1 files changed, 0 insertions, 702 deletions

diff --git a/third_party/git/worktree.c b/third_party/git/worktree.c
deleted file mode 100644
index f84ceae87d38..000000000000
--- a/third_party/git/worktree.c
+++ /dev/null
@@ -1,702 +0,0 @@
-#include "cache.h"
-#include "repository.h"
-#include "refs.h"
-#include "strbuf.h"
-#include "worktree.h"
-#include "dir.h"
-#include "wt-status.h"
-
-void free_worktrees(struct worktree **worktrees)
-{
-	int i = 0;
-
-	for (i = 0; worktrees[i]; i++) {
-		free(worktrees[i]->path);
-		free(worktrees[i]->id);
-		free(worktrees[i]->head_ref);
-		free(worktrees[i]->lock_reason);
-		free(worktrees[i]);
-	}
-	free (worktrees);
-}
-
-/**
- * Update head_oid, head_ref and is_detached of the given worktree
- */
-static void add_head_info(struct worktree *wt)
-{
-	int flags;
-	const char *target;
-
-	target = refs_resolve_ref_unsafe(get_worktree_ref_store(wt),
-					 "HEAD",
-					 0,
-					 &wt->head_oid, &flags);
-	if (!target)
-		return;
-
-	if (flags & REF_ISSYMREF)
-		wt->head_ref = xstrdup(target);
-	else
-		wt->is_detached = 1;
-}
-
-/**
- * get the main worktree
- */
-static struct worktree *get_main_worktree(void)
-{
-	struct worktree *worktree = NULL;
-	struct strbuf worktree_path = STRBUF_INIT;
-
-	strbuf_add_real_path(&worktree_path, get_git_common_dir());
-	strbuf_strip_suffix(&worktree_path, "/.git");
-
-	worktree = xcalloc(1, sizeof(*worktree));
-	worktree->path = strbuf_detach(&worktree_path, NULL);
-	/*
-	 * NEEDSWORK: If this function is called from a secondary worktree and
-	 * config.worktree is present, is_bare_repository_cfg will reflect the
-	 * contents of config.worktree, not the contents of the main worktree.
-	 * This means that worktree->is_bare may be set to 0 even if the main
-	 * worktree is configured to be bare.
-	 */
-	worktree->is_bare = (is_bare_repository_cfg == 1) ||
-		is_bare_repository();
-	add_head_info(worktree);
-	return worktree;
-}
-
-static struct worktree *get_linked_worktree(const char *id)
-{
-	struct worktree *worktree = NULL;
-	struct strbuf path = STRBUF_INIT;
-	struct strbuf worktree_path = STRBUF_INIT;
-
-	if (!id)
-		die("Missing linked worktree name");
-
-	strbuf_git_common_path(&path, the_repository, "worktrees/%s/gitdir", id);
-	if (strbuf_read_file(&worktree_path, path.buf, 0) <= 0)
-		/* invalid gitdir file */
-		goto done;
-	strbuf_rtrim(&worktree_path);
-	strbuf_strip_suffix(&worktree_path, "/.git");
-
-	worktree = xcalloc(1, sizeof(*worktree));
-	worktree->path = strbuf_detach(&worktree_path, NULL);
-	worktree->id = xstrdup(id);
-	add_head_info(worktree);
-
-done:
-	strbuf_release(&path);
-	strbuf_release(&worktree_path);
-	return worktree;
-}
-
-static void mark_current_worktree(struct worktree **worktrees)
-{
-	char *git_dir = absolute_pathdup(get_git_dir());
-	int i;
-
-	for (i = 0; worktrees[i]; i++) {
-		struct worktree *wt = worktrees[i];
-		const char *wt_git_dir = get_worktree_git_dir(wt);
-
-		if (!fspathcmp(git_dir, absolute_path(wt_git_dir))) {
-			wt->is_current = 1;
-			break;
-		}
-	}
-	free(git_dir);
-}
-
-struct worktree **get_worktrees(void)
-{
-	struct worktree **list = NULL;
-	struct strbuf path = STRBUF_INIT;
-	DIR *dir;
-	struct dirent *d;
-	int counter = 0, alloc = 2;
-
-	ALLOC_ARRAY(list, alloc);
-
-	list[counter++] = get_main_worktree();
-
-	strbuf_addf(&path, "%s/worktrees", get_git_common_dir());
-	dir = opendir(path.buf);
-	strbuf_release(&path);
-	if (dir) {
-		while ((d = readdir(dir)) != NULL) {
-			struct worktree *linked = NULL;
-			if (is_dot_or_dotdot(d->d_name))
-				continue;
-
-			if ((linked = get_linked_worktree(d->d_name))) {
-				ALLOC_GROW(list, counter + 1, alloc);
-				list[counter++] = linked;
-			}
-		}
-		closedir(dir);
-	}
-	ALLOC_GROW(list, counter + 1, alloc);
-	list[counter] = NULL;
-
-	mark_current_worktree(list);
-	return list;
-}
-
-const char *get_worktree_git_dir(const struct worktree *wt)
-{
-	if (!wt)
-		return get_git_dir();
-	else if (!wt->id)
-		return get_git_common_dir();
-	else
-		return git_common_path("worktrees/%s", wt->id);
-}
-
-static struct worktree *find_worktree_by_suffix(struct worktree **list,
-						const char *suffix)
-{
-	struct worktree *found = NULL;
-	int nr_found = 0, suffixlen;
-
-	suffixlen = strlen(suffix);
-	if (!suffixlen)
-		return NULL;
-
-	for (; *list && nr_found < 2; list++) {
-		const char	*path	 = (*list)->path;
-		int		 pathlen = strlen(path);
-		int		 start	 = pathlen - suffixlen;
-
-		/* suffix must start at directory boundary */
-		if ((!start || (start > 0 && is_dir_sep(path[start - 1]))) &&
-		    !fspathcmp(suffix, path + start)) {
-			found = *list;
-			nr_found++;
-		}
-	}
-	return nr_found == 1 ? found : NULL;
-}
-
-struct worktree *find_worktree(struct worktree **list,
-			       const char *prefix,
-			       const char *arg)
-{
-	struct worktree *wt;
-	char *to_free = NULL;
-
-	if ((wt = find_worktree_by_suffix(list, arg)))
-		return wt;
-
-	if (prefix)
-		arg = to_free = prefix_filename(prefix, arg);
-	wt = find_worktree_by_path(list, arg);
-	free(to_free);
-	return wt;
-}
-
-struct worktree *find_worktree_by_path(struct worktree **list, const char *p)
-{
-	struct strbuf wt_path = STRBUF_INIT;
-	char *path = real_pathdup(p, 0);
-
-	if (!path)
-		return NULL;
-	for (; *list; list++) {
-		if (!strbuf_realpath(&wt_path, (*list)->path, 0))
-			continue;
-
-		if (!fspathcmp(path, wt_path.buf))
-			break;
-	}
-	free(path);
-	strbuf_release(&wt_path);
-	return *list;
-}
-
-int is_main_worktree(const struct worktree *wt)
-{
-	return !wt->id;
-}
-
-const char *worktree_lock_reason(struct worktree *wt)
-{
-	assert(!is_main_worktree(wt));
-
-	if (!wt->lock_reason_valid) {
-		struct strbuf path = STRBUF_INIT;
-
-		strbuf_addstr(&path, worktree_git_path(wt, "locked"));
-		if (file_exists(path.buf)) {
-			struct strbuf lock_reason = STRBUF_INIT;
-			if (strbuf_read_file(&lock_reason, path.buf, 0) < 0)
-				die_errno(_("failed to read '%s'"), path.buf);
-			strbuf_trim(&lock_reason);
-			wt->lock_reason = strbuf_detach(&lock_reason, NULL);
-		} else
-			wt->lock_reason = NULL;
-		wt->lock_reason_valid = 1;
-		strbuf_release(&path);
-	}
-
-	return wt->lock_reason;
-}
-
-/* convenient wrapper to deal with NULL strbuf */
-static void strbuf_addf_gently(struct strbuf *buf, const char *fmt, ...)
-{
-	va_list params;
-
-	if (!buf)
-		return;
-
-	va_start(params, fmt);
-	strbuf_vaddf(buf, fmt, params);
-	va_end(params);
-}
-
-int validate_worktree(const struct worktree *wt, struct strbuf *errmsg,
-		      unsigned flags)
-{
-	struct strbuf wt_path = STRBUF_INIT;
-	struct strbuf realpath = STRBUF_INIT;
-	char *path = NULL;
-	int err, ret = -1;
-
-	strbuf_addf(&wt_path, "%s/.git", wt->path);
-
-	if (is_main_worktree(wt)) {
-		if (is_directory(wt_path.buf)) {
-			ret = 0;
-			goto done;
-		}
-		/*
-		 * Main worktree using .git file to point to the
-		 * repository would make it impossible to know where
-		 * the actual worktree is if this function is executed
-		 * from another worktree. No .git file support for now.
-		 */
-		strbuf_addf_gently(errmsg,
-				   _("'%s' at main working tree is not the repository directory"),
-				   wt_path.buf);
-		goto done;
-	}
-
-	/*
-	 * Make sure "gitdir" file points to a real .git file and that
-	 * file points back here.
-	 */
-	if (!is_absolute_path(wt->path)) {
-		strbuf_addf_gently(errmsg,
-				   _("'%s' file does not contain absolute path to the working tree location"),
-				   git_common_path("worktrees/%s/gitdir", wt->id));
-		goto done;
-	}
-
-	if (flags & WT_VALIDATE_WORKTREE_MISSING_OK &&
-	    !file_exists(wt->path)) {
-		ret = 0;
-		goto done;
-	}
-
-	if (!file_exists(wt_path.buf)) {
-		strbuf_addf_gently(errmsg, _("'%s' does not exist"), wt_path.buf);
-		goto done;
-	}
-
-	path = xstrdup_or_null(read_gitfile_gently(wt_path.buf, &err));
-	if (!path) {
-		strbuf_addf_gently(errmsg, _("'%s' is not a .git file, error code %d"),
-				   wt_path.buf, err);
-		goto done;
-	}
-
-	strbuf_realpath(&realpath, git_common_path("worktrees/%s", wt->id), 1);
-	ret = fspathcmp(path, realpath.buf);
-
-	if (ret)
-		strbuf_addf_gently(errmsg, _("'%s' does not point back to '%s'"),
-				   wt->path, git_common_path("worktrees/%s", wt->id));
-done:
-	free(path);
-	strbuf_release(&wt_path);
-	strbuf_release(&realpath);
-	return ret;
-}
-
-void update_worktree_location(struct worktree *wt, const char *path_)
-{
-	struct strbuf path = STRBUF_INIT;
-
-	if (is_main_worktree(wt))
-		BUG("can't relocate main worktree");
-
-	strbuf_realpath(&path, path_, 1);
-	if (fspathcmp(wt->path, path.buf)) {
-		write_file(git_common_path("worktrees/%s/gitdir", wt->id),
-			   "%s/.git", path.buf);
-		free(wt->path);
-		wt->path = strbuf_detach(&path, NULL);
-	}
-	strbuf_release(&path);
-}
-
-int is_worktree_being_rebased(const struct worktree *wt,
-			      const char *target)
-{
-	struct wt_status_state state;
-	int found_rebase;
-
-	memset(&state, 0, sizeof(state));
-	found_rebase = wt_status_check_rebase(wt, &state) &&
-		       (state.rebase_in_progress ||
-			state.rebase_interactive_in_progress) &&
-		       state.branch &&
-		       skip_prefix(target, "refs/heads/", &target) &&
-		       !strcmp(state.branch, target);
-	wt_status_state_free_buffers(&state);
-	return found_rebase;
-}
-
-int is_worktree_being_bisected(const struct worktree *wt,
-			       const char *target)
-{
-	struct wt_status_state state;
-	int found_bisect;
-
-	memset(&state, 0, sizeof(state));
-	found_bisect = wt_status_check_bisect(wt, &state) &&
-		       state.branch &&
-		       skip_prefix(target, "refs/heads/", &target) &&
-		       !strcmp(state.branch, target);
-	wt_status_state_free_buffers(&state);
-	return found_bisect;
-}
-
-/*
- * note: this function should be able to detect shared symref even if
- * HEAD is temporarily detached (e.g. in the middle of rebase or
- * bisect). New commands that do similar things should update this
- * function as well.
- */
-const struct worktree *find_shared_symref(const char *symref,
-					  const char *target)
-{
-	const struct worktree *existing = NULL;
-	static struct worktree **worktrees;
-	int i = 0;
-
-	if (worktrees)
-		free_worktrees(worktrees);
-	worktrees = get_worktrees();
-
-	for (i = 0; worktrees[i]; i++) {
-		struct worktree *wt = worktrees[i];
-		const char *symref_target;
-		struct ref_store *refs;
-		int flags;
-
-		if (wt->is_bare)
-			continue;
-
-		if (wt->is_detached && !strcmp(symref, "HEAD")) {
-			if (is_worktree_being_rebased(wt, target)) {
-				existing = wt;
-				break;
-			}
-			if (is_worktree_being_bisected(wt, target)) {
-				existing = wt;
-				break;
-			}
-		}
-
-		refs = get_worktree_ref_store(wt);
-		symref_target = refs_resolve_ref_unsafe(refs, symref, 0,
-							NULL, &flags);
-		if ((flags & REF_ISSYMREF) &&
-		    symref_target && !strcmp(symref_target, target)) {
-			existing = wt;
-			break;
-		}
-	}
-
-	return existing;
-}
-
-int submodule_uses_worktrees(const char *path)
-{
-	char *submodule_gitdir;
-	struct strbuf sb = STRBUF_INIT, err = STRBUF_INIT;
-	DIR *dir;
-	struct dirent *d;
-	int ret = 0;
-	struct repository_format format = REPOSITORY_FORMAT_INIT;
-
-	submodule_gitdir = git_pathdup_submodule(path, "%s", "");
-	if (!submodule_gitdir)
-		return 0;
-
-	/* The env would be set for the superproject. */
-	get_common_dir_noenv(&sb, submodule_gitdir);
-	free(submodule_gitdir);
-
-	strbuf_addstr(&sb, "/config");
-	read_repository_format(&format, sb.buf);
-	if (verify_repository_format(&format, &err)) {
-		strbuf_release(&err);
-		strbuf_release(&sb);
-		clear_repository_format(&format);
-		return 1;
-	}
-	clear_repository_format(&format);
-	strbuf_release(&err);
-
-	/* Replace config by worktrees. */
-	strbuf_setlen(&sb, sb.len - strlen("config"));
-	strbuf_addstr(&sb, "worktrees");
-
-	/* See if there is any file inside the worktrees directory. */
-	dir = opendir(sb.buf);
-	strbuf_release(&sb);
-
-	if (!dir)
-		return 0;
-
-	while ((d = readdir(dir)) != NULL) {
-		if (is_dot_or_dotdot(d->d_name))
-			continue;
-
-		ret = 1;
-		break;
-	}
-	closedir(dir);
-	return ret;
-}
-
-int parse_worktree_ref(const char *worktree_ref, const char **name,
-		       int *name_length, const char **ref)
-{
-	if (skip_prefix(worktree_ref, "main-worktree/", &worktree_ref)) {
-		if (!*worktree_ref)
-			return -1;
-		if (name)
-			*name = NULL;
-		if (name_length)
-			*name_length = 0;
-		if (ref)
-			*ref = worktree_ref;
-		return 0;
-	}
-	if (skip_prefix(worktree_ref, "worktrees/", &worktree_ref)) {
-		const char *slash = strchr(worktree_ref, '/');
-
-		if (!slash || slash == worktree_ref || !slash[1])
-			return -1;
-		if (name)
-			*name = worktree_ref;
-		if (name_length)
-			*name_length = slash - worktree_ref;
-		if (ref)
-			*ref = slash + 1;
-		return 0;
-	}
-	return -1;
-}
-
-void strbuf_worktree_ref(const struct worktree *wt,
-			 struct strbuf *sb,
-			 const char *refname)
-{
-	switch (ref_type(refname)) {
-	case REF_TYPE_PSEUDOREF:
-	case REF_TYPE_PER_WORKTREE:
-		if (wt && !wt->is_current) {
-			if (is_main_worktree(wt))
-				strbuf_addstr(sb, "main-worktree/");
-			else
-				strbuf_addf(sb, "worktrees/%s/", wt->id);
-		}
-		break;
-
-	case REF_TYPE_MAIN_PSEUDOREF:
-	case REF_TYPE_OTHER_PSEUDOREF:
-		break;
-
-	case REF_TYPE_NORMAL:
-		/*
-		 * For shared refs, don't prefix worktrees/ or
-		 * main-worktree/. It's not necessary and
-		 * files-backend.c can't handle it anyway.
-		 */
-		break;
-	}
-	strbuf_addstr(sb, refname);
-}
-
-int other_head_refs(each_ref_fn fn, void *cb_data)
-{
-	struct worktree **worktrees, **p;
-	struct strbuf refname = STRBUF_INIT;
-	int ret = 0;
-
-	worktrees = get_worktrees();
-	for (p = worktrees; *p; p++) {
-		struct worktree *wt = *p;
-		struct object_id oid;
-		int flag;
-
-		if (wt->is_current)
-			continue;
-
-		strbuf_reset(&refname);
-		strbuf_worktree_ref(wt, &refname, "HEAD");
-		if (!refs_read_ref_full(get_main_ref_store(the_repository),
-					refname.buf,
-					RESOLVE_REF_READING,
-					&oid, &flag))
-			ret = fn(refname.buf, &oid, flag, cb_data);
-		if (ret)
-			break;
-	}
-	free_worktrees(worktrees);
-	strbuf_release(&refname);
-	return ret;
-}
-
-/*
- * Repair worktree's /path/to/worktree/.git file if missing, corrupt, or not
- * pointing at <repo>/worktrees/<id>.
- */
-static void repair_gitfile(struct worktree *wt,
-			   worktree_repair_fn fn, void *cb_data)
-{
-	struct strbuf dotgit = STRBUF_INIT;
-	struct strbuf repo = STRBUF_INIT;
-	char *backlink;
-	const char *repair = NULL;
-	int err;
-
-	/* missing worktree can't be repaired */
-	if (!file_exists(wt->path))
-		return;
-
-	if (!is_directory(wt->path)) {
-		fn(1, wt->path, _("not a directory"), cb_data);
-		return;
-	}
-
-	strbuf_realpath(&repo, git_common_path("worktrees/%s", wt->id), 1);
-	strbuf_addf(&dotgit, "%s/.git", wt->path);
-	backlink = xstrdup_or_null(read_gitfile_gently(dotgit.buf, &err));
-
-	if (err == READ_GITFILE_ERR_NOT_A_FILE)
-		fn(1, wt->path, _(".git is not a file"), cb_data);
-	else if (err)
-		repair = _(".git file broken");
-	else if (fspathcmp(backlink, repo.buf))
-		repair = _(".git file incorrect");
-
-	if (repair) {
-		fn(0, wt->path, repair, cb_data);
-		write_file(dotgit.buf, "gitdir: %s", repo.buf);
-	}
-
-	free(backlink);
-	strbuf_release(&repo);
-	strbuf_release(&dotgit);
-}
-
-static void repair_noop(int iserr, const char *path, const char *msg,
-			void *cb_data)
-{
-	/* nothing */
-}
-
-void repair_worktrees(worktree_repair_fn fn, void *cb_data)
-{
-	struct worktree **worktrees = get_worktrees();
-	struct worktree **wt = worktrees + 1; /* +1 skips main worktree */
-
-	if (!fn)
-		fn = repair_noop;
-	for (; *wt; wt++)
-		repair_gitfile(*wt, fn, cb_data);
-	free_worktrees(worktrees);
-}
-
-static int is_main_worktree_path(const char *path)
-{
-	struct strbuf target = STRBUF_INIT;
-	struct strbuf maindir = STRBUF_INIT;
-	int cmp;
-
-	strbuf_add_real_path(&target, path);
-	strbuf_strip_suffix(&target, "/.git");
-	strbuf_add_real_path(&maindir, get_git_common_dir());
-	strbuf_strip_suffix(&maindir, "/.git");
-	cmp = fspathcmp(maindir.buf, target.buf);
-
-	strbuf_release(&maindir);
-	strbuf_release(&target);
-	return !cmp;
-}
-
-/*
- * Repair <repo>/worktrees/<id>/gitdir if missing, corrupt, or not pointing at
- * the worktree's path.
- */
-void repair_worktree_at_path(const char *path,
-			     worktree_repair_fn fn, void *cb_data)
-{
-	struct strbuf dotgit = STRBUF_INIT;
-	struct strbuf realdotgit = STRBUF_INIT;
-	struct strbuf gitdir = STRBUF_INIT;
-	struct strbuf olddotgit = STRBUF_INIT;
-	char *backlink = NULL;
-	const char *repair = NULL;
-	int err;
-
-	if (!fn)
-		fn = repair_noop;
-
-	if (is_main_worktree_path(path))
-		goto done;
-
-	strbuf_addf(&dotgit, "%s/.git", path);
-	if (!strbuf_realpath(&realdotgit, dotgit.buf, 0)) {
-		fn(1, path, _("not a valid path"), cb_data);
-		goto done;
-	}
-
-	backlink = xstrdup_or_null(read_gitfile_gently(realdotgit.buf, &err));
-	if (err == READ_GITFILE_ERR_NOT_A_FILE) {
-		fn(1, realdotgit.buf, _("unable to locate repository; .git is not a file"), cb_data);
-		goto done;
-	} else if (err) {
-		fn(1, realdotgit.buf, _("unable to locate repository; .git file broken"), cb_data);
-		goto done;
-	}
-
-	strbuf_addf(&gitdir, "%s/gitdir", backlink);
-	if (strbuf_read_file(&olddotgit, gitdir.buf, 0) < 0)
-		repair = _("gitdir unreadable");
-	else {
-		strbuf_rtrim(&olddotgit);
-		if (fspathcmp(olddotgit.buf, realdotgit.buf))
-			repair = _("gitdir incorrect");
-	}
-
-	if (repair) {
-		fn(0, gitdir.buf, repair, cb_data);
-		write_file(gitdir.buf, "%s", realdotgit.buf);
-	}
-done:
-	free(backlink);
-	strbuf_release(&olddotgit);
-	strbuf_release(&gitdir);
-	strbuf_release(&realdotgit);
-	strbuf_release(&dotgit);
-}