用gulp搭建小程序開發編譯環境

版本：v1.0

功能：

• sass編譯轉wxss
• es6轉es5
• js代碼壓縮
• css代碼壓縮
• 文件監控
• json檢測
• 語法報錯提示

//gulpfile.js
const gulp = require('gulp')
const del = require('del')
const path = require('path')
const autoprefixer = require('gulp-autoprefixer')
const htmlmin = require('gulp-htmlmin')
const sass = require('gulp-sass')
const jsonminify = require('gulp-jsonminify2')
const gutil = require('gulp-util')
const combiner = require('stream-combiner2');
const babel = require('gulp-babel')
const uglify = require('gulp-uglify')
const rename = require("gulp-rename")
const minifycss = require('gulp-minify-css')
const runSequence = require('run-sequence')
const jsonlint = require("gulp-jsonlint")
const plumber = require("gulp-plumber")

var colors = gutil.colors;
const handleError = function (err) {
  console.log('\n')
  gutil.log(colors.red('Error!'))
  gutil.log('fileName: ' + colors.red(err.fileName))
  gutil.log('lineNumber: ' + colors.red(err.lineNumber))
  gutil.log('message: ' + err.message)
  gutil.log('plugin: ' + colors.yellow(err.plugin))
};

gulp.task('clean', () => {
  return del(['./dist/**'])
})

gulp.task('watch', () => {
  gulp.watch('./src/**/*.json', ['json']);
  gulp.watch('./src/assets/**', ['assets']);
  gulp.watch('./src/**/*.wxml', ['templates']);
  gulp.watch('./src/**/*.wxss', ['wxss']);
  gulp.watch('./src/**/*.scss', ['wxss']);
  gulp.watch('./src/**/*.js', ['scripts']);
});

gulp.task('jsonLint', () => {
  var combined = combiner.obj([
    gulp.src(['./src/**/*.json']),
    jsonlint(),
    jsonlint.reporter(),
    jsonlint.failAfterError()
  ]);

  combined.on('error', handleError);
});

gulp.task('json', ['jsonLint'], () => {
  return gulp.src('./src/**/*.json')
    .pipe(gulp.dest('./dist'))
})

gulp.task('jsonPro', ['jsonLint'], () => {
  return gulp.src('./src/**/*.json')
    .pipe(jsonminify())
    .pipe(gulp.dest('./dist'))
})

gulp.task('assets', () => {
  return gulp.src('./src/assets/**')
    .pipe(gulp.dest('./dist/assets'))
})

gulp.task('images', () => {
  return gulp.src('./src/images/**')
    .pipe(gulp.dest('./dist/images'))
})

gulp.task('templates', () => {
  return gulp.src('./src/**/*.wxml')
    .pipe(gulp.dest('./dist'))
})

gulp.task('templatesPro', () => {
  return gulp.src('./src/**/*.wxml')
    // .pipe(htmlmin({
    // collapseWhitespace: true,
    // removeComments: true,
    // keepClosingSlash: true
    // }))
    .pipe(gulp.dest('./dist'))
});

gulp.task('wxss', () => {
  var combined = combiner.obj([
    gulp.src(['./src/*.{wxss,scss}', './src/**/*.{wxss,scss}', './src/**/*.{wxss,sass}', '!./src/styles/**']),
    sass().on('error', sass.logError),
    autoprefixer([
      'iOS >= 8',
      'Android >= 4.1'
    ]),
    rename((path) => path.extname = '.wxss'),
    gulp.dest('./dist')
  ]);

  combined.on('error', handleError);
});

gulp.task('wxssPro', () => {
  var combined = combiner.obj([
    gulp.src(['./src/**/*.{wxss,sass}', '!./src/styles/**']),
    sass().on('error', sass.logError),
    autoprefixer([
      'iOS >= 8',
      'Android >= 4.1'
    ]),
    minifycss(),
    rename((path) => path.extname = '.wxss'),
    gulp.dest('./dist')
  ]);

  combined.on('error', handleError);
});

gulp.task('scripts', () => {
  return gulp.src(['./src/**/*.js', './src/**/**/*.js'])
    .pipe(plumber({}, true, function (err) {
      console.log('ERROR!!!!');
      console.log(err);
    }))
    .pipe(babel())
    .pipe(gulp.dest('./dist'))

})

gulp.task('scriptsPro', () => {
  return gulp.src('./src/**/*.js')
    .pipe(plumber({}, true, function (err) {
      console.log('ERROR!!!!');
      console.log(err);
    }))
    .pipe(babel())
    .pipe(uglify({
      compress: true,
    }))
    .pipe(gulp.dest('./dist'))
})

gulp.task('dev', ['clean'], () => {
  runSequence('json',
    'assets',
    'templates',
    // 'sass',
    'images',
    'wxss',
    'scripts',
    'watch');
});

gulp.task('build', [
  'jsonPro',
  'assets',
  'images',
  'templatesPro',
  'wxssPro',
  'scriptsPro'
]);

gulp.task('pro', ['clean'], () => {
  runSequence('build');
})複製代碼

運行

//編譯
gulp build
//開發
gulp dev複製代碼