Mercurial > hg
annotate hgext/extdiff.py @ 23367:115af8de76a4
subrepo: add "_cachestorehashvfs" to handle cache store hash files via vfs
This "vfs" object will be used by subsequent patches to handle cache
store hash files without direct file APIs.
This patch decorates "_cachestorehashvfs" with "@propertycache" to
delay vfs creation, because it is used only for cooperation with other
repositories.
In this patch, "/" is used as the path separator, even though
"self._repo.join" uses platform specific path separator (e.g. "\\" on
Windows). But it is reasonable enough, because "store" and other
management file handling already include such implementation, and they
work well.
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
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date | Wed, 19 Nov 2014 18:35:14 +0900 |
parents | 41c03b7592ed |
children | 4075f2f8ea53 |
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 |
10263 | 6 # GNU General Public License version 2 or any later version. |
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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 |
3891 | 63 from mercurial.i18n import _ |
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64 from mercurial.node import short, nullid |
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65 from mercurial import cmdutil, scmutil, util, commands, encoding, filemerge |
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66 import os, shlex, shutil, tempfile, re |
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67 |
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68 cmdtable = {} |
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69 command = cmdutil.command(cmdtable) |
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70 testedwith = 'internal' |
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71 |
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72 def snapshot(ui, repo, files, node, tmproot): |
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73 '''snapshot files as of some revision |
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74 if not using snapshot, -I/-X does not work and recursive diff |
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75 in tools like kdiff3 and meld displays too many files.''' |
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76 dirname = os.path.basename(repo.root) |
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77 if dirname == "": |
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78 dirname = "root" |
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79 if node is not None: |
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80 dirname = '%s.%s' % (dirname, short(node)) |
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81 base = os.path.join(tmproot, dirname) |
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82 os.mkdir(base) |
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83 if node is not None: |
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84 ui.note(_('making snapshot of %d files from rev %s\n') % |
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85 (len(files), short(node))) |
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86 else: |
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88 (len(files))) |
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89 wopener = scmutil.opener(base) |
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90 fns_and_mtime = [] |
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91 ctx = repo[node] |
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92 for fn in sorted(files): |
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93 wfn = util.pconvert(fn) |
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94 if wfn not in ctx: |
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95 # File doesn't exist; could be a bogus modify |
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96 continue |
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97 ui.note(' %s\n' % wfn) |
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98 dest = os.path.join(base, wfn) |
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99 fctx = ctx[wfn] |
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100 data = repo.wwritedata(wfn, fctx.data()) |
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101 if 'l' in fctx.flags(): |
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102 wopener.symlink(data, wfn) |
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103 else: |
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104 wopener.write(wfn, data) |
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105 if 'x' in fctx.flags(): |
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106 util.setflags(dest, False, True) |
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107 if node is None: |
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108 fns_and_mtime.append((dest, repo.wjoin(fn), |
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109 os.lstat(dest).st_mtime)) |
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110 return dirname, fns_and_mtime |
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111 |
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112 def dodiff(ui, repo, diffcmd, diffopts, pats, opts): |
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113 '''Do the actual diff: |
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114 |
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115 - copy to a temp structure if diffing 2 internal revisions |
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116 - copy to a temp structure if diffing working revision with |
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117 another one and more than 1 file is changed |
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118 - just invoke the diff for a single file in the working dir |
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119 ''' |
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120 |
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121 revs = opts.get('rev') |
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122 change = opts.get('change') |
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123 args = ' '.join(map(util.shellquote, diffopts)) |
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124 do3way = '$parent2' in args |
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125 |
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126 if revs and change: |
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127 msg = _('cannot specify --rev and --change at the same time') |
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128 raise util.Abort(msg) |
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129 elif change: |
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130 node2 = scmutil.revsingle(repo, change, None).node() |
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131 node1a, node1b = repo.changelog.parents(node2) |
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132 else: |
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133 node1a, node2 = scmutil.revpair(repo, revs) |
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134 if not revs: |
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135 node1b = repo.dirstate.p2() |
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136 else: |
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137 node1b = nullid |
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138 |
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139 # Disable 3-way merge if there is only one parent |
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140 if do3way: |
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141 if node1b == nullid: |
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142 do3way = False |
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143 |
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144 matcher = scmutil.match(repo[node2], pats, opts) |
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145 mod_a, add_a, rem_a = map(set, repo.status(node1a, node2, matcher)[:3]) |
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146 if do3way: |
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147 mod_b, add_b, rem_b = map(set, repo.status(node1b, node2, matcher)[:3]) |
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148 else: |
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149 mod_b, add_b, rem_b = set(), set(), set() |
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150 modadd = mod_a | add_a | mod_b | add_b |
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151 common = modadd | rem_a | rem_b |
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152 if not common: |
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153 return 0 |
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154 |
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155 tmproot = tempfile.mkdtemp(prefix='extdiff.') |
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156 try: |
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157 # Always make a copy of node1a (and node1b, if applicable) |
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158 dir1a_files = mod_a | rem_a | ((mod_b | add_b) - add_a) |
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159 dir1a = snapshot(ui, repo, dir1a_files, node1a, tmproot)[0] |
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160 rev1a = '@%d' % repo[node1a].rev() |
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161 if do3way: |
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162 dir1b_files = mod_b | rem_b | ((mod_a | add_a) - add_b) |
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163 dir1b = snapshot(ui, repo, dir1b_files, node1b, tmproot)[0] |
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164 rev1b = '@%d' % repo[node1b].rev() |
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165 else: |
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166 dir1b = None |
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167 rev1b = '' |
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168 |
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169 fns_and_mtime = [] |
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170 |
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171 # If node2 in not the wc or there is >1 change, copy it |
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172 dir2root = '' |
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173 rev2 = '' |
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174 if node2: |
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175 dir2 = snapshot(ui, repo, modadd, node2, tmproot)[0] |
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176 rev2 = '@%d' % repo[node2].rev() |
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177 elif len(common) > 1: |
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178 #we only actually need to get the files to copy back to |
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179 #the working dir in this case (because the other cases |
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180 #are: diffing 2 revisions or single file -- in which case |
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181 #the file is already directly passed to the diff tool). |
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182 dir2, fns_and_mtime = snapshot(ui, repo, modadd, None, tmproot) |
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183 else: |
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184 # This lets the diff tool open the changed file directly |
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185 dir2 = '' |
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186 dir2root = repo.root |
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187 |
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188 label1a = rev1a |
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189 label1b = rev1b |
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190 label2 = rev2 |
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191 |
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192 # If only one change, diff the files instead of the directories |
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193 # Handle bogus modifies correctly by checking if the files exist |
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194 if len(common) == 1: |
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195 common_file = util.localpath(common.pop()) |
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196 dir1a = os.path.join(tmproot, dir1a, common_file) |
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197 label1a = common_file + rev1a |
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198 if not os.path.isfile(dir1a): |
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199 dir1a = os.devnull |
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200 if do3way: |
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201 dir1b = os.path.join(tmproot, dir1b, common_file) |
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202 label1b = common_file + rev1b |
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203 if not os.path.isfile(dir1b): |
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204 dir1b = os.devnull |
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205 dir2 = os.path.join(dir2root, dir2, common_file) |
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206 label2 = common_file + rev2 |
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207 |
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208 # Function to quote file/dir names in the argument string. |
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209 # When not operating in 3-way mode, an empty string is |
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210 # returned for parent2 |
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211 replace = {'parent': dir1a, 'parent1': dir1a, 'parent2': dir1b, |
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212 'plabel1': label1a, 'plabel2': label1b, |
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213 'clabel': label2, 'child': dir2, |
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214 'root': repo.root} |
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215 def quote(match): |
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216 key = match.group()[1:] |
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217 if not do3way and key == 'parent2': |
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218 return '' |
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219 return util.shellquote(replace[key]) |
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220 |
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221 # Match parent2 first, so 'parent1?' will match both parent1 and parent |
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222 regex = '\$(parent2|parent1?|child|plabel1|plabel2|clabel|root)' |
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223 if not do3way and not re.search(regex, args): |
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224 args += ' $parent1 $child' |
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225 args = re.sub(regex, quote, args) |
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226 cmdline = util.shellquote(diffcmd) + ' ' + args |
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227 |
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228 ui.debug('running %r in %s\n' % (cmdline, tmproot)) |
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229 ui.system(cmdline, cwd=tmproot) |
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230 |
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231 for copy_fn, working_fn, mtime in fns_and_mtime: |
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232 if os.lstat(copy_fn).st_mtime != mtime: |
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233 ui.debug('file changed while diffing. ' |
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234 'Overwriting: %s (src: %s)\n' % (working_fn, copy_fn)) |
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235 util.copyfile(copy_fn, working_fn) |
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236 |
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237 return 1 |
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238 finally: |
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239 ui.note(_('cleaning up temp directory\n')) |
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240 shutil.rmtree(tmproot) |
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241 |
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242 @command('extdiff', |
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243 [('p', 'program', '', |
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244 _('comparison program to run'), _('CMD')), |
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245 ('o', 'option', [], |
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246 _('pass option to comparison program'), _('OPT')), |
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247 ('r', 'rev', [], _('revision'), _('REV')), |
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248 ('c', 'change', '', _('change made by revision'), _('REV')), |
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249 ] + commands.walkopts, |
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250 _('hg extdiff [OPT]... [FILE]...'), |
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251 inferrepo=True) |
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252 def extdiff(ui, repo, *pats, **opts): |
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253 '''use external program to diff repository (or selected files) |
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254 |
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255 Show differences between revisions for the specified files, using |
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256 an external program. The default program used is diff, with |
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257 default options "-Npru". |
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258 |
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259 To select a different program, use the -p/--program option. The |
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260 program will be passed the names of two directories to compare. To |
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261 pass additional options to the program, use -o/--option. These |
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262 will be passed before the names of the directories to compare. |
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263 |
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264 When two revision arguments are given, then changes are shown |
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265 between those revisions. If only one revision is specified then |
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266 that revision is compared to the working directory, and, when no |
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267 revisions are specified, the working directory files are compared |
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268 to its parent.''' |
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269 program = opts.get('program') |
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270 option = opts.get('option') |
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271 if not program: |
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272 program = 'diff' |
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273 option = option or ['-Npru'] |
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274 return dodiff(ui, repo, program, option, pats, opts) |
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275 |
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276 def uisetup(ui): |
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277 for cmd, path in ui.configitems('extdiff'): |
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278 if cmd.startswith('cmd.'): |
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279 cmd = cmd[4:] |
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280 if not path: |
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281 path = util.findexe(cmd) |
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282 if path is None: |
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283 path = filemerge.findexternaltool(ui, cmd) or cmd |
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284 diffopts = shlex.split(ui.config('extdiff', 'opts.' + cmd, '')) |
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285 elif cmd.startswith('opts.'): |
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286 continue |
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287 else: |
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288 # command = path opts |
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289 if path: |
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290 diffopts = shlex.split(path) |
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291 path = diffopts.pop(0) |
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292 else: |
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293 path, diffopts = util.findexe(cmd), [] |
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294 if path is None: |
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295 path = filemerge.findexternaltool(ui, cmd) or cmd |
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296 # look for diff arguments in [diff-tools] then [merge-tools] |
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297 if diffopts == []: |
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298 args = ui.config('diff-tools', cmd+'.diffargs') or \ |
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299 ui.config('merge-tools', cmd+'.diffargs') |
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300 if args: |
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301 diffopts = shlex.split(args) |
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302 def save(cmd, path, diffopts): |
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303 '''use closure to save diff command to use''' |
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304 def mydiff(ui, repo, *pats, **opts): |
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305 return dodiff(ui, repo, path, diffopts + opts['option'], |
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306 pats, opts) |
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307 doc = _('''\ |
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308 use %(path)s to diff repository (or selected files) |
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309 |
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310 Show differences between revisions for the specified files, using |
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311 the %(path)s program. |
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312 |
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313 When two revision arguments are given, then changes are shown |
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314 between those revisions. If only one revision is specified then |
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315 that revision is compared to the working directory, and, when no |
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316 revisions are specified, the working directory files are compared |
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317 to its parent.\ |
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318 ''') % {'path': util.uirepr(path)} |
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319 |
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320 # We must translate the docstring right away since it is |
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321 # used as a format string. The string will unfortunately |
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322 # be translated again in commands.helpcmd and this will |
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323 # fail when the docstring contains non-ASCII characters. |
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324 # Decoding the string to a Unicode string here (using the |
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325 # right encoding) prevents that. |
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326 mydiff.__doc__ = doc.decode(encoding.encoding) |
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327 return mydiff |
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328 cmdtable[cmd] = (save(cmd, path, diffopts), |
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329 cmdtable['extdiff'][1][1:], |
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330 _('hg %s [OPTION]... [FILE]...') % cmd) |