Mercurial > hg
annotate hgext/extdiff.py @ 5730:1542c4ce729b
bisect: rename autobad/good/next
author | Matt Mackall <mpm@selenic.com> |
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date | Thu, 27 Dec 2007 23:55:39 -0600 |
parents | 32ec518ee3cb |
children | e668fd796b8b |
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 ''' |
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9 The `extdiff' Mercurial extension allows you to use external programs |
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10 to compare revisions, or revision with working dir. The external diff |
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11 programs are called with a configurable set of options and two |
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12 non-option arguments: paths to directories containing snapshots of |
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13 files to compare. |
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14 |
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15 To enable this extension: |
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16 |
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17 [extensions] |
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18 hgext.extdiff = |
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19 |
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20 The `extdiff' extension also allows to configure new diff commands, so |
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21 you do not need to type "hg extdiff -p kdiff3" always. |
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22 |
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23 [extdiff] |
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24 # add new command that runs GNU diff(1) in 'context diff' mode |
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25 cdiff = gdiff -Nprc5 |
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26 ## or the old way: |
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27 #cmd.cdiff = gdiff |
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28 #opts.cdiff = -Nprc5 |
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29 |
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30 # add new command called vdiff, runs kdiff3 |
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31 vdiff = kdiff3 |
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32 |
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33 # add new command called meld, runs meld (no need to name twice) |
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34 meld = |
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35 |
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36 # add new command called vimdiff, runs gvimdiff with DirDiff plugin |
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37 #(see http://www.vim.org/scripts/script.php?script_id=102) |
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38 # Non english user, be sure to put "let g:DirDiffDynamicDiffText = 1" in |
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39 # your .vimrc |
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40 vimdiff = gvim -f '+next' '+execute "DirDiff" argv(0) argv(1)' |
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41 |
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42 You can use -I/-X and list of file or directory names like normal |
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43 "hg diff" command. The `extdiff' extension makes snapshots of only |
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44 needed files, so running the external diff program will actually be |
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45 pretty fast (at least faster than having to compare the entire tree). |
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46 ''' |
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47 |
3891 | 48 from mercurial.i18n import _ |
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49 from mercurial.node import * |
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50 from mercurial import cmdutil, util, commands |
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51 import os, shlex, shutil, tempfile |
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52 |
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53 def snapshot_node(ui, repo, files, node, tmproot): |
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54 '''snapshot files as of some revision''' |
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55 mf = repo.changectx(node).manifest() |
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56 dirname = os.path.basename(repo.root) |
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57 if dirname == "": |
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58 dirname = "root" |
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59 dirname = '%s.%s' % (dirname, short(node)) |
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60 base = os.path.join(tmproot, dirname) |
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61 os.mkdir(base) |
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62 ui.note(_('making snapshot of %d files from rev %s\n') % |
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63 (len(files), short(node))) |
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64 for fn in files: |
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65 if not fn in mf: |
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66 # skipping new file after a merge ? |
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67 continue |
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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 data = repo.wwritedata(wfn, repo.file(wfn).read(mf[wfn])) |
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75 open(dest, 'wb').write(data) |
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76 return dirname |
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77 |
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78 |
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79 def snapshot_wdir(ui, repo, files, tmproot): |
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80 '''snapshot files from working directory. |
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81 if not using snapshot, -I/-X does not work and recursive diff |
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82 in tools like kdiff3 and meld displays too many files.''' |
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83 dirname = os.path.basename(repo.root) |
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84 if dirname == "": |
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85 dirname = "root" |
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86 base = os.path.join(tmproot, dirname) |
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87 os.mkdir(base) |
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88 ui.note(_('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, 'wb') |
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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 |
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103 def dodiff(ui, repo, diffcmd, diffopts, pats, opts): |
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104 node1, node2 = cmdutil.revpair(repo, opts['rev']) |
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105 files, matchfn, anypats = cmdutil.matchpats(repo, pats, opts) |
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106 modified, added, removed, deleted, unknown = repo.status( |
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107 node1, node2, files, match=matchfn)[:5] |
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108 if not (modified or added or removed): |
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109 return 0 |
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110 |
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111 tmproot = tempfile.mkdtemp(prefix='extdiff.') |
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112 dir2root = '' |
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113 try: |
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114 # Always make a copy of node1 |
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115 dir1 = snapshot_node(ui, repo, modified + removed, node1, tmproot) |
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116 changes = len(modified) + len(removed) + len(added) |
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117 |
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118 # If node2 in not the wc or there is >1 change, copy it |
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119 if node2: |
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120 dir2 = snapshot_node(ui, repo, modified + added, node2, tmproot) |
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121 elif changes > 1: |
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122 dir2 = snapshot_wdir(ui, repo, modified + added, tmproot) |
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123 else: |
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124 # This lets the diff tool open the changed file directly |
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125 dir2 = '' |
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126 dir2root = repo.root |
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127 |
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128 # If only one change, diff the files instead of the directories |
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129 if changes == 1 : |
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130 if len(modified): |
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131 dir1 = os.path.join(dir1, util.localpath(modified[0])) |
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132 dir2 = os.path.join(dir2root, dir2, util.localpath(modified[0])) |
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133 elif len(removed) : |
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134 dir1 = os.path.join(dir1, util.localpath(removed[0])) |
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135 dir2 = os.devnull |
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136 else: |
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137 dir1 = os.devnull |
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138 dir2 = os.path.join(dir2root, dir2, util.localpath(added[0])) |
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139 |
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140 cmdline = ('%s %s %s %s' % |
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141 (util.shellquote(diffcmd), ' '.join(diffopts), |
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142 util.shellquote(dir1), util.shellquote(dir2))) |
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143 ui.debug('running %r in %s\n' % (cmdline, tmproot)) |
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144 util.system(cmdline, cwd=tmproot) |
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145 return 1 |
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146 finally: |
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147 ui.note(_('cleaning up temp directory\n')) |
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148 shutil.rmtree(tmproot) |
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149 |
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150 def extdiff(ui, repo, *pats, **opts): |
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151 '''use external program to diff repository (or selected files) |
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152 |
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153 Show differences between revisions for the specified files, using |
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154 an external program. The default program used is diff, with |
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155 default options "-Npru". |
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156 |
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157 To select a different program, use the -p option. The program |
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158 will be passed the names of two directories to compare. To pass |
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159 additional options to the program, use the -o option. These will |
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160 be passed before the names of the directories to compare. |
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161 |
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162 When two revision arguments are given, then changes are |
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163 shown between those revisions. If only one revision is |
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164 specified then that revision is compared to the working |
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165 directory, and, when no revisions are specified, the |
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166 working directory files are compared to its parent.''' |
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167 program = opts['program'] or 'diff' |
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168 if opts['program']: |
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169 option = opts['option'] |
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170 else: |
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171 option = opts['option'] or ['-Npru'] |
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172 return dodiff(ui, repo, program, option, pats, opts) |
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173 |
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174 cmdtable = { |
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175 "extdiff": |
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176 (extdiff, |
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177 [('p', 'program', '', _('comparison program to run')), |
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178 ('o', 'option', [], _('pass option to comparison program')), |
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179 ('r', 'rev', [], _('revision')), |
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180 ] + commands.walkopts, |
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181 _('hg extdiff [OPT]... [FILE]...')), |
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182 } |
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183 |
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184 def uisetup(ui): |
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185 for cmd, path in ui.configitems('extdiff'): |
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186 if cmd.startswith('cmd.'): |
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187 cmd = cmd[4:] |
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188 if not path: path = cmd |
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189 diffopts = ui.config('extdiff', 'opts.' + cmd, '') |
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190 diffopts = diffopts and [diffopts] or [] |
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191 elif cmd.startswith('opts.'): |
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192 continue |
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193 else: |
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194 # command = path opts |
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195 if path: |
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196 diffopts = shlex.split(path) |
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197 path = diffopts.pop(0) |
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198 else: |
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199 path, diffopts = cmd, [] |
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200 def save(cmd, path, diffopts): |
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201 '''use closure to save diff command to use''' |
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202 def mydiff(ui, repo, *pats, **opts): |
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203 return dodiff(ui, repo, path, diffopts, pats, opts) |
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204 mydiff.__doc__ = '''use %(path)s to diff repository (or selected files) |
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205 |
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206 Show differences between revisions for the specified |
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207 files, using the %(path)s program. |
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208 |
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209 When two revision arguments are given, then changes are |
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210 shown between those revisions. If only one revision is |
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211 specified then that revision is compared to the working |
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212 directory, and, when no revisions are specified, the |
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213 working directory files are compared to its parent.''' % { |
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214 'path': util.uirepr(path), |
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215 } |
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216 return mydiff |
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217 cmdtable[cmd] = (save(cmd, path, diffopts), |
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218 cmdtable['extdiff'][1][1:], |
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219 _('hg %s [OPTION]... [FILE]...') % cmd) |