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<pre><a name="line-1"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-2"></a><span class='hs-comment'>-- |</span>
<a name="line-3"></a><span class='hs-comment'>-- Module : Distribution.Simple.PackageIndex</span>
<a name="line-4"></a><span class='hs-comment'>-- Copyright : (c) David Himmelstrup 2005,</span>
<a name="line-5"></a><span class='hs-comment'>-- Bjorn Bringert 2007,</span>
<a name="line-6"></a><span class='hs-comment'>-- Duncan Coutts 2008-2009</span>
<a name="line-7"></a><span class='hs-comment'>--</span>
<a name="line-8"></a><span class='hs-comment'>-- Maintainer : cabal-devel@haskell.org</span>
<a name="line-9"></a><span class='hs-comment'>-- Portability : portable</span>
<a name="line-10"></a><span class='hs-comment'>--</span>
<a name="line-11"></a><span class='hs-comment'>-- An index of packages.</span>
<a name="line-12"></a><span class='hs-comment'>--</span>
<a name="line-13"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Distribution</span><span class='hs-varop'>.</span><span class='hs-conid'>Simple</span><span class='hs-varop'>.</span><span class='hs-conid'>PackageIndex</span> <span class='hs-layout'>(</span>
<a name="line-14"></a> <span class='hs-comment'>-- * Package index data type</span>
<a name="line-15"></a> <span class='hs-conid'>PackageIndex</span><span class='hs-layout'>,</span>
<a name="line-16"></a>
<a name="line-17"></a> <span class='hs-comment'>-- * Creating an index</span>
<a name="line-18"></a> <span class='hs-varid'>fromList</span><span class='hs-layout'>,</span>
<a name="line-19"></a>
<a name="line-20"></a> <span class='hs-comment'>-- * Updates</span>
<a name="line-21"></a> <span class='hs-varid'>merge</span><span class='hs-layout'>,</span>
<a name="line-22"></a>
<a name="line-23"></a> <span class='hs-varid'>insert</span><span class='hs-layout'>,</span>
<a name="line-24"></a>
<a name="line-25"></a> <span class='hs-varid'>deleteInstalledPackageId</span><span class='hs-layout'>,</span>
<a name="line-26"></a> <span class='hs-varid'>deleteSourcePackageId</span><span class='hs-layout'>,</span>
<a name="line-27"></a> <span class='hs-varid'>deletePackageName</span><span class='hs-layout'>,</span>
<a name="line-28"></a><span class='hs-comment'>-- deleteDependency,</span>
<a name="line-29"></a>
<a name="line-30"></a> <span class='hs-comment'>-- * Queries</span>
<a name="line-31"></a>
<a name="line-32"></a> <span class='hs-comment'>-- ** Precise lookups</span>
<a name="line-33"></a> <span class='hs-varid'>lookupInstalledPackageId</span><span class='hs-layout'>,</span>
<a name="line-34"></a> <span class='hs-varid'>lookupSourcePackageId</span><span class='hs-layout'>,</span>
<a name="line-35"></a> <span class='hs-varid'>lookupPackageName</span><span class='hs-layout'>,</span>
<a name="line-36"></a> <span class='hs-varid'>lookupDependency</span><span class='hs-layout'>,</span>
<a name="line-37"></a>
<a name="line-38"></a> <span class='hs-comment'>-- ** Case-insensitive searches</span>
<a name="line-39"></a> <span class='hs-varid'>searchByName</span><span class='hs-layout'>,</span>
<a name="line-40"></a> <span class='hs-conid'>SearchResult</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-41"></a> <span class='hs-varid'>searchByNameSubstring</span><span class='hs-layout'>,</span>
<a name="line-42"></a>
<a name="line-43"></a> <span class='hs-comment'>-- ** Bulk queries</span>
<a name="line-44"></a> <span class='hs-varid'>allPackages</span><span class='hs-layout'>,</span>
<a name="line-45"></a> <span class='hs-varid'>allPackagesByName</span><span class='hs-layout'>,</span>
<a name="line-46"></a>
<a name="line-47"></a> <span class='hs-comment'>-- ** Special queries</span>
<a name="line-48"></a> <span class='hs-varid'>brokenPackages</span><span class='hs-layout'>,</span>
<a name="line-49"></a> <span class='hs-varid'>dependencyClosure</span><span class='hs-layout'>,</span>
<a name="line-50"></a> <span class='hs-varid'>reverseDependencyClosure</span><span class='hs-layout'>,</span>
<a name="line-51"></a> <span class='hs-varid'>topologicalOrder</span><span class='hs-layout'>,</span>
<a name="line-52"></a> <span class='hs-varid'>reverseTopologicalOrder</span><span class='hs-layout'>,</span>
<a name="line-53"></a> <span class='hs-varid'>dependencyInconsistencies</span><span class='hs-layout'>,</span>
<a name="line-54"></a> <span class='hs-varid'>dependencyCycles</span><span class='hs-layout'>,</span>
<a name="line-55"></a> <span class='hs-varid'>dependencyGraph</span><span class='hs-layout'>,</span>
<a name="line-56"></a> <span class='hs-varid'>moduleNameIndex</span><span class='hs-layout'>,</span>
<a name="line-57"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-58"></a>
<a name="line-59"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Prelude</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>lookup</span><span class='hs-layout'>)</span>
<a name="line-60"></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'>assert</span><span class='hs-layout'>)</span>
<a name="line-61"></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'>Map</span>
<a name="line-62"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Map</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-layout'>)</span>
<a name="line-63"></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'>Tree</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Tree</span>
<a name="line-64"></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'>Graph</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Graph</span>
<a name="line-65"></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'>Array</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Array</span>
<a name="line-66"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</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-67"></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-keyword'>as</span> <span class='hs-conid'>List</span>
<a name="line-68"></a> <span class='hs-layout'>(</span> <span class='hs-varid'>null</span><span class='hs-layout'>,</span> <span class='hs-varid'>foldl'</span><span class='hs-layout'>,</span> <span class='hs-varid'>sort</span>
<a name="line-69"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>groupBy</span><span class='hs-layout'>,</span> <span class='hs-varid'>sortBy</span><span class='hs-layout'>,</span> <span class='hs-varid'>find</span><span class='hs-layout'>,</span> <span class='hs-varid'>isInfixOf</span><span class='hs-layout'>,</span> <span class='hs-varid'>nubBy</span><span class='hs-layout'>,</span> <span class='hs-varid'>deleteBy</span><span class='hs-layout'>,</span> <span class='hs-varid'>deleteFirstsBy</span> <span class='hs-layout'>)</span>
<a name="line-70"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Monoid</span> <span class='hs-layout'>(</span><span class='hs-conid'>Monoid</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-71"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>isNothing</span><span class='hs-layout'>,</span> <span class='hs-varid'>fromMaybe</span><span class='hs-layout'>)</span>
<a name="line-72"></a>
<a name="line-73"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Distribution</span><span class='hs-varop'>.</span><span class='hs-conid'>Package</span>
<a name="line-74"></a> <span class='hs-layout'>(</span> <span class='hs-conid'>PackageName</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'>PackageId</span>
<a name="line-75"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Package</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'>packageName</span><span class='hs-layout'>,</span> <span class='hs-varid'>packageVersion</span>
<a name="line-76"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Dependency</span><span class='hs-layout'>(</span><span class='hs-conid'>Dependency</span><span class='hs-layout'>)</span><span class='hs-comment'>--, --PackageFixedDeps(..)</span>
<a name="line-77"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>InstalledPackageId</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-78"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Distribution</span><span class='hs-varop'>.</span><span class='hs-conid'>ModuleName</span>
<a name="line-79"></a> <span class='hs-layout'>(</span> <span class='hs-conid'>ModuleName</span> <span class='hs-layout'>)</span>
<a name="line-80"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Distribution</span><span class='hs-varop'>.</span><span class='hs-conid'>InstalledPackageInfo</span>
<a name="line-81"></a> <span class='hs-layout'>(</span> <span class='hs-conid'>InstalledPackageInfo</span><span class='hs-layout'>,</span> <span class='hs-varid'>installedPackageId</span> <span class='hs-layout'>)</span>
<a name="line-82"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Distribution</span><span class='hs-varop'>.</span><span class='hs-conid'>InstalledPackageInfo</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>IPI</span>
<a name="line-83"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Distribution</span><span class='hs-varop'>.</span><span class='hs-conid'>Version</span>
<a name="line-84"></a> <span class='hs-layout'>(</span> <span class='hs-conid'>Version</span><span class='hs-layout'>,</span> <span class='hs-varid'>withinRange</span> <span class='hs-layout'>)</span>
<a name="line-85"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Distribution</span><span class='hs-varop'>.</span><span class='hs-conid'>Simple</span><span class='hs-varop'>.</span><span class='hs-conid'>Utils</span> <span class='hs-layout'>(</span><span class='hs-varid'>lowercase</span><span class='hs-layout'>,</span> <span class='hs-varid'>comparing</span><span class='hs-layout'>,</span> <span class='hs-varid'>equating</span><span class='hs-layout'>)</span>
<a name="line-86"></a>
<a name="line-87"></a>
<a name="line-88"></a><a name="PackageIndex"></a><span class='hs-comment'>-- | The collection of information about packages from one or more 'PackageDB's.</span>
<a name="line-89"></a><a name="PackageIndex"></a><span class='hs-comment'>--</span>
<a name="line-90"></a><a name="PackageIndex"></a><span class='hs-comment'>-- Packages are uniquely identified in by their 'InstalledPackageId', they can</span>
<a name="line-91"></a><a name="PackageIndex"></a><span class='hs-comment'>-- also be effeciently looked up by package name or by name and version.</span>
<a name="line-92"></a><a name="PackageIndex"></a><span class='hs-comment'>--</span>
<a name="line-93"></a><a name="PackageIndex"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PackageIndex</span>
<a name="line-94"></a> <span class='hs-comment'>-- The primary index. Each InstalledPackageInfo record is uniquely identified</span>
<a name="line-95"></a> <span class='hs-comment'>-- by its InstalledPackageId.</span>
<a name="line-96"></a> <span class='hs-comment'>--</span>
<a name="line-97"></a> <span class='hs-varop'>!</span><span class='hs-layout'>(</span><span class='hs-conid'>Map</span> <span class='hs-conid'>InstalledPackageId</span> <span class='hs-conid'>InstalledPackageInfo</span><span class='hs-layout'>)</span>
<a name="line-98"></a>
<a name="line-99"></a> <span class='hs-comment'>-- This auxillary index maps package names (case-sensitively) to all the</span>
<a name="line-100"></a> <span class='hs-comment'>-- versions and instances of that package. This allows us to find all</span>
<a name="line-101"></a> <span class='hs-comment'>-- versions satisfying a dependency.</span>
<a name="line-102"></a> <span class='hs-comment'>--</span>
<a name="line-103"></a> <span class='hs-comment'>-- It is a three-level index. The first level is the package name,</span>
<a name="line-104"></a> <span class='hs-comment'>-- the second is the package version and the final level is instances</span>
<a name="line-105"></a> <span class='hs-comment'>-- of the same package version. These are unique by InstalledPackageId</span>
<a name="line-106"></a> <span class='hs-comment'>-- and are kept in preference order.</span>
<a name="line-107"></a> <span class='hs-comment'>--</span>
<a name="line-108"></a> <span class='hs-varop'>!</span><span class='hs-layout'>(</span><span class='hs-conid'>Map</span> <span class='hs-conid'>PackageName</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span> <span class='hs-conid'>Version</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageInfo</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-109"></a>
<a name="line-110"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Show</span><span class='hs-layout'>,</span> <span class='hs-conid'>Read</span><span class='hs-layout'>)</span>
<a name="line-111"></a>
<a name="line-112"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Monoid</span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyword'>where</span>
<a name="line-113"></a> <span class='hs-varid'>mempty</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PackageIndex</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-114"></a> <span class='hs-varid'>mappend</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>merge</span>
<a name="line-115"></a> <span class='hs-comment'>--save one mappend with empty in the common case:</span>
<a name="line-116"></a> <span class='hs-varid'>mconcat</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mempty</span>
<a name="line-117"></a> <span class='hs-varid'>mconcat</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldr1</span> <span class='hs-varid'>mappend</span> <span class='hs-varid'>xs</span>
<a name="line-118"></a>
<a name="line-119"></a><a name="invariant"></a><span class='hs-definition'>invariant</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-120"></a><span class='hs-definition'>invariant</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageIndex</span> <span class='hs-varid'>pids</span> <span class='hs-varid'>pnames</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-121"></a> <span class='hs-varid'>map</span> <span class='hs-varid'>installedPackageId</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>elems</span> <span class='hs-varid'>pids</span><span class='hs-layout'>)</span>
<a name="line-122"></a> <span class='hs-varop'>==</span> <span class='hs-varid'>sort</span>
<a name="line-123"></a> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>assert</span> <span class='hs-varid'>pinstOk</span> <span class='hs-layout'>(</span><span class='hs-varid'>installedPackageId</span> <span class='hs-varid'>pinst</span><span class='hs-layout'>)</span>
<a name="line-124"></a> <span class='hs-keyglyph'>|</span> <span class='hs-layout'>(</span><span class='hs-varid'>pname</span><span class='hs-layout'>,</span> <span class='hs-varid'>pvers</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-varid'>pnames</span>
<a name="line-125"></a> <span class='hs-layout'>,</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>pversOk</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>pvers</span><span class='hs-layout'>)</span>
<a name="line-126"></a> <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>pver</span><span class='hs-layout'>,</span> <span class='hs-varid'>pinsts</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>assert</span> <span class='hs-varid'>pversOk</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-varid'>pvers</span>
<a name="line-127"></a> <span class='hs-layout'>,</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>pinsts'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sortBy</span> <span class='hs-layout'>(</span><span class='hs-varid'>comparing</span> <span class='hs-varid'>installedPackageId</span><span class='hs-layout'>)</span> <span class='hs-varid'>pinsts</span>
<a name="line-128"></a> <span class='hs-varid'>pinstsOk</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>all</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>g</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>length</span> <span class='hs-varid'>g</span> <span class='hs-varop'>==</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-129"></a> <span class='hs-layout'>(</span><span class='hs-varid'>groupBy</span> <span class='hs-layout'>(</span><span class='hs-varid'>equating</span> <span class='hs-varid'>installedPackageId</span><span class='hs-layout'>)</span> <span class='hs-varid'>pinsts'</span><span class='hs-layout'>)</span>
<a name="line-130"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>pinst</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>assert</span> <span class='hs-varid'>pinstsOk</span> <span class='hs-varop'>$</span> <span class='hs-varid'>pinsts'</span>
<a name="line-131"></a> <span class='hs-layout'>,</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>pinstOk</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>packageName</span> <span class='hs-varid'>pinst</span> <span class='hs-varop'>==</span> <span class='hs-varid'>pname</span>
<a name="line-132"></a> <span class='hs-varop'>&&</span> <span class='hs-varid'>packageVersion</span> <span class='hs-varid'>pinst</span> <span class='hs-varop'>==</span> <span class='hs-varid'>pver</span>
<a name="line-133"></a> <span class='hs-keyglyph'>]</span>
<a name="line-134"></a>
<a name="line-135"></a>
<a name="line-136"></a><span class='hs-comment'>--</span>
<a name="line-137"></a><span class='hs-comment'>-- * Internal helpers</span>
<a name="line-138"></a><span class='hs-comment'>--</span>
<a name="line-139"></a>
<a name="line-140"></a><a name="mkPackageIndex"></a><span class='hs-definition'>mkPackageIndex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Map</span> <span class='hs-conid'>InstalledPackageId</span> <span class='hs-conid'>InstalledPackageInfo</span>
<a name="line-141"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Map</span> <span class='hs-conid'>PackageName</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span> <span class='hs-conid'>Version</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageInfo</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-142"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PackageIndex</span>
<a name="line-143"></a><span class='hs-definition'>mkPackageIndex</span> <span class='hs-varid'>pids</span> <span class='hs-varid'>pnames</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>assert</span> <span class='hs-layout'>(</span><span class='hs-varid'>invariant</span> <span class='hs-varid'>index</span><span class='hs-layout'>)</span> <span class='hs-varid'>index</span>
<a name="line-144"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>index</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PackageIndex</span> <span class='hs-varid'>pids</span> <span class='hs-varid'>pnames</span>
<a name="line-145"></a>
<a name="line-146"></a>
<a name="line-147"></a><span class='hs-comment'>--</span>
<a name="line-148"></a><span class='hs-comment'>-- * Construction</span>
<a name="line-149"></a><span class='hs-comment'>--</span>
<a name="line-150"></a>
<a name="line-151"></a><a name="fromList"></a><span class='hs-comment'>-- | Build an index out of a bunch of packages.</span>
<a name="line-152"></a><span class='hs-comment'>--</span>
<a name="line-153"></a><span class='hs-comment'>-- If there are duplicates by 'InstalledPackageId' then later ones mask earlier</span>
<a name="line-154"></a><span class='hs-comment'>-- ones.</span>
<a name="line-155"></a><span class='hs-comment'>--</span>
<a name="line-156"></a><span class='hs-definition'>fromList</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageInfo</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PackageIndex</span>
<a name="line-157"></a><span class='hs-definition'>fromList</span> <span class='hs-varid'>pkgs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mkPackageIndex</span> <span class='hs-varid'>pids</span> <span class='hs-varid'>pnames</span>
<a name="line-158"></a> <span class='hs-keyword'>where</span>
<a name="line-159"></a> <span class='hs-varid'>pids</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>fromList</span> <span class='hs-keyglyph'>[</span> <span class='hs-layout'>(</span><span class='hs-varid'>installedPackageId</span> <span class='hs-varid'>pkg</span><span class='hs-layout'>,</span> <span class='hs-varid'>pkg</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>pkg</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>pkgs</span> <span class='hs-keyglyph'>]</span>
<a name="line-160"></a> <span class='hs-varid'>pnames</span> <span class='hs-keyglyph'>=</span>
<a name="line-161"></a> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>fromList</span>
<a name="line-162"></a> <span class='hs-keyglyph'>[</span> <span class='hs-layout'>(</span><span class='hs-varid'>packageName</span> <span class='hs-layout'>(</span><span class='hs-varid'>head</span> <span class='hs-varid'>pkgsN</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>pvers</span><span class='hs-layout'>)</span>
<a name="line-163"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>pkgsN</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>groupBy</span> <span class='hs-layout'>(</span><span class='hs-varid'>equating</span> <span class='hs-varid'>packageName</span><span class='hs-layout'>)</span>
<a name="line-164"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>sortBy</span> <span class='hs-layout'>(</span><span class='hs-varid'>comparing</span> <span class='hs-varid'>packageId</span><span class='hs-layout'>)</span>
<a name="line-165"></a> <span class='hs-varop'>$</span> <span class='hs-varid'>pkgs</span>
<a name="line-166"></a> <span class='hs-layout'>,</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>pvers</span> <span class='hs-keyglyph'>=</span>
<a name="line-167"></a> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>fromList</span>
<a name="line-168"></a> <span class='hs-keyglyph'>[</span> <span class='hs-layout'>(</span><span class='hs-varid'>packageVersion</span> <span class='hs-layout'>(</span><span class='hs-varid'>head</span> <span class='hs-varid'>pkgsNV</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-169"></a> <span class='hs-varid'>nubBy</span> <span class='hs-layout'>(</span><span class='hs-varid'>equating</span> <span class='hs-varid'>installedPackageId</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverse</span> <span class='hs-varid'>pkgsNV</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-170"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>pkgsNV</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>groupBy</span> <span class='hs-layout'>(</span><span class='hs-varid'>equating</span> <span class='hs-varid'>packageVersion</span><span class='hs-layout'>)</span> <span class='hs-varid'>pkgsN</span>
<a name="line-171"></a> <span class='hs-keyglyph'>]</span>
<a name="line-172"></a> <span class='hs-keyglyph'>]</span>
<a name="line-173"></a>
<a name="line-174"></a><span class='hs-comment'>--</span>
<a name="line-175"></a><span class='hs-comment'>-- * Updates</span>
<a name="line-176"></a><span class='hs-comment'>--</span>
<a name="line-177"></a>
<a name="line-178"></a><a name="merge"></a><span class='hs-comment'>-- | Merge two indexes.</span>
<a name="line-179"></a><span class='hs-comment'>--</span>
<a name="line-180"></a><span class='hs-comment'>-- Packages from the second mask packages from the first if they have the exact</span>
<a name="line-181"></a><span class='hs-comment'>-- same 'InstalledPackageId'.</span>
<a name="line-182"></a><span class='hs-comment'>--</span>
<a name="line-183"></a><span class='hs-comment'>-- For packages with the same source 'PackageId', packages from the second are</span>
<a name="line-184"></a><span class='hs-comment'>-- \"preferred\" over those from the first. Being preferred means they are top</span>
<a name="line-185"></a><span class='hs-comment'>-- result when we do a lookup by source 'PackageId'. This is the mechanism we</span>
<a name="line-186"></a><span class='hs-comment'>-- use to prefer user packages over global packages.</span>
<a name="line-187"></a><span class='hs-comment'>--</span>
<a name="line-188"></a><span class='hs-definition'>merge</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PackageIndex</span>
<a name="line-189"></a><span class='hs-definition'>merge</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageIndex</span> <span class='hs-varid'>pids1</span> <span class='hs-varid'>pnames1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageIndex</span> <span class='hs-varid'>pids2</span> <span class='hs-varid'>pnames2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-190"></a> <span class='hs-varid'>mkPackageIndex</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>union</span> <span class='hs-varid'>pids1</span> <span class='hs-varid'>pids2</span><span class='hs-layout'>)</span>
<a name="line-191"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>unionWith</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>unionWith</span> <span class='hs-varid'>mergeBuckets</span><span class='hs-layout'>)</span> <span class='hs-varid'>pnames1</span> <span class='hs-varid'>pnames2</span><span class='hs-layout'>)</span>
<a name="line-192"></a> <span class='hs-keyword'>where</span>
<a name="line-193"></a> <span class='hs-comment'>-- Packages in the second list mask those in the first, however preferred</span>
<a name="line-194"></a> <span class='hs-comment'>-- packages go first in the list.</span>
<a name="line-195"></a> <span class='hs-varid'>mergeBuckets</span> <span class='hs-varid'>xs</span> <span class='hs-varid'>ys</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ys</span> <span class='hs-varop'>++</span> <span class='hs-layout'>(</span><span class='hs-varid'>xs</span> <span class='hs-varop'>\\</span> <span class='hs-varid'>ys</span><span class='hs-layout'>)</span>
<a name="line-196"></a> <span class='hs-layout'>(</span><span class='hs-varop'>\\</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>deleteFirstsBy</span> <span class='hs-layout'>(</span><span class='hs-varid'>equating</span> <span class='hs-varid'>installedPackageId</span><span class='hs-layout'>)</span>
<a name="line-197"></a>
<a name="line-198"></a>
<a name="line-199"></a><a name="insert"></a><span class='hs-comment'>-- | Inserts a single package into the index.</span>
<a name="line-200"></a><span class='hs-comment'>--</span>
<a name="line-201"></a><span class='hs-comment'>-- This is equivalent to (but slightly quicker than) using 'mappend' or</span>
<a name="line-202"></a><span class='hs-comment'>-- 'merge' with a singleton index.</span>
<a name="line-203"></a><span class='hs-comment'>--</span>
<a name="line-204"></a><span class='hs-definition'>insert</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>InstalledPackageInfo</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PackageIndex</span>
<a name="line-205"></a><span class='hs-definition'>insert</span> <span class='hs-varid'>pkg</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageIndex</span> <span class='hs-varid'>pids</span> <span class='hs-varid'>pnames</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-206"></a> <span class='hs-varid'>mkPackageIndex</span> <span class='hs-varid'>pids'</span> <span class='hs-varid'>pnames'</span>
<a name="line-207"></a>
<a name="line-208"></a> <span class='hs-keyword'>where</span>
<a name="line-209"></a> <span class='hs-varid'>pids'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>insert</span> <span class='hs-layout'>(</span><span class='hs-varid'>installedPackageId</span> <span class='hs-varid'>pkg</span><span class='hs-layout'>)</span> <span class='hs-varid'>pkg</span> <span class='hs-varid'>pids</span>
<a name="line-210"></a> <span class='hs-varid'>pnames'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>insertPackageName</span> <span class='hs-varid'>pnames</span>
<a name="line-211"></a> <span class='hs-varid'>insertPackageName</span> <span class='hs-keyglyph'>=</span>
<a name="line-212"></a> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>insertWith'</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>insertPackageVersion</span><span class='hs-layout'>)</span>
<a name="line-213"></a> <span class='hs-layout'>(</span><span class='hs-varid'>packageName</span> <span class='hs-varid'>pkg</span><span class='hs-layout'>)</span>
<a name="line-214"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-layout'>(</span><span class='hs-varid'>packageVersion</span> <span class='hs-varid'>pkg</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>pkg</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-215"></a>
<a name="line-216"></a> <span class='hs-varid'>insertPackageVersion</span> <span class='hs-keyglyph'>=</span>
<a name="line-217"></a> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>insertWith'</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>insertPackageInstance</span><span class='hs-layout'>)</span>
<a name="line-218"></a> <span class='hs-layout'>(</span><span class='hs-varid'>packageVersion</span> <span class='hs-varid'>pkg</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>pkg</span><span class='hs-keyglyph'>]</span>
<a name="line-219"></a>
<a name="line-220"></a> <span class='hs-varid'>insertPackageInstance</span> <span class='hs-varid'>pkgs</span> <span class='hs-keyglyph'>=</span>
<a name="line-221"></a> <span class='hs-varid'>pkg</span> <span class='hs-conop'>:</span> <span class='hs-varid'>deleteBy</span> <span class='hs-layout'>(</span><span class='hs-varid'>equating</span> <span class='hs-varid'>installedPackageId</span><span class='hs-layout'>)</span> <span class='hs-varid'>pkg</span> <span class='hs-varid'>pkgs</span>
<a name="line-222"></a>
<a name="line-223"></a>
<a name="line-224"></a><a name="deleteInstalledPackageId"></a><span class='hs-comment'>-- | Removes a single installed package from the index.</span>
<a name="line-225"></a><span class='hs-comment'>--</span>
<a name="line-226"></a><span class='hs-definition'>deleteInstalledPackageId</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>InstalledPackageId</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PackageIndex</span>
<a name="line-227"></a><span class='hs-definition'>deleteInstalledPackageId</span> <span class='hs-varid'>ipkgid</span> <span class='hs-varid'>original</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>PackageIndex</span> <span class='hs-varid'>pids</span> <span class='hs-varid'>pnames</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-228"></a> <span class='hs-keyword'>case</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>updateLookupWithKey</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span> <span class='hs-varid'>ipkgid</span> <span class='hs-varid'>pids</span> <span class='hs-keyword'>of</span>
<a name="line-229"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Nothing</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'>original</span>
<a name="line-230"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>spkgid</span><span class='hs-layout'>,</span> <span class='hs-varid'>pids'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>mkPackageIndex</span> <span class='hs-varid'>pids'</span>
<a name="line-231"></a> <span class='hs-layout'>(</span><span class='hs-varid'>deletePkgName</span> <span class='hs-varid'>spkgid</span> <span class='hs-varid'>pnames</span><span class='hs-layout'>)</span>
<a name="line-232"></a>
<a name="line-233"></a> <span class='hs-keyword'>where</span>
<a name="line-234"></a> <span class='hs-varid'>deletePkgName</span> <span class='hs-varid'>spkgid</span> <span class='hs-keyglyph'>=</span>
<a name="line-235"></a> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>update</span> <span class='hs-layout'>(</span><span class='hs-varid'>deletePkgVersion</span> <span class='hs-varid'>spkgid</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>packageName</span> <span class='hs-varid'>spkgid</span><span class='hs-layout'>)</span>
<a name="line-236"></a>
<a name="line-237"></a> <span class='hs-varid'>deletePkgVersion</span> <span class='hs-varid'>spkgid</span> <span class='hs-keyglyph'>=</span>
<a name="line-238"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>m</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>if</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>m</span> <span class='hs-keyword'>then</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyword'>else</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span>
<a name="line-239"></a> <span class='hs-varop'>.</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>update</span> <span class='hs-varid'>deletePkgInstance</span> <span class='hs-layout'>(</span><span class='hs-varid'>packageVersion</span> <span class='hs-varid'>spkgid</span><span class='hs-layout'>)</span>
<a name="line-240"></a>
<a name="line-241"></a> <span class='hs-varid'>deletePkgInstance</span> <span class='hs-keyglyph'>=</span>
<a name="line-242"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>xs</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>if</span> <span class='hs-conid'>List</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>xs</span> <span class='hs-keyword'>then</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyword'>else</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span>
<a name="line-243"></a> <span class='hs-varop'>.</span> <span class='hs-conid'>List</span><span class='hs-varop'>.</span><span class='hs-varid'>deleteBy</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-varid'>pkg</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>installedPackageId</span> <span class='hs-varid'>pkg</span> <span class='hs-varop'>==</span> <span class='hs-varid'>ipkgid</span><span class='hs-layout'>)</span> <span class='hs-varid'>undefined</span>
<a name="line-244"></a>
<a name="line-245"></a>
<a name="line-246"></a><a name="deleteSourcePackageId"></a><span class='hs-comment'>-- | Removes all packages with this source 'PackageId' from the index.</span>
<a name="line-247"></a><span class='hs-comment'>--</span>
<a name="line-248"></a><span class='hs-definition'>deleteSourcePackageId</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageId</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PackageIndex</span>
<a name="line-249"></a><span class='hs-definition'>deleteSourcePackageId</span> <span class='hs-varid'>pkgid</span> <span class='hs-varid'>original</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>PackageIndex</span> <span class='hs-varid'>pids</span> <span class='hs-varid'>pnames</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-250"></a> <span class='hs-keyword'>case</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-layout'>(</span><span class='hs-varid'>packageName</span> <span class='hs-varid'>pkgid</span><span class='hs-layout'>)</span> <span class='hs-varid'>pnames</span> <span class='hs-keyword'>of</span>
<a name="line-251"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>original</span>
<a name="line-252"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>pvers</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>case</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-layout'>(</span><span class='hs-varid'>packageVersion</span> <span class='hs-varid'>pkgid</span><span class='hs-layout'>)</span> <span class='hs-varid'>pvers</span> <span class='hs-keyword'>of</span>
<a name="line-253"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>original</span>
<a name="line-254"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>pkgs</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>mkPackageIndex</span>
<a name="line-255"></a> <span class='hs-layout'>(</span><span class='hs-varid'>foldl'</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>delete</span> <span class='hs-varop'>.</span> <span class='hs-varid'>installedPackageId</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>pids</span> <span class='hs-varid'>pkgs</span><span class='hs-layout'>)</span>
<a name="line-256"></a> <span class='hs-layout'>(</span><span class='hs-varid'>deletePkgName</span> <span class='hs-varid'>pnames</span><span class='hs-layout'>)</span>
<a name="line-257"></a> <span class='hs-keyword'>where</span>
<a name="line-258"></a> <span class='hs-varid'>deletePkgName</span> <span class='hs-keyglyph'>=</span>
<a name="line-259"></a> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>update</span> <span class='hs-varid'>deletePkgVersion</span> <span class='hs-layout'>(</span><span class='hs-varid'>packageName</span> <span class='hs-varid'>pkgid</span><span class='hs-layout'>)</span>
<a name="line-260"></a>
<a name="line-261"></a> <span class='hs-varid'>deletePkgVersion</span> <span class='hs-keyglyph'>=</span>
<a name="line-262"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>m</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>if</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>m</span> <span class='hs-keyword'>then</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyword'>else</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span>
<a name="line-263"></a> <span class='hs-varop'>.</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>delete</span> <span class='hs-layout'>(</span><span class='hs-varid'>packageVersion</span> <span class='hs-varid'>pkgid</span><span class='hs-layout'>)</span>
<a name="line-264"></a>
<a name="line-265"></a>
<a name="line-266"></a><a name="deletePackageName"></a><span class='hs-comment'>-- | Removes all packages with this (case-sensitive) name from the index.</span>
<a name="line-267"></a><span class='hs-comment'>--</span>
<a name="line-268"></a><span class='hs-definition'>deletePackageName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PackageIndex</span>
<a name="line-269"></a><span class='hs-definition'>deletePackageName</span> <span class='hs-varid'>name</span> <span class='hs-varid'>original</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>PackageIndex</span> <span class='hs-varid'>pids</span> <span class='hs-varid'>pnames</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-270"></a> <span class='hs-keyword'>case</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-varid'>name</span> <span class='hs-varid'>pnames</span> <span class='hs-keyword'>of</span>
<a name="line-271"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>original</span>
<a name="line-272"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>pvers</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>mkPackageIndex</span>
<a name="line-273"></a> <span class='hs-layout'>(</span><span class='hs-varid'>foldl'</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>delete</span> <span class='hs-varop'>.</span> <span class='hs-varid'>installedPackageId</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>pids</span>
<a name="line-274"></a> <span class='hs-layout'>(</span><span class='hs-varid'>concat</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>elems</span> <span class='hs-varid'>pvers</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-275"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>delete</span> <span class='hs-varid'>name</span> <span class='hs-varid'>pnames</span><span class='hs-layout'>)</span>
<a name="line-276"></a>
<a name="line-277"></a><span class='hs-comment'>{-
<a name="line-278"></a>-- | Removes all packages satisfying this dependency from the index.
<a name="line-279"></a>--
<a name="line-280"></a>deleteDependency :: Dependency -> PackageIndex -> PackageIndex
<a name="line-281"></a>deleteDependency (Dependency name verstionRange) =
<a name="line-282"></a> delete' name (\pkg -> packageVersion pkg `withinRange` verstionRange)
<a name="line-283"></a>-}</span>
<a name="line-284"></a>
<a name="line-285"></a><span class='hs-comment'>--</span>
<a name="line-286"></a><span class='hs-comment'>-- * Bulk queries</span>
<a name="line-287"></a><span class='hs-comment'>--</span>
<a name="line-288"></a>
<a name="line-289"></a><a name="allPackages"></a><span class='hs-comment'>-- | Get all the packages from the index.</span>
<a name="line-290"></a><span class='hs-comment'>--</span>
<a name="line-291"></a><span class='hs-definition'>allPackages</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageInfo</span><span class='hs-keyglyph'>]</span>
<a name="line-292"></a><span class='hs-definition'>allPackages</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageIndex</span> <span class='hs-varid'>pids</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>elems</span> <span class='hs-varid'>pids</span>
<a name="line-293"></a>
<a name="line-294"></a><a name="allPackagesByName"></a><span class='hs-comment'>-- | Get all the packages from the index.</span>
<a name="line-295"></a><span class='hs-comment'>--</span>
<a name="line-296"></a><span class='hs-comment'>-- They are grouped by package name, case-sensitively.</span>
<a name="line-297"></a><span class='hs-comment'>--</span>
<a name="line-298"></a><span class='hs-definition'>allPackagesByName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageInfo</span><span class='hs-keyglyph'>]</span><span class='hs-keyglyph'>]</span>
<a name="line-299"></a><span class='hs-definition'>allPackagesByName</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageIndex</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>pnames</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-300"></a> <span class='hs-varid'>concatMap</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>elems</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>elems</span> <span class='hs-varid'>pnames</span><span class='hs-layout'>)</span>
<a name="line-301"></a>
<a name="line-302"></a><span class='hs-comment'>--</span>
<a name="line-303"></a><span class='hs-comment'>-- * Lookups</span>
<a name="line-304"></a><span class='hs-comment'>--</span>
<a name="line-305"></a>
<a name="line-306"></a><a name="lookupInstalledPackageId"></a><span class='hs-comment'>-- | Does a lookup by source package id (name & version).</span>
<a name="line-307"></a><span class='hs-comment'>--</span>
<a name="line-308"></a><span class='hs-comment'>-- Since multiple package DBs mask each other by 'InstalledPackageId',</span>
<a name="line-309"></a><span class='hs-comment'>-- then we get back at most one package.</span>
<a name="line-310"></a><span class='hs-comment'>--</span>
<a name="line-311"></a><span class='hs-definition'>lookupInstalledPackageId</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>InstalledPackageId</span>
<a name="line-312"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>InstalledPackageInfo</span>
<a name="line-313"></a><span class='hs-definition'>lookupInstalledPackageId</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageIndex</span> <span class='hs-varid'>pids</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-varid'>pid</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-varid'>pid</span> <span class='hs-varid'>pids</span>
<a name="line-314"></a>
<a name="line-315"></a>
<a name="line-316"></a><a name="lookupSourcePackageId"></a><span class='hs-comment'>-- | Does a lookup by source package id (name & version).</span>
<a name="line-317"></a><span class='hs-comment'>--</span>
<a name="line-318"></a><span class='hs-comment'>-- There can be multiple installed packages with the same source 'PackageId'</span>
<a name="line-319"></a><span class='hs-comment'>-- but different 'InstalledPackageId'. They are returned in order of</span>
<a name="line-320"></a><span class='hs-comment'>-- preference, with the most preferred first.</span>
<a name="line-321"></a><span class='hs-comment'>--</span>
<a name="line-322"></a><span class='hs-definition'>lookupSourcePackageId</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PackageId</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageInfo</span><span class='hs-keyglyph'>]</span>
<a name="line-323"></a><span class='hs-definition'>lookupSourcePackageId</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageIndex</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>pnames</span><span class='hs-layout'>)</span> <span class='hs-varid'>pkgid</span> <span class='hs-keyglyph'>=</span>
<a name="line-324"></a> <span class='hs-keyword'>case</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-layout'>(</span><span class='hs-varid'>packageName</span> <span class='hs-varid'>pkgid</span><span class='hs-layout'>)</span> <span class='hs-varid'>pnames</span> <span class='hs-keyword'>of</span>
<a name="line-325"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>[]</span>
<a name="line-326"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>pvers</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>case</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-layout'>(</span><span class='hs-varid'>packageVersion</span> <span class='hs-varid'>pkgid</span><span class='hs-layout'>)</span> <span class='hs-varid'>pvers</span> <span class='hs-keyword'>of</span>
<a name="line-327"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>[]</span>
<a name="line-328"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>pkgs</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>pkgs</span> <span class='hs-comment'>-- in preference order</span>
<a name="line-329"></a>
<a name="line-330"></a>
<a name="line-331"></a><a name="lookupPackageName"></a><span class='hs-comment'>-- | Does a lookup by source package name.</span>
<a name="line-332"></a><span class='hs-comment'>--</span>
<a name="line-333"></a><span class='hs-definition'>lookupPackageName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PackageName</span>
<a name="line-334"></a> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Version</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageInfo</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-335"></a><span class='hs-definition'>lookupPackageName</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageIndex</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>pnames</span><span class='hs-layout'>)</span> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span>
<a name="line-336"></a> <span class='hs-keyword'>case</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-varid'>name</span> <span class='hs-varid'>pnames</span> <span class='hs-keyword'>of</span>
<a name="line-337"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>[]</span>
<a name="line-338"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>pvers</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-varid'>pvers</span>
<a name="line-339"></a>
<a name="line-340"></a>
<a name="line-341"></a><a name="lookupDependency"></a><span class='hs-comment'>-- | Does a lookup by source package name and a range of versions.</span>
<a name="line-342"></a><span class='hs-comment'>--</span>
<a name="line-343"></a><span class='hs-comment'>-- We get back any number of versions of the specified package name, all</span>
<a name="line-344"></a><span class='hs-comment'>-- satisfying the version range constraint.</span>
<a name="line-345"></a><span class='hs-comment'>--</span>
<a name="line-346"></a><span class='hs-definition'>lookupDependency</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Dependency</span>
<a name="line-347"></a> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Version</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageInfo</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-348"></a><span class='hs-definition'>lookupDependency</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageIndex</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>pnames</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Dependency</span> <span class='hs-varid'>name</span> <span class='hs-varid'>versionRange</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-349"></a> <span class='hs-keyword'>case</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-varid'>name</span> <span class='hs-varid'>pnames</span> <span class='hs-keyword'>of</span>
<a name="line-350"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>[]</span>
<a name="line-351"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>pvers</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>entry</span>
<a name="line-352"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>entry</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-varid'>ver</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-varid'>pvers</span>
<a name="line-353"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>ver</span> <span class='hs-varop'>`withinRange`</span> <span class='hs-varid'>versionRange</span> <span class='hs-keyglyph'>]</span>
<a name="line-354"></a>
<a name="line-355"></a><span class='hs-comment'>--</span>
<a name="line-356"></a><span class='hs-comment'>-- * Case insensitive name lookups</span>
<a name="line-357"></a><span class='hs-comment'>--</span>
<a name="line-358"></a>
<a name="line-359"></a><a name="searchByName"></a><span class='hs-comment'>-- | Does a case-insensitive search by package name.</span>
<a name="line-360"></a><span class='hs-comment'>--</span>
<a name="line-361"></a><span class='hs-comment'>-- If there is only one package that compares case-insentiviely to this name</span>
<a name="line-362"></a><span class='hs-comment'>-- then the search is unambiguous and we get back all versions of that package.</span>
<a name="line-363"></a><span class='hs-comment'>-- If several match case-insentiviely but one matches exactly then it is also</span>
<a name="line-364"></a><span class='hs-comment'>-- unambiguous.</span>
<a name="line-365"></a><span class='hs-comment'>--</span>
<a name="line-366"></a><span class='hs-comment'>-- If however several match case-insentiviely and none match exactly then we</span>
<a name="line-367"></a><span class='hs-comment'>-- have an ambiguous result, and we get back all the versions of all the</span>
<a name="line-368"></a><span class='hs-comment'>-- packages. The list of ambiguous results is split by exact package name. So</span>
<a name="line-369"></a><span class='hs-comment'>-- it is a non-empty list of non-empty lists.</span>
<a name="line-370"></a><span class='hs-comment'>--</span>
<a name="line-371"></a><span class='hs-definition'>searchByName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>SearchResult</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageInfo</span><span class='hs-keyglyph'>]</span>
<a name="line-372"></a><span class='hs-definition'>searchByName</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageIndex</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>pnames</span><span class='hs-layout'>)</span> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span>
<a name="line-373"></a> <span class='hs-keyword'>case</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>pkgs</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>pkgs</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>PackageName</span> <span class='hs-varid'>name'</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-varid'>pnames</span>
<a name="line-374"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>lowercase</span> <span class='hs-varid'>name'</span> <span class='hs-varop'>==</span> <span class='hs-varid'>lname</span> <span class='hs-keyglyph'>]</span> <span class='hs-keyword'>of</span>
<a name="line-375"></a> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>None</span>
<a name="line-376"></a> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>pvers</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Unambiguous</span> <span class='hs-layout'>(</span><span class='hs-varid'>concat</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>elems</span> <span class='hs-varid'>pvers</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-377"></a> <span class='hs-varid'>pkgss</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>case</span> <span class='hs-varid'>find</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>PackageName</span> <span class='hs-varid'>name</span><span class='hs-varop'>==</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fst</span><span class='hs-layout'>)</span> <span class='hs-varid'>pkgss</span> <span class='hs-keyword'>of</span>
<a name="line-378"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>pvers</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Unambiguous</span> <span class='hs-layout'>(</span><span class='hs-varid'>concat</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>elems</span> <span class='hs-varid'>pvers</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-379"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ambiguous</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>concat</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>elems</span> <span class='hs-varop'>.</span> <span class='hs-varid'>snd</span><span class='hs-layout'>)</span> <span class='hs-varid'>pkgss</span><span class='hs-layout'>)</span>
<a name="line-380"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>lname</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>lowercase</span> <span class='hs-varid'>name</span>
<a name="line-381"></a>
<a name="line-382"></a><a name="SearchResult"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>SearchResult</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>None</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Unambiguous</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Ambiguous</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span>
<a name="line-383"></a>
<a name="line-384"></a><a name="searchByNameSubstring"></a><span class='hs-comment'>-- | Does a case-insensitive substring search by package name.</span>
<a name="line-385"></a><span class='hs-comment'>--</span>
<a name="line-386"></a><span class='hs-comment'>-- That is, all packages that contain the given string in their name.</span>
<a name="line-387"></a><span class='hs-comment'>--</span>
<a name="line-388"></a><span class='hs-definition'>searchByNameSubstring</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageInfo</span><span class='hs-keyglyph'>]</span>
<a name="line-389"></a><span class='hs-definition'>searchByNameSubstring</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageIndex</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>pnames</span><span class='hs-layout'>)</span> <span class='hs-varid'>searchterm</span> <span class='hs-keyglyph'>=</span>
<a name="line-390"></a> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>pkg</span>
<a name="line-391"></a> <span class='hs-keyglyph'>|</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageName</span> <span class='hs-varid'>name</span><span class='hs-layout'>,</span> <span class='hs-varid'>pvers</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-varid'>pnames</span>
<a name="line-392"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>lsearchterm</span> <span class='hs-varop'>`isInfixOf`</span> <span class='hs-varid'>lowercase</span> <span class='hs-varid'>name</span>
<a name="line-393"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>pkgs</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>elems</span> <span class='hs-varid'>pvers</span>
<a name="line-394"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>pkg</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>pkgs</span> <span class='hs-keyglyph'>]</span>
<a name="line-395"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>lsearchterm</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>lowercase</span> <span class='hs-varid'>searchterm</span>
<a name="line-396"></a>
<a name="line-397"></a>
<a name="line-398"></a><span class='hs-comment'>--</span>
<a name="line-399"></a><span class='hs-comment'>-- * Special queries</span>
<a name="line-400"></a><span class='hs-comment'>--</span>
<a name="line-401"></a>
<a name="line-402"></a><span class='hs-comment'>-- None of the stuff below depends on the internal representation of the index.</span>
<a name="line-403"></a><span class='hs-comment'>--</span>
<a name="line-404"></a>
<a name="line-405"></a><a name="dependencyCycles"></a><span class='hs-comment'>-- | Find if there are any cycles in the dependency graph. If there are no</span>
<a name="line-406"></a><span class='hs-comment'>-- cycles the result is @[]@.</span>
<a name="line-407"></a><span class='hs-comment'>--</span>
<a name="line-408"></a><span class='hs-comment'>-- This actually computes the strongly connected components. So it gives us a</span>
<a name="line-409"></a><span class='hs-comment'>-- list of groups of packages where within each group they all depend on each</span>
<a name="line-410"></a><span class='hs-comment'>-- other, directly or indirectly.</span>
<a name="line-411"></a><span class='hs-comment'>--</span>
<a name="line-412"></a><span class='hs-definition'>dependencyCycles</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageInfo</span><span class='hs-keyglyph'>]</span><span class='hs-keyglyph'>]</span>
<a name="line-413"></a><span class='hs-definition'>dependencyCycles</span> <span class='hs-varid'>index</span> <span class='hs-keyglyph'>=</span>
<a name="line-414"></a> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>vs</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Graph</span><span class='hs-varop'>.</span><span class='hs-conid'>CyclicSCC</span> <span class='hs-varid'>vs</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>Graph</span><span class='hs-varop'>.</span><span class='hs-varid'>stronglyConnComp</span> <span class='hs-varid'>adjacencyList</span> <span class='hs-keyglyph'>]</span>
<a name="line-415"></a> <span class='hs-keyword'>where</span>
<a name="line-416"></a> <span class='hs-varid'>adjacencyList</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span> <span class='hs-layout'>(</span><span class='hs-varid'>pkg</span><span class='hs-layout'>,</span> <span class='hs-varid'>installedPackageId</span> <span class='hs-varid'>pkg</span><span class='hs-layout'>,</span> <span class='hs-conid'>IPI</span><span class='hs-varop'>.</span><span class='hs-varid'>depends</span> <span class='hs-varid'>pkg</span><span class='hs-layout'>)</span>
<a name="line-417"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>pkg</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>allPackages</span> <span class='hs-varid'>index</span> <span class='hs-keyglyph'>]</span>
<a name="line-418"></a>
<a name="line-419"></a>
<a name="line-420"></a><a name="brokenPackages"></a><span class='hs-comment'>-- | All packages that have immediate dependencies that are not in the index.</span>
<a name="line-421"></a><span class='hs-comment'>--</span>
<a name="line-422"></a><span class='hs-comment'>-- Returns such packages along with the dependencies that they're missing.</span>
<a name="line-423"></a><span class='hs-comment'>--</span>
<a name="line-424"></a><span class='hs-definition'>brokenPackages</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>InstalledPackageInfo</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageId</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-425"></a><span class='hs-definition'>brokenPackages</span> <span class='hs-varid'>index</span> <span class='hs-keyglyph'>=</span>
<a name="line-426"></a> <span class='hs-keyglyph'>[</span> <span class='hs-layout'>(</span><span class='hs-varid'>pkg</span><span class='hs-layout'>,</span> <span class='hs-varid'>missing</span><span class='hs-layout'>)</span>
<a name="line-427"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>pkg</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>allPackages</span> <span class='hs-varid'>index</span>
<a name="line-428"></a> <span class='hs-layout'>,</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>missing</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>pkg'</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>pkg'</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>IPI</span><span class='hs-varop'>.</span><span class='hs-varid'>depends</span> <span class='hs-varid'>pkg</span>
<a name="line-429"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isNothing</span> <span class='hs-layout'>(</span><span class='hs-varid'>lookupInstalledPackageId</span> <span class='hs-varid'>index</span> <span class='hs-varid'>pkg'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>]</span>
<a name="line-430"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>null</span> <span class='hs-varid'>missing</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>]</span>
<a name="line-431"></a>
<a name="line-432"></a>
<a name="line-433"></a><a name="dependencyClosure"></a><span class='hs-comment'>-- | Tries to take the transitive closure of the package dependencies.</span>
<a name="line-434"></a><span class='hs-comment'>--</span>
<a name="line-435"></a><span class='hs-comment'>-- If the transitive closure is complete then it returns that subset of the</span>
<a name="line-436"></a><span class='hs-comment'>-- index. Otherwise it returns the broken packages as in 'brokenPackages'.</span>
<a name="line-437"></a><span class='hs-comment'>--</span>
<a name="line-438"></a><span class='hs-comment'>-- * Note that if the result is @Right []@ it is because at least one of</span>
<a name="line-439"></a><span class='hs-comment'>-- the original given 'PackageId's do not occur in the index.</span>
<a name="line-440"></a><span class='hs-comment'>--</span>
<a name="line-441"></a><span class='hs-definition'>dependencyClosure</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIndex</span>
<a name="line-442"></a> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageId</span><span class='hs-keyglyph'>]</span>
<a name="line-443"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Either</span> <span class='hs-conid'>PackageIndex</span>
<a name="line-444"></a> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>InstalledPackageInfo</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageId</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-445"></a><span class='hs-definition'>dependencyClosure</span> <span class='hs-varid'>index</span> <span class='hs-varid'>pkgids0</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>closure</span> <span class='hs-varid'>mempty</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>pkgids0</span> <span class='hs-keyword'>of</span>
<a name="line-446"></a> <span class='hs-layout'>(</span><span class='hs-varid'>completed</span><span class='hs-layout'>,</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Left</span> <span class='hs-varid'>completed</span>
<a name="line-447"></a> <span class='hs-layout'>(</span><span class='hs-varid'>completed</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Right</span> <span class='hs-layout'>(</span><span class='hs-varid'>brokenPackages</span> <span class='hs-varid'>completed</span><span class='hs-layout'>)</span>
<a name="line-448"></a> <span class='hs-keyword'>where</span>
<a name="line-449"></a> <span class='hs-varid'>closure</span> <span class='hs-varid'>completed</span> <span class='hs-varid'>failed</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>completed</span><span class='hs-layout'>,</span> <span class='hs-varid'>failed</span><span class='hs-layout'>)</span>
<a name="line-450"></a> <span class='hs-varid'>closure</span> <span class='hs-varid'>completed</span> <span class='hs-varid'>failed</span> <span class='hs-layout'>(</span><span class='hs-varid'>pkgid</span><span class='hs-conop'>:</span><span class='hs-varid'>pkgids</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>lookupInstalledPackageId</span> <span class='hs-varid'>index</span> <span class='hs-varid'>pkgid</span> <span class='hs-keyword'>of</span>
<a name="line-451"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>closure</span> <span class='hs-varid'>completed</span> <span class='hs-layout'>(</span><span class='hs-varid'>pkgid</span><span class='hs-conop'>:</span><span class='hs-varid'>failed</span><span class='hs-layout'>)</span> <span class='hs-varid'>pkgids</span>
<a name="line-452"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>pkg</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>case</span> <span class='hs-varid'>lookupInstalledPackageId</span> <span class='hs-varid'>completed</span> <span class='hs-layout'>(</span><span class='hs-varid'>installedPackageId</span> <span class='hs-varid'>pkg</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span>
<a name="line-453"></a> <span class='hs-conid'>Just</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>closure</span> <span class='hs-varid'>completed</span> <span class='hs-varid'>failed</span> <span class='hs-varid'>pkgids</span>
<a name="line-454"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>closure</span> <span class='hs-varid'>completed'</span> <span class='hs-varid'>failed</span> <span class='hs-varid'>pkgids'</span>
<a name="line-455"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>completed'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>insert</span> <span class='hs-varid'>pkg</span> <span class='hs-varid'>completed</span>
<a name="line-456"></a> <span class='hs-varid'>pkgids'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>IPI</span><span class='hs-varop'>.</span><span class='hs-varid'>depends</span> <span class='hs-varid'>pkg</span> <span class='hs-varop'>++</span> <span class='hs-varid'>pkgids</span>
<a name="line-457"></a>
<a name="line-458"></a><a name="reverseDependencyClosure"></a><span class='hs-comment'>-- | Takes the transitive closure of the packages reverse dependencies.</span>
<a name="line-459"></a><span class='hs-comment'>--</span>
<a name="line-460"></a><span class='hs-comment'>-- * The given 'PackageId's must be in the index.</span>
<a name="line-461"></a><span class='hs-comment'>--</span>
<a name="line-462"></a><span class='hs-definition'>reverseDependencyClosure</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIndex</span>
<a name="line-463"></a> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageId</span><span class='hs-keyglyph'>]</span>
<a name="line-464"></a> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageInfo</span><span class='hs-keyglyph'>]</span>
<a name="line-465"></a><span class='hs-definition'>reverseDependencyClosure</span> <span class='hs-varid'>index</span> <span class='hs-keyglyph'>=</span>
<a name="line-466"></a> <span class='hs-varid'>map</span> <span class='hs-varid'>vertexToPkg</span>
<a name="line-467"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>concatMap</span> <span class='hs-conid'>Tree</span><span class='hs-varop'>.</span><span class='hs-varid'>flatten</span>
<a name="line-468"></a> <span class='hs-varop'>.</span> <span class='hs-conid'>Graph</span><span class='hs-varop'>.</span><span class='hs-varid'>dfs</span> <span class='hs-varid'>reverseDepGraph</span>
<a name="line-469"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromMaybe</span> <span class='hs-varid'>noSuchPkgId</span> <span class='hs-varop'>.</span> <span class='hs-varid'>pkgIdToVertex</span><span class='hs-layout'>)</span>
<a name="line-470"></a>
<a name="line-471"></a> <span class='hs-keyword'>where</span>
<a name="line-472"></a> <span class='hs-layout'>(</span><span class='hs-varid'>depGraph</span><span class='hs-layout'>,</span> <span class='hs-varid'>vertexToPkg</span><span class='hs-layout'>,</span> <span class='hs-varid'>pkgIdToVertex</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dependencyGraph</span> <span class='hs-varid'>index</span>
<a name="line-473"></a> <span class='hs-varid'>reverseDepGraph</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Graph</span><span class='hs-varop'>.</span><span class='hs-varid'>transposeG</span> <span class='hs-varid'>depGraph</span>
<a name="line-474"></a> <span class='hs-varid'>noSuchPkgId</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"reverseDependencyClosure: package is not in the graph"</span>
<a name="line-475"></a>
<a name="line-476"></a><a name="topologicalOrder"></a><span class='hs-definition'>topologicalOrder</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageInfo</span><span class='hs-keyglyph'>]</span>
<a name="line-477"></a><span class='hs-definition'>topologicalOrder</span> <span class='hs-varid'>index</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>toPkgId</span>
<a name="line-478"></a> <span class='hs-varop'>.</span> <span class='hs-conid'>Graph</span><span class='hs-varop'>.</span><span class='hs-varid'>topSort</span>
<a name="line-479"></a> <span class='hs-varop'>$</span> <span class='hs-varid'>graph</span>
<a name="line-480"></a> <span class='hs-keyword'>where</span> <span class='hs-layout'>(</span><span class='hs-varid'>graph</span><span class='hs-layout'>,</span> <span class='hs-varid'>toPkgId</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'>dependencyGraph</span> <span class='hs-varid'>index</span>
<a name="line-481"></a>
<a name="line-482"></a><a name="reverseTopologicalOrder"></a><span class='hs-definition'>reverseTopologicalOrder</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageInfo</span><span class='hs-keyglyph'>]</span>
<a name="line-483"></a><span class='hs-definition'>reverseTopologicalOrder</span> <span class='hs-varid'>index</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>toPkgId</span>
<a name="line-484"></a> <span class='hs-varop'>.</span> <span class='hs-conid'>Graph</span><span class='hs-varop'>.</span><span class='hs-varid'>topSort</span>
<a name="line-485"></a> <span class='hs-varop'>.</span> <span class='hs-conid'>Graph</span><span class='hs-varop'>.</span><span class='hs-varid'>transposeG</span>
<a name="line-486"></a> <span class='hs-varop'>$</span> <span class='hs-varid'>graph</span>
<a name="line-487"></a> <span class='hs-keyword'>where</span> <span class='hs-layout'>(</span><span class='hs-varid'>graph</span><span class='hs-layout'>,</span> <span class='hs-varid'>toPkgId</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'>dependencyGraph</span> <span class='hs-varid'>index</span>
<a name="line-488"></a>
<a name="line-489"></a><a name="dependencyGraph"></a><span class='hs-comment'>-- | Builds a graph of the package dependencies.</span>
<a name="line-490"></a><span class='hs-comment'>--</span>
<a name="line-491"></a><span class='hs-comment'>-- Dependencies on other packages that are not in the index are discarded.</span>
<a name="line-492"></a><span class='hs-comment'>-- You can check if there are any such dependencies with 'brokenPackages'.</span>
<a name="line-493"></a><span class='hs-comment'>--</span>
<a name="line-494"></a><span class='hs-definition'>dependencyGraph</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIndex</span>
<a name="line-495"></a> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Graph</span><span class='hs-varop'>.</span><span class='hs-conid'>Graph</span><span class='hs-layout'>,</span>
<a name="line-496"></a> <span class='hs-conid'>Graph</span><span class='hs-varop'>.</span><span class='hs-conid'>Vertex</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>InstalledPackageInfo</span><span class='hs-layout'>,</span>
<a name="line-497"></a> <span class='hs-conid'>InstalledPackageId</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Graph</span><span class='hs-varop'>.</span><span class='hs-conid'>Vertex</span><span class='hs-layout'>)</span>
<a name="line-498"></a><span class='hs-definition'>dependencyGraph</span> <span class='hs-varid'>index</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>graph</span><span class='hs-layout'>,</span> <span class='hs-varid'>vertex_to_pkg</span><span class='hs-layout'>,</span> <span class='hs-varid'>id_to_vertex</span><span class='hs-layout'>)</span>
<a name="line-499"></a> <span class='hs-keyword'>where</span>
<a name="line-500"></a> <span class='hs-varid'>graph</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Array</span><span class='hs-varop'>.</span><span class='hs-varid'>listArray</span> <span class='hs-varid'>bounds</span>
<a name="line-501"></a> <span class='hs-keyglyph'>[</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>map</span> <span class='hs-varid'>id_to_vertex</span> <span class='hs-layout'>(</span><span class='hs-conid'>IPI</span><span class='hs-varop'>.</span><span class='hs-varid'>depends</span> <span class='hs-varid'>pkg</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>]</span>
<a name="line-502"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>pkg</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>pkgs</span> <span class='hs-keyglyph'>]</span>
<a name="line-503"></a>
<a name="line-504"></a> <span class='hs-varid'>pkgs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sortBy</span> <span class='hs-layout'>(</span><span class='hs-varid'>comparing</span> <span class='hs-varid'>packageId</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>allPackages</span> <span class='hs-varid'>index</span><span class='hs-layout'>)</span>
<a name="line-505"></a> <span class='hs-varid'>vertices</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>zip</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>installedPackageId</span> <span class='hs-varid'>pkgs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-num'>0</span><span class='hs-keyglyph'>..</span><span class='hs-keyglyph'>]</span>
<a name="line-506"></a> <span class='hs-varid'>vertex_map</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>fromList</span> <span class='hs-varid'>vertices</span>
<a name="line-507"></a> <span class='hs-varid'>id_to_vertex</span> <span class='hs-varid'>pid</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-varid'>pid</span> <span class='hs-varid'>vertex_map</span>
<a name="line-508"></a>
<a name="line-509"></a> <span class='hs-varid'>vertex_to_pkg</span> <span class='hs-varid'>vertex</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pkgTable</span> <span class='hs-varop'>!</span> <span class='hs-varid'>vertex</span>
<a name="line-510"></a>
<a name="line-511"></a> <span class='hs-varid'>pkgTable</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Array</span><span class='hs-varop'>.</span><span class='hs-varid'>listArray</span> <span class='hs-varid'>bounds</span> <span class='hs-varid'>pkgs</span>
<a name="line-512"></a> <span class='hs-varid'>topBound</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-varid'>pkgs</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span>
<a name="line-513"></a> <span class='hs-varid'>bounds</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span> <span class='hs-varid'>topBound</span><span class='hs-layout'>)</span>
<a name="line-514"></a>
<a name="line-515"></a><a name="dependencyInconsistencies"></a><span class='hs-comment'>-- | Given a package index where we assume we want to use all the packages</span>
<a name="line-516"></a><span class='hs-comment'>-- (use 'dependencyClosure' if you need to get such a index subset) find out</span>
<a name="line-517"></a><span class='hs-comment'>-- if the dependencies within it use consistent versions of each package.</span>
<a name="line-518"></a><span class='hs-comment'>-- Return all cases where multiple packages depend on different versions of</span>
<a name="line-519"></a><span class='hs-comment'>-- some other package.</span>
<a name="line-520"></a><span class='hs-comment'>--</span>
<a name="line-521"></a><span class='hs-comment'>-- Each element in the result is a package name along with the packages that</span>
<a name="line-522"></a><span class='hs-comment'>-- depend on it and the versions they require. These are guaranteed to be</span>
<a name="line-523"></a><span class='hs-comment'>-- distinct.</span>
<a name="line-524"></a><span class='hs-comment'>--</span>
<a name="line-525"></a><span class='hs-definition'>dependencyInconsistencies</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIndex</span>
<a name="line-526"></a> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>PackageName</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>PackageId</span><span class='hs-layout'>,</span> <span class='hs-conid'>Version</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-527"></a><span class='hs-definition'>dependencyInconsistencies</span> <span class='hs-varid'>index</span> <span class='hs-keyglyph'>=</span>
<a name="line-528"></a> <span class='hs-keyglyph'>[</span> <span class='hs-layout'>(</span><span class='hs-varid'>name</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span> <span class='hs-layout'>(</span><span class='hs-varid'>pid</span><span class='hs-layout'>,</span><span class='hs-varid'>packageVersion</span> <span class='hs-varid'>dep</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-layout'>(</span><span class='hs-varid'>dep</span><span class='hs-layout'>,</span><span class='hs-varid'>pids</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>uses</span><span class='hs-layout'>,</span> <span class='hs-varid'>pid</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>pids</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-529"></a> <span class='hs-keyglyph'>|</span> <span class='hs-layout'>(</span><span class='hs-varid'>name</span><span class='hs-layout'>,</span> <span class='hs-varid'>ipid_map</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-varid'>inverseIndex</span>
<a name="line-530"></a> <span class='hs-layout'>,</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>uses</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>elems</span> <span class='hs-varid'>ipid_map</span>
<a name="line-531"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>reallyIsInconsistent</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>fst</span> <span class='hs-varid'>uses</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>]</span>
<a name="line-532"></a>
<a name="line-533"></a> <span class='hs-keyword'>where</span> <span class='hs-comment'>-- for each PackageName,</span>
<a name="line-534"></a> <span class='hs-comment'>-- for each package with that name,</span>
<a name="line-535"></a> <span class='hs-comment'>-- the InstalledPackageInfo and the package Ids of packages</span>
<a name="line-536"></a> <span class='hs-comment'>-- that depend on it.</span>
<a name="line-537"></a> <span class='hs-varid'>inverseIndex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Map</span> <span class='hs-conid'>PackageName</span>
<a name="line-538"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span> <span class='hs-conid'>InstalledPackageId</span>
<a name="line-539"></a> <span class='hs-layout'>(</span><span class='hs-conid'>InstalledPackageInfo</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PackageId</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-540"></a> <span class='hs-varid'>inverseIndex</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>fromListWith</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>unionWith</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-layout'>,</span><span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>b'</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-layout'>,</span><span class='hs-varid'>b</span><span class='hs-varop'>++</span><span class='hs-varid'>b'</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-541"></a> <span class='hs-keyglyph'>[</span> <span class='hs-layout'>(</span><span class='hs-varid'>packageName</span> <span class='hs-varid'>dep</span><span class='hs-layout'>,</span>
<a name="line-542"></a> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>fromList</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>ipid</span><span class='hs-layout'>,</span><span class='hs-layout'>(</span><span class='hs-varid'>dep</span><span class='hs-layout'>,</span><span class='hs-keyglyph'>[</span><span class='hs-varid'>packageId</span> <span class='hs-varid'>pkg</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-543"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>pkg</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>allPackages</span> <span class='hs-varid'>index</span>
<a name="line-544"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>ipid</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>IPI</span><span class='hs-varop'>.</span><span class='hs-varid'>depends</span> <span class='hs-varid'>pkg</span>
<a name="line-545"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>dep</span> <span class='hs-keyglyph'><-</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>lookupInstalledPackageId</span> <span class='hs-varid'>index</span> <span class='hs-varid'>ipid</span><span class='hs-keyglyph'>]</span>
<a name="line-546"></a> <span class='hs-keyglyph'>]</span>
<a name="line-547"></a>
<a name="line-548"></a> <span class='hs-varid'>reallyIsInconsistent</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageInfo</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-549"></a> <span class='hs-varid'>reallyIsInconsistent</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-550"></a> <span class='hs-varid'>reallyIsInconsistent</span> <span class='hs-keyglyph'>[</span><span class='hs-sel'>_p</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-551"></a> <span class='hs-varid'>reallyIsInconsistent</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>p1</span><span class='hs-layout'>,</span> <span class='hs-varid'>p2</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>=</span>
<a name="line-552"></a> <span class='hs-varid'>installedPackageId</span> <span class='hs-varid'>p1</span> <span class='hs-varop'>`notElem`</span> <span class='hs-conid'>IPI</span><span class='hs-varop'>.</span><span class='hs-varid'>depends</span> <span class='hs-varid'>p2</span>
<a name="line-553"></a> <span class='hs-varop'>&&</span> <span class='hs-varid'>installedPackageId</span> <span class='hs-varid'>p2</span> <span class='hs-varop'>`notElem`</span> <span class='hs-conid'>IPI</span><span class='hs-varop'>.</span><span class='hs-varid'>depends</span> <span class='hs-varid'>p1</span>
<a name="line-554"></a> <span class='hs-varid'>reallyIsInconsistent</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-555"></a>
<a name="line-556"></a>
<a name="line-557"></a><a name="moduleNameIndex"></a><span class='hs-definition'>moduleNameIndex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIndex</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Map</span> <span class='hs-conid'>ModuleName</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstalledPackageInfo</span><span class='hs-keyglyph'>]</span>
<a name="line-558"></a><span class='hs-definition'>moduleNameIndex</span> <span class='hs-varid'>index</span> <span class='hs-keyglyph'>=</span>
<a name="line-559"></a> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>fromListWith</span> <span class='hs-layout'>(</span><span class='hs-varop'>++</span><span class='hs-layout'>)</span>
<a name="line-560"></a> <span class='hs-keyglyph'>[</span> <span class='hs-layout'>(</span><span class='hs-varid'>moduleName</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>pkg</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-561"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>pkg</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>allPackages</span> <span class='hs-varid'>index</span>
<a name="line-562"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>moduleName</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>IPI</span><span class='hs-varop'>.</span><span class='hs-varid'>exposedModules</span> <span class='hs-varid'>pkg</span> <span class='hs-keyglyph'>]</span>
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