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authorJeff King <peff@peff.net>2017-05-19 08:59:15 -0400
committerJunio C Hamano <gitster@pobox.com>2017-05-24 10:59:27 +0900
commit158b06caee5f9ea2987f444b8e49bd2d678b187d (patch)
treec7038b47c4392461e760b97f0d4ef0d9a766f073
parentd04ec74b17138733463c0ca1024fdbb42be6096a (diff)
downloadgit-158b06caee5f9ea2987f444b8e49bd2d678b187d.tar.gz
diff: use pending "path" if it is available
There's a subtle distinction between "name" and "path" for a blob that we resolve: the name is what the user told us on the command line, and the path is what we traversed when finding the blob within a tree (if we did so). When we diff blobs directly, we use "name", but "path" is more likely to be useful to the user (it will find the correct .gitattributes, and give them a saner diff header). We still have to fall back to using the name for some cases (i.e., any blob reference that isn't of the form tree:path). That's the best we can do in such a case. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--builtin/diff.c7
-rwxr-xr-xt/t4063-diff-blobs.sh4
2 files changed, 8 insertions, 3 deletions
diff --git a/builtin/diff.c b/builtin/diff.c
index 4c0811d6fc..1a1149eed4 100644
--- a/builtin/diff.c
+++ b/builtin/diff.c
@@ -23,6 +23,11 @@
static const char builtin_diff_usage[] =
"git diff [<options>] [<commit> [<commit>]] [--] [<path>...]";
+static const char *blob_path(struct object_array_entry *entry)
+{
+ return entry->path ? entry->path : entry->name;
+}
+
static void stuff_change(struct diff_options *opt,
unsigned old_mode, unsigned new_mode,
const struct object_id *old_oid,
@@ -110,7 +115,7 @@ static int builtin_diff_blobs(struct rev_info *revs,
blob[0]->mode, blob[1]->mode,
&blob[0]->item->oid, &blob[1]->item->oid,
1, 1,
- blob[0]->name, blob[1]->name);
+ blob_path(blob[0]), blob_path(blob[1]));
diffcore_std(&revs->diffopt);
diff_flush(&revs->diffopt);
return 0;
diff --git a/t/t4063-diff-blobs.sh b/t/t4063-diff-blobs.sh
index df9c35b2dd..80ce033ab6 100755
--- a/t/t4063-diff-blobs.sh
+++ b/t/t4063-diff-blobs.sh
@@ -55,7 +55,7 @@ test_expect_success 'diff by tree:path (run)' '
test_expect_success 'index of tree:path diff' '
check_index $sha1_one $sha1_two
'
-test_expect_failure 'tree:path diff uses filenames as paths' '
+test_expect_success 'tree:path diff uses filenames as paths' '
check_paths one two
'
test_expect_success 'tree:path diff shows mode change' '
@@ -68,7 +68,7 @@ test_expect_success 'diff by ranged tree:path' '
test_expect_success 'index of ranged tree:path diff' '
check_index $sha1_one $sha1_two
'
-test_expect_failure 'ranged tree:path diff uses filenames as paths' '
+test_expect_success 'ranged tree:path diff uses filenames as paths' '
check_paths one two
'
test_expect_success 'ranged tree:path diff shows mode change' '