Mercurial > hg > mercurial-crew-with-dirclash
annotate hgext/extdiff.py @ 3295:764688cf51e5
merge: remember rename copies and parents properly on commit
record copies in dirstate even if rename was remote
this lets us record it properly at commit
teach checkfilemerge about copies, including merge cases
pull old copy code out of commit
extend rename-merge1 test to show file index
author | Matt Mackall <mpm@selenic.com> |
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date | Sun, 08 Oct 2006 19:57:45 -0500 |
parents | f145d04899d2 |
children | 49966b5ab16f |
rev | line source |
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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 # The `extdiff' Mercurial extension allows you to use external programs |
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9 # to compare revisions, or revision with working dir. The external diff |
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10 # programs are called with a configurable set of options and two |
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11 # non-option arguments: paths to directories containing snapshots of |
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12 # files to compare. |
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13 # |
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14 # To enable this extension: |
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15 # |
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16 # [extensions] |
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17 # hgext.extdiff = |
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18 # |
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19 # The `extdiff' extension also allows to configure new diff commands, so |
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20 # you do not need to type "hg extdiff -p kdiff3" always. |
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21 # |
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22 # [extdiff] |
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23 # # add new command that runs GNU diff(1) in 'context diff' mode |
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24 # cmd.cdiff = gdiff |
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25 # opts.cdiff = -Nprc5 |
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26 |
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27 # # add new command called vdiff, runs kdiff3 |
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28 # cmd.vdiff = kdiff3 |
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29 |
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30 # # add new command called meld, runs meld (no need to name twice) |
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31 # cmd.meld = |
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32 |
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33 # # add new command called vimdiff, runs gvimdiff with DirDiff plugin |
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34 # #(see http://www.vim.org/scripts/script.php?script_id=102) |
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35 # # Non english user, be sure to put "let g:DirDiffDynamicDiffText = 1" in |
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36 # # your .vimrc |
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37 # cmd.vimdiff = gvim |
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38 # opts.vimdiff = -f '+next' '+execute "DirDiff" argv(0) argv(1)' |
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39 # |
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40 # Each custom diff commands can have two parts: a `cmd' and an `opts' |
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41 # part. The cmd.xxx option defines the name of an executable program |
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42 # that will be run, and opts.xxx defines a set of command-line options |
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43 # which will be inserted to the command between the program name and |
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44 # the files/directories to diff (i.e. the cdiff example above). |
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45 # |
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46 # You can use -I/-X and list of file or directory names like normal |
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47 # "hg diff" command. The `extdiff' extension makes snapshots of only |
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48 # needed files, so running the external diff program will actually be |
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49 # pretty fast (at least faster than having to compare the entire tree). |
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50 |
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51 from mercurial.demandload import demandload |
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52 from mercurial.i18n import gettext as _ |
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53 from mercurial.node import * |
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54 demandload(globals(), 'mercurial:cmdutil,util os shutil tempfile') |
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55 |
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56 def dodiff(ui, repo, diffcmd, diffopts, pats, opts): |
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57 def snapshot_node(files, node): |
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58 '''snapshot files as of some revision''' |
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59 changes = repo.changelog.read(node) |
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60 mf = repo.manifest.read(changes[0]) |
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61 dirname = '%s.%s' % (os.path.basename(repo.root), short(node)) |
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62 base = os.path.join(tmproot, dirname) |
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63 os.mkdir(base) |
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64 if not ui.quiet: |
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65 ui.write_err(_('making snapshot of %d files from rev %s\n') % |
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66 (len(files), short(node))) |
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67 for fn in files: |
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68 wfn = util.pconvert(fn) |
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69 ui.note(' %s\n' % wfn) |
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70 dest = os.path.join(base, wfn) |
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71 destdir = os.path.dirname(dest) |
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72 if not os.path.isdir(destdir): |
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73 os.makedirs(destdir) |
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74 repo.wwrite(wfn, repo.file(fn).read(mf[fn]), open(dest, 'w')) |
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75 return dirname |
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76 |
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77 def snapshot_wdir(files): |
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78 '''snapshot files from working directory. |
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79 if not using snapshot, -I/-X does not work and recursive diff |
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80 in tools like kdiff3 and meld displays too many files.''' |
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81 dirname = os.path.basename(repo.root) |
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82 base = os.path.join(tmproot, dirname) |
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83 os.mkdir(base) |
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84 if not ui.quiet: |
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85 ui.write_err(_('making snapshot of %d files from working dir\n') % |
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86 (len(files))) |
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87 for fn in files: |
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88 wfn = util.pconvert(fn) |
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89 ui.note(' %s\n' % wfn) |
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90 dest = os.path.join(base, wfn) |
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91 destdir = os.path.dirname(dest) |
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92 if not os.path.isdir(destdir): |
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93 os.makedirs(destdir) |
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94 fp = open(dest, 'w') |
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95 for chunk in util.filechunkiter(repo.wopener(wfn)): |
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96 fp.write(chunk) |
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97 return dirname |
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98 |
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99 node1, node2 = cmdutil.revpair(ui, repo, opts['rev']) |
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100 files, matchfn, anypats = cmdutil.matchpats(repo, pats, opts) |
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101 modified, added, removed, deleted, unknown = repo.status( |
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102 node1, node2, files, match=matchfn)[:5] |
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103 if not (modified or added or removed): |
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104 return 0 |
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105 |
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106 tmproot = tempfile.mkdtemp(prefix='extdiff.') |
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107 try: |
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108 dir1 = snapshot_node(modified + removed, node1) |
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109 if node2: |
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110 dir2 = snapshot_node(modified + added, node2) |
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111 else: |
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112 dir2 = snapshot_wdir(modified + added) |
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113 cmdline = ('%s %s %s %s' % |
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114 (util.shellquote(diffcmd), ' '.join(diffopts), |
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115 util.shellquote(dir1), util.shellquote(dir2))) |
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116 ui.debug('running %r in %s\n' % (cmdline, tmproot)) |
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117 util.system(cmdline, cwd=tmproot) |
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118 return 1 |
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119 finally: |
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120 ui.note(_('cleaning up temp directory\n')) |
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121 shutil.rmtree(tmproot) |
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122 |
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123 def extdiff(ui, repo, *pats, **opts): |
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124 '''use external program to diff repository (or selected files) |
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125 |
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126 Show differences between revisions for the specified files, using |
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127 an external program. The default program used is diff, with |
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128 default options "-Npru". |
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129 |
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130 To select a different program, use the -p option. The program |
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131 will be passed the names of two directories to compare. To pass |
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132 additional options to the program, use the -o option. These will |
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133 be passed before the names of the directories to compare. |
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134 |
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135 When two revision arguments are given, then changes are |
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136 shown between those revisions. If only one revision is |
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137 specified then that revision is compared to the working |
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138 directory, and, when no revisions are specified, the |
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139 working directory files are compared to its parent.''' |
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140 program = opts['program'] or 'diff' |
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141 if opts['program']: |
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142 option = opts['option'] |
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143 else: |
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144 option = opts['option'] or ['-Npru'] |
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145 return dodiff(ui, repo, program, option, pats, opts) |
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146 |
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147 cmdtable = { |
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148 "extdiff": |
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149 (extdiff, |
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150 [('p', 'program', '', _('comparison program to run')), |
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151 ('o', 'option', [], _('pass option to comparison program')), |
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152 ('r', 'rev', [], _('revision')), |
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153 ('I', 'include', [], _('include names matching the given patterns')), |
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154 ('X', 'exclude', [], _('exclude names matching the given patterns'))], |
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155 _('hg extdiff [OPT]... [FILE]...')), |
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156 } |
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157 |
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158 def uisetup(ui): |
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159 for cmd, path in ui.configitems('extdiff'): |
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160 if not cmd.startswith('cmd.'): continue |
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161 cmd = cmd[4:] |
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162 if not path: path = cmd |
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163 diffopts = ui.config('extdiff', 'opts.' + cmd, '') |
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164 diffopts = diffopts and [diffopts] or [] |
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165 def save(cmd, path, diffopts): |
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166 '''use closure to save diff command to use''' |
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167 def mydiff(ui, repo, *pats, **opts): |
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168 return dodiff(ui, repo, path, diffopts, pats, opts) |
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169 mydiff.__doc__ = '''use %(path)r to diff repository (or selected files) |
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170 |
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171 Show differences between revisions for the specified |
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172 files, using the %(path)r program. |
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173 |
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174 When two revision arguments are given, then changes are |
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175 shown between those revisions. If only one revision is |
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176 specified then that revision is compared to the working |
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177 directory, and, when no revisions are specified, the |
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178 working directory files are compared to its parent.''' % { |
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179 'path': path, |
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180 } |
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181 return mydiff |
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182 cmdtable[cmd] = (save(cmd, path, diffopts), |
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183 cmdtable['extdiff'][1][1:], |
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184 _('hg %s [OPT]... [FILE]...') % cmd) |