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gulpをv3系から v4系にアップデートした話

gulpをv3系から v4系にアップデートした話

update gulp v3 => v4

nagasawaaaa

October 26, 2019
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  1. HVMQͰग़དྷΔ͜ͱ w FKTɺQVHɺ/VOKVDLTͳͲͷ)5.-ςϯϓϨʔτΤϯδϯΛ࢖ͬͨIUNMͷϏϧυ w 4BTTɺ4UZMVTͳͲͷ"MU$44ͷίϯύΠϧ w ίϯύΠϧ࣌ʹ"VUPQSFpYFSͰϕϯμʔϓϨϑΟοΫεΛࣗಈ෇༩ w ը૾ͷѹॖ w

    8FCQBDLΛ࢖ͬͯ+4Λόϯυϧ w CBCFMΛ࢖ͬͯ+4ΛτϥϯεύΠϧ w 1SFUUJFSͰ+4Λίʔυ੔ܗ w ϒϥ΢βͷࣗಈϦϩʔυʢ#SPXTFS4ZODͳͲʣ w ͦͷଞ ΏΔ8FCษڧձ!ࡳຈ
  2. CBCFMΛ࢖ͬͯHVMQpMFKTΛॻ͜͏ͱ͢Δͱʁ w ϑΝΠϧ໊ΛHVMQpMFCBCFMKTʹมߋ͢Δ w ࣍ͷϞδϡʔϧΛΠϯετʔϧ͢Δ w !CBCFMDPSF !CBCFMSFHJTUFS !CBCFMQPMZpMM !CBCFMDPSFKT

    w CBCFMSD˞Λ࡞੒͠ઃఆΛ௥Ճ JNPSUFYQPSUͱBTZODBXBJU࢖͏৔߹΋όϕΔ˞৔߹͸ख͕͔͔ؒΔɻ HVMQެࣜυΩϡϝϯτʹ͸HVMQpMFCBCFMKTʹมߋͯ͠!CBCFMSFHJTUFSೖΕΖͱ͍͏ ͜ͱ͚ͩॻ͍ͯ͋Δɻ ΏΔ8FCษڧձ!ࡳຈ ˞CBCFMΛ࢖ͬͯτϥϯεύΠϧ͢Δ͜ͱ ˞CBCFMͷઃఆϑΝΠϧ
  3. JNPSUFYQPSUߏจWWൺֱ const gulp = require('gulp'); const runSequence = require('run-sequence'); gulp.task('css',

    () => { console.log('css'); }); gulp.task('js', () => { console.log('js'); }); gulp.task('imagemin', () => { console.log('imagemin'); }); gulp.task('default', cb => { return runSequence('imagemin', ['css', 'js'], cb); }); WHVMQpMFKT import gulp from 'gulp'; async function css () { console.log('css'); } async function js () { console.log('js'); } async function imagemin () { console.log('imagemin'); } const build = gulp.parallel(css, js, imagemin); export default build; WHVMQpMFFTNKT ΏΔ8FCษڧձ!ࡳຈ ˞ॻ͖ํͷࢀߟͰ͋ΓɺλεΫͷத਎͸ద౰Ͱ͢ɻ
  4. λεΫͷ࡞੒ํ๏WWൺֱ ΏΔ8FCษڧձ!ࡳຈ WHVMQpMFFTNKT import { src, dest, parallel } from

    'gulp'; // steram を返す従来に似たパターン function streamCss () { return src('src/**/*.css') .pipe(dest('public_html')); } // Promiseを返すパターン1 async function asyncJs () { console.log('js'); } // Promiseを返すパターン2 function promiseImagemin () { console.log('imagemin'); return Promise.resolve('resolveの値は無視される') } // 何も返さない代わりにError-first callbacksを発火させるパターン function callbackHtml (cb) { console.log('html'); cb(); } const build = parallel(streamCss, asyncJs, callbackHtml, promiseImagemin); export default build; WHVMQpMFKT const gulp = require('gulp'); const imagemin = require('gulp-imagemin'); const runSequence = require('run-sequence'); gulp.task('css', () => { return gulp.src('src/**/*.css') .pipe(gulp.dest('public_html')); }); gulp.task('js', () => { return gulp.src('src/**/*.js') .pipe(gulp.dest('public_html')); }); gulp.task('imagemin', () => { return gulp.src('src/**/*.{gif,jpg,png,svg}') .pipe(imagemin()) .pipe(gulp.dest('public_html')); }); gulp.task('default', cb => { return runSequence('imagemin', ['css', 'js'], cb); }); ˞ॻ͖ํͷࢀߟͰ͋ΓɺλεΫͷத਎͸ద౰Ͱ͢ɻ
  5. ύϒϦοΫλεΫͱϓϥΠϕʔτλεΫ ΏΔ8FCษڧձ!ࡳຈ import { series, parallel } from 'gulp'; import

    clean from './tasks/clean'; // プライベート async function css () { console.log('css'); } // プライベート async function js () { console.log('js'); } // プライベート async function imagemin () { console.log('imagemin'); } // パブリック const build = series( clean, parallel(css, js, imagemin) ); // exportすることによってコマンドラインから使えるようになります export default build; export const cleanDir = clean; ˞ॻ͖ํͷࢀߟͰ͋ΓɺλεΫͷத਎͸ద౰Ͱ͢ɻ ˞QBDLBHFKTPOͷTDSJQUTʹHVMQΛ௥Ճ͍ͯ͠Δ૝ఆͷ࿩Ͱ͢ɻ ӈͷΑ͏ͳHVMQGVMFFTNKTͷ৔߹ɺ FYQPSU͍ͯ͠ΔCVJME σϑΥϧτλεΫ ͱ DMFBO%JSͱ͍͏λεΫ͕ίϚϯυϥΠϯ͔Βୟ͘͜ ͱ͕Ͱ͖ΔύϒϦοΫλεΫͱͯ͠ొ࿥͞Ε·͢ɻ ͦΕҎ֎ͷDTTɺKTɺJNBHFNJOͳͲ͸௚઀ FYQPSU͍ͯ͠ͳ͍ͨΊɺ࣍ͷΑ͏ͳίϚϯυ͕௨Γ ·ͤΜɻ $ npm run gulp $ npm run gulp css Task never defined: css // エラーとなる $ npm run gulp cleanDir
  6. QBSBMMFM TFSJFT ΏΔ8FCษڧձ!ࡳຈ ˞ॻ͖ํͷࢀߟͰ͋ΓɺλεΫͷத਎͸ద౰Ͱ͢ɻ WHVMQpMFFTNKT import { series, parallel }

    from 'gulp'; async function css () { console.log('css'); } async function js () { console.log('js'); } async function imagemin () { console.log('imagemin'); } const build = series( imagemin, parallel(css, js) ); export default build; WHVMQpMFKT const gulp = require('gulp'); const imagemin = require('gulp-imagemin'); const runSequence = require('run-sequence'); gulp.task('css', () => { return gulp.src('src/**/*.css') .pipe(gulp.dest('public_html')); }); gulp.task('js', () => { return gulp.src('src/**/*.js') .pipe(gulp.dest('public_html')); }); gulp.task('imagemin', () => { return gulp.src('src/**/*.{gif,jpg,png,svg}') .pipe(imagemin()) .pipe(gulp.dest('public_html')); }); gulp.task('default', cb => { return runSequence('imagemin', ['css', 'js'], cb); });
  7. ιʔεϚοϓͷग़ྗʹϓϥάΠϯ͕ෆཁʹͳͬͨ ΏΔ8FCษڧձ!ࡳຈ ˞ॻ͖ํͷࢀߟͰ͋ΓɺλεΫͷத਎͸ద౰Ͱ͢ɻ WHVMQpMFFTNKT import { src, dest } from

    'gulp'; import sass from 'gulp-sass'; async function scss () { return src('src/**/*.scss', { base: 'src', sourcemaps: true }) .pipe(sass()) .pipe(dest('public_html', { sourcemaps: './' })); } export const buildSass = scss; WHVMQpMFKT const gulp = require('gulp'); const sass = require('gulp-sass'); const sourcemaps = require('gulp-sourcemaps'); gulp.task('sass', () => { return gulp.src('src/**/*.scss', { base: 'src' }) .pipe(sourcemaps.init()) .pipe(sass()) .pipe(sourcemaps.write('./')) .pipe(gulp.dest('public_html')); }); WܥͰ͸TSDϝιουͱEFTUϝιουͷୈҾ਺ͷΦϓγϣϯʹ TPVSDFNBQTϓϩύςΟΛ౉ͤΔΑ͏ʹͳͬͨɻ USVFʹઃఆ͢ΔͱJOMJOFͰग़ྗ͞Εɺग़ྗ͢ΔύεΛจࣈྻͰઃఆ͢Δͱ֎෦ϑΝΠϧͰग़ྗ͞ΕΔɻ ࢀߟɿIUUQTHVMQKTDPNEPDTFOBQJTSDTPVSDFNBQT