+import json
+import re
+import os
+import os.path
+from collections import OrderedDict
+
+# Regular expression for comments in config file
+comment_re = re.compile(
+ '(^)?[^\S\n]*/(?:\*(.*?)\*/[^\S\n]*|/[^\n]*)($)?',
+ re.DOTALL | re.MULTILINE
+)
+
+# Config dictionary
+c = {}
+
+
+def fixup(adict, k, v):
+ """
+ Fix up a key in json format
+ """
+ for key in adict.keys():
+ if key == k:
+ adict[key] = v
+ elif isinstance(adict[key], dict):
+ fixup(adict[key], k, v)
+
+
+def load_config(filepath):
+ """
+ Load config from filepath
+ """
+ with open(filepath) as f:
+ content = ''.join(f.readlines())
+ match = comment_re.search(content)
+ while match:
+ content = content[:match.start()] + content[match.end():]
+ match = comment_re.search(content)
+ return json.loads(content, object_pairs_hook=OrderedDict)
+
+
+def get_all_config():
+ """
+ Get all config
+ """
+ try:
+ path = os.path.expanduser("~") + os.sep + '.rainbow_config.json'
+ data = load_config(path)
+ # Hard to set from prompt
+ data.pop('ONLY_LIST', None)
+ data.pop('IGNORE_LIST', None)
+ data.pop('FORMAT', None)
+ return data
+ except:
+ return []
+
+
+def get_default_config(key):
+ """
+ Get default value of a config key
+ """
+ try:
+ path = os.path.dirname(__file__) + '/colorset/config'
+ data = load_config(path)
+ return data[key]
+ except:
+ raise Exception('This config key does not exist in default.')
+
+
+def get_config(key):
+ """
+ Get current value of a config key
+ """
+ return c[key]
+
+
+def set_config(key, value):
+ """
+ Set a config key with specific value
+ """
+ # Modify value
+ if value.isdigit():
+ value = int(value)
+ elif value.lower() == 'true':
+ value = True
+ elif value.lower() == 'false':
+ value = False
+ # Update global config
+ c[key] = value
+ # Load current user config
+ path = os.path.expanduser("~") + os.sep + '.rainbow_config.json'
+ data = {}
+ try:
+ data = load_config(path)
+ except:
+ return
+ # Update config file
+ if key in data:
+ fixup(data, key, value)
+ else:
+ data[key] = value
+ # Save
+ with open(path, 'w') as out:
+ json.dump(data, out, indent=4)
+ os.system('chmod 777 ' + path)
+
+
+def delete_config(key):
+ """
+ Delete a config key
+ """
+ path = os.path.expanduser("~") + os.sep + '.rainbow_config.json'
+ try:
+ data = load_config(path)
+ except:
+ raise Exception('Config file is messed up.')
+ # Drop key
+ if key in data and key in c:
+ data.pop(key)
+ c.pop(key)
+ try:
+ data[key] = c[key] = get_default_config(key)
+ except:
+ pass
+ else:
+ raise Exception('No such config key.')
+ # Save
+ with open(path, 'w') as out:
+ json.dump(data, out, indent=4)
+ os.system('chmod 777 ' + path)
+
+
+def reload_config():
+ """
+ Reload config
+ """
+ try:
+ rainbow_config = os.path.expanduser("~") + \
+ os.sep + '.rainbow_config.json'
+ data = load_config(rainbow_config)
+ for d in data:
+ c[d] = data[d]
+ except:
+ raise Exception('Can not reload config file with wrong format.')
+
+
+def init_config():
+ """
+ Init configuration
+ """
+ # Load the initial config
+ config = os.path.dirname(__file__) + \
+ '/colorset/config'
+ try:
+ data = load_config(config)
+ for d in data:
+ c[d] = data[d]
+ except:
+ pass
+ # Load user's config
+ rainbow_config = os.path.expanduser("~") + os.sep + '.rainbow_config.json'
+ try:
+ data = load_config(rainbow_config)
+ for d in data:
+ c[d] = data[d]
+ except (IOError, ValueError) as e:
+ c['USER_JSON_ERROR'] = str(e)
+ # Load default theme
+ theme_file = os.path.dirname(__file__) + \
+ '/colorset/' + c['THEME'] + '.json'
+ try:
+ data = load_config(theme_file)
+ for d in data:
+ c[d] = data[d]
+ except:
+ pass
+
+
+# Init config
+init_config()