feat: added shutdown method in app template (#22)

ISSUE: ServiceWeaver/weaver#275

A method to shut down the app/component was implemented in Service
Weaver
and then we implemented it here.

internal/version.go

@@ -7,7 +7,7 @@ import (
 	"strings"
 )
 
-const Version = "v0.5.2"
+const Version = "v0.5.3"
 
 func ValidateLatestVersion() {
 	cmd := exec.Command("go", "list", "-m", "github.com/renanbastos93/boneless@latest")

templates/files/component.go.tpl

@@ -30,7 +30,8 @@ type Config struct {
 type implapp struct {
 	weaver.Implements[Component]
 	weaver.WithConfig[Config]
-	db *store.Queries
+	dbConn *sql.DB
+	db     *store.Queries
 }
 
 func (e *implapp) Init(ctx context.Context) error {
@@ -44,10 +45,17 @@ func (e *implapp) Init(ctx context.Context) error {
 		return fmt.Errorf("failed to ping: %w", err)
 	}
 
+	e.dbConn = db
 	e.db = store.New(db)
 	return nil
 }
 
+
+func (e *implapp) Shutdown(ctx context.Context) error {
+	// TODO: create your logic to shutdown the component
+	return e.dbConn.Close()
+}
+
 func (e implapp) AllExamples(ctx context.Context) (out AllExamplesOut, err error) {
 	examples, err := e.db.ListExamples(ctx)
 	if err != nil {