#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)
{
for (i = 0; worktrees[i]; i++) {
free(worktrees[i]->path);
- free(worktrees[i]->git_dir);
+ free(worktrees[i]->id);
free(worktrees[i]->head_ref);
+ free(worktrees[i]->lock_reason);
free(worktrees[i]);
}
free (worktrees);
}
-/*
- * read 'path_to_ref' into 'ref'. Also if is_detached is not NULL,
- * set is_detached to 1 (0) if the ref is detatched (is not detached).
- *
- * $GIT_COMMON_DIR/$symref (e.g. HEAD) is practically outside $GIT_DIR so
- * for linked worktrees, `resolve_ref_unsafe()` won't work (it uses
- * git_path). Parse the ref ourselves.
- *
- * return -1 if the ref is not a proper ref, 0 otherwise (success)
- */
-static int parse_ref(char *path_to_ref, struct strbuf *ref, int *is_detached)
-{
- if (is_detached)
- *is_detached = 0;
- if (!strbuf_readlink(ref, path_to_ref, 0)) {
- /* HEAD is symbolic link */
- if (!starts_with(ref->buf, "refs/") ||
- check_refname_format(ref->buf, 0))
- return -1;
- } else if (strbuf_read_file(ref, path_to_ref, 0) >= 0) {
- /* textual symref or detached */
- if (!starts_with(ref->buf, "ref:")) {
- if (is_detached)
- *is_detached = 1;
- } else {
- strbuf_remove(ref, 0, strlen("ref:"));
- strbuf_trim(ref);
- if (check_refname_format(ref->buf, 0))
- return -1;
- }
- } else
- return -1;
- return 0;
-}
-
/**
- * Add the head_sha1 and head_ref (if not detached) to the given worktree
+ * Update head_sha1, head_ref and is_detached of the given worktree
*/
-static void add_head_info(struct strbuf *head_ref, struct worktree *worktree)
-{
- if (head_ref->len) {
- if (worktree->is_detached) {
- get_sha1_hex(head_ref->buf, worktree->head_sha1);
- } else {
- resolve_ref_unsafe(head_ref->buf, 0, worktree->head_sha1, NULL);
- worktree->head_ref = strbuf_detach(head_ref, NULL);
- }
- }
+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;
}
/**
struct worktree *worktree = NULL;
struct strbuf path = STRBUF_INIT;
struct strbuf worktree_path = STRBUF_INIT;
- struct strbuf gitdir = STRBUF_INIT;
- struct strbuf head_ref = STRBUF_INIT;
int is_bare = 0;
- int is_detached = 0;
- strbuf_addf(&gitdir, "%s", absolute_path(get_git_common_dir()));
- strbuf_addbuf(&worktree_path, &gitdir);
+ 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());
- if (parse_ref(path.buf, &head_ref, &is_detached) < 0)
- goto done;
-
- worktree = xmalloc(sizeof(struct worktree));
+ worktree = xcalloc(1, sizeof(*worktree));
worktree->path = strbuf_detach(&worktree_path, NULL);
- worktree->git_dir = strbuf_detach(&gitdir, NULL);
worktree->is_bare = is_bare;
- worktree->head_ref = NULL;
- worktree->is_detached = is_detached;
- add_head_info(&head_ref, worktree);
+ add_head_info(worktree);
-done:
strbuf_release(&path);
- strbuf_release(&gitdir);
strbuf_release(&worktree_path);
- strbuf_release(&head_ref);
return worktree;
}
struct worktree *worktree = NULL;
struct strbuf path = STRBUF_INIT;
struct strbuf worktree_path = STRBUF_INIT;
- struct strbuf gitdir = STRBUF_INIT;
- struct strbuf head_ref = STRBUF_INIT;
- int is_detached = 0;
if (!id)
die("Missing linked worktree name");
- strbuf_addf(&gitdir, "%s/worktrees/%s",
- absolute_path(get_git_common_dir()), id);
- strbuf_addf(&path, "%s/gitdir", gitdir.buf);
+ 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_addstr(&worktree_path, absolute_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);
- if (parse_ref(path.buf, &head_ref, &is_detached) < 0)
- goto done;
-
- worktree = xmalloc(sizeof(struct worktree));
+ worktree = xcalloc(1, sizeof(*worktree));
worktree->path = strbuf_detach(&worktree_path, NULL);
- worktree->git_dir = strbuf_detach(&gitdir, NULL);
- worktree->is_bare = 0;
- worktree->head_ref = NULL;
- worktree->is_detached = is_detached;
- add_head_info(&head_ref, worktree);
+ worktree->id = xstrdup(id);
+ add_head_info(worktree);
done:
strbuf_release(&path);
- strbuf_release(&gitdir);
strbuf_release(&worktree_path);
- strbuf_release(&head_ref);
return worktree;
}
-struct worktree **get_worktrees(void)
+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;
struct dirent *d;
int counter = 0, alloc = 2;
- list = xmalloc(alloc * sizeof(struct worktree *));
+ ALLOC_ARRAY(list, alloc);
- if ((list[counter] = get_main_worktree()))
- counter++;
+ list[counter++] = get_main_worktree();
strbuf_addf(&path, "%s/worktrees", get_git_common_dir());
dir = opendir(path.buf);
if (dir) {
while ((d = readdir(dir)) != NULL) {
struct worktree *linked = NULL;
- if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
+ 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;
- }
+ 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;
}
-char *find_shared_symref(const char *symref, const char *target)
+const char *get_worktree_git_dir(const struct worktree *wt)
{
- char *existing = NULL;
- struct strbuf path = STRBUF_INIT;
- struct strbuf sb = STRBUF_INIT;
- struct worktree **worktrees = get_worktrees();
+ 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, 1);
+ for (; *list; list++)
+ if (!fspathcmp(path, real_path((*list)->path)))
+ break;
+ free(path);
+ free(to_free);
+ return *list;
+}
+
+int is_main_worktree(const struct worktree *wt)
+{
+ return !wt->id;
+}
+
+const char *is_worktree_locked(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;
+}
+
+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++) {
- strbuf_reset(&path);
- strbuf_reset(&sb);
- strbuf_addf(&path, "%s/%s", worktrees[i]->git_dir, symref);
+ struct worktree *wt = worktrees[i];
+ const char *symref_target;
+ struct ref_store *refs;
+ int flags;
- if (parse_ref(path.buf, &sb, NULL)) {
+ 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;
+ }
}
- if (!strcmp(sb.buf, target)) {
- existing = xstrdup(worktrees[i]->path);
+ 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;
}
}
- strbuf_release(&path);
+ 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;
+
+ 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);
+ return 1;
+ }
+
+ /* 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);
- free_worktrees(worktrees);
- return existing;
+ 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 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 ref_store *refs;
+
+ if (wt->is_current)
+ continue;
+
+ refs = get_worktree_ref_store(wt);
+ ret = refs_head_ref(refs, fn, cb_data);
+ if (ret)
+ break;
+ }
+ free_worktrees(worktrees);
+ return ret;
}
projects / platform / upstream / git.git / blobdiff