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Merge branch 'jk/maint-tag-show-fixes' into maint

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* jk/maint-tag-show-fixes:
  tag: do not show non-tag contents with "-n"
  tag: die when listing missing or corrupt objects
  tag: fix output of "tag -n" when errors occur

Conflicts:
	t/t7004-tag.sh
This commit is contained in:
Junio C Hamano 2012-02-13 23:31:27 -08:00
commit a95750c4e8
2 changed files with 53 additions and 32 deletions
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72
builtin/tag.c
View File

@ -83,18 +83,51 @@ static int contains(struct commit *candidate, const struct commit_list *want)
return contains_recurse(candidate, want);
}
static void show_tag_lines(const unsigned char *sha1, int lines)
{
int i;
unsigned long size;
enum object_type type;
char *buf, *sp, *eol;
size_t len;
buf = read_sha1_file(sha1, &type, &size);
if (!buf)
die_errno("unable to read object %s", sha1_to_hex(sha1));
if (type != OBJ_COMMIT && type != OBJ_TAG)
goto free_return;
if (!size)
die("an empty %s object %s?",
typename(type), sha1_to_hex(sha1));
/* skip header */
sp = strstr(buf, "\n\n");
if (!sp)
goto free_return;
/* only take up to "lines" lines, and strip the signature from a tag */
if (type == OBJ_TAG)
size = parse_signature(buf, size);
for (i = 0, sp += 2; i < lines && sp < buf + size; i++) {
if (i)
printf("\n ");
eol = memchr(sp, '\n', size - (sp - buf));
len = eol ? eol - sp : size - (sp - buf);
fwrite(sp, len, 1, stdout);
if (!eol)
break;
sp = eol + 1;
}
free_return:
free(buf);
}
static int show_reference(const char *refname, const unsigned char *sha1,
int flag, void *cb_data)
{
struct tag_filter *filter = cb_data;
if (match_pattern(filter->patterns, refname)) {
int i;
unsigned long size;
enum object_type type;
char *buf, *sp, *eol;
size_t len;
if (filter->with_commit) {
struct commit *commit;
@ -110,33 +143,8 @@ static int show_reference(const char *refname, const unsigned char *sha1,
return 0;
}
printf("%-15s ", refname);
buf = read_sha1_file(sha1, &type, &size);
if (!buf || !size)
return 0;
/* skip header */
sp = strstr(buf, "\n\n");
if (!sp) {
free(buf);
return 0;
}
/* only take up to "lines" lines, and strip the signature */
size = parse_signature(buf, size);
for (i = 0, sp += 2;
i < filter->lines && sp < buf + size;
i++) {
if (i)
printf("\n ");
eol = memchr(sp, '\n', size - (sp - buf));
len = eol ? eol - sp : size - (sp - buf);
fwrite(sp, len, 1, stdout);
if (!eol)
break;
sp = eol + 1;
}
show_tag_lines(sha1, filter->lines);
putchar('\n');
free(buf);
}
return 0;

13
t/t7004-tag.sh
View File

@ -586,6 +586,19 @@ test_expect_success \
test_cmp expect actual
'
test_expect_success 'annotations for blobs are empty' '
blob=$(git hash-object -w --stdin <<-\EOF
Blob paragraph 1.
Blob paragraph 2.
EOF
) &&
git tag tag-blob $blob &&
echo "tag-blob " >expect &&
git tag -n1 -l tag-blob >actual &&
test_cmp expect actual
'
# trying to verify annotated non-signed tags:
test_expect_success GPG \