Fixes and improves `service show`’s CLI.

src/service.cr

@@ -154,18 +154,19 @@ commands.push "status", "Prints the status of services." do |args|
 end
 
 commands.push "show", "Shows a service's configuration and state." do |args|
+	if args.size < 1
+		STDERR << "usage: service show <id> [id [...]]\n"
+		next
+	end
+
+	args.each do |arg|
+		environment_name, service_name = Service.parse_id arg
+
 		service = Service.all.find do |service|
-		unless service.name == args[0]
+			service.name == service_name &&
-			next false
+				service.environment.name == environment_name
 		end
 
-		env = args[1]? || "root"
-		if service.environment.name != env
-			next false
-		end
-
-		true
-	end
 		if service
 			puts service.summary
 		else
@@ -173,6 +174,7 @@ commands.push "show", "Shows a service's configuration and state." do |args|
 			exit 2
 		end
 	end
+end
 
 commands.push "add-environment", "Creates a new (empty) environment." do |arg|
 	Environment.new(args[9]).write ENVIRONMENTS_DIRECTORY