feat(agent): ensure images exist when starting build

src/agent/daemon.v

@@ -83,7 +83,7 @@ pub fn (mut d AgentDaemon) run() {
 				// Make sure a recent build base image is available for
 				// building the config
 				if !d.images.up_to_date(config.base_image) {
-					d.linfo("Building builder image from base image $config.base_image")
+					d.linfo('Building builder image from base image $config.base_image')
 
 					// TODO handle this better than to just skip the config
 					d.images.refresh_image(config.base_image) or {

src/agent/images.v

@@ -33,11 +33,12 @@ pub fn (m &ImageManager) get(base_image string) string {
 	return m.images[base_image].last()
 }
 
-// outdated returns whether the last known builder image is exists and is up to
-// date. If this function returns true, the last builder image may be used to
-// perform a build.
+// up_to_date returns whether the last known builder image is exists and is up
+// to date. If this function returns true, the last builder image may be used
+// to perform a build.
 pub fn (mut m ImageManager) up_to_date(base_image string) bool {
-	if base_image !in m.timestamps || m.timestamps[base_image].add_seconds(m.max_image_age) <= time.now() {
+	if base_image !in m.timestamps
+		|| m.timestamps[base_image].add_seconds(m.max_image_age) <= time.now() {
 		return false
 	}