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140 lines
3.6 KiB
JavaScript
140 lines
3.6 KiB
JavaScript
"use strict";
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const babelOptions = require( "./babelOptions" );
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const ms = require( "pretty-ms" );
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const rollup = require( "rollup" );
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const babel = require( "rollup-plugin-babel" );
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const commonjs = require( "rollup-plugin-commonjs" );
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const json = require( "rollup-plugin-json" );
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const multiEntry = require( "rollup-plugin-multi-entry" );
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const resolve = require( "rollup-plugin-node-resolve" );
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const { terser } = require( "rollup-plugin-terser" );
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// pretty-path
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function pp( p ) {
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return ( Array.isArray( p ) ? p.join( ", " ) : p )
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.replace( process.cwd(), "" )
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.replace( /\\/g, "/" )
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.replace( /^\//, "" );
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}
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// based on https://github.com/rollup/rollup/blob/master/bin/src/logging.ts
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function handleError( err ) {
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let description = err.message || err;
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if ( err.name ) description = `${ err.name }: ${ description }`;
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const message = err.plugin ? `(${ err.plugin } plugin) ${ description }` : description;
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console.error( message.toString() );
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if ( err.url ) console.error( err.url );
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if ( err.loc )
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console.error( `${ err.loc.file || err.id } (${ err.loc.line }:${ err.loc.column })` );
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else if ( err.id )
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console.error( err.id );
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if ( err.frame ) console.error( err.frame );
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if ( err.stack ) console.error( err.stack );
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}
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module.exports = bundle => {
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const log = bundle.silent === true ? () => void 0 : console.info;
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const plugins = [
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resolve(),
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commonjs(),
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json( { namedExports: false } ),
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babel( babelOptions ),
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];
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if ( bundle.source.includes( "*" ) ) plugins.unshift( multiEntry() );
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if ( bundle.target.endsWith( ".min.js" ) )
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plugins.push( terser( { output: { comments: /MIT License/ } } ) );
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const config = {
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input: bundle.source,
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output: {
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banner: bundle.banner,
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file: bundle.target,
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format: bundle.format || "iife",
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interop: false,
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name: bundle.name,
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},
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plugins,
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onwarn( warning, warn ) {
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if ( warning.code === "CIRCULAR_DEPENDENCY" ) return void 0;
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if ( warning.code === "NAMESPACE_CONFLICT" ) return void 0;
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if ( warning.code === "EVAL" ) return void 0;
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if ( bundle.silent !== true ) warn( warning );
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},
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treeshake: {
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propertyReadSideEffects: true,
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},
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watch: {
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exclude: "node_modules/**",
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},
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};
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if ( bundle.watch !== true ) {
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log( `@pegjs/bundle > bundling ${ pp( config.input ) }` );
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return rollup.rollup( config )
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.then( bundle => bundle.write( config.output ) )
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.then( () => {
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log( `@pegjs/bundle > created ${ pp( bundle.target ) }` );
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} )
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.catch( handleError );
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}
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const watcher = rollup.watch( config );
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// https://rollupjs.org/guide/en#rollup-watch
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watcher.on( "event", event => {
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switch ( event.code ) {
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case "BUNDLE_START":
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log( `@pegjs/bundle > watching ${ pp( event.input ) }` );
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break;
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case "BUNDLE_END":
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log( `@pegjs/bundle > created ${ pp( event.output ) } in ${ ms( event.duration ) }` );
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break;
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case "ERROR":
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handleError( event.error );
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break;
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case "FATAL":
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console.error( "@pegjs/bundle > Fatel Error!" );
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handleError( event.error );
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break;
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}
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} );
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process.on( "exit", () => watcher.close() );
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return watcher;
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};
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