+++ /dev/null
-import json, yaml
-from invirt.common import *
-from os import error, makedirs
-from os.path import dirname, getmtime
-
-default_src_path = '/etc/invirt/master.yaml'
-default_cache_path = '/var/lib/invirt/invirt.json'
-
-try: default_loader = yaml.CSafeLoader
-except: default_loader = yaml.SafeLoader
-
-def load(src_path = default_src_path,
- cache_path = default_cache_path,
- force_refresh = False):
- """
- Try loading the configuration from the faster-to-load JSON cache at
- cache_path. If it doesn't exist or is outdated, load the configuration
- instead from the original YAML file at src_path and regenerate the cache.
- I assume I have the permissions to write to the cache directory.
- """
- if force_refresh:
- do_refresh = True
- else:
- src_mtime = getmtime(src_path)
- try: cache_mtime = getmtime(cache_path)
- except OSError: do_refresh = True
- else: do_refresh = src_mtime > cache_mtime
-
- if not do_refresh:
- # try reading from the cache first
- try: cfg = wrap(file(cache_path), lambda f: json.read(f.read()))
- except: do_refresh = True
-
- if do_refresh:
- # reload the source and regenerate the cache
- cfg = wrap(file(src_path), lambda f: yaml.load(f, default_loader))
- try: wrap(file(cache_path, 'w'), lambda f: f.write(json.write(cfg)))
- except: pass # silent failure
- return cfg
-
-dicts = load()
-structs = dicts2struct(dicts)
-
-# vim:et:sw=4:ts=4