Mercurial > hg
annotate hgext/extdiff.py @ 11678:f5aa20e177c0 stable
keyword: move collecting of [keyword] patterns to reposetup (issue2303)
When cloning, prevent [keyword] filename patterns configured locally
in the source directory to persist during the update in the destination.
a) move [keyword] retrieval (back) to reposetup
b) remove the corresponding global kwtools attributes
Add test cases.
author | Christian Ebert <blacktrash@gmx.net> |
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date | Sun, 25 Jul 2010 20:01:33 -0500 |
parents | 40c06bbf58be |
children | a56c1b2bff18 3eb632d9cf42 |
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 to configure new diff commands, so |
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17 you do not need to type :hg:`extdiff -p kdiff3` always. :: |
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18 |
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19 [extdiff] |
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20 # add new command that runs GNU diff(1) in 'context diff' mode |
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21 cdiff = gdiff -Nprc5 |
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22 ## or the old way: |
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23 #cmd.cdiff = gdiff |
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24 #opts.cdiff = -Nprc5 |
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25 |
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26 # add new command called vdiff, runs kdiff3 |
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27 vdiff = kdiff3 |
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28 |
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29 # add new command called meld, runs meld (no need to name twice) |
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30 meld = |
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31 |
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32 # add new command called vimdiff, runs gvimdiff with DirDiff plugin |
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33 # (see http://www.vim.org/scripts/script.php?script_id=102) Non |
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34 # English user, be sure to put "let g:DirDiffDynamicDiffText = 1" in |
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35 # your .vimrc |
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36 vimdiff = gvim -f '+next' '+execute "DirDiff" argv(0) argv(1)' |
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37 |
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38 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 $parent is an alias for $parent1. |
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44 |
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45 The extdiff extension will look in your [diff-tools] and [merge-tools] |
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46 sections for diff tool arguments, when none are specified in [extdiff]. |
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47 |
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48 :: |
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49 |
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50 [extdiff] |
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51 kdiff3 = |
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52 |
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53 [diff-tools] |
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54 kdiff3.diffargs=--L1 '$plabel1' --L2 '$clabel' $parent $child |
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55 |
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56 You can use -I/-X and list of file or directory names like normal |
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57 :hg:`diff` command. The extdiff extension makes snapshots of only |
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58 needed files, so running the external diff program will actually be |
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59 pretty fast (at least faster than having to compare the entire tree). |
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60 ''' |
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61 |
3891 | 62 from mercurial.i18n import _ |
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63 from mercurial.node import short, nullid |
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64 from mercurial import cmdutil, util, commands, encoding |
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65 import os, shlex, shutil, tempfile, re |
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66 |
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67 def snapshot(ui, repo, files, node, tmproot): |
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68 '''snapshot files as of some revision |
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69 if not using snapshot, -I/-X does not work and recursive diff |
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70 in tools like kdiff3 and meld displays too many files.''' |
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71 dirname = os.path.basename(repo.root) |
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72 if dirname == "": |
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73 dirname = "root" |
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74 if node is not None: |
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75 dirname = '%s.%s' % (dirname, short(node)) |
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76 base = os.path.join(tmproot, dirname) |
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77 os.mkdir(base) |
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78 if node is not None: |
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79 ui.note(_('making snapshot of %d files from rev %s\n') % |
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80 (len(files), short(node))) |
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81 else: |
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83 (len(files))) |
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84 wopener = util.opener(base) |
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85 fns_and_mtime = [] |
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86 ctx = repo[node] |
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87 for fn in files: |
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88 wfn = util.pconvert(fn) |
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89 if not wfn in ctx: |
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90 # File doesn't exist; could be a bogus modify |
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91 continue |
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92 ui.note(' %s\n' % wfn) |
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93 dest = os.path.join(base, wfn) |
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94 fctx = ctx[wfn] |
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95 data = repo.wwritedata(wfn, fctx.data()) |
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96 if 'l' in fctx.flags(): |
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97 wopener.symlink(data, wfn) |
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98 else: |
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99 wopener(wfn, 'w').write(data) |
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100 if 'x' in fctx.flags(): |
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101 util.set_flags(dest, False, True) |
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102 if node is None: |
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103 fns_and_mtime.append((dest, repo.wjoin(fn), os.path.getmtime(dest))) |
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104 return dirname, fns_and_mtime |
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105 |
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106 def dodiff(ui, repo, diffcmd, diffopts, pats, opts): |
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107 '''Do the actuall diff: |
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108 |
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109 - copy to a temp structure if diffing 2 internal revisions |
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110 - copy to a temp structure if diffing working revision with |
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111 another one and more than 1 file is changed |
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112 - just invoke the diff for a single file in the working dir |
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113 ''' |
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114 |
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115 revs = opts.get('rev') |
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116 change = opts.get('change') |
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117 args = ' '.join(diffopts) |
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118 do3way = '$parent2' in args |
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119 |
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120 if revs and change: |
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121 msg = _('cannot specify --rev and --change at the same time') |
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122 raise util.Abort(msg) |
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123 elif change: |
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124 node2 = repo.lookup(change) |
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125 node1a, node1b = repo.changelog.parents(node2) |
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126 else: |
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127 node1a, node2 = cmdutil.revpair(repo, revs) |
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128 if not revs: |
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129 node1b = repo.dirstate.parents()[1] |
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130 else: |
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131 node1b = nullid |
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132 |
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133 # Disable 3-way merge if there is only one parent |
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134 if do3way: |
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135 if node1b == nullid: |
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136 do3way = False |
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137 |
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138 matcher = cmdutil.match(repo, pats, opts) |
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139 mod_a, add_a, rem_a = map(set, repo.status(node1a, node2, matcher)[:3]) |
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140 if do3way: |
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141 mod_b, add_b, rem_b = map(set, repo.status(node1b, node2, matcher)[:3]) |
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142 else: |
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143 mod_b, add_b, rem_b = set(), set(), set() |
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144 modadd = mod_a | add_a | mod_b | add_b |
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145 common = modadd | rem_a | rem_b |
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146 if not common: |
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147 return 0 |
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148 |
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149 tmproot = tempfile.mkdtemp(prefix='extdiff.') |
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150 try: |
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151 # Always make a copy of node1a (and node1b, if applicable) |
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152 dir1a_files = mod_a | rem_a | ((mod_b | add_b) - add_a) |
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153 dir1a = snapshot(ui, repo, dir1a_files, node1a, tmproot)[0] |
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154 rev1a = '@%d' % repo[node1a].rev() |
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155 if do3way: |
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156 dir1b_files = mod_b | rem_b | ((mod_a | add_a) - add_b) |
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157 dir1b = snapshot(ui, repo, dir1b_files, node1b, tmproot)[0] |
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158 rev1b = '@%d' % repo[node1b].rev() |
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159 else: |
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160 dir1b = None |
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161 rev1b = '' |
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162 |
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163 fns_and_mtime = [] |
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164 |
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165 # If node2 in not the wc or there is >1 change, copy it |
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166 dir2root = '' |
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167 rev2 = '' |
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168 if node2: |
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169 dir2 = snapshot(ui, repo, modadd, node2, tmproot)[0] |
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170 rev2 = '@%d' % repo[node2].rev() |
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171 elif len(common) > 1: |
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172 #we only actually need to get the files to copy back to |
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173 #the working dir in this case (because the other cases |
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174 #are: diffing 2 revisions or single file -- in which case |
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175 #the file is already directly passed to the diff tool). |
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176 dir2, fns_and_mtime = snapshot(ui, repo, modadd, None, tmproot) |
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177 else: |
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178 # This lets the diff tool open the changed file directly |
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179 dir2 = '' |
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180 dir2root = repo.root |
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181 |
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182 label1a = rev1a |
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183 label1b = rev1b |
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184 label2 = rev2 |
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185 |
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186 # If only one change, diff the files instead of the directories |
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187 # Handle bogus modifies correctly by checking if the files exist |
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188 if len(common) == 1: |
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189 common_file = util.localpath(common.pop()) |
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190 dir1a = os.path.join(dir1a, common_file) |
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191 label1a = common_file + rev1a |
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192 if not os.path.isfile(os.path.join(tmproot, dir1a)): |
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193 dir1a = os.devnull |
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194 if do3way: |
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195 dir1b = os.path.join(dir1b, common_file) |
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196 label1b = common_file + rev1b |
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197 if not os.path.isfile(os.path.join(tmproot, dir1b)): |
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198 dir1b = os.devnull |
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199 dir2 = os.path.join(dir2root, dir2, common_file) |
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200 label2 = common_file + rev2 |
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201 |
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202 # Function to quote file/dir names in the argument string. |
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203 # When not operating in 3-way mode, an empty string is |
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204 # returned for parent2 |
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205 replace = dict(parent=dir1a, parent1=dir1a, parent2=dir1b, |
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206 plabel1=label1a, plabel2=label1b, |
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207 clabel=label2, child=dir2) |
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208 def quote(match): |
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209 key = match.group()[1:] |
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210 if not do3way and key == 'parent2': |
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211 return '' |
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212 return util.shellquote(replace[key]) |
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213 |
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214 # Match parent2 first, so 'parent1?' will match both parent1 and parent |
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215 regex = '\$(parent2|parent1?|child|plabel1|plabel2|clabel)' |
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216 if not do3way and not re.search(regex, args): |
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217 args += ' $parent1 $child' |
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218 args = re.sub(regex, quote, args) |
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219 cmdline = util.shellquote(diffcmd) + ' ' + args |
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220 |
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221 ui.debug('running %r in %s\n' % (cmdline, tmproot)) |
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222 util.system(cmdline, cwd=tmproot) |
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223 |
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224 for copy_fn, working_fn, mtime in fns_and_mtime: |
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225 if os.path.getmtime(copy_fn) != mtime: |
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226 ui.debug('file changed while diffing. ' |
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227 'Overwriting: %s (src: %s)\n' % (working_fn, copy_fn)) |
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228 util.copyfile(copy_fn, working_fn) |
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229 |
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230 return 1 |
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231 finally: |
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232 ui.note(_('cleaning up temp directory\n')) |
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233 shutil.rmtree(tmproot) |
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234 |
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235 def extdiff(ui, repo, *pats, **opts): |
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236 '''use external program to diff repository (or selected files) |
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237 |
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238 Show differences between revisions for the specified files, using |
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239 an external program. The default program used is diff, with |
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240 default options "-Npru". |
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241 |
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242 To select a different program, use the -p/--program option. The |
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243 program will be passed the names of two directories to compare. To |
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244 pass additional options to the program, use -o/--option. These |
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245 will be passed before the names of the directories to compare. |
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246 |
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247 When two revision arguments are given, then changes are shown |
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248 between those revisions. If only one revision is specified then |
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249 that revision is compared to the working directory, and, when no |
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250 revisions are specified, the working directory files are compared |
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251 to its parent.''' |
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252 program = opts.get('program') |
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253 option = opts.get('option') |
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254 if not program: |
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255 program = 'diff' |
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256 option = option or ['-Npru'] |
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257 return dodiff(ui, repo, program, option, pats, opts) |
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258 |
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259 cmdtable = { |
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260 "extdiff": |
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261 (extdiff, |
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262 [('p', 'program', '', |
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263 _('comparison program to run'), _('CMD')), |
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264 ('o', 'option', [], |
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265 _('pass option to comparison program'), _('OPT')), |
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266 ('r', 'rev', [], |
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267 _('revision'), _('REV')), |
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268 ('c', 'change', '', |
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269 _('change made by revision'), _('REV')), |
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270 ] + commands.walkopts, |
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271 _('hg extdiff [OPT]... [FILE]...')), |
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272 } |
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273 |
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274 def uisetup(ui): |
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275 for cmd, path in ui.configitems('extdiff'): |
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276 if cmd.startswith('cmd.'): |
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277 cmd = cmd[4:] |
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278 if not path: |
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279 path = cmd |
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280 diffopts = ui.config('extdiff', 'opts.' + cmd, '') |
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281 diffopts = diffopts and [diffopts] or [] |
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282 elif cmd.startswith('opts.'): |
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283 continue |
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284 else: |
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285 # command = path opts |
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286 if path: |
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287 diffopts = shlex.split(path) |
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288 path = diffopts.pop(0) |
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289 else: |
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290 path, diffopts = cmd, [] |
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291 # look for diff arguments in [diff-tools] then [merge-tools] |
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292 if diffopts == []: |
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293 args = ui.config('diff-tools', cmd+'.diffargs') or \ |
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294 ui.config('merge-tools', cmd+'.diffargs') |
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295 if args: |
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296 diffopts = shlex.split(args) |
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297 def save(cmd, path, diffopts): |
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298 '''use closure to save diff command to use''' |
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299 def mydiff(ui, repo, *pats, **opts): |
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300 return dodiff(ui, repo, path, diffopts + opts['option'], |
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301 pats, opts) |
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302 doc = _('''\ |
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303 use %(path)s to diff repository (or selected files) |
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304 |
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305 Show differences between revisions for the specified files, using |
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306 the %(path)s program. |
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307 |
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308 When two revision arguments are given, then changes are shown |
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309 between those revisions. If only one revision is specified then |
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310 that revision is compared to the working directory, and, when no |
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311 revisions are specified, the working directory files are compared |
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312 to its parent.\ |
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313 ''') % dict(path=util.uirepr(path)) |
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314 |
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315 # We must translate the docstring right away since it is |
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316 # used as a format string. The string will unfortunately |
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317 # be translated again in commands.helpcmd and this will |
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318 # fail when the docstring contains non-ASCII characters. |
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319 # Decoding the string to a Unicode string here (using the |
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320 # right encoding) prevents that. |
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321 mydiff.__doc__ = doc.decode(encoding.encoding) |
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322 return mydiff |
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323 cmdtable[cmd] = (save(cmd, path, diffopts), |
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324 cmdtable['extdiff'][1][1:], |
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325 _('hg %s [OPTION]... [FILE]...') % cmd) |