Files
homelab_gamevault/data_backend.py
2024-02-25 01:05:53 +01:00

82 lines
2.5 KiB
Python

import os
import glob
import yaml
import software
class DataBackend:
def _create_cache_dir(self, cache_dir):
os.makedirs(cache_dir, exist_ok=True)
def __init__(self, user, password, install_dir, remote_root_dir=None):
self.user = user
self.password = password
self.remote_root_dir = remote_root_dir
self.install_dir = install_dir
def get(self, path, return_content=False):
'''Return the contents of this path'''
raise NotImplementedError()
def list(self, path):
'''List the contents of this path'''
raise NotImplementedError()
def find_all_metadata(self):
'''Return key-value map of { software : metadata-dict }'''
raise NotImplementedError
class LocalFS(DataBackend):
def get(self, path, cache_dir=None, return_content=False):
# check the load cache dir #
if cache_dir:
self._create_cache_dir(cache_dir)
elif not cache_dir and not return_content:
AssertionError("Need to set either cache_dir or return_content!")
# prepend root dir if not given #
fullpath = path
if self.remote_root_dir and not path.startswith(self.remote_root_dir):
fullpath = os.path.join(self.remote_root_dir, path)
# load the file on remote #
with open(fullpath, "rb") as f:
print(cache_dir, path)
target = os.path.join(cache_dir, os.path.basename(path))
with open(target, "wb") as ft:
if return_content:
return f.read()
ft.write(f.read())
return target
def list(self, path, fullpaths=False):
# prepend root dir if not given #
fullpath = path
if self.remote_root_dir and not path.startswith(self.remote_root_dir):
fullpath = os.path.join(self.remote_root_dir, path)
if not os.path.isdir(fullpath):
return []
if fullpaths:
return [ os.path.join(path, filename) for filename in os.listdir(fullpath)]
else:
return os.listdir(fullpath)
def find_all_metadata(self):
meta_info_list = []
for software_dir in glob.iglob(self.remote_root_dir + "/*"):
meta_file = os.path.join(software_dir, "meta.yaml")
if not os.path.isfile(meta_file):
continue
else:
meta_info_list.append(software.Software(meta_file, self))
return meta_info_list