fix(reversesshfs): convert MSYS2 paths to native Windows paths for OpenSSH

pkg/reversesshfs/reversesshfs.go

@@ -133,7 +133,11 @@ func (rsf *ReverseSSHFS) Start() error {
 	}
 	if runtime.GOOS == "windows" && path.IsAbs(rsf.LocalPath) {
 		logrus.Infof("Accepting %q Unix path, assuming Cygwin/msys2 OpenSSH", rsf.LocalPath)
+		// Convert MSYS2 path to Windows native path
+		rsf.LocalPath = convertMSYS2Path(rsf.LocalPath)
+		logrus.Infof("Converted path for native Windows OpenSSH: %q", rsf.LocalPath)
 	}
+
 	if !path.IsAbs(rsf.RemotePath) {
 		return fmt.Errorf("unexpected relative path: %q", rsf.RemotePath)
 	}
@@ -327,3 +331,14 @@ func (rsf *ReverseSSHFS) Close() error {
 	}
 	return nil
 }
+
+// convertMSYS2Path converts an MSYS2 style path (e.g., /c/Users/...) to a Windows native path
+func convertMSYS2Path(localPath string) string {
+	if len(localPath) >= 3 && localPath[0] == '/' && localPath[2] == '/' {
+		driveLetter := strings.ToUpper(string(localPath[1]))
+		// Explicitly force backslashes, bypassing WSL/Linux environment quirks
+		remainingPath := strings.ReplaceAll(localPath[2:], "/", "\\")
+		return driveLetter + ":" + remainingPath
+	}
+	return localPath
+}

pkg/reversesshfs/reversesshfs_test.go

@@ -33,3 +33,16 @@ func TestAddQuotes(t *testing.T) {
 		}
 	}
 }
+
+func TestConvertMSYS2Path(t *testing.T) {
+	inputPath := "/c/Users/lts"
+	expectedPath := "C:\\Users\\lts"
+
+	actualPath := convertMSYS2Path(inputPath)
+
+	if actualPath != expectedPath {
+		t.Errorf("Conversion failed: expected %q, got %q", expectedPath, actualPath)
+	} else {
+		t.Logf("Success! Converted path for native Windows OpenSSH: %q", actualPath)
+	}
+}