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2
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
/**
 * @license
 * Copyright (c) 2016 The Polymer Project Authors. All rights reserved.
 * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
 * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
 * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
 * Code distributed by Google as part of the polymer project is also
 * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
 */
 
'use strict';
 
const depcheck = require('depcheck');
const eslint = require('gulp-eslint');
const fs = require('fs-extra');
const gulp = require('gulp');
const mergeStream = require('merge-stream');
const mocha = require('gulp-mocha');
const path = require('path');
const runSeq = require('run-sequence');
const tslint = require("gulp-tslint");
const typescript = require('gulp-typescript');
 
const tsProject = typescript.createProject('tsconfig.json');
 
gulp.task('lint', ['tslint', 'eslint', 'depcheck']);
 
gulp.task('clean', (done) => {
  fs.remove(path.join(__dirname, 'lib'), done);
});
 
gulp.task('build', ['clean'], () => {
  let tsReporter = typescript.reporter.defaultReporter();
  return mergeStream(
      tsProject.src().pipe(tsProject(tsReporter)),
      gulp.src(['src/**/*', '!src/**/*.ts'])
    ).pipe(gulp.dest('lib'));
});
 
gulp.task('test', ['build'], () =>
  gulp.src('test/unit/**/*_test.js', {read: false})
      .pipe(mocha({
        ui: 'tdd',
        reporter: 'spec',
      }))
);
 
gulp.task('test:integration', ['build'], () =>
  gulp.src(['test/integration/**/*_test.js'], {read: false})
      .pipe(mocha({
        ui: 'tdd',
        reporter: 'spec',
      }))
);
 
 
gulp.task('tslint', () =>
  gulp.src('src/**/*.ts')
    .pipe(tslint({
      configuration: 'tslint.json',
    }))
    .pipe(tslint.report('verbose')));
 
gulp.task('eslint', () =>
  gulp.src('test/**/*_test.js')
    .pipe(eslint())
    .pipe(eslint.format())
    .pipe(eslint.failAfterError()));
 
gulp.task('depcheck', () =>
  depcheck(__dirname, {
      // "@types/*" dependencies are type declarations that are automatically
      // loaded by TypeScript during build. depcheck can't detect this
      // so we ignore them here.
      ignoreMatches: ['@types/*', 'vinyl']
    })
    .then((result) => {
      let invalidFiles = Object.keys(result.invalidFiles) || [];
      let invalidJsFiles = invalidFiles.filter((f) => f.endsWith('.js'));
      if (invalidJsFiles.length > 0) {
        throw new Error(`Invalid files: ${invalidJsFiles}`);
      }
      if (result.dependencies.length) {
        throw new Error(`Unused dependencies: ${result.dependencies}`);
      }
  }));