mdw@git.distorted.org.uk Git - stgit/blob - stgit/config.py

   1 """Handles the Stacked GIT configuration files
   2 """
   3
   4 __copyright__ = """
   5 Copyright (C) 2005, Catalin Marinas <catalin.marinas@gmail.com>
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License version 2 as
   9 published by the Free Software Foundation.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19 """
  20
  21 import os, ConfigParser
  22
  23 from stgit import basedir
  24
  25
  26 config = ConfigParser.RawConfigParser()
  27
  28 def config_setup():
  29     global config
  30
  31     # Set the defaults
  32     config.add_section('stgit')
  33     config.set('stgit', 'autoresolved', 'no')
  34     config.set('stgit', 'smtpserver', 'localhost:25')
  35     config.set('stgit', 'smtpdelay', '5')
  36     config.set('stgit', 'pullcmd', 'git-pull')
  37     config.set('stgit', 'merger',
  38                'diff3 -L current -L ancestor -L patched -m -E ' \
  39                '"%(branch1)s" "%(ancestor)s" "%(branch2)s" > "%(output)s"')
  40     config.set('stgit', 'keeporig', 'yes')
  41     config.set('stgit', 'keepoptimized', 'no')
  42     config.set('stgit', 'extensions', '.ancestor .current .patched')
  43
  44     # Read the configuration files (if any) and override the default settings
  45     config.read('/etc/stgitrc')
  46     config.read(os.path.expanduser('~/.stgitrc'))
  47     config.read(os.path.join(basedir.get(), 'stgitrc'))
  48
  49     # Set the PAGER environment to the config value (if any)
  50     if config.has_option('stgit', 'pager'):
  51         os.environ['PAGER'] = config.get('stgit', 'pager')
  52
  53     # [gitmergeonefile] section is deprecated. In case it exists copy the
  54     # options/values to the [stgit] one
  55     if config.has_section('gitmergeonefile'):
  56         for option, value in config.items('gitmergeonefile'):
  57             config.set('stgit', option, value)
  58
  59
  60 class ConfigOption:
  61     """Delayed cached reading of a configuration option.
  62     """
  63     def __init__(self, section, option):
  64         self.__section = section
  65         self.__option = option
  66         self.__value = None
  67
  68     def __str__(self):
  69         if not self.__value:
  70             self.__value = config.get(self.__section, self.__option)
  71         return self.__value
  72
  73
  74 # cached extensions
  75 __extensions = None
  76
  77 def file_extensions():
  78     """Returns a dictionary with the conflict file extensions
  79     """
  80     global __extensions
  81
  82     if not __extensions:
  83         cfg_ext = config.get('stgit', 'extensions').split()
  84         if len(cfg_ext) != 3:
  85             raise CmdException, '"extensions" configuration error'
  86
  87         __extensions = { 'ancestor': cfg_ext[0],
  88                          'current':  cfg_ext[1],
  89                          'patched':  cfg_ext[2] }
  90
  91     return __extensions