fix: validator needs to use async validate command

Closes #1734

bin/config-validator.js

@@ -7,8 +7,8 @@ const { validateConfig } = require('../lib/config/validation');
 
 let returnVal = 0;
 
-function validate(desc, config) {
-  const res = validateConfig(config);
+async function validate(desc, config) {
+  const res = await validateConfig(config);
   if (res.errors.length) {
     console.log(
       `${desc} contains errors:\n\n${JSON.stringify(res.errors, null, 2)}`
@@ -23,6 +23,7 @@ function validate(desc, config) {
   }
 }
 
+(async () => {
   const renovateConfigFiles = [
     'renovate.json',
     '.renovaterc',
@@ -34,7 +35,7 @@ for (const file of renovateConfigFiles) {
       console.log(`Validating ${file}`);
       try {
         const jsonContent = JSON.parse(rawContent);
-      validate(file, jsonContent);
+        await validate(file, jsonContent);
       } catch (err) {
         console.log(`${file} is not valid JSON`);
         returnVal = 1;
@@ -47,13 +48,13 @@ try {
     const pkgJson = JSON.parse(fs.readFileSync('package.json', 'utf8'));
     if (pkgJson.renovate) {
       console.log(`Validating package.json > renovate`);
-    validate('package.json > renovate', pkgJson.renovate);
+      await validate('package.json > renovate', pkgJson.renovate);
     }
     if (pkgJson['renovate-config']) {
       console.log(`Validating package.json > renovate-config`);
-    Object.values(pkgJson['renovate-config']).forEach(presetConfig => {
-      validate('package.json > renovate-config', presetConfig);
-    });
+      for (const presetConfig of Object.values(pkgJson['renovate-config'])) {
+        await validate('package.json > renovate-config', presetConfig);
+      }
     }
   } catch (err) {
     // ignore
@@ -62,3 +63,4 @@ if (returnVal !== 0) {
     process.exit(returnVal);
   }
   console.log('OK');
+})();