--- a/config.py Sun Jan 28 11:38:01 2018 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,173 +0,0 @@
-#!/usr/local/bin/python3
-#
-# Borgend configuration loader
-#
-
-import yaml
-import io
-import os
-import string
-import logging
-import platform
-from functools import reduce
-import loggers
-import branding
-import locations
-
-logger=loggers.get(__name__)
-
-#
-# Defaults
-#
-
-defaults={
- # borg
- # Default: backup every 6 hours (21600 seconds)
- 'backup_interval': 21600,
- # Default: retry every 15 minutes if unable to connect / unfinished backup
- 'retry_interval': 900,
- # Extract passphrases at startup or on demand?
- 'extract_passphrases_at_startup': True,
- # Do not insert a quit menu entry (useful for installing on computers of
- # inexperienced users)
- 'no_quit_menu_entry': False,
- # Borg settings
- 'borg': {
- 'executable': 'borg',
- 'common_parameters': [],
- 'create_parameters': [],
- 'prune_parameters': [],
- }
-}
-
-#
-# Type checking etc.
-#
-
-def error(x):
- raise AssertionError(x)
-
-def check_field(cfg, field, descr, loc, default, check):
- if field in cfg:
- tmp=cfg[field]
- if not check(tmp):
- error("%s is of invalid type for %s" % (field, loc))
- return tmp
- else:
- if default is not None:
- return default
- else:
- error("%s is not configured for %s" % (field, loc))
-
-def check_bool(cfg, field, descr, loc, default=None):
- return check_field(cfg, field, descr, loc, default,
- lambda x: isinstance(x, bool))
-
-def check_string(cfg, field, descr, loc, default=None):
- return check_field(cfg, field, descr, loc, default,
- lambda x: isinstance(x, str))
-
-def check_dict(cfg, field, descr, loc, default=None):
- return check_field(cfg, field, descr, loc, default,
- lambda x: isinstance(x, dict))
-
-def check_list(cfg, field, descr, loc, default=None):
- return check_field(cfg, field, descr, loc, default,
- lambda x: isinstance(x, list))
-
-def is_list_of(x, chk):
- if x is None:
- return True
- elif isinstance(x, list):
- return reduce(lambda y, z: y and chk(z), x, True)
- else:
- return False
-
-def check_list_of_dicts(cfg, field, descr, loc, default=None):
- return check_field(cfg, field, descr, loc, default,
- lambda x: is_list_of(x, lambda z: isinstance(z, dict)))
-
-def check_list_of_strings(cfg, field, descr, loc, default=None):
- return check_field(cfg, field, descr, loc, default,
- lambda x: is_list_of(x, lambda z: isinstance(z, str)))
-
-def check_nonempty_list_of_strings(cfg, field, descr, loc):
- return check_list_of_strings(cfg, field, descr, loc) and cfg[field]
-
-
-def check_nonneg_int(cfg, field, descr, loc, default=None):
- return check_field(cfg, field, descr, loc, default,
- lambda x: isinstance(x, int) and x>=0)
-
-
-#
-# Borg command line parameter configuration helper routines and classes
-#
-
-class BorgParameters:
- def __init__(self, common, create, prune):
- self.common=common or []
- self.create=create or []
- self.prune=prune or []
-
- def from_config(cfg, loc):
- common=check_list_of_dicts(cfg, 'common_parameters',
- 'Borg parameters', loc, default=[])
-
- create=check_list_of_dicts(cfg, 'create_parameters',
- 'Create parameters', loc, default=[])
-
- prune=check_list_of_dicts(cfg, 'prune_parameters',
- 'Prune parameters', loc, default=[])
-
- return BorgParameters(common, create, prune)
-
- def __add__(self, other):
- common=self.common+other.common
- create=self.create+other.create
- prune=self.prune+other.prune
- return BorgParameters(common, create, prune)
-
-#
-# Load config on module load
-#
-
-def expand_env(cfg, env):
- if isinstance(cfg, dict):
- out={key: expand_env(val, env) for key, val in cfg.items()}
- elif isinstance(cfg, list):
- out=[expand_env(val, env) for val in cfg]
- elif isinstance(cfg, str):
- out=string.Template(cfg).substitute(os.environ)
- else:
- out=cfg
-
- return out
-
-if not (os.path.exists(locations.cfgfile) and os.path.isfile(locations.cfgfile)):
- raise SystemExit("Configuration file required: %s" % locations.cfgfile)
-
-logger.info("Reading configuration %s missing" % locations.cfgfile)
-
-with io.open(locations.cfgfile, 'r') as file:
- settings=expand_env(yaml.load(file), os.environ);
-
-#
-# Verify basic settings
-#
-
-def check_and_set(cfg, field, loc, defa, fn):
- cfg[field]=fn(cfg, field, field, loc, defa[field])
-
-check_and_set(settings, 'backup_interval', 'top-level', defaults, check_nonneg_int)
-check_and_set(settings, 'retry_interval', 'top-level', defaults, check_nonneg_int)
-check_and_set(settings, 'extract_passphrases_at_startup', 'top-level', defaults, check_nonneg_int)
-check_and_set(settings, 'no_quit_menu_entry', 'top-level', defaults, check_bool)
-check_and_set(settings, 'borg', 'top-level', defaults, check_dict)
-# Check parameters within 'borg'
-if True:
- check_and_set(settings['borg'], 'executable', 'borg',
- defaults['borg'], check_string)
-
- borg_parameters=BorgParameters.from_config(settings['borg'], "top-level")
-