feat: adds option --baseurl to use with html files or strings (#194)

cli/options.js

@@ -20,6 +20,7 @@ function options(args) {
     ],
     string: [ // options
       'encoding',
+      'baseurl',
     ],
     alias: {
       images: 'noimages', // legacy support
@@ -34,6 +35,7 @@ function options(args) {
       o: 'videos',
       m: 'inlinemin',
       H: 'header',
+      b: 'baseurl',
     },
   });
 

docs/usage.txt

@@ -20,8 +20,9 @@
 
   Options:
 
-    -H, --header LINE   custom header pass to the server (ala cURL headers)
-    -e, --encoding ENC  override encoding detection
+    -H, --header LINE     custom header pass to the server (ala cURL headers)
+    -e, --encoding ENC    override encoding detection
+    -b, --baseurl BASEURL use baseurl to fetch assets with relative paths
 
   Examples:
 

lib/index.js

@@ -58,6 +58,10 @@ function Inliner(source, options, callback) {
     this.url = options.url;
   }
 
+  if (options.baseurl) {
+    this.baseurl = options.baseurl;
+  }
+
   if (options.filename) {
     this.filename = options.filename;
   }
@@ -375,13 +379,18 @@ function resolve(from, to) {
     from = this.url;
   }
 
+  // add base url to relative urls
+  if (this.baseurl && from.indexOf('http') === -1) {
+    from = this.baseurl;
+  }
+
   // don't resolve data urls (already inlined)
   if (to.indexOf('data:') === 0) {
     return to;
   }
 
   // always strip querystrings from requests off a local file
-  if (this.isFile) {
+  if (this.isFile && !this.baseurl) {
     to = to.replace(/\??#.*$/, '');
   }
 

test/fixtures/baseurl.opts.json

@@ -0,0 +1,3 @@
+{
+  "baseurl": "https://avatars1.githubusercontent.com"
+}