Added support for verbose option that returns filenames of each inlined file alongside inlined html.

lib/index.js

@@ -2,28 +2,42 @@ var _ = require('lodash');
 var co = require('co');
 var cheerio = require('cheerio');
 var fs = require('mz/fs');
-var inlineCss = require('./inline-css');
+var inlineStyle = require('./inline-style');
 var inlineImg = require('./inline-img');
 var inlineLinkLess = require('./inline-link-less');
 
 var inline = co.wrap(function * (filename, options) {
 	options = _.defaults(options || {}, {
-		less: {}
+		less: {},
+		verbose: false
 	});
 	var html = yield fs.readFile(filename, 'utf8');
+	var files = [filename];
 
 	// Inline links
-	html = yield inlineLinkLess(html, filename, options.less);
+	var lessResult = yield inlineLinkLess(html, filename, options.less);
+	html = lessResult.html;
+	files.push(lessResult.files);
+
 	// TODO inline links: css
 
 	// TODO inline scripts
 	// browserify js? => scriptify
 
 	// Inline paths -> datauris
-	html = inlineCss(html, filename);
-	html = inlineImg(html, filename);
+	var styleResult = inlineStyle(html, filename); // Inline styles
+	html = styleResult.html;
+	files.push(styleResult.files);
 
-	return html;
+	var imgResult = inlineImg(html, filename); // Inline images
+	html = imgResult.html;
+	files.push(imgResult.files);
+
+	var result = {
+		html: html,
+		files: _.unique(_.flatten(files, true))
+	};
+	return (options.verbose ? result : result.html);
 });
 
 module.exports = inline;

lib/inline-css-url.js

@@ -4,18 +4,23 @@ var path = require('path');
 var rework = require('rework');
 var url = require('rework-plugin-url');
 
-var inline = function (css, filePath) {
-	var basePath = path.dirname(filePath);
+var inline = function (css, filename) {
+	var files = [];
+	var basePath = path.dirname(filename);
 	css = rework(css)
 		.use(url(function (url) {
 			if (isLocalPath(url)) {
 				url = path.resolve(basePath, url);
+				files.push(url);
 				url = datauri(url);
 			}
 			return url;
 		}))
 		.toString();
-	return css;
+	return {
+		css: css,
+		files: files
+	};
 };
 
 module.exports = inline;

lib/inline-img.js

@@ -3,19 +3,24 @@ var datauri = require('datauri');
 var isLocalPath = require('is-local-path');
 var path = require('path');
 
-var inline = function (html, filePath) {
-	var basedir = path.dirname(filePath);
+var inline = function (html, filename) {
+	var files = [];
+	var basedir = path.dirname(filename);
 	var $ = cheerio.load(html, {decodeEntities: false});
 	var images = $('img').filter(function (index, element) {
 		return isLocalPath($(element).attr('src'));
 	});
 	images.each(function (index, element) {
 		var src = $(element).attr('src');
-		var filePath = path.resolve(basedir, src);
-		src = datauri(filePath);
+		var filename = path.resolve(basedir, src);
+		files.push(filename);
+		src = datauri(filename);
 		$(element).attr('src', src);
 	});
-	return $.html();
+	return {
+		html: $.html(),
+		files: files
+	};
 };
 
 module.exports = inline;

lib/inline-link-less.js

@@ -7,13 +7,12 @@ var less = require('less');
 var path = require('path');
 var url = require('url');
 
-var render = co.wrap(function * (filepath, options) {
+var render = co.wrap(function * (filename, options) {
 	options = _.assign(options || {}, {
-		filename: filepath
+		filename: filename
 	});
-	var contents = yield fs.readFile(filepath, 'utf8');
-	var output = yield less.render(contents, options);
-	return output.css;
+	var contents = yield fs.readFile(filename, 'utf8');
+	return yield less.render(contents, options);
 });
 /**
  * @params html
@@ -21,8 +20,9 @@ var render = co.wrap(function * (filepath, options) {
  * @params options
  * 	LESS compiler options
  */
-var inline = co.wrap(function * (html, filepath, options) {
-	var basedir = path.dirname(filepath);
+var inline = co.wrap(function * (html, filename, options) {
+	var files = [];
+	var basedir = path.dirname(filename);
 	options = _.defaults(options || {}, {
 		relativeUrls: true
 	});
@@ -36,23 +36,29 @@ var inline = co.wrap(function * (html, filepath, options) {
 		});
 
 	// render stylesheets
-	var contents = [];
+	var outputs = [];
 	links.each(function (index, element) {
 		var href = $(element).attr('href');
-		var filepath = path.resolve(basedir, href);
-		contents.push(render(filepath, options));
+		var filename = path.resolve(basedir, href);
+		files.push(filename);
+		outputs.push(render(filename, options));
 	});
-	contents = yield contents;
-
-	// TODO for each content: convert css url path -> datauri
-	// can use inline-css-url
+	outputs = yield outputs;
 
 	// replace links
 	links.each(function (index, element) {
-		var style = $('<style>').html(contents[index]);
+		var style = $('<style>').html(outputs[index].css);
 		$(element).replaceWith(style);
 	});
 
-	return $.html();
+	// create list of imported files from all outputs, unique listing
+	files.push(_.map(outputs, function (output) {
+		return output.imports;
+	}));
+
+	return {
+		html: $.html(),
+		files: files
+	};
 });
 module.exports = inline;

lib/inline-style.js

@@ -11,15 +11,17 @@ var unwrap = function (value) {
 	var regexp = new RegExp('^' + prefix + '\\s*(.*)\\s+' + suffix + '$');
 	return value.replace(regexp, '$1');
 };
-var inline = function (html, filePath) {
+var inline = function (html, filename) {
+	var files = [];
 	var $ = cheerio.load(html, {decodeEntities: false});
 
 	// style elements
 	var styles = $('style');
 	styles.each(function (index, element) {
 		var css = $(element).html();
-		css = inlineUrl(css, filePath);
-		$(element).html(css);
+		result = inlineUrl(css, filename);
+		files.push(result.files);
+		$(element).html(result.css);
 	});
 
 	// style attributes
@@ -27,13 +29,17 @@ var inline = function (html, filePath) {
 	attributes.each(function (index, element) {
 		var css = $(element).attr('style');
 		css = wrap(css);
-		css = inlineUrl(css, filePath);
-		css = string(css).collapseWhitespace().toString();
+		result = inlineUrl(css, filename);
+		files.push(result.files);
+		css = string(result.css).collapseWhitespace().toString();
 		css = unwrap(css);
 		$(element).attr('style', css);
 	});
 
-	return $.html();
+	return {
+		html: $.html(),
+		files: files
+	};
 };
 
 module.exports = inline;

test/index.js

@@ -3,7 +3,7 @@ var path = require('path');
 var fs = require('fs');
 
 var filepath = path.resolve(__dirname, './fixtures/index.html');
-var options = {};
+var options = {verbose: true};
 
 inline(filepath, options)
 	.then(function (html) {