34 lines
958 B
JavaScript
34 lines
958 B
JavaScript
const less = require('less');
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const { readFileSync } = require('fs');
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const path = require('path');
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const postcss = require('postcss');
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const NpmImportPlugin = require('less-plugin-npm-import');
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const postcssConfig = require('./postcssConfig');
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function transformLess(lessFile, config = {}) {
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const { cwd = process.cwd() } = config;
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const resolvedLessFile = path.resolve(cwd, lessFile);
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let data = readFileSync(resolvedLessFile, 'utf-8');
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data = data.replace(/^\uFEFF/, '');
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// Do less compile
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const lessOpts = {
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paths: [path.dirname(resolvedLessFile)],
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filename: resolvedLessFile,
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plugins: [new NpmImportPlugin({ prefix: '~' })],
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javascriptEnabled: true,
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};
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return less
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.render(data, lessOpts)
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.then(result => {
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const source = result.css;
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return postcss(postcssConfig.plugins).process(source, { from: undefined });
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})
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.then(r => {
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return r.css;
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});
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}
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module.exports = transformLess;
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