13
13
# You should have received a copy of the GNU General Public License
14
14
# along with this program; if not, write to the Free Software
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18
18
"""Commit message editor support."""
23
23
from subprocess import call
27
import bzrlib.config as config
28
from bzrlib import osutils
29
31
from bzrlib.errors import BzrError, BadCommitMessageEncoding
30
from bzrlib.trace import warning, mutter
32
from bzrlib.hooks import HookPoint, Hooks
34
36
"""Return a sequence of possible editor binaries for the current platform"""
36
yield os.environ["BZR_EDITOR"]
38
yield os.environ["BZR_EDITOR"], '$BZR_EDITOR'
40
42
e = config.GlobalConfig().get_editor()
44
yield e, config.config_filename()
44
46
for varname in 'VISUAL', 'EDITOR':
45
47
if varname in os.environ:
46
yield os.environ[varname]
48
yield os.environ[varname], '$' + varname
48
50
if sys.platform == 'win32':
49
51
for editor in 'wordpad.exe', 'notepad.exe':
52
54
for editor in ['/usr/bin/editor', 'vi', 'pico', 'nano', 'joe']:
56
58
def _run_editor(filename):
57
59
"""Try to execute an editor to edit the commit message."""
58
for e in _get_editor():
60
for candidate, candidate_source in _get_editor():
61
edargs = candidate.split(' ')
61
63
## mutter("trying editor: %r", (edargs +[filename]))
62
64
x = call(edargs + [filename])
64
66
# We're searching for an editor, so catch safe errors and continue
65
if e.errno in (errno.ENOENT, ):
67
if e.errno in (errno.ENOENT, errno.EACCES):
68
if candidate_source is not None:
69
# We tried this editor because some user configuration (an
70
# environment variable or config file) said to try it. Let
71
# the user know their configuration is broken.
73
'Could not start editor "%s" (specified by %s): %s\n'
74
% (candidate, candidate_source, str(e)))
104
113
if not start_message is None:
105
start_message = start_message.encode(bzrlib.user_encoding)
106
infotext = infotext.encode(bzrlib.user_encoding, 'replace')
114
start_message = start_message.encode(osutils.get_user_encoding())
115
infotext = infotext.encode(osutils.get_user_encoding(), 'replace')
107
116
return edit_commit_message_encoded(infotext, ignoreline, start_message)
144
153
f = file(msgfilename, 'rU')
147
for line in codecs.getreader(bzrlib.user_encoding)(f):
156
for line in codecs.getreader(osutils.get_user_encoding())(f):
148
157
stripped_line = line.strip()
149
158
# strip empty line before the log message starts
182
191
os.unlink(msgfilename)
183
192
except IOError, e:
184
warning("failed to unlink %s: %s; ignored", msgfilename, e)
194
"failed to unlink %s: %s; ignored", msgfilename, e)
187
197
def _create_temp_file_with_commit_template(infotext,
237
247
from StringIO import StringIO # must be unicode-safe
238
248
from bzrlib.status import show_tree_status
239
249
status_tmp = StringIO()
240
show_tree_status(working_tree, specific_files=specific_files,
250
show_tree_status(working_tree, specific_files=specific_files,
251
to_file=status_tmp, verbose=True)
242
252
return status_tmp.getvalue()
267
277
template = template + '\n' + stream.getvalue()
282
class MessageEditorHooks(Hooks):
283
"""A dictionary mapping hook name to a list of callables for message editor
286
e.g. ['commit_message_template'] is the list of items to be called to
287
generate a commit message template
291
"""Create the default hooks.
293
These are all empty initially.
296
self.create_hook(HookPoint('commit_message_template',
297
"Called when a commit message is being generated. "
298
"commit_message_template is called with the bzrlib.commit.Commit "
299
"object and the message that is known so far. "
300
"commit_message_template must return a new message to use (which "
301
"could be the same as it was given. When there are multiple "
302
"hooks registered for commit_message_template, they are chained "
303
"with the result from the first passed into the second, and so "
304
"on.", (1, 10), None))
307
hooks = MessageEditorHooks()
310
def generate_commit_message_template(commit, start_message=None):
311
"""Generate a commit message template.
313
:param commit: Commit object for the active commit.
314
:param start_message: Message to start with.
315
:return: A start commit message or None for an empty start commit message.
318
for hook in hooks['commit_message_template']:
319
start_message = hook(commit, start_message)