26 lines
772 B
JavaScript
26 lines
772 B
JavaScript
const fs = require('fs');
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const read_text = filename => new Promise(res => fs.readFile(filename, (err, data) => (err ? res(null) : res(data.toString()))));
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module.exports = ({ extensions = ['.html', '.svelte'] } = {}) => ({
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transform(code, id) {
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const extension = extensions.find(extension => id.endsWith(extension));
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if (extension) {
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const base_id = id.slice(0, -extension.length);
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const js_id = base_id + '.js';
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const css_id = base_id + '.css';
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return Promise.all([js_id, css_id].map(read_text)).then(([js, css]) => {
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if (js) {
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this.addWatchFile(js_id);
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code += `\n<script>\n${js}\n</script>\n`;
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}
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if (css) {
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this.addWatchFile(css_id);
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code += `\n<style>\n${css}\n</style>\n`;
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}
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return code;
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});
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}
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},
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});
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