Frontmatter getters comments

src/frontmatter/categories.js

@@ -1,5 +1,6 @@
 const settings = require('../settings');
 
+// get array of categories for post, filtered as specified in settings
 module.exports = (post) => {
 	if (!post.data.category) {
 		return [];

src/frontmatter/coverImage.js

@@ -1,3 +1,5 @@
+// get cover image filename, previously set on post.meta
+// this one is unique as it relies on logic executed by the parser
 module.exports = (post) => {
   return post.meta.coverImage;
 };

src/frontmatter/date.js

@@ -2,6 +2,7 @@ const luxon = require('luxon');
 
 const settings = require('../settings');
 
+// get post date, optionally formatted as specified in settings
 module.exports = (post) => {
 	const dateTime = luxon.DateTime.fromRFC2822(post.data.pubDate[0], { zone: 'utc' });
 

src/frontmatter/tags.js

@@ -1,3 +1,4 @@
+// get array of tags for post
 module.exports = (post) => {
 	if (!post.data.category) {
 		return [];

src/frontmatter/title.js

@@ -1,3 +1,4 @@
+// get simple post title
 module.exports = (post) => {
   return post.data.title[0];
 };