tree-walk: support :(attr) matching
This lets us use :(attr) with "git grep <tree-ish>" or "git log".
:(attr) requires another round of checking before we can declare that
a path is matched. This is done after path matching since we have lots
of optimization to take a shortcut when things don't match.
Note that if :(attr) is present, we can't return
all_entries_interesting / all_entries_not_interesting anymore because
we can't be certain about that. Not until match_pathspec_attrs() can
tell us "yes all these paths satisfy :(attr)".
Second note. Even though we walk a specific tree, we use attributes
from _worktree_ (or falling back to the index), not from .gitattributes
files on that tree. This by itself is not necessarily wrong, but the
user just have to be aware of this.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/Documentation/glossary-content.txt b/Documentation/glossary-content.txt
index 0d2aa48..023ca95 100644
--- a/Documentation/glossary-content.txt
+++ b/Documentation/glossary-content.txt
@@ -404,6 +404,8 @@
- "`!ATTR`" requires that the attribute `ATTR` be
unspecified.
+
+Note that when matching against a tree object, attributes are still
+obtained from working tree, not from the given tree object.
exclude;;
After a path matches any non-exclude pathspec, it will be run
diff --git a/t/t6135-pathspec-with-attrs.sh b/t/t6135-pathspec-with-attrs.sh
index e436a73..457cc16 100755
--- a/t/t6135-pathspec-with-attrs.sh
+++ b/t/t6135-pathspec-with-attrs.sh
@@ -31,7 +31,7 @@
mkdir sub &&
while read path
do
- : >$path &&
+ echo content >$path &&
git add $path || return 1
done <expect &&
git commit -m "initial commit" &&
@@ -48,6 +48,10 @@
test_must_be_empty actual
'
+test_expect_success 'pathspec with labels and non existent .gitattributes (2)' '
+ test_must_fail git grep content HEAD -- ":(attr:label)"
+'
+
test_expect_success 'setup .gitattributes' '
cat <<-\EOF >.gitattributes &&
fileA labelA
@@ -74,6 +78,15 @@
test_cmp expect actual
'
+test_expect_success 'check specific set attr (2)' '
+ cat <<-\EOF >expect &&
+ HEAD:fileSetLabel
+ HEAD:sub/fileSetLabel
+ EOF
+ git grep -l content HEAD ":(attr:label)" >actual &&
+ test_cmp expect actual
+'
+
test_expect_success 'check specific unset attr' '
cat <<-\EOF >expect &&
fileUnsetLabel
@@ -83,6 +96,15 @@
test_cmp expect actual
'
+test_expect_success 'check specific unset attr (2)' '
+ cat <<-\EOF >expect &&
+ HEAD:fileUnsetLabel
+ HEAD:sub/fileUnsetLabel
+ EOF
+ git grep -l content HEAD ":(attr:-label)" >actual &&
+ test_cmp expect actual
+'
+
test_expect_success 'check specific value attr' '
cat <<-\EOF >expect &&
fileValue
@@ -94,6 +116,16 @@
test_must_be_empty actual
'
+test_expect_success 'check specific value attr (2)' '
+ cat <<-\EOF >expect &&
+ HEAD:fileValue
+ HEAD:sub/fileValue
+ EOF
+ git grep -l content HEAD ":(attr:label=foo)" >actual &&
+ test_cmp expect actual &&
+ test_must_fail git grep -l content HEAD ":(attr:label=bar)"
+'
+
test_expect_success 'check unspecified attr' '
cat <<-\EOF >expect &&
.gitattributes
@@ -118,6 +150,30 @@
test_cmp expect actual
'
+test_expect_success 'check unspecified attr (2)' '
+ cat <<-\EOF >expect &&
+ HEAD:.gitattributes
+ HEAD:fileA
+ HEAD:fileAB
+ HEAD:fileAC
+ HEAD:fileB
+ HEAD:fileBC
+ HEAD:fileC
+ HEAD:fileNoLabel
+ HEAD:fileWrongLabel
+ HEAD:sub/fileA
+ HEAD:sub/fileAB
+ HEAD:sub/fileAC
+ HEAD:sub/fileB
+ HEAD:sub/fileBC
+ HEAD:sub/fileC
+ HEAD:sub/fileNoLabel
+ HEAD:sub/fileWrongLabel
+ EOF
+ git grep -l ^ HEAD ":(attr:!label)" >actual &&
+ test_cmp expect actual
+'
+
test_expect_success 'check multiple unspecified attr' '
cat <<-\EOF >expect &&
.gitattributes
diff --git a/tree-walk.c b/tree-walk.c
index 517bcde..08210a4 100644
--- a/tree-walk.c
+++ b/tree-walk.c
@@ -949,7 +949,8 @@
PATHSPEC_LITERAL |
PATHSPEC_GLOB |
PATHSPEC_ICASE |
- PATHSPEC_EXCLUDE);
+ PATHSPEC_EXCLUDE |
+ PATHSPEC_ATTR);
if (!ps->nr) {
if (!ps->recursive ||
@@ -981,14 +982,20 @@
if (!ps->recursive ||
!(ps->magic & PATHSPEC_MAXDEPTH) ||
- ps->max_depth == -1)
- return all_entries_interesting;
+ ps->max_depth == -1) {
+ if (!item->attr_match_nr)
+ return all_entries_interesting;
+ else
+ goto interesting;
+ }
- return within_depth(base_str + matchlen + 1,
- baselen - matchlen - 1,
- !!S_ISDIR(entry->mode),
- ps->max_depth) ?
- entry_interesting : entry_not_interesting;
+ if (within_depth(base_str + matchlen + 1,
+ baselen - matchlen - 1,
+ !!S_ISDIR(entry->mode),
+ ps->max_depth))
+ goto interesting;
+ else
+ return entry_not_interesting;
}
/* Either there must be no base, or the base must match. */
@@ -996,12 +1003,12 @@
if (match_entry(item, entry, pathlen,
match + baselen, matchlen - baselen,
&never_interesting))
- return entry_interesting;
+ goto interesting;
if (item->nowildcard_len < item->len) {
if (!git_fnmatch(item, match + baselen, entry->path,
item->nowildcard_len - baselen))
- return entry_interesting;
+ goto interesting;
/*
* Match all directories. We'll try to
@@ -1022,7 +1029,7 @@
!ps_strncmp(item, match + baselen,
entry->path,
item->nowildcard_len - baselen))
- return entry_interesting;
+ goto interesting;
}
continue;
@@ -1057,7 +1064,7 @@
if (!git_fnmatch(item, match, base->buf + base_offset,
item->nowildcard_len)) {
strbuf_setlen(base, base_offset + baselen);
- return entry_interesting;
+ goto interesting;
}
/*
@@ -1071,7 +1078,7 @@
!ps_strncmp(item, match, base->buf + base_offset,
item->nowildcard_len)) {
strbuf_setlen(base, base_offset + baselen);
- return entry_interesting;
+ goto interesting;
}
strbuf_setlen(base, base_offset + baselen);
@@ -1085,6 +1092,38 @@
*/
if (ps->recursive && S_ISDIR(entry->mode))
return entry_interesting;
+ continue;
+interesting:
+ if (item->attr_match_nr) {
+ int ret;
+
+ /*
+ * Must not return all_entries_not_interesting
+ * prematurely. We do not know if all entries do not
+ * match some attributes with current attr API.
+ */
+ never_interesting = entry_not_interesting;
+
+ /*
+ * Consider all directories interesting (because some
+ * of those files inside may match some attributes
+ * even though the parent dir does not)
+ *
+ * FIXME: attributes _can_ match directories and we
+ * can probably return all_entries_interesting or
+ * all_entries_not_interesting here if matched.
+ */
+ if (S_ISDIR(entry->mode))
+ return entry_interesting;
+
+ strbuf_add(base, entry->path, pathlen);
+ ret = match_pathspec_attrs(istate, base->buf + base_offset,
+ base->len - base_offset, item);
+ strbuf_setlen(base, base_offset + baselen);
+ if (!ret)
+ continue;
+ }
+ return entry_interesting;
}
return never_interesting; /* No matches */
}
