static int loose_backend__foreach(git_odb_backend *_backend, git_odb_foreach_cb cb, void *data)
{
char *objects_dir;
int error;
git_buf buf = GIT_BUF_INIT;
struct foreach_state state;
loose_backend *backend = (loose_backend *) _backend;
assert(backend && cb);
objects_dir = backend->objects_dir;
git_buf_sets(&buf, objects_dir);
git_path_to_dir(&buf);
if (git_buf_oom(&buf))
return -1;
memset(&state, 0, sizeof(state));
state.cb = cb;
state.data = data;
state.dir_len = git_buf_len(&buf);
error = git_path_direach(&buf, 0, foreach_cb, &state);
git_buf_dispose(&buf);
return error;
}
int git_path_find_dir(git_buf *dir, const char *path, const char *base)
{
int error = GIT_SUCCESS;
if (base != NULL && git_path_root(path) < 0)
error = git_buf_joinpath(dir, base, path);
else
error = git_buf_sets(dir, path);
if (error == GIT_SUCCESS) {
char buf[GIT_PATH_MAX];
if (p_realpath(dir->ptr, buf) != NULL)
error = git_buf_sets(dir, buf);
}
/* call dirname if this is not a directory */
if (error == GIT_SUCCESS && git_path_isdir(dir->ptr) != GIT_SUCCESS)
if (git_path_dirname_r(dir, dir->ptr) < GIT_SUCCESS)
error = git_buf_lasterror(dir);
if (error == GIT_SUCCESS)
error = git_path_to_dir(dir);
return error;
}
const char *cl_git_sandbox_path(int is_dir, ...)
{
const char *path = NULL;
static char _temp[GIT_PATH_MAX];
git_buf buf = GIT_BUF_INIT;
va_list arg;
cl_git_pass(git_buf_sets(&buf, clar_sandbox_path()));
va_start(arg, is_dir);
while ((path = va_arg(arg, const char *)) != NULL) {
cl_git_pass(git_buf_joinpath(&buf, buf.ptr, path));
}
va_end(arg);
cl_git_pass(git_path_prettify(&buf, buf.ptr, NULL));
if (is_dir)
git_path_to_dir(&buf);
/* make sure we won't truncate */
cl_assert(git_buf_len(&buf) < sizeof(_temp));
git_buf_copy_cstr(_temp, sizeof(_temp), &buf);
git_buf_dispose(&buf);
return _temp;
}
static int load_workdir(git_repository *repo, git_config *config, git_buf *parent_path)
{
int error;
const git_config_entry *ce;
git_buf worktree = GIT_BUF_INIT;
if (repo->is_bare)
return 0;
if ((error = git_config__lookup_entry(
&ce, config, "core.worktree", false)) < 0)
return error;
if (ce && ce->value) {
if ((error = git_path_prettify_dir(
&worktree, ce->value, repo->path_repository)) < 0)
return error;
repo->workdir = git_buf_detach(&worktree);
}
else if (parent_path && git_path_isdir(parent_path->ptr))
repo->workdir = git_buf_detach(parent_path);
else {
if (git_path_dirname_r(&worktree, repo->path_repository) < 0 ||
git_path_to_dir(&worktree) < 0)
return -1;
repo->workdir = git_buf_detach(&worktree);
}
GITERR_CHECK_ALLOC(repo->workdir);
return 0;
}
static int load_workdir(git_repository *repo, git_buf *parent_path)
{
int error;
git_config *config;
const char *worktree;
git_buf worktree_buf = GIT_BUF_INIT;
if (repo->is_bare)
return 0;
if (git_repository_config__weakptr(&config, repo) < 0)
return -1;
error = git_config_get_string(&worktree, config, "core.worktree");
if (!error && worktree != NULL)
repo->workdir = git__strdup(worktree);
else if (error != GIT_ENOTFOUND)
return error;
else {
giterr_clear();
if (parent_path && git_path_isdir(parent_path->ptr))
repo->workdir = git_buf_detach(parent_path);
else {
git_path_dirname_r(&worktree_buf, repo->path_repository);
git_path_to_dir(&worktree_buf);
repo->workdir = git_buf_detach(&worktree_buf);
}
}
GITERR_CHECK_ALLOC(repo->workdir);
return 0;
}
int git_path_prettify_dir(git_buf *path_out, const char *path, const char *base)
{
int error = git_path_prettify(path_out, path, base);
if (error == GIT_SUCCESS)
error = git_path_to_dir(path_out);
return error;
}
int git_path_direach(
git_buf *path,
int (*fn)(void *, git_buf *),
void *arg)
{
ssize_t wd_len;
DIR *dir;
struct dirent *de, *de_buf;
if (git_path_to_dir(path) < 0)
return -1;
wd_len = git_buf_len(path);
if ((dir = opendir(path->ptr)) == NULL) {
giterr_set(GITERR_OS, "Failed to open directory '%s'", path->ptr);
return -1;
}
#ifdef __sun
de_buf = git__malloc(sizeof(struct dirent) + FILENAME_MAX + 1);
#else
de_buf = git__malloc(sizeof(struct dirent));
#endif
while (p_readdir_r(dir, de_buf, &de) == 0 && de != NULL) {
int result;
if (is_dot_or_dotdot(de->d_name))
continue;
if (git_buf_puts(path, de->d_name) < 0) {
closedir(dir);
git__free(de_buf);
return -1;
}
result = fn(arg, path);
git_buf_truncate(path, wd_len); /* restore path */
if (result < 0) {
closedir(dir);
git__free(de_buf);
return -1;
}
}
closedir(dir);
git__free(de_buf);
return 0;
}
static void
check_path_to_dir(
const char* path,
const char* expected)
{
git_buf tgt = GIT_BUF_INIT;
git_buf_sets(&tgt, path);
cl_git_pass(git_path_to_dir(&tgt));
cl_assert_equal_s(expected, tgt.ptr);
git_buf_dispose(&tgt);
}
int git_path_find_dir(git_buf *dir, const char *path, const char *base)
{
int error = git_path_join_unrooted(dir, path, base, NULL);
if (!error) {
char buf[GIT_PATH_MAX];
if (p_realpath(dir->ptr, buf) != NULL)
error = git_buf_sets(dir, buf);
}
/* call dirname if this is not a directory */
if (!error) /* && git_path_isdir(dir->ptr) == false) */
error = (git_path_dirname_r(dir, dir->ptr) < 0) ? -1 : 0;
if (!error)
error = git_path_to_dir(dir);
return error;
}
static int object_file_name(
git_buf *name, const loose_backend *be, const git_oid *id)
{
size_t alloclen;
/* expand length for object root + 40 hex sha1 chars + 2 * '/' + '\0' */
GITERR_CHECK_ALLOC_ADD(&alloclen, be->objects_dirlen, GIT_OID_HEXSZ);
GITERR_CHECK_ALLOC_ADD(&alloclen, alloclen, 3);
if (git_buf_grow(name, alloclen) < 0)
return -1;
git_buf_set(name, be->objects_dir, be->objects_dirlen);
git_path_to_dir(name);
/* loose object filename: aa/aaa... (41 bytes) */
git_oid_pathfmt(name->ptr + name->size, id);
name->size += GIT_OID_HEXSZ + 1;
name->ptr[name->size] = '\0';
return 0;
}
int git_path_direach(
git_buf *path,
int (*fn)(void *, git_buf *),
void *arg)
{
ssize_t wd_len;
DIR *dir;
struct dirent *de;
if (git_path_to_dir(path) < GIT_SUCCESS)
return git_buf_lasterror(path);
wd_len = path->size;
dir = opendir(path->ptr);
if (!dir)
return git__throw(GIT_EOSERR, "Failed to process `%s` tree structure. An error occured while opening the directory", path->ptr);
while ((de = readdir(dir)) != NULL) {
int result;
if (is_dot_or_dotdot(de->d_name))
continue;
if (git_buf_puts(path, de->d_name) < GIT_SUCCESS)
return git_buf_lasterror(path);
result = fn(arg, path);
git_buf_truncate(path, wd_len); /* restore path */
if (result != GIT_SUCCESS) {
closedir(dir);
return result; /* The callee is reponsible for setting the correct error message */
}
}
closedir(dir);
return GIT_SUCCESS;
}
int git_path_prettify_dir(git_buf *path_out, const char *path, const char *base)
{
int error = git_path_prettify(path_out, path, base);
return (error < 0) ? error : git_path_to_dir(path_out);
}
int git_path_direach(
git_buf *path,
uint32_t flags,
int (*fn)(void *, git_buf *),
void *arg)
{
int error = 0;
ssize_t wd_len;
DIR *dir;
struct dirent *de;
#ifdef GIT_USE_ICONV
git_path_iconv_t ic = GIT_PATH_ICONV_INIT;
#endif
GIT_UNUSED(flags);
if (git_path_to_dir(path) < 0)
return -1;
wd_len = git_buf_len(path);
if ((dir = opendir(path->ptr)) == NULL) {
giterr_set(GITERR_OS, "Failed to open directory '%s'", path->ptr);
if (errno == ENOENT)
return GIT_ENOTFOUND;
return -1;
}
#ifdef GIT_USE_ICONV
if ((flags & GIT_PATH_DIR_PRECOMPOSE_UNICODE) != 0)
(void)git_path_iconv_init_precompose(&ic);
#endif
while ((de = readdir(dir)) != NULL) {
char *de_path = de->d_name;
size_t de_len = strlen(de_path);
if (git_path_is_dot_or_dotdot(de_path))
continue;
#ifdef GIT_USE_ICONV
if ((error = git_path_iconv(&ic, &de_path, &de_len)) < 0)
break;
#endif
if ((error = git_buf_put(path, de_path, de_len)) < 0)
break;
giterr_clear();
error = fn(arg, path);
git_buf_truncate(path, wd_len); /* restore path */
/* Only set our own error if the callback did not set one already */
if (error != 0) {
if (!giterr_last())
giterr_set_after_callback(error);
break;
}
}
closedir(dir);
#ifdef GIT_USE_ICONV
git_path_iconv_clear(&ic);
#endif
return error;
}
/* Locate an object matching a given short oid */
static int locate_object_short_oid(
git_buf *object_location,
git_oid *res_oid,
loose_backend *backend,
const git_oid *short_oid,
size_t len)
{
char *objects_dir = backend->objects_dir;
size_t dir_len = strlen(objects_dir), alloc_len;
loose_locate_object_state state;
int error;
/* prealloc memory for OBJ_DIR/xx/xx..38x..xx */
GITERR_CHECK_ALLOC_ADD(&alloc_len, dir_len, GIT_OID_HEXSZ);
GITERR_CHECK_ALLOC_ADD(&alloc_len, alloc_len, 3);
if (git_buf_grow(object_location, alloc_len) < 0)
return -1;
git_buf_set(object_location, objects_dir, dir_len);
git_path_to_dir(object_location);
/* save adjusted position at end of dir so it can be restored later */
dir_len = git_buf_len(object_location);
/* Convert raw oid to hex formatted oid */
git_oid_fmt((char *)state.short_oid, short_oid);
/* Explore OBJ_DIR/xx/ where xx is the beginning of hex formatted short oid */
if (git_buf_put(object_location, (char *)state.short_oid, 3) < 0)
return -1;
object_location->ptr[object_location->size - 1] = '/';
/* Check that directory exists */
if (git_path_isdir(object_location->ptr) == false)
return git_odb__error_notfound("no matching loose object for prefix",
short_oid, len);
state.dir_len = git_buf_len(object_location);
state.short_oid_len = len;
state.found = 0;
/* Explore directory to find a unique object matching short_oid */
error = git_path_direach(
object_location, 0, fn_locate_object_short_oid, &state);
if (error < 0 && error != GIT_EAMBIGUOUS)
return error;
if (!state.found)
return git_odb__error_notfound("no matching loose object for prefix",
short_oid, len);
if (state.found > 1)
return git_odb__error_ambiguous("multiple matches in loose objects");
/* Convert obtained hex formatted oid to raw */
error = git_oid_fromstr(res_oid, (char *)state.res_oid);
if (error)
return error;
/* Update the location according to the oid obtained */
GITERR_CHECK_ALLOC_ADD(&alloc_len, dir_len, GIT_OID_HEXSZ);
GITERR_CHECK_ALLOC_ADD(&alloc_len, alloc_len, 2);
git_buf_truncate(object_location, dir_len);
if (git_buf_grow(object_location, alloc_len) < 0)
return -1;
git_oid_pathfmt(object_location->ptr + dir_len, res_oid);
object_location->size += GIT_OID_HEXSZ + 1;
object_location->ptr[object_location->size] = '\0';
return 0;
}
static int find_repo(
git_buf *repo_path,
git_buf *parent_path,
const char *start_path,
uint32_t flags,
const char *ceiling_dirs)
{
int error;
git_buf path = GIT_BUF_INIT;
struct stat st;
dev_t initial_device = 0;
bool try_with_dot_git = ((flags & GIT_REPOSITORY_OPEN_BARE) != 0);
int ceiling_offset;
git_buf_free(repo_path);
if ((error = git_path_prettify(&path, start_path, NULL)) < 0)
return error;
ceiling_offset = find_ceiling_dir_offset(path.ptr, ceiling_dirs);
if (!try_with_dot_git &&
(error = git_buf_joinpath(&path, path.ptr, DOT_GIT)) < 0)
return error;
while (!error && !git_buf_len(repo_path)) {
if (p_stat(path.ptr, &st) == 0) {
/* check that we have not crossed device boundaries */
if (initial_device == 0)
initial_device = st.st_dev;
else if (st.st_dev != initial_device &&
(flags & GIT_REPOSITORY_OPEN_CROSS_FS) == 0)
break;
if (S_ISDIR(st.st_mode)) {
if (valid_repository_path(&path)) {
git_path_to_dir(&path);
git_buf_set(repo_path, path.ptr, path.size);
break;
}
}
else if (S_ISREG(st.st_mode)) {
git_buf repo_link = GIT_BUF_INIT;
if (!(error = read_gitfile(&repo_link, path.ptr))) {
if (valid_repository_path(&repo_link))
git_buf_swap(repo_path, &repo_link);
git_buf_free(&repo_link);
break;
}
git_buf_free(&repo_link);
}
}
/* move up one directory level */
if (git_path_dirname_r(&path, path.ptr) < 0) {
error = -1;
break;
}
if (try_with_dot_git) {
/* if we tried original dir with and without .git AND either hit
* directory ceiling or NO_SEARCH was requested, then be done.
*/
if (path.ptr[ceiling_offset] == '\0' ||
(flags & GIT_REPOSITORY_OPEN_NO_SEARCH) != 0)
break;
/* otherwise look first for .git item */
error = git_buf_joinpath(&path, path.ptr, DOT_GIT);
}
try_with_dot_git = !try_with_dot_git;
}
if (!error && parent_path && !(flags & GIT_REPOSITORY_OPEN_BARE)) {
if (!git_buf_len(repo_path))
git_buf_clear(parent_path);
else {
git_path_dirname_r(parent_path, path.ptr);
git_path_to_dir(parent_path);
}
if (git_buf_oom(parent_path))
return -1;
}
git_buf_free(&path);
if (!git_buf_len(repo_path) && !error) {
giterr_set(GITERR_REPOSITORY,
"Could not find repository from '%s'", start_path);
error = GIT_ENOTFOUND;
}
return error;
}
