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vanderb/inky.js

Created February 11, 2019 16:58
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  1. vanderb created this gist Feb 11, 2019.
    80 changes: 80 additions & 0 deletions inky.js
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,80 @@

    var inky = require('./i.js');

    var argv = process.argv.slice(2);

    var cheerio = require('cheerio');
    var path = require('path');
    var through = require('through2');
    var vfs = require('vinyl-fs');
    var Inky = require('inky/lib/inky');
    var fs = require('fs');
    var mkdirp = require('mkdirp');

    var juice = require('juice');

    var inky;

    function Inky(opts, cb) {
    var stream;
    opts = opts || {};
    opts.cheerio = Inky.mergeCheerioOpts(opts.cheerio);
    if (typeof inky === 'undefined') {
    inky = new Inky(opts);
    }

    // If the user passed in source files, create a stream
    if (opts.src) {
    stream = vfs
    .src(opts.src)
    .pipe(transform());

    if (opts.dest && typeof cb === 'function') {
    stream.on('finish', cb);
    }
    }
    // Otherwise, return the transform function
    else {
    return transform();
    }

    // This transform function takes in a Vinyl HTML file, converts the code from Inky to HTML, and returns the modified file.
    function transform() {
    return through.obj(function(file, enc, callback) {

    var convertedHtml = inky.releaseTheKraken(file.contents.toString(), opts.cheerio);

    var options = {
    preserveMediaQueries: true,
    webResources: {
    scripts: false,
    images: 500
    }
    };

    juice.juiceResources(convertedHtml, options, (err, html) => {
    convertedHtml = html;
    });

    file.contents = new Buffer.from(convertedHtml);

    // Write to disk manually if the user specified it
    if (opts.dest) {
    var outputPath = path.join(opts.dest, path.basename(file.path));
    mkdirp(opts.dest, function() {
    fs.writeFile(outputPath, convertedHtml, callback);
    });
    }
    else {
    callback(null, file);
    }
    });
    }
    }

    inky({
    src: argv[0],
    dest: argv[1]
    }, () => {
    console.log('Done parsing.');
    });