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<title>src/Darcs/Patch/ApplyMonad.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE TypeSynonymInstances, MultiParamTypeClasses #-}</span>
<a name="line-2"></a><span class='hs-comment'>-- Copyright (C) 2010, 2011 Petr Rockai</span>
<a name="line-3"></a><span class='hs-comment'>--</span>
<a name="line-4"></a><span class='hs-comment'>-- Permission is hereby granted, free of charge, to any person</span>
<a name="line-5"></a><span class='hs-comment'>-- obtaining a copy of this software and associated documentation</span>
<a name="line-6"></a><span class='hs-comment'>-- files (the "Software"), to deal in the Software without</span>
<a name="line-7"></a><span class='hs-comment'>-- restriction, including without limitation the rights to use, copy,</span>
<a name="line-8"></a><span class='hs-comment'>-- modify, merge, publish, distribute, sublicense, and/or sell copies</span>
<a name="line-9"></a><span class='hs-comment'>-- of the Software, and to permit persons to whom the Software is</span>
<a name="line-10"></a><span class='hs-comment'>-- furnished to do so, subject to the following conditions:</span>
<a name="line-11"></a><span class='hs-comment'>--</span>
<a name="line-12"></a><span class='hs-comment'>-- The above copyright notice and this permission notice shall be</span>
<a name="line-13"></a><span class='hs-comment'>-- included in all copies or substantial portions of the Software.</span>
<a name="line-14"></a><span class='hs-comment'>--</span>
<a name="line-15"></a><span class='hs-comment'>-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,</span>
<a name="line-16"></a><span class='hs-comment'>-- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF</span>
<a name="line-17"></a><span class='hs-comment'>-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND</span>
<a name="line-18"></a><span class='hs-comment'>-- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS</span>
<a name="line-19"></a><span class='hs-comment'>-- BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN</span>
<a name="line-20"></a><span class='hs-comment'>-- ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN</span>
<a name="line-21"></a><span class='hs-comment'>-- CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span>
<a name="line-22"></a><span class='hs-comment'>-- SOFTWARE.</span>
<a name="line-23"></a><span class='hs-keyword'>module</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'>ApplyMonad</span><span class='hs-layout'>(</span> <span class='hs-conid'>ApplyMonad</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'>ApplyMonadTrans</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'>withFileNames</span><span class='hs-layout'>,</span> <span class='hs-varid'>withFiles</span><span class='hs-layout'>,</span> <span class='hs-conid'>ToTree</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</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-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>B</span>
<a name="line-26"></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'>Lazy</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>BL</span>
<a name="line-27"></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'>Map</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>M</span>
<a name="line-28"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</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'>Monad</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>HSM</span>
<a name="line-29"></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-30"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>ByteStringUtils</span><span class='hs-layout'>(</span> <span class='hs-varid'>linesPS</span><span class='hs-layout'>,</span> <span class='hs-varid'>unlinesPS</span> <span class='hs-layout'>)</span>
<a name="line-31"></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'>FileName</span><span class='hs-layout'>(</span> <span class='hs-conid'>FileName</span><span class='hs-layout'>,</span> <span class='hs-varid'>movedirfilename</span><span class='hs-layout'>,</span> <span class='hs-varid'>fn2fp</span><span class='hs-layout'>,</span> <span class='hs-varid'>isParentOrEqOf</span> <span class='hs-layout'>)</span>
<a name="line-32"></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'>AnchoredPath</span><span class='hs-layout'>(</span> <span class='hs-varid'>floatPath</span><span class='hs-layout'>,</span> <span class='hs-conid'>AnchoredPath</span> <span class='hs-layout'>)</span>
<a name="line-33"></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-varop'>.</span><span class='hs-conid'>State</span><span class='hs-varop'>.</span><span class='hs-conid'>Strict</span>
<a name="line-34"></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-varop'>.</span><span class='hs-conid'>Identity</span><span class='hs-layout'>(</span> <span class='hs-conid'>Identity</span> <span class='hs-layout'>)</span>
<a name="line-35"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>MonadProgress</span>
<a name="line-36"></a>
<a name="line-37"></a><span class='hs-comment'>-- TODO should UUID/Object live somewhere more central?</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'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Prim</span><span class='hs-varop'>.</span><span class='hs-conid'>V3</span><span class='hs-varop'>.</span><span class='hs-conid'>ObjectMap</span> <span class='hs-layout'>(</span> <span class='hs-conid'>UUID</span><span class='hs-layout'>,</span> <span class='hs-conid'>ObjectMap</span><span class='hs-layout'>,</span> <span class='hs-conid'>DirContent</span> <span class='hs-layout'>)</span>
<a name="line-39"></a>
<a name="line-40"></a><a name="fn2ap"></a><span class='hs-definition'>fn2ap</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FileName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AnchoredPath</span>
<a name="line-41"></a><span class='hs-definition'>fn2ap</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>floatPath</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fn2fp</span>
<a name="line-42"></a>
<a name="line-43"></a><a name="ToTree"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>ToTree</span> <span class='hs-varid'>s</span> <span class='hs-keyword'>where</span>
<a name="line-44"></a> <span class='hs-varid'>toTree</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>s</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Tree</span> <span class='hs-varid'>m</span>
<a name="line-45"></a>
<a name="line-46"></a><a name="instance%20ToTree%20Tree"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>ToTree</span> <span class='hs-conid'>Tree</span> <span class='hs-keyword'>where</span>
<a name="line-47"></a> <span class='hs-varid'>toTree</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>id</span>
<a name="line-48"></a>
<a name="line-49"></a><a name="ApplyMonadTrans"></a><span class='hs-keyword'>class</span> <span class='hs-layout'>(</span><span class='hs-conid'>Functor</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>ApplyMonad</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyMonadOver</span> <span class='hs-varid'>m</span> <span class='hs-varid'>state</span><span class='hs-layout'>)</span> <span class='hs-varid'>state</span><span class='hs-layout'>)</span>
<a name="line-50"></a> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>ApplyMonadTrans</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-varid'>state</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varop'>*</span> <span class='hs-keyglyph'>-></span> <span class='hs-varop'>*</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varop'>*</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-51"></a> <span class='hs-keyword'>type</span> <span class='hs-conid'>ApplyMonadOver</span> <span class='hs-varid'>m</span> <span class='hs-varid'>state</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>*</span> <span class='hs-keyglyph'>-></span> <span class='hs-varop'>*</span>
<a name="line-52"></a> <span class='hs-varid'>runApplyMonad</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyMonadOver</span> <span class='hs-varid'>m</span> <span class='hs-varid'>state</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>state</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-varid'>state</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span>
<a name="line-53"></a>
<a name="line-54"></a><a name="instance%20ApplyMonadTrans%20m%20Tree"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>Functor</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>ApplyMonadTrans</span> <span class='hs-varid'>m</span> <span class='hs-conid'>Tree</span> <span class='hs-keyword'>where</span>
<a name="line-55"></a> <span class='hs-keyword'>type</span> <span class='hs-conid'>ApplyMonadOver</span> <span class='hs-varid'>m</span> <span class='hs-conid'>Tree</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>HSM</span><span class='hs-varop'>.</span><span class='hs-conid'>TreeMonad</span> <span class='hs-varid'>m</span>
<a name="line-56"></a> <span class='hs-varid'>runApplyMonad</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>HSM</span><span class='hs-varop'>.</span><span class='hs-varid'>virtualTreeMonad</span>
<a name="line-57"></a>
<a name="line-58"></a><a name="ApplyMonad"></a><span class='hs-keyword'>class</span> <span class='hs-layout'>(</span><span class='hs-conid'>Functor</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>Functor</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyMonadBase</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Monad</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyMonadBase</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>ToTree</span> <span class='hs-varid'>state</span><span class='hs-layout'>)</span>
<a name="line-59"></a> <span class='hs-comment'>-- ApplyMonadOver (ApplyMonadBase m) ~ m is *not* required in general,</span>
<a name="line-60"></a> <span class='hs-comment'>-- since ApplyMonadBase is not injective</span>
<a name="line-61"></a> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>ApplyMonad</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-varid'>state</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varop'>*</span> <span class='hs-keyglyph'>-></span> <span class='hs-varop'>*</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varop'>*</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-62"></a> <span class='hs-keyword'>type</span> <span class='hs-conid'>ApplyMonadBase</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>*</span> <span class='hs-keyglyph'>-></span> <span class='hs-varop'>*</span>
<a name="line-63"></a>
<a name="line-64"></a> <span class='hs-varid'>nestedApply</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>m</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>state</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyMonadBase</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-varid'>state</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyMonadBase</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-65"></a> <span class='hs-varid'>liftApply</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>state</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyMonadBase</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyMonadBase</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>state</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyMonadBase</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span>
<a name="line-66"></a> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-varid'>state</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyMonadBase</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-67"></a>
<a name="line-68"></a> <span class='hs-varid'>getApplyState</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-varid'>state</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyMonadBase</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-69"></a> <span class='hs-varid'>putApplyState</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>state</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-70"></a>
<a name="line-71"></a> <span class='hs-comment'>-- a semantic, ObjectMap-based interface for patch application</span>
<a name="line-72"></a> <span class='hs-varid'>editFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>state</span> <span class='hs-keyglyph'>~</span> <span class='hs-conid'>ObjectMap</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>UUID</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-73"></a> <span class='hs-varid'>editDirectory</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>state</span> <span class='hs-keyglyph'>~</span> <span class='hs-conid'>ObjectMap</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>UUID</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>DirContent</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>DirContent</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-74"></a>
<a name="line-75"></a> <span class='hs-comment'>-- a semantic, Tree-based interface for patch application</span>
<a name="line-76"></a> <span class='hs-varid'>mDoesDirectoryExist</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>state</span> <span class='hs-keyglyph'>~</span> <span class='hs-conid'>Tree</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>FileName</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>Bool</span>
<a name="line-77"></a> <span class='hs-varid'>mDoesFileExist</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>state</span> <span class='hs-keyglyph'>~</span> <span class='hs-conid'>Tree</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>FileName</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>Bool</span>
<a name="line-78"></a> <span class='hs-varid'>mReadFilePS</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>state</span> <span class='hs-keyglyph'>~</span> <span class='hs-conid'>Tree</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>FileName</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-79"></a> <span class='hs-varid'>mReadFilePSs</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>state</span> <span class='hs-keyglyph'>~</span> <span class='hs-conid'>Tree</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>FileName</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-keyglyph'>]</span>
<a name="line-80"></a> <span class='hs-varid'>mReadFilePSs</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>linesPS</span> <span class='hs-varop'>`fmap`</span> <span class='hs-varid'>mReadFilePS</span> <span class='hs-varid'>f</span>
<a name="line-81"></a> <span class='hs-varid'>mCreateDirectory</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>state</span> <span class='hs-keyglyph'>~</span> <span class='hs-conid'>Tree</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>FileName</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-82"></a> <span class='hs-varid'>mRemoveDirectory</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>state</span> <span class='hs-keyglyph'>~</span> <span class='hs-conid'>Tree</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>FileName</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-83"></a> <span class='hs-varid'>mCreateFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>state</span> <span class='hs-keyglyph'>~</span> <span class='hs-conid'>Tree</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>FileName</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-84"></a> <span class='hs-varid'>mCreateFile</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mModifyFilePS</span> <span class='hs-varid'>f</span> <span class='hs-varop'>$</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'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-85"></a> <span class='hs-varid'>mRemoveFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>state</span> <span class='hs-keyglyph'>~</span> <span class='hs-conid'>Tree</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>FileName</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-86"></a> <span class='hs-varid'>mRename</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>state</span> <span class='hs-keyglyph'>~</span> <span class='hs-conid'>Tree</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>FileName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FileName</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-87"></a> <span class='hs-varid'>mModifyFilePS</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>state</span> <span class='hs-keyglyph'>~</span> <span class='hs-conid'>Tree</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>FileName</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-88"></a> <span class='hs-varid'>mModifyFilePSs</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>state</span> <span class='hs-keyglyph'>~</span> <span class='hs-conid'>Tree</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>FileName</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-89"></a> <span class='hs-varid'>mModifyFilePSs</span> <span class='hs-varid'>f</span> <span class='hs-varid'>j</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mModifyFilePS</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-varid'>unlinesPS</span> <span class='hs-varop'>.</span> <span class='hs-varid'>j</span> <span class='hs-varop'>.</span> <span class='hs-varid'>linesPS</span><span class='hs-layout'>)</span>
<a name="line-90"></a> <span class='hs-varid'>mChangePref</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>state</span> <span class='hs-keyglyph'>~</span> <span class='hs-conid'>Tree</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-91"></a> <span class='hs-varid'>mChangePref</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-92"></a>
<a name="line-93"></a><a name="instance%20ApplyMonad%20(HSM.TreeMonad%20m)%20Tree"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>Functor</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>ApplyMonad</span> <span class='hs-layout'>(</span><span class='hs-conid'>HSM</span><span class='hs-varop'>.</span><span class='hs-conid'>TreeMonad</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-conid'>Tree</span> <span class='hs-keyword'>where</span>
<a name="line-94"></a> <span class='hs-keyword'>type</span> <span class='hs-conid'>ApplyMonadBase</span> <span class='hs-layout'>(</span><span class='hs-conid'>HSM</span><span class='hs-varop'>.</span><span class='hs-conid'>TreeMonad</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>m</span>
<a name="line-95"></a> <span class='hs-varid'>getApplyState</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>gets</span> <span class='hs-conid'>HSM</span><span class='hs-varop'>.</span><span class='hs-varid'>tree</span>
<a name="line-96"></a> <span class='hs-varid'>nestedApply</span> <span class='hs-varid'>a</span> <span class='hs-varid'>start</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>lift</span> <span class='hs-varop'>$</span> <span class='hs-varid'>runApplyMonad</span> <span class='hs-varid'>a</span> <span class='hs-varid'>start</span>
<a name="line-97"></a> <span class='hs-varid'>liftApply</span> <span class='hs-varid'>a</span> <span class='hs-varid'>start</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>gets</span> <span class='hs-conid'>HSM</span><span class='hs-varop'>.</span><span class='hs-varid'>tree</span>
<a name="line-98"></a> <span class='hs-varid'>lift</span> <span class='hs-varop'>$</span> <span class='hs-varid'>runApplyMonad</span> <span class='hs-layout'>(</span><span class='hs-varid'>lift</span> <span class='hs-varop'>$</span> <span class='hs-varid'>a</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varid'>start</span>
<a name="line-99"></a>
<a name="line-100"></a> <span class='hs-comment'>-- putApplyState needs some support from HSM</span>
<a name="line-101"></a>
<a name="line-102"></a> <span class='hs-varid'>mDoesDirectoryExist</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>HSM</span><span class='hs-varop'>.</span><span class='hs-varid'>directoryExists</span> <span class='hs-layout'>(</span><span class='hs-varid'>fn2ap</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span>
<a name="line-103"></a> <span class='hs-varid'>mDoesFileExist</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>HSM</span><span class='hs-varop'>.</span><span class='hs-varid'>fileExists</span> <span class='hs-layout'>(</span><span class='hs-varid'>fn2ap</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span>
<a name="line-104"></a> <span class='hs-varid'>mReadFilePS</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span> <span class='hs-varop'>`fmap`</span> <span class='hs-conid'>BL</span><span class='hs-varop'>.</span><span class='hs-varid'>toChunks</span> <span class='hs-varop'>`fmap`</span> <span class='hs-conid'>HSM</span><span class='hs-varop'>.</span><span class='hs-varid'>readFile</span> <span class='hs-layout'>(</span><span class='hs-varid'>fn2ap</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-105"></a> <span class='hs-varid'>mModifyFilePS</span> <span class='hs-varid'>p</span> <span class='hs-varid'>j</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>have</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>HSM</span><span class='hs-varop'>.</span><span class='hs-varid'>fileExists</span> <span class='hs-layout'>(</span><span class='hs-varid'>fn2ap</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-106"></a> <span class='hs-varid'>x</span> <span class='hs-keyglyph'><-</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>have</span> <span class='hs-keyword'>then</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span> <span class='hs-varop'>`fmap`</span> <span class='hs-conid'>BL</span><span class='hs-varop'>.</span><span class='hs-varid'>toChunks</span> <span class='hs-varop'>`fmap`</span> <span class='hs-conid'>HSM</span><span class='hs-varop'>.</span><span class='hs-varid'>readFile</span> <span class='hs-layout'>(</span><span class='hs-varid'>fn2ap</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-107"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>return</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-108"></a> <span class='hs-conid'>HSM</span><span class='hs-varop'>.</span><span class='hs-varid'>writeFile</span> <span class='hs-layout'>(</span><span class='hs-varid'>fn2ap</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-conid'>BL</span><span class='hs-varop'>.</span><span class='hs-varid'>fromChunks</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-conop'>:</span><span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-varop'>=<<</span> <span class='hs-varid'>j</span> <span class='hs-varid'>x</span>
<a name="line-109"></a> <span class='hs-varid'>mCreateDirectory</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>HSM</span><span class='hs-varop'>.</span><span class='hs-varid'>createDirectory</span> <span class='hs-layout'>(</span><span class='hs-varid'>fn2ap</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-110"></a> <span class='hs-varid'>mRename</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>HSM</span><span class='hs-varop'>.</span><span class='hs-varid'>rename</span> <span class='hs-layout'>(</span><span class='hs-varid'>fn2ap</span> <span class='hs-varid'>from</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fn2ap</span> <span class='hs-varid'>to</span><span class='hs-layout'>)</span>
<a name="line-111"></a> <span class='hs-varid'>mRemoveDirectory</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>HSM</span><span class='hs-varop'>.</span><span class='hs-varid'>unlink</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fn2ap</span>
<a name="line-112"></a> <span class='hs-varid'>mRemoveFile</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>HSM</span><span class='hs-varop'>.</span><span class='hs-varid'>unlink</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fn2ap</span>
<a name="line-113"></a>
<a name="line-114"></a><a name="OrigFileNameOf"></a><span class='hs-comment'>-- Latest name, current original name.</span>
<a name="line-115"></a><a name="OrigFileNameOf"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>OrigFileNameOf</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>FileName</span><span class='hs-layout'>,</span> <span class='hs-conid'>FileName</span><span class='hs-layout'>)</span>
<a name="line-116"></a><a name="FilePathMonadState"></a><span class='hs-comment'>-- Touched files, new file list (after removes etc.) and rename details</span>
<a name="line-117"></a><a name="FilePathMonadState"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>FilePathMonadState</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>FileName</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FileName</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>OrigFileNameOf</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-118"></a><a name="FilePathMonad"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>FilePathMonad</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>State</span> <span class='hs-conid'>FilePathMonadState</span>
<a name="line-119"></a>
<a name="line-120"></a><a name="trackOrigRename"></a><span class='hs-comment'>-- |trackOrigRename takes an old and new name and attempts to apply the mapping</span>
<a name="line-121"></a><span class='hs-comment'>-- to the OrigFileNameOf pair. If the old name is the most up-to-date name of</span>
<a name="line-122"></a><span class='hs-comment'>-- the file in question, the first element of the OFNO will match, otherwise if</span>
<a name="line-123"></a><span class='hs-comment'>-- the up-to-date name was originally old, the second element will match.</span>
<a name="line-124"></a><span class='hs-definition'>trackOrigRename</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FileName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FileName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>OrigFileNameOf</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>OrigFileNameOf</span>
<a name="line-125"></a><span class='hs-definition'>trackOrigRename</span> <span class='hs-varid'>old</span> <span class='hs-varid'>new</span> <span class='hs-varid'>pair</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-varid'>latest</span><span class='hs-layout'>,</span> <span class='hs-varid'>from</span><span class='hs-layout'>)</span>
<a name="line-126"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>old</span> <span class='hs-varop'>`isParentOrEqOf`</span> <span class='hs-varid'>latest</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>latest</span><span class='hs-layout'>,</span> <span class='hs-varid'>movedirfilename</span> <span class='hs-varid'>old</span> <span class='hs-varid'>new</span> <span class='hs-varid'>latest</span><span class='hs-layout'>)</span>
<a name="line-127"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>old</span> <span class='hs-varop'>`isParentOrEqOf`</span> <span class='hs-varid'>from</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>latest</span><span class='hs-layout'>,</span> <span class='hs-varid'>movedirfilename</span> <span class='hs-varid'>old</span> <span class='hs-varid'>new</span> <span class='hs-varid'>from</span><span class='hs-layout'>)</span>
<a name="line-128"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pair</span>
<a name="line-129"></a>
<a name="line-130"></a><a name="withFileNames"></a><span class='hs-comment'>-- |withFileNames takes a maybe list of existing rename-pairs, a list of</span>
<a name="line-131"></a><span class='hs-comment'>-- filenames and an action, and returns the resulting triple of affected files,</span>
<a name="line-132"></a><span class='hs-comment'>-- updated filename list and new rename details. If the rename-pairs are not</span>
<a name="line-133"></a><span class='hs-comment'>-- present, a new list is generated from the filesnames.</span>
<a name="line-134"></a><span class='hs-definition'>withFileNames</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>OrigFileNameOf</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FileName</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FilePathMonad</span> <span class='hs-varid'>a</span>
<a name="line-135"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FilePathMonadState</span>
<a name="line-136"></a><span class='hs-definition'>withFileNames</span> <span class='hs-varid'>mbofnos</span> <span class='hs-varid'>fps</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>execState</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-conid'>[]</span><span class='hs-layout'>,</span> <span class='hs-varid'>fps</span><span class='hs-layout'>,</span> <span class='hs-varid'>ofnos</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-137"></a> <span class='hs-varid'>ofnos</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>y</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>y</span><span class='hs-layout'>,</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>fps</span><span class='hs-layout'>)</span> <span class='hs-varid'>id</span> <span class='hs-varid'>mbofnos</span>
<a name="line-138"></a>
<a name="line-139"></a><a name="instance%20ApplyMonad%20FilePathMonad%20Tree"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>ApplyMonad</span> <span class='hs-conid'>FilePathMonad</span> <span class='hs-conid'>Tree</span> <span class='hs-keyword'>where</span>
<a name="line-140"></a> <span class='hs-keyword'>type</span> <span class='hs-conid'>ApplyMonadBase</span> <span class='hs-conid'>FilePathMonad</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Identity</span>
<a name="line-141"></a> <span class='hs-comment'>-- We can't check it actually is a directory here</span>
<a name="line-142"></a> <span class='hs-varid'>mDoesDirectoryExist</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>gets</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-varid'>fs</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>d</span> <span class='hs-varop'>`elem`</span> <span class='hs-varid'>fs</span>
<a name="line-143"></a>
<a name="line-144"></a> <span class='hs-varid'>mCreateDirectory</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mCreateFile</span>
<a name="line-145"></a> <span class='hs-varid'>mCreateFile</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modify</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-varid'>ms</span><span class='hs-layout'>,</span> <span class='hs-varid'>fs</span><span class='hs-layout'>,</span> <span class='hs-varid'>rns</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-conop'>:</span> <span class='hs-varid'>ms</span><span class='hs-layout'>,</span> <span class='hs-varid'>fs</span><span class='hs-layout'>,</span> <span class='hs-varid'>rns</span><span class='hs-layout'>)</span>
<a name="line-146"></a> <span class='hs-varid'>mRemoveFile</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modify</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-varid'>ms</span><span class='hs-layout'>,</span> <span class='hs-varid'>fs</span><span class='hs-layout'>,</span> <span class='hs-varid'>rns</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-conop'>:</span> <span class='hs-varid'>ms</span><span class='hs-layout'>,</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-varop'>/=</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-varid'>fs</span><span class='hs-layout'>,</span> <span class='hs-varid'>rns</span><span class='hs-layout'>)</span>
<a name="line-147"></a> <span class='hs-varid'>mRemoveDirectory</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mRemoveFile</span>
<a name="line-148"></a> <span class='hs-varid'>mRename</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span>
<a name="line-149"></a> <span class='hs-varid'>modify</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-varid'>ms</span><span class='hs-layout'>,</span> <span class='hs-varid'>fs</span><span class='hs-layout'>,</span> <span class='hs-varid'>rns</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span> <span class='hs-varid'>a</span> <span class='hs-conop'>:</span> <span class='hs-varid'>b</span> <span class='hs-conop'>:</span> <span class='hs-varid'>ms</span>
<a name="line-150"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>movedirfilename</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-varid'>fs</span>
<a name="line-151"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>trackOrigRename</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-varid'>rns</span><span class='hs-layout'>)</span>
<a name="line-152"></a> <span class='hs-varid'>mModifyFilePS</span> <span class='hs-varid'>f</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mCreateFile</span> <span class='hs-varid'>f</span>
<a name="line-153"></a>
<a name="line-154"></a><a name="instance%20MonadProgress%20FilePathMonad"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>MonadProgress</span> <span class='hs-conid'>FilePathMonad</span> <span class='hs-keyword'>where</span>
<a name="line-155"></a> <span class='hs-varid'>runProgressActions</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>silentlyRunProgressActions</span>
<a name="line-156"></a>
<a name="line-157"></a><a name="RestrictedApply"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>RestrictedApply</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>State</span> <span class='hs-layout'>(</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-conid'>Map</span> <span class='hs-conid'>FileName</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span>
<a name="line-158"></a>
<a name="line-159"></a><a name="instance%20ApplyMonad%20RestrictedApply%20Tree"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>ApplyMonad</span> <span class='hs-conid'>RestrictedApply</span> <span class='hs-conid'>Tree</span> <span class='hs-keyword'>where</span>
<a name="line-160"></a> <span class='hs-keyword'>type</span> <span class='hs-conid'>ApplyMonadBase</span> <span class='hs-conid'>RestrictedApply</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Identity</span>
<a name="line-161"></a> <span class='hs-varid'>mDoesDirectoryExist</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>True</span>
<a name="line-162"></a> <span class='hs-varid'>mCreateDirectory</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-163"></a> <span class='hs-varid'>mRemoveFile</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modify</span> <span class='hs-varop'>$</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>delete</span> <span class='hs-varid'>f</span>
<a name="line-164"></a> <span class='hs-varid'>mRemoveDirectory</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-165"></a> <span class='hs-varid'>mRename</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modify</span> <span class='hs-varop'>$</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>mapKeys</span> <span class='hs-layout'>(</span><span class='hs-varid'>movedirfilename</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-166"></a> <span class='hs-varid'>mModifyFilePS</span> <span class='hs-varid'>f</span> <span class='hs-varid'>j</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>look</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>gets</span> <span class='hs-varop'>$</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-varid'>f</span>
<a name="line-167"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>look</span> <span class='hs-keyword'>of</span>
<a name="line-168"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-169"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>bits</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-170"></a> <span class='hs-varid'>new</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>j</span> <span class='hs-varid'>bits</span>
<a name="line-171"></a> <span class='hs-varid'>modify</span> <span class='hs-varop'>$</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>insert</span> <span class='hs-varid'>f</span> <span class='hs-varid'>new</span>
<a name="line-172"></a>
<a name="line-173"></a><a name="instance%20MonadProgress%20RestrictedApply"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>MonadProgress</span> <span class='hs-conid'>RestrictedApply</span> <span class='hs-keyword'>where</span>
<a name="line-174"></a> <span class='hs-varid'>runProgressActions</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>silentlyRunProgressActions</span>
<a name="line-175"></a>
<a name="line-176"></a><a name="withFiles"></a><span class='hs-definition'>withFiles</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>FileName</span><span class='hs-layout'>,</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RestrictedApply</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>FileName</span><span class='hs-layout'>,</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-177"></a><span class='hs-definition'>withFiles</span> <span class='hs-varid'>p</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-varop'>$</span> <span class='hs-varid'>execState</span> <span class='hs-varid'>x</span> <span class='hs-varop'>$</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>fromList</span> <span class='hs-varid'>p</span>
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