因此,我尝试使用 Gulp V4 编译 pug (jade)、javascript 和 sass 文件,并在这些文件中的任何一个发生更改时使用 browserSync 重新加载浏览器。那里有很多指南,但是无论我以哪种方式编写代码,它似乎都没有正确地完成任务顺序。我gulp.series
用来设置任务顺序,但 browserSync 不想玩。
这是我的 Gulp 文件的打印件:
var gulp = require('gulp'),
... etc.
var paths = {
sass: ['src/scss/**/*.scss'],
js: ['src/js/**/*.js'],
pug: ['src/**/*.pug']
};
// Shared Tasks:
//*------------------------------------*/
gulp.task('clean', function(done){
del(['dist/assets/**/*.css', 'dist/assets/**/*.map', 'dist/assets/**/*.js']);
done();
});
// App Specific Tasks:
//*------------------------------------*/
// Sass
gulp.task('build-sass', function(){
gulp.src(paths.sass)
return sass(paths.sass, {
style: 'expanded'
})
.on('error', sass.logError)
.pipe(prefix('last 2 version', '> 1%', 'ie 8', 'ie 9'))
.pipe(sourcemaps.write())
.pipe(gulp.dest('dist/assets/css'))
.pipe(cleanCSS({ advanced: false, keepSpecialComments: 0 }))
.pipe(rename({suffix: '.min'}))
.pipe(gulp.dest('dist/assets/css'));
});
// JS
gulp.task('build-js', function(done){
gulp.src(paths.js)
.pipe(concat('all.js'))
.pipe(gulp.dest('dist/assets/js'))
.pipe(rename({suffix: '.min'}))
.pipe(uglify())
.pipe(gulp.dest('dist/assets/js'))
done();
// Pug
gulp.task('build-pug', function buildHTML(done){
gulp.src(['src/**/*.pug'], {
base: 'src'
})
.pipe(pug())
.pipe(gulp.dest('./dist/'))
done();
});
// Service Tasks:
//*------------------------------------*/
// Delete the compiled views dir.
gulp.task('remove', function(done){
del(['dist/views/**/']);
done();
});
// Serve the site locally and watch for file changes
gulp.task('serve', function(done){
browserSync.init({
server: {
baseDir: './dist/',
notify: false,
open: false
}
});
// Watch & Reload Pug Files
gulp.watch([paths.pug], gulp.series('build-pug')).on('change', browserSync.reload);
// Watch & Reload Sass Files
gulp.watch([paths.sass], gulp.series('build-sass')).on('change', browserSync.reload);
});
gulp.task('default', gulp.series('clean', 'build-sass', 'build-js', 'build-pug', 'remove', 'serve', function(done){
done();
}));
启动 gulp 时,终端控制台日志会输出以下内容:
$ gulp
[13:09:33] Using gulpfile ~/Dropbox Aaron/Dropbox (Personal)/01_Me/01_Dev/01_My Work/*Template/gulpfile.js
[13:09:33] Starting 'default'...
[13:09:33] Starting 'clean'...
[13:09:33] Finished 'clean' after 2.64 ms
[13:09:33] Starting 'build-sass'...
[13:09:33] Finished 'build-sass' after 443 ms
[13:09:33] Starting 'build-js'...
[13:09:33] Finished 'build-js' after 4.42 ms
[13:09:33] Starting 'build-pug'...
[13:09:33] Finished 'build-pug' after 3.15 ms
[13:09:33] Starting 'remove'...
[13:09:33] Finished 'remove' after 656 μs
[13:09:33] Starting 'serve'...
[BS] Access URLs:
-------------------------------------
Local: http://localhost:3000
External: http://10.130.91.51:3000
-------------------------------------
UI: http://localhost:3001
UI External: http://10.130.91.51:3001
-------------------------------------
[BS] Serving files from: ./dist/
当我更改监视文件中的文件时:
[BS] File changed: src/scss/4_elements/_elements.page.scss
[13:12:33] Starting 'build-sass'...
[13:12:34] write ./style.css
[13:12:34] Finished 'build-sass' after 366 ms
所以在我看来,在这种情况下发生了什么,文件正在更改,browserSync 重新加载页面,然后“build-sass”开始。这是错误的方式。我显然想构建 sass,然后重新加载页面。我必须为浏览器保存 2 次才能刷新我想要的代码。
我使用的一些代码直接来自 browserSync 文档:
https://www.browsersync.io/docs/gulp#gulp-reload
这似乎不起作用。