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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE CPP #-}</span>
<a name="line-2"></a>
<a name="line-3"></a><span class='hs-comment'>-- Copyright (C) 2007 Eric Kow</span>
<a name="line-4"></a><span class='hs-comment'>--</span>
<a name="line-5"></a><span class='hs-comment'>-- This program is free software; you can redistribute it and/or modify</span>
<a name="line-6"></a><span class='hs-comment'>-- it under the terms of the GNU General Public License as published by</span>
<a name="line-7"></a><span class='hs-comment'>-- the Free Software Foundation; either version 2, or (at your option)</span>
<a name="line-8"></a><span class='hs-comment'>-- any later version.</span>
<a name="line-9"></a><span class='hs-comment'>--</span>
<a name="line-10"></a><span class='hs-comment'>-- This program is distributed in the hope that it will be useful,</span>
<a name="line-11"></a><span class='hs-comment'>-- but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="line-12"></a><span class='hs-comment'>-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="line-13"></a><span class='hs-comment'>-- GNU General Public License for more details.</span>
<a name="line-14"></a><span class='hs-comment'>--</span>
<a name="line-15"></a><span class='hs-comment'>-- You should have received a copy of the GNU General Public License</span>
<a name="line-16"></a><span class='hs-comment'>-- along with this program; see the file COPYING. If not, write to</span>
<a name="line-17"></a><span class='hs-comment'>-- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="line-18"></a><span class='hs-comment'>-- Boston, MA 02110-1301, USA.</span>
<a name="line-19"></a>
<a name="line-20"></a><span class='hs-comment'>-- | Various abstractions for dealing with paths.</span>
<a name="line-21"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>RepoPath</span> <span class='hs-layout'>(</span>
<a name="line-22"></a> <span class='hs-comment'>-- * AbsolutePath</span>
<a name="line-23"></a> <span class='hs-conid'>AbsolutePath</span><span class='hs-layout'>,</span>
<a name="line-24"></a> <span class='hs-varid'>makeAbsolute</span><span class='hs-layout'>,</span>
<a name="line-25"></a> <span class='hs-varid'>ioAbsolute</span><span class='hs-layout'>,</span>
<a name="line-26"></a> <span class='hs-varid'>rootDirectory</span><span class='hs-layout'>,</span>
<a name="line-27"></a> <span class='hs-comment'>-- * AbsolutePathOrStd</span>
<a name="line-28"></a> <span class='hs-conid'>AbsolutePathOrStd</span><span class='hs-layout'>,</span>
<a name="line-29"></a> <span class='hs-varid'>makeAbsoluteOrStd</span><span class='hs-layout'>,</span>
<a name="line-30"></a> <span class='hs-varid'>ioAbsoluteOrStd</span><span class='hs-layout'>,</span>
<a name="line-31"></a> <span class='hs-varid'>useAbsoluteOrStd</span><span class='hs-layout'>,</span>
<a name="line-32"></a> <span class='hs-varid'>stdOut</span><span class='hs-layout'>,</span>
<a name="line-33"></a> <span class='hs-comment'>-- * AbsoluteOrRemotePath</span>
<a name="line-34"></a> <span class='hs-conid'>AbsoluteOrRemotePath</span><span class='hs-layout'>,</span>
<a name="line-35"></a> <span class='hs-varid'>ioAbsoluteOrRemote</span><span class='hs-layout'>,</span>
<a name="line-36"></a> <span class='hs-varid'>isRemote</span><span class='hs-layout'>,</span>
<a name="line-37"></a> <span class='hs-comment'>-- * SubPath</span>
<a name="line-38"></a> <span class='hs-conid'>SubPath</span><span class='hs-layout'>,</span>
<a name="line-39"></a> <span class='hs-varid'>makeSubPathOf</span><span class='hs-layout'>,</span>
<a name="line-40"></a> <span class='hs-varid'>simpleSubPath</span><span class='hs-layout'>,</span>
<a name="line-41"></a> <span class='hs-comment'>-- * Miscellaneous</span>
<a name="line-42"></a> <span class='hs-varid'>sp2fn</span><span class='hs-layout'>,</span>
<a name="line-43"></a> <span class='hs-conid'>FilePathOrURL</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-44"></a> <span class='hs-conid'>FilePathLike</span><span class='hs-layout'>(</span><span class='hs-varid'>toFilePath</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-45"></a> <span class='hs-varid'>getCurrentDirectory</span><span class='hs-layout'>,</span>
<a name="line-46"></a> <span class='hs-varid'>setCurrentDirectory</span>
<a name="line-47"></a><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-48"></a>
<a name="line-49"></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-50"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-layout'>(</span> <span class='hs-varid'>isPrefixOf</span><span class='hs-layout'>,</span> <span class='hs-varid'>isSuffixOf</span> <span class='hs-layout'>)</span>
<a name="line-51"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Exception</span> <span class='hs-layout'>(</span> <span class='hs-varid'>tryJust</span><span class='hs-layout'>,</span> <span class='hs-varid'>bracket</span> <span class='hs-layout'>)</span>
<a name="line-52"></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'>Error</span> <span class='hs-layout'>(</span> <span class='hs-varid'>isDoesNotExistError</span> <span class='hs-layout'>)</span>
<a name="line-53"></a>
<a name="line-54"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>URL</span> <span class='hs-layout'>(</span> <span class='hs-varid'>isAbsolute</span><span class='hs-layout'>,</span> <span class='hs-varid'>isRelative</span><span class='hs-layout'>,</span> <span class='hs-varid'>isSshNopath</span> <span class='hs-layout'>)</span>
<a name="line-55"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Workaround</span> <span class='hs-layout'>(</span> <span class='hs-varid'>getCurrentDirectory</span> <span class='hs-layout'>)</span>
<a name="line-56"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</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'>setCurrentDirectory</span> <span class='hs-layout'>)</span>
<a name="line-57"></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'>doesDirectoryExist</span> <span class='hs-layout'>)</span>
<a name="line-58"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</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-keyword'>as</span> <span class='hs-conid'>FilePath</span> <span class='hs-layout'>(</span> <span class='hs-varid'>normalise</span> <span class='hs-layout'>)</span>
<a name="line-59"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>FilePath</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>NativeFilePath</span> <span class='hs-layout'>(</span> <span class='hs-varid'>takeFileName</span><span class='hs-layout'>,</span> <span class='hs-varid'>takeDirectory</span> <span class='hs-layout'>)</span>
<a name="line-60"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</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-keyword'>as</span> <span class='hs-conid'>PatchFileName</span> <span class='hs-layout'>(</span> <span class='hs-conid'>FileName</span><span class='hs-layout'>,</span> <span class='hs-varid'>fp2fn</span><span class='hs-layout'>,</span> <span class='hs-varid'>fn2fp</span> <span class='hs-layout'>)</span>
<a name="line-61"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Posix</span><span class='hs-varop'>.</span><span class='hs-conid'>Files</span> <span class='hs-layout'>(</span> <span class='hs-varid'>isDirectory</span><span class='hs-layout'>,</span> <span class='hs-varid'>getSymbolicLinkStatus</span> <span class='hs-layout'>)</span>
<a name="line-62"></a><span class='hs-cpp'>#include "impossible.h"</span>
<a name="line-63"></a>
<a name="line-64"></a><a name="FilePathLike"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>FilePathOrURL</span> <span class='hs-varid'>a</span> <span class='hs-keyword'>where</span>
<a name="line-65"></a> <span class='hs-varid'>toPath</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-66"></a>
<a name="line-67"></a><a name="FilePathLike"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>FilePathOrURL</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>FilePathLike</span> <span class='hs-varid'>a</span> <span class='hs-keyword'>where</span>
<a name="line-68"></a> <span class='hs-varid'>toFilePath</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FilePath</span>
<a name="line-69"></a>
<a name="line-70"></a><a name="SubPath"></a><span class='hs-comment'>-- | Paths which are relative to the local darcs repository and normalized.</span>
<a name="line-71"></a><a name="SubPath"></a><span class='hs-comment'>-- Note: These are understood not to have the dot in front.</span>
<a name="line-72"></a><a name="SubPath"></a><span class='hs-keyword'>newtype</span> <span class='hs-conid'>SubPath</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>SubPath</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Ord</span><span class='hs-layout'>)</span>
<a name="line-73"></a>
<a name="line-74"></a><a name="AbsolutePath"></a><span class='hs-keyword'>newtype</span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Ord</span><span class='hs-layout'>)</span>
<a name="line-75"></a>
<a name="line-76"></a><a name="AbsolutePathOrStd"></a><span class='hs-comment'>-- | This is for situations where a string (e.g. a command line argument)</span>
<a name="line-77"></a><a name="AbsolutePathOrStd"></a><span class='hs-comment'>-- may take the value \"-\" to mean stdin or stdout (which one depends on</span>
<a name="line-78"></a><a name="AbsolutePathOrStd"></a><span class='hs-comment'>-- context) instead of a normal file path.</span>
<a name="line-79"></a><a name="AbsolutePathOrStd"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>AbsolutePathOrStd</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>AP</span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>APStd</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Ord</span><span class='hs-layout'>)</span>
<a name="line-80"></a><a name="AbsoluteOrRemotePath"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>AbsoluteOrRemotePath</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>AbsP</span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>RmtP</span> <span class='hs-conid'>String</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Ord</span><span class='hs-layout'>)</span>
<a name="line-81"></a>
<a name="line-82"></a><a name="instance%20FilePathOrURL%20AbsolutePath"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>FilePathOrURL</span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-keyword'>where</span>
<a name="line-83"></a> <span class='hs-varid'>toPath</span> <span class='hs-layout'>(</span><span class='hs-conid'>AbsolutePath</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-84"></a><a name="instance%20FilePathOrURL%20SubPath"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>FilePathOrURL</span> <span class='hs-conid'>SubPath</span> <span class='hs-keyword'>where</span>
<a name="line-85"></a> <span class='hs-varid'>toPath</span> <span class='hs-layout'>(</span><span class='hs-conid'>SubPath</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-86"></a><a name="instance%20FilePathOrURL%20%5bc%5d"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>CharLike</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>FilePathOrURL</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span> <span class='hs-keyword'>where</span>
<a name="line-87"></a> <span class='hs-varid'>toPath</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toFilePath</span>
<a name="line-88"></a>
<a name="line-89"></a><a name="instance%20FilePathOrURL%20AbsoluteOrRemotePath"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>FilePathOrURL</span> <span class='hs-conid'>AbsoluteOrRemotePath</span> <span class='hs-keyword'>where</span>
<a name="line-90"></a> <span class='hs-varid'>toPath</span> <span class='hs-layout'>(</span><span class='hs-conid'>AbsP</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toPath</span> <span class='hs-varid'>a</span>
<a name="line-91"></a> <span class='hs-varid'>toPath</span> <span class='hs-layout'>(</span><span class='hs-conid'>RmtP</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>r</span>
<a name="line-92"></a>
<a name="line-93"></a><a name="instance%20FilePathOrURL%20PatchFileName.FileName"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>FilePathOrURL</span> <span class='hs-conid'>PatchFileName</span><span class='hs-varop'>.</span><span class='hs-conid'>FileName</span> <span class='hs-keyword'>where</span>
<a name="line-94"></a> <span class='hs-varid'>toPath</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PatchFileName</span><span class='hs-varop'>.</span><span class='hs-varid'>fn2fp</span>
<a name="line-95"></a><a name="instance%20FilePathLike%20PatchFileName.FileName"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>FilePathLike</span> <span class='hs-conid'>PatchFileName</span><span class='hs-varop'>.</span><span class='hs-conid'>FileName</span> <span class='hs-keyword'>where</span>
<a name="line-96"></a> <span class='hs-varid'>toFilePath</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PatchFileName</span><span class='hs-varop'>.</span><span class='hs-varid'>fn2fp</span>
<a name="line-97"></a>
<a name="line-98"></a><a name="instance%20FilePathLike%20AbsolutePath"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>FilePathLike</span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-keyword'>where</span>
<a name="line-99"></a> <span class='hs-varid'>toFilePath</span> <span class='hs-layout'>(</span><span class='hs-conid'>AbsolutePath</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-100"></a><a name="instance%20FilePathLike%20SubPath"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>FilePathLike</span> <span class='hs-conid'>SubPath</span> <span class='hs-keyword'>where</span>
<a name="line-101"></a> <span class='hs-varid'>toFilePath</span> <span class='hs-layout'>(</span><span class='hs-conid'>SubPath</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-102"></a>
<a name="line-103"></a><a name="CharLike"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>CharLike</span> <span class='hs-varid'>c</span> <span class='hs-keyword'>where</span>
<a name="line-104"></a> <span class='hs-varid'>toChar</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Char</span>
<a name="line-105"></a> <span class='hs-varid'>fromChar</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>c</span>
<a name="line-106"></a><a name="instance%20CharLike%20Char"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>CharLike</span> <span class='hs-conid'>Char</span> <span class='hs-keyword'>where</span>
<a name="line-107"></a> <span class='hs-varid'>toChar</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>id</span>
<a name="line-108"></a> <span class='hs-varid'>fromChar</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>id</span>
<a name="line-109"></a>
<a name="line-110"></a><a name="instance%20FilePathLike%20%5bc%5d"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>CharLike</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>FilePathLike</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span> <span class='hs-keyword'>where</span>
<a name="line-111"></a> <span class='hs-varid'>toFilePath</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>toChar</span>
<a name="line-112"></a>
<a name="line-113"></a><a name="makeSubPathOf"></a><span class='hs-comment'>-- | Make the second path relative to the first, if possible</span>
<a name="line-114"></a><span class='hs-definition'>makeSubPathOf</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>SubPath</span>
<a name="line-115"></a><span class='hs-definition'>makeSubPathOf</span> <span class='hs-layout'>(</span><span class='hs-conid'>AbsolutePath</span> <span class='hs-varid'>p1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>AbsolutePath</span> <span class='hs-varid'>p2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-116"></a> <span class='hs-comment'>-- The slash prevents "foobar" from being treated as relative to "foo"</span>
<a name="line-117"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>p1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>p2</span> <span class='hs-varop'>||</span> <span class='hs-layout'>(</span><span class='hs-varid'>p1</span> <span class='hs-varop'>++</span> <span class='hs-str'>"/"</span><span class='hs-layout'>)</span> <span class='hs-varop'>`isPrefixOf`</span> <span class='hs-varid'>p2</span>
<a name="line-118"></a> <span class='hs-keyword'>then</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-conid'>SubPath</span> <span class='hs-varop'>$</span> <span class='hs-varid'>drop</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-varid'>p1</span> <span class='hs-varop'>+</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>p2</span>
<a name="line-119"></a> <span class='hs-keyword'>else</span> <span class='hs-conid'>Nothing</span>
<a name="line-120"></a>
<a name="line-121"></a><a name="simpleSubPath"></a><span class='hs-definition'>simpleSubPath</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>SubPath</span>
<a name="line-122"></a><span class='hs-definition'>simpleSubPath</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>null</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>bug</span> <span class='hs-str'>"simpleSubPath called with empty path"</span>
<a name="line-123"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isRelative</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-conid'>SubPath</span> <span class='hs-varop'>$</span> <span class='hs-conid'>FilePath</span><span class='hs-varop'>.</span><span class='hs-varid'>normalise</span> <span class='hs-varop'>$</span> <span class='hs-varid'>pathToPosix</span> <span class='hs-varid'>x</span>
<a name="line-124"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-125"></a>
<a name="line-126"></a><a name="doesDirectoryReallyExist"></a><span class='hs-comment'>-- | Ensure directory exists and is not a symbolic link.</span>
<a name="line-127"></a><span class='hs-definition'>doesDirectoryReallyExist</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-conid'>Bool</span>
<a name="line-128"></a><span class='hs-definition'>doesDirectoryReallyExist</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-129"></a> <span class='hs-varid'>x</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>tryJust</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>x</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>if</span> <span class='hs-varid'>isDoesNotExistError</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>then</span> <span class='hs-conid'>Just</span> <span class='hs-conid'>()</span> <span class='hs-keyword'>else</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-130"></a> <span class='hs-varid'>isDirectory</span> <span class='hs-varop'><$></span> <span class='hs-varid'>getSymbolicLinkStatus</span> <span class='hs-varid'>f</span>
<a name="line-131"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>of</span>
<a name="line-132"></a> <span class='hs-conid'>Left</span> <span class='hs-conid'>()</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>False</span>
<a name="line-133"></a> <span class='hs-conid'>Right</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>y</span>
<a name="line-134"></a>
<a name="line-135"></a><a name="ioAbsolute"></a><span class='hs-comment'>-- | Interpret a possibly relative path wrt the current working directory.</span>
<a name="line-136"></a><span class='hs-definition'>ioAbsolute</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>AbsolutePath</span>
<a name="line-137"></a><span class='hs-definition'>ioAbsolute</span> <span class='hs-varid'>dir</span> <span class='hs-keyglyph'>=</span>
<a name="line-138"></a> <span class='hs-keyword'>do</span> <span class='hs-varid'>isdir</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>doesDirectoryReallyExist</span> <span class='hs-varid'>dir</span>
<a name="line-139"></a> <span class='hs-varid'>here</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getCurrentDirectory</span>
<a name="line-140"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>isdir</span>
<a name="line-141"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>bracket</span> <span class='hs-layout'>(</span><span class='hs-varid'>setCurrentDirectory</span> <span class='hs-varid'>dir</span><span class='hs-layout'>)</span>
<a name="line-142"></a> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-varop'>$</span> <span class='hs-varid'>setCurrentDirectory</span> <span class='hs-varop'>$</span> <span class='hs-varid'>toFilePath</span> <span class='hs-varid'>here</span><span class='hs-layout'>)</span>
<a name="line-143"></a> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-varid'>getCurrentDirectory</span><span class='hs-layout'>)</span>
<a name="line-144"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>super_dir</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-conid'>NativeFilePath</span><span class='hs-varop'>.</span><span class='hs-varid'>takeDirectory</span> <span class='hs-varid'>dir</span> <span class='hs-keyword'>of</span>
<a name="line-145"></a> <span class='hs-str'>""</span> <span class='hs-keyglyph'>-></span> <span class='hs-str'>"."</span>
<a name="line-146"></a> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>d</span>
<a name="line-147"></a> <span class='hs-varid'>file</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>NativeFilePath</span><span class='hs-varop'>.</span><span class='hs-varid'>takeFileName</span> <span class='hs-varid'>dir</span>
<a name="line-148"></a> <span class='hs-keyword'>in</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>abs_dir</span> <span class='hs-keyglyph'><-</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>dir</span> <span class='hs-varop'>==</span> <span class='hs-varid'>super_dir</span>
<a name="line-149"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-varid'>dir</span>
<a name="line-150"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>ioAbsolute</span> <span class='hs-varid'>super_dir</span>
<a name="line-151"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>makeAbsolute</span> <span class='hs-varid'>abs_dir</span> <span class='hs-varid'>file</span>
<a name="line-152"></a>
<a name="line-153"></a><a name="makeAbsolute"></a><span class='hs-comment'>-- | Take an absolute path and a string representing a (possibly relative)</span>
<a name="line-154"></a><span class='hs-comment'>-- path and combine them into an absolute path. If the second argument is</span>
<a name="line-155"></a><span class='hs-comment'>-- already absolute, then the first argument gets ignored. This function also</span>
<a name="line-156"></a><span class='hs-comment'>-- takes care that the result is converted to Posix convention and</span>
<a name="line-157"></a><span class='hs-comment'>-- normalized. Also, parent directories (\"..\") at the front of the string</span>
<a name="line-158"></a><span class='hs-comment'>-- argument get canceled out against trailing directory parts of the</span>
<a name="line-159"></a><span class='hs-comment'>-- absolute path argument.</span>
<a name="line-160"></a><span class='hs-comment'>--</span>
<a name="line-161"></a><span class='hs-comment'>-- Regarding the last point, someone more familiar with how these functions</span>
<a name="line-162"></a><span class='hs-comment'>-- are used should verify that this is indeed necessary or at least useful.</span>
<a name="line-163"></a><span class='hs-definition'>makeAbsolute</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AbsolutePath</span>
<a name="line-164"></a><span class='hs-definition'>makeAbsolute</span> <span class='hs-varid'>a</span> <span class='hs-varid'>dir</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>null</span> <span class='hs-varid'>dir</span><span class='hs-layout'>)</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>isAbsolute</span> <span class='hs-varid'>dir</span>
<a name="line-165"></a> <span class='hs-keyword'>then</span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-layout'>(</span><span class='hs-varid'>normSlashes</span> <span class='hs-varid'>dir'</span><span class='hs-layout'>)</span>
<a name="line-166"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>ma</span> <span class='hs-varid'>a</span> <span class='hs-varid'>dir'</span>
<a name="line-167"></a> <span class='hs-keyword'>where</span>
<a name="line-168"></a> <span class='hs-varid'>dir'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FilePath</span><span class='hs-varop'>.</span><span class='hs-varid'>normalise</span> <span class='hs-varop'>$</span> <span class='hs-varid'>pathToPosix</span> <span class='hs-varid'>dir</span>
<a name="line-169"></a> <span class='hs-comment'>-- Why do we care to reduce ".." here?</span>
<a name="line-170"></a> <span class='hs-comment'>-- Why not do this throughout the whole path, i.e. "x/y/../z" -> "x/z" ?</span>
<a name="line-171"></a> <span class='hs-varid'>ma</span> <span class='hs-varid'>here</span> <span class='hs-layout'>(</span><span class='hs-chr'>'.'</span><span class='hs-conop'>:</span><span class='hs-chr'>'.'</span><span class='hs-conop'>:</span><span class='hs-chr'>'/'</span><span class='hs-conop'>:</span><span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ma</span> <span class='hs-layout'>(</span><span class='hs-varid'>takeDirectory</span> <span class='hs-varid'>here</span><span class='hs-layout'>)</span> <span class='hs-varid'>r</span>
<a name="line-172"></a> <span class='hs-varid'>ma</span> <span class='hs-varid'>here</span> <span class='hs-str'>".."</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>takeDirectory</span> <span class='hs-varid'>here</span>
<a name="line-173"></a> <span class='hs-varid'>ma</span> <span class='hs-varid'>here</span> <span class='hs-str'>"."</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>here</span>
<a name="line-174"></a> <span class='hs-varid'>ma</span> <span class='hs-varid'>here</span> <span class='hs-str'>""</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>here</span>
<a name="line-175"></a> <span class='hs-varid'>ma</span> <span class='hs-varid'>here</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>here</span> <span class='hs-varop'>/-</span> <span class='hs-layout'>(</span><span class='hs-chr'>'/'</span><span class='hs-conop'>:</span><span class='hs-varid'>r</span><span class='hs-layout'>)</span>
<a name="line-176"></a>
<a name="line-177"></a><a name="/-"></a><span class='hs-layout'>(</span><span class='hs-varop'>/-</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AbsolutePath</span>
<a name="line-178"></a><a name="x"></a><span class='hs-definition'>x</span> <span class='hs-varop'>/-</span> <span class='hs-layout'>(</span><span class='hs-chr'>'/'</span><span class='hs-conop'>:</span><span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span> <span class='hs-varop'>/-</span> <span class='hs-varid'>r</span>
<a name="line-179"></a><span class='hs-layout'>(</span><span class='hs-conid'>AbsolutePath</span> <span class='hs-str'>"/"</span><span class='hs-layout'>)</span> <span class='hs-varop'>/-</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-layout'>(</span><span class='hs-chr'>'/'</span><span class='hs-conop'>:</span><span class='hs-varid'>simpleClean</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span>
<a name="line-180"></a><span class='hs-layout'>(</span><span class='hs-conid'>AbsolutePath</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varop'>/-</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-varop'>++</span><span class='hs-chr'>'/'</span><span class='hs-conop'>:</span><span class='hs-varid'>simpleClean</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span>
<a name="line-181"></a>
<a name="line-182"></a><a name="simpleClean"></a><span class='hs-comment'>-- | Convert to posix, remove trailing slashes, and (under Posix)</span>
<a name="line-183"></a><span class='hs-comment'>-- reduce multiple leading slashes to one.</span>
<a name="line-184"></a><span class='hs-definition'>simpleClean</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-185"></a><span class='hs-definition'>simpleClean</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>normSlashes</span> <span class='hs-varop'>.</span> <span class='hs-varid'>reverse</span> <span class='hs-varop'>.</span> <span class='hs-varid'>dropWhile</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-chr'>'/'</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>reverse</span> <span class='hs-varop'>.</span> <span class='hs-varid'>pathToPosix</span>
<a name="line-186"></a>
<a name="line-187"></a><a name="rootDirectory"></a><span class='hs-comment'>-- | The root directory as an absolute path.</span>
<a name="line-188"></a><span class='hs-definition'>rootDirectory</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AbsolutePath</span>
<a name="line-189"></a><span class='hs-definition'>rootDirectory</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-str'>"/"</span>
<a name="line-190"></a>
<a name="line-191"></a><a name="makeAbsoluteOrStd"></a><span class='hs-definition'>makeAbsoluteOrStd</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AbsolutePathOrStd</span>
<a name="line-192"></a><span class='hs-definition'>makeAbsoluteOrStd</span> <span class='hs-keyword'>_</span> <span class='hs-str'>"-"</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>APStd</span>
<a name="line-193"></a><span class='hs-definition'>makeAbsoluteOrStd</span> <span class='hs-varid'>a</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>AP</span> <span class='hs-varop'>$</span> <span class='hs-varid'>makeAbsolute</span> <span class='hs-varid'>a</span> <span class='hs-varid'>p</span>
<a name="line-194"></a>
<a name="line-195"></a><a name="stdOut"></a><span class='hs-definition'>stdOut</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AbsolutePathOrStd</span>
<a name="line-196"></a><span class='hs-definition'>stdOut</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>APStd</span>
<a name="line-197"></a>
<a name="line-198"></a><a name="ioAbsoluteOrStd"></a><span class='hs-definition'>ioAbsoluteOrStd</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-conid'>AbsolutePathOrStd</span>
<a name="line-199"></a><span class='hs-definition'>ioAbsoluteOrStd</span> <span class='hs-str'>"-"</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>APStd</span>
<a name="line-200"></a><span class='hs-definition'>ioAbsoluteOrStd</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>AP</span> <span class='hs-varop'>`fmap`</span> <span class='hs-varid'>ioAbsolute</span> <span class='hs-varid'>p</span>
<a name="line-201"></a>
<a name="line-202"></a><a name="useAbsoluteOrStd"></a><span class='hs-comment'>-- | Execute either the first or the second argument action, depending on</span>
<a name="line-203"></a><span class='hs-comment'>-- whether the given path is an 'AbsolutePath' or stdin/stdout.</span>
<a name="line-204"></a><span class='hs-definition'>useAbsoluteOrStd</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>AbsolutePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AbsolutePathOrStd</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span>
<a name="line-205"></a><span class='hs-definition'>useAbsoluteOrStd</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>f</span> <span class='hs-conid'>APStd</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span>
<a name="line-206"></a><span class='hs-definition'>useAbsoluteOrStd</span> <span class='hs-varid'>f</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>AP</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varid'>x</span>
<a name="line-207"></a>
<a name="line-208"></a><a name="ioAbsoluteOrRemote"></a><span class='hs-definition'>ioAbsoluteOrRemote</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-conid'>AbsoluteOrRemotePath</span>
<a name="line-209"></a><span class='hs-definition'>ioAbsoluteOrRemote</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-210"></a> <span class='hs-varid'>isdir</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>doesDirectoryExist</span> <span class='hs-varid'>p</span>
<a name="line-211"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>not</span> <span class='hs-varid'>isdir</span>
<a name="line-212"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>RmtP</span> <span class='hs-varop'>$</span>
<a name="line-213"></a> <span class='hs-keyword'>case</span> <span class='hs-conid'>()</span> <span class='hs-keyword'>of</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isSshNopath</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>p</span><span class='hs-varop'>++</span><span class='hs-str'>"."</span>
<a name="line-214"></a> <span class='hs-keyglyph'>|</span> <span class='hs-str'>"/"</span> <span class='hs-varop'>`isSuffixOf`</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>init</span> <span class='hs-varid'>p</span>
<a name="line-215"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>p</span>
<a name="line-216"></a> <span class='hs-keyword'>else</span> <span class='hs-conid'>AbsP</span> <span class='hs-varop'>`fmap`</span> <span class='hs-varid'>ioAbsolute</span> <span class='hs-varid'>p</span>
<a name="line-217"></a>
<a name="line-218"></a><a name="isRemote"></a><span class='hs-definition'>isRemote</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AbsoluteOrRemotePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-219"></a><span class='hs-definition'>isRemote</span> <span class='hs-layout'>(</span><span class='hs-conid'>RmtP</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-220"></a><span class='hs-definition'>isRemote</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-221"></a>
<a name="line-222"></a><a name="takeDirectory"></a><span class='hs-definition'>takeDirectory</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AbsolutePath</span>
<a name="line-223"></a><span class='hs-definition'>takeDirectory</span> <span class='hs-layout'>(</span><span class='hs-conid'>AbsolutePath</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-224"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>reverse</span> <span class='hs-varop'>$</span> <span class='hs-varid'>drop</span> <span class='hs-num'>1</span> <span class='hs-varop'>$</span> <span class='hs-varid'>dropWhile</span> <span class='hs-layout'>(</span><span class='hs-varop'>/=</span><span class='hs-chr'>'/'</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>reverse</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>of</span>
<a name="line-225"></a> <span class='hs-str'>""</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-str'>"/"</span>
<a name="line-226"></a> <span class='hs-varid'>x'</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-varid'>x'</span>
<a name="line-227"></a>
<a name="line-228"></a><a name="instance%20Show%20AbsolutePath"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-keyword'>where</span>
<a name="line-229"></a> <span class='hs-varid'>show</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>show</span> <span class='hs-varop'>.</span> <span class='hs-varid'>toFilePath</span>
<a name="line-230"></a><a name="instance%20Show%20SubPath"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>SubPath</span> <span class='hs-keyword'>where</span>
<a name="line-231"></a> <span class='hs-varid'>show</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>show</span> <span class='hs-varop'>.</span> <span class='hs-varid'>toFilePath</span>
<a name="line-232"></a><a name="instance%20Show%20AbsolutePathOrStd"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>AbsolutePathOrStd</span> <span class='hs-keyword'>where</span>
<a name="line-233"></a> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>AP</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>show</span> <span class='hs-varid'>a</span>
<a name="line-234"></a> <span class='hs-varid'>show</span> <span class='hs-conid'>APStd</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"standard input/output"</span>
<a name="line-235"></a><a name="instance%20Show%20AbsoluteOrRemotePath"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>AbsoluteOrRemotePath</span> <span class='hs-keyword'>where</span>
<a name="line-236"></a> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>AbsP</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>show</span> <span class='hs-varid'>a</span>
<a name="line-237"></a> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>RmtP</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>show</span> <span class='hs-varid'>r</span>
<a name="line-238"></a>
<a name="line-239"></a><a name="pathToPosix"></a><span class='hs-comment'>-- | Normalize the path separator to Posix style (slash, not backslash).</span>
<a name="line-240"></a><span class='hs-comment'>-- This only affects Windows systems.</span>
<a name="line-241"></a><span class='hs-definition'>pathToPosix</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FilePath</span>
<a name="line-242"></a><span class='hs-definition'>pathToPosix</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>convert</span> <span class='hs-keyword'>where</span>
<a name="line-243"></a><span class='hs-cpp'>#ifdef WIN32</span>
<a name="line-244"></a> <span class='hs-varid'>convert</span> <span class='hs-chr'>'\\'</span> <span class='hs-keyglyph'>=</span> <span class='hs-chr'>'/'</span>
<a name="line-245"></a><span class='hs-cpp'>#endif</span>
<a name="line-246"></a> <span class='hs-varid'>convert</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>c</span>
<a name="line-247"></a>
<a name="line-248"></a><a name="normSlashes"></a><span class='hs-comment'>-- | Reduce multiple leading slashes to one. This only affects Posix systems.</span>
<a name="line-249"></a><span class='hs-definition'>normSlashes</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FilePath</span>
<a name="line-250"></a><span class='hs-cpp'>#ifndef WIN32</span>
<a name="line-251"></a><span class='hs-comment'>-- multiple slashes in front are ignored under Posix</span>
<a name="line-252"></a><span class='hs-definition'>normSlashes</span> <span class='hs-layout'>(</span><span class='hs-chr'>'/'</span><span class='hs-conop'>:</span><span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-chr'>'/'</span> <span class='hs-conop'>:</span> <span class='hs-varid'>dropWhile</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span> <span class='hs-chr'>'/'</span><span class='hs-layout'>)</span> <span class='hs-varid'>p</span>
<a name="line-253"></a><span class='hs-cpp'>#endif</span>
<a name="line-254"></a><span class='hs-definition'>normSlashes</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span>
<a name="line-255"></a>
<a name="line-256"></a><a name="getCurrentDirectory"></a><span class='hs-definition'>getCurrentDirectory</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>AbsolutePath</span>
<a name="line-257"></a><span class='hs-definition'>getCurrentDirectory</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>AbsolutePath</span> <span class='hs-varop'>`fmap`</span> <span class='hs-conid'>Workaround</span><span class='hs-varop'>.</span><span class='hs-varid'>getCurrentDirectory</span>
<a name="line-258"></a>
<a name="line-259"></a><a name="setCurrentDirectory"></a><span class='hs-definition'>setCurrentDirectory</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePathLike</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-260"></a><span class='hs-definition'>setCurrentDirectory</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Directory</span><span class='hs-varop'>.</span><span class='hs-varid'>setCurrentDirectory</span> <span class='hs-varop'>.</span> <span class='hs-varid'>toFilePath</span>
<a name="line-261"></a>
<a name="line-262"></a><a name="sp2fn"></a><span class='hs-comment'>{-# INLINE sp2fn #-}</span>
<a name="line-263"></a><span class='hs-definition'>sp2fn</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SubPath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchFileName</span><span class='hs-varop'>.</span><span class='hs-conid'>FileName</span>
<a name="line-264"></a><span class='hs-definition'>sp2fn</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PatchFileName</span><span class='hs-varop'>.</span><span class='hs-varid'>fp2fn</span> <span class='hs-varop'>.</span> <span class='hs-varid'>toFilePath</span>
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