Use case insensitive compares for paths during harvesting

src/wix/WixToolset.Core/HarvestFilesAndPayloadsCommand.cs

@@ -14,6 +14,7 @@ namespace WixToolset.Core
     internal class HarvestFilesAndPayloadsCommand
     {
         private const string BindPathOpenString = "!(bindpath.";
+        private static readonly char[] SplitSemicolons = { ';' };
 
         public HarvestFilesAndPayloadsCommand(IOptimizeContext context)
         {
@@ -54,8 +55,8 @@ private void HarvestFiles(HarvestFilesSymbol harvestFile, IntermediateSection se
         {
             var unusedSectionCachedInlinedDirectoryIds = new Dictionary<string, string>();
 
-            var inclusions = harvestFile.Inclusions.Split(new[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
-            var exclusions = harvestFile.Exclusions.Split(new[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
+            var inclusions = harvestFile.Inclusions.Split(SplitSemicolons, StringSplitOptions.RemoveEmptyEntries);
+            var exclusions = harvestFile.Exclusions.Split(SplitSemicolons, StringSplitOptions.RemoveEmptyEntries);
 
             var comparer = new WildcardFileComparer();
 
@@ -312,12 +313,12 @@ private class WildcardFileComparer : IEqualityComparer<WildcardFile>
         {
             public bool Equals(WildcardFile x, WildcardFile y)
             {
-                return x?.Path == y?.Path;
+                return StringComparer.OrdinalIgnoreCase.Equals(x?.Path, y?.Path);
             }
 
             public int GetHashCode(WildcardFile obj)
             {
-                return obj?.Path?.GetHashCode() ?? 0;
+                return obj?.Path is null ? 0 : StringComparer.OrdinalIgnoreCase.GetHashCode(obj.Path);
             }
         }
     }

src/wix/test/WixToolsetTest.CoreIntegration/HarvestFilesFixture.cs

@@ -142,6 +142,33 @@ public void CanHarvestFilesInDirectory()
             Build("Directory.wxs", (msiPath, _) => AssertFileIdsAndTargetPaths(msiPath, expected));
         }
 
+        [Fact]
+        public void CanHarvestFilesWithCaseInsensitiveExcludeSubdirectory()
+        {
+            var expected = new[]
+            {
+                @"flsYgiwrDUkZnBEK6iUMkxxaJlD8yQ=PFiles\MsiPackage\test1.txt",
+                @"flslrDWblm4pE.4i4jR58_XyYMmR8I=PFiles\MsiPackage\files1_sub1\files1_sub2\test120.txt",
+                @"flsj.cb0sFWqIPHPFSKJSEEaPDuAQ4=PFiles\MsiPackage\test2.txt",
+            };
+
+            Build("CaseInsensitiveExcludeSubdir.wxs", (msiPath, _) => AssertFileIdsAndTargetPaths(msiPath, expected));
+        }
+
+        [Fact]
+        public void CanHarvestFilesWithCaseInsensitiveIncludeExclude()
+        {
+            var expected = new[]
+            {
+                @"flsaFu0CvigRX6Psea0ic6ZWevzLmI=PFiles\MsiPackage\test3.txt",
+                @"flsJBy_HKCNejalUyud4HisGqhd72E=PFiles\MsiPackage\test4.txt",
+                @"fls05.yw49T0FVAq3Wvq2ihNp3KWfI=PFiles\MsiPackage\files2_sub2\test20.txt",
+                @"flsf0falU_gCTJjtbSCNiFpJQ1d8EM=PFiles\MsiPackage\files2_sub2\test21.txt",
+            };
+
+            Build("CaseInsensitiveIncludeExclude.wxs", (msiPath, _) => AssertFileIdsAndTargetPaths(msiPath, expected));
+        }
+
         [Fact]
         public void CanHarvestFilesInDirectoryRef()
         {

src/wix/test/WixToolsetTest.CoreIntegration/TestData/HarvestFiles/CaseInsensitiveExcludeSubdir.wxs

@@ -0,0 +1,11 @@
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs">
+    <Package Id="WixTest.MsiPackage" Name="MsiPackage" Version="1.0.0.0" Manufacturer="Example Corporation">
+        <StandardDirectory Id="ProgramFilesFolder">
+            <Directory Id="INSTALLFOLDER" Name="MsiPackage" FileSource="$(sys.SOURCEFILEDIR)">
+                <Files Include="files1\**">
+                    <Exclude Files="FILES1\FILES1_SUB1\*" />
+                </Files>
+            </Directory>
+        </StandardDirectory>
+    </Package>
+</Wix>

src/wix/test/WixToolsetTest.CoreIntegration/TestData/HarvestFiles/CaseInsensitiveIncludeExclude.wxs

@@ -0,0 +1,11 @@
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs">
+    <Package Id="WixTest.MsiPackage" Name="MsiPackage" Version="1.0.0.0" Manufacturer="Example Corporation">
+        <StandardDirectory Id="ProgramFilesFolder">
+            <Directory Id="INSTALLFOLDER" Name="MsiPackage" FileSource="$(sys.SOURCEFILEDIR)">
+                <Files Include="FILES2\**\*.TXT">
+                    <Exclude Files="files2\NOTATEST.txt" />
+                </Files>
+            </Directory>
+        </StandardDirectory>
+    </Package>
+</Wix>