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notes remove: allow removing more than one

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While "xargs -n1 git notes rm" is certainly a possible way to remove notes
from many objects, this would create one notes "commit" per removal, which
is not quite suitable for seasonal housekeeping.

Allow taking more than one on the command line, and record their removal
as a single atomic event if everthing goes well.

Even though the old code insisted that "git notes rm" must be given only
one object (or zero, in which case it would default to HEAD), this
condition was not tested. Add tests to handle the new case where we feed
multiple objects, and also make sure if there is a bad input, no change
is recorded.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano
2011-05-18 15:44:37 -07:00
parent b602ed7dea
commit c3ab1a8e4c
3 changed files with 49 additions and 25 deletions
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47
builtin/notes.c
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@ -29,7 +29,7 @@ static const char * const git_notes_usage[] = {
"git notes [--ref <notes_ref>] merge [-v | -q] [-s <strategy> ] <notes_ref>",
"git notes merge --commit [-v | -q]",
"git notes merge --abort [-v | -q]",
"git notes [--ref <notes_ref>] remove [<object>]",
"git notes [--ref <notes_ref>] remove [<object>...]",
"git notes [--ref <notes_ref>] prune [-n | -v]",
"git notes [--ref <notes_ref>] get-ref",
NULL
@ -953,40 +953,43 @@ static int merge(int argc, const char **argv, const char *prefix)
return result < 0; /* return non-zero on conflicts */
}
static int remove_one_note(struct notes_tree *t, const char *name)
{
int status;
unsigned char sha1[20];
if (get_sha1(name, sha1))
return error(_("Failed to resolve '%s' as a valid ref."), name);
status = remove_note(t, sha1);
if (status)
fprintf(stderr, _("Object %s has no note\n"), name);
else
fprintf(stderr, _("Removing note for object %s\n"), name);
return status;
}
static int remove_cmd(int argc, const char **argv, const char *prefix)
{
struct option options[] = {
OPT_END()
};
const char *object_ref;
struct notes_tree *t;
unsigned char object[20];
int retval;
int retval = 0;
argc = parse_options(argc, argv, prefix, options,
git_notes_remove_usage, 0);
if (1 < argc) {
error(_("too many parameters"));
usage_with_options(git_notes_remove_usage, options);
}
object_ref = argc ? argv[0] : "HEAD";
if (get_sha1(object_ref, object))
die(_("Failed to resolve '%s' as a valid ref."), object_ref);
t = init_notes_check("remove");
retval = remove_note(t, object);
if (retval)
fprintf(stderr, _("Object %s has no note\n"), sha1_to_hex(object));
else {
fprintf(stderr, _("Removing note for object %s\n"),
sha1_to_hex(object));
commit_notes(t, "Notes removed by 'git notes remove'");
if (!argc) {
retval = remove_one_note(t, "HEAD");
} else {
while (*argv) {
retval |= remove_one_note(t, *argv);
argv++;
}
}
if (!retval)
commit_notes(t, "Notes removed by 'git notes remove'");
free_notes(t);
return retval;
}