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gulpfile.js
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gulpfile.js
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const gulp = require('gulp');
const path = require('path');
// css
const postcss = require('gulp-postcss');
const cssnano = require('cssnano');
const autoprefixer = require('autoprefixer');
// js
const babel = require('gulp-babel');
const uglify = require('gulp-uglify');
const rename = require('gulp-rename');
// ejs
const htmlmin = require('gulp-htmlmin');
const brotli = require('gulp-brotli');
const gzip = require('gulp-gzip');
// CSS task
gulp.task('minify-css', function() {
return gulp.src(['./public/stylesheets/**/*.css', '!./public/stylesheets/**/*.min.css']) // Source CSS files and files to exlude
.pipe(postcss([
autoprefixer(), // Automatically add vendor prefixes
cssnano({
preset: ['default', {
discardComments: { removeAll: true }, // Remove all comments
reduceIdents: false, // Disable identifier reduction
zindex: false, // Disable z-index rebasing
normalizeWhitespace: true, // Minify whitespace
mergeLonghand: true // Merge longhand properties
}]
})
]))
.pipe(rename({ suffix: '.min' })) // Add .min to the filename
.pipe(gulp.dest('public/stylesheets')); // Destination folder for minified CSS
});
// JavaScript task
gulp.task('minify-js', function() {
return gulp.src(['./public/javascripts/**/*.js', '!./public/javascripts/**/*.min.js']) // Source folder for JavaScript files
.pipe(babel({
presets: ['@babel/preset-env'] // Transpile ES6+ code to ES5
}))
.pipe(uglify({
compress: {
drop_console: true,
drop_debugger: true,
passes: 3
},
output: {
comments: false,
beautify: false
},
toplevel: true,
})) // Minify the JS
.pipe(rename({ suffix: '.min' })) // Add .min to the filename
.pipe(gulp.dest('public/javascripts')); // Destination folder for minified JS
});
// minify EJS
gulp.task('minify-ejs', function() {
return gulp.src(['./views/**/*.ejs', '!./views/**/*-min.ejs']) // Source folder for EJS files
.pipe(htmlmin({
collapseWhitespace: true, // Remove extra white spaces
removeComments: true, // Remove comments
minifyJS: true, // Minify inline JavaScript
minifyCSS: true // Minify inline CSS
}))
.pipe(rename({ suffix: '-min' })) // Add .min to the filename
.pipe(gulp.dest('views')); // Destination folder for minified EJS files
});
// Brotli compression task
gulp.task('compress-br', () => {
return gulp.src(['./public/stylesheets/**/*.min.css', './public/javascripts/**/*.min.js', './views/**/*-min.ejs'])
.pipe(brotli.compress({
extension: 'br',
quality: 11
}))
.pipe(gulp.dest(function(file) {
// Define the base directories
const baseDirs = [
'public/stylesheets',
'public/javascripts',
'views'
];
// Determine the output path for the compressed file
const dest = baseDirs.find(baseDir => file.path.includes(baseDir));
return dest;
}));
});
// Gzip compression task
gulp.task('compress-gz', () => {
return gulp.src(['./public/stylesheets/**/*.min.css', './public/javascripts/**/*.min.js', './views/**/*-min.ejs'])
.pipe(gzip({
append: true,
gzipOptions: {
level: 9
}
}))
.pipe(gulp.dest(function(file) {
// Define the base directories
const baseDirs = [
'public/stylesheets',
'public/javascripts',
'views'
];
// Determine the output path for the compressed file
const dest = baseDirs.find(baseDir => file.path.includes(baseDir));
return dest;
}));
});
// Default task
gulp.task('minify', gulp.parallel('minify-css', 'minify-js', 'minify-ejs'));
gulp.task('compress', gulp.parallel('compress-br', 'compress-gz'));
gulp.task('default', gulp.series('minify', 'compress'));