win32text.py
106 lines
| 3.4 KiB
| text/x-python
|
PythonLexer
/ hgext / win32text.py
|
r5675 | # win32text.py - LF <-> CRLF translation utilities for Windows users | ||
# | ||||
# This software may be used and distributed according to the terms | ||||
# of the GNU General Public License, incorporated herein by reference. | ||||
# | ||||
# To perform automatic newline conversion, use: | ||||
# | ||||
# [extensions] | ||||
# hgext.win32text = | ||||
# [encode] | ||||
# ** = cleverencode: | ||||
# [decode] | ||||
# ** = cleverdecode: | ||||
# | ||||
# If not doing conversion, to make sure you do not commit CRLF by accident: | ||||
# | ||||
# [hooks] | ||||
# pretxncommit.crlf = python:hgext.win32text.forbidcrlf | ||||
# | ||||
# To do the same check on a server to prevent CRLF from being pushed or pulled: | ||||
# | ||||
# [hooks] | ||||
# pretxnchangegroup.crlf = python:hgext.win32text.forbidcrlf | ||||
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r4859 | from mercurial.i18n import gettext as _ | ||
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r6211 | from mercurial.node import bin, short | ||
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r4859 | import re | ||
# regexp for single LF without CR preceding. | ||||
re_single_lf = re.compile('(^|[^\r])\n', re.MULTILINE) | ||||
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r5967 | def dumbdecode(s, cmd, ui=None, repo=None, filename=None, **kwargs): | ||
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r4859 | # warn if already has CRLF in repository. | ||
# it might cause unexpected eol conversion. | ||||
# see issue 302: | ||||
# http://www.selenic.com/mercurial/bts/issue302 | ||||
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r5967 | if '\r\n' in s and ui and filename and repo: | ||
ui.warn(_('WARNING: %s already has CRLF line endings\n' | ||||
'and does not need EOL conversion by the win32text plugin.\n' | ||||
'Before your next commit, please reconsider your ' | ||||
'encode/decode settings in \nMercurial.ini or %s.\n') % | ||||
(filename, repo.join('hgrc'))) | ||||
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r4859 | # replace single LF to CRLF | ||
return re_single_lf.sub('\\1\r\n', s) | ||||
def dumbencode(s, cmd): | ||||
return s.replace('\r\n', '\n') | ||||
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r6473 | def clevertest(s, cmd): | ||
if '\0' in s: return False | ||||
return True | ||||
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r5967 | def cleverdecode(s, cmd, **kwargs): | ||
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r6473 | if clevertest(s, cmd): | ||
return dumbdecode(s, cmd, **kwargs) | ||||
return s | ||||
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r4859 | |||
def cleverencode(s, cmd): | ||||
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r6473 | if clevertest(s, cmd): | ||
return dumbencode(s, cmd) | ||||
return s | ||||
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r4859 | |||
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r5966 | _filters = { | ||
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r4859 | 'dumbdecode:': dumbdecode, | ||
'dumbencode:': dumbencode, | ||||
'cleverdecode:': cleverdecode, | ||||
'cleverencode:': cleverencode, | ||||
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r5966 | } | ||
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r5675 | |||
def forbidcrlf(ui, repo, hooktype, node, **kwargs): | ||||
halt = False | ||||
for rev in xrange(repo.changelog.rev(bin(node)), repo.changelog.count()): | ||||
c = repo.changectx(rev) | ||||
for f in c.files(): | ||||
if f not in c: | ||||
continue | ||||
data = c[f].data() | ||||
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r6473 | if '\0' not in data and '\r\n' in data: | ||
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r5675 | if not halt: | ||
ui.warn(_('Attempt to commit or push text file(s) ' | ||||
'using CRLF line endings\n')) | ||||
ui.warn(_('in %s: %s\n') % (short(c.node()), f)) | ||||
halt = True | ||||
if halt and hooktype == 'pretxnchangegroup': | ||||
ui.warn(_('\nTo prevent this mistake in your local repository,\n' | ||||
'add to Mercurial.ini or .hg/hgrc:\n' | ||||
'\n' | ||||
'[hooks]\n' | ||||
'pretxncommit.crlf = python:hgext.win32text.forbidcrlf\n' | ||||
'\n' | ||||
'and also consider adding:\n' | ||||
'\n' | ||||
'[extensions]\n' | ||||
'hgext.win32text =\n' | ||||
'[encode]\n' | ||||
'** = cleverencode:\n' | ||||
'[decode]\n' | ||||
'** = cleverdecode:\n')) | ||||
return halt | ||||
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r5966 | |||
def reposetup(ui, repo): | ||||
if not repo.local(): | ||||
return | ||||
for name, fn in _filters.iteritems(): | ||||
repo.adddatafilter(name, fn) | ||||