1 files changed, 0 insertions, 594 deletions

diff --git a/third_party/git/worktree.c b/third_party/git/worktree.c
deleted file mode 100644
index 5b4793caa3..0000000000
--- a/third_party/git/worktree.c
+++ /dev/null
@@ -1,594 +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_sha1, 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 path = STRBUF_INIT;
-	struct strbuf worktree_path = STRBUF_INIT;
-
-	strbuf_add_absolute_path(&worktree_path, get_git_common_dir());
-	if (!strbuf_strip_suffix(&worktree_path, "/.git"))
-		strbuf_strip_suffix(&worktree_path, "/.");
-
-	strbuf_addf(&path, "%s/HEAD", get_git_common_dir());
-
-	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);
-
-	strbuf_release(&path);
-	strbuf_release(&worktree_path);
-	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);
-	if (!strbuf_strip_suffix(&worktree_path, "/.git")) {
-		strbuf_reset(&worktree_path);
-		strbuf_add_absolute_path(&worktree_path, ".");
-		strbuf_strip_suffix(&worktree_path, "/.");
-	}
-
-	strbuf_reset(&path);
-	strbuf_addf(&path, "%s/worktrees/%s/HEAD", get_git_common_dir(), id);
-
-	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);
-}
-
-static int compare_worktree(const void *a_, const void *b_)
-{
-	const struct worktree *const *a = a_;
-	const struct worktree *const *b = b_;
-	return fspathcmp((*a)->path, (*b)->path);
-}
-
-struct worktree **get_worktrees(unsigned flags)
-{
-	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;
-
-	if (flags & GWT_SORT_LINKED)
-		/*
-		 * don't sort the first item (main worktree), which will
-		 * always be the first
-		 */
-		QSORT(list + 1, counter - 1, compare_worktree);
-
-	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 *path;
-	char *to_free = NULL;
-
-	if ((wt = find_worktree_by_suffix(list, arg)))
-		return wt;
-
-	if (prefix)
-		arg = to_free = prefix_filename(prefix, arg);
-	path = real_pathdup(arg, 0);
-	if (!path) {
-		free(to_free);
-		return NULL;
-	}
-	for (; *list; list++) {
-		const char *wt_path = real_path_if_valid((*list)->path);
-
-		if (wt_path && !fspathcmp(path, wt_path))
-			break;
-	}
-	free(path);
-	free(to_free);
-	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;
-	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;
-	}
-
-	ret = fspathcmp(path, real_path(git_common_path("worktrees/%s", wt->id)));
-
-	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);
-	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 &&
-		 starts_with(target, "refs/heads/") &&
-		 !strcmp(state.branch, target + strlen("refs/heads/")));
-	free(state.branch);
-	free(state.onto);
-	return found_rebase;
-}
-
-int is_worktree_being_bisected(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_bisect(wt, &state) &&
-		state.branch &&
-		starts_with(target, "refs/heads/") &&
-		!strcmp(state.branch, target + strlen("refs/heads/"));
-	free(state.branch);
-	return found_rebase;
-}
-
-/*
- * 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(0);
-
-	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;
-	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);
-
-	/*
-	 * The check below is only known to be good for repository format
-	 * version 0 at the time of writing this code.
-	 */
-	strbuf_addstr(&sb, "/config");
-	read_repository_format(&format, sb.buf);
-	if (format.version != 0) {
-		strbuf_release(&sb);
-		clear_repository_format(&format);
-		return 1;
-	}
-	clear_repository_format(&format);
-
-	/* 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);
-}
-
-const char *worktree_ref(const struct worktree *wt, const char *refname)
-{
-	static struct strbuf sb = STRBUF_INIT;
-
-	strbuf_reset(&sb);
-	strbuf_worktree_ref(wt, &sb, refname);
-	return sb.buf;
-}
-
-int other_head_refs(each_ref_fn fn, void *cb_data)
-{
-	struct worktree **worktrees, **p;
-	int ret = 0;
-
-	worktrees = get_worktrees(0);
-	for (p = worktrees; *p; p++) {
-		struct worktree *wt = *p;
-		struct object_id oid;
-		int flag;
-
-		if (wt->is_current)
-			continue;
-
-		if (!refs_read_ref_full(get_main_ref_store(the_repository),
-					worktree_ref(wt, "HEAD"),
-					RESOLVE_REF_READING,
-					&oid, &flag))
-			ret = fn(worktree_ref(wt, "HEAD"), &oid, flag, cb_data);
-		if (ret)
-			break;
-	}
-	free_worktrees(worktrees);
-	return ret;
-}