#309 add global config file support

pip/baseparser.py

@@ -7,7 +7,7 @@
 import textwrap
 from distutils.util import strtobool
 from pip.backwardcompat import ConfigParser, string_types, ssl
-from pip.locations import default_config_file, default_log_file
+from pip.locations import default_config_file, default_log_file, global_config_file
 from pip.util import get_terminal_size, get_prog
 
 
@@ -137,7 +137,7 @@ def get_config_files(self):
         config_file = os.environ.get('PIP_CONFIG_FILE', False)
         if config_file and os.path.exists(config_file):
             return [config_file]
-        return [default_config_file]
+        return [global_config_file, default_config_file]
 
     def update_defaults(self, defaults):
         """Updates the given defaults with values from the config files and

pip/locations.py

@@ -88,11 +88,14 @@ def _get_build_prefix():
     default_storage_dir = os.path.join(user_dir, 'pip')
     default_config_file = os.path.join(default_storage_dir, 'pip.ini')
     default_log_file = os.path.join(default_storage_dir, 'pip.log')
+    global_config_file = os.path.join(os.environ['ALLUSERSPROFILE'],
+        'Application Data', 'pip', 'pip.ini')
 else:
     bin_py = os.path.join(sys.prefix, 'bin')
     default_storage_dir = os.path.join(user_dir, '.pip')
     default_config_file = os.path.join(default_storage_dir, 'pip.conf')
     default_log_file = os.path.join(default_storage_dir, 'pip.log')
+    global_config_file = '/etc/pip.conf'
 
     # Forcing to use /usr/local/bin for standard Mac OS X framework installs
     # Also log to ~/Library/Logs/ for use with the Console.app log viewer