Quick helper scripts for angular projects

tsPaths.js

#! /usr/bin/env node
const fs = require('fs');

const files = [
  'src/tsconfig.app.json',
  'src/tsconfig.server.json',
  'src/tsconfig.spec.json'
];

const paths = {
  "@lib/*": [
    "libs/*"
  ],
  "@app/*": [
    "app/*"
  ]
};

function updateConfig(files) {
  for (let file of files) {
    try {
      fs.readFile(file, (err, contents) => {
        if (err) console.warn(`Error from readFile ${file}:`, err);
        let json = JSON.parse(contents);
        if (json.compilerOptions) {
          let existingPaths = json.compilerOptions.paths || {};
          json.compilerOptions = {
            ...json.compilerOptions,
            paths: {
              ...existingPaths,
              ...paths
            }
          }
        }
        let config = JSON.stringify(json, null, 2);

        fs.writeFile(file, config, (err) => {
          if (err) console.warn(`Error from writeFile ${file}:`, err);
        });
      });
    } catch (e) {
      console.error(`Error thrown updating ${file}: `, e);
    }
  }
}

updateConfig(files);