#include "../object.h"
#include "../dir.h"
#include "../chdir-notify.h"
+#include "worktree.h"
/*
* This backend uses the following flags in `ref_update::flags` for
*/
#define REF_NEEDS_COMMIT (1 << 6)
-/*
- * Used as a flag in ref_update::flags when we want to log a ref
- * update but not actually perform it. This is used when a symbolic
- * ref update is split up.
- */
-#define REF_LOG_ONLY (1 << 7)
-
/*
* Used as a flag in ref_update::flags when the ref_update was via an
* update to HEAD.
struct ref_store base;
unsigned int store_flags;
- char *gitdir;
char *gitcommondir;
struct ref_cache *loose;
struct ref_store *ref_store = (struct ref_store *)refs;
struct strbuf sb = STRBUF_INIT;
+ ref_store->gitdir = xstrdup(gitdir);
base_ref_store_init(ref_store, &refs_be_files);
refs->store_flags = flags;
- refs->gitdir = xstrdup(gitdir);
get_common_dir_noenv(&sb, gitdir);
refs->gitcommondir = strbuf_detach(&sb, NULL);
strbuf_addf(&sb, "%s/packed-refs", refs->gitcommondir);
refs->packed_ref_store = packed_ref_store_create(sb.buf, flags);
strbuf_release(&sb);
- chdir_notify_reparent("files-backend $GIT_DIR",
- &refs->gitdir);
+ chdir_notify_reparent("files-backend $GIT_DIR", &refs->base.gitdir);
chdir_notify_reparent("files-backend $GIT_COMMONDIR",
&refs->gitcommondir);
return refs;
}
+static void files_reflog_path_other_worktrees(struct files_ref_store *refs,
+ struct strbuf *sb,
+ const char *refname)
+{
+ const char *real_ref;
+ const char *worktree_name;
+ int length;
+
+ if (parse_worktree_ref(refname, &worktree_name, &length, &real_ref))
+ BUG("refname %s is not a other-worktree ref", refname);
+
+ if (worktree_name)
+ strbuf_addf(sb, "%s/worktrees/%.*s/logs/%s", refs->gitcommondir,
+ length, worktree_name, real_ref);
+ else
+ strbuf_addf(sb, "%s/logs/%s", refs->gitcommondir,
+ real_ref);
+}
+
static void files_reflog_path(struct files_ref_store *refs,
struct strbuf *sb,
const char *refname)
switch (ref_type(refname)) {
case REF_TYPE_PER_WORKTREE:
case REF_TYPE_PSEUDOREF:
- strbuf_addf(sb, "%s/logs/%s", refs->gitdir, refname);
+ strbuf_addf(sb, "%s/logs/%s", refs->base.gitdir, refname);
+ break;
+ case REF_TYPE_OTHER_PSEUDOREF:
+ case REF_TYPE_MAIN_PSEUDOREF:
+ files_reflog_path_other_worktrees(refs, sb, refname);
break;
case REF_TYPE_NORMAL:
strbuf_addf(sb, "%s/logs/%s", refs->gitcommondir, refname);
switch (ref_type(refname)) {
case REF_TYPE_PER_WORKTREE:
case REF_TYPE_PSEUDOREF:
- strbuf_addf(sb, "%s/%s", refs->gitdir, refname);
+ strbuf_addf(sb, "%s/%s", refs->base.gitdir, refname);
break;
+ case REF_TYPE_MAIN_PSEUDOREF:
+ if (!skip_prefix(refname, "main-worktree/", &refname))
+ BUG("ref %s is not a main pseudoref", refname);
+ /* fallthrough */
+ case REF_TYPE_OTHER_PSEUDOREF:
case REF_TYPE_NORMAL:
strbuf_addf(sb, "%s/%s", refs->gitcommondir, refname);
break;
}
}
+/*
+ * Manually add refs/bisect, refs/rewritten and refs/worktree, which, being
+ * per-worktree, might not appear in the directory listing for
+ * refs/ in the main repo.
+ */
+static void add_per_worktree_entries_to_dir(struct ref_dir *dir, const char *dirname)
+{
+ const char *prefixes[] = { "refs/bisect/", "refs/worktree/", "refs/rewritten/" };
+ int ip;
+
+ if (strcmp(dirname, "refs/"))
+ return;
+
+ for (ip = 0; ip < ARRAY_SIZE(prefixes); ip++) {
+ const char *prefix = prefixes[ip];
+ int prefix_len = strlen(prefix);
+ struct ref_entry *child_entry;
+ int pos;
+
+ pos = search_ref_dir(dir, prefix, prefix_len);
+ if (pos >= 0)
+ continue;
+ child_entry = create_dir_entry(dir->cache, prefix, prefix_len, 1);
+ add_entry_to_dir(dir, child_entry);
+ }
+}
+
/*
* Read the loose references from the namespace dirname into dir
* (without recursing). dirname must end with '/'. dir must be the
strbuf_release(&path);
closedir(d);
- /*
- * Manually add refs/bisect, which, being per-worktree, might
- * not appear in the directory listing for refs/ in the main
- * repo.
- */
- if (!strcmp(dirname, "refs/")) {
- int pos = search_ref_dir(dir, "refs/bisect/", 12);
-
- if (pos < 0) {
- struct ref_entry *child_entry = create_dir_entry(
- dir->cache, "refs/bisect/", 12, 1);
- add_entry_to_dir(dir, child_entry);
- }
- }
+ add_per_worktree_entries_to_dir(dir, dirname);
}
static struct ref_cache *get_loose_ref_cache(struct files_ref_store *refs)
struct strbuf sb_path = STRBUF_INIT;
const char *path;
const char *buf;
- const char *p;
struct stat st;
int fd;
int ret = -1;
/* Follow "normalized" - ie "refs/.." symlinks by hand */
if (S_ISLNK(st.st_mode)) {
strbuf_reset(&sb_contents);
- if (strbuf_readlink(&sb_contents, path, 0) < 0) {
+ if (strbuf_readlink(&sb_contents, path, st.st_size) < 0) {
if (errno == ENOENT || errno == EINVAL)
/* inconsistent with lstat; retry */
goto stat_ref;
close(fd);
strbuf_rtrim(&sb_contents);
buf = sb_contents.buf;
- if (starts_with(buf, "ref:")) {
- buf += 4;
+
+ ret = parse_loose_ref_contents(buf, oid, referent, type);
+
+out:
+ save_errno = errno;
+ strbuf_release(&sb_path);
+ strbuf_release(&sb_contents);
+ errno = save_errno;
+ return ret;
+}
+
+int parse_loose_ref_contents(const char *buf, struct object_id *oid,
+ struct strbuf *referent, unsigned int *type)
+{
+ const char *p;
+ if (skip_prefix(buf, "ref:", &buf)) {
while (isspace(*buf))
buf++;
strbuf_reset(referent);
strbuf_addstr(referent, buf);
*type |= REF_ISSYMREF;
- ret = 0;
- goto out;
+ return 0;
}
/*
- * Please note that FETCH_HEAD has additional
- * data after the sha.
+ * FETCH_HEAD has additional data after the sha.
*/
if (parse_oid_hex(buf, oid, &p) ||
(*p != '\0' && !isspace(*p))) {
*type |= REF_ISBROKEN;
errno = EINVAL;
- goto out;
+ return -1;
}
-
- ret = 0;
-
-out:
- save_errno = errno;
- strbuf_release(&sb_path);
- strbuf_release(&sb_contents);
- errno = save_errno;
- return ret;
+ return 0;
}
static void unlock_ref(struct ref_lock *lock)
/* First lock the file so it can't change out from under us. */
- *lock_p = lock = xcalloc(1, sizeof(*lock));
+ *lock_p = CALLOC_ARRAY(lock, 1);
lock->ref_name = xstrdup(refname);
files_ref_path(refs, &ref_file, refname);
overlay_iter = overlay_ref_iterator_begin(loose_iter, packed_iter);
- iter = xcalloc(1, sizeof(*iter));
+ CALLOC_ARRAY(iter, 1);
ref_iterator = &iter->base;
base_ref_iterator_init(ref_iterator, &files_ref_iterator_vtable,
overlay_iter->ordered);
return 0;
}
}
- if (old_oid && oidcmp(&lock->old_oid, old_oid)) {
+ if (old_oid && !oideq(&lock->old_oid, old_oid)) {
strbuf_addf(err, "ref '%s' is at %s but expected %s",
lock->ref_name,
oid_to_hex(&lock->old_oid),
files_assert_main_repository(refs, "lock_ref_oid_basic");
assert(err);
- lock = xcalloc(1, sizeof(struct ref_lock));
+ CALLOC_ARRAY(lock, 1);
if (mustexist)
resolve_flags |= RESOLVE_REF_READING;
{
struct files_ref_store *refs =
files_downcast(ref_store, REF_STORE_WRITE, "rename_ref");
- struct object_id oid, orig_oid;
+ struct object_id orig_oid;
int flag = 0, logmoved = 0;
struct ref_lock *lock;
struct stat loginfo;
*/
if (!copy && !refs_read_ref_full(&refs->base, newrefname,
RESOLVE_REF_READING | RESOLVE_REF_NO_RECURSE,
- &oid, NULL) &&
+ NULL, NULL) &&
refs_delete_ref(&refs->base, NULL, newrefname,
NULL, REF_NO_DEREF)) {
if (errno == EISDIR) {
const struct object_id *new_oid,
const char *committer, const char *msg)
{
- int msglen, written;
- unsigned maxlen, len;
- char *logrec;
-
- msglen = msg ? strlen(msg) : 0;
- maxlen = strlen(committer) + msglen + 100;
- logrec = xmalloc(maxlen);
- len = xsnprintf(logrec, maxlen, "%s %s %s\n",
- oid_to_hex(old_oid),
- oid_to_hex(new_oid),
- committer);
- if (msglen)
- len += copy_reflog_msg(logrec + len - 1, msg) - 1;
-
- written = len <= maxlen ? write_in_full(fd, logrec, len) : -1;
- free(logrec);
- if (written < 0)
- return -1;
+ struct strbuf sb = STRBUF_INIT;
+ int ret = 0;
- return 0;
+ strbuf_addf(&sb, "%s %s %s", oid_to_hex(old_oid), oid_to_hex(new_oid), committer);
+ if (msg && *msg) {
+ strbuf_addch(&sb, '\t');
+ strbuf_addstr(&sb, msg);
+ }
+ strbuf_addch(&sb, '\n');
+ if (write_in_full(fd, sb.buf, sb.len) < 0)
+ ret = -1;
+ strbuf_release(&sb);
+ return ret;
}
static int files_log_ref_write(struct files_ref_store *refs,
struct object *o;
int fd;
- o = parse_object(oid);
+ o = parse_object(the_repository, oid);
if (!o) {
strbuf_addf(err,
"trying to write ref '%s' with nonexistent object %s",
return -1;
}
fd = get_lock_file_fd(&lock->lk);
- if (write_in_full(fd, oid_to_hex(oid), GIT_SHA1_HEXSZ) < 0 ||
+ if (write_in_full(fd, oid_to_hex(oid), the_hash_algo->hexsz) < 0 ||
write_in_full(fd, &term, 1) < 0 ||
close_ref_gently(lock) < 0) {
strbuf_addf(err,
if (!fdopen_lock_file(&lock->lk, "w"))
return error("unable to fdopen %s: %s",
- lock->lk.tempfile->filename.buf, strerror(errno));
+ get_lock_file_path(&lock->lk), strerror(errno));
update_symref_reflog(refs, lock, refname, target, logmsg);
/* no error check; commit_ref will check ferror */
- fprintf(lock->lk.tempfile->fp, "ref: %s\n", target);
+ fprintf(get_lock_file_fp(&lock->lk), "ref: %s\n", target);
if (commit_ref(lock) < 0)
return error("unable to write symref for %s: %s", refname,
strerror(errno));
static struct ref_iterator *reflog_iterator_begin(struct ref_store *ref_store,
const char *gitdir)
{
- struct files_reflog_iterator *iter = xcalloc(1, sizeof(*iter));
- struct ref_iterator *ref_iterator = &iter->base;
+ struct dir_iterator *diter;
+ struct files_reflog_iterator *iter;
+ struct ref_iterator *ref_iterator;
struct strbuf sb = STRBUF_INIT;
- base_ref_iterator_init(ref_iterator, &files_reflog_iterator_vtable, 0);
strbuf_addf(&sb, "%s/logs", gitdir);
- iter->dir_iterator = dir_iterator_begin(sb.buf);
+
+ diter = dir_iterator_begin(sb.buf, 0);
+ if (!diter) {
+ strbuf_release(&sb);
+ return empty_ref_iterator_begin();
+ }
+
+ CALLOC_ARRAY(iter, 1);
+ ref_iterator = &iter->base;
+
+ base_ref_iterator_init(ref_iterator, &files_reflog_iterator_vtable, 0);
+ iter->dir_iterator = diter;
iter->ref_store = ref_store;
strbuf_release(&sb);
files_downcast(ref_store, REF_STORE_READ,
"reflog_iterator_begin");
- if (!strcmp(refs->gitdir, refs->gitcommondir)) {
+ if (!strcmp(refs->base.gitdir, refs->gitcommondir)) {
return reflog_iterator_begin(ref_store, refs->gitcommondir);
} else {
return merge_ref_iterator_begin(
- 0,
- reflog_iterator_begin(ref_store, refs->gitdir),
+ 0, reflog_iterator_begin(ref_store, refs->base.gitdir),
reflog_iterator_begin(ref_store, refs->gitcommondir),
reflog_iterator_select, refs);
}
* Note that the new update will itself be subject to splitting when
* the iteration gets to it.
*/
-static int split_symref_update(struct files_ref_store *refs,
- struct ref_update *update,
+static int split_symref_update(struct ref_update *update,
const char *referent,
struct ref_transaction *transaction,
struct string_list *affected_refnames,
struct strbuf *err)
{
if (!(update->flags & REF_HAVE_OLD) ||
- !oidcmp(oid, &update->old_oid))
+ oideq(oid, &update->old_oid))
return 0;
if (is_null_oid(&update->old_oid))
* of processing the split-off update, so we
* don't have to do it here.
*/
- ret = split_symref_update(refs, update,
+ ret = split_symref_update(update,
referent.buf, transaction,
affected_refnames, err);
if (ret)
!(update->flags & REF_DELETING) &&
!(update->flags & REF_LOG_ONLY)) {
if (!(update->type & REF_ISSYMREF) &&
- !oidcmp(&lock->old_oid, &update->new_oid)) {
+ oideq(&lock->old_oid, &update->new_oid)) {
/*
* The reference already has the desired
* value, so we don't need to write it.
}
}
- if (backend_data->packed_transaction &&
- ref_transaction_abort(backend_data->packed_transaction, &err)) {
- error("error aborting transaction: %s", err.buf);
- strbuf_release(&err);
- }
+ if (backend_data) {
+ if (backend_data->packed_transaction &&
+ ref_transaction_abort(backend_data->packed_transaction, &err)) {
+ error("error aborting transaction: %s", err.buf);
+ strbuf_release(&err);
+ }
- if (backend_data->packed_refs_locked)
- packed_refs_unlock(refs->packed_ref_store);
+ if (backend_data->packed_refs_locked)
+ packed_refs_unlock(refs->packed_ref_store);
- free(backend_data);
+ free(backend_data);
+ }
transaction->state = REF_TRANSACTION_CLOSED;
}
if (!transaction->nr)
goto cleanup;
- backend_data = xcalloc(1, sizeof(*backend_data));
+ CALLOC_ARRAY(backend_data, 1);
transaction->backend_data = backend_data;
/*
if (is_packed_transaction_needed(refs->packed_ref_store,
packed_transaction)) {
ret = ref_transaction_prepare(packed_transaction, err);
+ /*
+ * A failure during the prepare step will abort
+ * itself, but not free. Do that now, and disconnect
+ * from the files_transaction so it does not try to
+ * abort us when we hit the cleanup code below.
+ */
+ if (ret) {
+ ref_transaction_free(packed_transaction);
+ backend_data->packed_transaction = NULL;
+ }
} else {
/*
* We can skip rewriting the `packed-refs`
* file. But we do need to leave it locked, so
* that somebody else doesn't pack a reference
* that we are trying to delete.
+ *
+ * We need to disconnect our transaction from
+ * backend_data, since the abort (whether successful or
+ * not) will free it.
*/
+ backend_data->packed_transaction = NULL;
if (ref_transaction_abort(packed_transaction, err)) {
ret = TRANSACTION_GENERIC_ERROR;
goto cleanup;
}
- backend_data->packed_transaction = NULL;
}
}
rollback_lock_file(&reflog_lock);
} else if (update &&
(write_in_full(get_lock_file_fd(&lock->lk),
- oid_to_hex(&cb.last_kept_oid), GIT_SHA1_HEXSZ) < 0 ||
+ oid_to_hex(&cb.last_kept_oid), the_hash_algo->hexsz) < 0 ||
write_str_in_full(get_lock_file_fd(&lock->lk), "\n") < 0 ||
close_ref_gently(lock) < 0)) {
status |= error("couldn't write %s",
projects / thirdparty / git.git / blobdiff