* a Linking Exception. For full terms see the included COPYING file.
*/
+#include "refdb_fs.h"
+
#include "refs.h"
#include "hash.h"
#include "repository.h"
-#include "fileops.h"
+#include "futils.h"
#include "filebuf.h"
#include "pack.h"
+#include "parse.h"
#include "reflog.h"
#include "refdb.h"
-#include "refdb_fs.h"
#include "iterator.h"
#include "sortedcache.h"
#include "signature.h"
+#include "wildmatch.h"
#include <git2/tag.h>
#include <git2/object.h>
#include <git2/sys/refs.h>
#include <git2/sys/reflog.h>
-GIT__USE_STRMAP
-
#define DEFAULT_NESTING_LEVEL 5
#define MAX_NESTING_LEVEL 10
git_refdb_backend parent;
git_repository *repo;
- char *path;
+ /* path to git directory */
+ char *gitpath;
+ /* path to common objects' directory */
+ char *commonpath;
git_sortedcache *refcache;
int peeling_mode;
git_iterator_flag_t iterator_flags;
uint32_t direach_flags;
+ int fsync;
} refdb_fs_backend;
static int refdb_reflog_fs__delete(git_refdb_backend *_backend, const char *name);
git_buf packedrefs = GIT_BUF_INIT;
char *scan, *eof, *eol;
- if (!backend->path)
+ if (!backend->gitpath)
return 0;
error = git_sortedcache_lockandload(backend->refcache, &packedrefs);
if (error <= 0) {
if (error == GIT_ENOTFOUND) {
git_sortedcache_clear(backend->refcache, true);
- giterr_clear();
+ git_error_clear();
error = 0;
}
return error;
}
git_sortedcache_wunlock(backend->refcache);
- git_buf_free(&packedrefs);
+ git_buf_dispose(&packedrefs);
return 0;
parse_failed:
- giterr_set(GITERR_REFERENCE, "Corrupted packed references file");
+ git_error_set(GIT_ERROR_REFERENCE, "corrupted packed references file");
git_sortedcache_clear(backend->refcache, false);
git_sortedcache_wunlock(backend->refcache);
- git_buf_free(&packedrefs);
+ git_buf_dispose(&packedrefs);
return -1;
}
return 0;
corrupted:
- giterr_set(GITERR_REFERENCE, "Corrupted loose reference file: %s", filename);
+ git_error_set(GIT_ERROR_REFERENCE, "corrupted loose reference file: %s", filename);
return -1;
}
/* build full path to file */
if ((error = git_buf_joinpath(buf, base, path)) < 0 ||
(error = git_futils_readbuffer(buf, buf->ptr)) < 0)
- git_buf_free(buf);
+ git_buf_dispose(buf);
return error;
}
/* if we fail to load the loose reference, assume someone changed
* the filesystem under us and skip it...
*/
- if (loose_readbuffer(&ref_file, backend->path, name) < 0) {
- giterr_clear();
+ if (loose_readbuffer(&ref_file, backend->gitpath, name) < 0) {
+ git_error_clear();
goto done;
}
git_sortedcache_wunlock(backend->refcache);
done:
- git_buf_free(&ref_file);
+ git_buf_dispose(&ref_file);
return error;
}
full_path, backend->direach_flags, _dirent_loose_load, backend);
/* Race with the filesystem, ignore it */
if (error == GIT_ENOTFOUND) {
- giterr_clear();
+ git_error_clear();
return 0;
}
return error;
}
- file_path = full_path->ptr + strlen(backend->path);
+ file_path = full_path->ptr + strlen(backend->gitpath);
return loose_lookup_to_packfile(backend, file_path);
}
int error;
git_buf refs_path = GIT_BUF_INIT;
- if (git_buf_joinpath(&refs_path, backend->path, GIT_REFS_DIR) < 0)
+ if (git_buf_joinpath(&refs_path, backend->gitpath, GIT_REFS_DIR) < 0)
return -1;
/*
error = git_path_direach(
&refs_path, backend->direach_flags, _dirent_loose_load, backend);
- git_buf_free(&refs_path);
+ git_buf_dispose(&refs_path);
return error;
}
git_refdb_backend *_backend,
const char *ref_name)
{
- refdb_fs_backend *backend = (refdb_fs_backend *)_backend;
+ refdb_fs_backend *backend = GIT_CONTAINER_OF(_backend, refdb_fs_backend, parent);
git_buf ref_path = GIT_BUF_INIT;
+ int error;
assert(backend);
- if (packed_reload(backend) < 0 ||
- git_buf_joinpath(&ref_path, backend->path, ref_name) < 0)
- return -1;
+ *exists = 0;
- *exists = git_path_isfile(ref_path.ptr) ||
- (git_sortedcache_lookup(backend->refcache, ref_name) != NULL);
+ if ((error = git_buf_joinpath(&ref_path, backend->gitpath, ref_name)) < 0)
+ goto out;
- git_buf_free(&ref_path);
- return 0;
+ if (git_path_isfile(ref_path.ptr)) {
+ *exists = 1;
+ goto out;
+ }
+
+ if ((error = packed_reload(backend)) < 0)
+ goto out;
+
+ if (git_sortedcache_lookup(backend->refcache, ref_name) != NULL) {
+ *exists = 1;
+ goto out;
+ }
+
+out:
+ git_buf_dispose(&ref_path);
+ return error;
}
static const char *loose_parse_symbolic(git_buf *file_content)
refname_start = (const char *)file_content->ptr;
if (git_buf_len(file_content) < header_len + 1) {
- giterr_set(GITERR_REFERENCE, "Corrupted loose reference file");
+ git_error_set(GIT_ERROR_REFERENCE, "corrupted loose reference file");
return NULL;
}
return refname_start;
}
+/*
+ * Returns whether a reference is stored per worktree or not.
+ * Per-worktree references are:
+ *
+ * - all pseudorefs, e.g. HEAD and MERGE_HEAD
+ * - all references stored inside of "refs/bisect/"
+ */
+static bool is_per_worktree_ref(const char *ref_name)
+{
+ return git__prefixcmp(ref_name, "refs/") != 0 ||
+ git__prefixcmp(ref_name, "refs/bisect/") == 0;
+}
+
static int loose_lookup(
git_reference **out,
refdb_fs_backend *backend,
{
git_buf ref_file = GIT_BUF_INIT;
int error = 0;
+ const char *ref_dir;
if (out)
*out = NULL;
- if ((error = loose_readbuffer(&ref_file, backend->path, ref_name)) < 0)
+ if (is_per_worktree_ref(ref_name))
+ ref_dir = backend->gitpath;
+ else
+ ref_dir = backend->commonpath;
+
+ if ((error = loose_readbuffer(&ref_file, ref_dir, ref_name)) < 0)
/* cannot read loose ref file - gah */;
else if (git__prefixcmp(git_buf_cstr(&ref_file), GIT_SYMREF) == 0) {
const char *target;
*out = git_reference__alloc(ref_name, &oid, NULL);
}
- git_buf_free(&ref_file);
+ git_buf_dispose(&ref_file);
return error;
}
static int ref_error_notfound(const char *name)
{
- giterr_set(GITERR_REFERENCE, "Reference '%s' not found", name);
+ git_error_set(GIT_ERROR_REFERENCE, "reference '%s' not found", name);
return GIT_ENOTFOUND;
}
int error = 0;
struct packref *entry;
- if (packed_reload(backend) < 0)
- return -1;
+ if ((error = packed_reload(backend)) < 0)
+ return error;
if (git_sortedcache_rlock(backend->refcache) < 0)
return -1;
git_refdb_backend *_backend,
const char *ref_name)
{
- refdb_fs_backend *backend = (refdb_fs_backend *)_backend;
+ refdb_fs_backend *backend = GIT_CONTAINER_OF(_backend, refdb_fs_backend, parent);
int error;
assert(backend);
/* only try to lookup this reference on the packfile if it
* wasn't found on the loose refs; not if there was a critical error */
if (error == GIT_ENOTFOUND) {
- giterr_clear();
+ git_error_clear();
error = packed_lookup(out, backend, ref_name);
}
static void refdb_fs_backend__iterator_free(git_reference_iterator *_iter)
{
- refdb_fs_iter *iter = (refdb_fs_iter *) _iter;
+ refdb_fs_iter *iter = GIT_CONTAINER_OF(_iter, refdb_fs_iter, parent);
git_vector_free(&iter->loose);
git_pool_clear(&iter->pool);
git_iterator *fsit = NULL;
git_iterator_options fsit_opts = GIT_ITERATOR_OPTIONS_INIT;
const git_index_entry *entry = NULL;
+ const char *ref_prefix = GIT_REFS_DIR;
+ size_t ref_prefix_len = strlen(ref_prefix);
- if (!backend->path) /* do nothing if no path for loose refs */
+ if (!backend->commonpath) /* do nothing if no commonpath for loose refs */
return 0;
fsit_opts.flags = backend->iterator_flags;
- if ((error = git_buf_printf(&path, "%s/refs", backend->path)) < 0 ||
- (error = git_iterator_for_filesystem(&fsit, path.ptr, &fsit_opts)) < 0) {
- git_buf_free(&path);
+ if (iter->glob) {
+ const char *last_sep = NULL;
+ const char *pos;
+ for (pos = iter->glob; *pos; ++pos) {
+ switch (*pos) {
+ case '?':
+ case '*':
+ case '[':
+ case '\\':
+ break;
+ case '/':
+ last_sep = pos;
+ /* FALLTHROUGH */
+ default:
+ continue;
+ }
+ break;
+ }
+ if (last_sep) {
+ ref_prefix = iter->glob;
+ ref_prefix_len = (last_sep - ref_prefix) + 1;
+ }
+ }
+
+ if ((error = git_buf_printf(&path, "%s/", backend->commonpath)) < 0 ||
+ (error = git_buf_put(&path, ref_prefix, ref_prefix_len)) < 0) {
+ git_buf_dispose(&path);
return error;
}
- error = git_buf_sets(&path, GIT_REFS_DIR);
+ if ((error = git_iterator_for_filesystem(&fsit, path.ptr, &fsit_opts)) < 0) {
+ git_buf_dispose(&path);
+ return (iter->glob && error == GIT_ENOTFOUND)? 0 : error;
+ }
+
+ error = git_buf_sets(&path, ref_prefix);
while (!error && !git_iterator_advance(&entry, fsit)) {
const char *ref_name;
- struct packref *ref;
char *ref_dup;
- git_buf_truncate(&path, strlen(GIT_REFS_DIR));
+ git_buf_truncate(&path, ref_prefix_len);
git_buf_puts(&path, entry->path);
ref_name = git_buf_cstr(&path);
if (git__suffixcmp(ref_name, ".lock") == 0 ||
- (iter->glob && p_fnmatch(iter->glob, ref_name, 0) != 0))
+ (iter->glob && wildmatch(iter->glob, ref_name, 0) != 0))
continue;
- git_sortedcache_rlock(backend->refcache);
- ref = git_sortedcache_lookup(backend->refcache, ref_name);
- if (ref)
- ref->flags |= PACKREF_SHADOWED;
- git_sortedcache_runlock(backend->refcache);
-
ref_dup = git_pool_strdup(&iter->pool, ref_name);
if (!ref_dup)
error = -1;
}
git_iterator_free(fsit);
- git_buf_free(&path);
+ git_buf_dispose(&path);
return error;
}
git_reference **out, git_reference_iterator *_iter)
{
int error = GIT_ITEROVER;
- refdb_fs_iter *iter = (refdb_fs_iter *)_iter;
- refdb_fs_backend *backend = (refdb_fs_backend *)iter->parent.db->backend;
+ refdb_fs_iter *iter = GIT_CONTAINER_OF(_iter, refdb_fs_iter, parent);
+ refdb_fs_backend *backend = GIT_CONTAINER_OF(iter->parent.db->backend, refdb_fs_backend, parent);
struct packref *ref;
while (iter->loose_pos < iter->loose.length) {
const char *path = git_vector_get(&iter->loose, iter->loose_pos++);
- if (loose_lookup(out, backend, path) == 0)
- return 0;
+ if (loose_lookup(out, backend, path) == 0) {
+ ref = git_sortedcache_lookup(iter->cache, path);
+ if (ref)
+ ref->flags |= PACKREF_SHADOWED;
- giterr_clear();
- }
+ return 0;
+ }
- if (!iter->cache) {
- if ((error = git_sortedcache_copy(&iter->cache, backend->refcache, 1, NULL, NULL)) < 0)
- return error;
+ git_error_clear();
}
error = GIT_ITEROVER;
if (ref->flags & PACKREF_SHADOWED)
continue;
- if (iter->glob && p_fnmatch(iter->glob, ref->name, 0) != 0)
+ if (iter->glob && wildmatch(iter->glob, ref->name, 0) != 0)
continue;
*out = git_reference__alloc(ref->name, &ref->oid, &ref->peel);
const char **out, git_reference_iterator *_iter)
{
int error = GIT_ITEROVER;
- refdb_fs_iter *iter = (refdb_fs_iter *)_iter;
- refdb_fs_backend *backend = (refdb_fs_backend *)iter->parent.db->backend;
+ refdb_fs_iter *iter = GIT_CONTAINER_OF(_iter, refdb_fs_iter, parent);
+ refdb_fs_backend *backend = GIT_CONTAINER_OF(iter->parent.db->backend, refdb_fs_backend, parent);
struct packref *ref;
while (iter->loose_pos < iter->loose.length) {
const char *path = git_vector_get(&iter->loose, iter->loose_pos++);
+ struct packref *ref;
if (loose_lookup(NULL, backend, path) == 0) {
+ ref = git_sortedcache_lookup(iter->cache, path);
+ if (ref)
+ ref->flags |= PACKREF_SHADOWED;
+
*out = path;
return 0;
}
- giterr_clear();
- }
-
- if (!iter->cache) {
- if ((error = git_sortedcache_copy(&iter->cache, backend->refcache, 1, NULL, NULL)) < 0)
- return error;
+ git_error_clear();
}
error = GIT_ITEROVER;
if (ref->flags & PACKREF_SHADOWED)
continue;
- if (iter->glob && p_fnmatch(iter->glob, ref->name, 0) != 0)
+ if (iter->glob && wildmatch(iter->glob, ref->name, 0) != 0)
continue;
*out = ref->name;
static int refdb_fs_backend__iterator(
git_reference_iterator **out, git_refdb_backend *_backend, const char *glob)
{
- refdb_fs_iter *iter;
- refdb_fs_backend *backend = (refdb_fs_backend *)_backend;
+ refdb_fs_backend *backend = GIT_CONTAINER_OF(_backend, refdb_fs_backend, parent);
+ refdb_fs_iter *iter = NULL;
+ int error;
assert(backend);
- if (packed_reload(backend) < 0)
- return -1;
-
iter = git__calloc(1, sizeof(refdb_fs_iter));
- GITERR_CHECK_ALLOC(iter);
+ GIT_ERROR_CHECK_ALLOC(iter);
git_pool_init(&iter->pool, 1);
- if (git_vector_init(&iter->loose, 8, NULL) < 0)
- goto fail;
+ if ((error = git_vector_init(&iter->loose, 8, NULL)) < 0)
+ goto out;
if (glob != NULL &&
- (iter->glob = git_pool_strdup(&iter->pool, glob)) == NULL)
- goto fail;
+ (iter->glob = git_pool_strdup(&iter->pool, glob)) == NULL) {
+ error = GIT_ERROR_NOMEMORY;
+ goto out;
+ }
+
+ if ((error = iter_load_loose_paths(backend, iter)) < 0)
+ goto out;
+
+ if ((error = packed_reload(backend)) < 0)
+ goto out;
+
+ if ((error = git_sortedcache_copy(&iter->cache, backend->refcache, 1, NULL, NULL)) < 0)
+ goto out;
iter->parent.next = refdb_fs_backend__iterator_next;
iter->parent.next_name = refdb_fs_backend__iterator_next_name;
iter->parent.free = refdb_fs_backend__iterator_free;
- if (iter_load_loose_paths(backend, iter) < 0)
- goto fail;
-
*out = (git_reference_iterator *)iter;
- return 0;
-
-fail:
- refdb_fs_backend__iterator_free((git_reference_iterator *)iter);
- return -1;
+out:
+ if (error)
+ refdb_fs_backend__iterator_free((git_reference_iterator *)iter);
+ return error;
}
static bool ref_is_available(
int force)
{
size_t i;
+ int error;
- if (packed_reload(backend) < 0)
- return -1;
+ if ((error = packed_reload(backend)) < 0)
+ return error;
if (!force) {
int exists;
- if (refdb_fs_backend__exists(
- &exists, (git_refdb_backend *)backend, new_ref) < 0)
- return -1;
+ if ((error = refdb_fs_backend__exists(
+ &exists, (git_refdb_backend *)backend, new_ref)) < 0) {
+ return error;
+ }
if (exists) {
- giterr_set(GITERR_REFERENCE,
- "Failed to write reference '%s': a reference with "
+ git_error_set(GIT_ERROR_REFERENCE,
+ "failed to write reference '%s': a reference with "
"that name already exists.", new_ref);
return GIT_EEXISTS;
}
if (ref && !ref_is_available(old_ref, new_ref, ref->name)) {
git_sortedcache_runlock(backend->refcache);
- giterr_set(GITERR_REFERENCE,
- "Path to reference '%s' collides with existing one", new_ref);
+ git_error_set(GIT_ERROR_REFERENCE,
+ "path to reference '%s' collides with existing one", new_ref);
return -1;
}
}
static int loose_lock(git_filebuf *file, refdb_fs_backend *backend, const char *name)
{
- int error;
+ int error, filebuf_flags;
git_buf ref_path = GIT_BUF_INIT;
+ const char *basedir;
assert(file && backend && name);
- if (!git_path_isvalid(backend->repo, name, GIT_PATH_REJECT_FILESYSTEM_DEFAULTS)) {
- giterr_set(GITERR_INVALID, "Invalid reference name '%s'.", name);
+ if (!git_path_isvalid(backend->repo, name, 0, GIT_PATH_REJECT_FILESYSTEM_DEFAULTS)) {
+ git_error_set(GIT_ERROR_INVALID, "invalid reference name '%s'", name);
return GIT_EINVALIDSPEC;
}
+ if (is_per_worktree_ref(name))
+ basedir = backend->gitpath;
+ else
+ basedir = backend->commonpath;
+
/* Remove a possibly existing empty directory hierarchy
* which name would collide with the reference name
*/
- if (git_futils_rmdir_r(name, backend->path, GIT_RMDIR_SKIP_NONEMPTY) < 0)
- return -1;
+ if ((error = git_futils_rmdir_r(name, basedir, GIT_RMDIR_SKIP_NONEMPTY)) < 0)
+ return error;
- if (git_buf_joinpath(&ref_path, backend->path, name) < 0)
+ if (git_buf_joinpath(&ref_path, basedir, name) < 0)
return -1;
- error = git_filebuf_open(file, ref_path.ptr, GIT_FILEBUF_FORCE, GIT_REFS_FILE_MODE);
+ filebuf_flags = GIT_FILEBUF_CREATE_LEADING_DIRS;
+ if (backend->fsync)
+ filebuf_flags |= GIT_FILEBUF_FSYNC;
+
+ error = git_filebuf_open(file, ref_path.ptr, filebuf_flags, GIT_REFS_FILE_MODE);
if (error == GIT_EDIRECTORY)
- giterr_set(GITERR_REFERENCE, "cannot lock ref '%s', there are refs beneath that folder", name);
+ git_error_set(GIT_ERROR_REFERENCE, "cannot lock ref '%s', there are refs beneath that folder", name);
- git_buf_free(&ref_path);
+ git_buf_dispose(&ref_path);
return error;
}
{
assert(file && ref);
- if (ref->type == GIT_REF_OID) {
+ if (ref->type == GIT_REFERENCE_DIRECT) {
char oid[GIT_OID_HEXSZ + 1];
git_oid_nfmt(oid, sizeof(oid), &ref->target.oid);
git_filebuf_printf(file, "%s\n", oid);
- } else if (ref->type == GIT_REF_SYMBOLIC) {
+ } else if (ref->type == GIT_REFERENCE_SYMBOLIC) {
git_filebuf_printf(file, GIT_SYMREF "%s\n", ref->target.symbolic);
} else {
assert(0); /* don't let this happen */
{
int error;
git_filebuf *lock;
- refdb_fs_backend *backend = (refdb_fs_backend *) _backend;
+ refdb_fs_backend *backend = GIT_CONTAINER_OF(_backend, refdb_fs_backend, parent);
lock = git__calloc(1, sizeof(git_filebuf));
- GITERR_CHECK_ALLOC(lock);
+ GIT_ERROR_CHECK_ALLOC(lock);
if ((error = loose_lock(lock, backend, refname)) < 0) {
git__free(lock);
const git_reference *ref,
git_filebuf *file,
int update_reflog,
- const git_signature *who,
- const char *message,
const git_oid *old_id,
- const char *old_target);
+ const char *old_target,
+ const git_signature *who,
+ const char *message);
static int refdb_fs_backend__delete_tail(
git_refdb_backend *_backend,
git_filebuf *file,
const char *ref_name,
- const git_oid *old_id, const char *old_target);
+ const git_oid *old_id,
+ const char *old_target);
static int refdb_fs_backend__unlock(git_refdb_backend *backend, void *payload, int success, int update_reflog,
const git_reference *ref, const git_signature *sig, const char *message)
if (success == 2)
error = refdb_fs_backend__delete_tail(backend, lock, ref->name, NULL, NULL);
else if (success)
- error = refdb_fs_backend__write_tail(backend, ref, lock, update_reflog, sig, message, NULL, NULL);
+ error = refdb_fs_backend__write_tail(backend, ref, lock, update_reflog, NULL, NULL, sig, message);
else
git_filebuf_cleanup(lock);
/*
* Find the tagged object in the repository
*/
- if (git_object_lookup(&object, backend->repo, &ref->oid, GIT_OBJ_ANY) < 0)
+ if (git_object_lookup(&object, backend->repo, &ref->oid, GIT_OBJECT_ANY) < 0)
return -1;
/*
* if the ref is actually a 'weak' ref, we don't need to resolve
* anything.
*/
- if (git_object_type(object) == GIT_OBJ_TAG) {
+ if (git_object_type(object) == GIT_OBJECT_TAG) {
git_tag *tag = (git_tag *)object;
/*
static int packed_remove_loose(refdb_fs_backend *backend)
{
size_t i;
- git_buf full_path = GIT_BUF_INIT;
- int failed = 0;
+ git_filebuf lock = GIT_FILEBUF_INIT;
+ git_buf ref_content = GIT_BUF_INIT;
+ int error = 0;
/* backend->refcache is already locked when this is called */
for (i = 0; i < git_sortedcache_entrycount(backend->refcache); ++i) {
struct packref *ref = git_sortedcache_entry(backend->refcache, i);
+ git_oid current_id;
if (!ref || !(ref->flags & PACKREF_WAS_LOOSE))
continue;
- if (git_buf_joinpath(&full_path, backend->path, ref->name) < 0)
- return -1; /* critical; do not try to recover on oom */
+ git_filebuf_cleanup(&lock);
- if (git_path_exists(full_path.ptr) && p_unlink(full_path.ptr) < 0) {
- if (failed)
- continue;
+ /* We need to stop anybody from updating the ref while we try to do a safe delete */
+ error = loose_lock(&lock, backend, ref->name);
+ /* If someone else is updating it, let them do it */
+ if (error == GIT_EEXISTS || error == GIT_ENOTFOUND)
+ continue;
- giterr_set(GITERR_REFERENCE,
- "Failed to remove loose reference '%s' after packing: %s",
- full_path.ptr, strerror(errno));
- failed = 1;
+ if (error < 0) {
+ git_buf_dispose(&ref_content);
+ git_error_set(GIT_ERROR_REFERENCE, "failed to lock loose reference '%s'", ref->name);
+ return error;
}
+ error = git_futils_readbuffer(&ref_content, lock.path_original);
+ /* Someone else beat us to cleaning up the ref, let's simply continue */
+ if (error == GIT_ENOTFOUND)
+ continue;
+
+ /* This became a symref between us packing and trying to delete it, so ignore it */
+ if (!git__prefixcmp(ref_content.ptr, GIT_SYMREF))
+ continue;
+
+ /* Figure out the current id; if we find a bad ref file, skip it so we can do the rest */
+ if (loose_parse_oid(¤t_id, lock.path_original, &ref_content) < 0)
+ continue;
+
+ /* If the ref moved since we packed it, we must not delete it */
+ if (!git_oid_equal(¤t_id, &ref->oid))
+ continue;
+
/*
* if we fail to remove a single file, this is *not* good,
* but we should keep going and remove as many as possible.
- * After we've removed as many files as possible, we return
- * the error code anyway.
+ * If we fail to remove, the ref is still in the old state, so
+ * we haven't lost information.
*/
+ p_unlink(lock.path_original);
}
- git_buf_free(&full_path);
- return failed ? -1 : 0;
+ git_buf_dispose(&ref_content);
+ git_filebuf_cleanup(&lock);
+ return 0;
}
/*
{
git_sortedcache *refcache = backend->refcache;
git_filebuf pack_file = GIT_FILEBUF_INIT;
+ int error, open_flags = 0;
size_t i;
/* lock the cache to updates while we do this */
- if (git_sortedcache_wlock(refcache) < 0)
- return -1;
+ if ((error = git_sortedcache_wlock(refcache)) < 0)
+ return error;
+
+ if (backend->fsync)
+ open_flags = GIT_FILEBUF_FSYNC;
/* Open the file! */
- if (git_filebuf_open(&pack_file, git_sortedcache_path(refcache), 0, GIT_PACKEDREFS_FILE_MODE) < 0)
+ if ((error = git_filebuf_open(&pack_file, git_sortedcache_path(refcache), open_flags, GIT_PACKEDREFS_FILE_MODE)) < 0)
goto fail;
/* Packfiles have a header... apparently
* This is in fact not required, but we might as well print it
* just for kicks */
- if (git_filebuf_printf(&pack_file, "%s\n", GIT_PACKEDREFS_HEADER) < 0)
+ if ((error = git_filebuf_printf(&pack_file, "%s\n", GIT_PACKEDREFS_HEADER)) < 0)
goto fail;
for (i = 0; i < git_sortedcache_entrycount(refcache); ++i) {
struct packref *ref = git_sortedcache_entry(refcache, i);
assert(ref);
- if (packed_find_peel(backend, ref) < 0)
+ if ((error = packed_find_peel(backend, ref)) < 0)
goto fail;
- if (packed_write_ref(ref, &pack_file) < 0)
+ if ((error = packed_write_ref(ref, &pack_file)) < 0)
goto fail;
}
/* if we've written all the references properly, we can commit
* the packfile to make the changes effective */
- if (git_filebuf_commit(&pack_file) < 0)
+ if ((error = git_filebuf_commit(&pack_file)) < 0)
goto fail;
/* when and only when the packfile has been properly written,
* we can go ahead and remove the loose refs */
- if (packed_remove_loose(backend) < 0)
+ if ((error = packed_remove_loose(backend)) < 0)
goto fail;
git_sortedcache_updated(refcache);
git_filebuf_cleanup(&pack_file);
git_sortedcache_wunlock(refcache);
- return -1;
+ return error;
+}
+
+static int packed_delete(refdb_fs_backend *backend, const char *ref_name)
+{
+ size_t pack_pos;
+ int error, found = 0;
+
+ if ((error = packed_reload(backend)) < 0)
+ goto cleanup;
+
+ if ((error = git_sortedcache_wlock(backend->refcache)) < 0)
+ goto cleanup;
+
+ /* If a packed reference exists, remove it from the packfile and repack if necessary */
+ error = git_sortedcache_lookup_index(&pack_pos, backend->refcache, ref_name);
+ if (error == 0) {
+ error = git_sortedcache_remove(backend->refcache, pack_pos);
+ found = 1;
+ }
+ if (error == GIT_ENOTFOUND)
+ error = 0;
+
+ git_sortedcache_wunlock(backend->refcache);
+
+ if (found)
+ error = packed_write(backend);
+
+cleanup:
+ return error;
}
static int reflog_append(refdb_fs_backend *backend, const git_reference *ref, const git_oid *old, const git_oid *new, const git_signature *author, const char *message);
static int has_reflog(git_repository *repo, const char *name);
-/* We only write if it's under heads/, remotes/ or notes/ or if it already has a log */
static int should_write_reflog(int *write, git_repository *repo, const char *name)
{
int error, logall;
- error = git_repository__cvar(&logall, repo, GIT_CVAR_LOGALLREFUPDATES);
+ error = git_repository__configmap_lookup(&logall, repo, GIT_CONFIGMAP_LOGALLREFUPDATES);
if (error < 0)
return error;
if (logall == GIT_LOGALLREFUPDATES_UNSET)
logall = !git_repository_is_bare(repo);
- if (!logall) {
+ *write = 0;
+ switch (logall) {
+ case GIT_LOGALLREFUPDATES_FALSE:
*write = 0;
- } else if (has_reflog(repo, name)) {
- *write = 1;
- } else if (!git__prefixcmp(name, GIT_REFS_HEADS_DIR) ||
- !git__strcmp(name, GIT_HEAD_FILE) ||
- !git__prefixcmp(name, GIT_REFS_REMOTES_DIR) ||
- !git__prefixcmp(name, GIT_REFS_NOTES_DIR)) {
+ break;
+
+ case GIT_LOGALLREFUPDATES_TRUE:
+ /* Only write if it already has a log,
+ * or if it's under heads/, remotes/ or notes/
+ */
+ *write = has_reflog(repo, name) ||
+ !git__prefixcmp(name, GIT_REFS_HEADS_DIR) ||
+ !git__strcmp(name, GIT_HEAD_FILE) ||
+ !git__prefixcmp(name, GIT_REFS_REMOTES_DIR) ||
+ !git__prefixcmp(name, GIT_REFS_NOTES_DIR);
+ break;
+
+ case GIT_LOGALLREFUPDATES_ALWAYS:
*write = 1;
- } else {
- *write = 0;
+ break;
}
return 0;
goto out;
/* If the types don't match, there's no way the values do */
- if (old_id && old_ref->type != GIT_REF_OID) {
+ if (old_id && old_ref->type != GIT_REFERENCE_DIRECT) {
*cmp = -1;
goto out;
}
- if (old_target && old_ref->type != GIT_REF_SYMBOLIC) {
+ if (old_target && old_ref->type != GIT_REFERENCE_SYMBOLIC) {
*cmp = 1;
goto out;
}
- if (old_id && old_ref->type == GIT_REF_OID)
+ if (old_id && old_ref->type == GIT_REFERENCE_DIRECT)
*cmp = git_oid_cmp(old_id, &old_ref->target.oid);
- if (old_target && old_ref->type == GIT_REF_SYMBOLIC)
+ if (old_target && old_ref->type == GIT_REFERENCE_SYMBOLIC)
*cmp = git__strcmp(old_target, old_ref->target.symbolic);
out:
static int maybe_append_head(refdb_fs_backend *backend, const git_reference *ref, const git_signature *who, const char *message)
{
int error;
- git_oid old_id = {{0}};
+ git_oid old_id;
git_reference *tmp = NULL, *head = NULL, *peeled = NULL;
const char *name;
- if (ref->type == GIT_REF_SYMBOLIC)
+ if (ref->type == GIT_REFERENCE_SYMBOLIC)
return 0;
/* if we can't resolve, we use {0}*40 as old id */
- git_reference_name_to_id(&old_id, backend->repo, ref->name);
+ if (git_reference_name_to_id(&old_id, backend->repo, ref->name) < 0)
+ memset(&old_id, 0, sizeof(old_id));
if ((error = git_reference_lookup(&head, backend->repo, GIT_HEAD_FILE)) < 0)
return error;
- if (git_reference_type(head) == GIT_REF_OID)
+ if (git_reference_type(head) == GIT_REFERENCE_DIRECT)
goto cleanup;
if ((error = git_reference_lookup(&tmp, backend->repo, GIT_HEAD_FILE)) < 0)
goto cleanup;
/* Go down the symref chain until we find the branch */
- while (git_reference_type(tmp) == GIT_REF_SYMBOLIC) {
+ while (git_reference_type(tmp) == GIT_REFERENCE_SYMBOLIC) {
error = git_reference_lookup(&peeled, backend->repo, git_reference_symbolic_target(tmp));
if (error < 0)
break;
const git_oid *old_id,
const char *old_target)
{
- refdb_fs_backend *backend = (refdb_fs_backend *)_backend;
+ refdb_fs_backend *backend = GIT_CONTAINER_OF(_backend, refdb_fs_backend, parent);
git_filebuf file = GIT_FILEBUF_INIT;
int error = 0;
assert(backend);
- error = reference_path_available(backend, ref->name, NULL, force);
- if (error < 0)
+ if ((error = reference_path_available(backend, ref->name, NULL, force)) < 0)
return error;
/* We need to perform the reflog append and old value check under the ref's lock */
if ((error = loose_lock(&file, backend, ref->name)) < 0)
return error;
- return refdb_fs_backend__write_tail(_backend, ref, &file, true, who, message, old_id, old_target);
+ return refdb_fs_backend__write_tail(_backend, ref, &file, true, old_id, old_target, who, message);
}
static int refdb_fs_backend__write_tail(
const git_reference *ref,
git_filebuf *file,
int update_reflog,
- const git_signature *who,
- const char *message,
const git_oid *old_id,
- const char *old_target)
+ const char *old_target,
+ const git_signature *who,
+ const char *message)
{
- refdb_fs_backend *backend = (refdb_fs_backend *)_backend;
+ refdb_fs_backend *backend = GIT_CONTAINER_OF(_backend, refdb_fs_backend, parent);
int error = 0, cmp = 0, should_write;
const char *new_target = NULL;
const git_oid *new_id = NULL;
goto on_error;
if (cmp) {
- giterr_set(GITERR_REFERENCE, "old reference value does not match");
+ git_error_set(GIT_ERROR_REFERENCE, "old reference value does not match");
error = GIT_EMODIFIED;
goto on_error;
}
- if (ref->type == GIT_REF_SYMBOLIC)
+ if (ref->type == GIT_REFERENCE_SYMBOLIC)
new_target = ref->target.symbolic;
else
new_id = &ref->target.oid;
return error;
}
+static void refdb_fs_backend__prune_refs(
+ refdb_fs_backend *backend,
+ const char *ref_name,
+ const char *prefix)
+{
+ git_buf relative_path = GIT_BUF_INIT;
+ git_buf base_path = GIT_BUF_INIT;
+ size_t commonlen;
+
+ assert(backend && ref_name);
+
+ if (git_buf_sets(&relative_path, ref_name) < 0)
+ goto cleanup;
+
+ git_path_squash_slashes(&relative_path);
+ if ((commonlen = git_path_common_dirlen("refs/heads/", git_buf_cstr(&relative_path))) == strlen("refs/heads/") ||
+ (commonlen = git_path_common_dirlen("refs/tags/", git_buf_cstr(&relative_path))) == strlen("refs/tags/") ||
+ (commonlen = git_path_common_dirlen("refs/remotes/", git_buf_cstr(&relative_path))) == strlen("refs/remotes/")) {
+
+ git_buf_truncate(&relative_path, commonlen);
+
+ if (prefix) {
+ if (git_buf_join3(&base_path, '/', backend->commonpath, prefix, git_buf_cstr(&relative_path)) < 0)
+ goto cleanup;
+ } else {
+ if (git_buf_joinpath(&base_path, backend->commonpath, git_buf_cstr(&relative_path)) < 0)
+ goto cleanup;
+ }
+
+ git_futils_rmdir_r(ref_name + commonlen, git_buf_cstr(&base_path), GIT_RMDIR_EMPTY_PARENTS | GIT_RMDIR_SKIP_ROOT);
+ }
+
+cleanup:
+ git_buf_dispose(&relative_path);
+ git_buf_dispose(&base_path);
+}
+
static int refdb_fs_backend__delete(
git_refdb_backend *_backend,
const char *ref_name,
const git_oid *old_id, const char *old_target)
{
- refdb_fs_backend *backend = (refdb_fs_backend *)_backend;
+ refdb_fs_backend *backend = GIT_CONTAINER_OF(_backend, refdb_fs_backend, parent);
git_filebuf file = GIT_FILEBUF_INIT;
int error = 0;
return refdb_fs_backend__delete_tail(_backend, &file, ref_name, old_id, old_target);
}
+static int loose_delete(refdb_fs_backend *backend, const char *ref_name)
+{
+ git_buf loose_path = GIT_BUF_INIT;
+ int error = 0;
+
+ if (git_buf_joinpath(&loose_path, backend->commonpath, ref_name) < 0)
+ return -1;
+
+ error = p_unlink(loose_path.ptr);
+ if (error < 0 && errno == ENOENT)
+ error = GIT_ENOTFOUND;
+ else if (error != 0)
+ error = -1;
+
+ git_buf_dispose(&loose_path);
+
+ return error;
+}
+
static int refdb_fs_backend__delete_tail(
git_refdb_backend *_backend,
git_filebuf *file,
const char *ref_name,
const git_oid *old_id, const char *old_target)
{
- refdb_fs_backend *backend = (refdb_fs_backend *)_backend;
- git_buf loose_path = GIT_BUF_INIT;
- size_t pack_pos;
+ refdb_fs_backend *backend = GIT_CONTAINER_OF(_backend, refdb_fs_backend, parent);
int error = 0, cmp = 0;
- bool loose_deleted = 0;
+ bool packed_deleted = 0;
error = cmp_old_ref(&cmp, _backend, ref_name, old_id, old_target);
if (error < 0)
goto cleanup;
if (cmp) {
- giterr_set(GITERR_REFERENCE, "old reference value does not match");
+ git_error_set(GIT_ERROR_REFERENCE, "old reference value does not match");
error = GIT_EMODIFIED;
goto cleanup;
}
- /* If a loose reference exists, remove it from the filesystem */
- if (git_buf_joinpath(&loose_path, backend->path, ref_name) < 0)
- return -1;
-
- if (git_path_isfile(loose_path.ptr)) {
- error = p_unlink(loose_path.ptr);
- loose_deleted = 1;
- }
-
- git_buf_free(&loose_path);
-
- if (error != 0)
+ /*
+ * To ensure that an external observer will see either the current ref value
+ * (because the loose ref still exists), or a missing ref (after the packed-file is
+ * unlocked, there will be nothing left), we must ensure things happen in the
+ * following order:
+ *
+ * - the packed-ref file is locked and loaded, as well as a loose one, if it exists
+ * - we optimistically delete a packed ref, keeping track of whether it existed
+ * - we delete the loose ref, note that we have its .lock
+ * - the loose ref is "unlocked", then the packed-ref file is rewritten and unlocked
+ * - we should prune the path components if a loose ref was deleted
+ *
+ * Note that, because our packed backend doesn't expose its filesystem lock,
+ * we might not be able to guarantee that this is what actually happens (ie.
+ * as our current code never write packed-refs.lock, nothing stops observers
+ * from grabbing a "stale" value from there).
+ */
+ if ((error = packed_delete(backend, ref_name)) < 0 && error != GIT_ENOTFOUND)
goto cleanup;
- if ((error = packed_reload(backend)) < 0)
- goto cleanup;
+ if (error == 0)
+ packed_deleted = 1;
- /* If a packed reference exists, remove it from the packfile and repack */
- if ((error = git_sortedcache_wlock(backend->refcache)) < 0)
+ if ((error = loose_delete(backend, ref_name)) < 0 && error != GIT_ENOTFOUND)
goto cleanup;
- if (!(error = git_sortedcache_lookup_index(
- &pack_pos, backend->refcache, ref_name)))
- error = git_sortedcache_remove(backend->refcache, pack_pos);
-
- git_sortedcache_wunlock(backend->refcache);
-
if (error == GIT_ENOTFOUND) {
- error = loose_deleted ? 0 : ref_error_notfound(ref_name);
+ error = packed_deleted ? 0 : ref_error_notfound(ref_name);
goto cleanup;
}
- error = packed_write(backend);
-
cleanup:
git_filebuf_cleanup(file);
-
+ if (error == 0)
+ refdb_fs_backend__prune_refs(backend, ref_name, "");
return error;
}
const git_signature *who,
const char *message)
{
- refdb_fs_backend *backend = (refdb_fs_backend *)_backend;
- git_reference *old, *new;
+ refdb_fs_backend *backend = GIT_CONTAINER_OF(_backend, refdb_fs_backend, parent);
+ git_reference *old, *new = NULL;
git_filebuf file = GIT_FILEBUF_INIT;
int error;
return error;
}
- new = git_reference__set_name(old, new_name);
+ new = git_reference__realloc(&old, new_name);
if (!new) {
git_reference_free(old);
return -1;
static int refdb_fs_backend__compress(git_refdb_backend *_backend)
{
- refdb_fs_backend *backend = (refdb_fs_backend *)_backend;
+ int error;
+ refdb_fs_backend *backend = GIT_CONTAINER_OF(_backend, refdb_fs_backend, parent);
assert(backend);
- if (packed_reload(backend) < 0 || /* load the existing packfile */
- packed_loadloose(backend) < 0 || /* add all the loose refs */
- packed_write(backend) < 0) /* write back to disk */
- return -1;
+ if ((error = packed_reload(backend)) < 0 || /* load the existing packfile */
+ (error = packed_loadloose(backend)) < 0 || /* add all the loose refs */
+ (error = packed_write(backend)) < 0) /* write back to disk */
+ return error;
return 0;
}
static void refdb_fs_backend__free(git_refdb_backend *_backend)
{
- refdb_fs_backend *backend = (refdb_fs_backend *)_backend;
+ refdb_fs_backend *backend = GIT_CONTAINER_OF(_backend, refdb_fs_backend, parent);
assert(backend);
git_sortedcache_free(backend->refcache);
- git__free(backend->path);
+ git__free(backend->gitpath);
+ git__free(backend->commonpath);
git__free(backend);
}
-static int setup_namespace(git_buf *path, git_repository *repo)
+static char *setup_namespace(git_repository *repo, const char *in)
{
- char *parts, *start, *end;
+ git_buf path = GIT_BUF_INIT;
+ char *parts, *start, *end, *out = NULL;
- /* Not all repositories have a path */
- if (repo->path_repository == NULL)
- return 0;
+ if (!in)
+ goto done;
- /* Load the path to the repo first */
- git_buf_puts(path, repo->path_repository);
+ git_buf_puts(&path, in);
/* if the repo is not namespaced, nothing else to do */
- if (repo->namespace == NULL)
- return 0;
+ if (repo->namespace == NULL) {
+ out = git_buf_detach(&path);
+ goto done;
+ }
parts = end = git__strdup(repo->namespace);
if (parts == NULL)
- return -1;
+ goto done;
/*
* From `man gitnamespaces`:
* of namespaces; for example, GIT_NAMESPACE=foo/bar will store
* refs under refs/namespaces/foo/refs/namespaces/bar/
*/
- while ((start = git__strsep(&end, "/")) != NULL) {
- git_buf_printf(path, "refs/namespaces/%s/", start);
- }
+ while ((start = git__strsep(&end, "/")) != NULL)
+ git_buf_printf(&path, "refs/namespaces/%s/", start);
- git_buf_printf(path, "refs/namespaces/%s/refs", end);
+ git_buf_printf(&path, "refs/namespaces/%s/refs", end);
git__free(parts);
/* Make sure that the folder with the namespace exists */
- if (git_futils_mkdir_relative(git_buf_cstr(path), repo->path_repository,
- 0777, GIT_MKDIR_PATH, NULL) < 0)
- return -1;
+ if (git_futils_mkdir_relative(git_buf_cstr(&path), in, 0777,
+ GIT_MKDIR_PATH, NULL) < 0)
+ goto done;
- /* Return root of the namespaced path, i.e. without the trailing '/refs' */
- git_buf_rtruncate_at_char(path, '/');
- return 0;
+ /* Return root of the namespaced gitpath, i.e. without the trailing '/refs' */
+ git_buf_rtruncate_at_char(&path, '/');
+ out = git_buf_detach(&path);
+
+done:
+ git_buf_dispose(&path);
+ return out;
}
static int reflog_alloc(git_reflog **reflog, const char *name)
*reflog = NULL;
log = git__calloc(1, sizeof(git_reflog));
- GITERR_CHECK_ALLOC(log);
+ GIT_ERROR_CHECK_ALLOC(log);
log->ref_name = git__strdup(name);
- GITERR_CHECK_ALLOC(log->ref_name);
+ GIT_ERROR_CHECK_ALLOC(log->ref_name);
if (git_vector_init(&log->entries, 0, NULL) < 0) {
git__free(log->ref_name);
static int reflog_parse(git_reflog *log, const char *buf, size_t buf_size)
{
- const char *ptr;
- git_reflog_entry *entry;
-
-#define seek_forward(_increase) do { \
- if (_increase >= buf_size) { \
- giterr_set(GITERR_INVALID, "Ran out of data while parsing reflog"); \
- goto fail; \
- } \
- buf += _increase; \
- buf_size -= _increase; \
- } while (0)
+ git_parse_ctx parser = GIT_PARSE_CTX_INIT;
- while (buf_size > GIT_REFLOG_SIZE_MIN) {
- entry = git__calloc(1, sizeof(git_reflog_entry));
- GITERR_CHECK_ALLOC(entry);
+ if ((git_parse_ctx_init(&parser, buf, buf_size)) < 0)
+ return -1;
- entry->committer = git__calloc(1, sizeof(git_signature));
- GITERR_CHECK_ALLOC(entry->committer);
+ for (; parser.remain_len; git_parse_advance_line(&parser)) {
+ git_reflog_entry *entry;
+ const char *sig;
+ char c;
- if (git_oid_fromstrn(&entry->oid_old, buf, GIT_OID_HEXSZ) < 0)
- goto fail;
- seek_forward(GIT_OID_HEXSZ + 1);
+ entry = git__calloc(1, sizeof(*entry));
+ GIT_ERROR_CHECK_ALLOC(entry);
+ entry->committer = git__calloc(1, sizeof(*entry->committer));
+ GIT_ERROR_CHECK_ALLOC(entry->committer);
- if (git_oid_fromstrn(&entry->oid_cur, buf, GIT_OID_HEXSZ) < 0)
- goto fail;
- seek_forward(GIT_OID_HEXSZ + 1);
+ if (git_parse_advance_oid(&entry->oid_old, &parser) < 0 ||
+ git_parse_advance_expected(&parser, " ", 1) < 0 ||
+ git_parse_advance_oid(&entry->oid_cur, &parser) < 0)
+ goto next;
- ptr = buf;
+ sig = parser.line;
+ while (git_parse_peek(&c, &parser, 0) == 0 && c != '\t' && c != '\n')
+ git_parse_advance_chars(&parser, 1);
- /* Seek forward to the end of the signature. */
- while (*buf && *buf != '\t' && *buf != '\n')
- seek_forward(1);
+ if (git_signature__parse(entry->committer, &sig, parser.line, NULL, 0) < 0)
+ goto next;
- if (git_signature__parse(entry->committer, &ptr, buf + 1, NULL, *buf) < 0)
- goto fail;
+ if (c == '\t') {
+ size_t len;
+ git_parse_advance_chars(&parser, 1);
- if (*buf == '\t') {
- /* We got a message. Read everything till we reach LF. */
- seek_forward(1);
- ptr = buf;
+ len = parser.line_len;
+ if (parser.line[len - 1] == '\n')
+ len--;
- while (*buf && *buf != '\n')
- seek_forward(1);
+ entry->msg = git__strndup(parser.line, len);
+ GIT_ERROR_CHECK_ALLOC(entry->msg);
+ }
- entry->msg = git__strndup(ptr, buf - ptr);
- GITERR_CHECK_ALLOC(entry->msg);
- } else
- entry->msg = NULL;
+ if ((git_vector_insert(&log->entries, entry)) < 0) {
+ git_reflog_entry__free(entry);
+ return -1;
+ }
- while (*buf && *buf == '\n' && buf_size > 1)
- seek_forward(1);
+ continue;
- if (git_vector_insert(&log->entries, entry) < 0)
- goto fail;
+next:
+ git_reflog_entry__free(entry);
}
return 0;
-
-#undef seek_forward
-
-fail:
- git_reflog_entry__free(entry);
-
- return -1;
}
static int create_new_reflog_file(const char *filepath)
GIT_INLINE(int) retrieve_reflog_path(git_buf *path, git_repository *repo, const char *name)
{
- return git_buf_join3(path, '/', repo->path_repository, GIT_REFLOG_DIR, name);
+ if (strcmp(name, GIT_HEAD_FILE) == 0)
+ return git_buf_join3(path, '/', repo->gitdir, GIT_REFLOG_DIR, name);
+ return git_buf_join3(path, '/', repo->commondir, GIT_REFLOG_DIR, name);
}
static int refdb_reflog_fs__ensure_log(git_refdb_backend *_backend, const char *name)
assert(_backend && name);
- backend = (refdb_fs_backend *) _backend;
+ backend = GIT_CONTAINER_OF(_backend, refdb_fs_backend, parent);
repo = backend->repo;
if ((error = retrieve_reflog_path(&path, repo, name)) < 0)
return error;
error = create_new_reflog_file(git_buf_cstr(&path));
- git_buf_free(&path);
+ git_buf_dispose(&path);
return error;
}
ret = git_path_isfile(git_buf_cstr(&path));
cleanup:
- git_buf_free(&path);
+ git_buf_dispose(&path);
return ret;
}
assert(_backend && name);
- backend = (refdb_fs_backend *) _backend;
+ backend = GIT_CONTAINER_OF(_backend, refdb_fs_backend, parent);
return has_reflog(backend->repo, name);
}
assert(out && _backend && name);
- backend = (refdb_fs_backend *) _backend;
+ backend = GIT_CONTAINER_OF(_backend, refdb_fs_backend, parent);
repo = backend->repo;
if (reflog_alloc(&log, name) < 0)
if ((error == GIT_ENOTFOUND) &&
((error = create_new_reflog_file(git_buf_cstr(&log_path))) < 0))
goto cleanup;
-
+
if ((error = reflog_parse(log,
git_buf_cstr(&log_file), git_buf_len(&log_file))) < 0)
goto cleanup;
git_reflog_free(log);
success:
- git_buf_free(&log_file);
- git_buf_free(&log_path);
+ git_buf_dispose(&log_file);
+ git_buf_dispose(&log_path);
return error;
}
git_buf_rtrim(buf);
if (msg) {
+ size_t i;
+
git_buf_putc(buf, '\t');
git_buf_puts(buf, msg);
+
+ for (i = 0; i < buf->size - 2; i++)
+ if (buf->ptr[i] == '\n')
+ buf->ptr[i] = ' ';
+ git_buf_rtrim(buf);
}
git_buf_putc(buf, '\n');
repo = backend->repo;
- if (!git_path_isvalid(backend->repo, refname, GIT_PATH_REJECT_FILESYSTEM_DEFAULTS)) {
- giterr_set(GITERR_INVALID, "Invalid reference name '%s'.", refname);
+ if (!git_path_isvalid(backend->repo, refname, 0, GIT_PATH_REJECT_FILESYSTEM_DEFAULTS)) {
+ git_error_set(GIT_ERROR_INVALID, "invalid reference name '%s'", refname);
return GIT_EINVALIDSPEC;
}
return -1;
if (!git_path_isfile(git_buf_cstr(&log_path))) {
- giterr_set(GITERR_INVALID,
- "Log file for reference '%s' doesn't exist.", refname);
+ git_error_set(GIT_ERROR_INVALID,
+ "log file for reference '%s' doesn't exist", refname);
error = -1;
goto cleanup;
}
error = git_filebuf_open(file, git_buf_cstr(&log_path), 0, GIT_REFLOG_FILE_MODE);
cleanup:
- git_buf_free(&log_path);
+ git_buf_dispose(&log_path);
return error;
}
assert(_backend && reflog);
- backend = (refdb_fs_backend *) _backend;
+ backend = GIT_CONTAINER_OF(_backend, refdb_fs_backend, parent);
if ((error = lock_reflog(&fbuf, backend, reflog->ref_name)) < 0)
return -1;
git_filebuf_cleanup(&fbuf);
success:
- git_buf_free(&log);
+ git_buf_dispose(&log);
return error;
}
/* Append to the reflog, must be called under reference lock */
static int reflog_append(refdb_fs_backend *backend, const git_reference *ref, const git_oid *old, const git_oid *new, const git_signature *who, const char *message)
{
- int error, is_symbolic;
+ int error, is_symbolic, open_flags;
git_oid old_id = {{0}}, new_id = {{0}};
git_buf buf = GIT_BUF_INIT, path = GIT_BUF_INIT;
git_repository *repo = backend->repo;
- is_symbolic = ref->type == GIT_REF_SYMBOLIC;
+ is_symbolic = ref->type == GIT_REFERENCE_SYMBOLIC;
/* "normal" symbolic updates do not write */
if (is_symbolic &&
!(old && new))
return 0;
- /* From here on is_symoblic also means that it's HEAD */
+ /* From here on is_symbolic also means that it's HEAD */
if (old) {
git_oid_cpy(&old_id, old);
if (error == GIT_ENOTFOUND)
return 0;
- giterr_clear();
+ git_error_clear();
}
}
* there maybe an obsolete/unused directory (or directory hierarchy) in the way.
*/
if (git_path_isdir(git_buf_cstr(&path))) {
- if ((git_futils_rmdir_r(git_buf_cstr(&path), NULL, GIT_RMDIR_SKIP_NONEMPTY) < 0))
- error = -1;
- else if (git_path_isdir(git_buf_cstr(&path))) {
- giterr_set(GITERR_REFERENCE, "cannot create reflog at '%s', there are reflogs beneath that folder",
+ if ((error = git_futils_rmdir_r(git_buf_cstr(&path), NULL, GIT_RMDIR_SKIP_NONEMPTY)) < 0) {
+ if (error == GIT_ENOTFOUND)
+ error = 0;
+ } else if (git_path_isdir(git_buf_cstr(&path))) {
+ git_error_set(GIT_ERROR_REFERENCE, "cannot create reflog at '%s', there are reflogs beneath that folder",
ref->name);
error = GIT_EDIRECTORY;
}
goto cleanup;
}
- error = git_futils_writebuffer(&buf, git_buf_cstr(&path), O_WRONLY|O_CREAT|O_APPEND, GIT_REFLOG_FILE_MODE);
+ open_flags = O_WRONLY | O_CREAT | O_APPEND;
+
+ if (backend->fsync)
+ open_flags |= O_FSYNC;
+
+ error = git_futils_writebuffer(&buf, git_buf_cstr(&path), open_flags, GIT_REFLOG_FILE_MODE);
cleanup:
- git_buf_free(&buf);
- git_buf_free(&path);
+ git_buf_dispose(&buf);
+ git_buf_dispose(&path);
return error;
}
assert(_backend && old_name && new_name);
- backend = (refdb_fs_backend *) _backend;
+ backend = GIT_CONTAINER_OF(_backend, refdb_fs_backend, parent);
repo = backend->repo;
if ((error = git_reference__normalize_name(
- &normalized, new_name, GIT_REF_FORMAT_ALLOW_ONELEVEL)) < 0)
+ &normalized, new_name, GIT_REFERENCE_FORMAT_ALLOW_ONELEVEL)) < 0)
return error;
- if (git_buf_joinpath(&temp_path, repo->path_repository, GIT_REFLOG_DIR) < 0)
+ if (git_buf_joinpath(&temp_path, repo->gitdir, GIT_REFLOG_DIR) < 0)
return -1;
if (git_buf_joinpath(&old_path, git_buf_cstr(&temp_path), old_name) < 0)
p_close(fd);
if (p_rename(git_buf_cstr(&old_path), git_buf_cstr(&temp_path)) < 0) {
- giterr_set(GITERR_OS, "Failed to rename reflog for %s", new_name);
+ git_error_set(GIT_ERROR_OS, "failed to rename reflog for %s", new_name);
error = -1;
goto cleanup;
}
- if (git_path_isdir(git_buf_cstr(&new_path)) &&
+ if (git_path_isdir(git_buf_cstr(&new_path)) &&
(git_futils_rmdir_r(git_buf_cstr(&new_path), NULL, GIT_RMDIR_SKIP_NONEMPTY) < 0)) {
error = -1;
goto cleanup;
}
if (p_rename(git_buf_cstr(&temp_path), git_buf_cstr(&new_path)) < 0) {
- giterr_set(GITERR_OS, "Failed to rename reflog for %s", new_name);
+ git_error_set(GIT_ERROR_OS, "failed to rename reflog for %s", new_name);
error = -1;
}
cleanup:
- git_buf_free(&temp_path);
- git_buf_free(&old_path);
- git_buf_free(&new_path);
- git_buf_free(&normalized);
+ git_buf_dispose(&temp_path);
+ git_buf_dispose(&old_path);
+ git_buf_dispose(&new_path);
+ git_buf_dispose(&normalized);
return error;
}
static int refdb_reflog_fs__delete(git_refdb_backend *_backend, const char *name)
{
- int error;
+ refdb_fs_backend *backend = GIT_CONTAINER_OF(_backend, refdb_fs_backend, parent);
git_buf path = GIT_BUF_INIT;
-
- git_repository *repo;
- refdb_fs_backend *backend;
+ int error;
assert(_backend && name);
- backend = (refdb_fs_backend *) _backend;
- repo = backend->repo;
+ if ((error = retrieve_reflog_path(&path, backend->repo, name)) < 0)
+ goto out;
- error = retrieve_reflog_path(&path, repo, name);
+ if (!git_path_exists(path.ptr))
+ goto out;
- if (!error && git_path_exists(path.ptr))
- error = p_unlink(path.ptr);
+ if ((error = p_unlink(path.ptr)) < 0)
+ goto out;
- git_buf_free(&path);
+ refdb_fs_backend__prune_refs(backend, name, GIT_REFLOG_DIR);
- return error;
+out:
+ git_buf_dispose(&path);
+ return error;
}
int git_refdb_backend_fs(
git_repository *repository)
{
int t = 0;
- git_buf path = GIT_BUF_INIT;
+ git_buf gitpath = GIT_BUF_INIT;
refdb_fs_backend *backend;
backend = git__calloc(1, sizeof(refdb_fs_backend));
- GITERR_CHECK_ALLOC(backend);
+ GIT_ERROR_CHECK_ALLOC(backend);
+
+ if (git_refdb_init_backend(&backend->parent, GIT_REFDB_BACKEND_VERSION) < 0)
+ goto fail;
backend->repo = repository;
- if (setup_namespace(&path, repository) < 0)
- goto fail;
+ if (repository->gitdir) {
+ backend->gitpath = setup_namespace(repository, repository->gitdir);
+
+ if (backend->gitpath == NULL)
+ goto fail;
+ }
+
+ if (repository->commondir) {
+ backend->commonpath = setup_namespace(repository, repository->commondir);
- backend->path = git_buf_detach(&path);
+ if (backend->commonpath == NULL)
+ goto fail;
+ }
- if (git_buf_joinpath(&path, backend->path, GIT_PACKEDREFS_FILE) < 0 ||
+ if (git_buf_joinpath(&gitpath, backend->commonpath, GIT_PACKEDREFS_FILE) < 0 ||
git_sortedcache_new(
&backend->refcache, offsetof(struct packref, name),
- NULL, NULL, packref_cmp, git_buf_cstr(&path)) < 0)
+ NULL, NULL, packref_cmp, git_buf_cstr(&gitpath)) < 0)
goto fail;
- git_buf_free(&path);
+ git_buf_dispose(&gitpath);
- if (!git_repository__cvar(&t, backend->repo, GIT_CVAR_IGNORECASE) && t) {
+ if (!git_repository__configmap_lookup(&t, backend->repo, GIT_CONFIGMAP_IGNORECASE) && t) {
backend->iterator_flags |= GIT_ITERATOR_IGNORE_CASE;
backend->direach_flags |= GIT_PATH_DIR_IGNORE_CASE;
}
- if (!git_repository__cvar(&t, backend->repo, GIT_CVAR_PRECOMPOSE) && t) {
+ if (!git_repository__configmap_lookup(&t, backend->repo, GIT_CONFIGMAP_PRECOMPOSE) && t) {
backend->iterator_flags |= GIT_ITERATOR_PRECOMPOSE_UNICODE;
backend->direach_flags |= GIT_PATH_DIR_PRECOMPOSE_UNICODE;
}
+ if ((!git_repository__configmap_lookup(&t, backend->repo, GIT_CONFIGMAP_FSYNCOBJECTFILES) && t) ||
+ git_repository__fsync_gitdir)
+ backend->fsync = 1;
+ backend->iterator_flags |= GIT_ITERATOR_DESCEND_SYMLINKS;
backend->parent.exists = &refdb_fs_backend__exists;
backend->parent.lookup = &refdb_fs_backend__lookup;
return 0;
fail:
- git_buf_free(&path);
- git__free(backend->path);
+ git_buf_dispose(&gitpath);
+ git__free(backend->gitpath);
+ git__free(backend->commonpath);
git__free(backend);
return -1;
}