+++ /dev/null
-#!/usr/bin/env python
-
-"""
-invirt-getconf loads an invirt configuration file (either the original YAML
-source or the faster-to-load JSON cache) and prints the configuration option
-with the given name (key). Keys are dot-separated paths into the YAML
-configuration tree. List indexes (0-based) are also treated as path
-components.
-
-(Due to this path language, certain restrictions are placed on the keys used in
-the YAML configuration; e.g., they cannot contain dots.)
-
-Examples:
-
- invirt-getconf db.uri
- invirt-getconf authn.0.type
-"""
-
-from invirt.config import load
-from sys import argv, exit, stderr, stdout
-from optparse import OptionParser
-
-class invirt_exception(Exception): pass
-
-def main(argv):
- try:
- parser = OptionParser(usage = '%prog [options] key',
- description = __doc__.strip().split('\n\n')[0])
- parser.add_option('-s', '--src',
- default = '/etc/invirt/master.yaml',
- help = 'the source YAML configuration file to read from')
- parser.add_option('-c', '--cache',
- default = '/var/lib/invirt/invirt.json',
- help = 'path to the JSON cache')
- parser.add_option('-r', '--refresh',
- action = 'store_true',
- help = 'force the cache to be regenerated')
- parser.add_option('-l', '--ls',
- action = 'store_true',
- help = 'list node\'s children')
- opts, args = parser.parse_args()
-
- if len(args) > 1:
- raise invirt_exception(__doc__.strip())
- elif args and args[0]:
- components = args[0].split('.')
- else:
- components = []
-
- conf = load(opts.src, opts.cache, opts.refresh)
- for i, component in enumerate(components):
- progress = '.'.join(components[:i])
- if type(conf) not in (dict, list):
- raise invirt_exception(
- '%s: node has no children (atomic datum)' % progress)
- if type(conf) == list:
- try: component = int(component)
- except: raise invirt_exception(
- '%s: node a list; integer path component required, '
- 'but got "%s"' % (progress, component))
- try: conf = conf[component]
- except KeyError: raise invirt_exception(
- '%s: key "%s" not found' % (progress, component))
- except IndexError: raise invirt_exception(
- '%s: index %s out of range' % (progress, component))
-
- if opts.ls:
- if type(conf) not in (dict, list):
- raise invirt_exception(
- '%s: node has no children (atomic datum)'
- % '.'.join(components))
- if type(conf) == list:
- for i in xrange(len(conf)):
- print i
- else:
- for k in conf.iterkeys():
- print k
- else:
- if type(conf) not in (dict, list):
- print conf
- else:
- import yaml
- yaml.dump(conf, stdout,
- Dumper=yaml.CSafeDumper, default_flow_style=False)
- except invirt_exception, ex:
- print >> stderr, ex
- return 1
-
-if __name__ == '__main__':
- exit(main(argv))
-
-# vim:et:sw=4:ts=4