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73 lines
1.9 KiB
73 lines
1.9 KiB
6 years ago
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'use strict';
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const fs = require('fs');
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const path = require('path');
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const fileType = require('file-type');
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const globby = require('globby');
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const makeDir = require('make-dir');
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const pify = require('pify');
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const pPipe = require('p-pipe');
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const replaceExt = require('replace-ext');
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const fsP = pify(fs);
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const handleFile = (input, output, opts) => fsP.readFile(input).then(data => {
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const dest = output ? path.join(output, path.basename(input)) : null;
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if (opts.plugins && !Array.isArray(opts.plugins)) {
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throw new TypeError('The plugins option should be an `Array`');
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}
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const pipe = opts.plugins.length > 0 ? pPipe(opts.plugins)(data) : Promise.resolve(data);
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return pipe
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.then(buf => {
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buf = buf.length < data.length ? buf : data;
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const ret = {
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data: buf,
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path: (fileType(buf) && fileType(buf).ext === 'webp') ? replaceExt(dest, '.webp') : dest
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};
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if (!dest) {
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return ret;
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}
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return makeDir(path.dirname(ret.path))
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.then(() => fsP.writeFile(ret.path, ret.data))
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.then(() => ret);
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})
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.catch(err => {
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err.message = `Error in file: ${input}\n\n${err.message}`;
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throw err;
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});
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});
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module.exports = (input, output, opts) => {
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if (!Array.isArray(input)) {
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return Promise.reject(new TypeError('Expected an array'));
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}
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if (typeof output === 'object') {
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opts = output;
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output = null;
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}
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opts = Object.assign({plugins: []}, opts);
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opts.plugins = opts.use || opts.plugins;
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return globby(input, {nodir: true}).then(paths => Promise.all(paths.map(x => handleFile(x, output, opts))));
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};
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module.exports.buffer = (input, opts) => {
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if (!Buffer.isBuffer(input)) {
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return Promise.reject(new TypeError('Expected a buffer'));
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}
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opts = Object.assign({plugins: []}, opts);
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opts.plugins = opts.use || opts.plugins;
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const pipe = opts.plugins.length > 0 ? pPipe(opts.plugins)(input) : Promise.resolve(input);
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return pipe.then(buf => buf.length < input.length ? buf : input);
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};
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