Fixed YAML index file parser failing on duplicate keys.

src/methods/self.js

@@ -1,7 +1,7 @@
 'use strict';
 
 function curateComments(comments) {
-    return comments.map(comment => ({
+    return comments.map((comment) => ({
         id: comment.id,
         url: `https://reddit.com${comment.permalink}`,
         author: comment.author.name,
@@ -31,7 +31,7 @@ async function getFullPost(postId, reddit) {
         .fetch();
 }
 
-async function self(host, originalPost, reddit) {
+async function self(host, originalPost, { reddit }) {
     const post = await getFullPost(originalPost.id, reddit) || originalPost;
     const curatedComments = curateComments(post.comments);
 

src/save/save.js

@@ -41,7 +41,12 @@ async function writeBufferToFile(target, buffer, item) {
 
 async function save(requestedFilepath, bufferOrBuffers, item) {
     const pathElements = getPathElements(requestedFilepath);
-    const buffers = [].concat(bufferOrBuffers); // allow for single stream argument
+    const buffers = [].concat(bufferOrBuffers).filter(Boolean); // allow for single stream argument
+
+    if (buffers.length === 0) {
+        logger.warn(`Received undefined buffer (${item.url})`);
+        return null;
+    }
 
     await fs.ensureDir(pathElements.dir);
 

src/sources/getIndex.js

@@ -13,9 +13,9 @@ async function getIndex(user) {
     try {
         const indexFile = await fs.readFile(indexFilePath, 'utf8');
 
-        return yaml.safeLoad(indexFile);
+        return yaml.safeLoad(indexFile, { json: true }); // allow duplicate keys
     } catch (error) {
-        logger.info(`No index file found for '${user.name}' at '${indexFilePath}'`);
+        logger.info(`No index file found for '${user.name}' at '${indexFilePath}': ${error.message}`);
 
         return { profile: { image: null, description: null }, posts: [] };
     }