feat(): Add destination directory (#22)

* Added destination directory

* Added output directory

* fix(): fix output dir option

src/index.ts

@@ -20,6 +20,12 @@ parser.addArgument(['-f', '--file'], {
   defaultValue: 'env.yml'
 });
 
+parser.addArgument(['-o', '--output-dir'], {
+  help: 'Output directory of .env',
+  dest: 'outputdir',
+  defaultValue: process.cwd()
+});
+
 const args = parser.parseArgs();
 const config = loadConfig();
 
@@ -38,8 +44,8 @@ rewriter.rewrite(document).then(result => {
   if (errors.length) {
     throw new Error(`Validation errors found in result:\n${errors.join("\n")}`);
   }
-  console.info(`Writing .env file to ${process.cwd()}/.env`);
-  writeFile(result);
+  console.info(`Writing .env file to ${args.outputdir}/.env`);
+  writeFile(result, args.outputdir);
 }).catch((error: Error) => {
   console.error(`Could not write .env file: ${error.stack}`);
   process.exit(1);

src/utils.ts

@@ -1,17 +1,23 @@
 import * as fs from 'fs';
+import * as path from 'path';
 
 import { Document, InputDocument, Config } from './types';
 import { resolvers } from './resolvers';
 
-export function writeFile(document: Document) {
+export function writeFile(document: Document, outputdir?: string) {
   let output = '';
   const keys = Object.keys(document);
   for (const key of keys) {
     if (document[key] !== undefined) {
       output += `${key}=${document[key]}\n`;
     }
   }
-  fs.writeFileSync('.env', output);
+  let filename = '.env';
+  if (outputdir) {
+    filename = path.join(outputdir, filename);
+  }
+
+  fs.writeFileSync(filename, output);
 }