fes.js/packages/plugin-icon/src/optimizeSvg.ts

import { readFileSync, statSync } from 'node:fs';
import { basename, extname } from 'node:path';
import { optimize } from 'svgo';

const presetDefault = [
    {
        name: 'preset-default',
    },
    'cleanupListOfValues',
    {
        name: 'removeAttrs',
        params: {
            attrs: '(class)',
        },
    },
];

export default function optimizeSvg(files) {
    const optimizedSvgData: {
        fileName: string;
        data: string;
    }[] = [];
    for (const filePath of files) {
        if (statSync(filePath).isFile() && extname(filePath) === '.svg') {
            const data = readFileSync(filePath, 'utf-8');
            const svgData = optimize(data, { path: filePath, plugins: presetDefault });

            optimizedSvgData.push({
                fileName: basename(filePath),
                data: svgData.data,
            });
        }
    }
    return Promise.all(optimizedSvgData);
}