1 files changed, 0 insertions, 517 deletions
diff --git a/third_party/git/builtin/name-rev.c b/third_party/git/builtin/name-rev.c
deleted file mode 100644
index c785fe16ba..0000000000
--- a/third_party/git/builtin/name-rev.c
+++ /dev/null
@@ -1,517 +0,0 @@
-#include "builtin.h"
-#include "cache.h"
-#include "repository.h"
-#include "config.h"
-#include "commit.h"
-#include "tag.h"
-#include "refs.h"
-#include "parse-options.h"
-#include "sha1-lookup.h"
-#include "commit-slab.h"
-
-#define CUTOFF_DATE_SLOP 86400 /* one day */
-
-typedef struct rev_name {
-	const char *tip_name;
-	timestamp_t taggerdate;
-	int generation;
-	int distance;
-	int from_tag;
-} rev_name;
-
-define_commit_slab(commit_rev_name, struct rev_name *);
-
-static timestamp_t cutoff = TIME_MAX;
-static struct commit_rev_name rev_names;
-
-/* How many generations are maximally preferred over _one_ merge traversal? */
-#define MERGE_TRAVERSAL_WEIGHT 65535
-
-static struct rev_name *get_commit_rev_name(struct commit *commit)
-{
-	struct rev_name **slot = commit_rev_name_peek(&rev_names, commit);
-
-	return slot ? *slot : NULL;
-}
-
-static void set_commit_rev_name(struct commit *commit, struct rev_name *name)
-{
-	*commit_rev_name_at(&rev_names, commit) = name;
-}
-
-static int is_better_name(struct rev_name *name,
-			  timestamp_t taggerdate,
-			  int distance,
-			  int from_tag)
-{
-	/*
-	 * When comparing names based on tags, prefer names
-	 * based on the older tag, even if it is farther away.
-	 */
-	if (from_tag && name->from_tag)
-		return (name->taggerdate > taggerdate ||
-			(name->taggerdate == taggerdate &&
-			 name->distance > distance));
-
-	/*
-	 * We know that at least one of them is a non-tag at this point.
-	 * favor a tag over a non-tag.
-	 */
-	if (name->from_tag != from_tag)
-		return from_tag;
-
-	/*
-	 * We are now looking at two non-tags.  Tiebreak to favor
-	 * shorter hops.
-	 */
-	if (name->distance != distance)
-		return name->distance > distance;
-
-	/* ... or tiebreak to favor older date */
-	if (name->taggerdate != taggerdate)
-		return name->taggerdate > taggerdate;
-
-	/* keep the current one if we cannot decide */
-	return 0;
-}
-
-static void name_rev(struct commit *commit,
-		const char *tip_name, timestamp_t taggerdate,
-		int generation, int distance, int from_tag,
-		int deref)
-{
-	struct rev_name *name = get_commit_rev_name(commit);
-	struct commit_list *parents;
-	int parent_number = 1;
-	char *to_free = NULL;
-
-	parse_commit(commit);
-
-	if (commit->date < cutoff)
-		return;
-
-	if (deref) {
-		tip_name = to_free = xstrfmt("%s^0", tip_name);
-
-		if (generation)
-			die("generation: %d, but deref?", generation);
-	}
-
-	if (name == NULL) {
-		name = xmalloc(sizeof(rev_name));
-		set_commit_rev_name(commit, name);
-		goto copy_data;
-	} else if (is_better_name(name, taggerdate, distance, from_tag)) {
-copy_data:
-		name->tip_name = tip_name;
-		name->taggerdate = taggerdate;
-		name->generation = generation;
-		name->distance = distance;
-		name->from_tag = from_tag;
-	} else {
-		free(to_free);
-		return;
-	}
-
-	for (parents = commit->parents;
-			parents;
-			parents = parents->next, parent_number++) {
-		if (parent_number > 1) {
-			size_t len;
-			char *new_name;
-
-			strip_suffix(tip_name, "^0", &len);
-			if (generation > 0)
-				new_name = xstrfmt("%.*s~%d^%d", (int)len, tip_name,
-						   generation, parent_number);
-			else
-				new_name = xstrfmt("%.*s^%d", (int)len, tip_name,
-						   parent_number);
-
-			name_rev(parents->item, new_name, taggerdate, 0,
-				 distance + MERGE_TRAVERSAL_WEIGHT,
-				 from_tag, 0);
-		} else {
-			name_rev(parents->item, tip_name, taggerdate,
-				 generation + 1, distance + 1,
-				 from_tag, 0);
-		}
-	}
-}
-
-static int subpath_matches(const char *path, const char *filter)
-{
-	const char *subpath = path;
-
-	while (subpath) {
-		if (!wildmatch(filter, subpath, 0))
-			return subpath - path;
-		subpath = strchr(subpath, '/');
-		if (subpath)
-			subpath++;
-	}
-	return -1;
-}
-
-static const char *name_ref_abbrev(const char *refname, int shorten_unambiguous)
-{
-	if (shorten_unambiguous)
-		refname = shorten_unambiguous_ref(refname, 0);
-	else if (starts_with(refname, "refs/heads/"))
-		refname = refname + 11;
-	else if (starts_with(refname, "refs/"))
-		refname = refname + 5;
-	return refname;
-}
-
-struct name_ref_data {
-	int tags_only;
-	int name_only;
-	struct string_list ref_filters;
-	struct string_list exclude_filters;
-};
-
-static struct tip_table {
-	struct tip_table_entry {
-		struct object_id oid;
-		const char *refname;
-	} *table;
-	int nr;
-	int alloc;
-	int sorted;
-} tip_table;
-
-static void add_to_tip_table(const struct object_id *oid, const char *refname,
-			     int shorten_unambiguous)
-{
-	refname = name_ref_abbrev(refname, shorten_unambiguous);
-
-	ALLOC_GROW(tip_table.table, tip_table.nr + 1, tip_table.alloc);
-	oidcpy(&tip_table.table[tip_table.nr].oid, oid);
-	tip_table.table[tip_table.nr].refname = xstrdup(refname);
-	tip_table.nr++;
-	tip_table.sorted = 0;
-}
-
-static int tipcmp(const void *a_, const void *b_)
-{
-	const struct tip_table_entry *a = a_, *b = b_;
-	return oidcmp(&a->oid, &b->oid);
-}
-
-static int name_ref(const char *path, const struct object_id *oid, int flags, void *cb_data)
-{
-	struct object *o = parse_object(the_repository, oid);
-	struct name_ref_data *data = cb_data;
-	int can_abbreviate_output = data->tags_only && data->name_only;
-	int deref = 0;
-	timestamp_t taggerdate = TIME_MAX;
-
-	if (data->tags_only && !starts_with(path, "refs/tags/"))
-		return 0;
-
-	if (data->exclude_filters.nr) {
-		struct string_list_item *item;
-
-		for_each_string_list_item(item, &data->exclude_filters) {
-			if (subpath_matches(path, item->string) >= 0)
-				return 0;
-		}
-	}
-
-	if (data->ref_filters.nr) {
-		struct string_list_item *item;
-		int matched = 0;
-
-		/* See if any of the patterns match. */
-		for_each_string_list_item(item, &data->ref_filters) {
-			/*
-			 * Check all patterns even after finding a match, so
-			 * that we can see if a match with a subpath exists.
-			 * When a user asked for 'refs/tags/v*' and 'v1.*',
-			 * both of which match, the user is showing her
-			 * willingness to accept a shortened output by having
-			 * the 'v1.*' in the acceptable refnames, so we
-			 * shouldn't stop when seeing 'refs/tags/v1.4' matches
-			 * 'refs/tags/v*'.  We should show it as 'v1.4'.
-			 */
-			switch (subpath_matches(path, item->string)) {
-			case -1: /* did not match */
-				break;
-			case 0: /* matched fully */
-				matched = 1;
-				break;
-			default: /* matched subpath */
-				matched = 1;
-				can_abbreviate_output = 1;
-				break;
-			}
-		}
-
-		/* If none of the patterns matched, stop now */
-		if (!matched)
-			return 0;
-	}
-
-	add_to_tip_table(oid, path, can_abbreviate_output);
-
-	while (o && o->type == OBJ_TAG) {
-		struct tag *t = (struct tag *) o;
-		if (!t->tagged)
-			break; /* broken repository */
-		o = parse_object(the_repository, &t->tagged->oid);
-		deref = 1;
-		taggerdate = t->date;
-	}
-	if (o && o->type == OBJ_COMMIT) {
-		struct commit *commit = (struct commit *)o;
-		int from_tag = starts_with(path, "refs/tags/");
-
-		if (taggerdate == TIME_MAX)
-			taggerdate = ((struct commit *)o)->date;
-		path = name_ref_abbrev(path, can_abbreviate_output);
-		name_rev(commit, xstrdup(path), taggerdate, 0, 0,
-			 from_tag, deref);
-	}
-	return 0;
-}
-
-static const unsigned char *nth_tip_table_ent(size_t ix, void *table_)
-{
-	struct tip_table_entry *table = table_;
-	return table[ix].oid.hash;
-}
-
-static const char *get_exact_ref_match(const struct object *o)
-{
-	int found;
-
-	if (!tip_table.table || !tip_table.nr)
-		return NULL;
-
-	if (!tip_table.sorted) {
-		QSORT(tip_table.table, tip_table.nr, tipcmp);
-		tip_table.sorted = 1;
-	}
-
-	found = sha1_pos(o->oid.hash, tip_table.table, tip_table.nr,
-			 nth_tip_table_ent);
-	if (0 <= found)
-		return tip_table.table[found].refname;
-	return NULL;
-}
-
-/* may return a constant string or use "buf" as scratch space */
-static const char *get_rev_name(const struct object *o, struct strbuf *buf)
-{
-	struct rev_name *n;
-	struct commit *c;
-
-	if (o->type != OBJ_COMMIT)
-		return get_exact_ref_match(o);
-	c = (struct commit *) o;
-	n = get_commit_rev_name(c);
-	if (!n)
-		return NULL;
-
-	if (!n->generation)
-		return n->tip_name;
-	else {
-		int len = strlen(n->tip_name);
-		if (len > 2 && !strcmp(n->tip_name + len - 2, "^0"))
-			len -= 2;
-		strbuf_reset(buf);
-		strbuf_addf(buf, "%.*s~%d", len, n->tip_name, n->generation);
-		return buf->buf;
-	}
-}
-
-static void show_name(const struct object *obj,
-		      const char *caller_name,
-		      int always, int allow_undefined, int name_only)
-{
-	const char *name;
-	const struct object_id *oid = &obj->oid;
-	struct strbuf buf = STRBUF_INIT;
-
-	if (!name_only)
-		printf("%s ", caller_name ? caller_name : oid_to_hex(oid));
-	name = get_rev_name(obj, &buf);
-	if (name)
-		printf("%s\n", name);
-	else if (allow_undefined)
-		printf("undefined\n");
-	else if (always)
-		printf("%s\n", find_unique_abbrev(oid, DEFAULT_ABBREV));
-	else
-		die("cannot describe '%s'", oid_to_hex(oid));
-	strbuf_release(&buf);
-}
-
-static char const * const name_rev_usage[] = {
-	N_("git name-rev [<options>] <commit>..."),
-	N_("git name-rev [<options>] --all"),
-	N_("git name-rev [<options>] --stdin"),
-	NULL
-};
-
-static void name_rev_line(char *p, struct name_ref_data *data)
-{
-	struct strbuf buf = STRBUF_INIT;
-	int counter = 0;
-	char *p_start;
-	const unsigned hexsz = the_hash_algo->hexsz;
-
-	for (p_start = p; *p; p++) {
-#define ishex(x) (isdigit((x)) || ((x) >= 'a' && (x) <= 'f'))
-		if (!ishex(*p))
-			counter = 0;
-		else if (++counter == hexsz &&
-			 !ishex(*(p+1))) {
-			struct object_id oid;
-			const char *name = NULL;
-			char c = *(p+1);
-			int p_len = p - p_start + 1;
-
-			counter = 0;
-
-			*(p+1) = 0;
-			if (!get_oid(p - (hexsz - 1), &oid)) {
-				struct object *o =
-					lookup_object(the_repository, &oid);
-				if (o)
-					name = get_rev_name(o, &buf);
-			}
-			*(p+1) = c;
-
-			if (!name)
-				continue;
-
-			if (data->name_only)
-				printf("%.*s%s", p_len - hexsz, p_start, name);
-			else
-				printf("%.*s (%s)", p_len, p_start, name);
-			p_start = p + 1;
-		}
-	}
-
-	/* flush */
-	if (p_start != p)
-		fwrite(p_start, p - p_start, 1, stdout);
-
-	strbuf_release(&buf);
-}
-
-int cmd_name_rev(int argc, const char **argv, const char *prefix)
-{
-	struct object_array revs = OBJECT_ARRAY_INIT;
-	int all = 0, transform_stdin = 0, allow_undefined = 1, always = 0, peel_tag = 0;
-	struct name_ref_data data = { 0, 0, STRING_LIST_INIT_NODUP, STRING_LIST_INIT_NODUP };
-	struct option opts[] = {
-		OPT_BOOL(0, "name-only", &data.name_only, N_("print only names (no SHA-1)")),
-		OPT_BOOL(0, "tags", &data.tags_only, N_("only use tags to name the commits")),
-		OPT_STRING_LIST(0, "refs", &data.ref_filters, N_("pattern"),
-				   N_("only use refs matching <pattern>")),
-		OPT_STRING_LIST(0, "exclude", &data.exclude_filters, N_("pattern"),
-				   N_("ignore refs matching <pattern>")),
-		OPT_GROUP(""),
-		OPT_BOOL(0, "all", &all, N_("list all commits reachable from all refs")),
-		OPT_BOOL(0, "stdin", &transform_stdin, N_("read from stdin")),
-		OPT_BOOL(0, "undefined", &allow_undefined, N_("allow to print `undefined` names (default)")),
-		OPT_BOOL(0, "always",     &always,
-			   N_("show abbreviated commit object as fallback")),
-		{
-			/* A Hidden OPT_BOOL */
-			OPTION_SET_INT, 0, "peel-tag", &peel_tag, NULL,
-			N_("dereference tags in the input (internal use)"),
-			PARSE_OPT_NOARG | PARSE_OPT_HIDDEN, NULL, 1,
-		},
-		OPT_END(),
-	};
-
-	init_commit_rev_name(&rev_names);
-	git_config(git_default_config, NULL);
-	argc = parse_options(argc, argv, prefix, opts, name_rev_usage, 0);
-	if (all + transform_stdin + !!argc > 1) {
-		error("Specify either a list, or --all, not both!");
-		usage_with_options(name_rev_usage, opts);
-	}
-	if (all || transform_stdin)
-		cutoff = 0;
-
-	for (; argc; argc--, argv++) {
-		struct object_id oid;
-		struct object *object;
-		struct commit *commit;
-
-		if (get_oid(*argv, &oid)) {
-			fprintf(stderr, "Could not get sha1 for %s. Skipping.\n",
-					*argv);
-			continue;
-		}
-
-		commit = NULL;
-		object = parse_object(the_repository, &oid);
-		if (object) {
-			struct object *peeled = deref_tag(the_repository,
-							  object, *argv, 0);
-			if (peeled && peeled->type == OBJ_COMMIT)
-				commit = (struct commit *)peeled;
-		}
-
-		if (!object) {
-			fprintf(stderr, "Could not get object for %s. Skipping.\n",
-					*argv);
-			continue;
-		}
-
-		if (commit) {
-			if (cutoff > commit->date)
-				cutoff = commit->date;
-		}
-
-		if (peel_tag) {
-			if (!commit) {
-				fprintf(stderr, "Could not get commit for %s. Skipping.\n",
-					*argv);
-				continue;
-			}
-			object = (struct object *)commit;
-		}
-		add_object_array(object, *argv, &revs);
-	}
-
-	if (cutoff)
-		cutoff = cutoff - CUTOFF_DATE_SLOP;
-	for_each_ref(name_ref, &data);
-
-	if (transform_stdin) {
-		char buffer[2048];
-
-		while (!feof(stdin)) {
-			char *p = fgets(buffer, sizeof(buffer), stdin);
-			if (!p)
-				break;
-			name_rev_line(p, &data);
-		}
-	} else if (all) {
-		int i, max;
-
-		max = get_max_object_index();
-		for (i = 0; i < max; i++) {
-			struct object *obj = get_indexed_object(i);
-			if (!obj || obj->type != OBJ_COMMIT)
-				continue;
-			show_name(obj, NULL,
-				  always, allow_undefined, data.name_only);
-		}
-	} else {
-		int i;
-		for (i = 0; i < revs.nr; i++)
-			show_name(revs.objects[i].item, revs.objects[i].name,
-				  always, allow_undefined, data.name_only);
-	}
-
-	UNLEAK(revs);
-	return 0;
-}