fix(ci): resolve integration test failures

Multiple issues fixed:

1. Add --yes flag to uninstall command
   - Workflow was using --yes but it wasn't implemented
   - Caused "unknown flag: --yes" errors

2. Fix path.ShimsDir() to respect XDG on Linux
   - path.ShimsDir() always returned ~/.dtvem/shims
   - config.DefaultPaths().Shims returned ~/.local/share/dtvem/shims on Linux
   - This mismatch caused shims to be created in one location but PATH
     pointed to another, so "no version configured" errors appeared

3. Update workflow PATH setup for Linux XDG compliance
   - Workflows hardcoded ~/.dtvem/shims for all Unix platforms
   - Now correctly uses ~/.local/share/dtvem on Linux

Author: CalvinAllen

.github/workflows/integration-test-node.yml

@@ -74,8 +74,14 @@ jobs:
       - name: Add shims to PATH (Unix)
         if: matrix.platform != 'windows'
         run: |
-          echo "$HOME/.dtvem/shims" >> $GITHUB_PATH
-          echo "$HOME/.dtvem/bin" >> $GITHUB_PATH
+          # Linux uses XDG path (~/.local/share/dtvem), macOS uses ~/.dtvem
+          if [[ "$RUNNER_OS" == "Linux" ]]; then
+            DTVEM_ROOT="${XDG_DATA_HOME:-$HOME/.local/share}/dtvem"
+          else
+            DTVEM_ROOT="$HOME/.dtvem"
+          fi
+          echo "$DTVEM_ROOT/shims" >> $GITHUB_PATH
+          echo "$DTVEM_ROOT/bin" >> $GITHUB_PATH
 
       - name: Add shims to PATH (Windows)
         if: matrix.platform == 'windows'

.github/workflows/integration-test-python.yml

@@ -74,8 +74,14 @@ jobs:
       - name: Add shims to PATH (Unix)
         if: matrix.platform != 'windows'
         run: |
-          echo "$HOME/.dtvem/shims" >> $GITHUB_PATH
-          echo "$HOME/.dtvem/bin" >> $GITHUB_PATH
+          # Linux uses XDG path (~/.local/share/dtvem), macOS uses ~/.dtvem
+          if [[ "$RUNNER_OS" == "Linux" ]]; then
+            DTVEM_ROOT="${XDG_DATA_HOME:-$HOME/.local/share}/dtvem"
+          else
+            DTVEM_ROOT="$HOME/.dtvem"
+          fi
+          echo "$DTVEM_ROOT/shims" >> $GITHUB_PATH
+          echo "$DTVEM_ROOT/bin" >> $GITHUB_PATH
 
       - name: Add shims to PATH (Windows)
         if: matrix.platform == 'windows'

.github/workflows/integration-test-ruby.yml

@@ -74,8 +74,14 @@ jobs:
       - name: Add shims to PATH (Unix)
         if: matrix.platform != 'windows'
         run: |
-          echo "$HOME/.dtvem/shims" >> $GITHUB_PATH
-          echo "$HOME/.dtvem/bin" >> $GITHUB_PATH
+          # Linux uses XDG path (~/.local/share/dtvem), macOS uses ~/.dtvem
+          if [[ "$RUNNER_OS" == "Linux" ]]; then
+            DTVEM_ROOT="${XDG_DATA_HOME:-$HOME/.local/share}/dtvem"
+          else
+            DTVEM_ROOT="$HOME/.dtvem"
+          fi
+          echo "$DTVEM_ROOT/shims" >> $GITHUB_PATH
+          echo "$DTVEM_ROOT/bin" >> $GITHUB_PATH
 
       - name: Add shims to PATH (Windows)
         if: matrix.platform == 'windows'

src/cmd/uninstall.go

@@ -13,6 +13,8 @@ import (
 	"github.com/spf13/cobra"
 )
 
+var uninstallYes bool
+
 var uninstallCmd = &cobra.Command{
 	Use:   "uninstall <runtime> <version>",
 	Short: "Uninstall a specific runtime version",
@@ -28,7 +30,8 @@ Safety features:
 
 Examples:
   dtvem uninstall python 3.11.0
-  dtvem uninstall node 18.16.0`,
+  dtvem uninstall node 18.16.0
+  dtvem uninstall node 18.16.0 --yes    # Skip confirmation prompt`,
 	Args: cobra.ExactArgs(2),
 	Run: func(cmd *cobra.Command, args []string) {
 		runtimeName := args[0]
@@ -72,19 +75,21 @@ Examples:
 			ui.Info("You may need to update or remove it after uninstalling")
 		}
 
-		// Prompt for confirmation
-		fmt.Printf("\n")
-		ui.Warning("This will permanently delete:")
-		ui.Info("  %s", versionPath)
-		fmt.Printf("\nAre you sure you want to uninstall %s v%s? [y/N]: ", provider.DisplayName(), version)
+		// Prompt for confirmation (unless --yes flag is provided)
+		if !uninstallYes {
+			fmt.Printf("\n")
+			ui.Warning("This will permanently delete:")
+			ui.Info("  %s", versionPath)
+			fmt.Printf("\nAre you sure you want to uninstall %s v%s? [y/N]: ", provider.DisplayName(), version)
 
-		var response string
-		_, _ = fmt.Scanln(&response)
-		response = strings.ToLower(strings.TrimSpace(response))
+			var response string
+			_, _ = fmt.Scanln(&response)
+			response = strings.ToLower(strings.TrimSpace(response))
 
-		if response != constants.ResponseY && response != constants.ResponseYes {
-			ui.Info("Uninstall canceled")
-			return
+			if response != constants.ResponseY && response != constants.ResponseYes {
+				ui.Info("Uninstall canceled")
+				return
+			}
 		}
 
 		// Remove the version directory
@@ -121,5 +126,6 @@ Examples:
 }
 
 func init() {
+	uninstallCmd.Flags().BoolVarP(&uninstallYes, "yes", "y", false, "Skip confirmation prompt")
 	rootCmd.AddCommand(uninstallCmd)
 }

src/internal/path/path.go

@@ -35,12 +35,29 @@ func IsInPath(dir string) bool {
 }
 
 // ShimsDir returns the path to the shims directory
-// This is a helper to avoid circular dependencies with config package
+// This replicates the root directory logic from config package to avoid circular dependencies.
+// Must stay in sync with config.getRootDir().
 func ShimsDir() string {
+	// Check for DTVEM_ROOT environment variable first (overrides all)
+	if root := os.Getenv("DTVEM_ROOT"); root != "" {
+		return filepath.Join(root, "shims")
+	}
+
 	home, err := os.UserHomeDir()
 	if err != nil {
 		return ""
 	}
+
+	// On Linux, respect XDG Base Directory specification
+	if runtime.GOOS == "linux" {
+		if xdgDataHome := os.Getenv("XDG_DATA_HOME"); xdgDataHome != "" {
+			return filepath.Join(xdgDataHome, "dtvem", "shims")
+		}
+		// XDG default: ~/.local/share
+		return filepath.Join(home, ".local", "share", "dtvem", "shims")
+	}
+
+	// On macOS and Windows, use ~/.dtvem
 	return filepath.Join(home, ".dtvem", "shims")
 }
 

src/internal/path/path_test.go

@@ -93,9 +93,9 @@ func TestShimsDir(t *testing.T) {
 		t.Error("ShimsDir() returned empty string")
 	}
 
-	// Should contain .dtvem
-	if !strings.Contains(result, ".dtvem") {
-		t.Errorf("ShimsDir() = %q, should contain '.dtvem'", result)
+	// Should contain 'dtvem' (either .dtvem or .local/share/dtvem on Linux)
+	if !strings.Contains(result, "dtvem") {
+		t.Errorf("ShimsDir() = %q, should contain 'dtvem'", result)
 	}
 
 	// Should end with 'shims'