create-oclif/lib/generators/hook.js

oclif: create your own CLI

"use strict";
// tslint:disable no-floating-promises
// tslint:disable no-console
const _ = require("lodash");
const path = require("path");
const Generator = require("yeoman-generator");
const yosay = require("yosay");
const { version } = require('../../package.json');
class HookGenerator extends Generator {
    constructor(args, options) {
        super(args, options);
        this.options = options;
    }
    get _path() { return this.options.name.split(':').join('/'); }
    get _ts() { return this.pjson.devDependencies.typescript; }
    get _ext() { return this._ts ? 'ts' : 'js'; }
    get _mocha() { return this.pjson.devDependencies.mocha; }
    async prompting() {
        this.pjson = this.fs.readJSON('package.json');
        this.pjson.oclif = this.pjson.oclif || {};
        if (!this.pjson)
            throw new Error('not in a project directory');
        this.log(yosay(`Adding a ${this.options.event} hook to ${this.pjson.name} Version: ${version}`));
    }
    writing() {
        this.sourceRoot(path.join(__dirname, '../../templates'));
        this.fs.copyTpl(this.templatePath(`src/hook.${this._ext}.ejs`), this.destinationPath(`src/hooks/${this.options.event}/${this.options.name}.${this._ext}`), this);
        if (this._mocha) {
            this.fs.copyTpl(this.templatePath(`test/hook.test.${this._ext}.ejs`), this.destinationPath(`test/commands/${this._path}.test.${this._ext}`), this);
        }
        this.pjson.oclif = this.pjson.oclif || {};
        let hooks = this.pjson.oclif.hooks = this.pjson.oclif.hooks || {};
        let p = `./${this._ts ? 'lib' : 'src'}/hooks/${this.options.event}/${this.options.name}`;
        if (hooks[this.options.event]) {
            hooks[this.options.event] = _.castArray(hooks[this.options.event]);
            hooks[this.options.event].push(p);
        }
        else {
            this.pjson.oclif.hooks[this.options.event] = p;
        }
        this.fs.writeJSON(this.destinationPath('./package.json'), this.pjson);
    }
}
module.exports = HookGenerator;