Merge branch 'jh/note-trees-record-blobs'

"git notes -C <blob>" should not take an object that is not a blob.

* jh/note-trees-record-blobs:
notes: disallow reusing non-blob as a note object

diff --git a/builtin/notes.c b/builtin/notes.c
index 2b24d059b509d28d587066440ed131ce2f85464f..bb89930373451eb0637bb92eedd0613513d959fb 100644 (file)
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -269,7 +269,11 @@ static int parse_reuse_arg(const struct option *opt, const char *arg, int unset)
                die(_("Failed to resolve '%s' as a valid ref."), arg);
        if (!(buf = read_sha1_file(object, &type, &len)) || !len) {
                free(buf);
-               die(_("Failed to read object '%s'."), arg);;
+               die(_("Failed to read object '%s'."), arg);
+       }
+       if (type != OBJ_BLOB) {
+               free(buf);
+               die(_("Cannot read note data from non-blob object '%s'."), arg);
        }
        strbuf_add(&(msg->buf), buf, len);
        free(buf);

diff --git a/t/t3301-notes.sh b/t/t3301-notes.sh
index 16de05aff941c73b3e5f5371bd4739959f679efa..3bb79a47af5e2f619753c61436ec577ec025a8ae 100755 (executable)
--- a/t/t3301-notes.sh
+++ b/t/t3301-notes.sh
@@ -812,6 +812,33 @@ test_expect_success 'create note from non-existing note with "git notes add -C"
        test_must_fail git notes list HEAD
 '
 
+test_expect_success 'create note from non-blob with "git notes add -C" fails' '
+       commit=$(git rev-parse --verify HEAD) &&
+       tree=$(git rev-parse --verify HEAD:) &&
+       test_must_fail git notes add -C $commit &&
+       test_must_fail git notes add -C $tree &&
+       test_must_fail git notes list HEAD
+'
+
+cat > expect << EOF
+commit 80d796defacd5db327b7a4e50099663902fbdc5c
+Author: A U Thor <author@example.com>
+Date:   Thu Apr 7 15:20:13 2005 -0700
+
+    8th
+
+Notes (other):
+    This is a blob object
+EOF
+
+test_expect_success 'create note from blob with "git notes add -C" reuses blob id' '
+       blob=$(echo "This is a blob object" | git hash-object -w --stdin) &&
+       git notes add -C $blob &&
+       git log -1 > actual &&
+       test_cmp expect actual &&
+       test "$(git notes list HEAD)" = "$blob"
+'
+
 cat > expect << EOF
 commit 016e982bad97eacdbda0fcbd7ce5b0ba87c81f1b
 Author: A U Thor <author@example.com>