static void format_commit(struct strbuf *sb,
int indent,
+ struct repository *repo,
struct commit *commit)
{
struct merge_remote_desc *desc;
return;
}
- format_commit_message(commit, "%h %s", sb, &ctx);
+ repo_format_commit_message(repo, commit, "%h %s", sb, &ctx);
strbuf_addch(sb, '\n');
}
if (is_null_oid(b))
return 0;
- /*
- * NEEDSWORK: Remove this when all submodule object accesses are
- * through explicitly specified repositores.
- */
- if (add_submodule_odb(path)) {
- path_msg(opt, path, 0,
- _("Failed to merge submodule %s (not checked out)"),
- path);
- return 0;
- }
-
if (repo_submodule_init(&subrepo, opt->repo, path, null_oid())) {
path_msg(opt, path, 0,
_("Failed to merge submodule %s (not checked out)"),
break;
case 1:
- format_commit(&sb, 4,
+ format_commit(&sb, 4, &subrepo,
(struct commit *)merges.objects[0].item);
path_msg(opt, path, 0,
_("Failed to merge submodule %s, but a possible merge "
break;
default:
for (i = 0; i < merges.nr; i++)
- format_commit(&sb, 4,
+ format_commit(&sb, 4, &subrepo,
(struct commit *)merges.objects[i].item);
path_msg(opt, path, 0,
_("Failed to merge submodule %s, but multiple "
unpack_opts.quiet = 0; /* FIXME: sequencer might want quiet? */
unpack_opts.verbose_update = (opt->verbosity > 2);
unpack_opts.fn = twoway_merge;
- if (1/* FIXME: opts->overwrite_ignore*/) {
- CALLOC_ARRAY(unpack_opts.dir, 1);
- unpack_opts.dir->flags |= DIR_SHOW_IGNORED;
- setup_standard_excludes(unpack_opts.dir);
- }
+ unpack_opts.preserve_ignored = 0; /* FIXME: !opts->overwrite_ignore */
parse_tree(prev);
init_tree_desc(&trees[0], prev->buffer, prev->size);
parse_tree(next);
ret = unpack_trees(2, trees, &unpack_opts);
clear_unpack_trees_porcelain(&unpack_opts);
- dir_clear(unpack_opts.dir);
- FREE_AND_NULL(unpack_opts.dir);
return ret;
}
state.istate = index;
original_cache_nr = index->cache_nr;
- /* Put every entry from paths into plist, then sort */
+ /* Append every entry from conflicted into index, then sort */
strmap_for_each_entry(&opt->priv->conflicted, &iter, e) {
const char *path = e->key;
struct conflict_info *ci = e->value;
flush_output(opt);
}
- static void output_commit_title(struct merge_options *opt, struct commit *commit)
+ static void repo_output_commit_title(struct merge_options *opt,
+ struct repository *repo,
+ struct commit *commit)
{
struct merge_remote_desc *desc;
if (desc)
strbuf_addf(&opt->obuf, "virtual %s\n", desc->name);
else {
- strbuf_add_unique_abbrev(&opt->obuf, &commit->object.oid,
- DEFAULT_ABBREV);
+ strbuf_repo_add_unique_abbrev(&opt->obuf, repo,
+ &commit->object.oid,
+ DEFAULT_ABBREV);
strbuf_addch(&opt->obuf, ' ');
- if (parse_commit(commit) != 0)
+ if (repo_parse_commit(repo, commit) != 0)
strbuf_addstr(&opt->obuf, _("(bad commit)\n"));
else {
const char *title;
- const char *msg = get_commit_buffer(commit, NULL);
+ const char *msg = repo_get_commit_buffer(repo, commit, NULL);
int len = find_commit_subject(msg, &title);
if (len)
strbuf_addf(&opt->obuf, "%.*s\n", len, title);
- unuse_commit_buffer(commit, msg);
+ repo_unuse_commit_buffer(repo, commit, msg);
}
}
flush_output(opt);
}
+ static void output_commit_title(struct merge_options *opt, struct commit *commit)
+ {
+ repo_output_commit_title(opt, the_repository, commit);
+ }
+
static int add_cacheinfo(struct merge_options *opt,
const struct diff_filespec *blob,
const char *path, int stage, int refresh, int options)
memset(&opt->priv->unpack_opts, 0, sizeof(opt->priv->unpack_opts));
if (opt->priv->call_depth)
opt->priv->unpack_opts.index_only = 1;
- else
+ else {
opt->priv->unpack_opts.update = 1;
+ /* FIXME: should only do this if !overwrite_ignore */
+ opt->priv->unpack_opts.preserve_ignored = 0;
+ }
opt->priv->unpack_opts.merge = 1;
opt->priv->unpack_opts.head_idx = 2;
opt->priv->unpack_opts.fn = threeway_merge;
return result->nr;
}
- static void print_commit(struct commit *commit)
+ static void print_commit(struct repository *repo, struct commit *commit)
{
struct strbuf sb = STRBUF_INIT;
struct pretty_print_context ctx = {0};
ctx.date_mode.type = DATE_NORMAL;
/* FIXME: Merge this with output_commit_title() */
assert(!merge_remote_util(commit));
- format_commit_message(commit, " %h: %m %s", &sb, &ctx);
+ repo_format_commit_message(repo, commit, " %h: %m %s", &sb, &ctx);
fprintf(stderr, "%s\n", sb.buf);
strbuf_release(&sb);
}
if (is_null_oid(b))
return 0;
- /*
- * NEEDSWORK: Remove this when all submodule object accesses are
- * through explicitly specified repositores.
- */
- if (add_submodule_odb(path)) {
- output(opt, 1, _("Failed to merge submodule %s (not checked out)"), path);
- return 0;
- }
-
if (repo_submodule_init(&subrepo, opt->repo, path, null_oid())) {
output(opt, 1, _("Failed to merge submodule %s (not checked out)"), path);
return 0;
oidcpy(result, b);
if (show(opt, 3)) {
output(opt, 3, _("Fast-forwarding submodule %s to the following commit:"), path);
- output_commit_title(opt, commit_b);
+ repo_output_commit_title(opt, &subrepo, commit_b);
} else if (show(opt, 2))
output(opt, 2, _("Fast-forwarding submodule %s"), path);
else
oidcpy(result, a);
if (show(opt, 3)) {
output(opt, 3, _("Fast-forwarding submodule %s to the following commit:"), path);
- output_commit_title(opt, commit_a);
+ repo_output_commit_title(opt, &subrepo, commit_a);
} else if (show(opt, 2))
output(opt, 2, _("Fast-forwarding submodule %s"), path);
else
case 1:
output(opt, 1, _("Failed to merge submodule %s (not fast-forward)"), path);
output(opt, 2, _("Found a possible merge resolution for the submodule:\n"));
- print_commit((struct commit *) merges.objects[0].item);
+ print_commit(&subrepo, (struct commit *) merges.objects[0].item);
output(opt, 2, _(
"If this is correct simply add it to the index "
"for example\n"
default:
output(opt, 1, _("Failed to merge submodule %s (multiple merges found)"), path);
for (i = 0; i < merges.nr; i++)
- print_commit((struct commit *) merges.objects[i].item);
+ print_commit(&subrepo, (struct commit *) merges.objects[i].item);
}
object_array_clear(&merges);
return result;
}
-int raceproof_create_file(const char *path, create_file_fn fn, void *cb)
-{
- /*
- * The number of times we will try to remove empty directories
- * in the way of path. This is only 1 because if another
- * process is racily creating directories that conflict with
- * us, we don't want to fight against them.
- */
- int remove_directories_remaining = 1;
-
- /*
- * The number of times that we will try to create the
- * directories containing path. We are willing to attempt this
- * more than once, because another process could be trying to
- * clean up empty directories at the same time as we are
- * trying to create them.
- */
- int create_directories_remaining = 3;
-
- /* A scratch copy of path, filled lazily if we need it: */
- struct strbuf path_copy = STRBUF_INIT;
-
- int ret, save_errno;
-
- /* Sanity check: */
- assert(*path);
-
-retry_fn:
- ret = fn(path, cb);
- save_errno = errno;
- if (!ret)
- goto out;
-
- if (errno == EISDIR && remove_directories_remaining-- > 0) {
- /*
- * A directory is in the way. Maybe it is empty; try
- * to remove it:
- */
- if (!path_copy.len)
- strbuf_addstr(&path_copy, path);
-
- if (!remove_dir_recursively(&path_copy, REMOVE_DIR_EMPTY_ONLY))
- goto retry_fn;
- } else if (errno == ENOENT && create_directories_remaining-- > 0) {
- /*
- * Maybe the containing directory didn't exist, or
- * maybe it was just deleted by a process that is
- * racing with us to clean up empty directories. Try
- * to create it:
- */
- enum scld_error scld_result;
-
- if (!path_copy.len)
- strbuf_addstr(&path_copy, path);
-
- do {
- scld_result = safe_create_leading_directories(path_copy.buf);
- if (scld_result == SCLD_OK)
- goto retry_fn;
- } while (scld_result == SCLD_VANISHED && create_directories_remaining-- > 0);
- }
-
-out:
- strbuf_release(&path_copy);
- errno = save_errno;
- return ret;
-}
-
static void fill_loose_path(struct strbuf *buf, const struct object_id *oid)
{
int i;
* the streaming interface and rehash it to do the same.
*/
int check_object_signature(struct repository *r, const struct object_id *oid,
- void *map, unsigned long size, const char *type)
+ void *map, unsigned long size, const char *type,
+ struct object_id *real_oidp)
{
- struct object_id real_oid;
+ struct object_id tmp;
+ struct object_id *real_oid = real_oidp ? real_oidp : &tmp;
enum object_type obj_type;
struct git_istream *st;
git_hash_ctx c;
int hdrlen;
if (map) {
- hash_object_file(r->hash_algo, map, size, type, &real_oid);
- return !oideq(oid, &real_oid) ? -1 : 0;
+ hash_object_file(r->hash_algo, map, size, type, real_oid);
+ return !oideq(oid, real_oid) ? -1 : 0;
}
st = open_istream(r, oid, &obj_type, &size, NULL);
break;
r->hash_algo->update_fn(&c, buf, readlen);
}
- r->hash_algo->final_oid_fn(&real_oid, &c);
+ r->hash_algo->final_oid_fn(real_oid, &c);
close_istream(st);
- return !oideq(oid, &real_oid) ? -1 : 0;
+ return !oideq(oid, real_oid) ? -1 : 0;
}
int git_open_cloexec(const char *name, int flags)
return map_loose_object_1(r, NULL, oid, size);
}
-static int unpack_loose_short_header(git_zstream *stream,
- unsigned char *map, unsigned long mapsize,
- void *buffer, unsigned long bufsiz)
+enum unpack_loose_header_result unpack_loose_header(git_zstream *stream,
+ unsigned char *map,
+ unsigned long mapsize,
+ void *buffer,
+ unsigned long bufsiz,
+ struct strbuf *header)
{
- int ret;
+ int status;
/* Get the data stream */
memset(stream, 0, sizeof(*stream));
git_inflate_init(stream);
obj_read_unlock();
- ret = git_inflate(stream, 0);
+ status = git_inflate(stream, 0);
obj_read_lock();
-
- return ret;
-}
-
-int unpack_loose_header(git_zstream *stream,
- unsigned char *map, unsigned long mapsize,
- void *buffer, unsigned long bufsiz)
-{
- int status = unpack_loose_short_header(stream, map, mapsize,
- buffer, bufsiz);
-
if (status < Z_OK)
- return status;
-
- /* Make sure we have the terminating NUL */
- if (!memchr(buffer, '\0', stream->next_out - (unsigned char *)buffer))
- return -1;
- return 0;
-}
-
-static int unpack_loose_header_to_strbuf(git_zstream *stream, unsigned char *map,
- unsigned long mapsize, void *buffer,
- unsigned long bufsiz, struct strbuf *header)
-{
- int status;
-
- status = unpack_loose_short_header(stream, map, mapsize, buffer, bufsiz);
- if (status < Z_OK)
- return -1;
+ return ULHR_BAD;
/*
* Check if entire header is unpacked in the first iteration.
*/
if (memchr(buffer, '\0', stream->next_out - (unsigned char *)buffer))
- return 0;
+ return ULHR_OK;
+
+ /*
+ * We have a header longer than MAX_HEADER_LEN. The "header"
+ * here is only non-NULL when we run "cat-file
+ * --allow-unknown-type".
+ */
+ if (!header)
+ return ULHR_TOO_LONG;
/*
* buffer[0..bufsiz] was not large enough. Copy the partial
stream->next_out = buffer;
stream->avail_out = bufsiz;
} while (status != Z_STREAM_END);
- return -1;
+ return ULHR_TOO_LONG;
}
static void *unpack_loose_rest(git_zstream *stream,
* too permissive for what we want to check. So do an anal
* object header parse by hand.
*/
-static int parse_loose_header_extended(const char *hdr, struct object_info *oi,
- unsigned int flags)
+int parse_loose_header(const char *hdr, struct object_info *oi)
{
const char *type_buf = hdr;
unsigned long size;
type = type_from_string_gently(type_buf, type_len, 1);
if (oi->type_name)
strbuf_add(oi->type_name, type_buf, type_len);
- /*
- * Set type to 0 if its an unknown object and
- * we're obtaining the type using '--allow-unknown-type'
- * option.
- */
- if ((flags & OBJECT_INFO_ALLOW_UNKNOWN_TYPE) && (type < 0))
- type = 0;
- else if (type < 0)
- die(_("invalid object type"));
if (oi->typep)
*oi->typep = type;
/*
* The length must be followed by a zero byte
*/
- return *hdr ? -1 : type;
-}
-
-int parse_loose_header(const char *hdr, unsigned long *sizep)
-{
- struct object_info oi = OBJECT_INFO_INIT;
+ if (*hdr)
+ return -1;
- oi.sizep = sizep;
- return parse_loose_header_extended(hdr, &oi, 0);
+ /*
+ * The format is valid, but the type may still be bogus. The
+ * Caller needs to check its oi->typep.
+ */
+ return 0;
}
static int loose_object_info(struct repository *r,
char hdr[MAX_HEADER_LEN];
struct strbuf hdrbuf = STRBUF_INIT;
unsigned long size_scratch;
+ enum object_type type_scratch;
+ int allow_unknown = flags & OBJECT_INFO_ALLOW_UNKNOWN_TYPE;
if (oi->delta_base_oid)
oidclr(oi->delta_base_oid);
if (!oi->sizep)
oi->sizep = &size_scratch;
+ if (!oi->typep)
+ oi->typep = &type_scratch;
if (oi->disk_sizep)
*oi->disk_sizep = mapsize;
- if ((flags & OBJECT_INFO_ALLOW_UNKNOWN_TYPE)) {
- if (unpack_loose_header_to_strbuf(&stream, map, mapsize, hdr, sizeof(hdr), &hdrbuf) < 0)
- status = error(_("unable to unpack %s header with --allow-unknown-type"),
- oid_to_hex(oid));
- } else if (unpack_loose_header(&stream, map, mapsize, hdr, sizeof(hdr)) < 0)
+
+ switch (unpack_loose_header(&stream, map, mapsize, hdr, sizeof(hdr),
+ allow_unknown ? &hdrbuf : NULL)) {
+ case ULHR_OK:
+ if (parse_loose_header(hdrbuf.len ? hdrbuf.buf : hdr, oi) < 0)
+ status = error(_("unable to parse %s header"), oid_to_hex(oid));
+ else if (!allow_unknown && *oi->typep < 0)
+ die(_("invalid object type"));
+
+ if (!oi->contentp)
+ break;
+ *oi->contentp = unpack_loose_rest(&stream, hdr, *oi->sizep, oid);
+ if (*oi->contentp)
+ goto cleanup;
+
+ status = -1;
+ break;
+ case ULHR_BAD:
status = error(_("unable to unpack %s header"),
oid_to_hex(oid));
- if (status < 0)
- ; /* Do nothing */
- else if (hdrbuf.len) {
- if ((status = parse_loose_header_extended(hdrbuf.buf, oi, flags)) < 0)
- status = error(_("unable to parse %s header with --allow-unknown-type"),
- oid_to_hex(oid));
- } else if ((status = parse_loose_header_extended(hdr, oi, flags)) < 0)
- status = error(_("unable to parse %s header"), oid_to_hex(oid));
-
- if (status >= 0 && oi->contentp) {
- *oi->contentp = unpack_loose_rest(&stream, hdr,
- *oi->sizep, oid);
- if (!*oi->contentp) {
- git_inflate_end(&stream);
- status = -1;
- }
- } else
- git_inflate_end(&stream);
+ break;
+ case ULHR_TOO_LONG:
+ status = error(_("header for %s too long, exceeds %d bytes"),
+ oid_to_hex(oid), MAX_HEADER_LEN);
+ break;
+ }
+ git_inflate_end(&stream);
+cleanup:
munmap(map, mapsize);
- if (status && oi->typep)
- *oi->typep = status;
if (oi->sizep == &size_scratch)
oi->sizep = NULL;
strbuf_release(&hdrbuf);
+ if (oi->typep == &type_scratch)
+ oi->typep = NULL;
oi->whence = OI_LOOSE;
- return (status < 0) ? status : 0;
+ return status;
}
int obj_read_use_lock = 0;
break;
}
- if (register_all_submodule_odb_as_alternates())
+ /*
+ * If r is the_repository, this might be an attempt at
+ * accessing a submodule object as if it were in the_repository
+ * (having called add_submodule_odb() on that submodule's ODB).
+ * If any such ODBs exist, register them and try again.
+ */
+ if (r == the_repository &&
+ register_all_submodule_odb_as_alternates())
/* We added some alternates; retry */
continue;
int read_loose_object(const char *path,
const struct object_id *expected_oid,
- enum object_type *type,
- unsigned long *size,
- void **contents)
+ struct object_id *real_oid,
+ void **contents,
+ struct object_info *oi)
{
int ret = -1;
void *map = NULL;
unsigned long mapsize;
git_zstream stream;
char hdr[MAX_HEADER_LEN];
-
- *contents = NULL;
+ unsigned long *size = oi->sizep;
map = map_loose_object_1(the_repository, path, NULL, &mapsize);
if (!map) {
goto out;
}
- if (unpack_loose_header(&stream, map, mapsize, hdr, sizeof(hdr)) < 0) {
+ if (unpack_loose_header(&stream, map, mapsize, hdr, sizeof(hdr),
+ NULL) < 0) {
error(_("unable to unpack header of %s"), path);
goto out;
}
- *type = parse_loose_header(hdr, size);
- if (*type < 0) {
+ if (parse_loose_header(hdr, oi) < 0) {
error(_("unable to parse header of %s"), path);
git_inflate_end(&stream);
goto out;
}
- if (*type == OBJ_BLOB && *size > big_file_threshold) {
+ if (*oi->typep == OBJ_BLOB && *size > big_file_threshold) {
if (check_stream_oid(&stream, hdr, *size, path, expected_oid) < 0)
goto out;
} else {
goto out;
}
if (check_object_signature(the_repository, expected_oid,
- *contents, *size,
- type_name(*type))) {
- error(_("hash mismatch for %s (expected %s)"), path,
- oid_to_hex(expected_oid));
+ *contents, *size, oi->type_name->buf, real_oid)) {
free(*contents);
goto out;
}
#include "refs.h"
#include "refs/refs-internal.h"
#include "run-command.h"
+#include "hook.h"
#include "object-store.h"
#include "object.h"
#include "tag.h"
return NULL;
}
-int ref_storage_backend_exists(const char *name)
-{
- return find_ref_storage_backend(name) != NULL;
-}
-
/*
* How to handle various characters in refnames:
* 0: An acceptable character for refs
* does not exist, emit a warning and return false.
*/
int ref_resolves_to_object(const char *refname,
+ struct repository *repo,
const struct object_id *oid,
unsigned int flags)
{
if (flags & REF_ISBROKEN)
return 0;
- if (!has_object_file(oid)) {
+ if (!repo_has_object_file(repo, oid)) {
error(_("%s does not point to a valid object!"), refname);
return 0;
}
strbuf_addf(&path, *p, len, str);
ref = refs_resolve_ref_unsafe(refs, path.buf,
RESOLVE_REF_READING,
- &hash, NULL);
+ oid ? &hash : NULL, NULL);
if (!ref)
continue;
if (refs_reflog_exists(refs, path.buf))
continue;
if (!logs_found++) {
*log = xstrdup(it);
- oidcpy(oid, &hash);
+ if (oid)
+ oidcpy(oid, &hash);
}
if (!warn_ambiguous_refs)
break;
}
return ref_store->be->read_raw_ref(ref_store, refname, oid, referent,
- type);
+ type, &errno);
}
/* This function needs to return a meaningful errno on failure */
* Create, record, and return a ref_store instance for the specified
* gitdir.
*/
- static struct ref_store *ref_store_init(const char *gitdir,
+ static struct ref_store *ref_store_init(struct repository *repo,
+ const char *gitdir,
unsigned int flags)
{
const char *be_name = "files";
if (!be)
BUG("reference backend %s is unknown", be_name);
- refs = be->init(gitdir, flags);
+ refs = be->init(repo, gitdir, flags);
return refs;
}
if (!r->gitdir)
BUG("attempting to get main_ref_store outside of repository");
- r->refs_private = ref_store_init(r->gitdir, REF_STORE_ALL_CAPS);
+ r->refs_private = ref_store_init(r, r->gitdir, REF_STORE_ALL_CAPS);
r->refs_private = maybe_debug_wrap_ref_store(r->gitdir, r->refs_private);
return r->refs_private;
}
struct ref_store *refs;
char *to_free = NULL;
size_t len;
+ struct repository *subrepo;
if (!submodule)
return NULL;
if (submodule_to_gitdir(&submodule_sb, submodule))
goto done;
- /* assume that add_submodule_odb() has been called */
- refs = ref_store_init(submodule_sb.buf,
+ subrepo = xmalloc(sizeof(*subrepo));
+ /*
+ * NEEDSWORK: Make get_submodule_ref_store() work with arbitrary
+ * superprojects other than the_repository. This probably should be
+ * done by making it take a struct repository * parameter instead of a
+ * submodule path.
+ */
+ if (repo_submodule_init(subrepo, the_repository, submodule,
+ null_oid())) {
+ free(subrepo);
+ goto done;
+ }
+ refs = ref_store_init(subrepo, submodule_sb.buf,
REF_STORE_READ | REF_STORE_ODB);
register_ref_store_map(&submodule_ref_stores, "submodule",
refs, submodule);
return refs;
if (wt->id)
- refs = ref_store_init(git_common_path("worktrees/%s", wt->id),
+ refs = ref_store_init(the_repository,
+ git_common_path("worktrees/%s", wt->id),
REF_STORE_ALL_CAPS);
else
- refs = ref_store_init(get_git_common_dir(),
+ refs = ref_store_init(the_repository,
+ get_git_common_dir(),
REF_STORE_ALL_CAPS);
if (refs)
}
int refs_reflog_expire(struct ref_store *refs,
- const char *refname, const struct object_id *oid,
+ const char *refname,
unsigned int flags,
reflog_expiry_prepare_fn prepare_fn,
reflog_expiry_should_prune_fn should_prune_fn,
reflog_expiry_cleanup_fn cleanup_fn,
void *policy_cb_data)
{
- return refs->be->reflog_expire(refs, refname, oid, flags,
+ return refs->be->reflog_expire(refs, refname, flags,
prepare_fn, should_prune_fn,
cleanup_fn, policy_cb_data);
}
-int reflog_expire(const char *refname, const struct object_id *oid,
+int reflog_expire(const char *refname,
unsigned int flags,
reflog_expiry_prepare_fn prepare_fn,
reflog_expiry_should_prune_fn should_prune_fn,
void *policy_cb_data)
{
return refs_reflog_expire(get_main_ref_store(the_repository),
- refname, oid, flags,
+ refname, flags,
prepare_fn, should_prune_fn,
cleanup_fn, policy_cb_data);
}
* Create a new submodule ref cache and add it to the internal
* set of caches.
*/
- static struct ref_store *files_ref_store_create(const char *gitdir,
+ static struct ref_store *files_ref_store_create(struct repository *repo,
+ const char *gitdir,
unsigned int flags)
{
struct files_ref_store *refs = xcalloc(1, sizeof(*refs));
struct ref_store *ref_store = (struct ref_store *)refs;
struct strbuf sb = STRBUF_INIT;
+ ref_store->repo = repo;
ref_store->gitdir = xstrdup(gitdir);
base_ref_store_init(ref_store, &refs_be_files);
refs->store_flags = flags;
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);
+ refs->packed_ref_store = packed_ref_store_create(repo, sb.buf, flags);
strbuf_release(&sb);
chdir_notify_reparent("files-backend $GIT_DIR", &refs->base.gitdir);
pos = search_ref_dir(dir, prefix, prefix_len);
if (pos >= 0)
continue;
- child_entry = create_dir_entry(dir->cache, prefix, prefix_len, 1);
+ child_entry = create_dir_entry(dir->cache, prefix, prefix_len);
add_entry_to_dir(dir, child_entry);
}
}
strbuf_addch(&refname, '/');
add_entry_to_dir(dir,
create_dir_entry(dir->cache, refname.buf,
- refname.len, 1));
+ refname.len));
} else {
if (!refs_resolve_ref_unsafe(&refs->base,
refname.buf,
* lazily):
*/
add_entry_to_dir(get_ref_dir(refs->loose->root),
- create_dir_entry(refs->loose, "refs/", 5, 1));
+ create_dir_entry(refs->loose, "refs/", 5));
}
return refs->loose;
}
-static int files_read_raw_ref(struct ref_store *ref_store,
- const char *refname, struct object_id *oid,
- struct strbuf *referent, unsigned int *type)
+static int files_read_raw_ref(struct ref_store *ref_store, const char *refname,
+ struct object_id *oid, struct strbuf *referent,
+ unsigned int *type, int *failure_errno)
{
struct files_ref_store *refs =
files_downcast(ref_store, REF_STORE_READ, "read_raw_ref");
struct stat st;
int fd;
int ret = -1;
- int save_errno;
int remaining_retries = 3;
*type = 0;
ret = parse_loose_ref_contents(buf, oid, referent, type);
out:
- save_errno = errno;
+ *failure_errno = errno;
strbuf_release(&sb_path);
strbuf_release(&sb_contents);
- errno = save_errno;
return ret;
}
static int lock_raw_ref(struct files_ref_store *refs,
const char *refname, int mustexist,
const struct string_list *extras,
- const struct string_list *skip,
struct ref_lock **lock_p,
struct strbuf *referent,
unsigned int *type,
struct strbuf ref_file = STRBUF_INIT;
int attempts_remaining = 3;
int ret = TRANSACTION_GENERIC_ERROR;
+ int failure_errno;
assert(err);
files_assert_main_repository(refs, "lock_raw_ref");
* reason to expect this error to be transitory.
*/
if (refs_verify_refname_available(&refs->base, refname,
- extras, skip, err)) {
+ extras, NULL, err)) {
if (mustexist) {
/*
* To the user the relevant error is
if (hold_lock_file_for_update_timeout(
&lock->lk, ref_file.buf, LOCK_NO_DEREF,
get_files_ref_lock_timeout_ms()) < 0) {
- if (errno == ENOENT && --attempts_remaining > 0) {
+ int myerr = errno;
+ errno = 0;
+ if (myerr == ENOENT && --attempts_remaining > 0) {
/*
* Maybe somebody just deleted one of the
* directories leading to ref_file. Try
*/
goto retry;
} else {
- unable_to_lock_message(ref_file.buf, errno, err);
+ unable_to_lock_message(ref_file.buf, myerr, err);
goto error_return;
}
}
* fear that its value will change.
*/
- if (files_read_raw_ref(&refs->base, refname,
- &lock->old_oid, referent, type)) {
- if (errno == ENOENT) {
+ if (files_read_raw_ref(&refs->base, refname, &lock->old_oid, referent,
+ type, &failure_errno)) {
+ if (failure_errno == ENOENT) {
if (mustexist) {
/* Garden variety missing reference. */
strbuf_addf(err, "unable to resolve reference '%s'",
* reference named "refs/foo/bar/baz".
*/
}
- } else if (errno == EISDIR) {
+ } else if (failure_errno == EISDIR) {
/*
* There is a directory in the way. It might have
* contained references that have been deleted. If
REMOVE_DIR_EMPTY_ONLY)) {
if (refs_verify_refname_available(
&refs->base, refname,
- extras, skip, err)) {
+ extras, NULL, err)) {
/*
* The error message set by
* verify_refname_available() is OK.
goto error_return;
}
}
- } else if (errno == EINVAL && (*type & REF_ISBROKEN)) {
+ } else if (failure_errno == EINVAL && (*type & REF_ISBROKEN)) {
strbuf_addf(err, "unable to resolve reference '%s': "
"reference broken", refname);
goto error_return;
} else {
strbuf_addf(err, "unable to resolve reference '%s': %s",
- refname, strerror(errno));
+ refname, strerror(failure_errno));
goto error_return;
}
*/
if (refs_verify_refname_available(
refs->packed_ref_store, refname,
- extras, skip, err))
+ extras, NULL, err))
goto error_return;
}
struct ref_iterator base;
struct ref_iterator *iter0;
+ struct repository *repo;
unsigned int flags;
};
if (!(iter->flags & DO_FOR_EACH_INCLUDE_BROKEN) &&
!ref_resolves_to_object(iter->iter0->refname,
+ iter->repo,
iter->iter0->oid,
iter->iter0->flags))
continue;
*/
loose_iter = cache_ref_iterator_begin(get_loose_ref_cache(refs),
- prefix, 1);
+ prefix, ref_store->repo, 1);
/*
* The packed-refs file might contain broken references, for
base_ref_iterator_init(ref_iterator, &files_ref_iterator_vtable,
overlay_iter->ordered);
iter->iter0 = overlay_iter;
+ iter->repo = ref_store->repo;
iter->flags = flags;
return ref_iterator;
}
/*
- * Verify that the reference locked by lock has the value old_oid
- * (unless it is NULL). Fail if the reference doesn't exist and
- * mustexist is set. Return 0 on success. On error, write an error
- * message to err, set errno, and return a negative value.
+ * Callback function for raceproof_create_file(). This function is
+ * expected to do something that makes dirname(path) permanent despite
+ * the fact that other processes might be cleaning up empty
+ * directories at the same time. Usually it will create a file named
+ * path, but alternatively it could create another file in that
+ * directory, or even chdir() into that directory. The function should
+ * return 0 if the action was completed successfully. On error, it
+ * should return a nonzero result and set errno.
+ * raceproof_create_file() treats two errno values specially:
+ *
+ * - ENOENT -- dirname(path) does not exist. In this case,
+ * raceproof_create_file() tries creating dirname(path)
+ * (and any parent directories, if necessary) and calls
+ * the function again.
+ *
+ * - EISDIR -- the file already exists and is a directory. In this
+ * case, raceproof_create_file() removes the directory if
+ * it is empty (and recursively any empty directories that
+ * it contains) and calls the function again.
+ *
+ * Any other errno causes raceproof_create_file() to fail with the
+ * callback's return value and errno.
+ *
+ * Obviously, this function should be OK with being called again if it
+ * fails with ENOENT or EISDIR. In other scenarios it will not be
+ * called again.
+ */
+typedef int create_file_fn(const char *path, void *cb);
+
+/*
+ * Create a file in dirname(path) by calling fn, creating leading
+ * directories if necessary. Retry a few times in case we are racing
+ * with another process that is trying to clean up the directory that
+ * contains path. See the documentation for create_file_fn for more
+ * details.
+ *
+ * Return the value and set the errno that resulted from the most
+ * recent call of fn. fn is always called at least once, and will be
+ * called more than once if it returns ENOENT or EISDIR.
*/
-static int verify_lock(struct ref_store *ref_store, struct ref_lock *lock,
- const struct object_id *old_oid, int mustexist,
- struct strbuf *err)
+static int raceproof_create_file(const char *path, create_file_fn fn, void *cb)
{
- assert(err);
+ /*
+ * The number of times we will try to remove empty directories
+ * in the way of path. This is only 1 because if another
+ * process is racily creating directories that conflict with
+ * us, we don't want to fight against them.
+ */
+ int remove_directories_remaining = 1;
- if (refs_read_ref_full(ref_store, lock->ref_name,
- mustexist ? RESOLVE_REF_READING : 0,
- &lock->old_oid, NULL)) {
- if (old_oid) {
- int save_errno = errno;
- strbuf_addf(err, "can't verify ref '%s'", lock->ref_name);
- errno = save_errno;
- return -1;
- } else {
- oidclr(&lock->old_oid);
- return 0;
- }
- }
- 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),
- oid_to_hex(old_oid));
- errno = EBUSY;
- return -1;
+ /*
+ * The number of times that we will try to create the
+ * directories containing path. We are willing to attempt this
+ * more than once, because another process could be trying to
+ * clean up empty directories at the same time as we are
+ * trying to create them.
+ */
+ int create_directories_remaining = 3;
+
+ /* A scratch copy of path, filled lazily if we need it: */
+ struct strbuf path_copy = STRBUF_INIT;
+
+ int ret, save_errno;
+
+ /* Sanity check: */
+ assert(*path);
+
+retry_fn:
+ ret = fn(path, cb);
+ save_errno = errno;
+ if (!ret)
+ goto out;
+
+ if (errno == EISDIR && remove_directories_remaining-- > 0) {
+ /*
+ * A directory is in the way. Maybe it is empty; try
+ * to remove it:
+ */
+ if (!path_copy.len)
+ strbuf_addstr(&path_copy, path);
+
+ if (!remove_dir_recursively(&path_copy, REMOVE_DIR_EMPTY_ONLY))
+ goto retry_fn;
+ } else if (errno == ENOENT && create_directories_remaining-- > 0) {
+ /*
+ * Maybe the containing directory didn't exist, or
+ * maybe it was just deleted by a process that is
+ * racing with us to clean up empty directories. Try
+ * to create it:
+ */
+ enum scld_error scld_result;
+
+ if (!path_copy.len)
+ strbuf_addstr(&path_copy, path);
+
+ do {
+ scld_result = safe_create_leading_directories(path_copy.buf);
+ if (scld_result == SCLD_OK)
+ goto retry_fn;
+ } while (scld_result == SCLD_VANISHED && create_directories_remaining-- > 0);
}
- return 0;
+
+out:
+ strbuf_release(&path_copy);
+ errno = save_errno;
+ return ret;
}
static int remove_empty_directories(struct strbuf *path)
/*
* Locks a ref returning the lock on success and NULL on failure.
- * On failure errno is set to something meaningful.
*/
static struct ref_lock *lock_ref_oid_basic(struct files_ref_store *refs,
- const char *refname,
- const struct object_id *old_oid,
- const struct string_list *extras,
- const struct string_list *skip,
- unsigned int flags, int *type,
+ const char *refname, int *type,
struct strbuf *err)
{
struct strbuf ref_file = STRBUF_INIT;
struct ref_lock *lock;
- int last_errno = 0;
- int mustexist = (old_oid && !is_null_oid(old_oid));
- int resolve_flags = RESOLVE_REF_NO_RECURSE;
- int resolved;
files_assert_main_repository(refs, "lock_ref_oid_basic");
assert(err);
CALLOC_ARRAY(lock, 1);
- if (mustexist)
- resolve_flags |= RESOLVE_REF_READING;
- if (flags & REF_DELETING)
- resolve_flags |= RESOLVE_REF_ALLOW_BAD_NAME;
-
files_ref_path(refs, &ref_file, refname);
- resolved = !!refs_resolve_ref_unsafe(&refs->base,
- refname, resolve_flags,
- &lock->old_oid, type);
- if (!resolved && errno == EISDIR) {
- /*
- * we are trying to lock foo but we used to
- * have foo/bar which now does not exist;
- * it is normal for the empty directory 'foo'
- * to remain.
- */
- if (remove_empty_directories(&ref_file)) {
- last_errno = errno;
- if (!refs_verify_refname_available(
- &refs->base,
- refname, extras, skip, err))
- strbuf_addf(err, "there are still refs under '%s'",
- refname);
- goto error_return;
- }
- resolved = !!refs_resolve_ref_unsafe(&refs->base,
- refname, resolve_flags,
- &lock->old_oid, type);
- }
- if (!resolved) {
- last_errno = errno;
- if (last_errno != ENOTDIR ||
- !refs_verify_refname_available(&refs->base, refname,
- extras, skip, err))
+ if (!refs_resolve_ref_unsafe(&refs->base, refname,
+ RESOLVE_REF_NO_RECURSE,
+ &lock->old_oid, type)) {
+ if (!refs_verify_refname_available(&refs->base, refname,
+ NULL, NULL, err))
strbuf_addf(err, "unable to resolve reference '%s': %s",
- refname, strerror(last_errno));
+ refname, strerror(errno));
goto error_return;
}
*/
if (is_null_oid(&lock->old_oid) &&
refs_verify_refname_available(refs->packed_ref_store, refname,
- extras, skip, err)) {
- last_errno = ENOTDIR;
+ NULL, NULL, err))
goto error_return;
- }
lock->ref_name = xstrdup(refname);
if (raceproof_create_file(ref_file.buf, create_reflock, &lock->lk)) {
- last_errno = errno;
unable_to_lock_message(ref_file.buf, errno, err);
goto error_return;
}
- if (verify_lock(&refs->base, lock, old_oid, mustexist, err)) {
- last_errno = errno;
- goto error_return;
- }
+ if (refs_read_ref_full(&refs->base, lock->ref_name,
+ 0,
+ &lock->old_oid, NULL))
+ oidclr(&lock->old_oid);
goto out;
error_return:
out:
strbuf_release(&ref_file);
- errno = last_errno;
return lock;
}
return 0;
/* Do not pack broken refs: */
- if (!ref_resolves_to_object(refname, oid, ref_flags))
+ if (!ref_resolves_to_object(refname, the_repository, oid, ref_flags))
return 0;
return 1;
packed_refs_lock(refs->packed_ref_store, LOCK_DIE_ON_ERROR, &err);
- iter = cache_ref_iterator_begin(get_loose_ref_cache(refs), NULL, 0);
+ iter = cache_ref_iterator_begin(get_loose_ref_cache(refs), NULL,
+ the_repository, 0);
while ((ok = ref_iterator_advance(iter)) == ITER_OK) {
/*
* If the loose reference can be packed, add an entry
logmoved = log;
- lock = lock_ref_oid_basic(refs, newrefname, NULL, NULL, NULL,
- REF_NO_DEREF, NULL, &err);
+ lock = lock_ref_oid_basic(refs, newrefname, NULL, &err);
if (!lock) {
if (copy)
error("unable to copy '%s' to '%s': %s", oldrefname, newrefname, err.buf);
goto out;
rollback:
- lock = lock_ref_oid_basic(refs, oldrefname, NULL, NULL, NULL,
- REF_NO_DEREF, NULL, &err);
+ lock = lock_ref_oid_basic(refs, oldrefname, NULL, &err);
if (!lock) {
error("unable to lock %s for rollback: %s", oldrefname, err.buf);
strbuf_release(&err);
struct ref_lock *lock;
int ret;
- lock = lock_ref_oid_basic(refs, refname, NULL,
- NULL, NULL, REF_NO_DEREF, NULL,
- &err);
+ lock = lock_ref_oid_basic(refs, refname, NULL, &err);
if (!lock) {
error("%s", err.buf);
strbuf_release(&err);
}
ret = lock_raw_ref(refs, update->refname, mustexist,
- affected_refnames, NULL,
+ affected_refnames,
&lock, &referent,
&update->type, err);
if (ret) {
}
static int files_reflog_expire(struct ref_store *ref_store,
- const char *refname, const struct object_id *oid,
+ const char *refname,
unsigned int flags,
reflog_expiry_prepare_fn prepare_fn,
reflog_expiry_should_prune_fn should_prune_fn,
int status = 0;
int type;
struct strbuf err = STRBUF_INIT;
+ const struct object_id *oid;
memset(&cb, 0, sizeof(cb));
cb.flags = flags;
* reference itself, plus we might need to update the
* reference if --updateref was specified:
*/
- lock = lock_ref_oid_basic(refs, refname, oid,
- NULL, NULL, REF_NO_DEREF,
- &type, &err);
+ lock = lock_ref_oid_basic(refs, refname, &type, &err);
if (!lock) {
error("cannot lock ref '%s': %s", refname, err.buf);
strbuf_release(&err);
return -1;
}
+ oid = &lock->old_oid;
+
+ /*
+ * When refs are deleted, their reflog is deleted before the
+ * ref itself is deleted. This is because there is no separate
+ * lock for reflog; instead we take a lock on the ref with
+ * lock_ref_oid_basic().
+ *
+ * If a race happens and the reflog doesn't exist after we've
+ * acquired the lock that's OK. We've got nothing more to do;
+ * We were asked to delete the reflog, but someone else
+ * deleted it! The caller doesn't care that we deleted it,
+ * just that it is deleted. So we can return successfully.
+ */
if (!refs_reflog_exists(ref_store, refname)) {
unlock_ref(lock);
return 0;
}
}
- struct ref_store *packed_ref_store_create(const char *path,
+ struct ref_store *packed_ref_store_create(struct repository *repo,
+ const char *path,
unsigned int store_flags)
{
struct packed_ref_store *refs = xcalloc(1, sizeof(*refs));
struct ref_store *ref_store = (struct ref_store *)refs;
base_ref_store_init(ref_store, &refs_be_packed);
+ ref_store->repo = repo;
ref_store->gitdir = xstrdup(path);
refs->store_flags = store_flags;
return refs->snapshot;
}
-static int packed_read_raw_ref(struct ref_store *ref_store,
- const char *refname, struct object_id *oid,
- struct strbuf *referent, unsigned int *type)
+static int packed_read_raw_ref(struct ref_store *ref_store, const char *refname,
+ struct object_id *oid, struct strbuf *referent,
+ unsigned int *type, int *failure_errno)
{
struct packed_ref_store *refs =
packed_downcast(ref_store, REF_STORE_READ, "read_raw_ref");
if (!rec) {
/* refname is not a packed reference. */
- errno = ENOENT;
+ *failure_errno = ENOENT;
return -1;
}
struct object_id oid, peeled;
struct strbuf refname_buf;
+ struct repository *repo;
unsigned int flags;
};
continue;
if (!(iter->flags & DO_FOR_EACH_INCLUDE_BROKEN) &&
- !ref_resolves_to_object(iter->base.refname, &iter->oid,
- iter->flags))
+ !ref_resolves_to_object(iter->base.refname, iter->repo,
+ &iter->oid, iter->flags))
continue;
return ITER_OK;
struct packed_ref_iterator *iter =
(struct packed_ref_iterator *)ref_iterator;
+ if (iter->repo != the_repository)
+ BUG("peeling for non-the_repository is not supported");
+
if ((iter->base.flags & REF_KNOWS_PEELED)) {
oidcpy(peeled, &iter->peeled);
return is_null_oid(&iter->peeled) ? -1 : 0;
iter->base.oid = &iter->oid;
+ iter->repo = ref_store->repo;
iter->flags = flags;
if (prefix && *prefix)
const char *refname,
each_reflog_ent_fn fn, void *cb_data)
{
+ BUG("packed reference store does not support reflogs");
return 0;
}
each_reflog_ent_fn fn,
void *cb_data)
{
+ BUG("packed reference store does not support reflogs");
return 0;
}
static int packed_reflog_exists(struct ref_store *ref_store,
const char *refname)
{
+ BUG("packed reference store does not support reflogs");
return 0;
}
static int packed_delete_reflog(struct ref_store *ref_store,
const char *refname)
{
+ BUG("packed reference store does not support reflogs");
return 0;
}
static int packed_reflog_expire(struct ref_store *ref_store,
- const char *refname, const struct object_id *oid,
+ const char *refname,
unsigned int flags,
reflog_expiry_prepare_fn prepare_fn,
reflog_expiry_should_prune_fn should_prune_fn,
reflog_expiry_cleanup_fn cleanup_fn,
void *policy_cb_data)
{
+ BUG("packed reference store does not support reflogs");
return 0;
}
ret->ref_store = refs;
ret->fill_ref_dir = fill_ref_dir;
- ret->root = create_dir_entry(ret, "", 0, 1);
+ ret->root = create_dir_entry(ret, "", 0);
return ret;
}
}
struct ref_entry *create_dir_entry(struct ref_cache *cache,
- const char *dirname, size_t len,
- int incomplete)
+ const char *dirname, size_t len)
{
struct ref_entry *direntry;
FLEX_ALLOC_MEM(direntry, name, dirname, len);
direntry->u.subdir.cache = cache;
- direntry->flag = REF_DIR | (incomplete ? REF_INCOMPLETE : 0);
+ direntry->flag = REF_DIR | REF_INCOMPLETE;
return direntry;
}
/*
* Search for a directory entry directly within dir (without
* recursing). Sort dir if necessary. subdirname must be a directory
- * name (i.e., end in '/'). If mkdir is set, then create the
- * directory if it is missing; otherwise, return NULL if the desired
+ * name (i.e., end in '/'). Returns NULL if the desired
* directory cannot be found. dir must already be complete.
*/
static struct ref_dir *search_for_subdir(struct ref_dir *dir,
- const char *subdirname, size_t len,
- int mkdir)
+ const char *subdirname, size_t len)
{
int entry_index = search_ref_dir(dir, subdirname, len);
struct ref_entry *entry;
- if (entry_index == -1) {
- if (!mkdir)
- return NULL;
- /*
- * Since dir is complete, the absence of a subdir
- * means that the subdir really doesn't exist;
- * therefore, create an empty record for it but mark
- * the record complete.
- */
- entry = create_dir_entry(dir->cache, subdirname, len, 0);
- add_entry_to_dir(dir, entry);
- } else {
- entry = dir->entries[entry_index];
- }
+
+ if (entry_index == -1)
+ return NULL;
+
+ entry = dir->entries[entry_index];
return get_ref_dir(entry);
}
* tree that should hold refname. If refname is a directory name
* (i.e., it ends in '/'), then return that ref_dir itself. dir must
* represent the top-level directory and must already be complete.
- * Sort ref_dirs and recurse into subdirectories as necessary. If
- * mkdir is set, then create any missing directories; otherwise,
+ * Sort ref_dirs and recurse into subdirectories as necessary. Will
* return NULL if the desired directory cannot be found.
*/
static struct ref_dir *find_containing_dir(struct ref_dir *dir,
- const char *refname, int mkdir)
+ const char *refname)
{
const char *slash;
for (slash = strchr(refname, '/'); slash; slash = strchr(slash + 1, '/')) {
size_t dirnamelen = slash - refname + 1;
struct ref_dir *subdir;
- subdir = search_for_subdir(dir, refname, dirnamelen, mkdir);
+ subdir = search_for_subdir(dir, refname, dirnamelen);
if (!subdir) {
dir = NULL;
break;
{
int entry_index;
struct ref_entry *entry;
- dir = find_containing_dir(dir, refname, 0);
+ dir = find_containing_dir(dir, refname);
if (!dir)
return NULL;
entry_index = search_ref_dir(dir, refname, strlen(refname));
return (entry->flag & REF_DIR) ? NULL : entry;
}
-int remove_entry_from_dir(struct ref_dir *dir, const char *refname)
-{
- int refname_len = strlen(refname);
- int entry_index;
- struct ref_entry *entry;
- int is_dir = refname[refname_len - 1] == '/';
- if (is_dir) {
- /*
- * refname represents a reference directory. Remove
- * the trailing slash; otherwise we will get the
- * directory *representing* refname rather than the
- * one *containing* it.
- */
- char *dirname = xmemdupz(refname, refname_len - 1);
- dir = find_containing_dir(dir, dirname, 0);
- free(dirname);
- } else {
- dir = find_containing_dir(dir, refname, 0);
- }
- if (!dir)
- return -1;
- entry_index = search_ref_dir(dir, refname, refname_len);
- if (entry_index == -1)
- return -1;
- entry = dir->entries[entry_index];
-
- MOVE_ARRAY(&dir->entries[entry_index],
- &dir->entries[entry_index + 1], dir->nr - entry_index - 1);
- dir->nr--;
- if (dir->sorted > entry_index)
- dir->sorted--;
- free_ref_entry(entry);
- return dir->nr;
-}
-
-int add_ref_entry(struct ref_dir *dir, struct ref_entry *ref)
-{
- dir = find_containing_dir(dir, ref->name, 1);
- if (!dir)
- return -1;
- add_entry_to_dir(dir, ref);
- return 0;
-}
-
/*
* Emit a warning and return true iff ref1 and ref2 have the same name
* and the same oid. Die if they have the same name but different
* on from there.)
*/
struct cache_ref_iterator_level *levels;
+
+ struct repository *repo;
};
static int cache_ref_iterator_advance(struct ref_iterator *ref_iterator)
static int cache_ref_iterator_peel(struct ref_iterator *ref_iterator,
struct object_id *peeled)
{
+ struct cache_ref_iterator *iter =
+ (struct cache_ref_iterator *)ref_iterator;
+
+ if (iter->repo != the_repository)
+ BUG("peeling for non-the_repository is not supported");
return peel_object(ref_iterator->oid, peeled) ? -1 : 0;
}
struct ref_iterator *cache_ref_iterator_begin(struct ref_cache *cache,
const char *prefix,
+ struct repository *repo,
int prime_dir)
{
struct ref_dir *dir;
dir = get_ref_dir(cache->root);
if (prefix && *prefix)
- dir = find_containing_dir(dir, prefix, 0);
+ dir = find_containing_dir(dir, prefix);
if (!dir)
/* There's nothing to iterate over. */
return empty_ref_iterator_begin();
level->prefix_state = PREFIX_CONTAINS_DIR;
}
+ iter->repo = repo;
+
return ref_iterator;
}
* "refs/heads/") or "" for the top-level directory.
*/
struct ref_entry *create_dir_entry(struct ref_cache *cache,
- const char *dirname, size_t len,
- int incomplete);
+ const char *dirname, size_t len);
struct ref_entry *create_ref_entry(const char *refname,
const struct object_id *oid, int flag);
*/
void add_entry_to_dir(struct ref_dir *dir, struct ref_entry *entry);
-/*
- * Remove the entry with the given name from dir, recursing into
- * subdirectories as necessary. If refname is the name of a directory
- * (i.e., ends with '/'), then remove the directory and its contents.
- * If the removal was successful, return the number of entries
- * remaining in the directory entry that contained the deleted entry.
- * If the name was not found, return -1. Please note that this
- * function only deletes the entry from the cache; it does not delete
- * it from the filesystem or ensure that other cache entries (which
- * might be symbolic references to the removed entry) are updated.
- * Nor does it remove any containing dir entries that might be made
- * empty by the removal. dir must represent the top-level directory
- * and must already be complete.
- */
-int remove_entry_from_dir(struct ref_dir *dir, const char *refname);
-
-/*
- * Add a ref_entry to the ref_dir (unsorted), recursing into
- * subdirectories as necessary. dir must represent the top-level
- * directory. Return 0 on success.
- */
-int add_ref_entry(struct ref_dir *dir, struct ref_entry *ref);
-
/*
* Find the value entry with the given name in dir, sorting ref_dirs
* and recursing into subdirectories as necessary. If the name is not
*/
struct ref_iterator *cache_ref_iterator_begin(struct ref_cache *cache,
const char *prefix,
+ struct repository *repo,
int prime_dir);
#endif /* REFS_REF_CACHE_H */
* referred-to object does not exist, emit a warning and return false.
*/
int ref_resolves_to_object(const char *refname,
+ struct repository *repo,
const struct object_id *oid,
unsigned int flags);
* should call base_ref_store_init() to initialize the shared part of
* the ref_store and to record the ref_store for later lookup.
*/
- typedef struct ref_store *ref_store_init_fn(const char *gitdir,
+ typedef struct ref_store *ref_store_init_fn(struct repository *repo,
+ const char *gitdir,
unsigned int flags);
typedef int ref_init_db_fn(struct ref_store *refs, struct strbuf *err);
int force_create, struct strbuf *err);
typedef int delete_reflog_fn(struct ref_store *ref_store, const char *refname);
typedef int reflog_expire_fn(struct ref_store *ref_store,
- const char *refname, const struct object_id *oid,
+ const char *refname,
unsigned int flags,
reflog_expiry_prepare_fn prepare_fn,
reflog_expiry_should_prune_fn should_prune_fn,
* properly-formatted or even safe reference name. NEITHER INPUT NOR
* OUTPUT REFERENCE NAMES ARE VALIDATED WITHIN THIS FUNCTION.
*
- * Return 0 on success. If the ref doesn't exist, set errno to ENOENT
- * and return -1. If the ref exists but is neither a symbolic ref nor
- * an object ID, it is broken; set REF_ISBROKEN in type, set errno to
- * EINVAL, and return -1. If there is another error reading the ref,
- * set errno appropriately and return -1.
+ * Return 0 on success, or -1 on failure. If the ref exists but is neither a
+ * symbolic ref nor an object ID, it is broken. In this case set REF_ISBROKEN in
+ * type, and return -1 (failure_errno should not be ENOENT)
+ *
+ * failure_errno provides errno codes that are interpreted beyond error
+ * reporting. The following error codes have special meaning:
+ * * ENOENT: the ref doesn't exist
+ * * EISDIR: ref name is a directory
+ * * ENOTDIR: ref prefix is not a directory
*
* Backend-specific flags might be set in type as well, regardless of
* outcome.
* - in all other cases, referent will be untouched, and therefore
* refname will still be valid and unchanged.
*/
-typedef int read_raw_ref_fn(struct ref_store *ref_store,
- const char *refname, struct object_id *oid,
- struct strbuf *referent, unsigned int *type);
+typedef int read_raw_ref_fn(struct ref_store *ref_store, const char *refname,
+ struct object_id *oid, struct strbuf *referent,
+ unsigned int *type, int *failure_errno);
struct ref_storage_be {
struct ref_storage_be *next;
/* The backend describing this ref_store's storage scheme: */
const struct ref_storage_be *be;
- /* The gitdir that this ref_store applies to: */
+ struct repository *repo;
+
+ /*
+ * The gitdir that this ref_store applies to. Note that this is not
+ * necessarily repo->gitdir if the repo has multiple worktrees.
+ */
char *gitdir;
};
};
extern char strbuf_slopbuf[];
-#define STRBUF_INIT { .alloc = 0, .len = 0, .buf = strbuf_slopbuf }
+#define STRBUF_INIT { .buf = strbuf_slopbuf }
/*
* Predeclare this here, since cache.h includes this file before it defines the
* Add the abbreviation, as generated by find_unique_abbrev, of `sha1` to
* the strbuf `sb`.
*/
- void strbuf_add_unique_abbrev(struct strbuf *sb,
- const struct object_id *oid,
+ struct repository;
+ void strbuf_repo_add_unique_abbrev(struct strbuf *sb, struct repository *repo,
+ const struct object_id *oid, int abbrev_len);
+ void strbuf_add_unique_abbrev(struct strbuf *sb, const struct object_id *oid,
int abbrev_len);
/**
add_to_alternates_memory(added_submodule_odb_paths.items[i].string);
if (ret) {
string_list_clear(&added_submodule_odb_paths, 0);
+ trace2_data_intmax("submodule", the_repository,
+ "register_all_submodule_odb_as_alternates/registered", ret);
if (git_env_bool("GIT_TEST_FATAL_REGISTER_SUBMODULE_ODB", 0))
BUG("register_all_submodule_odb_as_alternates() called");
}
static int check_has_commit(const struct object_id *oid, void *data)
{
struct has_commit_data *cb = data;
+ struct repository subrepo;
+ enum object_type type;
- enum object_type type = oid_object_info(cb->repo, oid, NULL);
+ if (repo_submodule_init(&subrepo, cb->repo, cb->path, null_oid())) {
+ cb->result = 0;
+ goto cleanup;
+ }
+
+ type = oid_object_info(&subrepo, oid, NULL);
switch (type) {
case OBJ_COMMIT:
- return 0;
+ goto cleanup;
case OBJ_BAD:
/*
* Object is missing or invalid. If invalid, an error message
* has already been printed.
*/
cb->result = 0;
- return 0;
+ goto cleanup;
default:
die(_("submodule entry '%s' (%s) is a %s, not a commit"),
cb->path, oid_to_hex(oid), type_name(type));
}
+ cleanup:
+ repo_clear(&subrepo);
+ return 0;
}
static int submodule_has_commits(struct repository *r,
struct strbuf submodules_with_errors;
};
-#define SPF_INIT {0, STRVEC_INIT, NULL, NULL, 0, 0, 0, 0, \
- STRING_LIST_INIT_DUP, \
- NULL, 0, 0, STRBUF_INIT}
+#define SPF_INIT { \
+ .args = STRVEC_INIT, \
+ .changed_submodule_names = STRING_LIST_INIT_DUP, \
+ .submodules_with_errors = STRBUF_INIT, \
+}
static int get_fetch_recurse_config(const struct submodule *submodule,
struct submodule_parallel_fetch *spf)
strvec_pushf(&cp.args, "--super-prefix=%s%s/",
get_super_prefix_or_empty(), path);
+ /* TODO: determine if this might overwright untracked files */
strvec_pushl(&cp.args, "read-tree", "-u", "--reset", NULL);
strvec_push(&cp.args, empty_tree_oid_hex());
GIT_TEST_SPLIT_INDEX=<boolean> forces split-index mode on the whole
test suite. Accept any boolean values that are accepted by git-config.
+GIT_TEST_PASSING_SANITIZE_LEAK=<boolean> when compiled with
+SANITIZE=leak will run only those tests that have whitelisted
+themselves as passing with no memory leaks. Tests can be whitelisted
+by setting "TEST_PASSES_SANITIZE_LEAK=true" before sourcing
+"test-lib.sh" itself at the top of the test script. This test mode is
+used by the "linux-leaks" CI target.
+
GIT_TEST_PROTOCOL_VERSION=<n>, when set, makes 'protocol.version'
default to n.
registering submodule ODBs as alternates a fatal action. Support for
this environment variable can be removed once the migration to
explicitly providing repositories when accessing submodule objects is
- complete (in which case we might want to replace this with a trace2
- call so that users can make it visible if accessing submodule objects
- without an explicit repository still happens) or needs to be abandoned
- for whatever reason (in which case the migrated codepaths still retain
- their performance benefits).
+ complete or needs to be abandoned for whatever reason (in which case the
+ migrated codepaths still retain their performance benefits).
Naming Tests
------------
projects / thirdparty / git.git / commitdiff
