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Commit e0011be3 by Vicent Marti
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Fix the opening of empty repositories 

We were checking for the index file, which is not assured to exist on
clean git repositories.

Signed-off-by: Vicent Marti <tanoku@gmail.com>
parent 45314a7e
Showing with 71 additions and 51 deletions
src/repository.c
......@@ -68,12 +68,12 @@ uint32_t object_table_hash(const void *key, int hash_id)
*
* Open a repository object from its path
*/
static int assign_repository_DIRs(git_repository *repo,
static int assign_repository_dirs(
git_repository *repo,
const char *git_dir,
const char *git_object_directory,
const char *git_index_file,
const char *git_work_tree,
int is_repo_being_created)
const char *git_work_tree)
{
char path_aux[GIT_PATH_MAX];
size_t git_dir_path_len;
......@@ -104,22 +104,11 @@ static int assign_repository_DIRs(git_repository *repo,
return error;
}
/* Ensure GIT_OBJECT_DIRECTORY exists */
if (gitfo_isdir(path_aux) < GIT_SUCCESS)
return GIT_ENOTFOUND;
/* Store GIT_OBJECT_DIRECTORY */
repo->path_odb = git__strdup(path_aux);
if (repo->path_odb == NULL)
return GIT_ENOMEM;
if (!is_repo_being_created) {
/* Ensure HEAD file exists */
git__joinpath(path_aux, repo->path_repository, GIT_HEAD_FILE);
if (gitfo_exists(path_aux) < 0)
return GIT_ENOTAREPO;
}
/* path to GIT_WORK_TREE */
if (git_work_tree == NULL)
repo->is_bare = 1;
......@@ -142,12 +131,6 @@ static int assign_repository_DIRs(git_repository *repo,
return error;
}
if (!is_repo_being_created) {
/* Ensure GIT_INDEX_FILE exists */
if (gitfo_exists(path_aux) < 0)
return GIT_ENOTAREPO;
}
/* store GIT_INDEX_FILE */
repo->path_index = git__strdup(path_aux);
if (repo->path_index == NULL)
......@@ -157,32 +140,42 @@ static int assign_repository_DIRs(git_repository *repo,
return GIT_SUCCESS;
}
static int guess_repository_DIRs(git_repository *repo, const char *repository_path, int is_repo_being_created)
static int check_repository_dirs(git_repository *repo)
{
char path_odb[GIT_PATH_MAX] = "\0", path_index[GIT_PATH_MAX] = "\0", path_work_tree[GIT_PATH_MAX] = "\0";
char dir_name[MAX_GITDIR_TREE_STRUCTURE_PATH_LENGTH];
char path_aux[GIT_PATH_MAX];
int error = GIT_SUCCESS;
if (gitfo_isdir(repo->path_repository) < GIT_SUCCESS)
return GIT_ENOTAREPO;
/* Path to objects database */
git__joinpath(path_odb, repository_path, GIT_OBJECTS_DIR);
/* Ensure GIT_OBJECT_DIRECTORY exists */
if (gitfo_isdir(repo->path_odb) < GIT_SUCCESS)
return GIT_ENOTAREPO;
/* Ensure HEAD file exists */
git__joinpath(path_aux, repo->path_repository, GIT_HEAD_FILE);
if (gitfo_exists(path_aux) < 0)
return GIT_ENOTAREPO;
return GIT_SUCCESS;
}
static int guess_repository_dirs(git_repository *repo, const char *repository_path)
{
char buffer[GIT_PATH_MAX];
const char *path_work_tree = NULL;
/* Git directory name */
if (git__basename_r(dir_name, sizeof(dir_name), repository_path) < 0)
if (git__basename_r(buffer, sizeof(buffer), repository_path) < 0)
return GIT_EINVALIDPATH;
if (strcmp(dir_name, DOT_GIT) == 0) {
/* Path to index file */
git__joinpath(path_index, repository_path, GIT_INDEX_FILE);
if (strcmp(buffer, DOT_GIT) == 0) {
/* Path to working dir */
if (git__dirname_r(path_work_tree, sizeof(path_work_tree), repository_path) < 0)
if (git__dirname_r(buffer, sizeof(buffer), repository_path) < 0)
return GIT_EINVALIDPATH;
path_work_tree = buffer;
}
error = assign_repository_DIRs(repo, repository_path, path_odb, !*path_index ? NULL : path_index, !*path_work_tree ? NULL : path_work_tree, is_repo_being_created);
return error;
return assign_repository_dirs(repo, repository_path, NULL, NULL, path_work_tree);
}
static git_repository *repository_alloc()
......@@ -243,16 +236,19 @@ int git_repository_open3(git_repository **repo_out,
if (repo == NULL)
return GIT_ENOMEM;
error = assign_repository_DIRs(repo,
error = assign_repository_dirs(repo,
git_dir,
NULL,
git_index_file,
git_work_tree,
0);
git_work_tree);
if (error < GIT_SUCCESS)
goto cleanup;
error = check_repository_dirs(repo);
if (error < GIT_SUCCESS)
goto cleanup;
repo->db = object_database;
*repo_out = repo;
......@@ -279,13 +275,16 @@ int git_repository_open2(git_repository **repo_out,
if (repo == NULL)
return GIT_ENOMEM;
error = assign_repository_DIRs(repo,
error = assign_repository_dirs(repo,
git_dir,
git_object_directory,
git_index_file,
git_work_tree,
0);
git_work_tree);
if (error < GIT_SUCCESS)
goto cleanup;
error = check_repository_dirs(repo);
if (error < GIT_SUCCESS)
goto cleanup;
......@@ -301,7 +300,7 @@ cleanup:
return error;
}
static int repository_open_internal(git_repository **repo_out, const char *path, int is_repo_being_created)
int git_repository_open(git_repository **repo_out, const char *path)
{
git_repository *repo;
int error = GIT_SUCCESS;
......@@ -312,7 +311,11 @@ static int repository_open_internal(git_repository **repo_out, const char *path,
if (repo == NULL)
return GIT_ENOMEM;
error = guess_repository_DIRs(repo, path, is_repo_being_created);
error = guess_repository_dirs(repo, path);
if (error < GIT_SUCCESS)
goto cleanup;
error = check_repository_dirs(repo);
if (error < GIT_SUCCESS)
goto cleanup;
......@@ -328,11 +331,6 @@ cleanup:
return error;
}
int git_repository_open(git_repository **repo_out, const char *path)
{
return repository_open_internal(repo_out, path, 0);
}
static void repository_free(git_repository *repo)
{
assert(repo);
......@@ -506,6 +504,7 @@ static int repo_init_find_dir(repo_init *results, const char* path)
int git_repository_init(git_repository **repo_out, const char *path, unsigned is_bare)
{
int error = GIT_SUCCESS;
git_repository *repo = NULL;
repo_init results;
assert(repo_out && path);
......@@ -524,15 +523,36 @@ int git_repository_init(git_repository **repo_out, const char *path, unsigned is
if (error < GIT_SUCCESS)
goto cleanup;
error = repository_open_internal(repo_out, results.path_repository, 1);
repo = repository_alloc();
if (repo == NULL) {
error = GIT_ENOMEM;
goto cleanup;
}
error = guess_repository_dirs(repo, results.path_repository);
if (error < GIT_SUCCESS)
goto cleanup;
assert((*repo_out)->is_bare == is_bare);
assert(repo->is_bare == is_bare);
error = repo_init_createhead(*repo_out);
error = init_odb(repo);
if (error < GIT_SUCCESS)
goto cleanup;
error = repo_init_createhead(repo);
if (error < GIT_SUCCESS)
goto cleanup;
/* should never fail */
assert(check_repository_dirs(repo) == GIT_SUCCESS);
free(results.path_repository);
*repo_out = repo;
return GIT_SUCCESS;
cleanup:
free(results.path_repository);
git_repository_free(repo);
return error;
}
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