mirror of https://gitee.com/antv-l7/antv-l7
98 lines
2.6 KiB
JavaScript
98 lines
2.6 KiB
JavaScript
import fs from 'fs';
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// import sourcemaps from 'rollup-plugin-sourcemaps';
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import buble from 'rollup-plugin-buble';
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import resolve from 'rollup-plugin-node-resolve';
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import commonjs from 'rollup-plugin-commonjs';
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import { createFilter } from 'rollup-pluginutils';
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import { terser } from 'rollup-plugin-terser';
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const { BUILD, MINIFY } = process.env;
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const minified = MINIFY === 'true';
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const production = BUILD === 'production';
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const outputFile = !production
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? 'build/L7.js'
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: minified
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? 'build/l7.js'
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: 'build/l7-unminified.js';
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const config = [
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{
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input: [ 'src/index.js', 'src/worker/worker.js' ],
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output: {
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dir: 'rollup/build/l7',
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format: 'amd',
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sourcemap: 'inline',
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indent: false,
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chunkFileNames: 'shared.js'
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},
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experimentalCodeSplitting: true,
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treeshake: production,
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plugins: [
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glsl(
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[ './src/geom/shader/*.glsl', './src/core/engine/picking/*.glsl' ],
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production
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),
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minified ? terser() : false,
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buble({
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transforms: { dangerousForOf: true },
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objectAssign: 'Object.assign'
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}),
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resolve({
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browser: true,
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preferBuiltins: false
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}),
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commonjs({
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// global keyword handling causes Webpack compatibility issues, so we disabled it:
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// https://github.com/mapbox/mapbox-gl-js/pull/6956
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ignoreGlobal: true
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})
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]
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},
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{
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input: 'rollup/l7.js',
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output: {
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name: 'L7',
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file: outputFile,
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format: 'umd',
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sourcemap: production ? true : 'inline',
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indent: false,
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intro: fs.readFileSync(
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require.resolve('./rollup/bundle_prelude.js'),
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'utf8'
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)
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},
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treeshake: false,
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plugins: [
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// Ingest the sourcemaps produced in the first step of the build.
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// This is the only reason we use Rollup for this second pass
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// sourcemaps()
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]
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}
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];
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export default config;
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function glsl(include, minify) {
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const filter = createFilter(include);
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return {
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name: 'glsl',
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transform(code, id) {
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if (!filter(id)) return;
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// barebones GLSL minification
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if (minify) {
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code = code
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.trim() // strip whitespace at the start/end
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.replace(/\s*\/\/[^\n]*\n/g, '\n') // strip double-slash comments
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.replace(/\n+/g, '\n') // collapse multi line breaks
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.replace(/\n\s+/g, '\n') // strip identation
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.replace(/\s?([+-\/*=,])\s?/g, '$1') // strip whitespace around operators
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.replace(/([;\(\),\{\}])\n(?=[^#])/g, '$1'); // strip more line breaks
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}
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return {
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code: `export default ${JSON.stringify(code)};`,
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map: { mappings: '' }
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};
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}
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};
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}
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