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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'>{-
<a name="line-4"></a>Copyright (C) 2004 David Roundy
<a name="line-5"></a>
<a name="line-6"></a>This program is free software; you can redistribute it and/or modify
<a name="line-7"></a>it under the terms of the GNU General Public License as published by
<a name="line-8"></a>the Free Software Foundation; either version 2, or (at your option)
<a name="line-9"></a>any later version.
<a name="line-10"></a>
<a name="line-11"></a>This program is distributed in the hope that it will be useful,
<a name="line-12"></a>but WITHOUT ANY WARRANTY; without even the implied warranty of
<a name="line-13"></a>MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
<a name="line-14"></a>GNU General Public License for more details.
<a name="line-15"></a>
<a name="line-16"></a>You should have received a copy of the GNU General Public License
<a name="line-17"></a>along with this program; see the file COPYING. If not, write to
<a name="line-18"></a>the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
<a name="line-19"></a>Boston, MA 02110-1301, USA.
<a name="line-20"></a>-}</span>
<a name="line-21"></a>
<a name="line-22"></a><span class='hs-comment'>{-|
<a name="line-23"></a>
<a name="line-24"></a> Path resolving:
<a name="line-25"></a>
<a name="line-26"></a> * An http URL contains the sequence @\"http(s):\/\/\"@.
<a name="line-27"></a>
<a name="line-28"></a> * A local filepath does not contain colons, except
<a name="line-29"></a> as second character (windows drives) when this
<a name="line-30"></a> filepath is meant to be used as repository name
<a name="line-31"></a>
<a name="line-32"></a> * A path that is neither an http URL nor a local file
<a name="line-33"></a> is an ssh-path.
<a name="line-34"></a>
<a name="line-35"></a> Examples:
<a name="line-36"></a>
<a name="line-37"></a> > /usr/repo/foo -- local file
<a name="line-38"></a> > c:/src/darcs -- local file
<a name="line-39"></a> > <a href="http://darcs.net/">http://darcs.net/</a> -- URL
<a name="line-40"></a> > peter@host:/path -- ssh
<a name="line-41"></a> > droundy@host: -- ssh
<a name="line-42"></a> > host:/path -- ssh
<a name="line-43"></a>
<a name="line-44"></a> This means that single-letter hosts in ssh-paths do not work,
<a name="line-45"></a> unless a username is provided.
<a name="line-46"></a>
<a name="line-47"></a> Perhaps ssh-paths should use @\"ssh:\/\/user\@host\/path\"@-syntax instead?
<a name="line-48"></a>-}</span>
<a name="line-49"></a>
<a name="line-50"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>URL</span> <span class='hs-layout'>(</span>
<a name="line-51"></a> <span class='hs-varid'>isFile</span><span class='hs-layout'>,</span> <span class='hs-varid'>isHttpUrl</span><span class='hs-layout'>,</span> <span class='hs-varid'>isSshUrl</span><span class='hs-layout'>,</span> <span class='hs-varid'>isRelative</span><span class='hs-layout'>,</span> <span class='hs-varid'>isAbsolute</span><span class='hs-layout'>,</span>
<a name="line-52"></a> <span class='hs-varid'>isSshNopath</span><span class='hs-layout'>,</span> <span class='hs-conid'>SshFilePath</span><span class='hs-layout'>,</span> <span class='hs-varid'>sshRepo</span><span class='hs-layout'>,</span> <span class='hs-varid'>sshUhost</span><span class='hs-layout'>,</span> <span class='hs-varid'>sshFile</span><span class='hs-layout'>,</span> <span class='hs-varid'>urlOf</span><span class='hs-layout'>,</span> <span class='hs-varid'>splitSshUrl</span>
<a name="line-53"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-54"></a>
<a name="line-55"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Global</span><span class='hs-layout'>(</span><span class='hs-varid'>darcsdir</span><span class='hs-layout'>)</span>
<a name="line-56"></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'>isInfixOf</span> <span class='hs-layout'>)</span>
<a name="line-57"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Char</span> <span class='hs-layout'>(</span> <span class='hs-varid'>isSpace</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-keyword'>as</span> <span class='hs-conid'>FP</span> <span class='hs-layout'>(</span><span class='hs-varid'>isRelative</span><span class='hs-layout'>,</span> <span class='hs-varid'>isAbsolute</span><span class='hs-layout'>,</span> <span class='hs-varid'>isValid</span><span class='hs-layout'>)</span>
<a name="line-59"></a>
<a name="line-60"></a><span class='hs-cpp'>#include "impossible.h"</span>
<a name="line-61"></a>
<a name="line-62"></a><a name="isRelative"></a><span class='hs-definition'>isRelative</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-63"></a><span class='hs-definition'>isRelative</span> <span class='hs-str'>""</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>bug</span> <span class='hs-str'>"Empty filename in isRelative"</span>
<a name="line-64"></a><span class='hs-definition'>isRelative</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FP</span><span class='hs-varop'>.</span><span class='hs-varid'>isRelative</span> <span class='hs-varid'>f</span>
<a name="line-65"></a>
<a name="line-66"></a><a name="isAbsolute"></a><span class='hs-definition'>isAbsolute</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-67"></a><span class='hs-definition'>isAbsolute</span> <span class='hs-str'>""</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>bug</span> <span class='hs-str'>"isAbsolute called with empty filename"</span>
<a name="line-68"></a><span class='hs-definition'>isAbsolute</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FP</span><span class='hs-varop'>.</span><span class='hs-varid'>isAbsolute</span> <span class='hs-varid'>f</span>
<a name="line-69"></a>
<a name="line-70"></a><a name="isFile"></a><span class='hs-definition'>isFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-71"></a><span class='hs-definition'>isFile</span> <span class='hs-varid'>f</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-varid'>fou</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-chr'>':'</span> <span class='hs-varop'>`notElem`</span> <span class='hs-varid'>fou</span> <span class='hs-varop'>&&</span> <span class='hs-conid'>FP</span><span class='hs-varop'>.</span><span class='hs-varid'>isValid</span> <span class='hs-varid'>f</span>
<a name="line-72"></a><span class='hs-definition'>isFile</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FP</span><span class='hs-varop'>.</span><span class='hs-varid'>isValid</span> <span class='hs-varid'>f</span>
<a name="line-73"></a>
<a name="line-74"></a><a name="isHttpUrl"></a><span class='hs-definition'>isHttpUrl</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-75"></a><span class='hs-definition'>isHttpUrl</span> <span class='hs-varid'>u</span> <span class='hs-keyglyph'>=</span>
<a name="line-76"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>u'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dropWhile</span> <span class='hs-varid'>isSpace</span> <span class='hs-varid'>u</span> <span class='hs-keyword'>in</span>
<a name="line-77"></a> <span class='hs-layout'>(</span><span class='hs-str'>"http://"</span> <span class='hs-varop'>`isPrefixOf`</span> <span class='hs-varid'>u'</span><span class='hs-layout'>)</span> <span class='hs-varop'>||</span> <span class='hs-layout'>(</span><span class='hs-str'>"https://"</span> <span class='hs-varop'>`isPrefixOf`</span> <span class='hs-varid'>u'</span><span class='hs-layout'>)</span>
<a name="line-78"></a>
<a name="line-79"></a>
<a name="line-80"></a><a name="isSshUrl"></a><span class='hs-definition'>isSshUrl</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-81"></a><span class='hs-definition'>isSshUrl</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isu'</span> <span class='hs-layout'>(</span><span class='hs-varid'>dropWhile</span> <span class='hs-varid'>isSpace</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-82"></a> <span class='hs-keyword'>where</span>
<a name="line-83"></a> <span class='hs-varid'>isu'</span> <span class='hs-varid'>s'</span>
<a name="line-84"></a> <span class='hs-keyglyph'>|</span> <span class='hs-str'>"ssh://"</span> <span class='hs-varop'>`isPrefixOf`</span> <span class='hs-varid'>s'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-85"></a> <span class='hs-keyglyph'>|</span> <span class='hs-str'>"://"</span> <span class='hs-varop'>`isInfixOf`</span> <span class='hs-varid'>s'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-86"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isFile</span> <span class='hs-varid'>s'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-87"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>":"</span> <span class='hs-varop'>`isInfixOf`</span> <span class='hs-varid'>s'</span>
<a name="line-88"></a>
<a name="line-89"></a><a name="isSshNopath"></a><span class='hs-definition'>isSshNopath</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-90"></a><span class='hs-definition'>isSshNopath</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>reverse</span> <span class='hs-varid'>s</span> <span class='hs-keyword'>of</span>
<a name="line-91"></a> <span class='hs-chr'>':'</span><span class='hs-conop'>:</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-chr'>':'</span> <span class='hs-varop'>`notElem`</span> <span class='hs-varid'>x</span>
<a name="line-92"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>False</span>
<a name="line-93"></a>
<a name="line-94"></a><a name="splitSshUrl"></a><span class='hs-comment'>-- | Gives the (user, host, dir) out of an ssh url</span>
<a name="line-95"></a><span class='hs-definition'>splitSshUrl</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>SshFilePath</span>
<a name="line-96"></a><span class='hs-definition'>splitSshUrl</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>|</span> <span class='hs-str'>"ssh://"</span> <span class='hs-varop'>`isPrefixOf`</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span>
<a name="line-97"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>s'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>drop</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-str'>"ssh://"</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>dropWhile</span> <span class='hs-varid'>isSpace</span> <span class='hs-varid'>s</span>
<a name="line-98"></a> <span class='hs-layout'>(</span><span class='hs-varid'>dir</span><span class='hs-layout'>,</span> <span class='hs-varid'>file</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cleanrepodir</span> <span class='hs-chr'>'/'</span> <span class='hs-varid'>s'</span>
<a name="line-99"></a> <span class='hs-keyword'>in</span>
<a name="line-100"></a> <span class='hs-conid'>SshFP</span> <span class='hs-layout'>{</span> <span class='hs-varid'>sshUhost</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>takeWhile</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'>s'</span>
<a name="line-101"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>sshRepo</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dir</span>
<a name="line-102"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>sshFile</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>file</span> <span class='hs-layout'>}</span>
<a name="line-103"></a><span class='hs-definition'>splitSshUrl</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span>
<a name="line-104"></a> <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>dir</span><span class='hs-layout'>,</span> <span class='hs-varid'>file</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cleanrepodir</span> <span class='hs-chr'>':'</span> <span class='hs-varid'>s</span> <span class='hs-keyword'>in</span>
<a name="line-105"></a> <span class='hs-conid'>SshFP</span> <span class='hs-layout'>{</span> <span class='hs-varid'>sshUhost</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dropWhile</span> <span class='hs-varid'>isSpace</span> <span class='hs-varop'>$</span> <span class='hs-varid'>takeWhile</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'>s</span>
<a name="line-106"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>sshRepo</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dir</span>
<a name="line-107"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>sshFile</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>file</span> <span class='hs-layout'>}</span>
<a name="line-108"></a>
<a name="line-109"></a>
<a name="line-110"></a><a name="cleanrepourl"></a><span class='hs-definition'>cleanrepourl</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>String</span><span class='hs-layout'>,</span> <span class='hs-conid'>String</span><span class='hs-layout'>)</span>
<a name="line-111"></a><span class='hs-definition'>cleanrepourl</span> <span class='hs-varid'>zzz</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>dd</span> <span class='hs-varop'>`isPrefixOf`</span> <span class='hs-varid'>zzz</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>[]</span><span class='hs-layout'>,</span> <span class='hs-varid'>drop</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-varid'>dd</span><span class='hs-layout'>)</span> <span class='hs-varid'>zzz</span><span class='hs-layout'>)</span>
<a name="line-112"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>dd</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>darcsdir</span><span class='hs-varop'>++</span><span class='hs-str'>"/"</span>
<a name="line-113"></a><span class='hs-definition'>cleanrepourl</span> <span class='hs-layout'>(</span><span class='hs-varid'>z</span><span class='hs-conop'>:</span><span class='hs-varid'>zs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-114"></a> <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>repo'</span><span class='hs-layout'>,</span><span class='hs-varid'>file</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cleanrepourl</span> <span class='hs-varid'>zs</span> <span class='hs-keyword'>in</span>
<a name="line-115"></a> <span class='hs-layout'>(</span><span class='hs-varid'>z</span> <span class='hs-conop'>:</span> <span class='hs-varid'>repo'</span><span class='hs-layout'>,</span> <span class='hs-varid'>file</span><span class='hs-layout'>)</span>
<a name="line-116"></a><span class='hs-definition'>cleanrepourl</span> <span class='hs-str'>""</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>[]</span><span class='hs-layout'>,</span><span class='hs-conid'>[]</span><span class='hs-layout'>)</span>
<a name="line-117"></a>
<a name="line-118"></a><a name="cleanrepodir"></a><span class='hs-definition'>cleanrepodir</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>String</span><span class='hs-layout'>,</span> <span class='hs-conid'>String</span><span class='hs-layout'>)</span>
<a name="line-119"></a><span class='hs-definition'>cleanrepodir</span> <span class='hs-varid'>sep</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cleanrepourl</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-varid'>sep</span><span class='hs-layout'>)</span>
<a name="line-120"></a>
<a name="line-121"></a><a name="SshFilePath"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>SshFilePath</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>SshFP</span> <span class='hs-layout'>{</span> <span class='hs-varid'>sshUhost</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-122"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>sshRepo</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-123"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>sshFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span><span class='hs-layout'>}</span>
<a name="line-124"></a>
<a name="line-125"></a><a name="urlOf"></a><span class='hs-definition'>urlOf</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SshFilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-126"></a><span class='hs-definition'>urlOf</span> <span class='hs-layout'>(</span><span class='hs-conid'>SshFP</span> <span class='hs-varid'>uhost</span> <span class='hs-varid'>dir</span> <span class='hs-varid'>file</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>uhost</span> <span class='hs-varop'>++</span> <span class='hs-str'>":"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>dir</span> <span class='hs-varop'>++</span> <span class='hs-str'>"/"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>darcsdir</span> <span class='hs-varop'>++</span> <span class='hs-str'>"/"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>file</span>
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