Mercurial > hg
annotate hgext/extdiff.py @ 11148:a912f26777d3
merge: introduce tool.check parameter
tool.check is a list of check options, and can be used in place of
tool.checkchanged and tool.checkconflicts:
Equivalences:
tool.checkchanged = yes
tool.checkconflicts = no
tool.check = changed
tool.checkchanged = no
tool.checkconflicts = yes
tool.check = conflicts
tool.checkchanged = yes
tool.checkconflicts = yes
tool.check = changed, conflicts
Add _toollist() wrapper for ui.configlist() to implement this consistently.
checkchanged and checkconflicts are still supported, but check is
preferred for implementing new check options.
author | David Champion <dgc@uchicago.edu> |
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date | Mon, 10 May 2010 11:04:56 -0500 |
parents | 4612cded5176 |
children | 7d99edddbaea |
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 You can use -I/-X and list of file or directory names like normal "hg |
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39 diff" command. The extdiff extension makes snapshots of only needed |
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40 files, so running the external diff program will actually be pretty |
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41 fast (at least faster than having to compare the entire tree). |
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42 ''' |
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43 |
3891 | 44 from mercurial.i18n import _ |
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45 from mercurial.node import short, nullid |
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46 from mercurial import cmdutil, util, commands, encoding |
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47 import os, shlex, shutil, tempfile, re |
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48 |
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49 def snapshot(ui, repo, files, node, tmproot): |
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50 '''snapshot files as of some revision |
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51 if not using snapshot, -I/-X does not work and recursive diff |
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52 in tools like kdiff3 and meld displays too many files.''' |
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53 dirname = os.path.basename(repo.root) |
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54 if dirname == "": |
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55 dirname = "root" |
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56 if node is not None: |
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57 dirname = '%s.%s' % (dirname, short(node)) |
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58 base = os.path.join(tmproot, dirname) |
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59 os.mkdir(base) |
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60 if node is not None: |
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61 ui.note(_('making snapshot of %d files from rev %s\n') % |
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62 (len(files), short(node))) |
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63 else: |
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65 (len(files))) |
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66 wopener = util.opener(base) |
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67 fns_and_mtime = [] |
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68 ctx = repo[node] |
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69 for fn in files: |
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70 wfn = util.pconvert(fn) |
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71 if not wfn in ctx: |
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72 # File doesn't exist; could be a bogus modify |
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73 continue |
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74 ui.note(' %s\n' % wfn) |
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75 dest = os.path.join(base, wfn) |
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76 fctx = ctx[wfn] |
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77 data = repo.wwritedata(wfn, fctx.data()) |
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78 if 'l' in fctx.flags(): |
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79 wopener.symlink(data, wfn) |
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80 else: |
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81 wopener(wfn, 'w').write(data) |
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82 if 'x' in fctx.flags(): |
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83 util.set_flags(dest, False, True) |
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84 if node is None: |
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85 fns_and_mtime.append((dest, repo.wjoin(fn), os.path.getmtime(dest))) |
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86 return dirname, fns_and_mtime |
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87 |
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88 def dodiff(ui, repo, diffcmd, diffopts, pats, opts): |
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89 '''Do the actuall diff: |
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91 - copy to a temp structure if diffing 2 internal revisions |
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92 - copy to a temp structure if diffing working revision with |
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93 another one and more than 1 file is changed |
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94 - just invoke the diff for a single file in the working dir |
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95 ''' |
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96 |
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97 revs = opts.get('rev') |
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98 change = opts.get('change') |
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99 args = ' '.join(diffopts) |
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100 do3way = '$parent2' in args |
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101 |
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102 if revs and change: |
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103 msg = _('cannot specify --rev and --change at the same time') |
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104 raise util.Abort(msg) |
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105 elif change: |
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106 node2 = repo.lookup(change) |
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107 node1a, node1b = repo.changelog.parents(node2) |
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108 else: |
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109 node1a, node2 = cmdutil.revpair(repo, revs) |
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110 if not revs: |
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111 node1b = repo.dirstate.parents()[1] |
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112 else: |
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113 node1b = nullid |
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114 |
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115 # Disable 3-way merge if there is only one parent |
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116 if do3way: |
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117 if node1b == nullid: |
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118 do3way = False |
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119 |
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120 matcher = cmdutil.match(repo, pats, opts) |
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121 mod_a, add_a, rem_a = map(set, repo.status(node1a, node2, matcher)[:3]) |
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122 if do3way: |
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123 mod_b, add_b, rem_b = map(set, repo.status(node1b, node2, matcher)[:3]) |
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124 else: |
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125 mod_b, add_b, rem_b = set(), set(), set() |
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126 modadd = mod_a | add_a | mod_b | add_b |
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127 common = modadd | rem_a | rem_b |
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128 if not common: |
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129 return 0 |
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130 |
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131 tmproot = tempfile.mkdtemp(prefix='extdiff.') |
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132 try: |
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133 # Always make a copy of node1a (and node1b, if applicable) |
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134 dir1a_files = mod_a | rem_a | ((mod_b | add_b) - add_a) |
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135 dir1a = snapshot(ui, repo, dir1a_files, node1a, tmproot)[0] |
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136 if do3way: |
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137 dir1b_files = mod_b | rem_b | ((mod_a | add_a) - add_b) |
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138 dir1b = snapshot(ui, repo, dir1b_files, node1b, tmproot)[0] |
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139 else: |
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140 dir1b = None |
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141 |
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142 fns_and_mtime = [] |
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143 |
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144 # If node2 in not the wc or there is >1 change, copy it |
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145 dir2root = '' |
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146 if node2: |
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147 dir2 = snapshot(ui, repo, modadd, node2, tmproot)[0] |
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148 elif len(common) > 1: |
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149 #we only actually need to get the files to copy back to |
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150 #the working dir in this case (because the other cases |
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151 #are: diffing 2 revisions or single file -- in which case |
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152 #the file is already directly passed to the diff tool). |
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153 dir2, fns_and_mtime = snapshot(ui, repo, modadd, None, tmproot) |
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154 else: |
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155 # This lets the diff tool open the changed file directly |
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156 dir2 = '' |
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157 dir2root = repo.root |
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158 |
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159 # If only one change, diff the files instead of the directories |
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160 # Handle bogus modifies correctly by checking if the files exist |
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161 if len(common) == 1: |
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162 common_file = util.localpath(common.pop()) |
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163 dir1a = os.path.join(dir1a, common_file) |
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164 if not os.path.isfile(os.path.join(tmproot, dir1a)): |
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165 dir1a = os.devnull |
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166 if do3way: |
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167 dir1b = os.path.join(dir1b, common_file) |
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168 if not os.path.isfile(os.path.join(tmproot, dir1b)): |
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169 dir1b = os.devnull |
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170 dir2 = os.path.join(dir2root, dir2, common_file) |
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171 |
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172 # Function to quote file/dir names in the argument string. |
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173 # When not operating in 3-way mode, an empty string is |
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174 # returned for parent2 |
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175 replace = dict(parent=dir1a, parent1=dir1a, parent2=dir1b, child=dir2) |
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176 def quote(match): |
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177 key = match.group()[1:] |
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178 if not do3way and key == 'parent2': |
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179 return '' |
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180 return util.shellquote(replace[key]) |
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181 |
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182 # Match parent2 first, so 'parent1?' will match both parent1 and parent |
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183 regex = '\$(parent2|parent1?|child)' |
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184 if not do3way and not re.search(regex, args): |
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185 args += ' $parent1 $child' |
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186 args = re.sub(regex, quote, args) |
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187 cmdline = util.shellquote(diffcmd) + ' ' + args |
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188 |
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189 ui.debug('running %r in %s\n' % (cmdline, tmproot)) |
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190 util.system(cmdline, cwd=tmproot) |
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191 |
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192 for copy_fn, working_fn, mtime in fns_and_mtime: |
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193 if os.path.getmtime(copy_fn) != mtime: |
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194 ui.debug('file changed while diffing. ' |
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195 'Overwriting: %s (src: %s)\n' % (working_fn, copy_fn)) |
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196 util.copyfile(copy_fn, working_fn) |
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197 |
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198 return 1 |
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199 finally: |
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200 ui.note(_('cleaning up temp directory\n')) |
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201 shutil.rmtree(tmproot) |
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202 |
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203 def extdiff(ui, repo, *pats, **opts): |
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204 '''use external program to diff repository (or selected files) |
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205 |
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206 Show differences between revisions for the specified files, using |
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207 an external program. The default program used is diff, with |
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208 default options "-Npru". |
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209 |
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210 To select a different program, use the -p/--program option. The |
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211 program will be passed the names of two directories to compare. To |
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212 pass additional options to the program, use -o/--option. These |
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213 will be passed before the names of the directories to compare. |
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214 |
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215 When two revision arguments are given, then changes are shown |
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216 between those revisions. If only one revision is specified then |
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217 that revision is compared to the working directory, and, when no |
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218 revisions are specified, the working directory files are compared |
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219 to its parent.''' |
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220 program = opts.get('program') |
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221 option = opts.get('option') |
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222 if not program: |
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223 program = 'diff' |
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224 option = option or ['-Npru'] |
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225 return dodiff(ui, repo, program, option, pats, opts) |
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226 |
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227 cmdtable = { |
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228 "extdiff": |
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229 (extdiff, |
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230 [('p', 'program', '', _('comparison program to run')), |
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231 ('o', 'option', [], _('pass option to comparison program')), |
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232 ('r', 'rev', [], _('revision')), |
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233 ('c', 'change', '', _('change made by revision')), |
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234 ] + commands.walkopts, |
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235 _('hg extdiff [OPT]... [FILE]...')), |
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236 } |
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237 |
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238 def uisetup(ui): |
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239 for cmd, path in ui.configitems('extdiff'): |
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240 if cmd.startswith('cmd.'): |
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241 cmd = cmd[4:] |
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242 if not path: |
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243 path = cmd |
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244 diffopts = ui.config('extdiff', 'opts.' + cmd, '') |
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245 diffopts = diffopts and [diffopts] or [] |
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246 elif cmd.startswith('opts.'): |
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247 continue |
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248 else: |
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249 # command = path opts |
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250 if path: |
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251 diffopts = shlex.split(path) |
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252 path = diffopts.pop(0) |
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253 else: |
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254 path, diffopts = cmd, [] |
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255 def save(cmd, path, diffopts): |
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256 '''use closure to save diff command to use''' |
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257 def mydiff(ui, repo, *pats, **opts): |
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258 return dodiff(ui, repo, path, diffopts + opts['option'], |
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259 pats, opts) |
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260 doc = _('''\ |
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261 use %(path)s to diff repository (or selected files) |
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262 |
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263 Show differences between revisions for the specified files, using |
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264 the %(path)s program. |
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265 |
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266 When two revision arguments are given, then changes are shown |
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267 between those revisions. If only one revision is specified then |
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268 that revision is compared to the working directory, and, when no |
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269 revisions are specified, the working directory files are compared |
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270 to its parent.\ |
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271 ''') % dict(path=util.uirepr(path)) |
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272 |
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273 # We must translate the docstring right away since it is |
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274 # used as a format string. The string will unfortunately |
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275 # be translated again in commands.helpcmd and this will |
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276 # fail when the docstring contains non-ASCII characters. |
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277 # Decoding the string to a Unicode string here (using the |
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278 # right encoding) prevents that. |
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279 mydiff.__doc__ = doc.decode(encoding.encoding) |
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280 return mydiff |
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281 cmdtable[cmd] = (save(cmd, path, diffopts), |
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282 cmdtable['extdiff'][1][1:], |
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283 _('hg %s [OPTION]... [FILE]...') % cmd) |