Polling strategy

[rainbowstream.git] / rainbowstream / config.py

diff --git a/rainbowstream/config.py b/rainbowstream/config.py
index 2e79c9aea768e210c76c3fedcae1b7b5246b3ae1..5f5b81bd18fe67f23339fe631e6e7b9b3e6b25ea 100644 (file)
--- a/rainbowstream/config.py
+++ b/rainbowstream/config.py
@@ -4,12 +4,16 @@ import os
 import os.path
 from collections import OrderedDict
 
-# Regular expression for comments
+# Regular expression for comments in config file
 comment_re = re.compile(
-    '(^)?[^\S\n]*/(?:\*(.*?)\*/[^\S\n]*|/[^\n]*)($)?',
+    '(^)[^\S\n]*/(?:\*(.*?)\*/[^\S\n]*|/[^\n]*)($)?',
     re.DOTALL | re.MULTILINE
 )
 
+# Config dictionary
+c = {}
+
+
 def fixup(adict, k, v):
     """
     Fix up a key in json format
@@ -17,7 +21,7 @@ def fixup(adict, k, v):
     for key in adict.keys():
         if key == k:
             adict[key] = v
-        elif type(adict[key]) is dict:
+        elif isinstance(adict[key], dict):
             fixup(adict[key], k, v)
 
 
@@ -38,26 +42,30 @@ def get_all_config():
     """
     Get all config
     """
-    path = os.environ.get(
-        'HOME',
-        os.environ.get(
-            'USERPROFILE',
-            '')) + os.sep + '.rainbow_config.json'
-    data = load_config(path)
-    # Hard to set from prompt
-    data.pop('ONLY_LIST',None)
-    data.pop('IGNORE_LIST',None)
-    return data
+    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)
+        data.pop('QUOTE_FORMAT', None)
+        data.pop('NOTIFY_FORMAT', None)
+        return data
+    except:
+        return []
 
 
 def get_default_config(key):
     """
     Get default value of a config key
     """
-    path = os.path.dirname(
-        __file__) + '/colorset/config'
-    data = load_config(path)
-    return data[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):
@@ -67,28 +75,59 @@ def get_config(key):
     return c[key]
 
 
-def set_config(key,value):
+def set_config(key, value):
     """
     Set a config key with specific value
     """
     # Modify value
     if value.isdigit():
         value = int(value)
-    elif value.lower() == 'True':
+    elif value.lower() == 'true':
         value = True
-    elif value.lower() == 'False':
+    elif value.lower() == 'false':
         value = False
-    # Fix up
-    path = os.environ.get(
-        'HOME',
-        os.environ.get(
-            'USERPROFILE',
-            '')) + os.sep + '.rainbow_config.json'
-    data = load_config(path)
-    fixup(data, key, value)
+    # 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)
+        json.dump(data, out, indent=4)
     os.system('chmod 777 ' + path)
 
 
@@ -96,51 +135,47 @@ def reload_config():
     """
     Reload config
     """
-    rainbow_config = os.environ.get(
-        'HOME',
-        os.environ.get(
-            'USERPROFILE',
-            '')) + os.sep + '.rainbow_config.json'
     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:
-        print('It seems that ~/.rainbow_config.json has wrong format :(')
+        raise Exception('Can not reload config file with wrong format.')
 
 
-# Config dictionary
-c = {}
+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
+
 
-# 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.environ.get(
-    'HOME',
-    os.environ.get(
-        'USERPROFILE',
-        '')) + os.sep + '.rainbow_config.json'
-try:
-    data = load_config(rainbow_config)
-    for d in data:
-        c[d] = data[d]
-except:
-    print('It seems that ~/.rainbow_config.json has wrong format :(')
-
-# 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()