Upload and set featured image while pushing to Ghost

NOTE: mediumexporter also needs to be updated to download the
feature image in the first place!

functions.js

@@ -137,6 +137,8 @@ const pushToGhost = async (postSlug) => {
   let reImage = new RegExp('^!\\[(.*)\\]\\((\\S+?)\\)(.*)')
   let reTitle = new RegExp('^#\ .*')
 
+  // Note down uploaded images
+  var uploadedImages = []
 
   for await (const line of readInterface) {
     // Line to output
@@ -177,26 +179,25 @@ const pushToGhost = async (postSlug) => {
     outStream.write(newLine + '\n')
   }
 
-    postMetaFile = path.join(postFolder, 'metadata.json')
-    let postMeta = JSON.parse(fs.readFileSync(postMetaFile))
+  // Upload feature_image, if required
+  var featuredImagePath
+  if (!!postMeta.featuredImage) {
+    var imageName = postMeta.featuredImage.replace('*', '')
 
-    // calculate users
-    let users = []
-    postMeta.authors.forEach((user) => {
-      users.push({slug: user.username})
-    })
+    // if the image is listed in postMeta.images, it would have
+    // already been uploaded
+    if (uploadedImages.indexOf(imageName) != -1) {
+      console.log(`Skipping feature image ${imageName}: already listed for upload`)
+    } else {
+      var imagePath = path.join(postFolder, 'images', imageName)
 
-    ghostAdmin.posts.add({
-      title: postMeta.title,
-      custom_excerpt: postMeta.subtitle || null,
-      tags: postMeta.tags,
-      authors: users,
-      html: markdown.toHTML(fs.readFileSync(postOutput, mode='utf-8'))
-    }, {source: 'html'})
-    .then((res) => {
-      // Check if user was added
-      if (res.primary_author.id == 1) {
-        console.warn(`WARNING: The admin editor, "${res.primary_author.name}", is set as author for this post. If this is incorrect, there was some problem matching usernames. Please check and set it manually.`)
+      // We can only upload if the file exists!
+      if (!fs.existsSync(imagePath)) {
+        console.warn(`Skipping feature image "${imageName}": file not found`)
+      } else {
+        console.log(`Uploading feature image: ${imageName}`)
+        uploadDav(davPath, imagePath)
+        featuredImagePath = uploadedPath + '/' + imageName
       }
     }
   }