Ignore .editorconfig file included in the .csharpierignore file

Src/CSharpier.Cli/EditorConfig/EditorConfigParser.cs

@@ -12,7 +12,8 @@ internal static class EditorConfigParser
     /// <summary>Finds all configs above the given directory as well as within the subtree of this directory</summary>
     public static List<EditorConfigSections> FindForDirectoryName(
         string directoryName,
-        IFileSystem fileSystem
+        IFileSystem fileSystem,
+        IgnoreFile ignoreFile
     )
     {
         if (directoryName is "")
@@ -24,6 +25,7 @@ IFileSystem fileSystem
         // TODO this is probably killing performance if nothing else when piping a single file
         var editorConfigFiles = directoryInfo
             .EnumerateFiles(".editorconfig", SearchOption.AllDirectories)
+            .Where(x => !ignoreFile.IsIgnored(x.FullName))
             .ToList();
 
         // already found any in this directory above

Src/CSharpier.Cli/IgnoreFile.cs

@@ -1,5 +1,4 @@
 using System.IO.Abstractions;
-using Microsoft.Extensions.Logging;
 
 namespace CSharpier.Cli;
 

Src/CSharpier.Cli/Options/OptionsProvider.cs

@@ -48,20 +48,25 @@ CancellationToken cancellationToken
 
         IList<EditorConfigSections>? editorConfigSections = null;
 
+        var ignoreFile = await IgnoreFile.Create(directoryName, fileSystem, cancellationToken);
+
         try
         {
             editorConfigSections = EditorConfigParser.FindForDirectoryName(
                 directoryName,
-                fileSystem
+                fileSystem,
+                ignoreFile
             );
         }
         catch (Exception ex)
         {
-            logger.LogError(ex, $"Failure parsing editorconfig files for {directoryName}");
+            logger.LogError(
+                ex,
+                "Failure parsing editorconfig files for {DirectoryName}",
+                directoryName
+            );
         }
 
-        var ignoreFile = await IgnoreFile.Create(directoryName, fileSystem, cancellationToken);
-
         return new OptionsProvider(
             editorConfigSections ?? Array.Empty<EditorConfigSections>(),
             csharpierConfigs,

Src/CSharpier.Tests/OptionsProviderTests.cs

@@ -520,6 +520,53 @@ public async Task Should_Not_Prefer_Closer_EditorConfig()
         result.TabWidth.Should().Be(1);
     }
 
+    [Test]
+    public async Task Should_Ignore_Invalid_EditorConfig()
+    {
+        var context = new TestContext();
+        context.WhenAFileExists(
+            "c:/test/.editorconfig",
+            @"
+[*]
+indent_size = 2
+INVALID
+"
+        );
+
+        var result = await context.CreateProviderAndGetOptionsFor("c:/test", "c:/test/test.cs");
+
+        result.TabWidth.Should().Be(4);
+    }
+
+    [Test]
+    public async Task Should_Ignore_Ignored_EditorConfig()
+    {
+        var context = new TestContext();
+        context.WhenAFileExists(
+            "c:/test/subfolder/.editorconfig",
+            @"
+    [*]
+    indent_size = 2
+    "
+        );
+
+        context.WhenAFileExists(
+            "c:/test/.editorconfig",
+            @"
+    [*]
+    indent_size = 1
+    "
+        );
+
+        context.WhenAFileExists("c:/test/.csharpierignore", "/subfolder/.editorconfig");
+
+        var result = await context.CreateProviderAndGetOptionsFor(
+            "c:/test",
+            "c:/test/subfolder/test.cs"
+        );
+        result.TabWidth.Should().Be(1);
+    }
+
     [Test]
     public async Task Should_Prefer_Closer_CSharpierrc()
     {