NULL
};
+#define STRCMP_SORT 0 /* must be zero */
+#define VERCMP_SORT 1
+#define SORT_MASK 0x7fff
+#define REVERSE_SORT 0x8000
+
+static int tag_sort;
+
struct tag_filter {
const char **patterns;
int lines;
+ int sort;
+ struct string_list tags;
struct commit_list *with_commit;
};
if (!*patterns)
return 1;
for (; *patterns; patterns++)
- if (!fnmatch(*patterns, ref, 0))
+ if (!wildmatch(*patterns, ref, 0, NULL))
return 1;
return 0;
}
return 0;
}
-static int contains_recurse(struct commit *candidate,
+enum contains_result {
+ CONTAINS_UNKNOWN = -1,
+ CONTAINS_NO = 0,
+ CONTAINS_YES = 1
+};
+
+/*
+ * Test whether the candidate or one of its parents is contained in the list.
+ * Do not recurse to find out, though, but return -1 if inconclusive.
+ */
+static enum contains_result contains_test(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;
if (candidate->object.flags & UNINTERESTING)
return 0;
/* or are we it? */
- if (in_commit_list(want, candidate))
+ if (in_commit_list(want, candidate)) {
+ candidate->object.flags |= TMP_MARK;
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;
+ return -1;
+}
+
+/*
+ * Mimicking the real stack, this stack lives on the heap, avoiding stack
+ * overflows.
+ *
+ * At each recursion step, the stack items points to the commits whose
+ * ancestors are to be inspected.
+ */
+struct stack {
+ int nr, alloc;
+ struct stack_entry {
+ struct commit *commit;
+ struct commit_list *parents;
+ } *stack;
+};
+
+static void push_to_stack(struct commit *candidate, struct stack *stack)
+{
+ int index = stack->nr++;
+ ALLOC_GROW(stack->stack, stack->nr, stack->alloc);
+ stack->stack[index].commit = candidate;
+ stack->stack[index].parents = candidate->parents;
}
-static int contains(struct commit *candidate, const struct commit_list *want)
+static enum contains_result contains(struct commit *candidate,
+ const struct commit_list *want)
{
- return contains_recurse(candidate, want);
+ struct stack stack = { 0, 0, NULL };
+ int result = contains_test(candidate, want);
+
+ if (result != CONTAINS_UNKNOWN)
+ return result;
+
+ push_to_stack(candidate, &stack);
+ while (stack.nr) {
+ struct stack_entry *entry = &stack.stack[stack.nr - 1];
+ struct commit *commit = entry->commit;
+ struct commit_list *parents = entry->parents;
+
+ if (!parents) {
+ commit->object.flags |= UNINTERESTING;
+ stack.nr--;
+ }
+ /*
+ * If we just popped the stack, parents->item has been marked,
+ * therefore contains_test will return a meaningful 0 or 1.
+ */
+ else switch (contains_test(parents->item, want)) {
+ case CONTAINS_YES:
+ commit->object.flags |= TMP_MARK;
+ stack.nr--;
+ break;
+ case CONTAINS_NO:
+ entry->parents = parents->next;
+ break;
+ case CONTAINS_UNKNOWN:
+ push_to_stack(parents->item, &stack);
+ break;
+ }
+ }
+ free(stack.stack);
+ return contains_test(candidate, want);
}
static void show_tag_lines(const unsigned char *sha1, int lines)
return 0;
if (!filter->lines) {
- printf("%s\n", refname);
+ if (filter->sort)
+ string_list_append(&filter->tags, refname);
+ else
+ printf("%s\n", refname);
return 0;
}
printf("%-15s ", refname);
return 0;
}
+static int sort_by_version(const void *a_, const void *b_)
+{
+ const struct string_list_item *a = a_;
+ const struct string_list_item *b = b_;
+ return versioncmp(a->string, b->string);
+}
+
static int list_tags(const char **patterns, int lines,
- struct commit_list *with_commit)
+ struct commit_list *with_commit, int sort)
{
struct tag_filter filter;
filter.patterns = patterns;
filter.lines = lines;
+ filter.sort = sort;
filter.with_commit = with_commit;
+ memset(&filter.tags, 0, sizeof(filter.tags));
+ filter.tags.strdup_strings = 1;
for_each_tag_ref(show_reference, (void *) &filter);
-
+ if (sort) {
+ int i;
+ if ((sort & SORT_MASK) == VERCMP_SORT)
+ qsort(filter.tags.items, filter.tags.nr,
+ sizeof(struct string_list_item), sort_by_version);
+ if (sort & REVERSE_SORT)
+ for (i = filter.tags.nr - 1; i >= 0; i--)
+ printf("%s\n", filter.tags.items[i].string);
+ else
+ for (i = 0; i < filter.tags.nr; i++)
+ printf("%s\n", filter.tags.items[i].string);
+ string_list_clear(&filter.tags, 0);
+ }
return 0;
}
}
static const char tag_template[] =
- N_("\nWrite a tag message\n"
+ N_("\nWrite a message for tag:\n %s\n"
"Lines starting with '%c' will be ignored.\n");
static const char tag_template_nocleanup[] =
- N_("\nWrite a tag message\n"
+ N_("\nWrite a message for tag:\n %s\n"
"Lines starting with '%c' will be kept; you may remove them"
" yourself if you want to.\n");
+/*
+ * Parse a sort string, and return 0 if parsed successfully. Will return
+ * non-zero when the sort string does not parse into a known type. If var is
+ * given, the error message becomes a warning and includes information about
+ * the configuration value.
+ */
+static int parse_sort_string(const char *var, const char *arg, int *sort)
+{
+ int type = 0, flags = 0;
+
+ if (skip_prefix(arg, "-", &arg))
+ flags |= REVERSE_SORT;
+
+ if (skip_prefix(arg, "version:", &arg) || skip_prefix(arg, "v:", &arg))
+ type = VERCMP_SORT;
+ else
+ type = STRCMP_SORT;
+
+ if (strcmp(arg, "refname")) {
+ if (!var)
+ return error(_("unsupported sort specification '%s'"), arg);
+ else {
+ warning(_("unsupported sort specification '%s' in variable '%s'"),
+ var, arg);
+ return -1;
+ }
+ }
+
+ *sort = (type | flags);
+
+ return 0;
+}
+
static int git_tag_config(const char *var, const char *value, void *cb)
{
- int status = git_gpg_config(var, value, cb);
+ int status;
+
+ if (!strcmp(var, "tag.sort")) {
+ if (!value)
+ return config_error_nonbool(var);
+ parse_sort_string(var, value, &tag_sort);
+ return 0;
+ }
+
+ status = git_gpg_config(var, value, cb);
if (status)
return status;
if (starts_with(var, "column."))
struct strbuf buf = STRBUF_INIT;
strbuf_addch(&buf, '\n');
if (opt->cleanup_mode == CLEANUP_ALL)
- strbuf_commented_addf(&buf, _(tag_template), comment_line_char);
+ strbuf_commented_addf(&buf, _(tag_template), tag, comment_line_char);
else
- strbuf_commented_addf(&buf, _(tag_template_nocleanup), comment_line_char);
+ strbuf_commented_addf(&buf, _(tag_template_nocleanup), tag, comment_line_char);
write_or_die(fd, buf.buf, buf.len);
strbuf_release(&buf);
}
return 0;
}
+static int parse_opt_sort(const struct option *opt, const char *arg, int unset)
+{
+ int *sort = opt->value;
+
+ return parse_sort_string(NULL, arg, sort);
+}
+
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];
const char *object_ref, *tag;
- struct ref_lock *lock;
struct create_tag_options opt;
char *cleanup_arg = NULL;
int annotate = 0, force = 0, lines = -1;
const char *msgfile = NULL, *keyid = NULL;
struct msg_arg msg = { 0, STRBUF_INIT };
struct commit_list *with_commit = NULL;
+ struct ref_transaction *transaction;
+ struct strbuf err = STRBUF_INIT;
struct option options[] = {
OPT_CMDMODE('l', "list", &cmdmode, N_("list tag names"), 'l'),
{ OPTION_INTEGER, 'n', NULL, &lines, N_("n"),
OPT_BOOL('s', "sign", &opt.sign, N_("annotated and GPG-signed tag")),
OPT_STRING(0, "cleanup", &cleanup_arg, N_("mode"),
N_("how to strip spaces and #comments from message")),
- OPT_STRING('u', "local-user", &keyid, N_("key id"),
+ OPT_STRING('u', "local-user", &keyid, N_("key-id"),
N_("use another key to sign the tag")),
OPT__FORCE(&force, N_("replace the tag if exists")),
OPT_COLUMN(0, "column", &colopts, N_("show tag list in columns")),
+ {
+ OPTION_CALLBACK, 0, "sort", &tag_sort, N_("type"), N_("sort tags"),
+ PARSE_OPT_NONEG, parse_opt_sort
+ },
OPT_GROUP(N_("Tag listing options")),
{
PARSE_OPT_LASTARG_DEFAULT,
parse_opt_with_commit, (intptr_t)"HEAD",
},
+ {
+ OPTION_CALLBACK, 0, "with", &with_commit, N_("commit"),
+ N_("print only tags that contain the commit"),
+ PARSE_OPT_HIDDEN | PARSE_OPT_LASTARG_DEFAULT,
+ parse_opt_with_commit, (intptr_t)"HEAD",
+ },
{
OPTION_CALLBACK, 0, "points-at", NULL, N_("object"),
N_("print only tags of the object"), 0, parse_opt_points_at
copts.padding = 2;
run_column_filter(colopts, &copts);
}
- ret = list_tags(argv, lines == -1 ? 0 : lines, with_commit);
+ if (lines != -1 && tag_sort)
+ die(_("--sort and -n are incompatible"));
+ ret = list_tags(argv, lines == -1 ? 0 : lines, with_commit, tag_sort);
if (column_active(colopts))
stop_column_filter();
return ret;
if (annotate)
create_tag(object, tag, &buf, &opt, prev, object);
- lock = lock_any_ref_for_update(ref.buf, prev, 0, NULL);
- if (!lock)
- die(_("%s: cannot lock the ref"), ref.buf);
- if (write_ref_sha1(lock, object, NULL) < 0)
- die(_("%s: cannot update the ref"), ref.buf);
+ transaction = ref_transaction_begin(&err);
+ if (!transaction ||
+ ref_transaction_update(transaction, ref.buf, object, prev,
+ 0, 1, NULL, &err) ||
+ ref_transaction_commit(transaction, &err))
+ die("%s", err.buf);
+ ref_transaction_free(transaction);
if (force && !is_null_sha1(prev) && hashcmp(prev, object))
printf(_("Updated tag '%s' (was %s)\n"), tag, find_unique_abbrev(prev, DEFAULT_ABBREV));
+ strbuf_release(&err);
strbuf_release(&buf);
strbuf_release(&ref);
return 0;