gulpfile.js

// Copyright (c) 2019-2020-2021 Luca Cappa
// Released under the term specified in file LICENSE.txt
// SPDX short identifier: MIT

const gulp = require('gulp');
const path = require('path');
const install = require('gulp-install');
const ts = require("gulp-typescript");
const sourcemaps = require("gulp-sourcemaps");
const eslint = require('gulp-eslint');
const jest = require('gulp-jest-acierto').default;

var installPackages = function () {
  return gulp.src([
    "./package.json"]).pipe(install());
}

var build = function () {
  tsProject = ts.createProject('./tsconfig.json');
  return tsProject.src()
    .pipe(sourcemaps.init())
    .pipe(tsProject())
    .pipe(sourcemaps.write('.'))
    .pipe(gulp.dest(path.join('build')))
}

var eslinter = function () {
  // lint only the files of the action, e.g. not of the /libs/
  return gulp.src(['src/**/*.ts'])
    // eslint() attaches the lint output to the "eslint" property
    // of the file object so it can be used by other modules.
    .pipe(eslint())
    // eslint.format() outputs the lint results to the console.
    // Alternatively use eslint.formatEach() (see Docs).
    .pipe(eslint.format())
    // To have the process exit with an error code (1) on
    // lint error, return the stream and pipe to failAfterError last.
    .pipe(eslint.failAfterError());
}

// Copy the assets-lib provided matchers.
var copyMatchersJson = function () {
  return gulp.src(
    ['./node_modules/@lukka/assets-lib/src/matchers/*.json'])
    .pipe(gulp.dest('./dist/'));
}

var test = function () {
  return gulp.src('__tests__').pipe(jest({
    "preprocessorIgnorePatterns": [
      "<rootDir>/dist/", "<rootDir>/node_modules/"
    ],
    "automock": false
  }));
}

gulp.task('test', test);
gulp.task('eslint', eslinter);
gulp.task('copyMatchersJson', copyMatchersJson);
gulp.task('build', build);
gulp.task('installPackages', installPackages);
// 'test' must not be part of the 'default' target, as it is started explicitly *after* ncc has been run by the package.json run script.
gulp.task('default', gulp.series('installPackages', 'eslint', 'build', 'copyMatchersJson'));