log,diff-tree: add --combined-all-paths option

The combined diff format for merges will only list one filename, even if
rename or copy detection is active.  For example, with raw format one
might see:

  ::100644 100644 100644 fabadb8 cc95eb0 4866510 MM	describe.c
  ::100755 100755 100755 52b7a2d 6d1ac04 d2ac7d7 RM	bar.sh
  ::100644 100644 100644 e07d6c5 9042e82 ee91881 RR	phooey.c

This doesn't let us know what the original name of bar.sh was in the
first parent, and doesn't let us know what either of the original names
of phooey.c were in either of the parents.  In contrast, for non-merge
commits, raw format does provide original filenames (and a rename score
to boot).  In order to also provide original filenames for merge
commits, add a --combined-all-paths option (which must be used with
either -c or --cc, and is likely only useful with rename or copy
detection active) so that we can print tab-separated filenames when
renames are involved.  This transforms the above output to:

  ::100644 100644 100644 fabadb8 cc95eb0 4866510 MM	desc.c	desc.c	desc.c
  ::100755 100755 100755 52b7a2d 6d1ac04 d2ac7d7 RM	foo.sh	bar.sh	bar.sh
  ::100644 100644 100644 e07d6c5 9042e82 ee91881 RR	fooey.c	fuey.c	phooey.c

Further, in patch format, this changes the from/to headers so that
instead of just having one "from" header, we get one for each parent.
For example, instead of having

  --- a/phooey.c
  +++ b/phooey.c

we would see

  --- a/fooey.c
  --- a/fuey.c
  +++ b/phooey.c

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
10 files changed
tree: c4cb6068aa5c4157871e5df121d42dfd13cbb01b
  1. .github/
  2. block-sha1/
  3. builtin/
  4. ci/
  5. compat/
  6. contrib/
  7. Documentation/
  8. ewah/
  9. git-gui/
  10. gitk-git/
  11. gitweb/
  12. mergetools/
  13. negotiator/
  14. perl/
  15. po/
  16. ppc/
  17. refs/
  18. sha1dc/
  19. sha256/
  20. t/
  21. templates/
  22. vcs-svn/
  23. xdiff/
  24. .clang-format
  25. .editorconfig
  26. .gitattributes
  27. .gitignore
  28. .gitmodules
  29. .mailmap
  30. .travis.yml
  31. .tsan-suppressions
  32. abspath.c
  33. aclocal.m4
  34. advice.c
  35. advice.h
  36. alias.c
  37. alias.h
  38. alloc.c
  39. alloc.h
  40. apply.c
  41. apply.h
  42. archive-tar.c
  43. archive-zip.c
  44. archive.c
  45. archive.h
  46. argv-array.c
  47. argv-array.h
  48. attr.c
  49. attr.h
  50. banned.h
  51. base85.c
  52. bisect.c
  53. bisect.h
  54. blame.c
  55. blame.h
  56. blob.c
  57. blob.h
  58. branch.c
  59. branch.h
  60. builtin.h
  61. bulk-checkin.c
  62. bulk-checkin.h
  63. bundle.c
  64. bundle.h
  65. cache-tree.c
  66. cache-tree.h
  67. cache.h
  68. chdir-notify.c
  69. chdir-notify.h
  70. check-builtins.sh
  71. check-racy.c
  72. check_bindir
  73. checkout.c
  74. checkout.h
  75. color.c
  76. color.h
  77. column.c
  78. column.h
  79. combine-diff.c
  80. command-list.txt
  81. commit-graph.c
  82. commit-graph.h
  83. commit-reach.c
  84. commit-reach.h
  85. commit-slab-decl.h
  86. commit-slab-impl.h
  87. commit-slab.h
  88. commit.c
  89. commit.h
  90. common-main.c
  91. config.c
  92. config.h
  93. config.mak.dev
  94. config.mak.in
  95. config.mak.uname
  96. configure.ac
  97. connect.c
  98. connect.h
  99. connected.c
  100. connected.h
  101. convert.c
  102. convert.h
  103. copy.c
  104. COPYING
  105. credential-cache--daemon.c
  106. credential-cache.c
  107. credential-store.c
  108. credential.c
  109. credential.h
  110. csum-file.c
  111. csum-file.h
  112. ctype.c
  113. daemon.c
  114. date.c
  115. decorate.c
  116. decorate.h
  117. delta-islands.c
  118. delta-islands.h
  119. delta.h
  120. detect-compiler
  121. diff-delta.c
  122. diff-lib.c
  123. diff-no-index.c
  124. diff.c
  125. diff.h
  126. diffcore-break.c
  127. diffcore-delta.c
  128. diffcore-order.c
  129. diffcore-pickaxe.c
  130. diffcore-rename.c
  131. diffcore.h
  132. dir-iterator.c
  133. dir-iterator.h
  134. dir.c
  135. dir.h
  136. editor.c
  137. entry.c
  138. environment.c
  139. exec-cmd.c
  140. exec-cmd.h
  141. fast-import.c
  142. fetch-negotiator.c
  143. fetch-negotiator.h
  144. fetch-object.c
  145. fetch-object.h
  146. fetch-pack.c
  147. fetch-pack.h
  148. fmt-merge-msg.h
  149. fsck.c
  150. fsck.h
  151. fsmonitor.c
  152. fsmonitor.h
  153. fuzz-pack-headers.c
  154. fuzz-pack-idx.c
  155. generate-cmdlist.sh
  156. gettext.c
  157. gettext.h
  158. git-add--interactive.perl
  159. git-archimport.perl
  160. git-bisect.sh
  161. git-compat-util.h
  162. git-cvsexportcommit.perl
  163. git-cvsimport.perl
  164. git-cvsserver.perl
  165. git-difftool--helper.sh
  166. git-filter-branch.sh
  167. git-instaweb.sh
  168. git-legacy-rebase.sh
  169. git-merge-octopus.sh
  170. git-merge-one-file.sh
  171. git-merge-resolve.sh
  172. git-mergetool--lib.sh
  173. git-mergetool.sh
  174. git-p4.py
  175. git-parse-remote.sh
  176. git-quiltimport.sh
  177. git-rebase--am.sh
  178. git-rebase--common.sh
  179. git-rebase--merge.sh
  180. git-rebase--preserve-merges.sh
  181. git-remote-testgit.sh
  182. git-request-pull.sh
  183. git-send-email.perl
  184. git-sh-i18n.sh
  185. git-sh-setup.sh
  186. git-stash.sh
  187. git-submodule.sh
  188. git-svn.perl
  189. GIT-VERSION-GEN
  190. git-web--browse.sh
  191. git.c
  192. git.rc
  193. gpg-interface.c
  194. gpg-interface.h
  195. graph.c
  196. graph.h
  197. grep.c
  198. grep.h
  199. hash.h
  200. hashmap.c
  201. hashmap.h
  202. help.c
  203. help.h
  204. hex.c
  205. http-backend.c
  206. http-fetch.c
  207. http-push.c
  208. http-walker.c
  209. http.c
  210. http.h
  211. ident.c
  212. imap-send.c
  213. INSTALL
  214. interdiff.c
  215. interdiff.h
  216. iterator.h
  217. json-writer.c
  218. json-writer.h
  219. khash.h
  220. kwset.c
  221. kwset.h
  222. levenshtein.c
  223. levenshtein.h
  224. LGPL-2.1
  225. line-log.c
  226. line-log.h
  227. line-range.c
  228. line-range.h
  229. linear-assignment.c
  230. linear-assignment.h
  231. list-objects-filter-options.c
  232. list-objects-filter-options.h
  233. list-objects-filter.c
  234. list-objects-filter.h
  235. list-objects.c
  236. list-objects.h
  237. list.h
  238. ll-merge.c
  239. ll-merge.h
  240. lockfile.c
  241. lockfile.h
  242. log-tree.c
  243. log-tree.h
  244. ls-refs.c
  245. ls-refs.h
  246. mailinfo.c
  247. mailinfo.h
  248. mailmap.c
  249. mailmap.h
  250. Makefile
  251. match-trees.c
  252. mem-pool.c
  253. mem-pool.h
  254. merge-blobs.c
  255. merge-blobs.h
  256. merge-recursive.c
  257. merge-recursive.h
  258. merge.c
  259. mergesort.c
  260. mergesort.h
  261. midx.c
  262. midx.h
  263. name-hash.c
  264. notes-cache.c
  265. notes-cache.h
  266. notes-merge.c
  267. notes-merge.h
  268. notes-utils.c
  269. notes-utils.h
  270. notes.c
  271. notes.h
  272. object-store.h
  273. object.c
  274. object.h
  275. oidmap.c
  276. oidmap.h
  277. oidset.c
  278. oidset.h
  279. pack-bitmap-write.c
  280. pack-bitmap.c
  281. pack-bitmap.h
  282. pack-check.c
  283. pack-objects.c
  284. pack-objects.h
  285. pack-revindex.c
  286. pack-revindex.h
  287. pack-write.c
  288. pack.h
  289. packfile.c
  290. packfile.h
  291. pager.c
  292. parse-options-cb.c
  293. parse-options.c
  294. parse-options.h
  295. patch-delta.c
  296. patch-ids.c
  297. patch-ids.h
  298. path.c
  299. path.h
  300. pathspec.c
  301. pathspec.h
  302. pkt-line.c
  303. pkt-line.h
  304. preload-index.c
  305. pretty.c
  306. pretty.h
  307. prio-queue.c
  308. prio-queue.h
  309. progress.c
  310. progress.h
  311. prompt.c
  312. prompt.h
  313. protocol.c
  314. protocol.h
  315. quote.c
  316. quote.h
  317. range-diff.c
  318. range-diff.h
  319. reachable.c
  320. reachable.h
  321. read-cache.c
  322. README.md
  323. rebase-interactive.c
  324. rebase-interactive.h
  325. ref-filter.c
  326. ref-filter.h
  327. reflog-walk.c
  328. reflog-walk.h
  329. refs.c
  330. refs.h
  331. refspec.c
  332. refspec.h
  333. remote-curl.c
  334. remote-testsvn.c
  335. remote.c
  336. remote.h
  337. replace-object.c
  338. replace-object.h
  339. repository.c
  340. repository.h
  341. rerere.c
  342. rerere.h
  343. resolve-undo.c
  344. resolve-undo.h
  345. revision.c
  346. revision.h
  347. run-command.c
  348. run-command.h
  349. send-pack.c
  350. send-pack.h
  351. sequencer.c
  352. sequencer.h
  353. serve.c
  354. serve.h
  355. server-info.c
  356. setup.c
  357. sh-i18n--envsubst.c
  358. sha1-array.c
  359. sha1-array.h
  360. sha1-file.c
  361. sha1-lookup.c
  362. sha1-lookup.h
  363. sha1-name.c
  364. sha1dc_git.c
  365. sha1dc_git.h
  366. shallow.c
  367. shell.c
  368. shortlog.h
  369. sideband.c
  370. sideband.h
  371. sigchain.c
  372. sigchain.h
  373. split-index.c
  374. split-index.h
  375. strbuf.c
  376. strbuf.h
  377. streaming.c
  378. streaming.h
  379. string-list.c
  380. string-list.h
  381. sub-process.c
  382. sub-process.h
  383. submodule-config.c
  384. submodule-config.h
  385. submodule.c
  386. submodule.h
  387. symlinks.c
  388. tag.c
  389. tag.h
  390. tar.h
  391. tempfile.c
  392. tempfile.h
  393. thread-utils.c
  394. thread-utils.h
  395. tmp-objdir.c
  396. tmp-objdir.h
  397. trace.c
  398. trace.h
  399. trailer.c
  400. trailer.h
  401. transport-helper.c
  402. transport-internal.h
  403. transport.c
  404. transport.h
  405. tree-diff.c
  406. tree-walk.c
  407. tree-walk.h
  408. tree.c
  409. tree.h
  410. unicode-width.h
  411. unimplemented.sh
  412. unix-socket.c
  413. unix-socket.h
  414. unpack-trees.c
  415. unpack-trees.h
  416. upload-pack.c
  417. upload-pack.h
  418. url.c
  419. url.h
  420. urlmatch.c
  421. urlmatch.h
  422. usage.c
  423. userdiff.c
  424. userdiff.h
  425. utf8.c
  426. utf8.h
  427. varint.c
  428. varint.h
  429. version.c
  430. version.h
  431. versioncmp.c
  432. walker.c
  433. walker.h
  434. wildmatch.c
  435. wildmatch.h
  436. worktree.c
  437. worktree.h
  438. wrap-for-bin.sh
  439. wrapper.c
  440. write-or-die.c
  441. ws.c
  442. wt-status.c
  443. wt-status.h
  444. xdiff-interface.c
  445. xdiff-interface.h
  446. zlib.c
README.md

Git - fast, scalable, distributed revision control system

Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals.

Git is an Open Source project covered by the GNU General Public License version 2 (some parts of it are under different licenses, compatible with the GPLv2). It was originally written by Linus Torvalds with help of a group of hackers around the net.

Please read the file INSTALL for installation instructions.

Many Git online resources are accessible from https://git-scm.com/ including full documentation and Git related tools.

See Documentation/gittutorial.txt to get started, then see Documentation/giteveryday.txt for a useful minimum set of commands, and Documentation/git-.txt for documentation of each command. If git has been correctly installed, then the tutorial can also be read with man gittutorial or git help tutorial, and the documentation of each command with man git-<commandname> or git help <commandname>.

CVS users may also want to read Documentation/gitcvs-migration.txt (man gitcvs-migration or git help cvs-migration if git is installed).

The user discussion and development of Git take place on the Git mailing list -- everyone is welcome to post bug reports, feature requests, comments and patches to git@vger.kernel.org (read Documentation/SubmittingPatches for instructions on patch submission). To subscribe to the list, send an email with just “subscribe git” in the body to majordomo@vger.kernel.org. The mailing list archives are available at https://public-inbox.org/git/, http://marc.info/?l=git and other archival sites.

Issues which are security relevant should be disclosed privately to the Git Security mailing list git-security@googlegroups.com.

The maintainer frequently sends the “What's cooking” reports that list the current status of various development topics to the mailing list. The discussion following them give a good reference for project status, development direction and remaining tasks.

The name “git” was given by Linus Torvalds when he wrote the very first version. He described the tool as “the stupid content tracker” and the name as (depending on your mood):

  • random three-letter combination that is pronounceable, and not actually used by any common UNIX command. The fact that it is a mispronunciation of “get” may or may not be relevant.
  • stupid. contemptible and despicable. simple. Take your pick from the dictionary of slang.
  • “global information tracker”: you're in a good mood, and it actually works for you. Angels sing, and a light suddenly fills the room.
  • “goddamn idiotic truckload of sh*t”: when it breaks