Mercurial > hg > mercurial-crew-with-dirclash
annotate hgext/extdiff.py @ 3594:5f08389bcf06
merge with crew
author | Benoit Boissinot <benoit.boissinot@ens-lyon.org> |
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date | Tue, 31 Oct 2006 13:03:52 +0100 |
parents | 49966b5ab16f |
children | 67f44b825784 |
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 if not fn in mf: |
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69 # skipping new file after a merge ? |
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70 continue |
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71 wfn = util.pconvert(fn) |
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72 ui.note(' %s\n' % wfn) |
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73 dest = os.path.join(base, wfn) |
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74 destdir = os.path.dirname(dest) |
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75 if not os.path.isdir(destdir): |
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76 os.makedirs(destdir) |
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77 repo.wwrite(wfn, repo.file(fn).read(mf[fn]), open(dest, 'w')) |
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78 return dirname |
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79 |
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80 def snapshot_wdir(files): |
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81 '''snapshot files from working directory. |
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82 if not using snapshot, -I/-X does not work and recursive diff |
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83 in tools like kdiff3 and meld displays too many files.''' |
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84 dirname = os.path.basename(repo.root) |
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85 base = os.path.join(tmproot, dirname) |
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86 os.mkdir(base) |
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87 if not ui.quiet: |
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88 ui.write_err(_('making snapshot of %d files from working dir\n') % |
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89 (len(files))) |
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90 for fn in files: |
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91 wfn = util.pconvert(fn) |
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92 ui.note(' %s\n' % wfn) |
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93 dest = os.path.join(base, wfn) |
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94 destdir = os.path.dirname(dest) |
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95 if not os.path.isdir(destdir): |
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96 os.makedirs(destdir) |
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97 fp = open(dest, 'w') |
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98 for chunk in util.filechunkiter(repo.wopener(wfn)): |
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99 fp.write(chunk) |
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100 return dirname |
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101 |
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102 node1, node2 = cmdutil.revpair(ui, repo, opts['rev']) |
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103 files, matchfn, anypats = cmdutil.matchpats(repo, pats, opts) |
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104 modified, added, removed, deleted, unknown = repo.status( |
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105 node1, node2, files, match=matchfn)[:5] |
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106 if not (modified or added or removed): |
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107 return 0 |
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108 |
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109 tmproot = tempfile.mkdtemp(prefix='extdiff.') |
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110 try: |
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111 dir1 = snapshot_node(modified + removed, node1) |
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112 if node2: |
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113 dir2 = snapshot_node(modified + added, node2) |
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114 else: |
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115 dir2 = snapshot_wdir(modified + added) |
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116 cmdline = ('%s %s %s %s' % |
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117 (util.shellquote(diffcmd), ' '.join(diffopts), |
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118 util.shellquote(dir1), util.shellquote(dir2))) |
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119 ui.debug('running %r in %s\n' % (cmdline, tmproot)) |
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120 util.system(cmdline, cwd=tmproot) |
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121 return 1 |
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122 finally: |
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123 ui.note(_('cleaning up temp directory\n')) |
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124 shutil.rmtree(tmproot) |
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125 |
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126 def extdiff(ui, repo, *pats, **opts): |
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127 '''use external program to diff repository (or selected files) |
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128 |
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129 Show differences between revisions for the specified files, using |
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130 an external program. The default program used is diff, with |
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131 default options "-Npru". |
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132 |
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133 To select a different program, use the -p option. The program |
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134 will be passed the names of two directories to compare. To pass |
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135 additional options to the program, use the -o option. These will |
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136 be passed before the names of the directories to compare. |
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137 |
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138 When two revision arguments are given, then changes are |
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139 shown between those revisions. If only one revision is |
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140 specified then that revision is compared to the working |
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141 directory, and, when no revisions are specified, the |
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142 working directory files are compared to its parent.''' |
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143 program = opts['program'] or 'diff' |
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144 if opts['program']: |
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145 option = opts['option'] |
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146 else: |
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147 option = opts['option'] or ['-Npru'] |
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148 return dodiff(ui, repo, program, option, pats, opts) |
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149 |
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150 cmdtable = { |
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151 "extdiff": |
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152 (extdiff, |
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153 [('p', 'program', '', _('comparison program to run')), |
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154 ('o', 'option', [], _('pass option to comparison program')), |
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155 ('r', 'rev', [], _('revision')), |
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156 ('I', 'include', [], _('include names matching the given patterns')), |
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157 ('X', 'exclude', [], _('exclude names matching the given patterns'))], |
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158 _('hg extdiff [OPT]... [FILE]...')), |
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159 } |
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160 |
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161 def uisetup(ui): |
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162 for cmd, path in ui.configitems('extdiff'): |
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163 if not cmd.startswith('cmd.'): continue |
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164 cmd = cmd[4:] |
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165 if not path: path = cmd |
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166 diffopts = ui.config('extdiff', 'opts.' + cmd, '') |
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167 diffopts = diffopts and [diffopts] or [] |
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168 def save(cmd, path, diffopts): |
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169 '''use closure to save diff command to use''' |
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170 def mydiff(ui, repo, *pats, **opts): |
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171 return dodiff(ui, repo, path, diffopts, pats, opts) |
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172 mydiff.__doc__ = '''use %(path)r to diff repository (or selected files) |
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173 |
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174 Show differences between revisions for the specified |
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175 files, using the %(path)r program. |
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176 |
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177 When two revision arguments are given, then changes are |
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178 shown between those revisions. If only one revision is |
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179 specified then that revision is compared to the working |
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180 directory, and, when no revisions are specified, the |
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181 working directory files are compared to its parent.''' % { |
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182 'path': path, |
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183 } |
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184 return mydiff |
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185 cmdtable[cmd] = (save(cmd, path, diffopts), |
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186 cmdtable['extdiff'][1][1:], |
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187 _('hg %s [OPT]... [FILE]...') % cmd) |