Mercurial > hg
annotate hgext/extdiff.py @ 37106:3d3cff1f6bde
histedit: make histedit's commands accept revsets (issue5746)
Earlier the code was only looking for rulehashes and neglecting
all other revision identifiers, this code intercepts the fromrule function
and calls scmutil.revsingle() on anything that is not a rulehash and then
obtains the rulehash from the changectx object returned, rest of the pipeline
follows as it was
Differential Revision: https://phab.mercurial-scm.org/D2394
author | Sangeet Kumar Mishra <mail2sangeetmishra@gmail.com> |
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date | Fri, 23 Feb 2018 11:48:58 +0530 |
parents | f0b6fbea00cf |
children | a8a902d7176e |
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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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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 |
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12 diff 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 you 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 meld, runs meld (no need to name twice). If |
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27 # the meld executable is not available, the meld tool in [merge-tools] |
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28 # will be used, if available |
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29 meld = |
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30 |
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31 # add new command called vimdiff, runs gvimdiff with DirDiff plugin |
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32 # (see http://www.vim.org/scripts/script.php?script_id=102) Non |
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33 # English user, be sure to put "let g:DirDiffDynamicDiffText = 1" in |
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34 # your .vimrc |
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35 vimdiff = gvim -f "+next" \\ |
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36 "+execute 'DirDiff' fnameescape(argv(0)) fnameescape(argv(1))" |
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37 |
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38 Tool arguments can include variables that are expanded at runtime:: |
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39 |
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40 $parent1, $plabel1 - filename, descriptive label of first parent |
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41 $child, $clabel - filename, descriptive label of child revision |
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42 $parent2, $plabel2 - filename, descriptive label of second parent |
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43 $root - repository root |
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44 $parent is an alias for $parent1. |
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45 |
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46 The extdiff extension will look in your [diff-tools] and [merge-tools] |
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47 sections for diff tool arguments, when none are specified in [extdiff]. |
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48 |
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49 :: |
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50 |
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51 [extdiff] |
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52 kdiff3 = |
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53 |
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54 [diff-tools] |
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55 kdiff3.diffargs=--L1 '$plabel1' --L2 '$clabel' $parent $child |
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56 |
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57 You can use -I/-X and list of file or directory names like normal |
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58 :hg:`diff` command. The extdiff extension makes snapshots of only |
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59 needed files, so running the external diff program will actually be |
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60 pretty fast (at least faster than having to compare the entire tree). |
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61 ''' |
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62 |
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63 from __future__ import absolute_import |
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64 |
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65 import os |
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66 import re |
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67 import shutil |
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68 import stat |
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69 import tempfile |
3891 | 70 from mercurial.i18n import _ |
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71 from mercurial.node import ( |
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72 nullid, |
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73 short, |
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74 ) |
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75 from mercurial import ( |
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76 archival, |
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77 cmdutil, |
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78 error, |
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79 filemerge, |
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80 pycompat, |
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81 registrar, |
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82 scmutil, |
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83 util, |
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84 ) |
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85 from mercurial.utils import ( |
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86 stringutil, |
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87 ) |
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88 |
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89 cmdtable = {} |
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90 command = registrar.command(cmdtable) |
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91 |
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92 configtable = {} |
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93 configitem = registrar.configitem(configtable) |
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94 |
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95 configitem('extdiff', br'opts\..*', |
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96 default='', |
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97 generic=True, |
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98 ) |
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99 |
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100 configitem('diff-tools', br'.*\.diffargs$', |
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101 default=None, |
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102 generic=True, |
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103 ) |
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104 |
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105 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for |
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106 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
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107 # be specifying the version(s) of Mercurial they are tested with, or |
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108 # leave the attribute unspecified. |
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109 testedwith = 'ships-with-hg-core' |
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110 |
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111 def snapshot(ui, repo, files, node, tmproot, listsubrepos): |
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112 '''snapshot files as of some revision |
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113 if not using snapshot, -I/-X does not work and recursive diff |
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114 in tools like kdiff3 and meld displays too many files.''' |
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115 dirname = os.path.basename(repo.root) |
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116 if dirname == "": |
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117 dirname = "root" |
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118 if node is not None: |
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119 dirname = '%s.%s' % (dirname, short(node)) |
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120 base = os.path.join(tmproot, dirname) |
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121 os.mkdir(base) |
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122 fnsandstat = [] |
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123 |
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124 if node is not None: |
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125 ui.note(_('making snapshot of %d files from rev %s\n') % |
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126 (len(files), short(node))) |
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127 else: |
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129 (len(files))) |
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130 |
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131 if files: |
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132 repo.ui.setconfig("ui", "archivemeta", False) |
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133 |
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134 archival.archive(repo, base, node, 'files', |
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135 matchfn=scmutil.matchfiles(repo, files), |
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136 subrepos=listsubrepos) |
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137 |
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138 for fn in sorted(files): |
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139 wfn = util.pconvert(fn) |
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140 ui.note(' %s\n' % wfn) |
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141 |
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142 if node is None: |
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143 dest = os.path.join(base, wfn) |
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144 |
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145 fnsandstat.append((dest, repo.wjoin(fn), os.lstat(dest))) |
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146 return dirname, fnsandstat |
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147 |
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148 def dodiff(ui, repo, cmdline, pats, opts): |
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149 '''Do the actual diff: |
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150 |
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151 - copy to a temp structure if diffing 2 internal revisions |
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152 - copy to a temp structure if diffing working revision with |
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153 another one and more than 1 file is changed |
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154 - just invoke the diff for a single file in the working dir |
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155 ''' |
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156 |
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157 revs = opts.get('rev') |
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158 change = opts.get('change') |
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159 do3way = '$parent2' in cmdline |
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160 |
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161 if revs and change: |
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162 msg = _('cannot specify --rev and --change at the same time') |
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163 raise error.Abort(msg) |
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164 elif change: |
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165 node2 = scmutil.revsingle(repo, change, None).node() |
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166 node1a, node1b = repo.changelog.parents(node2) |
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167 else: |
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168 node1a, node2 = scmutil.revpair(repo, revs) |
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169 if not revs: |
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170 node1b = repo.dirstate.p2() |
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171 else: |
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172 node1b = nullid |
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173 |
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174 # Disable 3-way merge if there is only one parent |
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175 if do3way: |
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176 if node1b == nullid: |
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177 do3way = False |
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178 |
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179 subrepos=opts.get('subrepos') |
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180 |
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181 matcher = scmutil.match(repo[node2], pats, opts) |
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182 |
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183 if opts.get('patch'): |
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184 if subrepos: |
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185 raise error.Abort(_('--patch cannot be used with --subrepos')) |
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186 if node2 is None: |
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187 raise error.Abort(_('--patch requires two revisions')) |
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188 else: |
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189 mod_a, add_a, rem_a = map(set, repo.status(node1a, node2, matcher, |
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190 listsubrepos=subrepos)[:3]) |
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191 if do3way: |
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192 mod_b, add_b, rem_b = map(set, |
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193 repo.status(node1b, node2, matcher, |
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194 listsubrepos=subrepos)[:3]) |
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195 else: |
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196 mod_b, add_b, rem_b = set(), set(), set() |
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197 modadd = mod_a | add_a | mod_b | add_b |
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198 common = modadd | rem_a | rem_b |
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199 if not common: |
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200 return 0 |
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|
201 |
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202 tmproot = tempfile.mkdtemp(prefix='extdiff.') |
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203 try: |
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204 if not opts.get('patch'): |
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205 # Always make a copy of node1a (and node1b, if applicable) |
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206 dir1a_files = mod_a | rem_a | ((mod_b | add_b) - add_a) |
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207 dir1a = snapshot(ui, repo, dir1a_files, node1a, tmproot, |
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208 subrepos)[0] |
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209 rev1a = '@%d' % repo[node1a].rev() |
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210 if do3way: |
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211 dir1b_files = mod_b | rem_b | ((mod_a | add_a) - add_b) |
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212 dir1b = snapshot(ui, repo, dir1b_files, node1b, tmproot, |
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213 subrepos)[0] |
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214 rev1b = '@%d' % repo[node1b].rev() |
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215 else: |
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216 dir1b = None |
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217 rev1b = '' |
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218 |
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219 fnsandstat = [] |
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220 |
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221 # If node2 in not the wc or there is >1 change, copy it |
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222 dir2root = '' |
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223 rev2 = '' |
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224 if node2: |
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225 dir2 = snapshot(ui, repo, modadd, node2, tmproot, subrepos)[0] |
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226 rev2 = '@%d' % repo[node2].rev() |
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227 elif len(common) > 1: |
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228 #we only actually need to get the files to copy back to |
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229 #the working dir in this case (because the other cases |
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230 #are: diffing 2 revisions or single file -- in which case |
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231 #the file is already directly passed to the diff tool). |
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232 dir2, fnsandstat = snapshot(ui, repo, modadd, None, tmproot, |
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233 subrepos) |
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234 else: |
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235 # This lets the diff tool open the changed file directly |
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236 dir2 = '' |
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237 dir2root = repo.root |
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238 |
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239 label1a = rev1a |
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240 label1b = rev1b |
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241 label2 = rev2 |
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242 |
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243 # If only one change, diff the files instead of the directories |
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244 # Handle bogus modifies correctly by checking if the files exist |
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245 if len(common) == 1: |
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246 common_file = util.localpath(common.pop()) |
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247 dir1a = os.path.join(tmproot, dir1a, common_file) |
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248 label1a = common_file + rev1a |
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249 if not os.path.isfile(dir1a): |
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250 dir1a = os.devnull |
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251 if do3way: |
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252 dir1b = os.path.join(tmproot, dir1b, common_file) |
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253 label1b = common_file + rev1b |
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254 if not os.path.isfile(dir1b): |
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255 dir1b = os.devnull |
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256 dir2 = os.path.join(dir2root, dir2, common_file) |
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257 label2 = common_file + rev2 |
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258 else: |
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259 template = 'hg-%h.patch' |
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260 cmdutil.export(repo, [repo[node1a].rev(), repo[node2].rev()], |
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261 fntemplate=repo.vfs.reljoin(tmproot, template), |
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262 match=matcher) |
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263 label1a = cmdutil.makefilename(repo[node1a], template) |
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264 label2 = cmdutil.makefilename(repo[node2], template) |
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265 dir1a = repo.vfs.reljoin(tmproot, label1a) |
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266 dir2 = repo.vfs.reljoin(tmproot, label2) |
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267 dir1b = None |
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268 label1b = None |
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269 fnsandstat = [] |
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270 |
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271 # Function to quote file/dir names in the argument string. |
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272 # When not operating in 3-way mode, an empty string is |
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273 # returned for parent2 |
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274 replace = {'parent': dir1a, 'parent1': dir1a, 'parent2': dir1b, |
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275 'plabel1': label1a, 'plabel2': label1b, |
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276 'clabel': label2, 'child': dir2, |
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277 'root': repo.root} |
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278 def quote(match): |
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279 pre = match.group(2) |
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280 key = match.group(3) |
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281 if not do3way and key == 'parent2': |
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282 return pre |
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283 return pre + util.shellquote(replace[key]) |
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284 |
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285 # Match parent2 first, so 'parent1?' will match both parent1 and parent |
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286 regex = (br'''(['"]?)([^\s'"$]*)''' |
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287 br'\$(parent2|parent1?|child|plabel1|plabel2|clabel|root)\1') |
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288 if not do3way and not re.search(regex, cmdline): |
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289 cmdline += ' $parent1 $child' |
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290 cmdline = re.sub(regex, quote, cmdline) |
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291 |
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292 ui.debug('running %r in %s\n' % (pycompat.bytestr(cmdline), tmproot)) |
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293 ui.system(cmdline, cwd=tmproot, blockedtag='extdiff') |
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294 |
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295 for copy_fn, working_fn, st in fnsandstat: |
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296 cpstat = os.lstat(copy_fn) |
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297 # Some tools copy the file and attributes, so mtime may not detect |
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298 # all changes. A size check will detect more cases, but not all. |
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299 # The only certain way to detect every case is to diff all files, |
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300 # which could be expensive. |
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301 # copyfile() carries over the permission, so the mode check could |
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302 # be in an 'elif' branch, but for the case where the file has |
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303 # changed without affecting mtime or size. |
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304 if (cpstat[stat.ST_MTIME] != st[stat.ST_MTIME] |
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305 or cpstat.st_size != st.st_size |
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306 or (cpstat.st_mode & 0o100) != (st.st_mode & 0o100)): |
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307 ui.debug('file changed while diffing. ' |
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308 'Overwriting: %s (src: %s)\n' % (working_fn, copy_fn)) |
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309 util.copyfile(copy_fn, working_fn) |
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310 |
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311 return 1 |
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312 finally: |
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313 ui.note(_('cleaning up temp directory\n')) |
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314 shutil.rmtree(tmproot) |
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315 |
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316 extdiffopts = [ |
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317 ('o', 'option', [], |
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318 _('pass option to comparison program'), _('OPT')), |
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319 ('r', 'rev', [], _('revision'), _('REV')), |
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320 ('c', 'change', '', _('change made by revision'), _('REV')), |
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321 ('', 'patch', None, _('compare patches for two revisions')) |
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322 ] + cmdutil.walkopts + cmdutil.subrepoopts |
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323 |
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324 @command('extdiff', |
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325 [('p', 'program', '', _('comparison program to run'), _('CMD')), |
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326 ] + extdiffopts, |
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327 _('hg extdiff [OPT]... [FILE]...'), |
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328 inferrepo=True) |
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329 def extdiff(ui, repo, *pats, **opts): |
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330 '''use external program to diff repository (or selected files) |
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331 |
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332 Show differences between revisions for the specified files, using |
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333 an external program. The default program used is diff, with |
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334 default options "-Npru". |
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335 |
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336 To select a different program, use the -p/--program option. The |
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337 program will be passed the names of two directories to compare. To |
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338 pass additional options to the program, use -o/--option. These |
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339 will be passed before the names of the directories to compare. |
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340 |
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341 When two revision arguments are given, then changes are shown |
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342 between those revisions. If only one revision is specified then |
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343 that revision is compared to the working directory, and, when no |
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344 revisions are specified, the working directory files are compared |
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345 to its parent.''' |
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346 opts = pycompat.byteskwargs(opts) |
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347 program = opts.get('program') |
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348 option = opts.get('option') |
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349 if not program: |
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350 program = 'diff' |
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351 option = option or ['-Npru'] |
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352 cmdline = ' '.join(map(util.shellquote, [program] + option)) |
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353 return dodiff(ui, repo, cmdline, pats, opts) |
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354 |
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355 class savedcmd(object): |
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356 """use external program to diff repository (or selected files) |
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357 |
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358 Show differences between revisions for the specified files, using |
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359 the following program:: |
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360 |
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361 %(path)s |
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362 |
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363 When two revision arguments are given, then changes are shown |
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364 between those revisions. If only one revision is specified then |
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365 that revision is compared to the working directory, and, when no |
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366 revisions are specified, the working directory files are compared |
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367 to its parent. |
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368 """ |
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369 |
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370 def __init__(self, path, cmdline): |
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371 # We can't pass non-ASCII through docstrings (and path is |
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372 # in an unknown encoding anyway) |
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373 docpath = stringutil.escapestr(path) |
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374 self.__doc__ %= {r'path': pycompat.sysstr(stringutil.uirepr(docpath))} |
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375 self._cmdline = cmdline |
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376 |
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377 def __call__(self, ui, repo, *pats, **opts): |
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378 opts = pycompat.byteskwargs(opts) |
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379 options = ' '.join(map(util.shellquote, opts['option'])) |
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380 if options: |
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381 options = ' ' + options |
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382 return dodiff(ui, repo, self._cmdline + options, pats, opts) |
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383 |
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384 def uisetup(ui): |
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385 for cmd, path in ui.configitems('extdiff'): |
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386 path = util.expandpath(path) |
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387 if cmd.startswith('cmd.'): |
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388 cmd = cmd[4:] |
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389 if not path: |
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390 path = util.findexe(cmd) |
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391 if path is None: |
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392 path = filemerge.findexternaltool(ui, cmd) or cmd |
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393 diffopts = ui.config('extdiff', 'opts.' + cmd) |
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394 cmdline = util.shellquote(path) |
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395 if diffopts: |
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396 cmdline += ' ' + diffopts |
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397 elif cmd.startswith('opts.'): |
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398 continue |
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399 else: |
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400 if path: |
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401 # case "cmd = path opts" |
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402 cmdline = path |
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403 diffopts = len(pycompat.shlexsplit(cmdline)) > 1 |
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404 else: |
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405 # case "cmd =" |
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406 path = util.findexe(cmd) |
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407 if path is None: |
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408 path = filemerge.findexternaltool(ui, cmd) or cmd |
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409 cmdline = util.shellquote(path) |
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410 diffopts = False |
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411 # look for diff arguments in [diff-tools] then [merge-tools] |
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412 if not diffopts: |
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413 args = ui.config('diff-tools', cmd+'.diffargs') or \ |
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414 ui.config('merge-tools', cmd+'.diffargs') |
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415 if args: |
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416 cmdline += ' ' + args |
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417 command(cmd, extdiffopts[:], _('hg %s [OPTION]... [FILE]...') % cmd, |
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418 inferrepo=True)(savedcmd(path, cmdline)) |
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419 |
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420 # tell hggettext to extract docstrings from these functions: |
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421 i18nfunctions = [savedcmd] |