Make git-describe a builtin.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>

1 files changed, 0 insertions, 176 deletions

diff --git a/describe.c b/describe.c
deleted file mode 100644
index 3c2df037e..000000000
--- a/describe.c
+++ /dev/null
@@ -1,176 +0,0 @@
-#include "cache.h"
-#include "commit.h"
-#include "tag.h"
-#include "refs.h"
-
-#define SEEN (1u << 0)
-
-static const char describe_usage[] =
-"git-describe [--all] [--tags] [--abbrev=<n>] <committish>*";
-
-static int all;	/* Default to annotated tags only */
-static int tags;	/* But allow any tags if --tags is specified */
-
-static int abbrev = DEFAULT_ABBREV;
-
-static int names, allocs;
-static struct commit_name {
-	const struct commit *commit;
-	int prio; /* annotated tag = 2, tag = 1, head = 0 */
-	char path[FLEX_ARRAY]; /* more */
-} **name_array = NULL;
-
-static struct commit_name *match(struct commit *cmit)
-{
-	int i = names;
-	struct commit_name **p = name_array;
-
-	while (i-- > 0) {
-		struct commit_name *n = *p++;
-		if (n->commit == cmit)
-			return n;
-	}
-	return NULL;
-}
-
-static void add_to_known_names(const char *path,
-			       const struct commit *commit,
-			       int prio)
-{
-	int idx;
-	int len = strlen(path)+1;
-	struct commit_name *name = xmalloc(sizeof(struct commit_name) + len);
-
-	name->commit = commit;
-	name->prio = prio;
-	memcpy(name->path, path, len);
-	idx = names;
-	if (idx >= allocs) {
-		allocs = (idx + 50) * 3 / 2;
-		name_array = xrealloc(name_array, allocs*sizeof(*name_array));
-	}
-	name_array[idx] = name;
-	names = ++idx;
-}
-
-static int get_name(const char *path, const unsigned char *sha1, int flag, void *cb_data)
-{
-	struct commit *commit = lookup_commit_reference_gently(sha1, 1);
-	struct object *object;
-	int prio;
-
-	if (!commit)
-		return 0;
-	object = parse_object(sha1);
-	/* If --all, then any refs are used.
-	 * If --tags, then any tags are used.
-	 * Otherwise only annotated tags are used.
-	 */
-	if (!strncmp(path, "refs/tags/", 10)) {
-		if (object->type == OBJ_TAG)
-			prio = 2;
-		else
-			prio = 1;
-	}
-	else
-		prio = 0;
-
-	if (!all) {
-		if (!prio)
-			return 0;
-		if (!tags && prio < 2)
-			return 0;
-	}
-	add_to_known_names(all ? path + 5 : path + 10, commit, prio);
-	return 0;
-}
-
-static int compare_names(const void *_a, const void *_b)
-{
-	struct commit_name *a = *(struct commit_name **)_a;
-	struct commit_name *b = *(struct commit_name **)_b;
-	unsigned long a_date = a->commit->date;
-	unsigned long b_date = b->commit->date;
-
-	if (a->prio != b->prio)
-		return b->prio - a->prio;
-	return (a_date > b_date) ? -1 : (a_date == b_date) ? 0 : 1;
-}
-
-static void describe(const char *arg, int last_one)
-{
-	unsigned char sha1[20];
-	struct commit *cmit;
-	struct commit_list *list;
-	static int initialized = 0;
-	struct commit_name *n;
-
-	if (get_sha1(arg, sha1))
-		die("Not a valid object name %s", arg);
-	cmit = lookup_commit_reference(sha1);
-	if (!cmit)
-		die("%s is not a valid '%s' object", arg, commit_type);
-
-	if (!initialized) {
-		initialized = 1;
-		for_each_ref(get_name, NULL);
-		qsort(name_array, names, sizeof(*name_array), compare_names);
-	}
-
-	n = match(cmit);
-	if (n) {
-		printf("%s\n", n->path);
-		return;
-	}
-
-	list = NULL;
-	commit_list_insert(cmit, &list);
-	while (list) {
-		struct commit *c = pop_most_recent_commit(&list, SEEN);
-		n = match(c);
-		if (n) {
-			printf("%s-g%s\n", n->path,
-			       find_unique_abbrev(cmit->object.sha1, abbrev));
-			if (!last_one)
-				clear_commit_marks(cmit, SEEN);
-			return;
-		}
-	}
-	die("cannot describe '%s'", sha1_to_hex(cmit->object.sha1));
-}
-
-int main(int argc, char **argv)
-{
-	int i;
-
-	for (i = 1; i < argc; i++) {
-		const char *arg = argv[i];
-
-		if (*arg != '-')
-			break;
-		else if (!strcmp(arg, "--all"))
-			all = 1;
-		else if (!strcmp(arg, "--tags"))
-			tags = 1;
-		else if (!strncmp(arg, "--abbrev=", 9)) {
-			abbrev = strtoul(arg + 9, NULL, 10);
-			if (abbrev < MINIMUM_ABBREV || 40 < abbrev)
-				abbrev = DEFAULT_ABBREV;
-		}
-		else
-			usage(describe_usage);
-	}
-
-	setup_git_directory();
-	save_commit_buffer = 0;
-
-	if (argc <= i)
-		describe("HEAD", 1);
-	else
-		while (i < argc) {
-			describe(argv[i], (i == argc - 1));
-			i++;
-		}
-
-	return 0;
-}