) &&
-		echo &&
-		cat props.setup &&
-		cat <<-\EOF &&
-
-		Node-path: trunk
-		Node-kind: dir
-		Node-action: add
-		Prop-content-length: 10
-		Content-length: 10
-
-		PROPS-END
-
-		Node-path: branches
-		Node-kind: dir
-		Node-action: add
-		Prop-content-length: 10
-		Content-length: 10
-
-		PROPS-END
-
-		Node-path: trunk/file1
-		Node-kind: file
-		Node-action: add
-		EOF
-		text_no_props hello &&
-		cat <<-\EOF &&
-		Node-path: trunk/file2
-		Node-kind: file
-		Node-action: add
-		EOF
-		text_no_props hi &&
-		cat <<-\EOF &&
-
-		Revision-number: 2
-		EOF
-		echo Prop-content-length: $(wc -c <props.branch) &&
-		echo Content-length: $(wc -c <props.branch) &&
-		echo &&
-		cat props.branch &&
-		cat <<-\EOF
-
-		Node-path: branches/UpdateFOPto094\
-		Node-kind: dir
-		Node-action: add
-		Node-copyfrom-rev: 1
-		Node-copyfrom-path: trunk
-
-		Node-kind: dir
-		Node-action: add
-		Prop-content-length: 34
-		Content-length: 34
-
-		K 13
-		svn:mergeinfo
-		V 0
-
-		PROPS-END
-		EOF
-	} >branch.dump &&
-	try_dump branch.dump &&
-
-	git ls-tree -r --name-only HEAD |
-	sort >actual.branch-files &&
-	test_cmp expect.branch-files actual.branch-files
-'
-
-test_expect_success 'node without action' '
-	reinit_git &&
-	cat >inaction.dump <<-\EOF &&
-	SVN-fs-dump-format-version: 3
-
-	Revision-number: 1
-	Prop-content-length: 10
-	Content-length: 10
-
-	PROPS-END
-
-	Node-path: directory
-	Node-kind: dir
-	Prop-content-length: 10
-	Content-length: 10
-
-	PROPS-END
-	EOF
-	try_dump inaction.dump must_fail
-'
-
-test_expect_success 'action: add node without text' '
-	reinit_git &&
-	cat >textless.dump <<-\EOF &&
-	SVN-fs-dump-format-version: 3
-
-	Revision-number: 1
-	Prop-content-length: 10
-	Content-length: 10
-
-	PROPS-END
-
-	Node-path: textless
-	Node-kind: file
-	Node-action: add
-	Prop-content-length: 10
-	Content-length: 10
-
-	PROPS-END
-	EOF
-	try_dump textless.dump must_fail
-'
-
-test_expect_failure 'change file mode but keep old content' '
-	reinit_git &&
-	cat >expect <<-\EOF &&
-	OBJID
-	:120000 100644 OBJID OBJID T	greeting
-	OBJID
-	:100644 120000 OBJID OBJID T	greeting
-	OBJID
-	:000000 100644 OBJID OBJID A	greeting
-	EOF
-	echo "link hello" >expect.blob &&
-	echo hello >hello &&
-	cat >filemode.dump <<-\EOF &&
-	SVN-fs-dump-format-version: 3
-
-	Revision-number: 1
-	Prop-content-length: 10
-	Content-length: 10
-
-	PROPS-END
-
-	Node-path: greeting
-	Node-kind: file
-	Node-action: add
-	Prop-content-length: 10
-	Text-content-length: 11
-	Content-length: 21
-
-	PROPS-END
-	link hello
-
-	Revision-number: 2
-	Prop-content-length: 10
-	Content-length: 10
-
-	PROPS-END
-
-	Node-path: greeting
-	Node-kind: file
-	Node-action: change
-	Prop-content-length: 33
-	Content-length: 33
-
-	K 11
-	svn:special
-	V 1
-	*
-	PROPS-END
-
-	Revision-number: 3
-	Prop-content-length: 10
-	Content-length: 10
-
-	PROPS-END
-
-	Node-path: greeting
-	Node-kind: file
-	Node-action: change
-	Prop-content-length: 10
-	Content-length: 10
-
-	PROPS-END
-	EOF
-	try_dump filemode.dump &&
-	{
-		git rev-list HEAD |
-		git diff-tree --root --stdin |
-		sed "s/$OID_REGEX/OBJID/g"
-	} >actual &&
-	git show HEAD:greeting >actual.blob &&
-	git show HEAD^:greeting >actual.target &&
-	test_cmp expect actual &&
-	test_cmp expect.blob actual.blob &&
-	test_cmp hello actual.target
-'
-
-test_expect_success 'NUL in property value' '
-	reinit_git &&
-	echo "commit message" >expect.message &&
-	{
-		properties \
-			unimportant "something with a NUL (Q)" \
-			svn:log "commit message" &&
-		echo PROPS-END
-	} |
-	q_to_nul >props &&
-	{
-		cat <<-\EOF &&
-		SVN-fs-dump-format-version: 3
-
-		Revision-number: 1
-		EOF
-		echo Prop-content-length: $(wc -c <props) &&
-		echo Content-length: $(wc -c <props) &&
-		echo &&
-		cat props
-	} >nulprop.dump &&
-	try_dump nulprop.dump &&
-	git diff-tree --always -s --format=%s HEAD >actual.message &&
-	test_cmp expect.message actual.message
-'
-
-test_expect_success 'NUL in log message, file content, and property name' '
-	# Caveat: svnadmin 1.6.16 (r1073529) truncates at \0 in the
-	# svn:specialQnotreally example.
-	reinit_git &&
-	cat >expect <<-\EOF &&
-	OBJID
-	:100644 100644 OBJID OBJID M	greeting
-	OBJID
-	:000000 100644 OBJID OBJID A	greeting
-	EOF
-	printf "\n%s\n" "something with an ASCII NUL (Q)" >expect.message &&
-	printf "%s\n" "helQo" >expect.hello1 &&
-	printf "%s\n" "link hello" >expect.hello2 &&
-	{
-		properties svn:log "something with an ASCII NUL (Q)" &&
-		echo PROPS-END
-	} |
-	q_to_nul >props &&
-	{
-		q_to_nul <<-\EOF &&
-		SVN-fs-dump-format-version: 3
-
-		Revision-number: 1
-		Prop-content-length: 10
-		Content-length: 10
-
-		PROPS-END
-
-		Node-path: greeting
-		Node-kind: file
-		Node-action: add
-		Prop-content-length: 10
-		Text-content-length: 6
-		Content-length: 16
-
-		PROPS-END
-		helQo
-
-		Revision-number: 2
-		EOF
-		echo Prop-content-length: $(wc -c <props) &&
-		echo Content-length: $(wc -c <props) &&
-		echo &&
-		cat props &&
-		q_to_nul <<-\EOF
-
-		Node-path: greeting
-		Node-kind: file
-		Node-action: change
-		Prop-content-length: 43
-		Text-content-length: 11
-		Content-length: 54
-
-		K 21
-		svn:specialQnotreally
-		V 1
-		*
-		PROPS-END
-		link hello
-		EOF
-	} >8bitclean.dump &&
-	try_dump 8bitclean.dump &&
-	{
-		git rev-list HEAD |
-		git diff-tree --root --stdin |
-		sed "s/$OID_REGEX/OBJID/g"
-	} >actual &&
-	{
-		git cat-file commit HEAD | nul_to_q &&
-		echo
-	} |
-	sed -ne "/^\$/,\$ p" >actual.message &&
-	git cat-file blob HEAD^:greeting | nul_to_q >actual.hello1 &&
-	git cat-file blob HEAD:greeting | nul_to_q >actual.hello2 &&
-	test_cmp expect actual &&
-	test_cmp expect.message actual.message &&
-	test_cmp expect.hello1 actual.hello1 &&
-	test_cmp expect.hello2 actual.hello2
-'
-
-test_expect_success 'change file mode and reiterate content' '
-	reinit_git &&
-	cat >expect <<-\EOF &&
-	OBJID
-	:120000 100644 OBJID OBJID T	greeting
-	OBJID
-	:100644 120000 OBJID OBJID T	greeting
-	OBJID
-	:000000 100644 OBJID OBJID A	greeting
-	EOF
-	echo "link hello" >expect.blob &&
-	echo hello >hello &&
-	cat >filemode2.dump <<-\EOF &&
-	SVN-fs-dump-format-version: 3
-
-	Revision-number: 1
-	Prop-content-length: 10
-	Content-length: 10
-
-	PROPS-END
-
-	Node-path: greeting
-	Node-kind: file
-	Node-action: add
-	Prop-content-length: 10
-	Text-content-length: 11
-	Content-length: 21
-
-	PROPS-END
-	link hello
-
-	Revision-number: 2
-	Prop-content-length: 10
-	Content-length: 10
-
-	PROPS-END
-
-	Node-path: greeting
-	Node-kind: file
-	Node-action: change
-	Prop-content-length: 33
-	Text-content-length: 11
-	Content-length: 44
-
-	K 11
-	svn:special
-	V 1
-	*
-	PROPS-END
-	link hello
-
-	Revision-number: 3
-	Prop-content-length: 10
-	Content-length: 10
-
-	PROPS-END
-
-	Node-path: greeting
-	Node-kind: file
-	Node-action: change
-	Prop-content-length: 10
-	Text-content-length: 11
-	Content-length: 21
-
-	PROPS-END
-	link hello
-	EOF
-	try_dump filemode2.dump &&
-	{
-		git rev-list HEAD |
-		git diff-tree --root --stdin |
-		sed "s/$OID_REGEX/OBJID/g"
-	} >actual &&
-	git show HEAD:greeting >actual.blob &&
-	git show HEAD^:greeting >actual.target &&
-	test_cmp expect actual &&
-	test_cmp expect.blob actual.blob &&
-	test_cmp hello actual.target
-'
-
-test_expect_success 'deltas supported' '
-	reinit_git &&
-	{
-		# (old) h + (inline) ello + (old) \n
-		printf "SVNQ%b%b%s" "Q\003\006\005\004" "\001Q\0204\001\002" "ello" |
-		q_to_nul
-	} >delta &&
-	{
-		properties \
-			svn:author author@example.com \
-			svn:date "1999-01-05T00:01:002.000000Z" \
-			svn:log "add greeting" &&
-		echo PROPS-END
-	} >props &&
-	{
-		properties \
-			svn:author author@example.com \
-			svn:date "1999-01-06T00:01:002.000000Z" \
-			svn:log "change it" &&
-		echo PROPS-END
-	} >props2 &&
-	{
-		echo SVN-fs-dump-format-version: 3 &&
-		echo &&
-		echo Revision-number: 1 &&
-		echo Prop-content-length: $(wc -c <props) &&
-		echo Content-length: $(wc -c <props) &&
-		echo &&
-		cat props &&
-		cat <<-\EOF &&
-
-		Node-path: hello
-		Node-kind: file
-		Node-action: add
-		Prop-content-length: 10
-		Text-content-length: 3
-		Content-length: 13
-
-		PROPS-END
-		hi
-
-		EOF
-		echo Revision-number: 2 &&
-		echo Prop-content-length: $(wc -c <props2) &&
-		echo Content-length: $(wc -c <props2) &&
-		echo &&
-		cat props2 &&
-		cat <<-\EOF &&
-
-		Node-path: hello
-		Node-kind: file
-		Node-action: change
-		Text-delta: true
-		Prop-content-length: 10
-		EOF
-		echo Text-content-length: $(wc -c <delta) &&
-		echo Content-length: $((10 + $(wc -c <delta))) &&
-		echo &&
-		echo PROPS-END &&
-		cat delta
-	} >delta.dump &&
-	try_dump delta.dump
-'
-
-test_expect_success 'property deltas supported' '
-	reinit_git &&
-	cat >expect <<-\EOF &&
-	OBJID
-	:100755 100644 OBJID OBJID M	script.sh
-	EOF
-	{
-		properties \
-			svn:author author@example.com \
-			svn:date "1999-03-06T00:01:002.000000Z" \
-			svn:log "make an executable, or chmod -x it" &&
-		echo PROPS-END
-	} >revprops &&
-	{
-		echo SVN-fs-dump-format-version: 3 &&
-		echo &&
-		echo Revision-number: 1 &&
-		echo Prop-content-length: $(wc -c <revprops) &&
-		echo Content-length: $(wc -c <revprops) &&
-		echo &&
-		cat revprops &&
-		echo &&
-		cat <<-\EOF &&
-		Node-path: script.sh
-		Node-kind: file
-		Node-action: add
-		Text-content-length: 0
-		Prop-content-length: 39
-		Content-length: 39
-
-		K 14
-		svn:executable
-		V 4
-		true
-		PROPS-END
-
-		EOF
-		echo Revision-number: 2 &&
-		echo Prop-content-length: $(wc -c <revprops) &&
-		echo Content-length: $(wc -c <revprops) &&
-		echo &&
-		cat revprops &&
-		echo &&
-		cat <<-\EOF
-		Node-path: script.sh
-		Node-kind: file
-		Node-action: change
-		Prop-delta: true
-		Prop-content-length: 30
-		Content-length: 30
-
-		D 14
-		svn:executable
-		PROPS-END
-		EOF
-	} >propdelta.dump &&
-	try_dump propdelta.dump &&
-	{
-		git rev-list HEAD |
-		git diff-tree --stdin |
-		sed "s/$OID_REGEX/OBJID/g"
-	} >actual &&
-	test_cmp expect actual
-'
-
-test_expect_success 'properties on /' '
-	reinit_git &&
-	cat <<-\EOF >expect &&
-	OBJID
-	OBJID
-	:000000 100644 OBJID OBJID A	greeting
-	EOF
-	sed -e "s/X$//" <<-\EOF >changeroot.dump &&
-	SVN-fs-dump-format-version: 3
-
-	Revision-number: 1
-	Prop-content-length: 10
-	Content-length: 10
-
-	PROPS-END
-
-	Node-path: greeting
-	Node-kind: file
-	Node-action: add
-	Text-content-length: 0
-	Prop-content-length: 10
-	Content-length: 10
-
-	PROPS-END
-
-	Revision-number: 2
-	Prop-content-length: 10
-	Content-length: 10
-
-	PROPS-END
-
-	Node-path: X
-	Node-kind: dir
-	Node-action: change
-	Prop-delta: true
-	Prop-content-length: 43
-	Content-length: 43
-
-	K 10
-	svn:ignore
-	V 11
-	build-area
-
-	PROPS-END
-	EOF
-	try_dump changeroot.dump &&
-	{
-		git rev-list HEAD |
-		git diff-tree --root --always --stdin |
-		sed "s/$OID_REGEX/OBJID/g"
-	} >actual &&
-	test_cmp expect actual
-'
-
-test_expect_success 'deltas for typechange' '
-	reinit_git &&
-	cat >expect <<-\EOF &&
-	OBJID
-	:120000 100644 OBJID OBJID T	test-file
-	OBJID
-	:100755 120000 OBJID OBJID T	test-file
-	OBJID
-	:000000 100755 OBJID OBJID A	test-file
-	EOF
-	cat >deleteprop.dump <<-\EOF &&
-	SVN-fs-dump-format-version: 3
-
-	Revision-number: 1
-	Prop-content-length: 10
-	Content-length: 10
-
-	PROPS-END
-
-	Node-path: test-file
-	Node-kind: file
-	Node-action: add
-	Prop-delta: true
-	Prop-content-length: 35
-	Text-content-length: 17
-	Content-length: 52
-
-	K 14
-	svn:executable
-	V 0
-
-	PROPS-END
-	link testing 123
-
-	Revision-number: 2
-	Prop-content-length: 10
-	Content-length: 10
-
-	PROPS-END
-
-	Node-path: test-file
-	Node-kind: file
-	Node-action: change
-	Prop-delta: true
-	Prop-content-length: 53
-	Text-content-length: 17
-	Content-length: 70
-
-	K 11
-	svn:special
-	V 1
-	*
-	D 14
-	svn:executable
-	PROPS-END
-	link testing 231
-
-	Revision-number: 3
-	Prop-content-length: 10
-	Content-length: 10
-
-	PROPS-END
-
-	Node-path: test-file
-	Node-kind: file
-	Node-action: change
-	Prop-delta: true
-	Prop-content-length: 27
-	Text-content-length: 17
-	Content-length: 44
-
-	D 11
-	svn:special
-	PROPS-END
-	link testing 321
-	EOF
-	try_dump deleteprop.dump &&
-	{
-		git rev-list HEAD |
-		git diff-tree --root --stdin |
-		sed "s/$OID_REGEX/OBJID/g"
-	} >actual &&
-	test_cmp expect actual
-'
-
-test_expect_success 'deltas need not consume the whole preimage' '
-	reinit_git &&
-	cat >expect <<-\EOF &&
-	OBJID
-	:120000 100644 OBJID OBJID T	postimage
-	OBJID
-	:100644 120000 OBJID OBJID T	postimage
-	OBJID
-	:000000 100644 OBJID OBJID A	postimage
-	EOF
-	echo "first preimage" >expect.1 &&
-	printf target >expect.2 &&
-	printf lnk >expect.3 &&
-	{
-		printf "SVNQ%b%b%b" "QQ\017\001\017" "\0217" "first preimage\n" |
-		q_to_nul
-	} >delta.1 &&
-	{
-		properties svn:special "*" &&
-		echo PROPS-END
-	} >symlink.props &&
-	{
-		printf "SVNQ%b%b%b" "Q\002\013\004\012" "\0201\001\001\0211" "lnk target" |
-		q_to_nul
-	} >delta.2 &&
-	{
-		printf "SVNQ%b%b" "Q\004\003\004Q" "\001Q\002\002" |
-		q_to_nul
-	} >delta.3 &&
-	{
-		cat <<-\EOF &&
-		SVN-fs-dump-format-version: 3
-
-		Revision-number: 1
-		Prop-content-length: 10
-		Content-length: 10
-
-		PROPS-END
-
-		Node-path: postimage
-		Node-kind: file
-		Node-action: add
-		Text-delta: true
-		Prop-content-length: 10
-		EOF
-		echo Text-content-length: $(wc -c <delta.1) &&
-		echo Content-length: $((10 + $(wc -c <delta.1))) &&
-		echo &&
-		echo PROPS-END &&
-		cat delta.1 &&
-		cat <<-\EOF &&
-
-		Revision-number: 2
-		Prop-content-length: 10
-		Content-length: 10
-
-		PROPS-END
-
-		Node-path: postimage
-		Node-kind: file
-		Node-action: change
-		Text-delta: true
-		EOF
-		echo Prop-content-length: $(wc -c <symlink.props) &&
-		echo Text-content-length: $(wc -c <delta.2) &&
-		echo Content-length: $(($(wc -c <symlink.props) + $(wc -c <delta.2))) &&
-		echo &&
-		cat symlink.props &&
-		cat delta.2 &&
-		cat <<-\EOF &&
-
-		Revision-number: 3
-		Prop-content-length: 10
-		Content-length: 10
-
-		PROPS-END
-
-		Node-path: postimage
-		Node-kind: file
-		Node-action: change
-		Text-delta: true
-		Prop-content-length: 10
-		EOF
-		echo Text-content-length: $(wc -c <delta.3) &&
-		echo Content-length: $((10 + $(wc -c <delta.3))) &&
-		echo &&
-		echo PROPS-END &&
-		cat delta.3 &&
-		echo
-	} >deltapartial.dump &&
-	try_dump deltapartial.dump &&
-	{
-		git rev-list HEAD |
-		git diff-tree --root --stdin |
-		sed "s/$OID_REGEX/OBJID/g"
-	} >actual &&
-	test_cmp expect actual &&
-	git show HEAD:postimage >actual.3 &&
-	git show HEAD^:postimage >actual.2 &&
-	git show HEAD^^:postimage >actual.1 &&
-	test_cmp expect.1 actual.1 &&
-	test_cmp expect.2 actual.2 &&
-	test_cmp expect.3 actual.3
-'
-
-test_expect_success 'no hang for delta trying to read past end of preimage' '
-	reinit_git &&
-	{
-		# COPY 1
-		printf "SVNQ%b%b" "Q\001\001\002Q" "\001Q" |
-		q_to_nul
-	} >greedy.delta &&
-	{
-		cat <<-\EOF &&
-		SVN-fs-dump-format-version: 3
-
-		Revision-number: 1
-		Prop-content-length: 10
-		Content-length: 10
-
-		PROPS-END
-
-		Node-path: bootstrap
-		Node-kind: file
-		Node-action: add
-		Text-delta: true
-		Prop-content-length: 10
-		EOF
-		echo Text-content-length: $(wc -c <greedy.delta) &&
-		echo Content-length: $((10 + $(wc -c <greedy.delta))) &&
-		echo &&
-		echo PROPS-END &&
-		cat greedy.delta &&
-		echo
-	} >greedydelta.dump &&
-	try_dump greedydelta.dump must_fail might_fail
-'
-
-test_expect_success 'set up svn repo' '
-	svnconf=$PWD/svnconf &&
-	mkdir -p "$svnconf" &&
-
-	if
-		svnadmin -h >/dev/null 2>&1 &&
-		svnadmin create simple-svn &&
-		svnadmin load simple-svn <"$TEST_DIRECTORY/t9135/svn.dump" &&
-		svn export --config-dir "$svnconf" "file://$PWD/simple-svn" simple-svnco
-	then
-		test_set_prereq SVNREPO
-	fi
-'
-
-test_expect_success SVNREPO 't9135/svn.dump' '
-	mkdir -p simple-git &&
-	(
-		cd simple-git &&
-		reinit_git &&
-		try_dump "$TEST_DIRECTORY/t9135/svn.dump"
-	) &&
-	(
-		cd simple-svnco &&
-		git init &&
-		git add . &&
-		git fetch ../simple-git master &&
-		git diff --exit-code FETCH_HEAD
-	)
-'
-
-test_done
diff --git a/t/t9011-svn-da.sh b/t/t9011-svn-da.sh
deleted file mode 100755
index ab1ef28..0000000
--- a/t/t9011-svn-da.sh
+++ /dev/null
@@ -1,248 +0,0 @@
-#!/bin/sh
-
-test_description='test parsing of svndiff0 files
-
-Using the "test-svn-fe -d" helper, check that svn-fe correctly
-interprets deltas using various facilities (some from the spec,
-some only learned from practice).
-'
-. ./test-lib.sh
-
->empty
-printf foo >preimage
-
-test_expect_success 'reject empty delta' '
-	test_must_fail test-svn-fe -d preimage empty 0
-'
-
-test_expect_success 'delta can empty file' '
-	printf "SVNQ" | q_to_nul >clear.delta &&
-	test-svn-fe -d preimage clear.delta 4 >actual &&
-	test_must_be_empty actual
-'
-
-test_expect_success 'reject svndiff2' '
-	printf "SVN\002" >bad.filetype &&
-	test_must_fail test-svn-fe -d preimage bad.filetype 4
-'
-
-test_expect_success 'one-window empty delta' '
-	printf "SVNQ%s" "QQQQQ" | q_to_nul >clear.onewindow &&
-	test-svn-fe -d preimage clear.onewindow 9 >actual &&
-	test_must_be_empty actual
-'
-
-test_expect_success 'reject incomplete window header' '
-	printf "SVNQ%s" "QQQQQ" | q_to_nul >clear.onewindow &&
-	printf "SVNQ%s" "QQ" | q_to_nul >clear.partialwindow &&
-	test_must_fail test-svn-fe -d preimage clear.onewindow 6 &&
-	test_must_fail test-svn-fe -d preimage clear.partialwindow 6
-'
-
-test_expect_success 'reject declared delta longer than actual delta' '
-	printf "SVNQ%s" "QQQQQ" | q_to_nul >clear.onewindow &&
-	printf "SVNQ%s" "QQ" | q_to_nul >clear.partialwindow &&
-	test_must_fail test-svn-fe -d preimage clear.onewindow 14 &&
-	test_must_fail test-svn-fe -d preimage clear.partialwindow 9
-'
-
-test_expect_success 'two-window empty delta' '
-	printf "SVNQ%s%s" "QQQQQ" "QQQQQ" | q_to_nul >clear.twowindow &&
-	test-svn-fe -d preimage clear.twowindow 14 >actual &&
-	test_must_fail test-svn-fe -d preimage clear.twowindow 13 &&
-	test_must_be_empty actual
-'
-
-test_expect_success 'noisy zeroes' '
-	printf "SVNQ%s" \
-		"RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRQQQQQ" |
-		tr R "\200" |
-		q_to_nul >clear.noisy &&
-	len=$(wc -c <clear.noisy) &&
-	test-svn-fe -d preimage clear.noisy $len &&
-	test_must_be_empty actual
-'
-
-test_expect_success 'reject variable-length int in magic' '
-	printf "SVNRQ" | tr R "\200" | q_to_nul >clear.badmagic &&
-	test_must_fail test-svn-fe -d preimage clear.badmagic 5
-'
-
-test_expect_success 'reject truncated integer' '
-	printf "SVNQ%s%s" "QQQQQ" "QQQQRRQ" |
-		tr R "\200" |
-		q_to_nul >clear.fullint &&
-	printf "SVNQ%s%s" "QQQQQ" "QQQQRR" |
-		tr RT "\201" |
-		q_to_nul >clear.partialint &&
-	test_must_fail test-svn-fe -d preimage clear.fullint 15 &&
-	test-svn-fe -d preimage clear.fullint 16 &&
-	test_must_fail test-svn-fe -d preimage clear.partialint 15
-'
-
-test_expect_success 'nonempty (but unused) preimage view' '
-	printf "SVNQ%b" "Q\003QQQ" | q_to_nul >clear.readpreimage &&
-	test-svn-fe -d preimage clear.readpreimage 9 >actual &&
-	test_must_be_empty actual
-'
-
-test_expect_success 'preimage view: right endpoint cannot backtrack' '
-	printf "SVNQ%b%b" "Q\003QQQ" "Q\002QQQ" |
-		q_to_nul >clear.backtrack &&
-	test_must_fail test-svn-fe -d preimage clear.backtrack 14
-'
-
-test_expect_success 'preimage view: left endpoint can advance' '
-	printf "SVNQ%b%b" "Q\003QQQ" "\001\002QQQ" |
-		q_to_nul >clear.preshrink &&
-	printf "SVNQ%b%b" "Q\003QQQ" "\001\001QQQ" |
-		q_to_nul >clear.shrinkbacktrack &&
-	test-svn-fe -d preimage clear.preshrink 14 >actual &&
-	test_must_fail test-svn-fe -d preimage clear.shrinkbacktrack 14 &&
-	test_must_be_empty actual
-'
-
-test_expect_success 'preimage view: offsets compared by value' '
-	printf "SVNQ%b%b" "\001\001QQQ" "\0200Q\003QQQ" |
-		q_to_nul >clear.noisybacktrack &&
-	printf "SVNQ%b%b" "\001\001QQQ" "\0200\001\002QQQ" |
-		q_to_nul >clear.noisyadvance &&
-	test_must_fail test-svn-fe -d preimage clear.noisybacktrack 15 &&
-	test-svn-fe -d preimage clear.noisyadvance 15 &&
-	test_must_be_empty actual
-'
-
-test_expect_success 'preimage view: reject truncated preimage' '
-	printf "SVNQ%b" "\010QQQQ" | q_to_nul >clear.lateemptyread &&
-	printf "SVNQ%b" "\010\001QQQ" | q_to_nul >clear.latenonemptyread &&
-	printf "SVNQ%b" "\001\010QQQ" | q_to_nul >clear.longread &&
-	test_must_fail test-svn-fe -d preimage clear.lateemptyread 9 &&
-	test_must_fail test-svn-fe -d preimage clear.latenonemptyread 9 &&
-	test_must_fail test-svn-fe -d preimage clear.longread 9
-'
-
-test_expect_success 'forbid unconsumed inline data' '
-	printf "SVNQ%b%s%b%s" "QQQQ\003" "bar" "QQQQ\001" "x" |
-		q_to_nul >inline.clear &&
-	test_must_fail test-svn-fe -d preimage inline.clear 18 >actual
-'
-
-test_expect_success 'reject truncated inline data' '
-	printf "SVNQ%b%s" "QQQQ\003" "b" | q_to_nul >inline.trunc &&
-	test_must_fail test-svn-fe -d preimage inline.trunc 10
-'
-
-test_expect_success 'reject truncated inline data (after instruction section)' '
-	printf "SVNQ%b%b%s" "QQ\001\001\003" "\0201" "b" | q_to_nul >insn.trunc &&
-	test_must_fail test-svn-fe -d preimage insn.trunc 11
-'
-
-test_expect_success 'copyfrom_data' '
-	echo hi >expect &&
-	printf "SVNQ%b%b%b" "QQ\003\001\003" "\0203" "hi\n" | q_to_nul >copydat &&
-	test-svn-fe -d preimage copydat 13 >actual &&
-	test_cmp expect actual
-'
-
-test_expect_success 'multiple copyfrom_data' '
-	echo hi >expect &&
-	printf "SVNQ%b%b%b%b%b" "QQ\003\002\003" "\0201\0202" "hi\n" \
-		"QQQ\002Q" "\0200Q" | q_to_nul >copy.multi &&
-	len=$(wc -c <copy.multi) &&
-	test-svn-fe -d preimage copy.multi $len >actual &&
-	test_cmp expect actual
-'
-
-test_expect_success 'incomplete multiple insn' '
-	printf "SVNQ%b%b%b" "QQ\003\002\003" "\0203\0200" "hi\n" |
-		q_to_nul >copy.partial &&
-	len=$(wc -c <copy.partial) &&
-	test_must_fail test-svn-fe -d preimage copy.partial $len
-'
-
-test_expect_success 'catch attempt to copy missing data' '
-	printf "SVNQ%b%b%s%b%s" "QQ\002\002\001" "\0201\0201" "X" \
-			"QQQQ\002" "YZ" |
-		q_to_nul >copy.incomplete &&
-	len=$(wc -c <copy.incomplete) &&
-	test_must_fail test-svn-fe -d preimage copy.incomplete $len
-'
-
-test_expect_success 'copyfrom target to repeat data' '
-	printf foofoo >expect &&
-	printf "SVNQ%b%b%s" "QQ\006\004\003" "\0203\0100\003Q" "foo" |
-		q_to_nul >copytarget.repeat &&
-	len=$(wc -c <copytarget.repeat) &&
-	test-svn-fe -d preimage copytarget.repeat $len >actual &&
-	test_cmp expect actual
-'
-
-test_expect_success 'copyfrom target out of order' '
-	printf foooof >expect &&
-	printf "SVNQ%b%b%s" \
-		"QQ\006\007\003" "\0203\0101\002\0101\001\0101Q" "foo" |
-		q_to_nul >copytarget.reverse &&
-	len=$(wc -c <copytarget.reverse) &&
-	test-svn-fe -d preimage copytarget.reverse $len >actual &&
-	test_cmp expect actual
-'
-
-test_expect_success 'catch copyfrom future' '
-	printf "SVNQ%b%b%s" "QQ\004\004\003" "\0202\0101\002\0201" "XYZ" |
-		q_to_nul >copytarget.infuture &&
-	len=$(wc -c <copytarget.infuture) &&
-	test_must_fail test-svn-fe -d preimage copytarget.infuture $len
-'
-
-test_expect_success 'copy to sustain' '
-	printf XYXYXYXYXYXZ >expect &&
-	printf "SVNQ%b%b%s" "QQ\014\004\003" "\0202\0111Q\0201" "XYZ" |
-		q_to_nul >copytarget.sustain &&
-	len=$(wc -c <copytarget.sustain) &&
-	test-svn-fe -d preimage copytarget.sustain $len >actual &&
-	test_cmp expect actual
-'
-
-test_expect_success 'catch copy that overflows' '
-	printf "SVNQ%b%b%s" "QQ\003\003\001" "\0201\0177Q" X |
-		q_to_nul >copytarget.overflow &&
-	len=$(wc -c <copytarget.overflow) &&
-	test_must_fail test-svn-fe -d preimage copytarget.overflow $len
-'
-
-test_expect_success 'copyfrom source' '
-	printf foo >expect &&
-	printf "SVNQ%b%b" "Q\003\003\002Q" "\003Q" | q_to_nul >copysource.all &&
-	test-svn-fe -d preimage copysource.all 11 >actual &&
-	test_cmp expect actual
-'
-
-test_expect_success 'copy backwards' '
-	printf oof >expect &&
-	printf "SVNQ%b%b" "Q\003\003\006Q" "\001\002\001\001\001Q" |
-		q_to_nul >copysource.rev &&
-	test-svn-fe -d preimage copysource.rev 15 >actual &&
-	test_cmp expect actual
-'
-
-test_expect_success 'offsets are relative to window' '
-	printf fo >expect &&
-	printf "SVNQ%b%b%b%b" "Q\003\001\002Q" "\001Q" \
-		"\002\001\001\002Q" "\001Q" |
-		q_to_nul >copysource.two &&
-	test-svn-fe -d preimage copysource.two 18 >actual &&
-	test_cmp expect actual
-'
-
-test_expect_success 'example from notes/svndiff' '
-	printf aaaaccccdddddddd >expect &&
-	printf aaaabbbbcccc >source &&
-	printf "SVNQ%b%b%s" "Q\014\020\007\001" \
-		"\004Q\004\010\0201\0107\010" d |
-		q_to_nul >delta.example &&
-	len=$(wc -c <delta.example) &&
-	test-svn-fe -d source delta.example $len >actual &&
-	test_cmp expect actual
-'
-
-test_done
diff --git a/t/t9020-remote-svn.sh b/t/t9020-remote-svn.sh
deleted file mode 100755
index 754c4a3..0000000
--- a/t/t9020-remote-svn.sh
+++ /dev/null
@@ -1,95 +0,0 @@
-#!/bin/sh
-
-test_description='tests remote-svn'
-
-. ./test-lib.sh
-
-MARKSPATH=.git/info/fast-import/remote-svn
-
-if ! test_have_prereq PYTHON
-then
-	skip_all='skipping remote-svn tests, python not available'
-	test_done
-fi
-
-# Override svnrdump with our simulator
-PATH="$HOME:$PATH"
-export PATH PYTHON_PATH GIT_BUILD_DIR
-
-write_script "$HOME/svnrdump" <<\EOF
-exec "$PYTHON_PATH" "$GIT_BUILD_DIR/contrib/svn-fe/svnrdump_sim.py" "$@"
-EOF
-
-init_git () {
-	rm -fr .git &&
-	git init &&
-	#git remote add svnsim testsvn::sim:///$TEST_DIRECTORY/t9020/example.svnrdump
-	# let's reuse an existing dump file!?
-	git remote add svnsim "testsvn::sim://$TEST_DIRECTORY/t9154/svn.dump"
-	git remote add svnfile "testsvn::file://$TEST_DIRECTORY/t9154/svn.dump"
-}
-
-if test -e "$GIT_BUILD_DIR/git-remote-testsvn"
-then
-	test_set_prereq REMOTE_SVN
-fi
-
-test_debug '
-	git --version
-	type git
-	type svnrdump
-'
-
-test_expect_success REMOTE_SVN 'simple fetch' '
-	init_git &&
-	git fetch svnsim &&
-	test_cmp .git/refs/svn/svnsim/master .git/refs/remotes/svnsim/master  &&
-	cp .git/refs/remotes/svnsim/master master.good
-'
-
-test_debug '
-	git show-ref -s refs/svn/svnsim/master
-	git show-ref -s refs/remotes/svnsim/master
-'
-
-test_expect_success REMOTE_SVN 'repeated fetch, nothing shall change' '
-	git fetch svnsim &&
-	test_cmp master.good .git/refs/remotes/svnsim/master
-'
-
-test_expect_success REMOTE_SVN 'fetch from a file:// url gives the same result' '
-	git fetch svnfile
-'
-
-test_expect_failure REMOTE_SVN 'the sha1 differ because the git-svn-id line in the commit msg contains the url' '
-	test_cmp .git/refs/remotes/svnfile/master .git/refs/remotes/svnsim/master
-'
-
-test_expect_success REMOTE_SVN 'mark-file regeneration' '
-	# filter out any other marks, that can not be regenerated. Only up to 3 digit revisions are allowed here
-	grep ":[0-9]\{1,3\} " $MARKSPATH/svnsim.marks > $MARKSPATH/svnsim.marks.old &&
-	rm $MARKSPATH/svnsim.marks &&
-	git fetch svnsim &&
-	test_cmp $MARKSPATH/svnsim.marks.old $MARKSPATH/svnsim.marks
-'
-
-test_expect_success REMOTE_SVN 'incremental imports must lead to the same head' '
-	SVNRMAX=3 &&
-	export SVNRMAX &&
-	init_git &&
-	git fetch svnsim &&
-	test_cmp .git/refs/svn/svnsim/master .git/refs/remotes/svnsim/master  &&
-	unset SVNRMAX &&
-	git fetch svnsim &&
-	test_cmp master.good .git/refs/remotes/svnsim/master
-'
-
-test_expect_success REMOTE_SVN 'respects configured default initial branch' '
-	git -c init.defaultBranch=trunk remote add -f trunk \
-		"testsvn::file://$TEST_DIRECTORY/t9154/svn.dump" &&
-	git rev-parse --verify refs/remotes/trunk/trunk
-'
-
-test_debug 'git branch -a'
-
-test_done
diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
index 6a8e194..f990406 100644
--- a/t/test-lib-functions.sh
+++ b/t/test-lib-functions.sh
@@ -820,7 +820,7 @@
 	fi
 
 	case "$1" in
-	git|__git*|test-tool|test-svn-fe|test_terminal)
+	git|__git*|test-tool|test_terminal)
 		return 0
 		;;
 	*)
diff --git a/trailer.c b/trailer.c
index 0c414f2..68dabc2 100644
--- a/trailer.c
+++ b/trailer.c
@@ -221,15 +221,13 @@
 	struct strbuf cmd = STRBUF_INIT;
 	struct strbuf buf = STRBUF_INIT;
 	struct child_process cp = CHILD_PROCESS_INIT;
-	const char *argv[] = {NULL, NULL};
 	char *result;
 
 	strbuf_addstr(&cmd, command);
 	if (arg)
 		strbuf_replace(&cmd, TRAILER_ARG_STRING, arg);
 
-	argv[0] = cmd.buf;
-	cp.argv = argv;
+	strvec_push(&cp.args, cmd.buf);
 	cp.env = local_repo_env;
 	cp.no_stdin = 1;
 	cp.use_shell = 1;
diff --git a/transport-helper.c b/transport-helper.c
index defafbf..c52c99d 100644
--- a/transport-helper.c
+++ b/transport-helper.c
@@ -128,10 +128,10 @@
 	helper->in = -1;
 	helper->out = -1;
 	helper->err = 0;
-	strvec_pushf(&helper->args, "git-remote-%s", data->name);
+	strvec_pushf(&helper->args, "remote-%s", data->name);
 	strvec_push(&helper->args, transport->remote->name);
 	strvec_push(&helper->args, remove_ext_force(transport->url));
-	helper->git_cmd = 0;
+	helper->git_cmd = 1;
 	helper->silent_exec_failure = 1;
 
 	if (have_git_dir())
diff --git a/transport.c b/transport.c
index 2d4fd85..43e24bf 100644
--- a/transport.c
+++ b/transport.c
@@ -232,9 +232,6 @@
 	} else if (!strcmp(name, TRANS_OPT_FROM_PROMISOR)) {
 		opts->from_promisor = !!value;
 		return 0;
-	} else if (!strcmp(name, TRANS_OPT_NO_DEPENDENTS)) {
-		opts->no_dependents = !!value;
-		return 0;
 	} else if (!strcmp(name, TRANS_OPT_LIST_OBJECTS_FILTER)) {
 		list_objects_filter_die_if_populated(&opts->filter_options);
 		parse_list_objects_filter(&opts->filter_options, value);
@@ -359,7 +356,6 @@
 	args.cloning = transport->cloning;
 	args.update_shallow = data->options.update_shallow;
 	args.from_promisor = data->options.from_promisor;
-	args.no_dependents = data->options.no_dependents;
 	args.filter_options = data->options.filter_options;
 	args.stateless_rpc = transport->stateless_rpc;
 	args.server_options = transport->server_options;
@@ -443,6 +439,7 @@
 	if (ref->status != REF_STATUS_OK && ref->status != REF_STATUS_UPTODATE)
 		return;
 
+	memset(&rs, 0, sizeof(rs));
 	rs.src = ref->name;
 	rs.dst = NULL;
 
diff --git a/transport.h b/transport.h
index 1be4013..ca409ea 100644
--- a/transport.h
+++ b/transport.h
@@ -15,8 +15,9 @@
 	unsigned self_contained_and_connected : 1;
 	unsigned update_shallow : 1;
 	unsigned deepen_relative : 1;
+
+	/* see documentation of corresponding flag in fetch-pack.h */
 	unsigned from_promisor : 1;
-	unsigned no_dependents : 1;
 
 	/*
 	 * If this transport supports connect or stateless-connect,
@@ -201,12 +202,6 @@
 /* Indicate that these objects are being fetched by a promisor */
 #define TRANS_OPT_FROM_PROMISOR "from-promisor"
 
-/*
- * Indicate that only the objects wanted need to be fetched, not their
- * dependents
- */
-#define TRANS_OPT_NO_DEPENDENTS "no-dependents"
-
 /* Filter objects for partial clone and fetch */
 #define TRANS_OPT_LIST_OBJECTS_FILTER "filter"
 
diff --git a/vcs-svn/LICENSE b/vcs-svn/LICENSE
deleted file mode 100644
index eb91858..0000000
--- a/vcs-svn/LICENSE
+++ /dev/null
@@ -1,32 +0,0 @@
-Copyright (C) 2010 David Barr <david.barr@cordelta.com>.
-All rights reserved.
-
-Copyright (C) 2010 Jonathan Nieder <jrnieder@gmail.com>.
-
-Copyright (C) 2005 Stefan Hegny, hydrografix Consulting GmbH,
-Frankfurt/Main, Germany
-and others, see http://svn2cc.sarovar.org
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice(s), this list of conditions and the following disclaimer
-   unmodified other than the allowable addition of one or more
-   copyright notices.
-2. Redistributions in binary form must reproduce the above copyright
-   notice(s), this list of conditions and the following disclaimer in
-   the documentation and/or other materials provided with the
-   distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
-EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
-LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
-BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
-OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
-EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vcs-svn/fast_export.c b/vcs-svn/fast_export.c
deleted file mode 100644
index b5b8913..0000000
--- a/vcs-svn/fast_export.c
+++ /dev/null
@@ -1,365 +0,0 @@
-/*
- * Licensed under a two-clause BSD-style license.
- * See LICENSE for details.
- */
-
-#include "cache.h"
-#include "quote.h"
-#include "fast_export.h"
-#include "strbuf.h"
-#include "svndiff.h"
-#include "sliding_window.h"
-#include "line_buffer.h"
-
-#define MAX_GITSVN_LINE_LEN 4096
-
-static uint32_t first_commit_done;
-static struct line_buffer postimage = LINE_BUFFER_INIT;
-static struct line_buffer report_buffer = LINE_BUFFER_INIT;
-
-/* NEEDSWORK: move to fast_export_init() */
-static int init_postimage(void)
-{
-	static int postimage_initialized;
-	if (postimage_initialized)
-		return 0;
-	postimage_initialized = 1;
-	return buffer_tmpfile_init(&postimage);
-}
-
-void fast_export_init(int fd)
-{
-	first_commit_done = 0;
-	if (buffer_fdinit(&report_buffer, fd))
-		die_errno("cannot read from file descriptor %d", fd);
-}
-
-void fast_export_deinit(void)
-{
-	if (buffer_deinit(&report_buffer))
-		die_errno("error closing fast-import feedback stream");
-}
-
-void fast_export_delete(const char *path)
-{
-	putchar('D');
-	putchar(' ');
-	quote_c_style(path, NULL, stdout, 0);
-	putchar('\n');
-}
-
-static void fast_export_truncate(const char *path, uint32_t mode)
-{
-	fast_export_modify(path, mode, "inline");
-	printf("data 0\n\n");
-}
-
-void fast_export_modify(const char *path, uint32_t mode, const char *dataref)
-{
-	/* Mode must be 100644, 100755, 120000, or 160000. */
-	if (!dataref) {
-		fast_export_truncate(path, mode);
-		return;
-	}
-	printf("M %06"PRIo32" %s ", mode, dataref);
-	quote_c_style(path, NULL, stdout, 0);
-	putchar('\n');
-}
-
-void fast_export_begin_note(uint32_t revision, const char *author,
-		const char *log, timestamp_t timestamp, const char *note_ref)
-{
-	static int firstnote = 1;
-	size_t loglen = strlen(log);
-	printf("commit %s\n", note_ref);
-	printf("committer %s <%s@%s> %"PRItime" +0000\n", author, author, "local", timestamp);
-	printf("data %"PRIuMAX"\n", (uintmax_t)loglen);
-	fwrite(log, loglen, 1, stdout);
-	if (firstnote) {
-		if (revision > 1)
-			printf("from %s^0", note_ref);
-		firstnote = 0;
-	}
-	fputc('\n', stdout);
-}
-
-void fast_export_note(const char *committish, const char *dataref)
-{
-	printf("N %s %s\n", dataref, committish);
-}
-
-static char gitsvnline[MAX_GITSVN_LINE_LEN];
-void fast_export_begin_commit(uint32_t revision, const char *author,
-			const struct strbuf *log,
-			const char *uuid, const char *url,
-			timestamp_t timestamp, const char *local_ref)
-{
-	static const struct strbuf empty = STRBUF_INIT;
-	if (!log)
-		log = &empty;
-	if (*uuid && *url) {
-		snprintf(gitsvnline, MAX_GITSVN_LINE_LEN,
-				"\n\ngit-svn-id: %s@%"PRIu32" %s\n",
-				 url, revision, uuid);
-	} else {
-		*gitsvnline = '\0';
-	}
-	printf("commit %s\n", local_ref);
-	printf("mark :%"PRIu32"\n", revision);
-	printf("committer %s <%s@%s> %"PRItime" +0000\n",
-		   *author ? author : "nobody",
-		   *author ? author : "nobody",
-		   *uuid ? uuid : "local", timestamp);
-	printf("data %"PRIuMAX"\n",
-		(uintmax_t) (log->len + strlen(gitsvnline)));
-	fwrite(log->buf, log->len, 1, stdout);
-	printf("%s\n", gitsvnline);
-	if (!first_commit_done) {
-		if (revision > 1)
-			printf("from :%"PRIu32"\n", revision - 1);
-		first_commit_done = 1;
-	}
-}
-
-void fast_export_end_commit(uint32_t revision)
-{
-	printf("progress Imported commit %"PRIu32".\n\n", revision);
-}
-
-static void ls_from_rev(uint32_t rev, const char *path)
-{
-	/* ls :5 path/to/old/file */
-	printf("ls :%"PRIu32" ", rev);
-	quote_c_style(path, NULL, stdout, 0);
-	putchar('\n');
-	fflush(stdout);
-}
-
-static void ls_from_active_commit(const char *path)
-{
-	/* ls "path/to/file" */
-	printf("ls \"");
-	quote_c_style(path, NULL, stdout, 1);
-	printf("\"\n");
-	fflush(stdout);
-}
-
-static const char *get_response_line(void)
-{
-	const char *line = buffer_read_line(&report_buffer);
-	if (line)
-		return line;
-	if (buffer_ferror(&report_buffer))
-		die_errno("error reading from fast-import");
-	die("unexpected end of fast-import feedback");
-}
-
-static void die_short_read(struct line_buffer *input)
-{
-	if (buffer_ferror(input))
-		die_errno("error reading dump file");
-	die("invalid dump: unexpected end of file");
-}
-
-static int parse_cat_response_line(const char *header, off_t *len)
-{
-	uintmax_t n;
-	const char *type;
-	const char *end;
-
-	if (ends_with(header, " missing"))
-		return error("cat-blob reports missing blob: %s", header);
-	type = strstr(header, " blob ");
-	if (!type)
-		return error("cat-blob header has wrong object type: %s", header);
-	n = strtoumax(type + strlen(" blob "), (char **) &end, 10);
-	if (end == type + strlen(" blob "))
-		return error("cat-blob header does not contain length: %s", header);
-	if (memchr(type + strlen(" blob "), '-', end - type - strlen(" blob ")))
-		return error("cat-blob header contains negative length: %s", header);
-	if (n == UINTMAX_MAX || n > maximum_signed_value_of_type(off_t))
-		return error("blob too large for current definition of off_t");
-	*len = n;
-	if (*end)
-		return error("cat-blob header contains garbage after length: %s", header);
-	return 0;
-}
-
-static void check_preimage_overflow(off_t a, off_t b)
-{
-	if (signed_add_overflows(a, b))
-		die("blob too large for current definition of off_t");
-}
-
-static long apply_delta(off_t len, struct line_buffer *input,
-			const char *old_data, uint32_t old_mode)
-{
-	long ret;
-	struct sliding_view preimage = SLIDING_VIEW_INIT(&report_buffer, 0);
-	FILE *out;
-
-	if (init_postimage() || !(out = buffer_tmpfile_rewind(&postimage)))
-		die("cannot open temporary file for blob retrieval");
-	if (old_data) {
-		const char *response;
-		printf("cat-blob %s\n", old_data);
-		fflush(stdout);
-		response = get_response_line();
-		if (parse_cat_response_line(response, &preimage.max_off))
-			die("invalid cat-blob response: %s", response);
-		check_preimage_overflow(preimage.max_off, 1);
-	}
-	if (old_mode == S_IFLNK) {
-		strbuf_addstr(&preimage.buf, "link ");
-		check_preimage_overflow(preimage.max_off, strlen("link "));
-		preimage.max_off += strlen("link ");
-		check_preimage_overflow(preimage.max_off, 1);
-	}
-	if (svndiff0_apply(input, len, &preimage, out))
-		die("cannot apply delta");
-	if (old_data) {
-		/* Read the remainder of preimage and trailing newline. */
-		assert(!signed_add_overflows(preimage.max_off, 1));
-		preimage.max_off++;	/* room for newline */
-		if (move_window(&preimage, preimage.max_off - 1, 1))
-			die("cannot seek to end of input");
-		if (preimage.buf.buf[0] != '\n')
-			die("missing newline after cat-blob response");
-	}
-	ret = buffer_tmpfile_prepare_to_read(&postimage);
-	if (ret < 0)
-		die("cannot read temporary file for blob retrieval");
-	strbuf_release(&preimage.buf);
-	return ret;
-}
-
-void fast_export_buf_to_data(const struct strbuf *data)
-{
-	printf("data %"PRIuMAX"\n", (uintmax_t)data->len);
-	fwrite(data->buf, data->len, 1, stdout);
-	fputc('\n', stdout);
-}
-
-void fast_export_data(uint32_t mode, off_t len, struct line_buffer *input)
-{
-	assert(len >= 0);
-	if (mode == S_IFLNK) {
-		/* svn symlink blobs start with "link " */
-		if (len < 5)
-			die("invalid dump: symlink too short for \"link\" prefix");
-		len -= 5;
-		if (buffer_skip_bytes(input, 5) != 5)
-			die_short_read(input);
-	}
-	printf("data %"PRIuMAX"\n", (uintmax_t) len);
-	if (buffer_copy_bytes(input, len) != len)
-		die_short_read(input);
-	fputc('\n', stdout);
-}
-
-static int parse_ls_response(const char *response, uint32_t *mode,
-					struct strbuf *dataref)
-{
-	const char *tab;
-	const char *response_end;
-
-	assert(response);
-	response_end = response + strlen(response);
-
-	if (*response == 'm') {	/* Missing. */
-		errno = ENOENT;
-		return -1;
-	}
-
-	/* Mode. */
-	if (response_end - response < (signed) strlen("100644") ||
-	    response[strlen("100644")] != ' ')
-		die("invalid ls response: missing mode: %s", response);
-	*mode = 0;
-	for (; *response != ' '; response++) {
-		char ch = *response;
-		if (ch < '0' || ch > '7')
-			die("invalid ls response: mode is not octal: %s", response);
-		*mode *= 8;
-		*mode += ch - '0';
-	}
-
-	/* ' blob ' or ' tree ' */
-	if (response_end - response < (signed) strlen(" blob ") ||
-	    (response[1] != 'b' && response[1] != 't'))
-		die("unexpected ls response: not a tree or blob: %s", response);
-	response += strlen(" blob ");
-
-	/* Dataref. */
-	tab = memchr(response, '\t', response_end - response);
-	if (!tab)
-		die("invalid ls response: missing tab: %s", response);
-	strbuf_add(dataref, response, tab - response);
-	return 0;
-}
-
-int fast_export_ls_rev(uint32_t rev, const char *path,
-				uint32_t *mode, struct strbuf *dataref)
-{
-	ls_from_rev(rev, path);
-	return parse_ls_response(get_response_line(), mode, dataref);
-}
-
-int fast_export_ls(const char *path, uint32_t *mode, struct strbuf *dataref)
-{
-	ls_from_active_commit(path);
-	return parse_ls_response(get_response_line(), mode, dataref);
-}
-
-const char *fast_export_read_path(const char *path, uint32_t *mode_out)
-{
-	int err;
-	static struct strbuf buf = STRBUF_INIT;
-
-	strbuf_reset(&buf);
-	err = fast_export_ls(path, mode_out, &buf);
-	if (err) {
-		if (errno != ENOENT)
-			BUG("unexpected fast_export_ls error: %s",
-			    strerror(errno));
-		/* Treat missing paths as directories. */
-		*mode_out = S_IFDIR;
-		return NULL;
-	}
-	return buf.buf;
-}
-
-void fast_export_copy(uint32_t revision, const char *src, const char *dst)
-{
-	int err;
-	uint32_t mode;
-	static struct strbuf data = STRBUF_INIT;
-
-	strbuf_reset(&data);
-	err = fast_export_ls_rev(revision, src, &mode, &data);
-	if (err) {
-		if (errno != ENOENT)
-			BUG("unexpected fast_export_ls_rev error: %s",
-			    strerror(errno));
-		fast_export_delete(dst);
-		return;
-	}
-	fast_export_modify(dst, mode, data.buf);
-}
-
-void fast_export_blob_delta(uint32_t mode,
-				uint32_t old_mode, const char *old_data,
-				off_t len, struct line_buffer *input)
-{
-	long postimage_len;
-
-	assert(len >= 0);
-	postimage_len = apply_delta(len, input, old_data, old_mode);
-	if (mode == S_IFLNK) {
-		buffer_skip_bytes(&postimage, strlen("link "));
-		postimage_len -= strlen("link ");
-	}
-	printf("data %ld\n", postimage_len);
-	buffer_copy_bytes(&postimage, postimage_len);
-	fputc('\n', stdout);
-}
diff --git a/vcs-svn/line_buffer.c b/vcs-svn/line_buffer.c
deleted file mode 100644
index e416caf..0000000
--- a/vcs-svn/line_buffer.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * Licensed under a two-clause BSD-style license.
- * See LICENSE for details.
- */
-
-#include "git-compat-util.h"
-#include "line_buffer.h"
-#include "strbuf.h"
-
-#define COPY_BUFFER_LEN 4096
-
-int buffer_init(struct line_buffer *buf, const char *filename)
-{
-	buf->infile = filename ? fopen(filename, "r") : stdin;
-	if (!buf->infile)
-		return -1;
-	return 0;
-}
-
-int buffer_fdinit(struct line_buffer *buf, int fd)
-{
-	buf->infile = fdopen(fd, "r");
-	if (!buf->infile)
-		return -1;
-	return 0;
-}
-
-int buffer_tmpfile_init(struct line_buffer *buf)
-{
-	buf->infile = tmpfile();
-	if (!buf->infile)
-		return -1;
-	return 0;
-}
-
-int buffer_deinit(struct line_buffer *buf)
-{
-	int err;
-	if (buf->infile == stdin)
-		return ferror(buf->infile);
-	err = ferror(buf->infile);
-	err |= fclose(buf->infile);
-	return err;
-}
-
-FILE *buffer_tmpfile_rewind(struct line_buffer *buf)
-{
-	rewind(buf->infile);
-	return buf->infile;
-}
-
-long buffer_tmpfile_prepare_to_read(struct line_buffer *buf)
-{
-	long pos = ftell(buf->infile);
-	if (pos < 0)
-		return error_errno("ftell error");
-	if (fseek(buf->infile, 0, SEEK_SET))
-		return error_errno("seek error");
-	return pos;
-}
-
-int buffer_ferror(struct line_buffer *buf)
-{
-	return ferror(buf->infile);
-}
-
-int buffer_read_char(struct line_buffer *buf)
-{
-	return fgetc(buf->infile);
-}
-
-/* Read a line without trailing newline. */
-char *buffer_read_line(struct line_buffer *buf)
-{
-	char *end;
-	if (!fgets(buf->line_buffer, sizeof(buf->line_buffer), buf->infile))
-		/* Error or data exhausted. */
-		return NULL;
-	end = buf->line_buffer + strlen(buf->line_buffer);
-	if (end[-1] == '\n')
-		end[-1] = '\0';
-	else if (feof(buf->infile))
-		; /* No newline at end of file.  That's fine. */
-	else
-		/*
-		 * Line was too long.
-		 * There is probably a saner way to deal with this,
-		 * but for now let's return an error.
-		 */
-		return NULL;
-	return buf->line_buffer;
-}
-
-size_t buffer_read_binary(struct line_buffer *buf,
-				struct strbuf *sb, size_t size)
-{
-	return strbuf_fread(sb, size, buf->infile);
-}
-
-off_t buffer_copy_bytes(struct line_buffer *buf, off_t nbytes)
-{
-	char byte_buffer[COPY_BUFFER_LEN];
-	off_t done = 0;
-	while (done < nbytes && !feof(buf->infile) && !ferror(buf->infile)) {
-		off_t len = nbytes - done;
-		size_t in = len < COPY_BUFFER_LEN ? len : COPY_BUFFER_LEN;
-		in = fread(byte_buffer, 1, in, buf->infile);
-		done += in;
-		fwrite(byte_buffer, 1, in, stdout);
-		if (ferror(stdout))
-			return done + buffer_skip_bytes(buf, nbytes - done);
-	}
-	return done;
-}
-
-off_t buffer_skip_bytes(struct line_buffer *buf, off_t nbytes)
-{
-	char byte_buffer[COPY_BUFFER_LEN];
-	off_t done = 0;
-	while (done < nbytes && !feof(buf->infile) && !ferror(buf->infile)) {
-		off_t len = nbytes - done;
-		size_t in = len < COPY_BUFFER_LEN ? len : COPY_BUFFER_LEN;
-		done += fread(byte_buffer, 1, in, buf->infile);
-	}
-	return done;
-}
diff --git a/vcs-svn/line_buffer.txt b/vcs-svn/line_buffer.txt
deleted file mode 100644
index 8e139eb..0000000
--- a/vcs-svn/line_buffer.txt
+++ /dev/null
@@ -1,77 +0,0 @@
-line_buffer API
-===============
-
-The line_buffer library provides a convenient interface for
-mostly-line-oriented input.
-
-Each line is not permitted to exceed 10000 bytes.  The provided
-functions are not thread-safe or async-signal-safe, and like
-`fgets()`, they generally do not function correctly if interrupted
-by a signal without SA_RESTART set.
-
-Calling sequence
-----------------
-
-The calling program:
-
- - initializes a `struct line_buffer` to LINE_BUFFER_INIT
- - specifies a file to read with `buffer_init`
- - processes input with `buffer_read_line`, `buffer_skip_bytes`,
-   and `buffer_copy_bytes`
- - closes the file with `buffer_deinit`, perhaps to start over and
-   read another file.
-
-When finished, the caller can use `buffer_reset` to deallocate
-resources.
-
-Using temporary files
----------------------
-
-Temporary files provide a place to store data that should not outlive
-the calling program.  A program
-
- - initializes a `struct line_buffer` to LINE_BUFFER_INIT
- - requests a temporary file with `buffer_tmpfile_init`
- - acquires an output handle by calling `buffer_tmpfile_rewind`
- - uses standard I/O functions like `fprintf` and `fwrite` to fill
-   the temporary file
- - declares writing is over with `buffer_tmpfile_prepare_to_read`
- - can re-read what was written with `buffer_read_line`,
-   `buffer_copy_bytes`, and so on
- - can reuse the temporary file by calling `buffer_tmpfile_rewind`
-   again
- - removes the temporary file with `buffer_deinit`, perhaps to
-   reuse the line_buffer for some other file.
-
-When finished, the calling program can use `buffer_reset` to deallocate
-resources.
-
-Functions
----------
-
-`buffer_init`, `buffer_fdinit`::
-	Open the named file or file descriptor for input.
-	buffer_init(buf, NULL) prepares to read from stdin.
-	On failure, returns -1 (with errno indicating the nature
-	of the failure).
-
-`buffer_deinit`::
-	Stop reading from the current file (closing it unless
-	it was stdin).  Returns nonzero if `fclose` fails or
-	the error indicator was set.
-
-`buffer_read_line`::
-	Read a line and strip off the trailing newline.
-	On failure or end of file, returns NULL.
-
-`buffer_copy_bytes`::
-	Read `len` bytes of input and dump them to the standard output
-	stream.  Returns early for error or end of file.
-
-`buffer_skip_bytes`::
-	Discards `len` bytes from the input stream (stopping early
-	if necessary because of an error or eof).  Return value is
-	the number of bytes successfully read.
-
-`buffer_reset`::
-	Deallocates non-static buffers.
diff --git a/vcs-svn/sliding_window.c b/vcs-svn/sliding_window.c
deleted file mode 100644
index 06d273c..0000000
--- a/vcs-svn/sliding_window.c
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * Licensed under a two-clause BSD-style license.
- * See LICENSE for details.
- */
-
-#include "git-compat-util.h"
-#include "sliding_window.h"
-#include "line_buffer.h"
-#include "strbuf.h"
-
-static int input_error(struct line_buffer *file)
-{
-	if (!buffer_ferror(file))
-		return error("delta preimage ends early");
-	return error_errno("cannot read delta preimage");
-}
-
-static int skip_or_whine(struct line_buffer *file, off_t gap)
-{
-	if (buffer_skip_bytes(file, gap) != gap)
-		return input_error(file);
-	return 0;
-}
-
-static int read_to_fill_or_whine(struct line_buffer *file,
-				struct strbuf *buf, size_t width)
-{
-	buffer_read_binary(file, buf, width - buf->len);
-	if (buf->len != width)
-		return input_error(file);
-	return 0;
-}
-
-static int check_offset_overflow(off_t offset, uintmax_t len)
-{
-	if (len > maximum_signed_value_of_type(off_t))
-		return error("unrepresentable length in delta: "
-				"%"PRIuMAX" > OFF_MAX", len);
-	if (signed_add_overflows(offset, (off_t) len))
-		return error("unrepresentable offset in delta: "
-				"%"PRIuMAX" + %"PRIuMAX" > OFF_MAX",
-				(uintmax_t) offset, len);
-	return 0;
-}
-
-int move_window(struct sliding_view *view, off_t off, size_t width)
-{
-	off_t file_offset;
-	assert(view);
-	assert(view->width <= view->buf.len);
-	assert(!check_offset_overflow(view->off, view->buf.len));
-
-	if (check_offset_overflow(off, width))
-		return -1;
-	if (off < view->off || off + width < view->off + view->width)
-		return error("invalid delta: window slides left");
-	if (view->max_off >= 0 && view->max_off < off + (off_t) width)
-		return error("delta preimage ends early");
-
-	file_offset = view->off + view->buf.len;
-	if (off < file_offset) {
-		/* Move the overlapping region into place. */
-		strbuf_remove(&view->buf, 0, off - view->off);
-	} else {
-		/* Seek ahead to skip the gap. */
-		if (skip_or_whine(view->file, off - file_offset))
-			return -1;
-		strbuf_setlen(&view->buf, 0);
-	}
-
-	if (view->buf.len > width)
-		; /* Already read. */
-	else if (read_to_fill_or_whine(view->file, &view->buf, width))
-		return -1;
-
-	view->off = off;
-	view->width = width;
-	return 0;
-}
diff --git a/vcs-svn/svndiff.c b/vcs-svn/svndiff.c
deleted file mode 100644
index 75c7531..0000000
--- a/vcs-svn/svndiff.c
+++ /dev/null
@@ -1,309 +0,0 @@
-/*
- * Licensed under a two-clause BSD-style license.
- * See LICENSE for details.
- */
-
-#include "git-compat-util.h"
-#include "sliding_window.h"
-#include "line_buffer.h"
-#include "svndiff.h"
-
-/*
- * svndiff0 applier
- *
- * See http://svn.apache.org/repos/asf/subversion/trunk/notes/svndiff.
- *
- * svndiff0 ::= 'SVN\0' window*
- * window ::= int int int int int instructions inline_data;
- * instructions ::= instruction*;
- * instruction ::= view_selector int int
- *   | copyfrom_data int
- *   | packed_view_selector int
- *   | packed_copyfrom_data
- *   ;
- * view_selector ::= copyfrom_source
- *   | copyfrom_target
- *   ;
- * copyfrom_source ::= # binary 00 000000;
- * copyfrom_target ::= # binary 01 000000;
- * copyfrom_data ::= # binary 10 000000;
- * packed_view_selector ::= # view_selector OR-ed with 6 bit value;
- * packed_copyfrom_data ::= # copyfrom_data OR-ed with 6 bit value;
- * int ::= highdigit* lowdigit;
- * highdigit ::= # binary 1000 0000 OR-ed with 7 bit value;
- * lowdigit ::= # 7 bit value;
- */
-
-#define INSN_MASK	0xc0
-#define INSN_COPYFROM_SOURCE	0x00
-#define INSN_COPYFROM_TARGET	0x40
-#define INSN_COPYFROM_DATA	0x80
-#define OPERAND_MASK	0x3f
-
-#define VLI_CONTINUE	0x80
-#define VLI_DIGIT_MASK	0x7f
-#define VLI_BITS_PER_DIGIT 7
-
-struct window {
-	struct sliding_view *in;
-	struct strbuf out;
-	struct strbuf instructions;
-	struct strbuf data;
-};
-
-#define WINDOW_INIT(w)	{ (w), STRBUF_INIT, STRBUF_INIT, STRBUF_INIT }
-
-static void window_release(struct window *ctx)
-{
-	strbuf_release(&ctx->out);
-	strbuf_release(&ctx->instructions);
-	strbuf_release(&ctx->data);
-}
-
-static int write_strbuf(struct strbuf *sb, FILE *out)
-{
-	if (fwrite(sb->buf, 1, sb->len, out) == sb->len)	/* Success. */
-		return 0;
-	return error_errno("cannot write delta postimage");
-}
-
-static int error_short_read(struct line_buffer *input)
-{
-	if (buffer_ferror(input))
-		return error_errno("error reading delta");
-	return error("invalid delta: unexpected end of file");
-}
-
-static int read_chunk(struct line_buffer *delta, off_t *delta_len,
-		      struct strbuf *buf, size_t len)
-{
-	assert(*delta_len >= 0);
-	strbuf_reset(buf);
-	if (len > (uintmax_t) *delta_len ||
-	    buffer_read_binary(delta, buf, len) != len)
-		return error_short_read(delta);
-	*delta_len -= buf->len;
-	return 0;
-}
-
-static int read_magic(struct line_buffer *in, off_t *len)
-{
-	static const char magic[] = {'S', 'V', 'N', '\0'};
-	struct strbuf sb = STRBUF_INIT;
-
-	if (read_chunk(in, len, &sb, sizeof(magic))) {
-		strbuf_release(&sb);
-		return -1;
-	}
-	if (memcmp(sb.buf, magic, sizeof(magic))) {
-		strbuf_release(&sb);
-		return error("invalid delta: unrecognized file type");
-	}
-	strbuf_release(&sb);
-	return 0;
-}
-
-static int read_int(struct line_buffer *in, uintmax_t *result, off_t *len)
-{
-	uintmax_t rv = 0;
-	off_t sz;
-	for (sz = *len; sz; sz--) {
-		const int ch = buffer_read_char(in);
-		if (ch == EOF)
-			break;
-
-		rv <<= VLI_BITS_PER_DIGIT;
-		rv += (ch & VLI_DIGIT_MASK);
-		if (ch & VLI_CONTINUE)
-			continue;
-
-		*result = rv;
-		*len = sz - 1;
-		return 0;
-	}
-	return error_short_read(in);
-}
-
-static int parse_int(const char **buf, size_t *result, const char *end)
-{
-	size_t rv = 0;
-	const char *pos;
-	for (pos = *buf; pos != end; pos++) {
-		unsigned char ch = *pos;
-
-		rv <<= VLI_BITS_PER_DIGIT;
-		rv += (ch & VLI_DIGIT_MASK);
-		if (ch & VLI_CONTINUE)
-			continue;
-
-		*result = rv;
-		*buf = pos + 1;
-		return 0;
-	}
-	return error("invalid delta: unexpected end of instructions section");
-}
-
-static int read_offset(struct line_buffer *in, off_t *result, off_t *len)
-{
-	uintmax_t val;
-	if (read_int(in, &val, len))
-		return -1;
-	if (val > maximum_signed_value_of_type(off_t))
-		return error("unrepresentable offset in delta: %"PRIuMAX"", val);
-	*result = val;
-	return 0;
-}
-
-static int read_length(struct line_buffer *in, size_t *result, off_t *len)
-{
-	uintmax_t val;
-	if (read_int(in, &val, len))
-		return -1;
-	if (val > SIZE_MAX)
-		return error("unrepresentable length in delta: %"PRIuMAX"", val);
-	*result = val;
-	return 0;
-}
-
-static int copyfrom_source(struct window *ctx, const char **instructions,
-			   size_t nbytes, const char *insns_end)
-{
-	size_t offset;
-	if (parse_int(instructions, &offset, insns_end))
-		return -1;
-	if (unsigned_add_overflows(offset, nbytes) ||
-	    offset + nbytes > ctx->in->width)
-		return error("invalid delta: copies source data outside view");
-	strbuf_add(&ctx->out, ctx->in->buf.buf + offset, nbytes);
-	return 0;
-}
-
-static int copyfrom_target(struct window *ctx, const char **instructions,
-			   size_t nbytes, const char *instructions_end)
-{
-	size_t offset;
-	if (parse_int(instructions, &offset, instructions_end))
-		return -1;
-	if (offset >= ctx->out.len)
-		return error("invalid delta: copies from the future");
-	for (; nbytes > 0; nbytes--)
-		strbuf_addch(&ctx->out, ctx->out.buf[offset++]);
-	return 0;
-}
-
-static int copyfrom_data(struct window *ctx, size_t *data_pos, size_t nbytes)
-{
-	const size_t pos = *data_pos;
-	if (unsigned_add_overflows(pos, nbytes) ||
-	    pos + nbytes > ctx->data.len)
-		return error("invalid delta: copies unavailable inline data");
-	strbuf_add(&ctx->out, ctx->data.buf + pos, nbytes);
-	*data_pos += nbytes;
-	return 0;
-}
-
-static int parse_first_operand(const char **buf, size_t *out, const char *end)
-{
-	size_t result = (unsigned char) *(*buf)++ & OPERAND_MASK;
-	if (result) {	/* immediate operand */
-		*out = result;
-		return 0;
-	}
-	return parse_int(buf, out, end);
-}
-
-static int execute_one_instruction(struct window *ctx,
-				const char **instructions, size_t *data_pos)
-{
-	unsigned int instruction;
-	const char *insns_end = ctx->instructions.buf + ctx->instructions.len;
-	size_t nbytes;
-	assert(ctx);
-	assert(instructions && *instructions);
-	assert(data_pos);
-
-	instruction = (unsigned char) **instructions;
-	if (parse_first_operand(instructions, &nbytes, insns_end))
-		return -1;
-	switch (instruction & INSN_MASK) {
-	case INSN_COPYFROM_SOURCE:
-		return copyfrom_source(ctx, instructions, nbytes, insns_end);
-	case INSN_COPYFROM_TARGET:
-		return copyfrom_target(ctx, instructions, nbytes, insns_end);
-	case INSN_COPYFROM_DATA:
-		return copyfrom_data(ctx, data_pos, nbytes);
-	default:
-		return error("invalid delta: unrecognized instruction");
-	}
-}
-
-static int apply_window_in_core(struct window *ctx)
-{
-	const char *instructions;
-	size_t data_pos = 0;
-
-	/*
-	 * Fill ctx->out.buf using data from the source, target,
-	 * and inline data views.
-	 */
-	for (instructions = ctx->instructions.buf;
-	     instructions != ctx->instructions.buf + ctx->instructions.len;
-	     )
-		if (execute_one_instruction(ctx, &instructions, &data_pos))
-			return -1;
-	if (data_pos != ctx->data.len)
-		return error("invalid delta: does not copy all inline data");
-	return 0;
-}
-
-static int apply_one_window(struct line_buffer *delta, off_t *delta_len,
-			    struct sliding_view *preimage, FILE *out)
-{
-	int rv = -1;
-	struct window ctx = WINDOW_INIT(preimage);
-	size_t out_len;
-	size_t instructions_len;
-	size_t data_len;
-	assert(delta_len);
-
-	/* "source view" offset and length already handled; */
-	if (read_length(delta, &out_len, delta_len) ||
-	    read_length(delta, &instructions_len, delta_len) ||
-	    read_length(delta, &data_len, delta_len) ||
-	    read_chunk(delta, delta_len, &ctx.instructions, instructions_len) ||
-	    read_chunk(delta, delta_len, &ctx.data, data_len))
-		goto error_out;
-	strbuf_grow(&ctx.out, out_len);
-	if (apply_window_in_core(&ctx))
-		goto error_out;
-	if (ctx.out.len != out_len) {
-		rv = error("invalid delta: incorrect postimage length");
-		goto error_out;
-	}
-	if (write_strbuf(&ctx.out, out))
-		goto error_out;
-	rv = 0;
-error_out:
-	window_release(&ctx);
-	return rv;
-}
-
-int svndiff0_apply(struct line_buffer *delta, off_t delta_len,
-			struct sliding_view *preimage, FILE *postimage)
-{
-	assert(delta && preimage && postimage && delta_len >= 0);
-
-	if (read_magic(delta, &delta_len))
-		return -1;
-	while (delta_len) {	/* For each window: */
-		off_t pre_off = -1;
-		size_t pre_len;
-
-		if (read_offset(delta, &pre_off, &delta_len) ||
-		    read_length(delta, &pre_len, &delta_len) ||
-		    move_window(preimage, pre_off, pre_len) ||
-		    apply_one_window(delta, &delta_len, preimage, postimage))
-			return -1;
-	}
-	return 0;
-}
diff --git a/vcs-svn/svndump.c b/vcs-svn/svndump.c
deleted file mode 100644
index 08d136b..0000000
--- a/vcs-svn/svndump.c
+++ /dev/null
@@ -1,540 +0,0 @@
-/*
- * Parse and rearrange a svnadmin dump.
- * Create the dump with:
- * svnadmin dump --incremental -r<startrev>:<endrev> <repository> >outfile
- *
- * Licensed under a two-clause BSD-style license.
- * See LICENSE for details.
- */
-
-#include "cache.h"
-#include "fast_export.h"
-#include "line_buffer.h"
-#include "strbuf.h"
-#include "svndump.h"
-
-/*
- * Compare start of string to literal of equal length;
- * must be guarded by length test.
- */
-#define constcmp(s, ref) memcmp(s, ref, sizeof(ref) - 1)
-
-#define REPORT_FILENO 3
-
-#define NODEACT_REPLACE 4
-#define NODEACT_DELETE 3
-#define NODEACT_ADD 2
-#define NODEACT_CHANGE 1
-#define NODEACT_UNKNOWN 0
-
-/* States: */
-#define DUMP_CTX 0	/* dump metadata */
-#define REV_CTX  1	/* revision metadata */
-#define NODE_CTX 2	/* node metadata */
-#define INTERNODE_CTX 3	/* between nodes */
-
-#define DATE_RFC2822_LEN 31
-
-static struct line_buffer input = LINE_BUFFER_INIT;
-
-static struct {
-	uint32_t action, srcRev, type;
-	off_t prop_length, text_length;
-	struct strbuf src, dst;
-	uint32_t text_delta, prop_delta;
-} node_ctx;
-
-static struct {
-	uint32_t revision;
-	timestamp_t timestamp;
-	struct strbuf log, author, note;
-} rev_ctx;
-
-static struct {
-	uint32_t version;
-	struct strbuf uuid, url;
-} dump_ctx;
-
-static void reset_node_ctx(char *fname)
-{
-	node_ctx.type = 0;
-	node_ctx.action = NODEACT_UNKNOWN;
-	node_ctx.prop_length = -1;
-	node_ctx.text_length = -1;
-	strbuf_reset(&node_ctx.src);
-	node_ctx.srcRev = 0;
-	strbuf_reset(&node_ctx.dst);
-	if (fname)
-		strbuf_addstr(&node_ctx.dst, fname);
-	node_ctx.text_delta = 0;
-	node_ctx.prop_delta = 0;
-}
-
-static void reset_rev_ctx(uint32_t revision)
-{
-	rev_ctx.revision = revision;
-	rev_ctx.timestamp = 0;
-	strbuf_reset(&rev_ctx.log);
-	strbuf_reset(&rev_ctx.author);
-	strbuf_reset(&rev_ctx.note);
-}
-
-static void reset_dump_ctx(const char *url)
-{
-	strbuf_reset(&dump_ctx.url);
-	if (url)
-		strbuf_addstr(&dump_ctx.url, url);
-	dump_ctx.version = 1;
-	strbuf_reset(&dump_ctx.uuid);
-}
-
-static void handle_property(const struct strbuf *key_buf,
-				struct strbuf *val,
-				uint32_t *type_set)
-{
-	const char *key = key_buf->buf;
-	size_t keylen = key_buf->len;
-
-	switch (keylen + 1) {
-	case sizeof("svn:log"):
-		if (constcmp(key, "svn:log"))
-			break;
-		if (!val)
-			die("invalid dump: unsets svn:log");
-		strbuf_swap(&rev_ctx.log, val);
-		break;
-	case sizeof("svn:author"):
-		if (constcmp(key, "svn:author"))
-			break;
-		if (!val)
-			strbuf_reset(&rev_ctx.author);
-		else
-			strbuf_swap(&rev_ctx.author, val);
-		break;
-	case sizeof("svn:date"):
-		if (constcmp(key, "svn:date"))
-			break;
-		if (!val)
-			die("invalid dump: unsets svn:date");
-		if (parse_date_basic(val->buf, &rev_ctx.timestamp, NULL))
-			warning("invalid timestamp: %s", val->buf);
-		break;
-	case sizeof("svn:executable"):
-	case sizeof("svn:special"):
-		if (keylen == strlen("svn:executable") &&
-		    constcmp(key, "svn:executable"))
-			break;
-		if (keylen == strlen("svn:special") &&
-		    constcmp(key, "svn:special"))
-			break;
-		if (*type_set) {
-			if (!val)
-				return;
-			die("invalid dump: sets type twice");
-		}
-		if (!val) {
-			node_ctx.type = S_IFREG | 0644;
-			return;
-		}
-		*type_set = 1;
-		node_ctx.type = keylen == strlen("svn:executable") ?
-				(S_IFREG | 0755) :
-				S_IFLNK;
-	}
-}
-
-static void die_short_read(void)
-{
-	if (buffer_ferror(&input))
-		die_errno("error reading dump file");
-	die("invalid dump: unexpected end of file");
-}
-
-static void read_props(void)
-{
-	static struct strbuf key = STRBUF_INIT;
-	static struct strbuf val = STRBUF_INIT;
-	const char *t;
-	/*
-	 * NEEDSWORK: to support simple mode changes like
-	 *	K 11
-	 *	svn:special
-	 *	V 1
-	 *	*
-	 *	D 14
-	 *	svn:executable
-	 * we keep track of whether a mode has been set and reset to
-	 * plain file only if not.  We should be keeping track of the
-	 * symlink and executable bits separately instead.
-	 */
-	uint32_t type_set = 0;
-	while ((t = buffer_read_line(&input)) && strcmp(t, "PROPS-END")) {
-		uint32_t len;
-		const char type = t[0];
-		int ch;
-
-		if (!type || t[1] != ' ')
-			die("invalid property line: %s", t);
-		len = atoi(&t[2]);
-		strbuf_reset(&val);
-		buffer_read_binary(&input, &val, len);
-		if (val.len < len)
-			die_short_read();
-
-		/* Discard trailing newline. */
-		ch = buffer_read_char(&input);
-		if (ch == EOF)
-			die_short_read();
-		if (ch != '\n')
-			die("invalid dump: expected newline after %s", val.buf);
-
-		switch (type) {
-		case 'K':
-			strbuf_swap(&key, &val);
-			continue;
-		case 'D':
-			handle_property(&val, NULL, &type_set);
-			continue;
-		case 'V':
-			handle_property(&key, &val, &type_set);
-			strbuf_reset(&key);
-			continue;
-		default:
-			die("invalid property line: %s", t);
-		}
-	}
-}
-
-static void handle_node(void)
-{
-	const uint32_t type = node_ctx.type;
-	const int have_props = node_ctx.prop_length != -1;
-	const int have_text = node_ctx.text_length != -1;
-	/*
-	 * Old text for this node:
-	 *  NULL	- directory or bug
-	 *  empty_blob	- empty
-	 *  "<dataref>"	- data retrievable from fast-import
-	 */
-	static const char *const empty_blob = "::empty::";
-	const char *old_data = NULL;
-	uint32_t old_mode = S_IFREG | 0644;
-
-	if (node_ctx.action == NODEACT_DELETE) {
-		if (have_text || have_props || node_ctx.srcRev)
-			die("invalid dump: deletion node has "
-				"copyfrom info, text, or properties");
-		fast_export_delete(node_ctx.dst.buf);
-		return;
-	}
-	if (node_ctx.action == NODEACT_REPLACE) {
-		fast_export_delete(node_ctx.dst.buf);
-		node_ctx.action = NODEACT_ADD;
-	}
-	if (node_ctx.srcRev) {
-		fast_export_copy(node_ctx.srcRev, node_ctx.src.buf, node_ctx.dst.buf);
-		if (node_ctx.action == NODEACT_ADD)
-			node_ctx.action = NODEACT_CHANGE;
-	}
-	if (have_text && type == S_IFDIR)
-		die("invalid dump: directories cannot have text attached");
-
-	/*
-	 * Find old content (old_data) and decide on the new mode.
-	 */
-	if (node_ctx.action == NODEACT_CHANGE && !*node_ctx.dst.buf) {
-		if (type != S_IFDIR)
-			die("invalid dump: root of tree is not a regular file");
-		old_data = NULL;
-	} else if (node_ctx.action == NODEACT_CHANGE) {
-		uint32_t mode;
-		old_data = fast_export_read_path(node_ctx.dst.buf, &mode);
-		if (mode == S_IFDIR && type != S_IFDIR)
-			die("invalid dump: cannot modify a directory into a file");
-		if (mode != S_IFDIR && type == S_IFDIR)
-			die("invalid dump: cannot modify a file into a directory");
-		node_ctx.type = mode;
-		old_mode = mode;
-	} else if (node_ctx.action == NODEACT_ADD) {
-		if (type == S_IFDIR)
-			old_data = NULL;
-		else if (have_text)
-			old_data = empty_blob;
-		else
-			die("invalid dump: adds node without text");
-	} else {
-		die("invalid dump: Node-path block lacks Node-action");
-	}
-
-	/*
-	 * Adjust mode to reflect properties.
-	 */
-	if (have_props) {
-		if (!node_ctx.prop_delta)
-			node_ctx.type = type;
-		if (node_ctx.prop_length)
-			read_props();
-	}
-
-	/*
-	 * Save the result.
-	 */
-	if (type == S_IFDIR)	/* directories are not tracked. */
-		return;
-	assert(old_data);
-	if (old_data == empty_blob)
-		/* For the fast_export_* functions, NULL means empty. */
-		old_data = NULL;
-	if (!have_text) {
-		fast_export_modify(node_ctx.dst.buf, node_ctx.type, old_data);
-		return;
-	}
-	if (!node_ctx.text_delta) {
-		fast_export_modify(node_ctx.dst.buf, node_ctx.type, "inline");
-		fast_export_data(node_ctx.type, node_ctx.text_length, &input);
-		return;
-	}
-	fast_export_modify(node_ctx.dst.buf, node_ctx.type, "inline");
-	fast_export_blob_delta(node_ctx.type, old_mode, old_data,
-				node_ctx.text_length, &input);
-}
-
-static void begin_revision(const char *remote_ref)
-{
-	if (!rev_ctx.revision)	/* revision 0 gets no git commit. */
-		return;
-	fast_export_begin_commit(rev_ctx.revision, rev_ctx.author.buf,
-		&rev_ctx.log, dump_ctx.uuid.buf, dump_ctx.url.buf,
-		rev_ctx.timestamp, remote_ref);
-}
-
-static void end_revision(const char *note_ref)
-{
-	struct strbuf mark = STRBUF_INIT;
-	if (rev_ctx.revision) {
-		fast_export_end_commit(rev_ctx.revision);
-		fast_export_begin_note(rev_ctx.revision, "remote-svn",
-				"Note created by remote-svn.", rev_ctx.timestamp, note_ref);
-		strbuf_addf(&mark, ":%"PRIu32, rev_ctx.revision);
-		fast_export_note(mark.buf, "inline");
-		fast_export_buf_to_data(&rev_ctx.note);
-		strbuf_release(&mark);
-	}
-}
-
-void svndump_read(const char *url, const char *local_ref, const char *notes_ref)
-{
-	char *val;
-	char *t;
-	uint32_t active_ctx = DUMP_CTX;
-	uint32_t len;
-
-	reset_dump_ctx(url);
-	while ((t = buffer_read_line(&input))) {
-		val = strchr(t, ':');
-		if (!val)
-			continue;
-		val++;
-		if (*val != ' ')
-			continue;
-		val++;
-
-		/* strlen(key) + 1 */
-		switch (val - t - 1) {
-		case sizeof("SVN-fs-dump-format-version"):
-			if (constcmp(t, "SVN-fs-dump-format-version"))
-				continue;
-			dump_ctx.version = atoi(val);
-			if (dump_ctx.version > 3)
-				die("expected svn dump format version <= 3, found %"PRIu32,
-				    dump_ctx.version);
-			break;
-		case sizeof("UUID"):
-			if (constcmp(t, "UUID"))
-				continue;
-			strbuf_reset(&dump_ctx.uuid);
-			strbuf_addstr(&dump_ctx.uuid, val);
-			break;
-		case sizeof("Revision-number"):
-			if (constcmp(t, "Revision-number"))
-				continue;
-			if (active_ctx == NODE_CTX)
-				handle_node();
-			if (active_ctx == REV_CTX)
-				begin_revision(local_ref);
-			if (active_ctx != DUMP_CTX)
-				end_revision(notes_ref);
-			active_ctx = REV_CTX;
-			reset_rev_ctx(atoi(val));
-			strbuf_addf(&rev_ctx.note, "%s\n", t);
-			break;
-		case sizeof("Node-path"):
-			if (constcmp(t, "Node-"))
-				continue;
-			if (!constcmp(t + strlen("Node-"), "path")) {
-				if (active_ctx == NODE_CTX)
-					handle_node();
-				if (active_ctx == REV_CTX)
-					begin_revision(local_ref);
-				active_ctx = NODE_CTX;
-				reset_node_ctx(val);
-				strbuf_addf(&rev_ctx.note, "%s\n", t);
-				break;
-			}
-			if (constcmp(t + strlen("Node-"), "kind"))
-				continue;
-			strbuf_addf(&rev_ctx.note, "%s\n", t);
-			if (!strcmp(val, "dir"))
-				node_ctx.type = S_IFDIR;
-			else if (!strcmp(val, "file"))
-				node_ctx.type = S_IFREG | 0644;
-			else
-				fprintf(stderr, "Unknown node-kind: %s\n", val);
-			break;
-		case sizeof("Node-action"):
-			if (constcmp(t, "Node-action"))
-				continue;
-			strbuf_addf(&rev_ctx.note, "%s\n", t);
-			if (!strcmp(val, "delete")) {
-				node_ctx.action = NODEACT_DELETE;
-			} else if (!strcmp(val, "add")) {
-				node_ctx.action = NODEACT_ADD;
-			} else if (!strcmp(val, "change")) {
-				node_ctx.action = NODEACT_CHANGE;
-			} else if (!strcmp(val, "replace")) {
-				node_ctx.action = NODEACT_REPLACE;
-			} else {
-				fprintf(stderr, "Unknown node-action: %s\n", val);
-				node_ctx.action = NODEACT_UNKNOWN;
-			}
-			break;
-		case sizeof("Node-copyfrom-path"):
-			if (constcmp(t, "Node-copyfrom-path"))
-				continue;
-			strbuf_reset(&node_ctx.src);
-			strbuf_addstr(&node_ctx.src, val);
-			strbuf_addf(&rev_ctx.note, "%s\n", t);
-			break;
-		case sizeof("Node-copyfrom-rev"):
-			if (constcmp(t, "Node-copyfrom-rev"))
-				continue;
-			node_ctx.srcRev = atoi(val);
-			strbuf_addf(&rev_ctx.note, "%s\n", t);
-			break;
-		case sizeof("Text-content-length"):
-			if (constcmp(t, "Text") && constcmp(t, "Prop"))
-				continue;
-			if (constcmp(t + 4, "-content-length"))
-				continue;
-			{
-				char *end;
-				uintmax_t len;
-
-				len = strtoumax(val, &end, 10);
-				if (!isdigit(*val) || *end)
-					die("invalid dump: non-numeric length %s", val);
-				if (len > maximum_signed_value_of_type(off_t))
-					die("unrepresentable length in dump: %s", val);
-
-				if (*t == 'T')
-					node_ctx.text_length = (off_t) len;
-				else
-					node_ctx.prop_length = (off_t) len;
-				break;
-			}
-		case sizeof("Text-delta"):
-			if (!constcmp(t, "Text-delta")) {
-				node_ctx.text_delta = !strcmp(val, "true");
-				break;
-			}
-			if (constcmp(t, "Prop-delta"))
-				continue;
-			node_ctx.prop_delta = !strcmp(val, "true");
-			break;
-		case sizeof("Content-length"):
-			if (constcmp(t, "Content-length"))
-				continue;
-			len = atoi(val);
-			t = buffer_read_line(&input);
-			if (!t)
-				die_short_read();
-			if (*t)
-				die("invalid dump: expected blank line after content length header");
-			if (active_ctx == REV_CTX) {
-				read_props();
-			} else if (active_ctx == NODE_CTX) {
-				handle_node();
-				active_ctx = INTERNODE_CTX;
-			} else {
-				fprintf(stderr, "Unexpected content length header: %"PRIu32"\n", len);
-				if (buffer_skip_bytes(&input, len) != len)
-					die_short_read();
-			}
-		}
-	}
-	if (buffer_ferror(&input))
-		die_short_read();
-	if (active_ctx == NODE_CTX)
-		handle_node();
-	if (active_ctx == REV_CTX)
-		begin_revision(local_ref);
-	if (active_ctx != DUMP_CTX)
-		end_revision(notes_ref);
-}
-
-static void init(int report_fd)
-{
-	fast_export_init(report_fd);
-	strbuf_init(&dump_ctx.uuid, 4096);
-	strbuf_init(&dump_ctx.url, 4096);
-	strbuf_init(&rev_ctx.log, 4096);
-	strbuf_init(&rev_ctx.author, 4096);
-	strbuf_init(&rev_ctx.note, 4096);
-	strbuf_init(&node_ctx.src, 4096);
-	strbuf_init(&node_ctx.dst, 4096);
-	reset_dump_ctx(NULL);
-	reset_rev_ctx(0);
-	reset_node_ctx(NULL);
-	return;
-}
-
-int svndump_init(const char *filename)
-{
-	if (buffer_init(&input, filename))
-		return error_errno("cannot open %s", filename ? filename : "NULL");
-	init(REPORT_FILENO);
-	return 0;
-}
-
-int svndump_init_fd(int in_fd, int back_fd)
-{
-	if(buffer_fdinit(&input, xdup(in_fd)))
-		return error_errno("cannot open fd %d", in_fd);
-	init(xdup(back_fd));
-	return 0;
-}
-
-void svndump_deinit(void)
-{
-	fast_export_deinit();
-	reset_dump_ctx(NULL);
-	reset_rev_ctx(0);
-	reset_node_ctx(NULL);
-	strbuf_release(&rev_ctx.log);
-	strbuf_release(&rev_ctx.author);
-	strbuf_release(&rev_ctx.note);
-	strbuf_release(&node_ctx.src);
-	strbuf_release(&node_ctx.dst);
-	if (buffer_deinit(&input))
-		fprintf(stderr, "Input error\n");
-	if (ferror(stdout))
-		fprintf(stderr, "Output error\n");
-}
-
-void svndump_reset(void)
-{
-	strbuf_release(&dump_ctx.uuid);
-	strbuf_release(&dump_ctx.url);
-	strbuf_release(&rev_ctx.log);
-	strbuf_release(&rev_ctx.author);
-}
diff --git a/wt-status.c b/wt-status.c
index 7ce58b8..bb0f912 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -1668,13 +1668,13 @@
 		state->merge_in_progress = 1;
 	} else if (wt_status_check_rebase(NULL, state)) {
 		;		/* all set */
-	} else if (!stat(git_path_cherry_pick_head(r), &st) &&
-			!get_oid("CHERRY_PICK_HEAD", &oid)) {
+	} else if (refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD") &&
+		   !get_oid("CHERRY_PICK_HEAD", &oid)) {
 		state->cherry_pick_in_progress = 1;
 		oidcpy(&state->cherry_pick_head_oid, &oid);
 	}
 	wt_status_check_bisect(NULL, state);
-	if (!stat(git_path_revert_head(r), &st) &&
+	if (refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD") &&
 	    !get_oid("REVERT_HEAD", &oid)) {
 		state->revert_in_progress = 1;
 		oidcpy(&state->revert_head_oid, &oid);