lib/output/modifiers/fetchRemoteImages.js
function fetchRemoteImages(rootFolder, currentFile, $) {
    var currentDirectory = path.dirname(currentFile);

    return editHTMLElement($, 'img', function($img) {
        var src = $img.attr('src');
        var extension = path.extname(src);

        if (!LocationUtils.isExternal(src)) {
            return;
        }

        // We avoid generating twice the same PNG
        var hash = crc.crc32(src).toString(16);
        var fileName = hash + extension;
        var filePath = path.join(rootFolder, fileName);

        return fs.assertFile(filePath, function() {
            return fs.download(src, filePath);
        })
        .then(function() {
            // Convert to relative
            src = LocationUtils.relative(currentDirectory, fileName);

            $img.replaceWith('<img src="' + src + '" />');
        });
    });
}
function fetchRemoteImages(rootFolder, currentFile, $) {
    var currentDirectory = path.dirname(currentFile);

    return editHTMLElement($, 'img', function($img) {
        var src = $img.attr('src');
        var extension = path.extname(src);

        if (!LocationUtils.isExternal(src)) {
            return;
        }

        // We avoid generating twice the same PNG
        var hash = crc.crc32(src).toString(16);
        var fileName = hash + extension;
        var filePath = path.join(rootFolder, fileName);

        return fs.assertFile(filePath, function() {
            return fs.download(src, filePath);
        })
        .then(function() {
            // Convert to relative
            src = LocationUtils.relative(currentDirectory, fileName);

            $img.replaceWith('<img src="' + src + '" />');
        });
    });
}
function fetchRemoteImages ( rootFolder , currentFile , $ ) { var currentDirectory = path . dirname ( currentFile ) ; return editHTMLElement ( $ , 'img' , function ( $img ) { var src = $img . attr ( 'src' ) ; var extension = path . extname ( src ) ; if ( ! LocationUtils . isExternal ( src ) ) { return ; } // We avoid generating twice the same PNG var hash = crc . crc32 ( src ) . toString ( 16 ) ; var fileName = hash + extension ; var filePath = path . join ( rootFolder , fileName ) ; return fs . assertFile ( filePath , function ( ) { return fs . download ( src , filePath ) ; } ) . then ( function ( ) { // Convert to relative src = LocationUtils . relative ( currentDirectory , fileName ) ; $img . replaceWith ( '<img src="' + src + '" />' ) ; } ) ; } ) ; }
Fetch all remote images

@param {String} rootFolder
@param {String} currentFile
@param {HTMLDom} $
@return {Promise}
Fetch all remote images