def get_workbench_dependencies(fname) : """ return set of block types immediately needed by workbench file fname these block types may have other dependencies """ try : with open(fname, "rb") as f : version, meta, resources = serializer.unpickle_workbench_data(f) except Exception as e : print(here(), "error loading workbench file", fname, e) return None used_types = set() #XXX type_names must be unique -> need to extend them with library path, including c modules for r_type, r_version, r_name, resrc in resources : if (r_type == serializer.RES_TYPE_SHEET and r_version == serializer.RES_TYPE_SHEET_VERSION and is_macro_name(r_name) ) : types, struct, meta = resrc for nr, block_type in types : lib_name, type_name = split_full_type_name(block_type) if lib_name : used_types.update((block_type,)) return used_types
def load_library_sheet(library, full_name, sheet_name, w_data=None) :
"""
search library for item full_name and return sheet with sheet_name from this context
raises Exception if there is problem, returns None if just not found
"""
lib_data = library.get_block_and_lib(full_name)
if lib_data is None :
raise Exception("library item '" + full_name + "' not found")
lib, (item, proto) = lib_data
if w_data is None :
with open(item.file_path, "rb") as f :
w_data = serializer.unpickle_workbench_data(f)
res_found = tuple(serializer.get_resource(w_data, serializer.RES_TYPE_SHEET, None, sheet_name))
if res_found is None :
raise Exception("can not load library item '" + full_name + "'")
sheet_data, = res_found
sheet = serializer.restore_dfs_model(*(sheet_data + (library,)))
return sheet
def load_workbench_library(lib_name, file_path, library=None, w_data=None) : """ lib_name - full library name, example 'logic.flipflops' """ if file_path is None : data = w_data else : with open(file_path, "rb") as f : data = serializer.unpickle_workbench_data(f) w = dfs.Workbench( # lib_dir=os.path.join(os.getcwd(), "library"), blockfactory=library, passive=True, do_create_block_factory=False) serializer.restore_workbench(data, w, library=library) return load_blocks_from_workbench(w, lib_name)
