Mercurial > hg
annotate hgext/extdiff.py @ 9021:2ccb527c7b1a
gendoc: fix localization of help topic
When a topic provides a callable method for its text, most likely
this text will be generated from different parts, so it does not
make sense to apply gettext on the whole result, rather the method
should provide translation by itself.
This is the case with the extensions topic, which triggers a double
gettext call, making the ASCII codec fail when it encounters 8 bit
characters, and prevents the documentation from being built.
author | Cédric Duval <cedricduval@free.fr> |
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date | Sat, 04 Jul 2009 12:12:36 +0200 |
parents | 9dda4c73fc3b |
children | 77324df822e2 0d3c1aa9d5de |
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 of the |
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6 # GNU General Public License version 2, incorporated herein by reference. |
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7 |
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8 '''command to allow external programs to compare revisions |
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9 |
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10 The `extdiff' Mercurial extension allows you to use external programs |
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11 to compare revisions, or revision with working directory. The external diff |
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12 programs are called with a configurable set of options and two |
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13 non-option arguments: paths to directories containing snapshots of |
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14 files to compare. |
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15 |
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16 The `extdiff' extension also allows to configure new diff commands, so |
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17 you do not need to type "hg extdiff -p kdiff3" always. |
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18 |
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19 [extdiff] |
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20 # add new command that runs GNU diff(1) in 'context diff' mode |
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21 cdiff = gdiff -Nprc5 |
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22 ## or the old way: |
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23 #cmd.cdiff = gdiff |
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24 #opts.cdiff = -Nprc5 |
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25 |
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26 # add new command called vdiff, runs kdiff3 |
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27 vdiff = kdiff3 |
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28 |
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29 # add new command called meld, runs meld (no need to name twice) |
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30 meld = |
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31 |
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32 # add new command called vimdiff, runs gvimdiff with DirDiff plugin |
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33 # (see http://www.vim.org/scripts/script.php?script_id=102) |
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34 # Non English user, be sure to put "let g:DirDiffDynamicDiffText = 1" in |
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35 # your .vimrc |
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36 vimdiff = gvim -f '+next' '+execute "DirDiff" argv(0) argv(1)' |
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37 |
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38 You can use -I/-X and list of file or directory names like normal "hg |
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39 diff" command. The `extdiff' extension makes snapshots of only needed |
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40 files, so running the external diff program will actually be pretty |
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41 fast (at least faster than having to compare the entire tree). |
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42 ''' |
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43 |
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45 from mercurial.node import short |
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46 from mercurial import cmdutil, util, commands |
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47 import os, shlex, shutil, tempfile |
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48 |
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49 def snapshot(ui, repo, files, node, tmproot): |
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50 '''snapshot files as of some revision |
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51 if not using snapshot, -I/-X does not work and recursive diff |
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52 in tools like kdiff3 and meld displays too many files.''' |
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53 dirname = os.path.basename(repo.root) |
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54 if dirname == "": |
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55 dirname = "root" |
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56 if node is not None: |
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57 dirname = '%s.%s' % (dirname, short(node)) |
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58 base = os.path.join(tmproot, dirname) |
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59 os.mkdir(base) |
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60 if node is not None: |
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61 ui.note(_('making snapshot of %d files from rev %s\n') % |
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62 (len(files), short(node))) |
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63 else: |
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65 (len(files))) |
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66 wopener = util.opener(base) |
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67 fns_and_mtime = [] |
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68 ctx = repo[node] |
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69 for fn in files: |
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70 wfn = util.pconvert(fn) |
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71 if not wfn in ctx: |
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72 # skipping new file after a merge ? |
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73 continue |
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74 ui.note(' %s\n' % wfn) |
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75 dest = os.path.join(base, wfn) |
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76 fctx = ctx[wfn] |
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77 data = repo.wwritedata(wfn, fctx.data()) |
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78 if 'l' in fctx.flags(): |
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79 wopener.symlink(data, wfn) |
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80 else: |
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81 wopener(wfn, 'w').write(data) |
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82 if 'x' in fctx.flags(): |
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83 util.set_flags(dest, False, True) |
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84 if node is None: |
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85 fns_and_mtime.append((dest, repo.wjoin(fn), os.path.getmtime(dest))) |
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86 return dirname, fns_and_mtime |
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87 |
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88 def dodiff(ui, repo, diffcmd, diffopts, pats, opts): |
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89 '''Do the actuall diff: |
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90 |
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91 - copy to a temp structure if diffing 2 internal revisions |
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92 - copy to a temp structure if diffing working revision with |
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93 another one and more than 1 file is changed |
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94 - just invoke the diff for a single file in the working dir |
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95 ''' |
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96 |
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97 revs = opts.get('rev') |
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98 change = opts.get('change') |
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99 |
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100 if revs and change: |
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101 msg = _('cannot specify --rev and --change at the same time') |
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102 raise util.Abort(msg) |
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103 elif change: |
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104 node2 = repo.lookup(change) |
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105 node1 = repo[node2].parents()[0].node() |
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106 else: |
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107 node1, node2 = cmdutil.revpair(repo, revs) |
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108 |
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109 matcher = cmdutil.match(repo, pats, opts) |
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110 modified, added, removed = repo.status(node1, node2, matcher)[:3] |
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111 if not (modified or added or removed): |
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112 return 0 |
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113 |
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114 tmproot = tempfile.mkdtemp(prefix='extdiff.') |
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115 dir2root = '' |
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116 try: |
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117 # Always make a copy of node1 |
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118 dir1 = snapshot(ui, repo, modified + removed, node1, tmproot)[0] |
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119 changes = len(modified) + len(removed) + len(added) |
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120 |
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121 # If node2 in not the wc or there is >1 change, copy it |
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122 if node2 or changes > 1: |
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123 dir2, fns_and_mtime = snapshot(ui, repo, modified + added, node2, tmproot) |
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124 else: |
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125 # This lets the diff tool open the changed file directly |
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126 dir2 = '' |
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127 dir2root = repo.root |
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128 fns_and_mtime = [] |
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129 |
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130 # If only one change, diff the files instead of the directories |
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131 if changes == 1 : |
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132 if len(modified): |
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133 dir1 = os.path.join(dir1, util.localpath(modified[0])) |
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134 dir2 = os.path.join(dir2root, dir2, util.localpath(modified[0])) |
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135 elif len(removed) : |
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136 dir1 = os.path.join(dir1, util.localpath(removed[0])) |
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137 dir2 = os.devnull |
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138 else: |
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139 dir1 = os.devnull |
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140 dir2 = os.path.join(dir2root, dir2, util.localpath(added[0])) |
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141 |
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142 cmdline = ('%s %s %s %s' % |
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143 (util.shellquote(diffcmd), ' '.join(diffopts), |
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144 util.shellquote(dir1), util.shellquote(dir2))) |
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145 ui.debug(_('running %r in %s\n') % (cmdline, tmproot)) |
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146 util.system(cmdline, cwd=tmproot) |
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147 |
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148 for copy_fn, working_fn, mtime in fns_and_mtime: |
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149 if os.path.getmtime(copy_fn) != mtime: |
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150 ui.debug(_('file changed while diffing. ' |
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151 'Overwriting: %s (src: %s)\n') % (working_fn, copy_fn)) |
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152 util.copyfile(copy_fn, working_fn) |
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153 |
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154 return 1 |
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155 finally: |
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156 ui.note(_('cleaning up temp directory\n')) |
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157 shutil.rmtree(tmproot) |
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158 |
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159 def extdiff(ui, repo, *pats, **opts): |
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160 '''use external program to diff repository (or selected files) |
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161 |
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162 Show differences between revisions for the specified files, using |
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163 an external program. The default program used is diff, with |
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164 default options "-Npru". |
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165 |
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166 To select a different program, use the -p/--program option. The |
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167 program will be passed the names of two directories to compare. To |
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168 pass additional options to the program, use -o/--option. These |
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169 will be passed before the names of the directories to compare. |
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170 |
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171 When two revision arguments are given, then changes are shown |
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172 between those revisions. If only one revision is specified then |
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173 that revision is compared to the working directory, and, when no |
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174 revisions are specified, the working directory files are compared |
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175 to its parent.''' |
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176 program = opts['program'] or 'diff' |
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177 if opts['program']: |
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178 option = opts['option'] |
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179 else: |
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180 option = opts['option'] or ['-Npru'] |
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181 return dodiff(ui, repo, program, option, pats, opts) |
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182 |
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183 cmdtable = { |
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184 "extdiff": |
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185 (extdiff, |
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186 [('p', 'program', '', _('comparison program to run')), |
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187 ('o', 'option', [], _('pass option to comparison program')), |
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188 ('r', 'rev', [], _('revision')), |
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189 ('c', 'change', '', _('change made by revision')), |
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190 ] + commands.walkopts, |
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191 _('hg extdiff [OPT]... [FILE]...')), |
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192 } |
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193 |
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194 def uisetup(ui): |
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195 for cmd, path in ui.configitems('extdiff'): |
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196 if cmd.startswith('cmd.'): |
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197 cmd = cmd[4:] |
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198 if not path: path = cmd |
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199 diffopts = ui.config('extdiff', 'opts.' + cmd, '') |
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200 diffopts = diffopts and [diffopts] or [] |
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201 elif cmd.startswith('opts.'): |
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202 continue |
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203 else: |
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204 # command = path opts |
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205 if path: |
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206 diffopts = shlex.split(path) |
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207 path = diffopts.pop(0) |
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208 else: |
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209 path, diffopts = cmd, [] |
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210 def save(cmd, path, diffopts): |
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211 '''use closure to save diff command to use''' |
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212 def mydiff(ui, repo, *pats, **opts): |
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213 return dodiff(ui, repo, path, diffopts, pats, opts) |
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214 mydiff.__doc__ = '''use %(path)s to diff repository (or selected files) |
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215 |
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216 Show differences between revisions for the specified |
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217 files, using the %(path)s program. |
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218 |
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219 When two revision arguments are given, then changes are |
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220 shown between those revisions. If only one revision is |
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221 specified then that revision is compared to the working |
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222 directory, and, when no revisions are specified, the |
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223 working directory files are compared to its parent.''' % { |
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224 'path': util.uirepr(path), |
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225 } |
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226 return mydiff |
2959
7f5fc4b347de
extdiff: make new diff commands pick up their options correctly
TK Soh <teekaysoh@yahoo.com>
parents:
2913
diff
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227 cmdtable[cmd] = (save(cmd, path, diffopts), |
2333
de0c05afa511
new extension: extdiff. allows to use external diff program.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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228 cmdtable['extdiff'][1][1:], |
4730
eadfaa9ec487
Updated command tables in commands.py and hgext extensions.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
4096
diff
changeset
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229 _('hg %s [OPTION]... [FILE]...') % cmd) |