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mircc/pybindgen/bzr-plugins/gnulog.py
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2021-06-20 13:39:17 +08:00

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Python

# Copyright (C) 2006-2009 Gustavo J. A. M. Carneiro <gjcarneiro@gmail.com>
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""
A bzr plugin that allows bzr log to output in GNU ChangeLog format.
Installation:
Copy this file to ~/.bazaar/plugins/
Usage:
bzr log -v --log-format 'gnu'
or,
BZR_GNULOG_SPLIT_ON_BLANK_LINES=0 bzr log -v --log-format 'gnu'
By default the log formatter recognizes paragraph boundaries as
empty lines (like in LaTeX). The environment variable
BZR_GNULOG_SPLIT_ON_BLANK_LINES=0 switches it to split paragraphs by
the newline character instead.
Changes:
- 2009-07-12: Missing supports_merge_revisions added, to also show
merged revisions from non-main branches
- 2009-06-24: handle get_apparent_author deprecation (based on patch by Zdenek Hatas)
- 2009-04-04: add option to recognize newlines as paragraph boundaries too
- 2009-04-04: recognize blank lines as paragraph boundaries, and don't mix paragraphs
- 2009-04-04: output text in default system encoding, not ascii
- 2008-12-08: include information of fixed bugs (bzr commit --fixes)
"""
import time
import textwrap
from StringIO import StringIO # note: we can't use cStringIO; it does not handle unicode well.
import sys
import os
import bzrlib.log
#from bzrlib.osutils import format_date
SPLIT_ON_BLANK_LINES = bool(int(os.environ.get('BZR_GNULOG_SPLIT_ON_BLANK_LINES', "1")))
class GnuFormatter(bzrlib.log.LogFormatter):
def __init__(self, *args, **kwargs):
bzrlib.log.LogFormatter.__init__(self, *args, **kwargs)
self._changes_buffer = StringIO()
self._date_line = None
self.supports_tags = True
self.supports_delta = True
self.supports_merge_revisions = True
def log_revision(self, lr):
self.show(lr.revno, lr.rev, lr.delta, lr.tags)
def show(self, revno, rev, delta, tags=None):
to_file = self.to_file
if tags is not None:
self._flush()
print >> to_file, u"=== %s ===" % ', '.join(tags)
date_str = time.strftime("%Y-%m-%d", time.localtime(rev.timestamp))
if hasattr(rev, "get_apparent_authors"):
author = "\n\t ".join(rev.get_apparent_authors())
else:
author = rev.get_apparent_author().strip()
date_line = date_str + " " + author
if date_line != self._date_line:
self._flush()
self._date_line = date_line
self._show_changes(revno, rev, delta)
def _flush(self):
if self._date_line is None or not self._changes_buffer.getvalue():
return
to_file = self.to_file
print >> to_file, self._date_line
print >> to_file
s = self._changes_buffer.getvalue()
to_file.write(s)
self._changes_buffer.truncate(0)
def begin_log(self):
pass
def end_log(self):
self._flush()
def __del__(self): # this is evil, I need bzr to call a method on me when it's finished..
self._flush()
def _split_message(self, message):
"""Split message into a shortlog plus list of paragraphs.
Paragraphs are identified by splitting the message where blank
lines appear, or simply where a newline appears, depending on
the SPLIT_ON_BLANK_LINES global variable.
returns: (shortlog, paragraph_list)
"""
lines = message.split('\n')
if lines:
# the first line is always the shortlog
shortlog = lines.pop(0)
# the second line may be empty to separate the shortlog from the detailed message
if lines and not lines[0]:
lines.pop(0)
else:
shortlog = u'(no commit message)'
if SPLIT_ON_BLANK_LINES:
paragraphs = []
current_paragraph = []
for line in lines:
if not line: # empty line marks the end of a paragraph
paragraphs.append('\n'.join(current_paragraph))
current_paragraph = []
else:
current_paragraph.append(line)
if current_paragraph:
paragraphs.append('\n'.join(current_paragraph))
return shortlog, paragraphs
else:
return shortlog, lines
def _show_changes(self, revno, rev, delta):
to_file = self._changes_buffer
output_standalone_message = True
shortlog, paragraphs = self._split_message(rev.message)
shortlog = u"[%s] %s" % (revno, shortlog)
bugs_text = rev.properties.get('bugs', '')
if bugs_text:
if shortlog[-1] in '.;':
shortlog = shortlog[:-1]
shortlog = u"%s; %s" % (shortlog, bugs_text)
if delta is not None:
## special case when only text modifications exist
if delta.modified and not (delta.added or delta.removed
or delta.renamed):
for num, (path, id, kind, text_modified, meta_modified) \
in enumerate(delta.modified):
if num == len(delta.modified) - 1:
for line in textwrap.wrap(
u"%s: %s" % (path, shortlog),
width=70,
initial_indent="* ",
subsequent_indent=""):
print >> to_file, u"\t" + line
else:
print >> to_file, u"\t* %s," % (path,)
if paragraphs:
print >> to_file
for parI, par in enumerate(paragraphs):
if par:
for l2 in textwrap.wrap(par, 70):
print >> to_file, u'\t' + l2
else:
if parI < (len(paragraphs)-1):
print >> to_file
if SPLIT_ON_BLANK_LINES:
print >> to_file
if not paragraphs or not SPLIT_ON_BLANK_LINES:
print >> to_file
output_standalone_message = False
else:
self._flush()
if delta.added:
for num, (path, id, kind) in enumerate(delta.added):
if num == len(delta.added) - 1:
print >> to_file, u"\t* %s: Added." % (path,)
print >> to_file
else:
print >> to_file, u"\t* %s," % (path,)
if delta.removed:
for num, (path, id, kind) in enumerate(delta.removed):
if num == len(delta.removed) - 1:
print >> to_file, u"\t* %s: Removed." % (path,)
print >> to_file
else:
print >> to_file, u"\t* %s," % (path,)
if delta.modified:
for num, (path, id, kind, text_modified, meta_modified) \
in enumerate(delta.modified):
if num == len(delta.modified) - 1:
print >> to_file, u"\t* %s: Modified." % (path,)
print >> to_file
else:
print >> to_file, u"\t* %s," % (path,)
if delta.renamed:
for (oldpath, newpath, id, kind,
text_modified, meta_modified) in delta.renamed:
if text_modified:
line = (u"%s: Renamed to %s and modified."\
% (oldpath, newpath))
else:
line = u"%s: Renamed to %s." % (oldpath, newpath)
for l1 in textwrap.wrap(line, 70,
initial_indent="* ",
subsequent_indent=" "):
print >> to_file, u"\t" + l1
print >> to_file
if output_standalone_message:
## The log message, on a line by itself
paragraphs.insert(0, shortlog)
for parI, par in enumerate(paragraphs):
if par:
for l2 in textwrap.wrap(par, 70):
print >> to_file, u'\t' + l2
else:
if parI < (len(paragraphs)-1):
print >> to_file
if SPLIT_ON_BLANK_LINES:
print >> to_file
if not SPLIT_ON_BLANK_LINES:
print >> to_file
self._flush()
bzrlib.log.register_formatter('gnu', GnuFormatter)