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#!/usr/bin/env node
const {minify: minifyJs} = require('terser')
const {minify: minifyHtml} = require('html-minifier-terser')
const CleanCSS = require('clean-css');
const parseArgs = require('minimist')
const {promises: fs} = require('fs')
const argv = process.argv.slice(2)
if (!argv.length) {
console.log(`usage: ${process.argv[1]} --type js|css|html filename`)
process.exit(1)
}
async function read() {
const chunks = []
for await (const chunk of process.stdin)
chunks.push(chunk)
return Buffer.concat(chunks).toString('utf-8')
}
const args = parseArgs(argv, {
string: ['type'],
})
;(async () => {
if (!['js', 'css', 'html'].includes(args.type))
throw new Error('invalid type')
const content = await read()
switch (args.type) {
case 'html':
console.log(await minifyHtml(content, {
collapseBooleanAttributes: true,
collapseInlineTagWhitespace: true,
collapseWhitespace: true,
conservativeCollapse: true,
html5: true,
includeAutoGeneratedTags: true,
keepClosingSlash: false,
minifyCSS: true,
minifyJS: true,
minifyURLs: false,
preserveLineBreaks: true,
removeComments: true,
removeAttributeQuotes: false,
sortAttributes: false,
sortClassName: false,
useShortDoctype: true,
}))
break
case 'css':
console.log(new CleanCSS({level:2}).minify(content).styles)
break
case 'js':
console.log((await minifyJs(content, {
ecma: 5
})).code)
break
}
})()
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