1 # (Be in -*- python -*- mode.)
3 # ====================================================================
4 # Copyright (c) 2000-2008 CollabNet. All rights reserved.
6 # This software is licensed as described in the file COPYING, which
7 # you should have received as part of this distribution. The terms
8 # are also available at http://subversion.tigris.org/license-1.html.
9 # If newer versions of this license are posted there, you may use a
10 # newer version instead, at your option.
12 # This software consists of voluntary contributions made by many
13 # individuals. For exact contribution history, see the revision
14 # history and logs, available at http://cvs2svn.tigris.org/.
15 # ====================================================================
17 """Access the CVS repository via CVS's 'cvs' command."""
20 from cvs2svn_lib
.common
import FatalError
21 from cvs2svn_lib
.process
import check_command_runs
22 from cvs2svn_lib
.process
import CommandFailedException
23 from cvs2svn_lib
.abstract_rcs_revision_manager
import AbstractRCSRevisionReader
26 class CVSRevisionReader(AbstractRCSRevisionReader
):
27 """A RevisionReader that reads the contents via CVS."""
29 # Different versions of CVS support different global options. Here
30 # are the global options that we try to use, in order of decreasing
32 _possible_global_options
= [
43 def __init__(self
, cvs_executable
, global_options
=None):
44 """Initialize a CVSRevisionReader.
46 CVS_EXECUTABLE is the CVS command (possibly including the full
47 path to the executable; otherwise it is sought in the $PATH).
48 GLOBAL_ARGUMENTS, if specified, should be a list of global options
49 that are passed to the CVS command before the subcommand. If
50 GLOBAL_ARGUMENTS is not specified, then each of the possibilities
51 listed in _possible_global_options is checked in order until one
52 is found that runs successfully and without any output to stderr."""
54 self
.cvs_executable
= cvs_executable
56 if global_options
is None:
57 for global_options
in self
._possible
_global
_options
:
59 self
._check
_cvs
_runs
(global_options
)
60 except CommandFailedException
, e
:
67 'Please check that cvs is installed and in your PATH.' % (e
,)
71 self
._check
_cvs
_runs
(global_options
)
72 except CommandFailedException
, e
:
75 'Please check that cvs is installed and in your PATH and that\n'
76 'the global options that you specified (%r) are correct.'
77 % (e
, global_options
,)
80 # The global options were OK; use them for all CVS invocations.
81 self
.global_options
= global_options
83 def _check_cvs_runs(self
, global_options
):
84 """Check that CVS can be started.
86 Try running 'cvs --version' with the current setting for
87 self.cvs_executable and the specified global_options. If not
88 successful, raise a CommandFailedException."""
91 [self
.cvs_executable
] + global_options
+ ['--version'],
95 def get_pipe_command(self
, cvs_rev
, k_option
):
96 project
= cvs_rev
.cvs_file
.project
99 ] + self
.global_options
+ [
100 '-d', ':local:' + project
.cvs_repository_root
,
105 project
.cvs_module
+ cvs_rev
.cvs_path