Add support for hidden pages

gatsby-browser.js

@@ -1,2 +1,2 @@
 import './src/styles/global.css';
-import "prismjs/themes/prism-solarizedlight.css";
+import 'prismjs/themes/prism-solarizedlight.css';

gatsby-config.js

@@ -105,5 +105,8 @@ module.exports = {
         ]
       }
     },
+    {
+      resolve: 'gatsby-plugin-mdx-frontmatter'
+    },
   ],
 };

gatsby-node.js

@@ -14,6 +14,7 @@ exports.createPages = async ({ actions, graphql, reporter }) => {
           node {
             frontmatter {
               path
+              hidden
             }
             id
           }
@@ -27,7 +28,7 @@ exports.createPages = async ({ actions, graphql, reporter }) => {
     return;
   }
 
-  const posts = result.data.allMdx.edges;
+  const posts = result.data.allMdx.edges.filter(({ node }) => !node.frontmatter.hidden);
   const postsPerPage = 10;
   const numPages = Math.ceil(posts.length / postsPerPage);
   const rootPath = "/notes";
@@ -46,7 +47,9 @@ exports.createPages = async ({ actions, graphql, reporter }) => {
     })
   });
 
-  posts.forEach(({ node }) => {
+  // Must decouple to ensure hidden pages are still rendered, just excluded from
+  // notes mapping
+  result.data.allMdx.edges.forEach(({ node }) => {
     createPage({
       path: `${rootPath}/${node.frontmatter.path}`,
       component: noteTemplate,
@@ -56,3 +59,14 @@ exports.createPages = async ({ actions, graphql, reporter }) => {
     });
   });
 }
+exports.createSchemaCustomization = ({ actions: { createTypes } }) => {
+  createTypes(`
+    type Mdx implements Node {
+      frontmatter: MdxFrontmatter
+    }
+
+    type MdxFrontmatter {
+      hidden: Boolean
+    }
+  `);
+};

package.json

@@ -18,6 +18,7 @@
     "@mdx-js/react": "^1.6.18",
     "gatsby": "^2.24.63",
     "gatsby-plugin-mdx": "^1.2.41",
+    "gatsby-plugin-mdx-frontmatter": "^0.0.2",
     "gatsby-plugin-react-helmet": "^3.3.11",
     "gatsby-plugin-typography": "^2.5.11",
     "gatsby-remark-prismjs": "^3.5.13",

src/notes/2020-01-01-lorem-ipsum.mdx

@@ -2,16 +2,18 @@
 path: "lorem-ipsum"
 date: 2020-01-01
 title: "Lorem Ipsum"
+hidden: true
 ---
 
-# h1 Heading 8-)
+Hey! You've found the secret page that I use to test out style changes.
+
+# h1 Heading
 ## h2 Heading
 ### h3 Heading
 #### h4 Heading
 ##### h5 Heading
 ###### h6 Heading
 
-
 ## Horizontal Rules
 
 ___
@@ -103,7 +105,7 @@ Sample text here...
 
 Syntax highlighting
 
-``` js
+```js
 var foo = function (bar) {
   return bar++;
 };

src/pages/index.mdx

@@ -12,14 +12,13 @@ import Navbar from "../components/navbar";
 
 -----
 
-Hey there. I'm just an software engineer with interests in distributed systems,
+Hey there. I'm just an software engineer with varying degrees of interest in
-safety and correctness, cybersecurity, homelabbing, homebrewing (both kinds!),
+distributed systems, safety and correctness, cybersecurity, homelabbing,
-and keyboards. My favorite language is Rust, and my most disliked is
+homebrewing (both kinds!), and keyboards. My favorite language is Rust, and my
-Python—I've been bitten by its… "features" too many times,
+most disliked is Python.
-unfortunately.
 
 #### Contact Info
 
 The best way to contact me for any reason is by email. My address is [hi (at)
 this website], and I'll generally respond in a few days. Feel free to send an
-another email if I don't respond in a week or so.
+another email if I don't respond in a week or so.

src/templates/notes.tsx

@@ -1,6 +1,11 @@
+/*
+ * This file handles rendering the pages that let users select and find notes.
+ * See note.tsx for rendering a single note.
+ */
+
 import React from "react";
 import Navbar from "../components/navbar";
-import { graphql, PageProps } from "gatsby";
+import { graphql } from "gatsby";
 import style from "./notes.module.css";
 
 export default ({ data, pageContext }) => {
@@ -14,6 +19,8 @@ export default ({ data, pageContext }) => {
     prevPageLink = <a href={rootPath + '/' + (currentPage - 1)} className={style.prevPageLink}>&lt;&lt;</a>;
   }
 
+  const shouldDisplayNav = numPages !== 1;
+
   return (
     <>
       <Navbar />
@@ -31,11 +38,19 @@ export default ({ data, pageContext }) => {
           </article>
         )
       })}
-      <p className={style.paginationNav}>
+      {shouldDisplayNav &&
-        {prevPageLink}
+        <p className={style.paginationNav}>
-        {currentPage}
+          {prevPageLink}
-        {currentPage !== numPages && <a href={rootPath + '/' + (currentPage + 1)} className={style.nextPageLink}>&gt;&gt;</a>}
+          {currentPage}
-      </p>
+          {currentPage !== numPages &&
+            <a
+              href={rootPath + '/' + (currentPage + 1)}
+              className={style.nextPageLink}>
+              &gt;&gt;
+            </a>
+          }
+        </p>
+      }
     </>
   )
 }
@@ -44,7 +59,7 @@ export const query = graphql`
   query IndexQuery($skip: Int!, $limit: Int!) {
     allMdx(
       sort: { order: DESC, fields: [frontmatter___date] }
-      filter: { fileAbsolutePath: { glob: "**/src/notes/*" } }
+      filter: { fileAbsolutePath: { glob: "**/src/notes/*" }, frontmatter: {hidden: {ne: true}} }
       limit: $limit
       skip: $skip
     ) {

yarn.lock

@@ -5863,6 +5863,11 @@ gatsby-plugin-eslint@^2.0.8:
   resolved "https://registry.yarnpkg.com/gatsby-plugin-eslint/-/gatsby-plugin-eslint-2.0.8.tgz#1ff7f546a427d274dc2de3932ba29822aae330c3"
   integrity sha512-vAMy37povmQJNg6ZxY78fkWR3pKwG8MNMhO3u+4vXj2MYT5avhFvHPJTAb126ZCuygf30gAWlpwbV50zP894Jw==
 
+gatsby-plugin-mdx-frontmatter@^0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/gatsby-plugin-mdx-frontmatter/-/gatsby-plugin-mdx-frontmatter-0.0.2.tgz#5db9d83bc356b2fcd3b360314f79bbf6a2bbb57a"
+  integrity sha512-nGDVNP7gLRnwyRP3rvt27R327GpeY3Ve3OVjiCmrdgkg6ApWCDMlY1XFfuY4iZDJwZXiuhmqrRZUPY5rV5xPJQ==
+
 gatsby-plugin-mdx@^1.2.41:
   version "1.2.41"
   resolved "https://registry.yarnpkg.com/gatsby-plugin-mdx/-/gatsby-plugin-mdx-1.2.41.tgz#56b110050170f6c466d915a39a0094596989c8ef"