}
/**
- * Update head_sha1, head_ref and is_detached of the given worktree
+ * Update head_oid, head_ref and is_detached of the given worktree
*/
static void add_head_info(struct worktree *wt)
{
target = refs_resolve_ref_unsafe(get_worktree_ref_store(wt),
"HEAD",
- RESOLVE_REF_READING,
- wt->head_sha1, &flags);
+ 0,
+ &wt->head_oid, &flags);
if (!target)
return;
static struct worktree *get_main_worktree(void)
{
struct worktree *worktree = NULL;
- struct strbuf path = STRBUF_INIT;
struct strbuf worktree_path = STRBUF_INIT;
- int is_bare = 0;
-
- strbuf_add_absolute_path(&worktree_path, get_git_common_dir());
- is_bare = !strbuf_strip_suffix(&worktree_path, "/.git");
- if (is_bare)
- strbuf_strip_suffix(&worktree_path, "/.");
- strbuf_addf(&path, "%s/HEAD", get_git_common_dir());
+ 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);
- worktree->is_bare = is_bare;
+ /*
+ * 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;
}
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);
+ strbuf_strip_suffix(&worktree_path, "/.git");
worktree = xcalloc(1, sizeof(*worktree));
worktree->path = strbuf_detach(&worktree_path, NULL);
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 **get_worktrees(void)
{
struct worktree **list = NULL;
struct strbuf path = STRBUF_INIT;
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 *arg)
{
struct worktree *wt;
- char *path;
char *to_free = NULL;
if ((wt = find_worktree_by_suffix(list, arg)))
if (prefix)
arg = to_free = prefix_filename(prefix, arg);
- path = real_pathdup(arg, 1);
- for (; *list; list++)
- if (!fspathcmp(path, real_path((*list)->path)))
+ 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);
- free(to_free);
+ strbuf_release(&wt_path);
return *list;
}
return !wt->id;
}
-const char *is_worktree_locked(struct worktree *wt)
+const char *worktree_lock_reason(struct worktree *wt)
{
assert(!is_main_worktree(wt));
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)
{
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);
+ (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;
}
const char *target)
{
struct wt_status_state state;
- int found_rebase;
+ int found_bisect;
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;
+ 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;
}
/*
if (worktrees)
free_worktrees(worktrees);
- worktrees = get_worktrees(0);
+ worktrees = get_worktrees();
for (i = 0; worktrees[i]; i++) {
struct worktree *wt = worktrees[i];
const char *symref_target;
- unsigned char sha1[20];
struct ref_store *refs;
int flags;
refs = get_worktree_ref_store(wt);
symref_target = refs_resolve_ref_unsafe(refs, symref, 0,
- sha1, &flags);
- if ((flags & REF_ISSYMREF) && !strcmp(symref_target, target)) {
+ NULL, &flags);
+ if ((flags & REF_ISSYMREF) &&
+ symref_target && !strcmp(symref_target, target)) {
existing = wt;
break;
}
int submodule_uses_worktrees(const char *path)
{
char *submodule_gitdir;
- struct strbuf sb = STRBUF_INIT;
+ struct strbuf sb = STRBUF_INIT, err = STRBUF_INIT;
DIR *dir;
struct dirent *d;
int ret = 0;
- struct repository_format format;
+ struct repository_format format = REPOSITORY_FORMAT_INIT;
submodule_gitdir = git_pathdup_submodule(path, "%s", "");
if (!submodule_gitdir)
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) {
+ 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"));
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);
+}
projects / platform / upstream / git.git / blobdiff