111 lines
2.8 KiB
JavaScript
111 lines
2.8 KiB
JavaScript
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"use strict";
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exports.__esModule = true;
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exports.default = svgoPlugin;
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var _svgo = _interopRequireDefault(require("svgo"));
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var _cosmiconfig = require("cosmiconfig");
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var _config = require("./config");
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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/* eslint-disable no-underscore-dangle */
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const explorer = (0, _cosmiconfig.cosmiconfigSync)('svgo', {
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searchPlaces: ['package.json', '.svgorc', '.svgorc.js', '.svgorc.json', '.svgorc.yaml', '.svgorc.yml', 'svgo.config.js', '.svgo.yml'],
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transform: result => result && result.config,
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cache: true
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});
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function encodeSVGDatauri(str, type) {
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let prefix = 'data:image/svg+xml'; // base64
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if (!type || type === 'base64') {
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prefix += ';base64,';
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if (Buffer.from) {
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str = prefix + Buffer.from(str).toString('base64');
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} else {
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// eslint-disable-next-line
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str = prefix + new Buffer(str).toString('base64');
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} // URI encoded
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} else if (type === 'enc') {
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str = `${prefix},${encodeURIComponent(str)}`; // unencoded
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} else if (type === 'unenc') {
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str = `${prefix},${str}`;
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}
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return str;
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} // See https://github.com/svg/svgo/blob/master/lib/svgo.js#L24
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// _optimizeOnce is synchronous internally
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function optimizeSync(svgstr, info) {
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const {
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config
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} = this;
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if (config.error) {
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throw config.error;
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}
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const maxPassCount = config.multipass ? 10 : 1;
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let counter = 0;
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let prevResultSize = Number.POSITIVE_INFINITY;
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let result;
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const optimizeOnceCallback = svgjs => {
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if (svgjs.error) {
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throw svgjs.error;
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} // eslint-disable-next-line no-plusplus
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if (++counter < maxPassCount && svgjs.data.length < prevResultSize) {
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prevResultSize = svgjs.data.length;
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this._optimizeOnce(svgjs.data, info, optimizeOnceCallback);
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} else {
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if (config.datauri) {
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svgjs.data = encodeSVGDatauri(svgjs.data, config.datauri);
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}
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if (info.path) {
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svgjs.path = info.path;
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}
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result = svgjs;
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}
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};
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this._optimizeOnce(svgstr, info, optimizeOnceCallback);
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return result;
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}
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function createSvgo(config, rcConfig) {
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const baseSvgoConfig = (0, _config.getBaseSvgoConfig)(config);
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const mergedConfig = (0, _config.mergeSvgoConfig)(baseSvgoConfig, rcConfig, config.svgoConfig);
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return new _svgo.default(mergedConfig);
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}
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function getInfo(state) {
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return state.filePath ? {
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input: 'file',
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path: state.filePath
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} : {
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input: 'string'
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};
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}
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function svgoPlugin(code, config, state) {
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if (!config.svgo) return code;
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const filePath = (0, _config.getFilePath)(state);
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const svgoRcConfig = config.runtimeConfig ? explorer.search(filePath) : {};
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const svgo = createSvgo(config, svgoRcConfig);
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const {
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data
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} = optimizeSync.call(svgo, code, getInfo(state));
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return data;
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}
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