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<pre><a name="line-1"></a><span class='hs-comment'>-- Copyright (C) 2002-2005,2007-2008 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-comment'>{-# LANGUAGE CPP, ScopedTypeVariables #-}</span>
<a name="line-19"></a>
<a name="line-20"></a><span class='hs-cpp'>#include "gadts.h"</span>
<a name="line-21"></a>
<a name="line-22"></a><span class='hs-keyword'>module</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'>Old</span> <span class='hs-layout'>(</span> <span class='hs-varid'>readOldRepo</span><span class='hs-layout'>,</span>
<a name="line-23"></a> <span class='hs-varid'>revertTentativeChanges</span><span class='hs-layout'>,</span> <span class='hs-varid'>oldRepoFailMsg</span> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-24"></a>
<a name="line-25"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Progress</span> <span class='hs-layout'>(</span> <span class='hs-varid'>debugMessage</span><span class='hs-layout'>,</span> <span class='hs-varid'>beginTedious</span><span class='hs-layout'>,</span> <span class='hs-varid'>endTedious</span><span class='hs-layout'>,</span> <span class='hs-varid'>finishedOneIO</span> <span class='hs-layout'>)</span>
<a name="line-26"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>RepoPath</span> <span class='hs-layout'>(</span> <span class='hs-varid'>ioAbsoluteOrRemote</span><span class='hs-layout'>,</span> <span class='hs-varid'>toPath</span> <span class='hs-layout'>)</span>
<a name="line-27"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span> <span class='hs-varid'>hPutStrLn</span><span class='hs-layout'>,</span> <span class='hs-varid'>stderr</span> <span class='hs-layout'>)</span>
<a name="line-28"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Unsafe</span> <span class='hs-layout'>(</span> <span class='hs-varid'>unsafeInterleaveIO</span> <span class='hs-layout'>)</span>
<a name="line-29"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>FilePath</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</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-30"></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'>PatchInfoAnd</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Hopefully</span><span class='hs-layout'>,</span> <span class='hs-conid'>PatchInfoAnd</span><span class='hs-layout'>,</span>
<a name="line-31"></a> <span class='hs-varid'>patchInfoAndPatch</span><span class='hs-layout'>,</span>
<a name="line-32"></a> <span class='hs-varid'>actually</span><span class='hs-layout'>,</span> <span class='hs-varid'>unavailable</span> <span class='hs-layout'>)</span>
<a name="line-33"></a>
<a name="line-34"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>Char8</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>BC</span> <span class='hs-layout'>(</span><span class='hs-varid'>break</span><span class='hs-layout'>,</span> <span class='hs-varid'>pack</span><span class='hs-layout'>)</span>
<a name="line-35"></a>
<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-conid'>Named</span><span class='hs-layout'>,</span>
<a name="line-37"></a> <span class='hs-varid'>readPatch</span> <span class='hs-layout'>)</span>
<a name="line-38"></a>
<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'>Ordered</span> <span class='hs-layout'>(</span> <span class='hs-conid'>RL</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</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'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Info</span> <span class='hs-layout'>(</span> <span class='hs-conid'>PatchInfo</span><span class='hs-layout'>,</span> <span class='hs-varid'>makeFilename</span><span class='hs-layout'>,</span> <span class='hs-varid'>readPatchInfos</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'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Set</span> <span class='hs-layout'>(</span> <span class='hs-conid'>PatchSet</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Tagged</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>SealedPatchSet</span> <span class='hs-layout'>)</span>
<a name="line-42"></a><span class='hs-cpp'>#ifdef GADT_WITNESSES</span>
<a name="line-43"></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'>Set</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Origin</span> <span class='hs-layout'>)</span>
<a name="line-44"></a><span class='hs-cpp'>#endif</span>
<a name="line-45"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>External</span> <span class='hs-layout'>(</span> <span class='hs-varid'>gzFetchFilePS</span><span class='hs-layout'>,</span> <span class='hs-conid'>Cachable</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-46"></a> <span class='hs-varid'>cloneFile</span> <span class='hs-layout'>)</span>
<a name="line-47"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Lock</span> <span class='hs-layout'>(</span> <span class='hs-varid'>writeBinFile</span> <span class='hs-layout'>)</span>
<a name="line-48"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Global</span> <span class='hs-layout'>(</span> <span class='hs-varid'>darcsdir</span> <span class='hs-layout'>)</span>
<a name="line-49"></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-conid'>Sealed</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>seal</span><span class='hs-layout'>,</span> <span class='hs-varid'>unseal</span><span class='hs-layout'>,</span> <span class='hs-varid'>mapSeal</span> <span class='hs-layout'>)</span>
<a name="line-50"></a>
<a name="line-51"></a><span class='hs-cpp'>#include "impossible.h"</span>
<a name="line-52"></a>
<a name="line-53"></a><a name="readOldRepo"></a><span class='hs-definition'>readOldRepo</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>SealedPatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-conid'>Origin</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-54"></a><span class='hs-definition'>readOldRepo</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-55"></a> <span class='hs-varid'>realdir</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>toPath</span> <span class='hs-varop'>`fmap`</span> <span class='hs-varid'>ioAbsoluteOrRemote</span> <span class='hs-varid'>d</span>
<a name="line-56"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Reading inventory of repository "</span><span class='hs-varop'>++</span><span class='hs-varid'>d</span>
<a name="line-57"></a> <span class='hs-varid'>beginTedious</span> <span class='hs-varid'>k</span>
<a name="line-58"></a> <span class='hs-varid'>readRepoPrivate</span> <span class='hs-varid'>k</span> <span class='hs-varid'>realdir</span> <span class='hs-str'>"inventory"</span> <span class='hs-varop'>`catch`</span>
<a name="line-59"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-varid'>hPutStrLn</span> <span class='hs-varid'>stderr</span> <span class='hs-layout'>(</span><span class='hs-str'>"Invalid repository: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>realdir</span><span class='hs-layout'>)</span>
<a name="line-60"></a> <span class='hs-varid'>ioError</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span>
<a name="line-61"></a>
<a name="line-62"></a><a name="readRepoPrivate"></a><span class='hs-definition'>readRepoPrivate</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>SealedPatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-conid'>Origin</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-63"></a><span class='hs-definition'>readRepoPrivate</span> <span class='hs-varid'>k</span> <span class='hs-varid'>d</span> <span class='hs-varid'>iname</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-64"></a> <span class='hs-varid'>i</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>gzFetchFilePS</span> <span class='hs-layout'>(</span><span class='hs-varid'>d</span> <span class='hs-varop'></></span> <span class='hs-str'>"_darcs"</span> <span class='hs-varop'></></span> <span class='hs-varid'>iname</span><span class='hs-layout'>)</span> <span class='hs-conid'>Uncachable</span>
<a name="line-65"></a> <span class='hs-varid'>finishedOneIO</span> <span class='hs-varid'>k</span> <span class='hs-varid'>iname</span>
<a name="line-66"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>parse</span> <span class='hs-varid'>inf</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>parse2</span> <span class='hs-varid'>inf</span> <span class='hs-varop'>$</span> <span class='hs-varid'>d</span> <span class='hs-varop'></></span> <span class='hs-str'>"_darcs/patches"</span> <span class='hs-varop'></></span> <span class='hs-varid'>makeFilename</span> <span class='hs-varid'>inf</span>
<a name="line-67"></a> <span class='hs-layout'>(</span><span class='hs-varid'>mt</span><span class='hs-layout'>,</span> <span class='hs-varid'>is</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>break</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-layout'>)</span> <span class='hs-chr'>'\n'</span><span class='hs-layout'>)</span> <span class='hs-varid'>i</span> <span class='hs-keyword'>of</span>
<a name="line-68"></a> <span class='hs-layout'>(</span><span class='hs-varid'>swt</span><span class='hs-layout'>,</span><span class='hs-varid'>pistr</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>swt</span> <span class='hs-varop'>==</span> <span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"Starting with tag:"</span> <span class='hs-keyglyph'>-></span>
<a name="line-69"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>readPatchInfos</span> <span class='hs-varid'>pistr</span> <span class='hs-keyword'>of</span>
<a name="line-70"></a> <span class='hs-layout'>(</span><span class='hs-varid'>t</span><span class='hs-conop'>:</span><span class='hs-varid'>ids</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>,</span><span class='hs-varid'>reverse</span> <span class='hs-varid'>ids</span><span class='hs-layout'>)</span>
<a name="line-71"></a> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>bug</span> <span class='hs-str'>"bad inventory in readRepoPrivate"</span>
<a name="line-72"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Nothing</span><span class='hs-layout'>,</span> <span class='hs-varid'>reverse</span> <span class='hs-varop'>$</span> <span class='hs-varid'>readPatchInfos</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span>
<a name="line-73"></a> <span class='hs-conid'>Sealed</span> <span class='hs-varid'>ts</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>unseal</span> <span class='hs-varid'>seal</span> <span class='hs-varop'>`fmap`</span> <span class='hs-varid'>unsafeInterleaveIO</span> <span class='hs-layout'>(</span><span class='hs-varid'>read_ts</span> <span class='hs-varid'>parse</span> <span class='hs-varid'>mt</span><span class='hs-layout'>)</span>
<a name="line-74"></a> <span class='hs-conid'>Sealed</span> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>unseal</span> <span class='hs-varid'>seal</span> <span class='hs-varop'>`fmap`</span> <span class='hs-varid'>unsafeInterleaveIO</span> <span class='hs-layout'>(</span><span class='hs-varid'>read_patches</span> <span class='hs-varid'>parse</span> <span class='hs-varid'>is</span><span class='hs-layout'>)</span>
<a name="line-75"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>seal</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-76"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>read_ts</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span>
<a name="line-77"></a> <span class='hs-layout'>(</span><span class='hs-conid'>FORALL</span><span class='hs-layout'>(</span><span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-conid'>PatchInfo</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'>PatchInfoAnd</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>b</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-78"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>PatchInfo</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'>RL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Tagged</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-conid'>Origin</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-79"></a> <span class='hs-varid'>read_ts</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>endTedious</span> <span class='hs-varid'>k</span>
<a name="line-80"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>seal</span> <span class='hs-conid'>NilRL</span>
<a name="line-81"></a> <span class='hs-varid'>read_ts</span> <span class='hs-varid'>parse</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>tag0</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-82"></a> <span class='hs-keyword'>do</span> <span class='hs-varid'>debugMessage</span> <span class='hs-varop'>$</span> <span class='hs-str'>"Looking for inventory for:\n"</span><span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>tag0</span>
<a name="line-83"></a> <span class='hs-varid'>i</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>unsafeInterleaveIO</span> <span class='hs-varop'>$</span>
<a name="line-84"></a> <span class='hs-keyword'>do</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>gzFetchFilePS</span> <span class='hs-layout'>(</span><span class='hs-varid'>d</span><span class='hs-varop'></></span><span class='hs-str'>"_darcs/inventories"</span><span class='hs-varop'></></span><span class='hs-varid'>makeFilename</span> <span class='hs-varid'>tag0</span><span class='hs-layout'>)</span> <span class='hs-conid'>Uncachable</span>
<a name="line-85"></a> <span class='hs-varid'>finishedOneIO</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>show</span> <span class='hs-varid'>tag0</span><span class='hs-layout'>)</span>
<a name="line-86"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>x</span>
<a name="line-87"></a> <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>mt</span><span class='hs-layout'>,</span> <span class='hs-varid'>is</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>break</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-layout'>)</span> <span class='hs-chr'>'\n'</span><span class='hs-layout'>)</span> <span class='hs-varid'>i</span> <span class='hs-keyword'>of</span>
<a name="line-88"></a> <span class='hs-layout'>(</span><span class='hs-varid'>swt</span><span class='hs-layout'>,</span><span class='hs-varid'>pistr</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>swt</span> <span class='hs-varop'>==</span> <span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"Starting with tag:"</span> <span class='hs-keyglyph'>-></span>
<a name="line-89"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>readPatchInfos</span> <span class='hs-varid'>pistr</span> <span class='hs-keyword'>of</span>
<a name="line-90"></a> <span class='hs-layout'>(</span><span class='hs-varid'>t</span><span class='hs-conop'>:</span><span class='hs-varid'>ids</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>,</span><span class='hs-varid'>reverse</span> <span class='hs-varid'>ids</span><span class='hs-layout'>)</span>
<a name="line-91"></a> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>bug</span> <span class='hs-str'>"bad inventory in readRepoPrivate"</span>
<a name="line-92"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Nothing</span><span class='hs-layout'>,</span> <span class='hs-varid'>reverse</span> <span class='hs-varop'>$</span> <span class='hs-varid'>readPatchInfos</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span>
<a name="line-93"></a> <span class='hs-conid'>Sealed</span> <span class='hs-varid'>ts</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-varid'>unseal</span> <span class='hs-varid'>seal</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>unsafeInterleaveIO</span> <span class='hs-varop'>$</span> <span class='hs-varid'>read_ts</span> <span class='hs-varid'>parse</span> <span class='hs-varid'>mt</span>
<a name="line-94"></a> <span class='hs-conid'>Sealed</span> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>unseal</span> <span class='hs-varid'>seal</span> <span class='hs-varop'>`fmap`</span> <span class='hs-varid'>unsafeInterleaveIO</span> <span class='hs-layout'>(</span><span class='hs-varid'>read_patches</span> <span class='hs-varid'>parse</span> <span class='hs-varid'>is</span><span class='hs-layout'>)</span>
<a name="line-95"></a> <span class='hs-conid'>Sealed</span> <span class='hs-varid'>tag00</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>parse</span> <span class='hs-varid'>tag0</span> <span class='hs-varop'>`catch`</span>
<a name="line-96"></a> <span class='hs-keyglyph'>\</span><span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>seal</span> <span class='hs-varop'>$</span>
<a name="line-97"></a> <span class='hs-varid'>patchInfoAndPatch</span> <span class='hs-varid'>tag0</span> <span class='hs-varop'>$</span> <span class='hs-varid'>unavailable</span> <span class='hs-varop'>$</span> <span class='hs-varid'>show</span> <span class='hs-varid'>e</span>
<a name="line-98"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>seal</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Tagged</span> <span class='hs-varid'>tag00</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>ps</span> <span class='hs-conop'>:<:</span> <span class='hs-varid'>ts</span>
<a name="line-99"></a> <span class='hs-varid'>parse2</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>PatchInfo</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FilePath</span>
<a name="line-100"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchInfoAnd</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-101"></a> <span class='hs-varid'>parse2</span> <span class='hs-varid'>i</span> <span class='hs-varid'>fn</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>unsafeInterleaveIO</span> <span class='hs-varop'>$</span> <span class='hs-varid'>gzFetchFilePS</span> <span class='hs-varid'>fn</span> <span class='hs-conid'>Cachable</span>
<a name="line-102"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>patchInfoAndPatch</span> <span class='hs-varid'>i</span>
<a name="line-103"></a> <span class='hs-varop'>`mapSeal`</span> <span class='hs-varid'>hopefullyNoParseError</span> <span class='hs-layout'>(</span><span class='hs-varid'>toPath</span> <span class='hs-varid'>fn</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>readPatch</span> <span class='hs-varid'>ps</span><span class='hs-layout'>)</span>
<a name="line-104"></a> <span class='hs-varid'>hopefullyNoParseError</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-conid'>Named</span> <span class='hs-varid'>a1dr</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-105"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-conid'>Hopefully</span> <span class='hs-layout'>(</span><span class='hs-conid'>Named</span> <span class='hs-varid'>a1dr</span><span class='hs-layout'>)</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-106"></a> <span class='hs-varid'>hopefullyNoParseError</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>seal</span> <span class='hs-varop'>$</span> <span class='hs-varid'>actually</span> <span class='hs-varid'>x</span>
<a name="line-107"></a> <span class='hs-varid'>hopefullyNoParseError</span> <span class='hs-varid'>s</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>seal</span> <span class='hs-varop'>$</span> <span class='hs-varid'>unavailable</span> <span class='hs-varop'>$</span> <span class='hs-str'>"Couldn't parse file "</span><span class='hs-varop'>++</span><span class='hs-varid'>s</span>
<a name="line-108"></a> <span class='hs-varid'>read_patches</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span>
<a name="line-109"></a> <span class='hs-layout'>(</span><span class='hs-conid'>FORALL</span><span class='hs-layout'>(</span><span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-conid'>PatchInfo</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'>PatchInfoAnd</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>b</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-110"></a> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PatchInfo</span><span class='hs-keyglyph'>]</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'>RL</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchInfoAnd</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'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-111"></a> <span class='hs-varid'>read_patches</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>seal</span> <span class='hs-conid'>NilRL</span>
<a name="line-112"></a> <span class='hs-varid'>read_patches</span> <span class='hs-varid'>parse</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-conop'>:</span><span class='hs-varid'>is</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-113"></a> <span class='hs-varid'>lift2Sealed</span> <span class='hs-layout'>(</span><span class='hs-conop'>:<:</span><span class='hs-layout'>)</span>
<a name="line-114"></a> <span class='hs-layout'>(</span><span class='hs-varid'>read_patches</span> <span class='hs-varid'>parse</span> <span class='hs-varid'>is</span><span class='hs-layout'>)</span>
<a name="line-115"></a> <span class='hs-layout'>(</span><span class='hs-varid'>parse</span> <span class='hs-varid'>i</span> <span class='hs-varop'>`catch`</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span>
<a name="line-116"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>seal</span> <span class='hs-varop'>$</span> <span class='hs-varid'>patchInfoAndPatch</span> <span class='hs-varid'>i</span> <span class='hs-varop'>$</span> <span class='hs-varid'>unavailable</span> <span class='hs-varop'>$</span> <span class='hs-varid'>show</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span>
<a name="line-117"></a> <span class='hs-varid'>lift2Sealed</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>FORALL</span><span class='hs-layout'>(</span><span class='hs-varid'>y</span> <span class='hs-varid'>z</span><span class='hs-layout'>)</span> <span class='hs-varid'>q</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>y</span> <span class='hs-varid'>z</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>pp</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>r</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>z</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-118"></a> <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-varid'>pp</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>FORALL</span><span class='hs-layout'>(</span><span class='hs-varid'>b</span><span class='hs-layout'>)</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-varid'>q</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>b</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</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-varid'>r</span><span class='hs-layout'>)</span>
<a name="line-119"></a> <span class='hs-varid'>lift2Sealed</span> <span class='hs-varid'>f</span> <span class='hs-varid'>iox</span> <span class='hs-varid'>ioy</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-conid'>Sealed</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>unseal</span> <span class='hs-varid'>seal</span> <span class='hs-varop'>`fmap`</span> <span class='hs-varid'>unsafeInterleaveIO</span> <span class='hs-varid'>iox</span>
<a name="line-120"></a> <span class='hs-conid'>Sealed</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>unseal</span> <span class='hs-varid'>seal</span> <span class='hs-varop'>`fmap`</span> <span class='hs-varid'>unsafeInterleaveIO</span> <span class='hs-varid'>ioy</span>
<a name="line-121"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>seal</span> <span class='hs-varop'>$</span> <span class='hs-varid'>f</span> <span class='hs-varid'>y</span> <span class='hs-varid'>x</span>
<a name="line-122"></a>
<a name="line-123"></a>
<a name="line-124"></a><a name="revertTentativeChanges"></a><span class='hs-definition'>revertTentativeChanges</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-125"></a><span class='hs-definition'>revertTentativeChanges</span> <span class='hs-keyglyph'>=</span>
<a name="line-126"></a> <span class='hs-keyword'>do</span> <span class='hs-varid'>cloneFile</span> <span class='hs-layout'>(</span><span class='hs-varid'>darcsdir</span><span class='hs-varop'>++</span><span class='hs-str'>"/inventory"</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>darcsdir</span><span class='hs-varop'>++</span><span class='hs-str'>"/tentative_inventory"</span><span class='hs-layout'>)</span>
<a name="line-127"></a> <span class='hs-varid'>writeBinFile</span> <span class='hs-layout'>(</span><span class='hs-varid'>darcsdir</span><span class='hs-varop'>++</span><span class='hs-str'>"/tentative_pristine"</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span>
<a name="line-128"></a>
<a name="line-129"></a><a name="oldRepoFailMsg"></a><span class='hs-definition'>oldRepoFailMsg</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-130"></a><span class='hs-definition'>oldRepoFailMsg</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"ERROR: repository upgrade required, try `darcs optimize --upgrade`\n"</span>
<a name="line-131"></a> <span class='hs-varop'>++</span> <span class='hs-str'>"See http://wiki.darcs.net/OF for more details."</span>
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