@3wks/generator-gae-node-nestjs/generators/app/index.js

A generator for building nestjs apps on app engine node

'use strict';
const Generator = require('yeoman-generator');
const chalk = require('chalk');
const yosay = require('yosay');
const slugify = require('slugify');
const _ = require('lodash');
const crypto = require('crypto');

const generateKey = bits => crypto.randomBytes(Math.ceil(bits / 8)).toString('base64');

module.exports = class extends Generator {
  prompting() {
    // Have Yeoman greet the user.
    this.log(yosay(`Welcome to the ${chalk.red('@3wks/gae-node-nestjs')} generator!`));

    const prompts = [
      {
        name: 'project',
        message: 'What is the ID of this project?',
        store: true,
        default: slugify(this.appname)
      },
      {
        name: 'projectName',
        message: 'What is the name of this project?',
        store: true,
        default: _.startCase(this.appname)
      },
      {
        name: 'adminEmail',
        message: 'What email address should we use to create the initial admin login?',
        store: true
      },
      {
        name: 'appEngineRegion',
        message: 'What google cloud region will this project run in?',
        store: true,
        default: 'us-central1'
      }
    ];

    return this.prompt(prompts).then(props => {
      // To access props later use this.props.someAnswer;
      this.props = props;
    });
  }

  writing() {
    const context = Object.assign({}, this.props, {
      project: slugify(this.props.project),
      slugify,
      _
    });

    const copyTpl = (src, dest, additionalContext) => {
      const destName = dest || src;
      const srcParam = _.isArray(src)
        ? _.map(src, entry =>
            _.startsWith(entry, '!') ? entry : this.templatePath(entry)
          )
        : this.templatePath(src);

      return this.fs.copyTpl(
        srcParam,
        this.destinationPath(destName),
        _.merge(context, additionalContext || {})
      );
    };

    const copy = (src, dest, options) => {
      const destName = dest || src;
      return this.fs.copy(
        this.templatePath(src),
        this.destinationPath(destName),
        options
      );
    };

    const fileCopyOptions = {
      globOptions: {
        dot: true,
        ignore: ['**/gitignore', '**/env.json']
      }
    };

    copy('client', 'client', fileCopyOptions);
    copy('server', 'server', fileCopyOptions);
    copyTpl('README.md');
    copyTpl('package.json');
    copy('gitignore', '.gitignore');
    copy('client/gitignore', 'client/.gitignore');
    copy('server/gitignore', 'server/.gitignore');
    copyTpl('client/package.json');
    copyTpl('client/public/index.html');
    copyTpl('client/src/components/PageTitle.tsx');
    copyTpl('server/package.json');
    copyTpl('server/config/default.json');
    copyTpl('server/config/development.json', 'server/config/development.json', {
      secret: generateKey(512),
      cookieSecret: generateKey(512)
    });
    copyTpl('server/config/env.json', 'server/config/dev.json', {
      env: 'dev',
      secret: generateKey(512),
      cookieSecret: generateKey(512)
    });
    copyTpl('server/config/env.json', 'server/config/uat.json', {
      env: 'uat',
      secret: generateKey(512),
      cookieSecret: generateKey(512)
    });
    copyTpl('server/config/env.json', 'server/config/prod.json', {
      env: 'prod',
      secret: generateKey(512),
      cookieSecret: generateKey(512)
    });
    copyTpl('client/scripts/kill.sh');
    copyTpl('server/scripts/kill.sh');
  }

  install() {
    this.spawnCommand('npm', ['--prefix=./server', 'install']);
    this.spawnCommand('npm', ['--prefix=./client', 'install']);
  }
};