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/**
* Minify JavaScript using SWC.
*/
"use strict";
module.exports = ( grunt ) => {
const swc = require( "@swc/core" );
grunt.registerMultiTask(
"minify",
"Minify JavaScript using SWC",
async function() {
const done = this.async();
const options = this.options();
const sourceMapFilename = options.sourceMap && options.sourceMap.filename;
const sourceMapOverrides = options.sourceMap && options.sourceMap.overrides || {};
await Promise.all( this.files.map( async( { src, dest } ) => {
if ( src.length !== 1 ) {
grunt.fatal( "The minify task requires a single source per destination" );
}
const { code, map: incompleteMap } = await swc.minify(
grunt.file.read( src[ 0 ] ),
{
...options.swc,
inlineSourcesContent: false,
sourceMap: sourceMapFilename ?
{
filename: sourceMapFilename
} :
false
}
);
// Can't seem to get SWC to not use CRLF on Windows, so replace them with LF.
grunt.file.write( dest, code.replace( /\r\n/g, "\n" ) );
if ( sourceMapFilename ) {
// Apply map overrides if needed. See the task config description
// for more details.
const mapObject = {
...JSON.parse( incompleteMap ),
...sourceMapOverrides
};
const map = JSON.stringify( mapObject );
grunt.file.write( sourceMapFilename, map );
}
} ) );
done();
}
);
};
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