Added support for HTML img tags

packages/gatsby-remark-copy-linked-files/package.json

@@ -4,6 +4,7 @@
   "version": "1.0.0-beta.1",
   "author": "Kyle Mathews <mathews.kyle@gmail.com>",
   "dependencies": {
+    "cheerio": "^1.0.0-rc.1",
     "fs-extra": "^3.0.1",
     "is-relative-url": "^2.0.0",
     "lodash": "^4.17.4",

packages/gatsby-remark-copy-linked-files/src/index.js

@@ -3,6 +3,7 @@ const isRelativeUrl = require(`is-relative-url`)
 const fsExtra = require(`fs-extra`)
 const path = require(`path`)
 const _ = require(`lodash`)
+const $ = require('cheerio');
 
 module.exports = ({ files, markdownNode, markdownAST, getNode }) => {
   // Copy linked files to the public directory and modify the AST to point to
@@ -46,7 +47,7 @@ module.exports = ({ files, markdownNode, markdownAST, getNode }) => {
 
   // Also copy gifs since Sharp can't process them as well as svgs since we
   // exclude them from the image processing pipeline in
-  // gatsby-remark-responsive-image
+  // gatsby-remark-responsive-image. This will only work for markdown img tags
   visit(markdownAST, `image`, image => {
     const imagePath = path.join(getNode(markdownNode.parent).dir, image.url)
     const imageNode = _.find(files, file => {
@@ -62,4 +63,28 @@ module.exports = ({ files, markdownNode, markdownAST, getNode }) => {
       visitor(image)
     }
   })
+
+  // Same as the above except it only works for html img tags
+  visit(markdownAST, `html`, node => {
+    if(node.value.startsWith('<img')){
+      let image = Object.assign(node, $.parseHTML(node.value)[0].attribs);
+      image.url = image.src;
+      image.type = 'image';
+      image.position =  node.position;
+
+      const imagePath = path.join(getNode(markdownNode.parent).dir, image.url)
+      const imageNode = _.find(files, file => {
+        if (file && file.absolutePath) {
+          return file.absolutePath === imagePath
+        }
+        return false
+      })
+      if (
+        imageNode &&
+        (imageNode.extension === `gif` || imageNode.extension === `svg`)
+      ) {
+        visitor(image)
+      }
+    }
+  })
 }