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Diffstat (limited to 'builtin/tag.c')
-rw-r--r--builtin/tag.c72
1 files changed, 40 insertions, 32 deletions
diff --git a/builtin/tag.c b/builtin/tag.c
index 31f02e8..03df16a 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -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;