flags.py

# coding: utf-8

# In[88]:

import json

def loadfile(path):
    with open(path, 'r') as f:
        return json.loads(f.read())
    


# In[89]:

import os

def get_files(path):
    for f in os.listdir(path):
        if f.endswith('.json'):
            yield os.path.join(path, f)
            


# In[90]:

from collections import defaultdict

data = [{'cfg': loadfile(path), 'path': path} for path in get_files('config')]

features = {}
features_seen_in = defaultdict(set)
for item in data:
    config = item['cfg']
    path = item['path']
        
    if 'features' not in config or not isinstance(config, dict) or not isinstance(config['features'], dict):
        continue
    seen_features = []
    for feature_name, enabled in config['features'].iteritems():
        seen_features.append(feature_name)
        features_seen_in[feature_name].add(path[7:-5])
        if feature_name in features and not features[feature_name]:
            features[feature_name] = False
        else:
            features[feature_name] = enabled


# In[91]:

from itertools import chain
all_envs = set(chain(*features_seen_in.itervalues()))
all_envs


# In[101]:

final = dict([(key, value) for key, value in features.iteritems() if value and features_seen_in[key] == all_envs])
for x in sorted(final.iterkeys()):
    print x


# In[ ]: