From: Phil Hord <hordp@xxxxxxxxx>
When a commit is grepped and matching filenames are printed, grep-objects
creates the filename by prefixing the original cmdline argument to the
matched path separated by a colon. Normally this forms a valid blob
reference to the filename, like this:
git grep -l foo HEAD
HEAD:some/path/to/foo.txt
^
But a tree path may be given to grep instead; in this case the colon is
not a valid delimiter to use since it is placed inside a path.
git grep -l foo HEAD:some
HEAD:some:path/to/foo.txt
^
The slash path delimiter should be used instead. Fix git grep to
discern the correct delimiter so it can report valid object names.
git grep -l foo HEAD:some
HEAD:some/path/to/foo.txt
^
Also, prevent the delimiter being added twice, as happens now in these
examples:
git grep -l foo HEAD:
HEAD::some/path/to/foo.txt
^
git grep -l foo HEAD:some/
HEAD:some/:path/to/foo.txt
^
Add a test to confirm correct path forming.
Signed-off-by: Jeff King <peff@xxxxxxxx>
---
I left the author as you, since you have done all the hard work; this is
really just me rebasing your patch on top of mine. But note that you did
not signoff the original.
builtin/grep.c | 13 +++++++++----
t/t7810-grep.sh | 15 +++++++++++++++
2 files changed, 24 insertions(+), 4 deletions(-)
diff --git a/builtin/grep.c b/builtin/grep.c
index ee47d49..2df7986 100644
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -26,6 +26,7 @@ struct object_to_grep {
struct object_to_grep {
struct object *item;
const char *name;
+ unsigned has_path:1;
};
static int use_threads = 1;
@@ -462,7 +463,7 @@ static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec,
}
static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec,
- struct object *obj, const char *name)
+ struct object *obj, const char *name, char delimiter)
{
if (obj->type == OBJ_BLOB)
return grep_sha1(opt, obj->sha1, name, 0, NULL);
@@ -485,7 +486,8 @@ static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec,
strbuf_init(&base, PATH_MAX + len + 1);
if (len) {
strbuf_add(&base, name, len);
- strbuf_addch(&base, ':');
+ if (name[len-1] != delimiter)
+ strbuf_addch(&base, delimiter);
}
init_tree_desc(&tree, data, size);
hit = grep_tree(opt, pathspec, &tree, &base, base.len,
@@ -506,7 +508,8 @@ static int grep_objects(struct grep_opt *opt, const struct pathspec *pathspec,
for (i = 0; i < nr; i++) {
struct object *real_obj;
real_obj = deref_tag(list[i].item, NULL, 0);
- if (grep_object(opt, pathspec, real_obj, list[i].name)) {
+ if (grep_object(opt, pathspec, real_obj, list[i].name,
+ list[i].has_path ? '/' : ':')) {
hit = 1;
if (opt->status_only)
break;
@@ -822,8 +825,9 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
for (i = 0; i < argc; i++) {
const char *arg = argv[i];
unsigned char sha1[20];
+ struct object_context oc;
/* Is it a rev? */
- if (!get_sha1(arg, sha1)) {
+ if (!get_sha1_with_context(arg, 0, sha1, &oc)) {
struct object *object = parse_object_or_die(sha1, arg);
if (!seen_dashdash)
verify_non_filename(prefix, arg);
@@ -831,6 +835,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
ALLOC_GROW(list, list_nr+1, list_alloc);
list[list_nr].item = object;
list[list_nr].name = arg;
+ list[list_nr].has_path = !!oc.path[0];
list_nr++;
continue;
}
diff --git a/t/t7810-grep.sh b/t/t7810-grep.sh
index f698001..2494bfc 100755
--- a/t/t7810-grep.sh
+++ b/t/t7810-grep.sh
@@ -886,6 +886,21 @@ cat >expected <<EOF
'
cat >expected <<EOF
+HEAD:t/a/v:1:vvv
+HEAD:t/v:1:vvv
+EOF
+
+test_expect_success "grep HEAD -- path/" '
+ git grep -n -e vvv HEAD -- t/ >actual &&
+ test_cmp expected actual
+'
+
+test_expect_success "grep HEAD:path" '
+ git grep -n -e vvv HEAD:t/ >actual &&
+ test_cmp expected actual
+'
+
+cat >expected <<EOF
hello.c:int main(int argc, const char **argv)
hello.c: printf("Hello world.\n");
EOF
--
1.8.4.2.g87d4a77
--
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