jquery/build/tasks/minify.js
Timmy Willison 2cf659189e Release: migrate release process to release-it
*Authors*
- Checking and updating authors has been migrated
  to a custom script in the repo

*Changelog*
- changelogplease is no longer maintained
- generate changelog in markdown for GitHub releases
- generate changelog in HTML for blog posts
- generate contributors list in HTML for blog posts

*dist*
- clone dist repo, copy files, and commit/push
- commit tag with dist files on main branch;
  remove dist files from main branch after release

*cdn*
- clone cdn repo, copy files, and commit/push
- create versioned and unversioned copies in cdn/
- generate md5 sums and archives for Google and MSFT

*build*
- implement reproducible builds and verify release builds
  * uses the last modified date for the latest commit
  * See https://reproducible-builds.org/
- the verify workflow also ensures all files were
  properly published to the CDN and npm

*docs*
- the new release workflow is documented at build/release/README.md

*verify*
- use the last modified date of the commit before the tag
- use versioned filenames when checking map files on the CDN
- skip factory and package.json files when verifying CDN

*misc*
- now that we don't need the jquery-release script and
  now that we no longer need to build on Node 10, we can
  use ESM in all files in the build folder
- limit certain workflows to the main repo (not forks)
- version has been set to the previously released version 3.7.1,
  as release-it expects
- release-it added the `preReleaseBase` option and we
  now always set it to `1` in the npm script. This is
  a noop for stable releases.
- include post-release script to be run manually after a release,
  with further steps that should be verified manually

Ref jquery/jquery-release#114
Closes gh-5522
2024-07-29 15:25:14 -04:00

84 lines
2.0 KiB
JavaScript

import fs from "node:fs/promises";
import path from "node:path";
import UglifyJS from "uglify-js";
import processForDist from "./dist.js";
import getTimestamp from "./lib/getTimestamp.js";
const rjs = /\.js$/;
export default async function minify( { dir, filename } ) {
const filepath = path.join( dir, filename );
const contents = await fs.readFile( filepath, "utf8" );
const version = /jQuery JavaScript Library ([^\n]+)/.exec( contents )[ 1 ];
const banner = `/*! jQuery ${ version }` +
" | (c) OpenJS Foundation and other contributors" +
" | jquery.org/license */";
const minFilename = filename.replace( rjs, ".min.js" );
const mapFilename = filename.replace( rjs, ".min.map" );
const { code, error, map: incompleteMap, warning } = UglifyJS.minify(
contents,
{
compress: {
hoist_funs: false,
loops: false,
// Support: IE <11
// typeofs transformation is unsafe for IE9-10
// See https://github.com/mishoo/UglifyJS2/issues/2198
typeofs: false
},
output: {
ascii_only: true,
// Support: Android 4.0 only
// UglifyJS 3 breaks Android 4.0 if this option is not enabled.
// This is in lieu of setting ie for all of mangle, compress, and output
ie8: true,
preamble: banner
},
sourceMap: {
filename: minFilename
}
}
);
if ( error ) {
throw new Error( error );
}
if ( warning ) {
console.warn( warning );
}
// The map's `sources` property is set to an array index.
// Fix it by setting it to the correct filename.
const map = JSON.stringify( {
...JSON.parse( incompleteMap ),
file: minFilename,
sources: [ filename ]
} );
await Promise.all( [
fs.writeFile(
path.join( dir, minFilename ),
code
),
fs.writeFile(
path.join( dir, mapFilename ),
map
)
] );
// Always process files for dist
// Doing it here avoids extra file reads
processForDist( contents, filename );
processForDist( code, minFilename );
processForDist( map, mapFilename );
console.log( `[${ getTimestamp() }] ${ minFilename } ${ version } with ${
mapFilename
} created.` );
}