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#!/usr/bin/python
# produces cleaner build.json files
import collections
import json
import os
import sys
_TOP_LEVEL_KEYS = ['settings', 'filegroups', 'libs', 'targets']
_VERSION_KEYS = ['major', 'minor', 'micro', 'build']
_ELEM_KEYS = [
'name',
'build',
'language',
'public_headers',
'headers',
'src',
'deps']
def rebuild_as_ordered_dict(indict, special_keys):
outdict = collections.OrderedDict()
for key in special_keys:
if key in indict:
outdict[key] = indict[key]
for key in sorted(indict.keys()):
if key in special_keys: continue
outdict[key] = indict[key]
return outdict
def clean_elem(indict):
for name in ['public_headers', 'headers', 'src']:
if name not in indict: continue
inlist = indict[name]
protos = set(x for x in inlist if os.path.splitext(x)[1] == '.proto')
others = set(x for x in inlist if x not in protos)
indict[name] = sorted(protos) + sorted(others)
return rebuild_as_ordered_dict(indict, _ELEM_KEYS)
for filename in sys.argv[1:]:
with open(filename) as f:
js = json.load(f)
js = rebuild_as_ordered_dict(js, _TOP_LEVEL_KEYS)
js['settings']['version'] = rebuild_as_ordered_dict(
js['settings']['version'], _VERSION_KEYS)
for grp in ['filegroups', 'libs', 'targets']:
if grp not in js: continue
js[grp] = sorted([clean_elem(x) for x in js[grp]],
key=lambda x: (x.get('language', '_'), x['name']))
output = json.dumps(js, indent = 2)
# massage out trailing whitespace
lines = []
for line in output.splitlines():
lines.append(line.rstrip() + '\n')
with open(filename, 'w') as f:
f.write(''.join(lines))
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