Fix bugs in lint script

Author: cdimitroulas

package.json

@@ -24,7 +24,8 @@
   "author": "Christos Dimitroulas",
   "license": "ISC",
   "dependencies": {
-    "@types/node": "^12.7.2",
+    "@typescript-eslint/eslint-plugin": "^2.0.0",
+    "@typescript-eslint/parser": "^2.0.0",
     "cross-spawn": "^6.0.5",
     "eslint": "^6.2.2",
     "eslint-config-prettier": "^6.1.0",
@@ -35,9 +36,8 @@
   },
   "devDependencies": {
     "@types/cross-spawn": "^6.0.0",
+    "@types/node": "^12.7.2",
     "@types/yargs-parser": "^13.0.0",
-    "@typescript-eslint/eslint-plugin": "^2.0.0",
-    "@typescript-eslint/parser": "^2.0.0",
     "np": "^5.0.3"
   },
   "bin": "./lib/index.js",

scripts/lint.ts

@@ -4,7 +4,7 @@ import spawn from "cross-spawn";
 import yargsParser from "yargs-parser";
 
 const appDirectory = fs.realpathSync(process.cwd());
-const args = process.argv.slice(2);
+const args = process.argv.slice(3);
 const parsedArgs = yargsParser(args);
 
 function lint(): number {
@@ -13,12 +13,16 @@ function lint(): number {
   const otherArgs = args.filter(arg => !parsedArgs._.includes(arg));
 
   const result = spawn.sync(
-    path.join(__dirname, "../node_modules/.bin/eslint"),
+    path.join(appDirectory, "./node_modules/.bin/eslint"),
     ["--config", configPath, "--ext", ".js,.ts", ...otherArgs, ...filesToLint],
     { stdio: "inherit" }
   );
 
-  return result.status ? result.status : 0;
+  if (result.error) {
+    console.error(result.error)
+  }
+
+  return typeof result.status === 'number' ? result.status : 1;
 }
 
 function getEslintConfigPath(): string {