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<pre><a name="line-1"></a><span class='hs-comment'>-- Copyright (C) 2002-2005 David Roundy</span>
<a name="line-2"></a><span class='hs-comment'>--</span>
<a name="line-3"></a><span class='hs-comment'>-- This program is free software; you can redistribute it and/or modify</span>
<a name="line-4"></a><span class='hs-comment'>-- it under the terms of the GNU General Public License as published by</span>
<a name="line-5"></a><span class='hs-comment'>-- the Free Software Foundation; either version 2, or (at your option)</span>
<a name="line-6"></a><span class='hs-comment'>-- any later version.</span>
<a name="line-7"></a><span class='hs-comment'>--</span>
<a name="line-8"></a><span class='hs-comment'>-- This program is distributed in the hope that it will be useful,</span>
<a name="line-9"></a><span class='hs-comment'>-- but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="line-10"></a><span class='hs-comment'>-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="line-11"></a><span class='hs-comment'>-- GNU General Public License for more details.</span>
<a name="line-12"></a><span class='hs-comment'>--</span>
<a name="line-13"></a><span class='hs-comment'>-- You should have received a copy of the GNU General Public License</span>
<a name="line-14"></a><span class='hs-comment'>-- along with this program; see the file COPYING. If not, write to</span>
<a name="line-15"></a><span class='hs-comment'>-- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="line-16"></a><span class='hs-comment'>-- Boston, MA 02110-1301, USA.</span>
<a name="line-17"></a>
<a name="line-18"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Commands</span><span class='hs-varop'>.</span><span class='hs-conid'>Check</span> <span class='hs-layout'>(</span> <span class='hs-varid'>check</span><span class='hs-layout'>,</span> <span class='hs-varid'>repair</span> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-19"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span> <span class='hs-layout'>(</span> <span class='hs-varid'>when</span><span class='hs-layout'>,</span> <span class='hs-varid'>unless</span> <span class='hs-layout'>)</span>
<a name="line-20"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Applicative</span><span class='hs-layout'>(</span> <span class='hs-layout'>(</span><span class='hs-varop'><$></span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-21"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Exit</span> <span class='hs-layout'>(</span> <span class='hs-conid'>ExitCode</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>exitWith</span> <span class='hs-layout'>)</span>
<a name="line-22"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Directory</span><span class='hs-layout'>(</span> <span class='hs-varid'>renameFile</span> <span class='hs-layout'>)</span>
<a name="line-23"></a>
<a name="line-24"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Commands</span> <span class='hs-layout'>(</span> <span class='hs-conid'>DarcsCommand</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>nodefaults</span><span class='hs-layout'>,</span> <span class='hs-varid'>putInfo</span> <span class='hs-layout'>)</span>
<a name="line-25"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Arguments</span> <span class='hs-layout'>(</span> <span class='hs-conid'>DarcsFlag</span><span class='hs-layout'>(</span><span class='hs-conid'>Quiet</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-26"></a> <span class='hs-varid'>test</span><span class='hs-layout'>,</span> <span class='hs-varid'>umaskOption</span><span class='hs-layout'>,</span>
<a name="line-27"></a> <span class='hs-varid'>leaveTestDir</span><span class='hs-layout'>,</span> <span class='hs-varid'>workingRepoDir</span><span class='hs-layout'>,</span> <span class='hs-varid'>ignoretimes</span>
<a name="line-28"></a> <span class='hs-layout'>)</span>
<a name="line-29"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Flags</span><span class='hs-layout'>(</span><span class='hs-varid'>willIgnoreTimes</span><span class='hs-layout'>)</span>
<a name="line-30"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Repository</span><span class='hs-varop'>.</span><span class='hs-conid'>Repair</span><span class='hs-layout'>(</span> <span class='hs-varid'>replayRepository</span><span class='hs-layout'>,</span> <span class='hs-varid'>checkIndex</span><span class='hs-layout'>,</span>
<a name="line-31"></a> <span class='hs-varid'>replayRepositoryInTemp</span><span class='hs-layout'>,</span>
<a name="line-32"></a> <span class='hs-conid'>RepositoryConsistency</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-33"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Repository</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Repository</span><span class='hs-layout'>,</span> <span class='hs-varid'>amInHashedRepository</span><span class='hs-layout'>,</span> <span class='hs-varid'>withRepository</span><span class='hs-layout'>,</span>
<a name="line-34"></a> <span class='hs-varid'>testRecorded</span><span class='hs-layout'>,</span> <span class='hs-varid'>readRecorded</span><span class='hs-layout'>,</span> <span class='hs-conid'>RepoJob</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-35"></a> <span class='hs-varid'>withRepoLock</span><span class='hs-layout'>,</span> <span class='hs-varid'>replacePristine</span><span class='hs-layout'>,</span> <span class='hs-varid'>writePatchSet</span> <span class='hs-layout'>)</span>
<a name="line-36"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span> <span class='hs-layout'>(</span> <span class='hs-conid'>RepoPatch</span><span class='hs-layout'>,</span> <span class='hs-varid'>showPatch</span><span class='hs-layout'>,</span> <span class='hs-conid'>PrimOf</span> <span class='hs-layout'>)</span>
<a name="line-37"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Apply</span><span class='hs-layout'>(</span> <span class='hs-conid'>ApplyState</span> <span class='hs-layout'>)</span>
<a name="line-38"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Witnesses</span><span class='hs-varop'>.</span><span class='hs-conid'>Ordered</span> <span class='hs-layout'>(</span> <span class='hs-conid'>FL</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-39"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Witnesses</span><span class='hs-varop'>.</span><span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Sealed</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>unFreeLeft</span> <span class='hs-layout'>)</span>
<a name="line-40"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Repository</span><span class='hs-varop'>.</span><span class='hs-conid'>Prefs</span> <span class='hs-layout'>(</span> <span class='hs-varid'>filetypeFunction</span> <span class='hs-layout'>)</span>
<a name="line-41"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Diff</span><span class='hs-layout'>(</span> <span class='hs-varid'>treeDiff</span> <span class='hs-layout'>)</span>
<a name="line-42"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Printer</span> <span class='hs-layout'>(</span> <span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>$$</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'><+></span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-43"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Storage</span><span class='hs-varop'>.</span><span class='hs-conid'>Hashed</span><span class='hs-varop'>.</span><span class='hs-conid'>Tree</span><span class='hs-layout'>(</span> <span class='hs-conid'>Tree</span> <span class='hs-layout'>)</span>
<a name="line-44"></a>
<a name="line-45"></a><span class='hs-cpp'>#include "gadts.h"</span>
<a name="line-46"></a>
<a name="line-47"></a><a name="checkDescription"></a><span class='hs-definition'>checkDescription</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-48"></a><span class='hs-definition'>checkDescription</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Check the repository for consistency."</span>
<a name="line-49"></a>
<a name="line-50"></a><a name="checkHelp"></a><span class='hs-definition'>checkHelp</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-51"></a><span class='hs-definition'>checkHelp</span> <span class='hs-keyglyph'>=</span>
<a name="line-52"></a> <span class='hs-str'>"This command verifies that the patches in the repository, when applied\n"</span> <span class='hs-varop'>++</span>
<a name="line-53"></a> <span class='hs-str'>"successively to an empty tree, result in the pristine tree. If not,\n"</span> <span class='hs-varop'>++</span>
<a name="line-54"></a> <span class='hs-str'>"the differences are printed and Darcs exits unsucessfully (with a\n"</span> <span class='hs-varop'>++</span>
<a name="line-55"></a> <span class='hs-str'>"non-zero exit status).\n"</span> <span class='hs-varop'>++</span>
<a name="line-56"></a> <span class='hs-str'>"\n"</span> <span class='hs-varop'>++</span>
<a name="line-57"></a> <span class='hs-str'>"If a regression test is defined (see `darcs setpref') it will be run\n"</span> <span class='hs-varop'>++</span>
<a name="line-58"></a> <span class='hs-str'>"by `darcs check'. Use the --no-test option to disable this.\n"</span>
<a name="line-59"></a>
<a name="line-60"></a><a name="check"></a><span class='hs-definition'>check</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DarcsCommand</span>
<a name="line-61"></a><span class='hs-definition'>check</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DarcsCommand</span> <span class='hs-layout'>{</span><span class='hs-varid'>commandProgramName</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"darcs"</span><span class='hs-layout'>,</span>
<a name="line-62"></a> <span class='hs-varid'>commandName</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"check"</span><span class='hs-layout'>,</span>
<a name="line-63"></a> <span class='hs-varid'>commandHelp</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkHelp</span><span class='hs-layout'>,</span>
<a name="line-64"></a> <span class='hs-varid'>commandDescription</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkDescription</span><span class='hs-layout'>,</span>
<a name="line-65"></a> <span class='hs-varid'>commandExtraArgs</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0</span><span class='hs-layout'>,</span>
<a name="line-66"></a> <span class='hs-varid'>commandExtraArgHelp</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span><span class='hs-layout'>,</span>
<a name="line-67"></a> <span class='hs-varid'>commandCommand</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkCmd</span><span class='hs-layout'>,</span>
<a name="line-68"></a> <span class='hs-varid'>commandPrereq</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>amInHashedRepository</span><span class='hs-layout'>,</span>
<a name="line-69"></a> <span class='hs-varid'>commandGetArgPossibilities</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>[]</span><span class='hs-layout'>,</span>
<a name="line-70"></a> <span class='hs-varid'>commandArgdefaults</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nodefaults</span><span class='hs-layout'>,</span>
<a name="line-71"></a> <span class='hs-varid'>commandAdvancedOptions</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span><span class='hs-layout'>,</span>
<a name="line-72"></a> <span class='hs-varid'>commandBasicOptions</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>test</span><span class='hs-layout'>,</span>
<a name="line-73"></a> <span class='hs-varid'>leaveTestDir</span><span class='hs-layout'>,</span>
<a name="line-74"></a> <span class='hs-varid'>workingRepoDir</span><span class='hs-layout'>,</span>
<a name="line-75"></a> <span class='hs-varid'>ignoretimes</span>
<a name="line-76"></a> <span class='hs-keyglyph'>]</span><span class='hs-layout'>}</span>
<a name="line-77"></a>
<a name="line-78"></a><a name="checkCmd"></a><span class='hs-definition'>checkCmd</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DarcsFlag</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-79"></a><span class='hs-definition'>checkCmd</span> <span class='hs-varid'>opts</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withRepository</span> <span class='hs-varid'>opts</span> <span class='hs-layout'>(</span><span class='hs-conid'>RepoJob</span> <span class='hs-layout'>(</span><span class='hs-varid'>check'</span> <span class='hs-varid'>opts</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-80"></a>
<a name="line-81"></a><a name="check'"></a><span class='hs-definition'>check'</span>
<a name="line-82"></a> <span class='hs-keyglyph'>::</span> <span class='hs-keyword'>forall</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>r</span> <span class='hs-varid'>u</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-conid'>ApplyState</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>~</span> <span class='hs-conid'>Tree</span><span class='hs-layout'>)</span>
<a name="line-83"></a> <span class='hs-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DarcsFlag</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Repository</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>r</span> <span class='hs-varid'>u</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-84"></a><span class='hs-definition'>check'</span> <span class='hs-varid'>opts</span> <span class='hs-varid'>repository</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-85"></a> <span class='hs-varid'>state</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>replayRepositoryInTemp</span> <span class='hs-varid'>repository</span> <span class='hs-varid'>opts</span>
<a name="line-86"></a> <span class='hs-varid'>failed</span> <span class='hs-keyglyph'><-</span>
<a name="line-87"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>state</span> <span class='hs-keyword'>of</span>
<a name="line-88"></a> <span class='hs-conid'>RepositoryConsistent</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-89"></a> <span class='hs-varid'>putInfo</span> <span class='hs-varid'>opts</span> <span class='hs-varop'>$</span> <span class='hs-varid'>text</span> <span class='hs-str'>"The repository is consistent!"</span>
<a name="line-90"></a> <span class='hs-varid'>rc</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>testRecorded</span> <span class='hs-varid'>repository</span>
<a name="line-91"></a> <span class='hs-varid'>when</span> <span class='hs-layout'>(</span><span class='hs-varid'>rc</span> <span class='hs-varop'>/=</span> <span class='hs-conid'>ExitSuccess</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>exitWith</span> <span class='hs-varid'>rc</span>
<a name="line-92"></a> <span class='hs-varid'>return</span> <span class='hs-conid'>False</span>
<a name="line-93"></a> <span class='hs-conid'>BrokenPristine</span> <span class='hs-varid'>newpris</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-94"></a> <span class='hs-varid'>brokenPristine</span> <span class='hs-varid'>newpris</span>
<a name="line-95"></a> <span class='hs-varid'>return</span> <span class='hs-conid'>True</span>
<a name="line-96"></a> <span class='hs-conid'>BrokenPatches</span> <span class='hs-varid'>newpris</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-97"></a> <span class='hs-varid'>brokenPristine</span> <span class='hs-varid'>newpris</span>
<a name="line-98"></a> <span class='hs-varid'>putInfo</span> <span class='hs-varid'>opts</span> <span class='hs-varop'>$</span> <span class='hs-varid'>text</span> <span class='hs-str'>"Found broken patches."</span>
<a name="line-99"></a> <span class='hs-varid'>return</span> <span class='hs-conid'>True</span>
<a name="line-100"></a> <span class='hs-varid'>bad_index</span> <span class='hs-keyglyph'><-</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>willIgnoreTimes</span> <span class='hs-varid'>opts</span> <span class='hs-keyword'>of</span>
<a name="line-101"></a> <span class='hs-conid'>False</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>not</span> <span class='hs-varop'><$></span> <span class='hs-varid'>checkIndex</span> <span class='hs-varid'>repository</span> <span class='hs-layout'>(</span><span class='hs-conid'>Quiet</span> <span class='hs-varop'>`elem`</span> <span class='hs-varid'>opts</span><span class='hs-layout'>)</span>
<a name="line-102"></a> <span class='hs-conid'>True</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>False</span>
<a name="line-103"></a> <span class='hs-varid'>when</span> <span class='hs-varid'>bad_index</span> <span class='hs-varop'>$</span> <span class='hs-varid'>putInfo</span> <span class='hs-varid'>opts</span> <span class='hs-varop'>$</span> <span class='hs-varid'>text</span> <span class='hs-str'>"Bad index."</span>
<a name="line-104"></a> <span class='hs-varid'>exitWith</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>failed</span> <span class='hs-varop'>||</span> <span class='hs-varid'>bad_index</span> <span class='hs-keyword'>then</span> <span class='hs-conid'>ExitFailure</span> <span class='hs-num'>1</span> <span class='hs-keyword'>else</span> <span class='hs-conid'>ExitSuccess</span>
<a name="line-105"></a> <span class='hs-keyword'>where</span>
<a name="line-106"></a> <span class='hs-varid'>brokenPristine</span> <span class='hs-varid'>newpris</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-107"></a> <span class='hs-varid'>putInfo</span> <span class='hs-varid'>opts</span> <span class='hs-varop'>$</span> <span class='hs-varid'>text</span> <span class='hs-str'>"Looks like we have a difference..."</span>
<a name="line-108"></a> <span class='hs-varid'>mc'</span> <span class='hs-keyglyph'><-</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-varid'>readRecorded</span> <span class='hs-varid'>repository</span><span class='hs-layout'>)</span> <span class='hs-varop'>`catch`</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span>
<a name="line-109"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>mc'</span> <span class='hs-keyword'>of</span>
<a name="line-110"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-varid'>putInfo</span> <span class='hs-varid'>opts</span> <span class='hs-varop'>$</span> <span class='hs-varid'>text</span> <span class='hs-str'>"cannot compute that difference, try repair"</span>
<a name="line-111"></a> <span class='hs-varid'>putInfo</span> <span class='hs-varid'>opts</span> <span class='hs-varop'>$</span> <span class='hs-varid'>text</span> <span class='hs-str'>""</span> <span class='hs-varop'>$$</span> <span class='hs-varid'>text</span> <span class='hs-str'>"Inconsistent repository"</span>
<a name="line-112"></a> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-113"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>mc</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-114"></a> <span class='hs-varid'>ftf</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>filetypeFunction</span>
<a name="line-115"></a> <span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-varid'>diff</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FL</span> <span class='hs-layout'>(</span><span class='hs-conid'>PrimOf</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>r</span> <span class='hs-varid'>r2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>unFreeLeft</span> <span class='hs-varop'>`fmap`</span> <span class='hs-varid'>treeDiff</span> <span class='hs-varid'>ftf</span> <span class='hs-varid'>newpris</span> <span class='hs-varid'>mc</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-conid'>FL</span> <span class='hs-layout'>(</span><span class='hs-conid'>PrimOf</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>r</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-116"></a> <span class='hs-varid'>putInfo</span> <span class='hs-varid'>opts</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>diff</span> <span class='hs-keyword'>of</span>
<a name="line-117"></a> <span class='hs-conid'>NilFL</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>text</span> <span class='hs-str'>"Nothing"</span>
<a name="line-118"></a> <span class='hs-varid'>patch</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>text</span> <span class='hs-str'>"Difference: "</span> <span class='hs-varop'><+></span> <span class='hs-varid'>showPatch</span> <span class='hs-varid'>patch</span>
<a name="line-119"></a> <span class='hs-varid'>putInfo</span> <span class='hs-varid'>opts</span> <span class='hs-varop'>$</span> <span class='hs-varid'>text</span> <span class='hs-str'>""</span>
<a name="line-120"></a> <span class='hs-varop'>$$</span> <span class='hs-varid'>text</span> <span class='hs-str'>"Inconsistent repository!"</span>
<a name="line-121"></a>
<a name="line-122"></a>
<a name="line-123"></a><a name="repairDescription"></a><span class='hs-definition'>repairDescription</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-124"></a><span class='hs-definition'>repairDescription</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Repair a corrupted repository."</span>
<a name="line-125"></a>
<a name="line-126"></a><a name="repairHelp"></a><span class='hs-definition'>repairHelp</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-127"></a><span class='hs-definition'>repairHelp</span> <span class='hs-keyglyph'>=</span>
<a name="line-128"></a> <span class='hs-str'>"The `darcs repair' command attempts to fix corruption in the current\n"</span> <span class='hs-varop'>++</span>
<a name="line-129"></a> <span class='hs-str'>"repository. Currently it can only repair damage to the pristine tree,\n"</span> <span class='hs-varop'>++</span>
<a name="line-130"></a> <span class='hs-str'>"which is where most corruption occurs.\n"</span>
<a name="line-131"></a>
<a name="line-132"></a><a name="repair"></a><span class='hs-definition'>repair</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DarcsCommand</span>
<a name="line-133"></a><span class='hs-definition'>repair</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DarcsCommand</span> <span class='hs-layout'>{</span><span class='hs-varid'>commandProgramName</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"darcs"</span><span class='hs-layout'>,</span>
<a name="line-134"></a> <span class='hs-varid'>commandName</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"repair"</span><span class='hs-layout'>,</span>
<a name="line-135"></a> <span class='hs-varid'>commandHelp</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>repairHelp</span><span class='hs-layout'>,</span>
<a name="line-136"></a> <span class='hs-varid'>commandDescription</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>repairDescription</span><span class='hs-layout'>,</span>
<a name="line-137"></a> <span class='hs-varid'>commandExtraArgs</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0</span><span class='hs-layout'>,</span>
<a name="line-138"></a> <span class='hs-varid'>commandExtraArgHelp</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span><span class='hs-layout'>,</span>
<a name="line-139"></a> <span class='hs-varid'>commandCommand</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>repairCmd</span><span class='hs-layout'>,</span>
<a name="line-140"></a> <span class='hs-varid'>commandPrereq</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>amInHashedRepository</span><span class='hs-layout'>,</span>
<a name="line-141"></a> <span class='hs-varid'>commandGetArgPossibilities</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>[]</span><span class='hs-layout'>,</span>
<a name="line-142"></a> <span class='hs-varid'>commandArgdefaults</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nodefaults</span><span class='hs-layout'>,</span>
<a name="line-143"></a> <span class='hs-varid'>commandAdvancedOptions</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>umaskOption</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span>
<a name="line-144"></a> <span class='hs-varid'>commandBasicOptions</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>workingRepoDir</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>}</span>
<a name="line-145"></a>
<a name="line-146"></a><a name="repairCmd"></a><span class='hs-definition'>repairCmd</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DarcsFlag</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-147"></a><span class='hs-definition'>repairCmd</span> <span class='hs-varid'>opts</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withRepoLock</span> <span class='hs-varid'>opts</span> <span class='hs-varop'>$</span> <span class='hs-conid'>RepoJob</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>repository</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-148"></a> <span class='hs-varid'>replayRepository</span> <span class='hs-varid'>repository</span> <span class='hs-varid'>opts</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>state</span> <span class='hs-keyglyph'>-></span>
<a name="line-149"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>state</span> <span class='hs-keyword'>of</span>
<a name="line-150"></a> <span class='hs-conid'>RepositoryConsistent</span> <span class='hs-keyglyph'>-></span>
<a name="line-151"></a> <span class='hs-varid'>putStrLn</span> <span class='hs-str'>"The repository is already consistent, no changes made."</span>
<a name="line-152"></a> <span class='hs-conid'>BrokenPristine</span> <span class='hs-varid'>tree</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-153"></a> <span class='hs-varid'>putStrLn</span> <span class='hs-str'>"Fixing pristine tree..."</span>
<a name="line-154"></a> <span class='hs-varid'>replacePristine</span> <span class='hs-varid'>repository</span> <span class='hs-varid'>tree</span>
<a name="line-155"></a> <span class='hs-conid'>BrokenPatches</span> <span class='hs-varid'>tree</span> <span class='hs-varid'>newps</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-156"></a> <span class='hs-varid'>putStrLn</span> <span class='hs-str'>"Writing out repaired patches..."</span>
<a name="line-157"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>writePatchSet</span> <span class='hs-varid'>newps</span> <span class='hs-varid'>opts</span>
<a name="line-158"></a> <span class='hs-varid'>putStrLn</span> <span class='hs-str'>"Fixing pristine tree..."</span>
<a name="line-159"></a> <span class='hs-varid'>replacePristine</span> <span class='hs-varid'>repository</span> <span class='hs-varid'>tree</span>
<a name="line-160"></a> <span class='hs-varid'>index_ok</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkIndex</span> <span class='hs-varid'>repository</span> <span class='hs-layout'>(</span><span class='hs-conid'>Quiet</span> <span class='hs-varop'>`elem`</span> <span class='hs-varid'>opts</span><span class='hs-layout'>)</span>
<a name="line-161"></a> <span class='hs-varid'>unless</span> <span class='hs-varid'>index_ok</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>renameFile</span> <span class='hs-str'>"_darcs/index"</span> <span class='hs-str'>"_darcs/index.bad"</span>
<a name="line-162"></a> <span class='hs-varid'>putStrLn</span> <span class='hs-str'>"Bad index discarded."</span>
<a name="line-163"></a>
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