michael@0: #!/usr/bin/env python
michael@0: # This Source Code Form is subject to the terms of the Mozilla Public
michael@0: # License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0: # file, You can obtain one at http://mozilla.org/MPL/2.0/.
michael@0: 
michael@0: import sys
michael@0: import json
michael@0: import buildconfig
michael@0: 
michael@0: 
michael@0: def parse_cmdline(args):
michael@0:     """Take a list of strings in the format K=V and turn them into a python
michael@0:     dictionary"""
michael@0:     contents = {}
michael@0:     for arg in args:
michael@0:         key, s, value = arg.partition("=")
michael@0:         if s == '':
michael@0:             print "ERROR: Malformed command line key value pairing (%s)" % arg
michael@0:             exit(1)
michael@0:         contents[key.lower()] = value
michael@0:     return contents
michael@0: 
michael@0: 
michael@0: def main():
michael@0:     if len(sys.argv) < 2:
michael@0:         print "ERROR: You must specify an output file"
michael@0:         exit(1)
michael@0: 
michael@0:     all_key_value_pairs = {}
michael@0:     important_substitutions = [
michael@0:         'target_alias', 'target_cpu', 'target_os', 'target_vendor',
michael@0:         'host_alias', 'host_cpu', 'host_os', 'host_vendor',
michael@0:         'MOZ_UPDATE_CHANNEL', 'MOZ_APP_VENDOR', 'MOZ_APP_NAME',
michael@0:         'MOZ_APP_VERSION', 'MOZ_APP_MAXVERSION', 'MOZ_APP_ID',
michael@0:         'CC', 'CXX', 'LD', 'AS']
michael@0: 
michael@0:     all_key_value_pairs = dict([(x.lower(), buildconfig.substs[x]) for x in important_substitutions])
michael@0:     all_key_value_pairs.update(parse_cmdline(sys.argv[2:]))
michael@0: 
michael@0:     with open(sys.argv[1], "w+") as f:
michael@0:         json.dump(all_key_value_pairs, f, indent=2, sort_keys=True)
michael@0:         f.write('\n')
michael@0: 
michael@0: 
michael@0: if __name__=="__main__":
michael@0:     main()