pungi/bin/pungi-config-dump

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
from __future__ import print_function
import argparse
import json
import os
import re
import sys
import kobo.conf
import pungi.checks
import pungi.util
def load_file(source, conf):
try:
with open(source) as f:
conf.load_from_dict(json.load(f))
except ValueError:
conf.load_from_file(source)
def load_source(source, conf):
if os.path.isfile(source):
load_file(source, conf)
else:
load_file(os.path.join(source, "logs/global/config-dump.global.log"), conf)
def validate_definition(value):
"""Check that the variable name is a valid Python variable name, and that
there is an equals sign. The value can by anything non-empty.
"""
if not re.match(r"^[a-z_]\w*=.+$", value):
raise argparse.ArgumentTypeError(
"definition should be in var=value format: %r" % value
)
return value
def main():
parser = argparse.ArgumentParser()
parser.add_argument(
"sources",
metavar="SOURCE",
nargs="+",
help=(
"Source for the configuration; either a compose "
"or arbitrary number of config files."
),
)
parser.add_argument(
"--freeze-event",
metavar="ID",
type=pungi.util.parse_koji_event,
help=(
"Include this koji event in the created config; "
"takes either event ID or path to a compose"
),
)
parser.add_argument(
"-e",
"--define",
action="append",
metavar="VAR=VALUE",
type=validate_definition,
help=(
"Define a variable on command line and inject it into the config file. "
"Can be used multiple times."
),
)
group = parser.add_mutually_exclusive_group()
group.add_argument(
"--just-dump",
action="store_true",
help=(
"Do not transform the config in any way. Default values are not "
"added, git references are not resolved."
),
)
group.add_argument(
"--offline", action="store_true", help="Do not resolve git references."
)
args = parser.parse_args()
defines = dict(var.split("=", 1) for var in args.define)
conf = kobo.conf.PyConfigParser()
conf.load_from_dict(defines)
for source in args.sources:
load_source(source, conf)
if not args.just_dump:
errors, _ = pungi.checks.validate(conf, offline=args.offline)
if errors:
for error in errors:
print(error, file=sys.stderr)
return False
if args.freeze_event:
conf["koji_event"] = args.freeze_event
# Clean up defines from the final final config. We don't want to keep them
# as they would cause warnings during validation.
for key in defines:
del conf[key]
json.dump(conf, sys.stdout, sort_keys=True, indent=4)
return True
if __name__ == "__main__":
if not main():
sys.exit(1)