static int loose_backend__exists(git_odb_backend *backend, const git_oid *oid)
{
git_buf object_path = GIT_BUF_INIT;
int error;
assert(backend && oid);
error = locate_object(&object_path, (loose_backend *)backend, oid);
git_buf_dispose(&object_path);
return !error;
}
public void main(object connection, string cmd, string args)
{
if( !args || "" == args )
{
connection->receive_message(MSG_ERROR, "Usage '" + cmd + " <object-id>'.\n");
return;
}
object o = locate_object(args, connection);
if( o )
{
string msg = "Destructed '" + o + "'.\n";
destruct(o);
connection->receive_message(MSG_CREATE, msg);
}
else
{
connection->receive_message(MSG_ERROR, "No '" + args + "' can be found.\n");
}
}
static int loose_backend__read(void **buffer_p, size_t *len_p, git_otype *type_p, git_odb_backend *backend, const git_oid *oid)
{
git_buf object_path = GIT_BUF_INIT;
git_rawobj raw;
int error = 0;
assert(backend && oid);
if (locate_object(&object_path, (loose_backend *)backend, oid) < 0) {
error = git_odb__error_notfound("no matching loose object",
oid, GIT_OID_HEXSZ);
} else if ((error = read_loose(&raw, &object_path)) == 0) {
*buffer_p = raw.data;
*len_p = raw.len;
*type_p = raw.type;
}
git_buf_dispose(&object_path);
return error;
}
static int loose_backend__readstream(
git_odb_stream **stream_out,
size_t *len_out,
git_otype *type_out,
git_odb_backend *_backend,
const git_oid *oid)
{
loose_backend *backend;
loose_readstream *stream = NULL;
git_hash_ctx *hash_ctx = NULL;
git_buf object_path = GIT_BUF_INIT;
obj_hdr hdr;
int error = 0;
assert(stream_out && len_out && type_out && _backend && oid);
backend = (loose_backend *)_backend;
*stream_out = NULL;
*len_out = 0;
*type_out = GIT_OBJ_BAD;
if (locate_object(&object_path, backend, oid) < 0) {
error = git_odb__error_notfound("no matching loose object",
oid, GIT_OID_HEXSZ);
goto done;
}
stream = git__calloc(1, sizeof(loose_readstream));
GITERR_CHECK_ALLOC(stream);
hash_ctx = git__malloc(sizeof(git_hash_ctx));
GITERR_CHECK_ALLOC(hash_ctx);
if ((error = git_hash_ctx_init(hash_ctx)) < 0 ||
(error = git_futils_mmap_ro_file(&stream->map, object_path.ptr)) < 0 ||
(error = git_zstream_init(&stream->zstream, GIT_ZSTREAM_INFLATE)) < 0)
goto done;
/* check for a packlike loose object */
if (!is_zlib_compressed_data(stream->map.data, stream->map.len))
error = loose_backend__readstream_packlike(&hdr, stream);
else
error = loose_backend__readstream_standard(&hdr, stream);
if (error < 0)
goto done;
stream->stream.backend = _backend;
stream->stream.hash_ctx = hash_ctx;
stream->stream.read = &loose_backend__readstream_read;
stream->stream.free = &loose_backend__readstream_free;
*stream_out = (git_odb_stream *)stream;
*len_out = hdr.size;
*type_out = hdr.type;
done:
if (error < 0) {
git_futils_mmap_free(&stream->map);
git_zstream_free(&stream->zstream);
git_hash_ctx_cleanup(hash_ctx);
git__free(hash_ctx);
git__free(stream);
}
git_buf_dispose(&object_path);
return error;
}
