Add the home dir command to the preprocessor

Author: CapulusCodeNinja

README.md

@@ -2,7 +2,7 @@
 
 **AI-Powered Windows Crash Dump Analysis Platform**
 
-[![Tests](https://img.shields.io/badge/tests-1,853%20total-brightgreen?style=flat-square)](https://github.com/CapulusCodeNinja/mcp_nexus)
+[![Tests](https://img.shields.io/badge/tests-1,862%20total-brightgreen?style=flat-square)](https://github.com/CapulusCodeNinja/mcp_nexus)
 [![Coverage](https://img.shields.io/badge/coverage-62.62%25-good?style=flat-square)](https://github.com/CapulusCodeNinja/mcp_nexus)
 [![Build](https://img.shields.io/badge/build-0%20warnings-brightgreen?style=flat-square)](https://github.com/CapulusCodeNinja/mcp_nexus)
 [![License](https://img.shields.io/badge/license-Apache%202.0-blue?style=flat-square)](LICENSE)
@@ -317,7 +317,7 @@ dotnet test --filter "Notification"
 
 ### Test Statistics
 
-- ✅ **1,853 total tests** (1,853 passing)
+- ✅ **1,862 total tests** (1,862 passing)
 - ✅ **62.62% line coverage** with comprehensive analysis testing
 - ✅ **0 warnings** in build (clean codebase)
 - ✅ **17+ test categories** covering all major functionality including Extensions

mcp_nexus/Utilities/CommandPreprocessor.cs

@@ -114,13 +114,32 @@ public string PreprocessCommand(string command)
             }
 
             // Handle !homedir (set home directory for extensions and configuration) - ensure directory exists
+            // Convert backslashes to forward slashes to work around CDB's path handling quirks
             else if (result.StartsWith("!homedir", StringComparison.OrdinalIgnoreCase))
             {
-                var match = Regex.Match(result, @"^!homedir\s+(.+)$", RegexOptions.IgnoreCase);
+                var match = Regex.Match(result, @"^(!homedir\s+)(.+)$", RegexOptions.IgnoreCase);
                 if (match.Success)
                 {
-                    var path = match.Groups[1].Value.Trim().Trim('"').Trim('\'');
+                    var commandPrefix = match.Groups[1].Value;
+                    var pathArg = match.Groups[2].Value;
+                    var hasQuotes = pathArg.StartsWith('"') && pathArg.EndsWith('"');
+                    var path = pathArg.Trim().Trim('"').Trim('\'');
+
+                    // Ensure directory exists before converting slashes
                     EnsureDirectoryExists(path);
+
+                    // Convert backslashes to forward slashes (CDB handles these better)
+                    var pathWithForwardSlashes = path.Replace('\\', '/');
+
+                    // Reconstruct command with forward slashes
+                    if (hasQuotes)
+                    {
+                        result = $"{commandPrefix}\"{pathWithForwardSlashes}\"";
+                    }
+                    else
+                    {
+                        result = $"{commandPrefix}{pathWithForwardSlashes}";
+                    }
                 }
             }
 

mcp_nexus_tests/Utilities/CommandPreprocessorTests.cs

@@ -202,13 +202,13 @@ public void PreprocessCommand_WithExistingDirectory_DoesNotFail()
         }
 
         [Theory]
-        [InlineData("!homedir C:\\my\\home\\dir", "!homedir C:\\my\\home\\dir")]
-        [InlineData("!homedir \"C:\\my\\home\\dir\"", "!homedir \"C:\\my\\home\\dir\"")]
-        [InlineData("!homedir /mnt/c/my/home/dir", "!homedir C:\\my\\home\\dir")]
-        [InlineData("!homedir /mnt/analysis/test-path", "!homedir C:\\analysis\\test-path")]
-        [InlineData("!homedir /mnt/share/folder", "!homedir C:\\share\\folder")]
-        [InlineData("!homedir \"/mnt/share/folder\"", "!homedir \"C:\\share\\folder\"")]
-        [InlineData("!HOMEDIR C:\\test", "!HOMEDIR C:\\test")]
+        [InlineData("!homedir C:\\my\\home\\dir", "!homedir C:/my/home/dir")]
+        [InlineData("!homedir \"C:\\my\\home\\dir\"", "!homedir \"C:/my/home/dir\"")]
+        [InlineData("!homedir /mnt/c/my/home/dir", "!homedir C:/my/home/dir")]
+        [InlineData("!homedir /mnt/analysis/test-path", "!homedir C:/analysis/test-path")]
+        [InlineData("!homedir /mnt/share/folder", "!homedir C:/share/folder")]
+        [InlineData("!homedir \"/mnt/share/folder\"", "!homedir \"C:/share/folder\"")]
+        [InlineData("!HOMEDIR C:\\test", "!HOMEDIR C:/test")]
         public void PreprocessCommand_Homedir_ConvertsWslPaths(string input, string expected)
         {
             // Arrange
@@ -235,6 +235,7 @@ public void PreprocessCommand_Homedir_CreatesDirectoryIfNotExists()
             // Arrange
             var tempDir = Path.Combine(Path.GetTempPath(), "test_homedir_" + Guid.NewGuid().ToString("N")[..8]);
             var input = $"!homedir {tempDir}";
+            var expectedPath = tempDir.Replace('\\', '/');
 
             try
             {
@@ -248,7 +249,7 @@ public void PreprocessCommand_Homedir_CreatesDirectoryIfNotExists()
                 var result = m_CommandPreprocessor.PreprocessCommand(input);
 
                 // Assert
-                Assert.Equal($"!homedir {tempDir}", result);
+                Assert.Equal($"!homedir {expectedPath}", result);
                 Assert.True(Directory.Exists(tempDir), "Directory should be created automatically");
             }
             finally
@@ -267,6 +268,7 @@ public void PreprocessCommand_Homedir_WithExistingDirectory_DoesNotFail()
             // Arrange
             var tempDir = Path.Combine(Path.GetTempPath(), "test_homedir_existing_" + Guid.NewGuid().ToString("N")[..8]);
             var input = $"!homedir \"{tempDir}\"";
+            var expectedPath = tempDir.Replace('\\', '/');
 
             try
             {
@@ -277,7 +279,7 @@ public void PreprocessCommand_Homedir_WithExistingDirectory_DoesNotFail()
                 var result = m_CommandPreprocessor.PreprocessCommand(input);
 
                 // Assert
-                Assert.Equal($"!homedir \"{tempDir}\"", result);
+                Assert.Equal($"!homedir \"{expectedPath}\"", result);
                 Assert.True(Directory.Exists(tempDir), "Directory should still exist");
             }
             finally