Mercurial > hg
annotate hgext/extdiff.py @ 36220:874209855f5c
httppeer: remove httpspeer
All it did was verify at construction time that Mercurial supports
TLS. instance() is what's used to construct peer instances. So
we can just inline this check into that function and do away with
the type variant.
Differential Revision: https://phab.mercurial-scm.org/D2216
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Mon, 12 Feb 2018 17:14:29 -0800 |
parents | 33ed8b511185 |
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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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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 tempfile |
3891 | 69 from mercurial.i18n import _ |
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70 from mercurial.node import ( |
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71 nullid, |
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72 short, |
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73 ) |
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74 from mercurial import ( |
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75 archival, |
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76 cmdutil, |
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77 error, |
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78 filemerge, |
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79 pycompat, |
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80 registrar, |
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81 scmutil, |
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82 util, |
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83 ) |
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84 |
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85 cmdtable = {} |
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86 command = registrar.command(cmdtable) |
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87 |
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88 configtable = {} |
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89 configitem = registrar.configitem(configtable) |
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90 |
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91 configitem('extdiff', r'opts\..*', |
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92 default='', |
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93 generic=True, |
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94 ) |
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95 |
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96 configitem('diff-tools', r'.*\.diffargs$', |
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97 default=None, |
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98 generic=True, |
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99 ) |
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100 |
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101 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for |
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102 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
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103 # be specifying the version(s) of Mercurial they are tested with, or |
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104 # leave the attribute unspecified. |
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105 testedwith = 'ships-with-hg-core' |
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106 |
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107 def snapshot(ui, repo, files, node, tmproot, listsubrepos): |
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108 '''snapshot files as of some revision |
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109 if not using snapshot, -I/-X does not work and recursive diff |
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110 in tools like kdiff3 and meld displays too many files.''' |
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111 dirname = os.path.basename(repo.root) |
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112 if dirname == "": |
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113 dirname = "root" |
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114 if node is not None: |
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115 dirname = '%s.%s' % (dirname, short(node)) |
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116 base = os.path.join(tmproot, dirname) |
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117 os.mkdir(base) |
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118 fnsandstat = [] |
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119 |
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120 if node is not None: |
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121 ui.note(_('making snapshot of %d files from rev %s\n') % |
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122 (len(files), short(node))) |
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123 else: |
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125 (len(files))) |
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126 |
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127 if files: |
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128 repo.ui.setconfig("ui", "archivemeta", False) |
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129 |
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130 archival.archive(repo, base, node, 'files', |
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131 matchfn=scmutil.matchfiles(repo, files), |
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132 subrepos=listsubrepos) |
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133 |
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134 for fn in sorted(files): |
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135 wfn = util.pconvert(fn) |
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136 ui.note(' %s\n' % wfn) |
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137 |
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138 if node is None: |
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139 dest = os.path.join(base, wfn) |
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140 |
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141 fnsandstat.append((dest, repo.wjoin(fn), os.lstat(dest))) |
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142 return dirname, fnsandstat |
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143 |
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144 def dodiff(ui, repo, cmdline, pats, opts): |
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145 '''Do the actual diff: |
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146 |
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147 - copy to a temp structure if diffing 2 internal revisions |
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148 - copy to a temp structure if diffing working revision with |
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149 another one and more than 1 file is changed |
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150 - just invoke the diff for a single file in the working dir |
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151 ''' |
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152 |
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153 revs = opts.get('rev') |
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154 change = opts.get('change') |
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155 do3way = '$parent2' in cmdline |
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156 |
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157 if revs and change: |
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158 msg = _('cannot specify --rev and --change at the same time') |
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159 raise error.Abort(msg) |
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160 elif change: |
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161 node2 = scmutil.revsingle(repo, change, None).node() |
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162 node1a, node1b = repo.changelog.parents(node2) |
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163 else: |
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164 node1a, node2 = scmutil.revpair(repo, revs) |
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165 if not revs: |
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166 node1b = repo.dirstate.p2() |
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167 else: |
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168 node1b = nullid |
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169 |
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170 # Disable 3-way merge if there is only one parent |
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171 if do3way: |
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172 if node1b == nullid: |
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173 do3way = False |
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174 |
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175 subrepos=opts.get('subrepos') |
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176 |
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177 matcher = scmutil.match(repo[node2], pats, opts) |
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178 |
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179 if opts.get('patch'): |
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180 if subrepos: |
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181 raise error.Abort(_('--patch cannot be used with --subrepos')) |
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182 if node2 is None: |
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183 raise error.Abort(_('--patch requires two revisions')) |
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184 else: |
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185 mod_a, add_a, rem_a = map(set, repo.status(node1a, node2, matcher, |
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186 listsubrepos=subrepos)[:3]) |
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187 if do3way: |
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188 mod_b, add_b, rem_b = map(set, |
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189 repo.status(node1b, node2, matcher, |
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190 listsubrepos=subrepos)[:3]) |
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191 else: |
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192 mod_b, add_b, rem_b = set(), set(), set() |
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193 modadd = mod_a | add_a | mod_b | add_b |
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194 common = modadd | rem_a | rem_b |
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195 if not common: |
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196 return 0 |
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197 |
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198 tmproot = tempfile.mkdtemp(prefix='extdiff.') |
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199 try: |
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200 if not opts.get('patch'): |
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201 # Always make a copy of node1a (and node1b, if applicable) |
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202 dir1a_files = mod_a | rem_a | ((mod_b | add_b) - add_a) |
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203 dir1a = snapshot(ui, repo, dir1a_files, node1a, tmproot, |
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204 subrepos)[0] |
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205 rev1a = '@%d' % repo[node1a].rev() |
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206 if do3way: |
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207 dir1b_files = mod_b | rem_b | ((mod_a | add_a) - add_b) |
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208 dir1b = snapshot(ui, repo, dir1b_files, node1b, tmproot, |
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209 subrepos)[0] |
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210 rev1b = '@%d' % repo[node1b].rev() |
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211 else: |
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212 dir1b = None |
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213 rev1b = '' |
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214 |
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215 fnsandstat = [] |
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216 |
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217 # If node2 in not the wc or there is >1 change, copy it |
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218 dir2root = '' |
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219 rev2 = '' |
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220 if node2: |
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221 dir2 = snapshot(ui, repo, modadd, node2, tmproot, subrepos)[0] |
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222 rev2 = '@%d' % repo[node2].rev() |
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223 elif len(common) > 1: |
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224 #we only actually need to get the files to copy back to |
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225 #the working dir in this case (because the other cases |
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226 #are: diffing 2 revisions or single file -- in which case |
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227 #the file is already directly passed to the diff tool). |
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228 dir2, fnsandstat = snapshot(ui, repo, modadd, None, tmproot, |
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229 subrepos) |
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230 else: |
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231 # This lets the diff tool open the changed file directly |
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232 dir2 = '' |
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233 dir2root = repo.root |
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234 |
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235 label1a = rev1a |
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236 label1b = rev1b |
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237 label2 = rev2 |
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238 |
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239 # If only one change, diff the files instead of the directories |
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240 # Handle bogus modifies correctly by checking if the files exist |
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241 if len(common) == 1: |
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242 common_file = util.localpath(common.pop()) |
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243 dir1a = os.path.join(tmproot, dir1a, common_file) |
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244 label1a = common_file + rev1a |
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245 if not os.path.isfile(dir1a): |
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246 dir1a = os.devnull |
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247 if do3way: |
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248 dir1b = os.path.join(tmproot, dir1b, common_file) |
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249 label1b = common_file + rev1b |
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250 if not os.path.isfile(dir1b): |
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251 dir1b = os.devnull |
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252 dir2 = os.path.join(dir2root, dir2, common_file) |
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253 label2 = common_file + rev2 |
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254 else: |
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255 template = 'hg-%h.patch' |
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256 cmdutil.export(repo, [repo[node1a].rev(), repo[node2].rev()], |
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257 fntemplate=repo.vfs.reljoin(tmproot, template), |
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258 match=matcher) |
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259 label1a = cmdutil.makefilename(repo[node1a], template) |
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260 label2 = cmdutil.makefilename(repo[node2], template) |
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261 dir1a = repo.vfs.reljoin(tmproot, label1a) |
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262 dir2 = repo.vfs.reljoin(tmproot, label2) |
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263 dir1b = None |
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264 label1b = None |
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265 fnsandstat = [] |
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266 |
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267 # Function to quote file/dir names in the argument string. |
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268 # When not operating in 3-way mode, an empty string is |
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269 # returned for parent2 |
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270 replace = {'parent': dir1a, 'parent1': dir1a, 'parent2': dir1b, |
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271 'plabel1': label1a, 'plabel2': label1b, |
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272 'clabel': label2, 'child': dir2, |
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273 'root': repo.root} |
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274 def quote(match): |
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275 pre = match.group(2) |
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276 key = match.group(3) |
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277 if not do3way and key == 'parent2': |
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278 return pre |
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279 return pre + util.shellquote(replace[key]) |
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280 |
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281 # Match parent2 first, so 'parent1?' will match both parent1 and parent |
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282 regex = (r'''(['"]?)([^\s'"$]*)''' |
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283 r'\$(parent2|parent1?|child|plabel1|plabel2|clabel|root)\1') |
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284 if not do3way and not re.search(regex, cmdline): |
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285 cmdline += ' $parent1 $child' |
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286 cmdline = re.sub(regex, quote, cmdline) |
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287 |
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288 ui.debug('running %r in %s\n' % (cmdline, tmproot)) |
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289 ui.system(cmdline, cwd=tmproot, blockedtag='extdiff') |
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290 |
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291 for copy_fn, working_fn, st in fnsandstat: |
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292 cpstat = os.lstat(copy_fn) |
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293 # Some tools copy the file and attributes, so mtime may not detect |
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294 # all changes. A size check will detect more cases, but not all. |
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295 # The only certain way to detect every case is to diff all files, |
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296 # which could be expensive. |
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297 # copyfile() carries over the permission, so the mode check could |
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298 # be in an 'elif' branch, but for the case where the file has |
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299 # changed without affecting mtime or size. |
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300 if (cpstat.st_mtime != st.st_mtime or cpstat.st_size != st.st_size |
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301 or (cpstat.st_mode & 0o100) != (st.st_mode & 0o100)): |
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302 ui.debug('file changed while diffing. ' |
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303 'Overwriting: %s (src: %s)\n' % (working_fn, copy_fn)) |
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304 util.copyfile(copy_fn, working_fn) |
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305 |
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306 return 1 |
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307 finally: |
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308 ui.note(_('cleaning up temp directory\n')) |
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309 shutil.rmtree(tmproot) |
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310 |
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311 extdiffopts = [ |
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312 ('o', 'option', [], |
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313 _('pass option to comparison program'), _('OPT')), |
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314 ('r', 'rev', [], _('revision'), _('REV')), |
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315 ('c', 'change', '', _('change made by revision'), _('REV')), |
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316 ('', 'patch', None, _('compare patches for two revisions')) |
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317 ] + cmdutil.walkopts + cmdutil.subrepoopts |
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318 |
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319 @command('extdiff', |
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320 [('p', 'program', '', _('comparison program to run'), _('CMD')), |
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321 ] + extdiffopts, |
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322 _('hg extdiff [OPT]... [FILE]...'), |
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323 inferrepo=True) |
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324 def extdiff(ui, repo, *pats, **opts): |
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325 '''use external program to diff repository (or selected files) |
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326 |
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327 Show differences between revisions for the specified files, using |
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328 an external program. The default program used is diff, with |
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329 default options "-Npru". |
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330 |
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331 To select a different program, use the -p/--program option. The |
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332 program will be passed the names of two directories to compare. To |
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333 pass additional options to the program, use -o/--option. These |
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334 will be passed before the names of the directories to compare. |
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335 |
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336 When two revision arguments are given, then changes are shown |
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337 between those revisions. If only one revision is specified then |
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338 that revision is compared to the working directory, and, when no |
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339 revisions are specified, the working directory files are compared |
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340 to its parent.''' |
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341 opts = pycompat.byteskwargs(opts) |
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342 program = opts.get('program') |
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343 option = opts.get('option') |
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344 if not program: |
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345 program = 'diff' |
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346 option = option or ['-Npru'] |
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347 cmdline = ' '.join(map(util.shellquote, [program] + option)) |
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348 return dodiff(ui, repo, cmdline, pats, opts) |
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349 |
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350 class savedcmd(object): |
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351 """use external program to diff repository (or selected files) |
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352 |
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353 Show differences between revisions for the specified files, using |
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354 the following program:: |
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355 |
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356 %(path)s |
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357 |
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358 When two revision arguments are given, then changes are shown |
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359 between those revisions. If only one revision is specified then |
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360 that revision is compared to the working directory, and, when no |
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361 revisions are specified, the working directory files are compared |
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362 to its parent. |
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363 """ |
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364 |
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365 def __init__(self, path, cmdline): |
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366 # We can't pass non-ASCII through docstrings (and path is |
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367 # in an unknown encoding anyway) |
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368 docpath = util.escapestr(path) |
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369 self.__doc__ = self.__doc__ % {'path': util.uirepr(docpath)} |
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370 self._cmdline = cmdline |
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371 |
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372 def __call__(self, ui, repo, *pats, **opts): |
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373 opts = pycompat.byteskwargs(opts) |
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374 options = ' '.join(map(util.shellquote, opts['option'])) |
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375 if options: |
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376 options = ' ' + options |
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377 return dodiff(ui, repo, self._cmdline + options, pats, opts) |
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378 |
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379 def uisetup(ui): |
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380 for cmd, path in ui.configitems('extdiff'): |
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381 path = util.expandpath(path) |
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382 if cmd.startswith('cmd.'): |
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383 cmd = cmd[4:] |
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384 if not path: |
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385 path = util.findexe(cmd) |
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386 if path is None: |
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387 path = filemerge.findexternaltool(ui, cmd) or cmd |
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388 diffopts = ui.config('extdiff', 'opts.' + cmd) |
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389 cmdline = util.shellquote(path) |
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390 if diffopts: |
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391 cmdline += ' ' + diffopts |
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392 elif cmd.startswith('opts.'): |
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393 continue |
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394 else: |
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395 if path: |
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396 # case "cmd = path opts" |
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397 cmdline = path |
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398 diffopts = len(pycompat.shlexsplit(cmdline)) > 1 |
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399 else: |
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400 # case "cmd =" |
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401 path = util.findexe(cmd) |
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402 if path is None: |
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403 path = filemerge.findexternaltool(ui, cmd) or cmd |
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404 cmdline = util.shellquote(path) |
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405 diffopts = False |
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406 # look for diff arguments in [diff-tools] then [merge-tools] |
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407 if not diffopts: |
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408 args = ui.config('diff-tools', cmd+'.diffargs') or \ |
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409 ui.config('merge-tools', cmd+'.diffargs') |
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410 if args: |
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411 cmdline += ' ' + args |
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412 command(cmd, extdiffopts[:], _('hg %s [OPTION]... [FILE]...') % cmd, |
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413 inferrepo=True)(savedcmd(path, cmdline)) |
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414 |
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415 # tell hggettext to extract docstrings from these functions: |
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416 i18nfunctions = [savedcmd] |