1 files changed, 0 insertions, 624 deletions
diff --git a/third_party/git/builtin/replace.c b/third_party/git/builtin/replace.c
deleted file mode 100644
index cd4876591174..000000000000
--- a/third_party/git/builtin/replace.c
+++ /dev/null
@@ -1,624 +0,0 @@
-/*
- * Builtin "git replace"
- *
- * Copyright (c) 2008 Christian Couder <chriscool@tuxfamily.org>
- *
- * Based on builtin/tag.c by Kristian Høgsberg <krh@redhat.com>
- * and Carlos Rica <jasampler@gmail.com> that was itself based on
- * git-tag.sh and mktag.c by Linus Torvalds.
- */
-
-#include "cache.h"
-#include "config.h"
-#include "builtin.h"
-#include "refs.h"
-#include "parse-options.h"
-#include "run-command.h"
-#include "object-store.h"
-#include "repository.h"
-#include "tag.h"
-
-static const char * const git_replace_usage[] = {
-	N_("git replace [-f] <object> <replacement>"),
-	N_("git replace [-f] --edit <object>"),
-	N_("git replace [-f] --graft <commit> [<parent>...]"),
-	N_("git replace [-f] --convert-graft-file"),
-	N_("git replace -d <object>..."),
-	N_("git replace [--format=<format>] [-l [<pattern>]]"),
-	NULL
-};
-
-enum replace_format {
-	REPLACE_FORMAT_SHORT,
-	REPLACE_FORMAT_MEDIUM,
-	REPLACE_FORMAT_LONG
-};
-
-struct show_data {
-	const char *pattern;
-	enum replace_format format;
-};
-
-static int show_reference(struct repository *r, const char *refname,
-			  const struct object_id *oid,
-			  int flag, void *cb_data)
-{
-	struct show_data *data = cb_data;
-
-	if (!wildmatch(data->pattern, refname, 0)) {
-		if (data->format == REPLACE_FORMAT_SHORT)
-			printf("%s\n", refname);
-		else if (data->format == REPLACE_FORMAT_MEDIUM)
-			printf("%s -> %s\n", refname, oid_to_hex(oid));
-		else { /* data->format == REPLACE_FORMAT_LONG */
-			struct object_id object;
-			enum object_type obj_type, repl_type;
-
-			if (get_oid(refname, &object))
-				return error(_("failed to resolve '%s' as a valid ref"), refname);
-
-			obj_type = oid_object_info(r, &object, NULL);
-			repl_type = oid_object_info(r, oid, NULL);
-
-			printf("%s (%s) -> %s (%s)\n", refname, type_name(obj_type),
-			       oid_to_hex(oid), type_name(repl_type));
-		}
-	}
-
-	return 0;
-}
-
-static int list_replace_refs(const char *pattern, const char *format)
-{
-	struct show_data data;
-
-	if (pattern == NULL)
-		pattern = "*";
-	data.pattern = pattern;
-
-	if (format == NULL || *format == '\0' || !strcmp(format, "short"))
-		data.format = REPLACE_FORMAT_SHORT;
-	else if (!strcmp(format, "medium"))
-		data.format = REPLACE_FORMAT_MEDIUM;
-	else if (!strcmp(format, "long"))
-		data.format = REPLACE_FORMAT_LONG;
-	/*
-	 * Please update _git_replace() in git-completion.bash when
-	 * you add new format
-	 */
-	else
-		return error(_("invalid replace format '%s'\n"
-			       "valid formats are 'short', 'medium' and 'long'"),
-			     format);
-
-	for_each_replace_ref(the_repository, show_reference, (void *)&data);
-
-	return 0;
-}
-
-typedef int (*each_replace_name_fn)(const char *name, const char *ref,
-				    const struct object_id *oid);
-
-static int for_each_replace_name(const char **argv, each_replace_name_fn fn)
-{
-	const char **p, *full_hex;
-	struct strbuf ref = STRBUF_INIT;
-	size_t base_len;
-	int had_error = 0;
-	struct object_id oid;
-
-	strbuf_addstr(&ref, git_replace_ref_base);
-	base_len = ref.len;
-
-	for (p = argv; *p; p++) {
-		if (get_oid(*p, &oid)) {
-			error("failed to resolve '%s' as a valid ref", *p);
-			had_error = 1;
-			continue;
-		}
-
-		strbuf_setlen(&ref, base_len);
-		strbuf_addstr(&ref, oid_to_hex(&oid));
-		full_hex = ref.buf + base_len;
-
-		if (read_ref(ref.buf, &oid)) {
-			error(_("replace ref '%s' not found"), full_hex);
-			had_error = 1;
-			continue;
-		}
-		if (fn(full_hex, ref.buf, &oid))
-			had_error = 1;
-	}
-	strbuf_release(&ref);
-	return had_error;
-}
-
-static int delete_replace_ref(const char *name, const char *ref,
-			      const struct object_id *oid)
-{
-	if (delete_ref(NULL, ref, oid, 0))
-		return 1;
-	printf_ln(_("Deleted replace ref '%s'"), name);
-	return 0;
-}
-
-static int check_ref_valid(struct object_id *object,
-			    struct object_id *prev,
-			    struct strbuf *ref,
-			    int force)
-{
-	strbuf_reset(ref);
-	strbuf_addf(ref, "%s%s", git_replace_ref_base, oid_to_hex(object));
-	if (check_refname_format(ref->buf, 0))
-		return error(_("'%s' is not a valid ref name"), ref->buf);
-
-	if (read_ref(ref->buf, prev))
-		oidclr(prev);
-	else if (!force)
-		return error(_("replace ref '%s' already exists"), ref->buf);
-	return 0;
-}
-
-static int replace_object_oid(const char *object_ref,
-			       struct object_id *object,
-			       const char *replace_ref,
-			       struct object_id *repl,
-			       int force)
-{
-	struct object_id prev;
-	enum object_type obj_type, repl_type;
-	struct strbuf ref = STRBUF_INIT;
-	struct ref_transaction *transaction;
-	struct strbuf err = STRBUF_INIT;
-	int res = 0;
-
-	obj_type = oid_object_info(the_repository, object, NULL);
-	repl_type = oid_object_info(the_repository, repl, NULL);
-	if (!force && obj_type != repl_type)
-		return error(_("Objects must be of the same type.\n"
-			       "'%s' points to a replaced object of type '%s'\n"
-			       "while '%s' points to a replacement object of "
-			       "type '%s'."),
-			     object_ref, type_name(obj_type),
-			     replace_ref, type_name(repl_type));
-
-	if (check_ref_valid(object, &prev, &ref, force)) {
-		strbuf_release(&ref);
-		return -1;
-	}
-
-	transaction = ref_transaction_begin(&err);
-	if (!transaction ||
-	    ref_transaction_update(transaction, ref.buf, repl, &prev,
-				   0, NULL, &err) ||
-	    ref_transaction_commit(transaction, &err))
-		res = error("%s", err.buf);
-
-	ref_transaction_free(transaction);
-	strbuf_release(&ref);
-	return res;
-}
-
-static int replace_object(const char *object_ref, const char *replace_ref, int force)
-{
-	struct object_id object, repl;
-
-	if (get_oid(object_ref, &object))
-		return error(_("failed to resolve '%s' as a valid ref"),
-			     object_ref);
-	if (get_oid(replace_ref, &repl))
-		return error(_("failed to resolve '%s' as a valid ref"),
-			     replace_ref);
-
-	return replace_object_oid(object_ref, &object, replace_ref, &repl, force);
-}
-
-/*
- * Write the contents of the object named by "sha1" to the file "filename".
- * If "raw" is true, then the object's raw contents are printed according to
- * "type". Otherwise, we pretty-print the contents for human editing.
- */
-static int export_object(const struct object_id *oid, enum object_type type,
-			  int raw, const char *filename)
-{
-	struct child_process cmd = CHILD_PROCESS_INIT;
-	int fd;
-
-	fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666);
-	if (fd < 0)
-		return error_errno(_("unable to open %s for writing"), filename);
-
-	strvec_push(&cmd.args, "--no-replace-objects");
-	strvec_push(&cmd.args, "cat-file");
-	if (raw)
-		strvec_push(&cmd.args, type_name(type));
-	else
-		strvec_push(&cmd.args, "-p");
-	strvec_push(&cmd.args, oid_to_hex(oid));
-	cmd.git_cmd = 1;
-	cmd.out = fd;
-
-	if (run_command(&cmd))
-		return error(_("cat-file reported failure"));
-	return 0;
-}
-
-/*
- * Read a previously-exported (and possibly edited) object back from "filename",
- * interpreting it as "type", and writing the result to the object database.
- * The sha1 of the written object is returned via sha1.
- */
-static int import_object(struct object_id *oid, enum object_type type,
-			  int raw, const char *filename)
-{
-	int fd;
-
-	fd = open(filename, O_RDONLY);
-	if (fd < 0)
-		return error_errno(_("unable to open %s for reading"), filename);
-
-	if (!raw && type == OBJ_TREE) {
-		const char *argv[] = { "mktree", NULL };
-		struct child_process cmd = CHILD_PROCESS_INIT;
-		struct strbuf result = STRBUF_INIT;
-
-		cmd.argv = argv;
-		cmd.git_cmd = 1;
-		cmd.in = fd;
-		cmd.out = -1;
-
-		if (start_command(&cmd)) {
-			close(fd);
-			return error(_("unable to spawn mktree"));
-		}
-
-		if (strbuf_read(&result, cmd.out, the_hash_algo->hexsz + 1) < 0) {
-			error_errno(_("unable to read from mktree"));
-			close(fd);
-			close(cmd.out);
-			return -1;
-		}
-		close(cmd.out);
-
-		if (finish_command(&cmd)) {
-			strbuf_release(&result);
-			return error(_("mktree reported failure"));
-		}
-		if (get_oid_hex(result.buf, oid) < 0) {
-			strbuf_release(&result);
-			return error(_("mktree did not return an object name"));
-		}
-
-		strbuf_release(&result);
-	} else {
-		struct stat st;
-		int flags = HASH_FORMAT_CHECK | HASH_WRITE_OBJECT;
-
-		if (fstat(fd, &st) < 0) {
-			error_errno(_("unable to fstat %s"), filename);
-			close(fd);
-			return -1;
-		}
-		if (index_fd(the_repository->index, oid, fd, &st, type, NULL, flags) < 0)
-			return error(_("unable to write object to database"));
-		/* index_fd close()s fd for us */
-	}
-
-	/*
-	 * No need to close(fd) here; both run-command and index-fd
-	 * will have done it for us.
-	 */
-	return 0;
-}
-
-static int edit_and_replace(const char *object_ref, int force, int raw)
-{
-	char *tmpfile;
-	enum object_type type;
-	struct object_id old_oid, new_oid, prev;
-	struct strbuf ref = STRBUF_INIT;
-
-	if (get_oid(object_ref, &old_oid) < 0)
-		return error(_("not a valid object name: '%s'"), object_ref);
-
-	type = oid_object_info(the_repository, &old_oid, NULL);
-	if (type < 0)
-		return error(_("unable to get object type for %s"),
-			     oid_to_hex(&old_oid));
-
-	if (check_ref_valid(&old_oid, &prev, &ref, force)) {
-		strbuf_release(&ref);
-		return -1;
-	}
-	strbuf_release(&ref);
-
-	tmpfile = git_pathdup("REPLACE_EDITOBJ");
-	if (export_object(&old_oid, type, raw, tmpfile)) {
-		free(tmpfile);
-		return -1;
-	}
-	if (launch_editor(tmpfile, NULL, NULL) < 0) {
-		free(tmpfile);
-		return error(_("editing object file failed"));
-	}
-	if (import_object(&new_oid, type, raw, tmpfile)) {
-		free(tmpfile);
-		return -1;
-	}
-	free(tmpfile);
-
-	if (oideq(&old_oid, &new_oid))
-		return error(_("new object is the same as the old one: '%s'"), oid_to_hex(&old_oid));
-
-	return replace_object_oid(object_ref, &old_oid, "replacement", &new_oid, force);
-}
-
-static int replace_parents(struct strbuf *buf, int argc, const char **argv)
-{
-	struct strbuf new_parents = STRBUF_INIT;
-	const char *parent_start, *parent_end;
-	int i;
-	const unsigned hexsz = the_hash_algo->hexsz;
-
-	/* find existing parents */
-	parent_start = buf->buf;
-	parent_start += hexsz + 6; /* "tree " + "hex sha1" + "\n" */
-	parent_end = parent_start;
-
-	while (starts_with(parent_end, "parent "))
-		parent_end += hexsz + 8; /* "parent " + "hex sha1" + "\n" */
-
-	/* prepare new parents */
-	for (i = 0; i < argc; i++) {
-		struct object_id oid;
-		struct commit *commit;
-
-		if (get_oid(argv[i], &oid) < 0) {
-			strbuf_release(&new_parents);
-			return error(_("not a valid object name: '%s'"),
-				     argv[i]);
-		}
-		commit = lookup_commit_reference(the_repository, &oid);
-		if (!commit) {
-			strbuf_release(&new_parents);
-			return error(_("could not parse %s as a commit"), argv[i]);
-		}
-		strbuf_addf(&new_parents, "parent %s\n", oid_to_hex(&commit->object.oid));
-	}
-
-	/* replace existing parents with new ones */
-	strbuf_splice(buf, parent_start - buf->buf, parent_end - parent_start,
-		      new_parents.buf, new_parents.len);
-
-	strbuf_release(&new_parents);
-	return 0;
-}
-
-struct check_mergetag_data {
-	int argc;
-	const char **argv;
-};
-
-static int check_one_mergetag(struct commit *commit,
-			       struct commit_extra_header *extra,
-			       void *data)
-{
-	struct check_mergetag_data *mergetag_data = (struct check_mergetag_data *)data;
-	const char *ref = mergetag_data->argv[0];
-	struct object_id tag_oid;
-	struct tag *tag;
-	int i;
-
-	hash_object_file(the_hash_algo, extra->value, extra->len,
-			 type_name(OBJ_TAG), &tag_oid);
-	tag = lookup_tag(the_repository, &tag_oid);
-	if (!tag)
-		return error(_("bad mergetag in commit '%s'"), ref);
-	if (parse_tag_buffer(the_repository, tag, extra->value, extra->len))
-		return error(_("malformed mergetag in commit '%s'"), ref);
-
-	/* iterate over new parents */
-	for (i = 1; i < mergetag_data->argc; i++) {
-		struct object_id oid;
-		if (get_oid(mergetag_data->argv[i], &oid) < 0)
-			return error(_("not a valid object name: '%s'"),
-				     mergetag_data->argv[i]);
-		if (oideq(get_tagged_oid(tag), &oid))
-			return 0; /* found */
-	}
-
-	return error(_("original commit '%s' contains mergetag '%s' that is "
-		       "discarded; use --edit instead of --graft"), ref,
-		     oid_to_hex(&tag_oid));
-}
-
-static int check_mergetags(struct commit *commit, int argc, const char **argv)
-{
-	struct check_mergetag_data mergetag_data;
-
-	mergetag_data.argc = argc;
-	mergetag_data.argv = argv;
-	return for_each_mergetag(check_one_mergetag, commit, &mergetag_data);
-}
-
-static int create_graft(int argc, const char **argv, int force, int gentle)
-{
-	struct object_id old_oid, new_oid;
-	const char *old_ref = argv[0];
-	struct commit *commit;
-	struct strbuf buf = STRBUF_INIT;
-	const char *buffer;
-	unsigned long size;
-
-	if (get_oid(old_ref, &old_oid) < 0)
-		return error(_("not a valid object name: '%s'"), old_ref);
-	commit = lookup_commit_reference(the_repository, &old_oid);
-	if (!commit)
-		return error(_("could not parse %s"), old_ref);
-
-	buffer = get_commit_buffer(commit, &size);
-	strbuf_add(&buf, buffer, size);
-	unuse_commit_buffer(commit, buffer);
-
-	if (replace_parents(&buf, argc - 1, &argv[1]) < 0) {
-		strbuf_release(&buf);
-		return -1;
-	}
-
-	if (remove_signature(&buf)) {
-		warning(_("the original commit '%s' has a gpg signature"), old_ref);
-		warning(_("the signature will be removed in the replacement commit!"));
-	}
-
-	if (check_mergetags(commit, argc, argv)) {
-		strbuf_release(&buf);
-		return -1;
-	}
-
-	if (write_object_file(buf.buf, buf.len, commit_type, &new_oid)) {
-		strbuf_release(&buf);
-		return error(_("could not write replacement commit for: '%s'"),
-			     old_ref);
-	}
-
-	strbuf_release(&buf);
-
-	if (oideq(&commit->object.oid, &new_oid)) {
-		if (gentle) {
-			warning(_("graft for '%s' unnecessary"),
-				oid_to_hex(&commit->object.oid));
-			return 0;
-		}
-		return error(_("new commit is the same as the old one: '%s'"),
-			     oid_to_hex(&commit->object.oid));
-	}
-
-	return replace_object_oid(old_ref, &commit->object.oid,
-				  "replacement", &new_oid, force);
-}
-
-static int convert_graft_file(int force)
-{
-	const char *graft_file = get_graft_file(the_repository);
-	FILE *fp = fopen_or_warn(graft_file, "r");
-	struct strbuf buf = STRBUF_INIT, err = STRBUF_INIT;
-	struct strvec args = STRVEC_INIT;
-
-	if (!fp)
-		return -1;
-
-	advice_graft_file_deprecated = 0;
-	while (strbuf_getline(&buf, fp) != EOF) {
-		if (*buf.buf == '#')
-			continue;
-
-		strvec_split(&args, buf.buf);
-		if (args.nr && create_graft(args.nr, args.v, force, 1))
-			strbuf_addf(&err, "\n\t%s", buf.buf);
-		strvec_clear(&args);
-	}
-	fclose(fp);
-
-	strbuf_release(&buf);
-
-	if (!err.len)
-		return unlink_or_warn(graft_file);
-
-	warning(_("could not convert the following graft(s):\n%s"), err.buf);
-	strbuf_release(&err);
-
-	return -1;
-}
-
-int cmd_replace(int argc, const char **argv, const char *prefix)
-{
-	int force = 0;
-	int raw = 0;
-	const char *format = NULL;
-	enum {
-		MODE_UNSPECIFIED = 0,
-		MODE_LIST,
-		MODE_DELETE,
-		MODE_EDIT,
-		MODE_GRAFT,
-		MODE_CONVERT_GRAFT_FILE,
-		MODE_REPLACE
-	} cmdmode = MODE_UNSPECIFIED;
-	struct option options[] = {
-		OPT_CMDMODE('l', "list", &cmdmode, N_("list replace refs"), MODE_LIST),
-		OPT_CMDMODE('d', "delete", &cmdmode, N_("delete replace refs"), MODE_DELETE),
-		OPT_CMDMODE('e', "edit", &cmdmode, N_("edit existing object"), MODE_EDIT),
-		OPT_CMDMODE('g', "graft", &cmdmode, N_("change a commit's parents"), MODE_GRAFT),
-		OPT_CMDMODE(0, "convert-graft-file", &cmdmode, N_("convert existing graft file"), MODE_CONVERT_GRAFT_FILE),
-		OPT_BOOL_F('f', "force", &force, N_("replace the ref if it exists"),
-			   PARSE_OPT_NOCOMPLETE),
-		OPT_BOOL(0, "raw", &raw, N_("do not pretty-print contents for --edit")),
-		OPT_STRING(0, "format", &format, N_("format"), N_("use this format")),
-		OPT_END()
-	};
-
-	read_replace_refs = 0;
-	git_config(git_default_config, NULL);
-
-	argc = parse_options(argc, argv, prefix, options, git_replace_usage, 0);
-
-	if (!cmdmode)
-		cmdmode = argc ? MODE_REPLACE : MODE_LIST;
-
-	if (format && cmdmode != MODE_LIST)
-		usage_msg_opt(_("--format cannot be used when not listing"),
-			      git_replace_usage, options);
-
-	if (force &&
-	    cmdmode != MODE_REPLACE &&
-	    cmdmode != MODE_EDIT &&
-	    cmdmode != MODE_GRAFT &&
-	    cmdmode != MODE_CONVERT_GRAFT_FILE)
-		usage_msg_opt(_("-f only makes sense when writing a replacement"),
-			      git_replace_usage, options);
-
-	if (raw && cmdmode != MODE_EDIT)
-		usage_msg_opt(_("--raw only makes sense with --edit"),
-			      git_replace_usage, options);
-
-	switch (cmdmode) {
-	case MODE_DELETE:
-		if (argc < 1)
-			usage_msg_opt(_("-d needs at least one argument"),
-				      git_replace_usage, options);
-		return for_each_replace_name(argv, delete_replace_ref);
-
-	case MODE_REPLACE:
-		if (argc != 2)
-			usage_msg_opt(_("bad number of arguments"),
-				      git_replace_usage, options);
-		return replace_object(argv[0], argv[1], force);
-
-	case MODE_EDIT:
-		if (argc != 1)
-			usage_msg_opt(_("-e needs exactly one argument"),
-				      git_replace_usage, options);
-		return edit_and_replace(argv[0], force, raw);
-
-	case MODE_GRAFT:
-		if (argc < 1)
-			usage_msg_opt(_("-g needs at least one argument"),
-				      git_replace_usage, options);
-		return create_graft(argc, argv, force, 0);
-
-	case MODE_CONVERT_GRAFT_FILE:
-		if (argc != 0)
-			usage_msg_opt(_("--convert-graft-file takes no argument"),
-				      git_replace_usage, options);
-		return !!convert_graft_file(force);
-
-	case MODE_LIST:
-		if (argc > 1)
-			usage_msg_opt(_("only one pattern can be given with -l"),
-				      git_replace_usage, options);
-		return list_replace_refs(argv[0], format);
-
-	default:
-		BUG("invalid cmdmode %d", (int)cmdmode);
-	}
-}