summaryrefslogtreecommitdiffstats
path: root/command.py
blob: 8e93787eb28936cd4b8a920c2be575c8c54e93dc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
#
# Copyright (C) 2008 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import os
import optparse
import sys

from error import NoSuchProjectError

class Command(object):
  """Base class for any command line action in repo.
  """

  common = False
  manifest = None
  _optparse = None

  def WantPager(self, opt):
    return False

  @property
  def OptionParser(self):
    if self._optparse is None:
      try:
        me = 'repo %s' % self.NAME
        usage = self.helpUsage.strip().replace('%prog', me)
      except AttributeError:
        usage = 'repo %s' % self.NAME
      self._optparse = optparse.OptionParser(usage = usage)
      self._Options(self._optparse)
    return self._optparse

  def _Options(self, p):
    """Initialize the option parser.
    """

  def Usage(self):
    """Display usage and terminate.
    """
    self.OptionParser.print_usage()
    sys.exit(1)

  def Execute(self, opt, args):
    """Perform the action, after option parsing is complete.
    """
    raise NotImplementedError
 
  def GetProjects(self, args, missing_ok=False):
    """A list of projects that match the arguments.
    """
    all = self.manifest.projects
    result = []

    if not args:
      for project in all.values():
        if missing_ok or project.Exists:
          result.append(project)
    else:
      by_path = None

      for arg in args:
        project = all.get(arg)

        if not project:
          path = os.path.abspath(arg).replace('\\', '/')

          if not by_path:
            by_path = dict()
            for p in all.values():
              by_path[p.worktree] = p

          if os.path.exists(path):
            oldpath = None
            while path \
              and path != oldpath \
              and path != self.manifest.topdir:
              try:
                project = by_path[path]
                break
              except KeyError:
                oldpath = path
                path = os.path.dirname(path)
          else:
            try:
              project = by_path[path]
            except KeyError:
              pass

        if not project:
          raise NoSuchProjectError(arg)
        if not missing_ok and not project.Exists:
          raise NoSuchProjectError(arg)

        result.append(project)

    def _getpath(x):
      return x.relpath
    result.sort(key=_getpath)
    return result

class InteractiveCommand(Command):
  """Command which requires user interaction on the tty and
     must not run within a pager, even if the user asks to.
  """
  def WantPager(self, opt):
    return False

class PagedCommand(Command):
  """Command which defaults to output in a pager, as its
     display tends to be larger than one screen full.
  """
  def WantPager(self, opt):
    return True

class MirrorSafeCommand(object):
  """Command permits itself to run within a mirror,
     and does not require a working directory.
  """