feat: add ability to make workspace for other user from cli (#8481)

* feat: add ability to make workspace for other user from cli
* Add example to show functionality

cli/root.go

@@ -626,24 +626,30 @@ func CurrentOrganization(inv *clibase.Invocation, client *codersdk.Client) (code
 	return orgs[0], nil
 }
 
+func splitNamedWorkspace(identifier string) (owner string, workspaceName string, err error) {
+	parts := strings.Split(identifier, "/")
+
+	switch len(parts) {
+	case 1:
+		owner = codersdk.Me
+		workspaceName = parts[0]
+	case 2:
+		owner = parts[0]
+		workspaceName = parts[1]
+	default:
+		return "", "", xerrors.Errorf("invalid workspace name: %q", identifier)
+	}
+	return owner, workspaceName, nil
+}
+
 // namedWorkspace fetches and returns a workspace by an identifier, which may be either
 // a bare name (for a workspace owned by the current user) or a "user/workspace" combination,
 // where user is either a username or UUID.
 func namedWorkspace(ctx context.Context, client *codersdk.Client, identifier string) (codersdk.Workspace, error) {
-	parts := strings.Split(identifier, "/")
-
-	var owner, name string
-	switch len(parts) {
-	case 1:
-		owner = codersdk.Me
-		name = parts[0]
-	case 2:
-		owner = parts[0]
-		name = parts[1]
-	default:
-		return codersdk.Workspace{}, xerrors.Errorf("invalid workspace name: %q", identifier)
+	owner, name, err := splitNamedWorkspace(identifier)
+	if err != nil {
+		return codersdk.Workspace{}, err
 	}
-
 	return client.WorkspaceByOwnerAndName(ctx, owner, name, codersdk.WorkspaceOptions{})
 }