devbox: Fix opening a specific remote folder

internal/cli/cmd/devbox/vscode.go

@@ -9,20 +9,27 @@ import (
 	"fmt"
 	"os"
 	"os/exec"
+	"path/filepath"
 
 	"github.com/spf13/cobra"
 	"namespacelabs.dev/foundation/internal/cli/fncobra"
 )
 
+const (
+	// TODO this should not be hardcoded long term
+	DEVBOX_HOME_DIR = "/home/dev"
+)
+
 func newVscodeCommand() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "code tag [path]",
 		Short: "Initiate a vscode session on the devbox 'tag'.",
-		Long:  "Initiate a vscode session on the devbox 'tag'. If 'path' is given, vscode remote is opened in that path. Otherwise the home directory of the devbox is used as the path.",
+		Long:  "Initiate a vscode session on the devbox 'tag'. If 'path' is given, vscode remote is opened in that path on the devbox. Otherwise the home directory of the devbox is used as the path.",
 		Args:  cobra.RangeArgs(1, 2),
 	}
 
 	cmd.RunE = fncobra.RunE(func(ctx context.Context, args []string) error {
+		// TODO evaluate if supporting "open specific folder on remote" is useful
 		pathOnRemote := "."
 		if len(args) >= 2 {
 			pathOnRemote = args[1]
@@ -52,8 +59,9 @@ func vscodeDevbox(ctx context.Context, tag string, pathOnRemote string) error {
 	// https://code.visualstudio.com/docs/remote/troubleshooting#_connect-to-a-remote-host-from-the-terminal
 	// Note that vscode will offer to install the necessary extension if it's not installed yet.
 	vscodeRemoteSpec := "ssh-remote+" + instance.regionalSshEndpoint
+	absPathOnRemote := filepath.Join(DEVBOX_HOME_DIR, pathOnRemote)
 
-	cmd := exec.Command("code", "--remote", vscodeRemoteSpec, pathOnRemote)
+	cmd := exec.Command("code", "--remote", vscodeRemoteSpec, absPathOnRemote)
 	cmd.Stdout = os.Stdout
 	cmd.Stdin = os.Stdin
 	cmd.Stderr = os.Stderr