feat: Add path command to show absolute path of installed SDKs

cmd/cmd.go

@@ -98,6 +98,7 @@ func newCmd() *cmd {
 		commands.Env,
 		commands.Config,
 		commands.Cd,
+		commands.Path,
 	}
 
 	return &cmd{app: app, version: version}

cmd/commands/path.go

@@ -0,0 +1,67 @@
+/*
+ *    Copyright 2025 Han Li and contributors
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+package commands
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/urfave/cli/v2"
+	"github.com/version-fox/vfox/internal"
+	"github.com/version-fox/vfox/internal/base"
+)
+
+var Path = &cli.Command{
+	Name:      "path",
+	Usage:     "Show the absolute path of an installed SDK",
+	UsageText: "vfox path <sdk>@<version>",
+	Action:    pathCmd,
+	Category:  CategorySDK,
+}
+
+func pathCmd(ctx *cli.Context) error {
+	args := ctx.Args()
+	if args.First() == "" {
+		return cli.Exit("sdk name and version are required (e.g. nodejs@24)", 1)
+	}
+
+	sdkArg := args.First()
+	argArr := strings.Split(sdkArg, "@")
+	if len(argArr) != 2 {
+		return cli.Exit("invalid format, expected <sdk>@<version> (e.g. nodejs@24)", 1)
+	}
+
+	name := strings.ToLower(argArr[0])
+	version := base.Version(argArr[1])
+
+	manager := internal.NewSdkManager()
+	defer manager.Close()
+
+	source, err := manager.LookupSdk(name)
+	if err != nil {
+		fmt.Println("notfound")
+		return nil
+	}
+
+	if source.CheckExists(version) {
+		fmt.Println(source.VersionPath(version))
+	} else {
+		fmt.Println("notfound")
+	}
+
+	return nil
+}

cmd/commands/path_test.go

@@ -0,0 +1,17 @@
+package commands
+
+import (
+	"testing"
+)
+
+func TestPathCommand(t *testing.T) {
+	// This is a placeholder test for the path command
+	// In a real implementation, we would test the actual command logic
+	if Path.Name != "path" {
+		t.Errorf("Expected command name to be 'path', got '%s'", Path.Name)
+	}
+
+	if Path.Usage != "Show the absolute path of an installed SDK" {
+		t.Errorf("Expected usage to be 'Show the absolute path of an installed SDK', got '%s'", Path.Usage)
+	}
+}