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-rw-r--r--worktree.c224
1 files changed, 126 insertions, 98 deletions
diff --git a/worktree.c b/worktree.c
index f7869f8d60..f5da7d286d 100644
--- a/worktree.c
+++ b/worktree.c
@@ -1,4 +1,5 @@
#include "cache.h"
+#include "repository.h"
#include "refs.h"
#include "strbuf.h"
#include "worktree.h"
@@ -19,54 +20,25 @@ void free_worktrees(struct worktree **worktrees)
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 detached (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)
+static void add_head_info(struct worktree *wt)
{
- 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);
- }
- }
+ 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;
}
/**
@@ -77,9 +49,7 @@ static struct worktree *get_main_worktree(void)
struct worktree *worktree = NULL;
struct strbuf path = STRBUF_INIT;
struct strbuf worktree_path = STRBUF_INIT;
- struct strbuf head_ref = STRBUF_INIT;
int is_bare = 0;
- int is_detached = 0;
strbuf_add_absolute_path(&worktree_path, get_git_common_dir());
is_bare = !strbuf_strip_suffix(&worktree_path, "/.git");
@@ -88,24 +58,13 @@ static struct worktree *get_main_worktree(void)
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->id = NULL;
worktree->is_bare = is_bare;
- worktree->head_ref = NULL;
- worktree->is_detached = is_detached;
- worktree->is_current = 0;
- add_head_info(&head_ref, worktree);
- worktree->lock_reason = NULL;
- worktree->lock_reason_valid = 0;
+ add_head_info(worktree);
-done:
strbuf_release(&path);
strbuf_release(&worktree_path);
- strbuf_release(&head_ref);
return worktree;
}
@@ -114,13 +73,11 @@ static struct worktree *get_linked_worktree(const char *id)
struct worktree *worktree = NULL;
struct strbuf path = STRBUF_INIT;
struct strbuf worktree_path = STRBUF_INIT;
- struct strbuf head_ref = STRBUF_INIT;
- int is_detached = 0;
if (!id)
die("Missing linked worktree name");
- strbuf_git_common_path(&path, "worktrees/%s/gitdir", id);
+ 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;
@@ -135,30 +92,20 @@ static struct worktree *get_linked_worktree(const char *id)
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->id = xstrdup(id);
- worktree->is_bare = 0;
- worktree->head_ref = NULL;
- worktree->is_detached = is_detached;
- worktree->is_current = 0;
- add_head_info(&head_ref, worktree);
- worktree->lock_reason = NULL;
- worktree->lock_reason_valid = 0;
+ add_head_info(worktree);
done:
strbuf_release(&path);
strbuf_release(&worktree_path);
- strbuf_release(&head_ref);
return worktree;
}
static void mark_current_worktree(struct worktree **worktrees)
{
- char *git_dir = xstrdup(absolute_path(get_git_dir()));
+ char *git_dir = absolute_pathdup(get_git_dir());
int i;
for (i = 0; worktrees[i]; i++) {
@@ -173,7 +120,14 @@ static void mark_current_worktree(struct worktree **worktrees)
free(git_dir);
}
-struct worktree **get_worktrees(void)
+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;
@@ -181,10 +135,9 @@ struct worktree **get_worktrees(void)
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);
@@ -205,6 +158,13 @@ struct worktree **get_worktrees(void)
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;
}
@@ -250,16 +210,19 @@ struct worktree *find_worktree(struct worktree **list,
{
struct worktree *wt;
char *path;
+ char *to_free = NULL;
if ((wt = find_worktree_by_suffix(list, arg)))
return wt;
- arg = prefix_filename(prefix, strlen(prefix), arg);
- path = xstrdup(real_path(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)))
break;
free(path);
+ free(to_free);
return *list;
}
@@ -334,17 +297,19 @@ const struct worktree *find_shared_symref(const char *symref,
const char *target)
{
const struct worktree *existing = NULL;
- struct strbuf path = STRBUF_INIT;
- struct strbuf sb = STRBUF_INIT;
static struct worktree **worktrees;
int i = 0;
if (worktrees)
free_worktrees(worktrees);
- worktrees = get_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;
@@ -359,24 +324,87 @@ const struct worktree *find_shared_symref(const char *symref,
}
}
- strbuf_reset(&path);
- strbuf_reset(&sb);
- strbuf_addf(&path, "%s/%s",
- get_worktree_git_dir(wt),
- symref);
-
- if (parse_ref(path.buf, &sb, NULL)) {
- continue;
- }
-
- if (!strcmp(sb.buf, target)) {
+ 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);
- 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;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 21:22:40 +0000