stgit/commands/new.py

   1
   2 __copyright__ = """
   3 Copyright (C) 2005, Catalin Marinas <catalin.marinas@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License version 2 as
   7 published by the Free Software Foundation.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program; if not, see http://www.gnu.org/licenses/.
  16 """
  17
  18 from stgit import argparse, utils
  19 from stgit.commands import common
  20 from stgit.lib import git as gitlib, transaction
  21 from stgit.config import config
  22
  23 help = 'Create a new, empty patch'
  24 kind = 'patch'
  25 usage = ['[options] [--] [<name>]']
  26 description = """
  27 Create a new, empty patch on the current stack. The new patch is
  28 created on top of the currently applied patches, and is made the new
  29 top of the stack. Uncommitted changes in the work tree are not
  30 included in the patch -- that is handled by linkstg:refresh[].
  31
  32 The given name must be unique in the stack, and may only contain
  33 alphanumeric characters, dashes and underscores. If no name is given,
  34 one is generated from the first line of the patch's commit message.
  35
  36 An editor will be launched to edit the commit message to be used for
  37 the patch, unless the '--message' flag already specified one. The
  38 'patchdescr.tmpl' template file (if available) is used to pre-fill the
  39 editor."""
  40
  41 args = []
  42 options = (argparse.author_options()
  43            + argparse.message_options(save_template = True)
  44            + argparse.sign_options()
  45            + argparse.hook_options())
  46
  47 directory = common.DirectoryHasRepositoryLib()
  48
  49 def func(parser, options, args):
  50     """Create a new patch."""
  51     stack = directory.repository.current_stack
  52     if stack.repository.default_index.conflicts():
  53         raise common.CmdException(
  54             'Cannot create a new patch -- resolve conflicts first')
  55
  56     # Choose a name for the new patch -- or None, which means make one
  57     # up later when we've gotten hold of the commit message.
  58     if len(args) == 0:
  59         name = None
  60     elif len(args) == 1:
  61         name = args[0]
  62         if stack.patches.exists(name):
  63             raise common.CmdException('%s: patch already exists' % name)
  64     else:
  65         parser.error('incorrect number of arguments')
  66
  67     cd = gitlib.CommitData(
  68         tree = stack.head.data.tree, parents = [stack.head], message = '',
  69         author = gitlib.Person.author(), committer = gitlib.Person.committer())
  70     cd = common.update_commit_data(cd, options)
  71
  72     if options.save_template:
  73         options.save_template(cd.message)
  74         return utils.STGIT_SUCCESS
  75
  76     if not options.no_verify:
  77         cd = common.run_commit_msg_hook(stack.repository, cd)
  78
  79     if name == None:
  80         name = utils.make_patch_name(cd.message,
  81                                      lambda name: stack.patches.exists(name))
  82
  83     # Write the new patch.
  84     iw = stack.repository.default_iw
  85     trans = transaction.StackTransaction(stack, 'new')
  86     trans.patches[name] = stack.repository.commit(cd)
  87     trans.applied.append(name)
  88     return trans.run()