Mercurial > hg
annotate hgext/win32text.py @ 6206:0b6f12495276
fetch: switch the default parent used for a merge
This treats newly pulled changes as authoritative, and local changes as
the "satellite" changes.
The prior default behaviour is still available, via the --switch-parent
option.
author | Bryan O'Sullivan <bos@serpentine.com> |
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date | Wed, 05 Mar 2008 09:10:45 -0800 |
parents | f8ad3b76e923 |
children | f89fd07fc51d |
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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 import util, ui |
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26 from mercurial.i18n import gettext as _ |
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27 from mercurial.node import * |
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28 import re |
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29 |
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30 # regexp for single LF without CR preceding. |
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31 re_single_lf = re.compile('(^|[^\r])\n', re.MULTILINE) |
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32 |
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33 def dumbdecode(s, cmd, ui=None, repo=None, filename=None, **kwargs): |
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34 # warn if already has CRLF in repository. |
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35 # it might cause unexpected eol conversion. |
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36 # see issue 302: |
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37 # http://www.selenic.com/mercurial/bts/issue302 |
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38 if '\r\n' in s and ui and filename and repo: |
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39 ui.warn(_('WARNING: %s already has CRLF line endings\n' |
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40 'and does not need EOL conversion by the win32text plugin.\n' |
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41 'Before your next commit, please reconsider your ' |
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42 'encode/decode settings in \nMercurial.ini or %s.\n') % |
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43 (filename, repo.join('hgrc'))) |
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44 # replace single LF to CRLF |
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45 return re_single_lf.sub('\\1\r\n', s) |
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46 |
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47 def dumbencode(s, cmd): |
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48 return s.replace('\r\n', '\n') |
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49 |
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50 def clevertest(s, cmd): |
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51 if '\0' in s: return False |
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52 return True |
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53 |
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54 def cleverdecode(s, cmd, **kwargs): |
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55 if clevertest(s, cmd): |
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56 return dumbdecode(s, cmd, **kwargs) |
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57 return s |
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58 |
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59 def cleverencode(s, cmd): |
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60 if clevertest(s, cmd): |
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61 return dumbencode(s, cmd) |
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62 return s |
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63 |
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64 _filters = { |
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65 'dumbdecode:': dumbdecode, |
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66 'dumbencode:': dumbencode, |
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67 'cleverdecode:': cleverdecode, |
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68 'cleverencode:': cleverencode, |
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69 } |
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70 |
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71 def forbidcrlf(ui, repo, hooktype, node, **kwargs): |
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72 halt = False |
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73 for rev in xrange(repo.changelog.rev(bin(node)), repo.changelog.count()): |
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74 c = repo.changectx(rev) |
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75 for f in c.files(): |
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76 if f not in c: |
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77 continue |
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78 data = c[f].data() |
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79 if '\0' not in data and '\r\n' in data: |
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80 if not halt: |
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81 ui.warn(_('Attempt to commit or push text file(s) ' |
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82 'using CRLF line endings\n')) |
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83 ui.warn(_('in %s: %s\n') % (short(c.node()), f)) |
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84 halt = True |
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85 if halt and hooktype == 'pretxnchangegroup': |
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86 ui.warn(_('\nTo prevent this mistake in your local repository,\n' |
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87 'add to Mercurial.ini or .hg/hgrc:\n' |
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88 '\n' |
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89 '[hooks]\n' |
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90 'pretxncommit.crlf = python:hgext.win32text.forbidcrlf\n' |
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91 '\n' |
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92 'and also consider adding:\n' |
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93 '\n' |
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94 '[extensions]\n' |
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95 'hgext.win32text =\n' |
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96 '[encode]\n' |
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97 '** = cleverencode:\n' |
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98 '[decode]\n' |
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99 '** = cleverdecode:\n')) |
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100 return halt |
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101 |
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102 def reposetup(ui, repo): |
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103 if not repo.local(): |
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104 return |
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105 for name, fn in _filters.iteritems(): |
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106 repo.adddatafilter(name, fn) |
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107 |