Mercurial > hg > mercurial-crew-with-dirclash

annotate hgext/extdiff.py @ 2749:d13e4ffaa79d

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[darcs2hg] Windows compatibilty patct Originally submitted by Daiju Kito 1. single quote didn't work in several cases 2. os.unlink tries to delete tmpfile when it's called. It won't wait like unix.
author Sébastien Pierre <sebastien@xprima.com>
date Tue, 01 Aug 2006 09:51:36 -0400
parents d99a92b7acad
children 3d6efcbbd1c9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # extdiff.py - external diff program support for mercurial
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2 #
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3 # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
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4 #
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5 # This software may be used and distributed according to the terms
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6 # of the GNU General Public License, incorporated herein by reference.
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7 #
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8 # allow to use external programs to compare revisions, or revision
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9 # with working dir. program is called with two arguments: paths to
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10 # directories containing snapshots of files to compare.
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11 #
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12 # to enable:
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13 #
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14 # [extensions]
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15 # hgext.extdiff =
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16 #
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17 # also allows to configure new diff commands, so you do not need to
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18 # type "hg extdiff -p kdiff3" always.
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19 #
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20 # [extdiff]
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21 # # add new command called vdiff, runs kdiff3
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22 # cmd.vdiff = kdiff3
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23 # # add new command called meld, runs meld (no need to name twice)
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24 # cmd.meld =
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25 # # add new command called vimdiff, runs gvimdiff with DirDiff plugin
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26 # #(see http://www.vim.org/scripts/script.php?script_id=102)
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27 # cmd.vimdiff = LC_ALL=C gvim -f '+bdel 1 2' '+ execute "DirDiff ".argv(0)." ".argv(1)'
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28 #
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29 # you can use -I/-X and list of file or directory names like normal
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30 # "hg diff" command. extdiff makes snapshots of only needed files, so
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31 # compare program will be fast.
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32
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33 from mercurial.demandload import demandload
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34 from mercurial.i18n import gettext as _
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35 from mercurial.node import *
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36 demandload(globals(), 'mercurial:commands,util os shutil tempfile')
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37
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38 def dodiff(ui, repo, diffcmd, pats, opts):
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39 def snapshot_node(files, node):
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40 '''snapshot files as of some revision'''
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41 changes = repo.changelog.read(node)
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42 mf = repo.manifest.read(changes[0])
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43 dirname = '%s.%s' % (os.path.basename(repo.root), short(node))
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44 base = os.path.join(tmproot, dirname)
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45 os.mkdir(base)
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46 if not ui.quiet:
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47 ui.write_err(_('making snapshot of %d files from rev %s\n') %
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48 (len(files), short(node)))
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49 for fn in files:
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50 wfn = util.pconvert(fn)
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51 ui.note(' %s\n' % wfn)
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52 dest = os.path.join(base, wfn)
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53 destdir = os.path.dirname(dest)
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54 if not os.path.isdir(destdir):
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55 os.makedirs(destdir)
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56 repo.wwrite(wfn, repo.file(fn).read(mf[fn]), open(dest, 'w'))
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57 return dirname
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58
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59 def snapshot_wdir(files):
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60 '''snapshot files from working directory.
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61 if not using snapshot, -I/-X does not work and recursive diff
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62 in tools like kdiff3 and meld displays too many files.'''
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63 dirname = os.path.basename(repo.root)
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64 base = os.path.join(tmproot, dirname)
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65 os.mkdir(base)
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66 if not ui.quiet:
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67 ui.write_err(_('making snapshot of %d files from working dir\n') %
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68 (len(files)))
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69 for fn in files:
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70 wfn = util.pconvert(fn)
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71 ui.note(' %s\n' % wfn)
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72 dest = os.path.join(base, wfn)
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73 destdir = os.path.dirname(dest)
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74 if not os.path.isdir(destdir):
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75 os.makedirs(destdir)
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76 fp = open(dest, 'w')
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77 for chunk in util.filechunkiter(repo.wopener(wfn)):
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78 fp.write(chunk)
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79 return dirname
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80
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81 node1, node2 = commands.revpair(ui, repo, opts['rev'])
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82 files, matchfn, anypats = commands.matchpats(repo, pats, opts)
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83 modified, added, removed, deleted, unknown = repo.changes(
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84 node1, node2, files, match=matchfn)
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85 if not (modified or added or removed):
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86 return 0
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87
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88 tmproot = tempfile.mkdtemp(prefix='extdiff.')
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89 try:
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90 dir1 = snapshot_node(modified + removed, node1)
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91 if node2:
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92 dir2 = snapshot_node(modified + added, node2)
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93 else:
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94 dir2 = snapshot_wdir(modified + added)
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95 util.system('%s %s "%s" "%s"' %
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96 (diffcmd, ' '.join(opts['option']), dir1, dir2),
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97 cwd=tmproot)
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98 return 1
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99 finally:
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100 ui.note(_('cleaning up temp directory\n'))
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101 shutil.rmtree(tmproot)
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102
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103 def extdiff(ui, repo, *pats, **opts):
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104 '''use external program to diff repository (or selected files)
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105
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106 Show differences between revisions for the specified files, using
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107 an external program. The default program used is "diff -Npru".
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108 To select a different program, use the -p option. The program
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109 will be passed the names of two directories to compare. To pass
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110 additional options to the program, use the -o option. These will
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111 be passed before the names of the directories to compare.
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112
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113 When two revision arguments are given, then changes are
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114 shown between those revisions. If only one revision is
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115 specified then that revision is compared to the working
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116 directory, and, when no revisions are specified, the
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117 working directory files are compared to its parent.'''
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118 return dodiff(ui, repo, opts['program'] or 'diff -Npru', pats, opts)
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119
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120 cmdtable = {
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121 "extdiff":
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122 (extdiff,
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123 [('p', 'program', '', _('comparison program to run')),
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124 ('o', 'option', [], _('pass option to comparison program')),
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125 ('r', 'rev', [], _('revision')),
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126 ('I', 'include', [], _('include names matching the given patterns')),
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127 ('X', 'exclude', [], _('exclude names matching the given patterns'))],
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128 _('hg extdiff [OPT]... [FILE]...')),
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129 }
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130
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131 def uisetup(ui):
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132 for cmd, path in ui.configitems('extdiff'):
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133 if not cmd.startswith('cmd.'): continue
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134 cmd = cmd[4:]
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135 if not path: path = cmd
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136 def save(cmd, path):
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137 '''use closure to save diff command to use'''
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138 def mydiff(ui, repo, *pats, **opts):
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139 return dodiff(ui, repo, path, pats, opts)
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140 mydiff.__doc__ = '''use %s to diff repository (or selected files)
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141
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142 Show differences between revisions for the specified
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143 files, using the %s program.
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144
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145 When two revision arguments are given, then changes are
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146 shown between those revisions. If only one revision is
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147 specified then that revision is compared to the working
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148 directory, and, when no revisions are specified, the
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149 working directory files are compared to its parent.''' % (cmd, cmd)
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150 return mydiff
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151 cmdtable[cmd] = (save(cmd, path),
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152 cmdtable['extdiff'][1][1:],
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153 _('hg %s [OPT]... [FILE]...') % cmd)