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import path from 'path';

import cheerio from 'cheerio';

import { minify } from 'html-minifier';

/**

* Build an object in the format: `{ <name>: <contents> }`.

* @param {string[]} svgFiles - A list of filenames.

* @param {Function} getSvg - A function that returns the contents of an SVG file given a filename.

* @returns {Object}

function buildIconsObject(svgFiles, getSvg) {

return svgFiles

.map(svgFile => {

const name = path.basename(svgFile, '.svg');

const svg = getSvg(svgFile);

const contents = getSvgContents(svg);

return { name, contents };

})

.reduce((icons, icon) => {

icons[icon.name] = icon.contents;

return icons;

}, {});

}

/**

* Get contents between opening and closing `<svg>` tags.

* @param {string} svg

* @returns {string}

function getSvgContents(svg) {

const $ = cheerio.load(svg);

return minify($('svg').html(), { collapseWhitespace: true });

}

export default buildIconsObject;