mirror of https://gitee.com/antv-l7/antv-l7
33 lines
1.1 KiB
JavaScript
33 lines
1.1 KiB
JavaScript
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import { createFilter } from 'rollup-pluginutils';
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// borrow from https://github.com/uber/luma.gl/blob/master/dev-modules/babel-plugin-remove-glsl-comments/index.js#L4-L5
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const INLINE_COMMENT_REGEX = /\s*\/\/.*[\n\r]/g;
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const BLOCK_COMMENT_REGEX = /\s*\/\*(\*(?!\/)|[^*])*\*\//g;
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// 生产环境压缩 GLSL
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export default 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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if (minify) {
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code = code
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.trim() // strip whitespace at the start/end
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.replace(/\n+/g, '\n') // collapse multi line breaks
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// remove comments
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.replace(INLINE_COMMENT_REGEX, '\n')
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.replace(BLOCK_COMMENT_REGEX, '')
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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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