int gitfo_move_file(char *from, char *to)
{
if (!link(from, to)) {
gitfo_unlink(from);
return GIT_SUCCESS;
}
if (!rename(from, to))
return GIT_SUCCESS;
return git_os_error();
}
int remove_object_files(const char *odb_dir, object_data *d)
{
if (gitfo_unlink(d->file) < 0) {
fprintf(stderr, "can't delete object file \"%s\"\n", d->file);
return -1;
}
if ((gitfo_rmdir(d->dir) < 0) && (errno != ENOTEMPTY)) {
fprintf(stderr, "can't remove object directory \"%s\"\n", d->dir);
return -1;
}
if (gitfo_rmdir(odb_dir) < 0) {
fprintf(stderr, "can't remove directory \"%s\"\n", odb_dir);
return -1;
}
return 0;
}
void git_filebuf_cleanup(git_filebuf *file)
{
if (file->fd >= 0)
gitfo_close(file->fd);
if (file->fd >= 0 && file->path_lock && gitfo_exists(file->path_lock) == GIT_SUCCESS)
gitfo_unlink(file->path_lock);
if (file->digest)
git_hash_free_ctx(file->digest);
free(file->buffer);
free(file->z_buf);
deflateEnd(&file->zs);
free(file->path_original);
free(file->path_lock);
}
void git_filebuf_cleanup(git_filebuf *file)
{
if (file->fd >= 0)
gitfo_close(file->fd);
if (gitfo_exists(file->path_lock) == GIT_SUCCESS)
gitfo_unlink(file->path_lock);
if (file->digest)
git_hash_free_ctx(file->digest);
free(file->buffer);
#ifdef GIT_FILEBUF_THREADS
free(file->buffer_back);
#endif
free(file->path_original);
free(file->path_lock);
}
int gitfo_mv(const char *from, const char *to)
{
#ifdef GIT_WIN32
/*
* Win32 POSIX compilance my ass. If the destination
* file exists, the `rename` call fails. This is as
* close as it gets with the Win32 API.
*/
return MoveFileEx(from, to, MOVEFILE_REPLACE_EXISTING) ? GIT_SUCCESS : GIT_EOSERR;
#else
/* Don't even try this on Win32 */
if (!link(from, to)) {
gitfo_unlink(from);
return GIT_SUCCESS;
}
if (!rename(from, to))
return GIT_SUCCESS;
return GIT_EOSERR;
#endif
}
static int lock_file(git_filebuf *file, int flags)
{
if (gitfo_exists(file->path_lock) == 0) {
if (flags & GIT_FILEBUF_FORCE)
gitfo_unlink(file->path_lock);
else
return git__throw(GIT_EOSERR, "Failed to lock file");
}
/* create path to the file buffer is required */
if (flags & GIT_FILEBUF_FORCE) {
file->fd = gitfo_creat_locked_force(file->path_lock, 0644);
} else {
file->fd = gitfo_creat_locked(file->path_lock, 0644);
}
if (file->fd < 0)
return git__throw(GIT_EOSERR, "Failed to create lock");
if ((flags & GIT_FILEBUF_APPEND) && gitfo_exists(file->path_original) == 0) {
git_file source;
char buffer[2048];
size_t read_bytes;
source = gitfo_open(file->path_original, O_RDONLY);
if (source < 0)
return git__throw(GIT_EOSERR, "Failed to lock file. Could not open %s", file->path_original);
while ((read_bytes = gitfo_read(source, buffer, 2048)) > 0) {
gitfo_write(file->fd, buffer, read_bytes);
if (file->digest)
git_hash_update(file->digest, buffer, read_bytes);
}
gitfo_close(source);
}
return GIT_SUCCESS;
}
int remove_loose_object(const char *repository_folder, git_object *object)
{
static const char *objects_folder = "objects/";
char *ptr, *full_path, *top_folder;
int path_length, objects_length;
assert(repository_folder && object);
objects_length = strlen(objects_folder);
path_length = strlen(repository_folder);
ptr = full_path = git__malloc(path_length + objects_length + GIT_OID_HEXSZ + 3);
strcpy(ptr, repository_folder);
strcpy(ptr + path_length, objects_folder);
ptr = top_folder = ptr + path_length + objects_length;
*ptr++ = '/';
git_oid_pathfmt(ptr, git_object_id(object));
ptr += GIT_OID_HEXSZ + 1;
*ptr = 0;
if (gitfo_unlink(full_path) < 0) {
fprintf(stderr, "can't delete object file \"%s\"\n", full_path);
return -1;
}
*top_folder = 0;
if ((gitfo_rmdir(full_path) < 0) && (errno != ENOTEMPTY)) {
fprintf(stderr, "can't remove object directory \"%s\"\n", full_path);
return -1;
}
free(full_path);
return GIT_SUCCESS;
}
static int lock_file(git_filebuf *file, int flags)
{
if (gitfo_exists(file->path_lock) == 0) {
if (flags & GIT_FILEBUF_FORCE)
gitfo_unlink(file->path_lock);
else
return GIT_EOSERR;
}
file->fd = gitfo_creat(file->path_lock, 0644);
if (file->fd < 0)
return GIT_EOSERR;
/* TODO: do a flock() in the descriptor file_lock */
if ((flags & GIT_FILEBUF_APPEND) && gitfo_exists(file->path_original) == 0) {
git_file source;
char buffer[2048];
size_t read_bytes;
source = gitfo_open(file->path_original, O_RDONLY);
if (source < 0)
return GIT_EOSERR;
while ((read_bytes = gitfo_read(source, buffer, 2048)) > 0) {
gitfo_write(file->fd, buffer, read_bytes);
if (file->digest)
git_hash_update(file->digest, buffer, read_bytes);
}
gitfo_close(source);
}
return GIT_SUCCESS;
}