Ignore case in aliases dll names

The previous code was expecting the passed in name to be a lowercase
substring of the dll file name. It's now expected to be the full name (not
a substring) but allow the case to differ.

Fixes fsprojects#1732

integrationtests/Paket.IntegrationTests/InstallSpecs.fs

@@ -505,4 +505,13 @@ let ``#1720 install concrete netstandard15``() =
     let oldFile = Path.Combine(originalScenarioPath "i001720-explicit-netstandard15","projectA","projectA.fsprojtemplate")
     let s1 = File.ReadAllText oldFile |> normalizeLineEndings
     let s2 = File.ReadAllText newFile |> normalizeLineEndings
+    s2 |> shouldEqual s1
+
+[<Test>]
+let ``#1732 aliases ignore cases``() = 
+    let newLockFile = install "i001732-lowercase-aliases"
+    let newFile = Path.Combine(scenarioTempPath "i001732-lowercase-aliases","MyClassLibrary","MyClassLibrary","MyClassLibrary.csproj")
+    let oldFile = Path.Combine(originalScenarioPath "i001732-lowercase-aliases","MyClassLibrary","MyClassLibrary","MyClassLibrary.csprojtemplate")
+    let s1 = File.ReadAllText oldFile |> normalizeLineEndings
+    let s2 = File.ReadAllText newFile |> normalizeLineEndings
     s2 |> shouldEqual s1

integrationtests/scenarios/i001732-lowercase-aliases/before/MyClassLibrary/MyClassLibrary.sln

@@ -0,0 +1,27 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 14
+VisualStudioVersion = 14.0.23107.0
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = ".paket", ".paket", "{673951A0-5216-4FBD-BA08-7FA057D5CC0D}"
+	ProjectSection(SolutionItems) = preProject
+		..\paket.dependencies = ..\paket.dependencies
+	EndProjectSection
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MyClassLibrary", "MyClassLibrary\MyClassLibrary.csproj", "{CD678800-8DFC-4BB1-911A-7234F492EA29}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{CD678800-8DFC-4BB1-911A-7234F492EA29}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{CD678800-8DFC-4BB1-911A-7234F492EA29}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{CD678800-8DFC-4BB1-911A-7234F492EA29}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{CD678800-8DFC-4BB1-911A-7234F492EA29}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

integrationtests/scenarios/i001732-lowercase-aliases/before/MyClassLibrary/MyClassLibrary/Class1.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MyClassLibrary
+{
+    public class Class1
+    {
+    }
+}

integrationtests/scenarios/i001732-lowercase-aliases/before/MyClassLibrary/MyClassLibrary/MyClassLibrary.csprojtemplate

@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <Import Project="..\..\packages\MultiTarget\build\MultiTarget.props" Condition="Exists('..\..\packages\MultiTarget\build\MultiTarget.props')" Label="Paket" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{CD678800-8DFC-4BB1-911A-7234F492EA29}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>MyClassLibrary</RootNamespace>
+    <AssemblyName>MyClassLibrary</AssemblyName>
+    <TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Class1.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+  <Choose>
+    <When Condition="$(TargetFrameworkIdentifier) == '.NETFramework' And $(TargetFrameworkVersion) == 'v3.5'">
+      <ItemGroup>
+        <Reference Include="Dapper">
+          <HintPath>..\..\packages\Dapper\lib\net35\Dapper.dll</HintPath>
+          <Private>True</Private>
+          <Paket>True</Paket>
+        </Reference>
+      </ItemGroup>
+    </When>
+    <When Condition="($(TargetFrameworkIdentifier) == '.NETStandard' And $(TargetFrameworkVersion) == 'v1.0') Or ($(TargetFrameworkIdentifier) == '.NETFramework' And ($(TargetFrameworkVersion) == 'v4.0'))">
+      <ItemGroup>
+        <Reference Include="Dapper">
+          <HintPath>..\..\packages\Dapper\lib\net40\Dapper.dll</HintPath>
+          <Private>True</Private>
+          <Paket>True</Paket>
+        </Reference>
+      </ItemGroup>
+    </When>
+    <When Condition="($(TargetFrameworkIdentifier) == '.NETStandard' And ($(TargetFrameworkVersion) == 'v1.1' Or $(TargetFrameworkVersion) == 'v1.2' Or $(TargetFrameworkVersion) == 'v1.3' Or $(TargetFrameworkVersion) == 'v1.4' Or $(TargetFrameworkVersion) == 'v1.5')) Or ($(TargetFrameworkIdentifier) == '.NETFramework' And ($(TargetFrameworkVersion) == 'v4.5' Or $(TargetFrameworkVersion) == 'v4.5.1' Or $(TargetFrameworkVersion) == 'v4.5.2' Or $(TargetFrameworkVersion) == 'v4.5.3' Or $(TargetFrameworkVersion) == 'v4.6' Or $(TargetFrameworkVersion) == 'v4.6.1' Or $(TargetFrameworkVersion) == 'v4.6.2'))">
+      <ItemGroup>
+        <Reference Include="Dapper">
+          <HintPath>..\..\packages\Dapper\lib\net45\Dapper.dll</HintPath>
+          <Private>True</Private>
+          <Paket>True</Paket>
+        </Reference>
+      </ItemGroup>
+    </When>
+  </Choose>
+  <ItemGroup>
+    <Reference Include="nunit.framework">
+      <HintPath>..\..\packages\NUnit\lib\nunit.framework.dll</HintPath>
+      <Private>True</Private>
+      <Paket>True</Paket>
+      <Aliases>NUnit2</Aliases>
+    </Reference>
+  </ItemGroup>
+  <Import Project="..\..\packages\MultiTarget\build\MultiTarget.targets" Condition="Exists('..\..\packages\MultiTarget\build\MultiTarget.targets')" Label="Paket" />
+</Project>

integrationtests/scenarios/i001732-lowercase-aliases/before/MyClassLibrary/MyClassLibrary/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("MyClassLibrary")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("MyClassLibrary")]
+[assembly: AssemblyCopyright("Copyright ©  2015")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("cd678800-8dfc-4bb1-911a-7234f492ea29")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

integrationtests/scenarios/i001732-lowercase-aliases/before/MyClassLibrary/MyClassLibrary/paket.references

@@ -0,0 +1,4 @@
+MultiTarget
+Dapper
+NUnit
+  alias Nunit.fraMEWork.dll NUnit2

integrationtests/scenarios/i001732-lowercase-aliases/before/README.md

@@ -0,0 +1 @@
+run ./.paket/paket.exe install and check out csproj file.

integrationtests/scenarios/i001732-lowercase-aliases/before/paket.dependencies

@@ -0,0 +1,5 @@
+source nuget_repo
+
+nuget MultiTarget
+nuget Dapper
+nuget NUnit

src/Paket.Core/ProjectFile.fs

@@ -622,11 +622,9 @@ module ProjectFile =
                 match lib with
                 | Reference.Library lib ->
                     let fi = FileInfo (normalizePath lib)
-                    let l = lib.ToLower()
                     let aliases =
                         aliases
-                        |> Seq.tryFind (fun kv -> l.Contains(kv.Key))
-                        |> Option.map (fun kv -> kv.Value)
+                        |> Map.tryPick (fun dll alias -> if fi.Name.Equals(dll, StringComparison.OrdinalIgnoreCase) then Some(alias) else None)
 
                     let relativePath = createRelativePath project.FileName fi.FullName
                     if relativePath.Contains @"\native\" then createNode "NativeReference" project else createNode "Reference" project