#include "tag.h"
#include "run-command.h"
#include "parse-options.h"
+#include "diff.h"
+#include "revision.h"
static const char * const git_tag_usage[] = {
"git tag [-a|-s|-u <key-id>] [-f] [-m <msg>|-F <file>] <tagname> [<head>]",
"git tag -d <tagname>...",
- "git tag -l [-n[<num>]] [<pattern>]",
+ "git tag -l [-n[<num>]] [<pattern>...]",
"git tag -v <tagname>...",
NULL
};
static char signingkey[1000];
struct tag_filter {
- const char *pattern;
+ const char **patterns;
int lines;
struct commit_list *with_commit;
};
+static int match_pattern(const char **patterns, const char *ref)
+{
+ /* no pattern means match everything */
+ if (!*patterns)
+ return 1;
+ for (; *patterns; patterns++)
+ if (!fnmatch(*patterns, ref, 0))
+ return 1;
+ return 0;
+}
+
+static int in_commit_list(const struct commit_list *want, struct commit *c)
+{
+ for (; want; want = want->next)
+ if (!hashcmp(want->item->object.sha1, c->object.sha1))
+ return 1;
+ return 0;
+}
+
+static int contains_recurse(struct commit *candidate,
+ const struct commit_list *want)
+{
+ struct commit_list *p;
+
+ /* was it previously marked as containing a want commit? */
+ if (candidate->object.flags & TMP_MARK)
+ return 1;
+ /* or marked as not possibly containing a want commit? */
+ if (candidate->object.flags & UNINTERESTING)
+ return 0;
+ /* or are we it? */
+ if (in_commit_list(want, candidate))
+ return 1;
+
+ if (parse_commit(candidate) < 0)
+ return 0;
+
+ /* Otherwise recurse and mark ourselves for future traversals. */
+ for (p = candidate->parents; p; p = p->next) {
+ if (contains_recurse(p->item, want)) {
+ candidate->object.flags |= TMP_MARK;
+ return 1;
+ }
+ }
+ candidate->object.flags |= UNINTERESTING;
+ return 0;
+}
+
+static int contains(struct commit *candidate, const struct commit_list *want)
+{
+ return contains_recurse(candidate, want);
+}
+
static int show_reference(const char *refname, const unsigned char *sha1,
int flag, void *cb_data)
{
struct tag_filter *filter = cb_data;
- if (!fnmatch(filter->pattern, refname, 0)) {
+ if (match_pattern(filter->patterns, refname)) {
int i;
unsigned long size;
enum object_type type;
commit = lookup_commit_reference_gently(sha1, 1);
if (!commit)
return 0;
- if (!is_descendant_of(commit, filter->with_commit))
+ if (!contains(commit, filter->with_commit))
return 0;
}
return 0;
}
-static int list_tags(const char *pattern, int lines,
+static int list_tags(const char **patterns, int lines,
struct commit_list *with_commit)
{
struct tag_filter filter;
- if (pattern == NULL)
- pattern = "*";
-
- filter.pattern = pattern;
+ filter.patterns = patterns;
filter.lines = lines;
filter.with_commit = with_commit;
return 0;
}
+static int strbuf_check_tag_ref(struct strbuf *sb, const char *name)
+{
+ if (name[0] == '-')
+ return CHECK_REF_FORMAT_ERROR;
+
+ strbuf_reset(sb);
+ strbuf_addf(sb, "refs/tags/%s", name);
+
+ return check_ref_format(sb->buf);
+}
+
int cmd_tag(int argc, const char **argv, const char *prefix)
{
struct strbuf buf = STRBUF_INIT;
+ struct strbuf ref = STRBUF_INIT;
unsigned char object[20], prev[20];
- char ref[PATH_MAX];
const char *object_ref, *tag;
struct ref_lock *lock;
if (list + delete + verify > 1)
usage_with_options(git_tag_usage, options);
if (list)
- return list_tags(argv[0], lines == -1 ? 0 : lines,
+ return list_tags(argv, lines == -1 ? 0 : lines,
with_commit);
if (lines != -1)
die(_("-n option is only allowed with -l."));
if (get_sha1(object_ref, object))
die(_("Failed to resolve '%s' as a valid ref."), object_ref);
- if (snprintf(ref, sizeof(ref), "refs/tags/%s", tag) > sizeof(ref) - 1)
- die(_("tag name too long: %.*s..."), 50, tag);
- if (check_ref_format(ref))
+ if (strbuf_check_tag_ref(&ref, tag))
die(_("'%s' is not a valid tag name."), tag);
- if (!resolve_ref(ref, prev, 1, NULL))
+ if (!resolve_ref(ref.buf, prev, 1, NULL))
hashclr(prev);
else if (!force)
die(_("tag '%s' already exists"), tag);
create_tag(object, tag, &buf, msg.given || msgfile,
sign, prev, object);
- lock = lock_any_ref_for_update(ref, prev, 0);
+ lock = lock_any_ref_for_update(ref.buf, prev, 0);
if (!lock)
- die(_("%s: cannot lock the ref"), ref);
+ die(_("%s: cannot lock the ref"), ref.buf);
if (write_ref_sha1(lock, object, NULL) < 0)
- die(_("%s: cannot update the ref"), ref);
+ die(_("%s: cannot update the ref"), ref.buf);
if (force && hashcmp(prev, object))
printf(_("Updated tag '%s' (was %s)\n"), tag, find_unique_abbrev(prev, DEFAULT_ABBREV));
strbuf_release(&buf);
+ strbuf_release(&ref);
return 0;
}