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annotate hgext/win32text.py @ 6212:e75aab656f46

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Remove unused imports
author Joel Rosdahl <joel@rosdahl.net>
date Thu, 06 Mar 2008 22:23:41 +0100
parents f89fd07fc51d
children 7f4257b5cbfc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # win32text.py - LF <-> CRLF translation utilities for Windows users
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2 #
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3 # This software may be used and distributed according to the terms
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4 # of the GNU General Public License, incorporated herein by reference.
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5 #
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6 # To perform automatic newline conversion, use:
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7 #
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8 # [extensions]
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9 # hgext.win32text =
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10 # [encode]
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11 # ** = cleverencode:
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12 # [decode]
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13 # ** = cleverdecode:
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14 #
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15 # If not doing conversion, to make sure you do not commit CRLF by accident:
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16 #
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17 # [hooks]
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18 # pretxncommit.crlf = python:hgext.win32text.forbidcrlf
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19 #
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20 # To do the same check on a server to prevent CRLF from being pushed or pulled:
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21 #
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22 # [hooks]
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23 # pretxnchangegroup.crlf = python:hgext.win32text.forbidcrlf
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24
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25 from mercurial.i18n import gettext as _
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26 from mercurial.node import bin, short
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27 import re
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28
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29 # regexp for single LF without CR preceding.
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30 re_single_lf = re.compile('(^|[^\r])\n', re.MULTILINE)
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31
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32 def dumbdecode(s, cmd, ui=None, repo=None, filename=None, **kwargs):
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33 # warn if already has CRLF in repository.
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34 # it might cause unexpected eol conversion.
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35 # see issue 302:
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36 # http://www.selenic.com/mercurial/bts/issue302
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37 if '\r\n' in s and ui and filename and repo:
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38 ui.warn(_('WARNING: %s already has CRLF line endings\n'
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39 'and does not need EOL conversion by the win32text plugin.\n'
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40 'Before your next commit, please reconsider your '
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41 'encode/decode settings in \nMercurial.ini or %s.\n') %
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42 (filename, repo.join('hgrc')))
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43 # replace single LF to CRLF
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44 return re_single_lf.sub('\\1\r\n', s)
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45
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46 def dumbencode(s, cmd):
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47 return s.replace('\r\n', '\n')
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48
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49 def clevertest(s, cmd):
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50 if '\0' in s: return False
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51 return True
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52
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53 def cleverdecode(s, cmd, **kwargs):
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54 if clevertest(s, cmd):
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55 return dumbdecode(s, cmd, **kwargs)
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56 return s
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57
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58 def cleverencode(s, cmd):
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59 if clevertest(s, cmd):
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60 return dumbencode(s, cmd)
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61 return s
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62
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63 _filters = {
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64 'dumbdecode:': dumbdecode,
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65 'dumbencode:': dumbencode,
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66 'cleverdecode:': cleverdecode,
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67 'cleverencode:': cleverencode,
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68 }
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69
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70 def forbidcrlf(ui, repo, hooktype, node, **kwargs):
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71 halt = False
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72 for rev in xrange(repo.changelog.rev(bin(node)), repo.changelog.count()):
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73 c = repo.changectx(rev)
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74 for f in c.files():
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75 if f not in c:
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76 continue
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77 data = c[f].data()
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78 if '\0' not in data and '\r\n' in data:
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79 if not halt:
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80 ui.warn(_('Attempt to commit or push text file(s) '
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81 'using CRLF line endings\n'))
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82 ui.warn(_('in %s: %s\n') % (short(c.node()), f))
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83 halt = True
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84 if halt and hooktype == 'pretxnchangegroup':
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85 ui.warn(_('\nTo prevent this mistake in your local repository,\n'
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86 'add to Mercurial.ini or .hg/hgrc:\n'
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87 '\n'
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88 '[hooks]\n'
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89 'pretxncommit.crlf = python:hgext.win32text.forbidcrlf\n'
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90 '\n'
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91 'and also consider adding:\n'
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92 '\n'
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93 '[extensions]\n'
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94 'hgext.win32text =\n'
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95 '[encode]\n'
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96 '** = cleverencode:\n'
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97 '[decode]\n'
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98 '** = cleverdecode:\n'))
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99 return halt
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100
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101 def reposetup(ui, repo):
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102 if not repo.local():
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103 return
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104 for name, fn in _filters.iteritems():
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105 repo.adddatafilter(name, fn)
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106