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Teach builtin-notes to remove empty notes

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When the result of editing a note is an empty string, the associated note
entry should be deleted from the notes tree.

This allows deleting notes by invoking either "git notes -m ''" or
"git notes -F /dev/null".

Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johan Herland 2010-02-13 22:28:24 +01:00 committed by Junio C Hamano
parent 851c2b3791
commit a0b4dfa9b3
2 changed files with 42 additions and 4 deletions
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15
builtin-notes.c
View file

@ -113,7 +113,7 @@ static void create_note(const unsigned char *object,
stripspace(buf, 1);
if (!skip_editor && !buf->len) {
if (!buf->len) {
fprintf(stderr, "Removing note for object %s\n",
sha1_to_hex(object));
hashclr(result);
@ -197,7 +197,8 @@ int cmd_notes(int argc, const char **argv, const char *prefix)
struct notes_tree *t;
unsigned char object[20], new_note[20];
const unsigned char *note;
const char *object_ref;
const char *object_ref, *logmsg;
int edit = 0, show = 0;
const char *msgfile = NULL;
struct msg_arg msg = { 0, STRBUF_INIT };
@ -271,8 +272,14 @@ int cmd_notes(int argc, const char **argv, const char *prefix)
}
create_note(object, &buf, msg.given || msgfile, note, new_note);
add_note(t, object, new_note, combine_notes_overwrite);
commit_notes(t, "Note added by 'git notes edit'");
if (is_null_sha1(new_note)) {
remove_note(t, object);
logmsg = "Note removed by 'git notes edit'";
} else {
add_note(t, object, new_note, combine_notes_overwrite);
logmsg = "Note added by 'git notes edit'";
}
commit_notes(t, logmsg);
free_notes(t);
strbuf_release(&buf);

31
t/t3301-notes.sh
View file

@ -234,6 +234,37 @@ test_expect_success 'show -m notes' '
test_cmp expect-m output
'
test_expect_success 'remove note with -F /dev/null (setup)' '
git notes edit -F /dev/null
'
cat > expect-rm-F << EOF
commit bd1753200303d0a0344be813e504253b3d98e74d
Author: A U Thor <author@example.com>
Date: Thu Apr 7 15:17:13 2005 -0700
5th
EOF
printf "\n" >> expect-rm-F
cat expect-F >> expect-rm-F
test_expect_success 'verify note removal with -F /dev/null' '
git log -4 > output &&
test_cmp expect-rm-F output &&
! git notes show
'
test_expect_success 'do not create empty note with -m "" (setup)' '
git notes edit -m ""
'
test_expect_success 'verify non-creation of note with -m ""' '
git log -4 > output &&
test_cmp expect-rm-F output &&
! git notes show
'
test_expect_success 'create other note on a different notes ref (setup)' '
: > a6 &&
git add a6 &&