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authorJacob Keller <jacob.keller@gmail.com>2015-12-29 14:40:28 -0800
committerJunio C Hamano <gitster@pobox.com>2016-01-17 13:59:01 -0800
commitb3715b75226668e26f1f2abe7e2f93cdbbf6e2f5 (patch)
treeb0d30e72a4bf580210ea8fbe3531b395eb233e3b
parent28274d02c489f4c7e68153056e9061a46f62d7a0 (diff)
downloadgit-b3715b75226668e26f1f2abe7e2f93cdbbf6e2f5.tar.gz
notes: allow merging from arbitrary referencesjk/notes-merge-from-anywhere
Create a new expansion function, expand_loose_notes_ref which will first check whether the ref can be found using get_sha1. If it can't be found then it will fallback to using expand_notes_ref. The content of the strbuf will not be changed if the notes ref can be located using get_sha1. Otherwise, it may be updated as done by expand_notes_ref. Since we now support merging from non-notes refs, remove the test case associated with that behavior. Add a test case for merging from a non-notes ref. Signed-off-by: Jacob Keller <jacob.keller@gmail.com> Reviewed-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--builtin/notes.c2
-rw-r--r--notes.c10
-rw-r--r--notes.h7
-rwxr-xr-xt/t3308-notes-merge.sh22
4 files changed, 29 insertions, 12 deletions
diff --git a/builtin/notes.c b/builtin/notes.c
index 52aa9af74b..b16b8b56a0 100644
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -806,7 +806,7 @@ static int merge(int argc, const char **argv, const char *prefix)
o.local_ref = default_notes_ref();
strbuf_addstr(&remote_ref, argv[0]);
- expand_notes_ref(&remote_ref);
+ expand_loose_notes_ref(&remote_ref);
o.remote_ref = remote_ref.buf;
t = init_notes_check("merge");
diff --git a/notes.c b/notes.c
index db77922130..086cc483e5 100644
--- a/notes.c
+++ b/notes.c
@@ -1303,3 +1303,13 @@ void expand_notes_ref(struct strbuf *sb)
else
strbuf_insert(sb, 0, "refs/notes/", 11);
}
+
+void expand_loose_notes_ref(struct strbuf *sb)
+{
+ unsigned char object[20];
+
+ if (get_sha1(sb->buf, object)) {
+ /* fallback to expand_notes_ref */
+ expand_notes_ref(sb);
+ }
+}
diff --git a/notes.h b/notes.h
index 2a3f923380..431f143788 100644
--- a/notes.h
+++ b/notes.h
@@ -294,4 +294,11 @@ void string_list_add_refs_from_colon_sep(struct string_list *list,
/* Expand inplace a note ref like "foo" or "notes/foo" into "refs/notes/foo" */
void expand_notes_ref(struct strbuf *sb);
+/*
+ * Similar to expand_notes_ref, but will check whether the ref can be located
+ * via get_sha1 first, and only falls back to expand_notes_ref in the case
+ * where get_sha1 fails.
+ */
+void expand_loose_notes_ref(struct strbuf *sb);
+
#endif
diff --git a/t/t3308-notes-merge.sh b/t/t3308-notes-merge.sh
index 24d82b49bb..19aed7ec95 100755
--- a/t/t3308-notes-merge.sh
+++ b/t/t3308-notes-merge.sh
@@ -18,7 +18,9 @@ test_expect_success setup '
git notes add -m "Notes on 1st commit" 1st &&
git notes add -m "Notes on 2nd commit" 2nd &&
git notes add -m "Notes on 3rd commit" 3rd &&
- git notes add -m "Notes on 4th commit" 4th
+ git notes add -m "Notes on 4th commit" 4th &&
+ # Copy notes to remote-notes
+ git fetch . refs/notes/*:refs/remote-notes/origin/*
'
commit_sha1=$(git rev-parse 1st^{commit})
@@ -66,7 +68,9 @@ test_expect_success 'verify initial notes (x)' '
'
cp expect_notes_x expect_notes_y
+cp expect_notes_x expect_notes_v
cp expect_log_x expect_log_y
+cp expect_log_x expect_log_v
test_expect_success 'fail to merge empty notes ref into empty notes ref (z => y)' '
test_must_fail git -c "core.notesRef=refs/notes/y" notes merge z
@@ -84,16 +88,12 @@ test_expect_success 'fail to merge into various non-notes refs' '
test_must_fail git -c "core.notesRef=refs/notes/foo^{bar" notes merge x
'
-test_expect_success 'fail to merge various non-note-trees' '
- git config core.notesRef refs/notes/y &&
- test_must_fail git notes merge refs/notes &&
- test_must_fail git notes merge refs/notes/ &&
- test_must_fail git notes merge refs/notes/dir &&
- test_must_fail git notes merge refs/notes/dir/ &&
- test_must_fail git notes merge refs/heads/master &&
- test_must_fail git notes merge x: &&
- test_must_fail git notes merge x:foo &&
- test_must_fail git notes merge foo^{bar
+test_expect_success 'merge non-notes ref into empty notes ref (remote-notes/origin/x => v)' '
+ git config core.notesRef refs/notes/v &&
+ git notes merge refs/remote-notes/origin/x &&
+ verify_notes v &&
+ # refs/remote-notes/origin/x and v should point to the same notes commit
+ test "$(git rev-parse refs/remote-notes/origin/x)" = "$(git rev-parse refs/notes/v)"
'
test_expect_success 'merge notes into empty notes ref (x => y)' '