def _pkgs_get_available(self):
""" If there is no package list in the working dir, download one."""
if not path.exists(self.pkg_list):
self._pkgs_update_available()
return json.loads(dftlib.read(self.pkg_list))
def __init__(self, path_root_dir, path_config):
""" Set up paths and file objects to use. """
self.config = json.loads(dftlib.read(path_config))
self.path_defaults = self.config["paths"]["dirs"]["defaults"]
self.df_paths = dftlib.make_df_paths(path_root_dir, "linux")
self.path_inits = path.join(self.df_paths["init"], "init.txt")
self.path_d_inits = path.join(self.df_paths["init"], "d_init.txt")
self.inits = dftlib.read_lines(self.path_inits)
self.d_inits = dftlib.read_lines(self.path_d_inits)
def _pkgs_update_available(self):
""" If avilable packages.json doesn't exist, download it.
If it does exist download a fresh copy, and if the
versions differ, write the contents of the new file
to the old one.
"""
dftlib.ensure_dir(self.workdir)
pkgs_web = dftlib.get_url(self.config["urls"]["pkg_list"])
if not path.exists(path.join(self.workdir, self.pkg_list)):
dftlib.write(self.pkg_list, pkgs_web)
else:
pkgs_new = json.loads(pkgs_web)
pkgs_cur = json.loads(dftlib.read(
path.join(self.workdir, self.pkg_list)))
if int(pkgs_new["version"]) > int(pkgs_cur["version"]):
dftlib.write(self.pkg_list, json.dumps(pkgs_new))
def _get_opts_from_file(self, path_optsfile):
return json.loads(dftlib.read(path_optsfile))
