Mercurial > hg > mercurial-crew-with-dirclash
annotate hgext/extdiff.py @ 2894:75bcb8210a37
merge with jeffpc
author | Thomas Arendsen Hein <thomas@intevation.de> |
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date | Tue, 15 Aug 2006 11:22:29 +0200 |
parents | 453097750fbf |
children | 05f357b70cb0 |
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 |
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6 # of the GNU General Public License, incorporated herein by reference. |
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7 # |
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8 # allow to use external programs to compare revisions, or revision |
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9 # with working dir. program is called with two arguments: paths to |
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10 # directories containing snapshots of files to compare. |
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11 # |
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12 # to enable: |
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13 # |
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14 # [extensions] |
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15 # hgext.extdiff = |
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16 # |
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17 # also allows to configure new diff commands, so you do not need to |
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18 # type "hg extdiff -p kdiff3" always. |
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19 # |
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20 # [extdiff] |
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21 # # add new command called vdiff, runs kdiff3 |
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22 # cmd.vdiff = kdiff3 |
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23 # # add new command called meld, runs meld (no need to name twice) |
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24 # cmd.meld = |
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25 # # add new command called vimdiff, runs gvimdiff with DirDiff plugin |
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26 # #(see http://www.vim.org/scripts/script.php?script_id=102) |
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27 # cmd.vimdiff = LC_ALL=C gvim -f '+bdel 1 2' '+ execute "DirDiff ".argv(0)." ".argv(1)' |
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28 # |
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29 # you can use -I/-X and list of file or directory names like normal |
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30 # "hg diff" command. extdiff makes snapshots of only needed files, so |
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31 # compare program will be fast. |
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32 |
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33 from mercurial.demandload import demandload |
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34 from mercurial.i18n import gettext as _ |
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35 from mercurial.node import * |
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36 demandload(globals(), 'mercurial:commands,cmdutil,util os shutil tempfile') |
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37 |
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38 def dodiff(ui, repo, diffcmd, diffopts, pats, opts): |
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39 def snapshot_node(files, node): |
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40 '''snapshot files as of some revision''' |
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41 changes = repo.changelog.read(node) |
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42 mf = repo.manifest.read(changes[0]) |
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43 dirname = '%s.%s' % (os.path.basename(repo.root), short(node)) |
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44 base = os.path.join(tmproot, dirname) |
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45 os.mkdir(base) |
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46 if not ui.quiet: |
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47 ui.write_err(_('making snapshot of %d files from rev %s\n') % |
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48 (len(files), short(node))) |
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49 for fn in files: |
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50 wfn = util.pconvert(fn) |
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51 ui.note(' %s\n' % wfn) |
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52 dest = os.path.join(base, wfn) |
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53 destdir = os.path.dirname(dest) |
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54 if not os.path.isdir(destdir): |
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55 os.makedirs(destdir) |
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56 repo.wwrite(wfn, repo.file(fn).read(mf[fn]), open(dest, 'w')) |
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57 return dirname |
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58 |
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59 def snapshot_wdir(files): |
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60 '''snapshot files from working directory. |
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61 if not using snapshot, -I/-X does not work and recursive diff |
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62 in tools like kdiff3 and meld displays too many files.''' |
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63 dirname = os.path.basename(repo.root) |
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64 base = os.path.join(tmproot, dirname) |
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65 os.mkdir(base) |
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66 if not ui.quiet: |
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67 ui.write_err(_('making snapshot of %d files from working dir\n') % |
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68 (len(files))) |
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69 for fn in files: |
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70 wfn = util.pconvert(fn) |
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71 ui.note(' %s\n' % wfn) |
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72 dest = os.path.join(base, wfn) |
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73 destdir = os.path.dirname(dest) |
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74 if not os.path.isdir(destdir): |
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75 os.makedirs(destdir) |
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76 fp = open(dest, 'w') |
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77 for chunk in util.filechunkiter(repo.wopener(wfn)): |
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78 fp.write(chunk) |
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79 return dirname |
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80 |
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81 node1, node2 = commands.revpair(ui, repo, opts['rev']) |
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82 files, matchfn, anypats = cmdutil.matchpats(repo, pats, opts) |
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83 modified, added, removed, deleted, unknown = repo.status( |
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84 node1, node2, files, match=matchfn)[:5] |
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85 if not (modified or added or removed): |
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86 return 0 |
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87 |
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88 tmproot = tempfile.mkdtemp(prefix='extdiff.') |
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89 try: |
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90 dir1 = snapshot_node(modified + removed, node1) |
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91 if node2: |
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92 dir2 = snapshot_node(modified + added, node2) |
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93 else: |
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94 dir2 = snapshot_wdir(modified + added) |
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95 cmdline = ('%s %s %s %s' % |
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96 (util.shellquote(diffcmd), |
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97 ' '.join(map(util.shellquote, diffopts)), |
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98 util.shellquote(dir1), util.shellquote(dir2))) |
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99 ui.debug('running %r in %s\n' % (cmdline, tmproot)) |
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100 util.system(cmdline, cwd=tmproot) |
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101 return 1 |
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102 finally: |
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103 ui.note(_('cleaning up temp directory\n')) |
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104 shutil.rmtree(tmproot) |
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105 |
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106 def extdiff(ui, repo, *pats, **opts): |
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107 '''use external program to diff repository (or selected files) |
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108 |
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109 Show differences between revisions for the specified files, using |
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110 an external program. The default program used is diff, with |
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111 default options "-Npru". |
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112 |
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113 To select a different program, use the -p option. The program |
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114 will be passed the names of two directories to compare. To pass |
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115 additional options to the program, use the -o option. These will |
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116 be passed before the names of the directories to compare. |
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117 |
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118 When two revision arguments are given, then changes are |
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119 shown between those revisions. If only one revision is |
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120 specified then that revision is compared to the working |
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121 directory, and, when no revisions are specified, the |
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122 working directory files are compared to its parent.''' |
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123 return dodiff(ui, repo, opts['program'] or 'diff', |
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124 opts['option'] or ['-Npru'], pats, opts) |
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125 |
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126 cmdtable = { |
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127 "extdiff": |
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128 (extdiff, |
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129 [('p', 'program', '', _('comparison program to run')), |
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130 ('o', 'option', [], _('pass option to comparison program')), |
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131 ('r', 'rev', [], _('revision')), |
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132 ('I', 'include', [], _('include names matching the given patterns')), |
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133 ('X', 'exclude', [], _('exclude names matching the given patterns'))], |
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134 _('hg extdiff [OPT]... [FILE]...')), |
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135 } |
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136 |
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137 def uisetup(ui): |
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138 for cmd, path in ui.configitems('extdiff'): |
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139 if not cmd.startswith('cmd.'): continue |
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140 cmd = cmd[4:] |
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141 if not path: path = cmd |
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142 diffopts = ui.config('extdiff', 'opts.' + cmd, '') |
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143 diffopts = diffopts and [diffopts] or [] |
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144 def save(cmd, path): |
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145 '''use closure to save diff command to use''' |
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146 def mydiff(ui, repo, *pats, **opts): |
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147 return dodiff(ui, repo, path, diffopts, pats, opts) |
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148 mydiff.__doc__ = '''use %(path)r to diff repository (or selected files) |
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149 |
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150 Show differences between revisions for the specified |
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151 files, using the %(path)r program. |
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152 |
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153 When two revision arguments are given, then changes are |
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154 shown between those revisions. If only one revision is |
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155 specified then that revision is compared to the working |
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156 directory, and, when no revisions are specified, the |
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157 working directory files are compared to its parent.''' % { |
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158 'path': path, |
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159 } |
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160 return mydiff |
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161 cmdtable[cmd] = (save(cmd, path), |
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162 cmdtable['extdiff'][1][1:], |
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163 _('hg %s [OPT]... [FILE]...') % cmd) |