Fix init to throw error and stop if config already exists

src/screenshot/helper.ts

@@ -13,7 +13,8 @@ export function createInitConfig(baseUrl: string): string {
 
 # The title is used to describe the screenshot run
 title: "My screenshot automation"
-# The baseUrl is the Cumulocity base URL and can be overwritten by the command line argument
+# The baseUrl is the Cumulocity URL and can be overwritten by the command line argument
+# All visit URLs are relative to this baseUrl
 baseUrl: "${baseUrl}"
 
 global:

src/screenshot/startup.ts

@@ -36,10 +36,10 @@ const log = debug("c8y:c8yscrn:startup");
       if (!fs.existsSync(yamlFile)) {
         fs.writeFileSync(yamlFile, createInitConfig(baseUrl), "utf8");
         log(`Config file ${yamlFile} created.`);
-        return;
       } else {
-        log(`Config file ${yamlFile} already exists. Skipping init.`);
+        throw new Error(`Config file ${yamlFile} already exists.`);
       }
+      return;
     }
 
     if (!fs.existsSync(yamlFile)) {