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<title>src/IDE/Utils/VersionUtils.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE ScopedTypeVariables, BangPatterns #-}</span>
<a name="line-2"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-3"></a><span class='hs-comment'>--</span>
<a name="line-4"></a><span class='hs-comment'>-- Module : IDE.Utils.VersionUtils</span>
<a name="line-5"></a><span class='hs-comment'>-- Copyright : 2007-2011 Juergen Nicklisch-Franken, Hamish Mackenzie</span>
<a name="line-6"></a><span class='hs-comment'>-- License : GPL Nothing</span>
<a name="line-7"></a><span class='hs-comment'>--</span>
<a name="line-8"></a><span class='hs-comment'>-- Maintainer : maintainer@leksah.org</span>
<a name="line-9"></a><span class='hs-comment'>-- Stability : provisional</span>
<a name="line-10"></a><span class='hs-comment'>-- Portability :</span>
<a name="line-11"></a><span class='hs-comment'>--</span>
<a name="line-12"></a><span class='hs-comment'>-- |</span>
<a name="line-13"></a><span class='hs-comment'>--</span>
<a name="line-14"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-15"></a>
<a name="line-16"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>IDE</span><span class='hs-varop'>.</span><span class='hs-conid'>Utils</span><span class='hs-varop'>.</span><span class='hs-conid'>VersionUtils</span> <span class='hs-layout'>(</span>
<a name="line-17"></a> <span class='hs-varid'>getHaddockVersion</span>
<a name="line-18"></a><span class='hs-layout'>,</span> <span class='hs-varid'>getGhcVersion</span>
<a name="line-19"></a><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-20"></a>
<a name="line-21"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>IDE</span><span class='hs-varop'>.</span><span class='hs-conid'>Utils</span><span class='hs-varop'>.</span><span class='hs-conid'>Tool</span> <span class='hs-layout'>(</span><span class='hs-varid'>toolline</span><span class='hs-layout'>,</span> <span class='hs-varid'>runTool'</span><span class='hs-layout'>)</span>
<a name="line-22"></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'>ord</span><span class='hs-layout'>)</span>
<a name="line-23"></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'>List</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>List</span> <span class='hs-layout'>(</span><span class='hs-varid'>init</span><span class='hs-layout'>)</span>
<a name="line-24"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Log</span><span class='hs-varop'>.</span><span class='hs-conid'>Logger</span> <span class='hs-layout'>(</span><span class='hs-varid'>debugM</span><span class='hs-layout'>)</span>
<a name="line-25"></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-keyword'>as</span> <span class='hs-conid'>E</span> <span class='hs-layout'>(</span><span class='hs-conid'>SomeException</span><span class='hs-layout'>,</span> <span class='hs-varid'>catch</span><span class='hs-layout'>)</span>
<a name="line-26"></a>
<a name="line-27"></a><a name="getGhcVersion"></a><span class='hs-definition'>getGhcVersion</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>FilePath</span>
<a name="line-28"></a><span class='hs-definition'>getGhcVersion</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>E</span><span class='hs-varop'>.</span><span class='hs-varid'>catch</span> <span class='hs-layout'>(</span><span class='hs-keyword'>do</span>
<a name="line-29"></a> <span class='hs-layout'>(</span><span class='hs-varop'>!</span><span class='hs-varid'>output</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'>runTool'</span> <span class='hs-str'>"ghc"</span> <span class='hs-keyglyph'>[</span><span class='hs-str'>"--numeric-version"</span><span class='hs-keyglyph'>]</span> <span class='hs-conid'>Nothing</span>
<a name="line-30"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>vers</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toolline</span> <span class='hs-varop'>$</span> <span class='hs-varid'>head</span> <span class='hs-varid'>output</span>
<a name="line-31"></a> <span class='hs-varid'>vers2</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>ord</span> <span class='hs-layout'>(</span><span class='hs-varid'>last</span> <span class='hs-varid'>vers</span><span class='hs-layout'>)</span> <span class='hs-varop'>==</span> <span class='hs-num'>13</span>
<a name="line-32"></a> <span class='hs-keyword'>then</span> <span class='hs-conid'>List</span><span class='hs-varop'>.</span><span class='hs-varid'>init</span> <span class='hs-varid'>vers</span>
<a name="line-33"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>vers</span>
<a name="line-34"></a> <span class='hs-varid'>debugM</span> <span class='hs-str'>"leksah-server"</span> <span class='hs-varop'>$</span> <span class='hs-str'>"Got GHC Version "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>vers2</span>
<a name="line-35"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>vers2</span>
<a name="line-36"></a> <span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SomeException</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>error</span> <span class='hs-layout'>(</span><span class='hs-str'>"FileUtils>>getGhcVersion failed"</span><span class='hs-layout'>)</span>
<a name="line-37"></a>
<a name="line-38"></a><a name="getHaddockVersion"></a><span class='hs-definition'>getHaddockVersion</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>String</span>
<a name="line-39"></a><span class='hs-definition'>getHaddockVersion</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>E</span><span class='hs-varop'>.</span><span class='hs-varid'>catch</span> <span class='hs-layout'>(</span><span class='hs-keyword'>do</span>
<a name="line-40"></a> <span class='hs-layout'>(</span><span class='hs-varop'>!</span><span class='hs-varid'>output</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>runTool'</span> <span class='hs-str'>"haddock"</span> <span class='hs-keyglyph'>[</span><span class='hs-str'>"--version"</span><span class='hs-keyglyph'>]</span> <span class='hs-conid'>Nothing</span>
<a name="line-41"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>vers</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toolline</span> <span class='hs-varop'>$</span> <span class='hs-varid'>head</span> <span class='hs-varid'>output</span>
<a name="line-42"></a> <span class='hs-varid'>vers2</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>ord</span> <span class='hs-layout'>(</span><span class='hs-varid'>last</span> <span class='hs-varid'>vers</span><span class='hs-layout'>)</span> <span class='hs-varop'>==</span> <span class='hs-num'>13</span>
<a name="line-43"></a> <span class='hs-keyword'>then</span> <span class='hs-conid'>List</span><span class='hs-varop'>.</span><span class='hs-varid'>init</span> <span class='hs-varid'>vers</span>
<a name="line-44"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>vers</span>
<a name="line-45"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>vers2</span>
<a name="line-46"></a> <span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SomeException</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>error</span> <span class='hs-layout'>(</span><span class='hs-str'>"FileUtils>>getHaddockVersion failed"</span><span class='hs-layout'>)</span>
<a name="line-47"></a>
<a name="line-48"></a>
<a name="line-49"></a>
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