chiark - git - mdw - stgit/blob - stgit/commands/common.py

   1 """Function/variables commmon to all the commands
   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 sys, os, re
  22 from optparse import OptionParser, make_option
  23
  24 from stgit.utils import *
  25 from stgit import stack, git
  26
  27
  28 # Command exception class
  29 class CmdException(Exception):
  30     pass
  31
  32
  33 # Utility functions
  34 def git_id(string):
  35     """Return the GIT id
  36     """
  37     if not string:
  38         return None
  39
  40     string_list = string.split('/')
  41
  42     if len(string_list) == 1:
  43         patch_name = None
  44         git_id = string_list[0]
  45
  46         if git_id == 'HEAD':
  47             return git.get_head()
  48         if git_id == 'base':
  49             return read_string(crt_series.get_base_file())
  50
  51         for path in [os.path.join(git.base_dir, 'refs', 'heads'),
  52                      os.path.join(git.base_dir, 'refs', 'tags')]:
  53             id_file = os.path.join(path, git_id)
  54             if os.path.isfile(id_file):
  55                 return read_string(id_file)
  56     elif len(string_list) == 2:
  57         patch_name = string_list[0]
  58         if patch_name == '':
  59             patch_name = crt_series.get_current()
  60         git_id = string_list[1]
  61
  62         if not patch_name:
  63             raise CmdException, 'No patches applied'
  64         elif not (patch_name in crt_series.get_applied()
  65                 + crt_series.get_unapplied()):
  66             raise CmdException, 'Unknown patch "%s"' % patch_name
  67
  68         if git_id == 'bottom':
  69             return crt_series.get_patch(patch_name).get_bottom()
  70         if git_id == 'top':
  71             return crt_series.get_patch(patch_name).get_top()
  72
  73     raise CmdException, 'Unknown id: %s' % string
  74
  75 def check_local_changes():
  76     if git.local_changes():
  77         raise CmdException, \
  78               'local changes in the tree. Use "refresh" to commit them'
  79
  80 def check_head_top_equal():
  81     if not crt_series.head_top_equal():
  82         raise CmdException, \
  83               'HEAD and top are not the same. You probably committed\n' \
  84               '  changes to the tree ouside of StGIT. If you know what you\n' \
  85               '  are doing, use the "refresh -f" command'
  86
  87 def check_conflicts():
  88     if os.path.exists(os.path.join(git.base_dir, 'conflicts')):
  89         raise CmdException, 'Unsolved conflicts. Please resolve them first'
  90
  91 def print_crt_patch():
  92     patch = crt_series.get_current()
  93     if patch:
  94         print 'Now at patch "%s"' % patch
  95     else:
  96         print 'No patches applied'
  97
  98 def resolved(filename):
  99     git.update_cache([filename])
 100     for ext in ['.local', '.older', '.remote']:
 101         fn = filename + ext
 102         if os.path.isfile(fn):
 103             os.remove(fn)
 104
 105 def resolved_all():
 106     conflicts = git.get_conflicts()
 107     if conflicts:
 108         for filename in conflicts:
 109             resolved(filename)
 110         os.remove(os.path.join(git.base_dir, 'conflicts'))
 111
 112 def name_email(string):
 113     """Return a tuple consisting of the name and email parsed from a
 114     standard 'name <email>' string
 115     """
 116     names = re.split('([^<>]*)<([^<>]*)>', string)
 117     if len(names) != 4:
 118         raise CmdException, 'Incorrect "name <email>" string: %s' % string
 119
 120     return tuple([names[1].strip(), names[2].strip()])