1
# Bazaar-NG -- distributed version control
3
# Copyright (C) 2005 by Canonical Ltd
1
# Copyright (C) 2005, 2006 Canonical Ltd
5
3
# This program is free software; you can redistribute it and/or modify
6
4
# it under the terms of the GNU General Public License as published by
7
5
# the Free Software Foundation; either version 2 of the License, or
8
6
# (at your option) any later version.
10
8
# This program is distributed in the hope that it will be useful,
11
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
12
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13
11
# GNU General Public License for more details.
15
13
# You should have received a copy of the GNU General Public License
16
14
# along with this program; if not, write to the Free Software
17
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20
18
"""Commit message editor support."""
23
23
from subprocess import call
27
import bzrlib.config as config
24
28
from bzrlib.errors import BzrError
29
from bzrlib.trace import warning, mutter
27
33
"""Return a sequence of possible editor binaries for the current platform"""
28
from bzrlib.osutils import _read_config_value
30
e = _read_config_value("editor")
35
yield os.environ["BZR_EDITOR"]
39
e = config.GlobalConfig().get_editor()
35
yield os.environ["EDITOR"]
39
elif os.name == "posix":
43
for varname in 'VISUAL', 'EDITOR':
44
if varname in os.environ:
45
yield os.environ[varname]
47
if sys.platform == 'win32':
48
for editor in 'wordpad.exe', 'notepad.exe':
51
for editor in ['/usr/bin/editor', 'vi', 'pico', 'nano', 'joe']:
43
55
def _run_editor(filename):
44
56
"""Try to execute an editor to edit the commit message."""
45
57
for e in _get_editor():
46
58
edargs = e.split(' ')
47
x = call(edargs + [filename])
60
## mutter("trying editor: %r", (edargs +[filename]))
61
x = call(edargs + [filename])
63
# We're searching for an editor, so catch safe errors and continue
64
if e.errno in (errno.ENOENT, ):
54
raise BzrError("Could not start any editor. "
55
"Please specify $EDITOR or use ~/.bzr.conf/editor")
58
def edit_commit_message(infotext, ignoreline=None):
73
raise BzrError("Could not start any editor.\nPlease specify one with:\n"
74
" - $BZR_EDITOR\n - editor=/some/path in %s\n"
75
" - $VISUAL\n - $EDITOR" % \
76
config.config_filename())
79
DEFAULT_IGNORE_LINE = "%(bar)s %(msg)s %(bar)s" % \
80
{ 'bar' : '-' * 14, 'msg' : 'This line and the following will be ignored' }
83
def edit_commit_message(infotext, ignoreline=DEFAULT_IGNORE_LINE,
59
85
"""Let the user edit a commit message in a temp file.
61
87
This is run if they don't give a message or
62
88
message-containing file on the command line.
65
Text to be displayed at bottom of message for
66
the user's reference; currently similar to
90
:param infotext: Text to be displayed at bottom of message
91
for the user's reference;
92
currently similar to 'bzr status'.
94
:param ignoreline: The separator to use above the infotext.
96
:param start_message: The text to place above the separator, if any.
97
This will not be removed from the message
98
after the user has edited it.
100
:return: commit message or None.
71
if ignoreline is None:
72
ignoreline = "-- This line and the following will be ignored --"
75
tmp_fileno, msgfilename = tempfile.mkstemp()
76
msgfile = os.close(tmp_fileno)
77
if infotext is not None and infotext != "":
79
msgfile = file(msgfilename, "w")
80
msgfile.write("\n\n%s\n\n%s" % (ignoreline, infotext))
104
msgfilename, hasinfo = _create_temp_file_with_commit_template(
105
infotext, ignoreline, start_message)
85
if not _run_editor(msgfilename):
107
if not msgfilename or not _run_editor(msgfilename):
90
112
lastline, nlines = 0, 0
91
for line in file(msgfilename, "r"):
113
# codecs.open() ALWAYS opens file in binary mode but we need text mode
114
# 'rU' mode useful when bzr.exe used on Cygwin (bialix 20070430)
115
f = file(msgfilename, 'rU')
116
for line in codecs.getreader(bzrlib.user_encoding)(f):
92
117
stripped_line = line.strip()
93
118
# strip empty line before the log message starts
117
143
return "".join(msg)
119
145
# delete the msg file in any case
120
try: os.unlink(msgfilename)
146
if msgfilename is not None:
148
os.unlink(msgfilename)
150
warning("failed to unlink %s: %s; ignored", msgfilename, e)
153
def _create_temp_file_with_commit_template(infotext,
154
ignoreline=DEFAULT_IGNORE_LINE,
156
"""Create temp file and write commit template in it.
158
:param infotext: Text to be displayed at bottom of message
159
for the user's reference;
160
currently similar to 'bzr status'.
162
:param ignoreline: The separator to use above the infotext.
164
:param start_message: The text to place above the separator, if any.
165
This will not be removed from the message
166
after the user has edited it.
168
:return: 2-tuple (temp file name, hasinfo)
171
tmp_fileno, msgfilename = tempfile.mkstemp(prefix='bzr_log.',
174
msgfile = os.fdopen(tmp_fileno, 'w')
176
if start_message is not None:
177
msgfile.write("%s\n" % start_message.encode(
178
bzrlib.user_encoding, 'replace'))
180
if infotext is not None and infotext != "":
182
msgfile.write("\n\n%s\n\n%s" % (ignoreline,
183
infotext.encode(bzrlib.user_encoding,
190
return (msgfilename, hasinfo)
193
def make_commit_message_template(working_tree, specific_files):
194
"""Prepare a template file for a commit into a branch.
196
Returns a unicode string containing the template.
198
# TODO: Should probably be given the WorkingTree not the branch
200
# TODO: make provision for this to be overridden or modified by a hook
202
# TODO: Rather than running the status command, should prepare a draft of
203
# the revision to be committed, then pause and ask the user to
204
# confirm/write a message.
205
from StringIO import StringIO # must be unicode-safe
206
from bzrlib.status import show_tree_status
207
status_tmp = StringIO()
208
show_tree_status(working_tree, specific_files=specific_files,
210
return status_tmp.getvalue()