From 233e5ba4ed0413f9946a85ade9ca1e55fcfb7095 Mon Sep 17 00:00:00 2001
From: Tuan Cao <caomanhtuanbsb@gmail.com>
Date: Fri, 29 Apr 2022 15:35:10 +0700
Subject: [PATCH] Remove troublesome FrontMatter pluggin (temporarily) Cached
 graph-data, which result in hugely improved build performance and probably
 browsing experience as well

---
 lib/transformer.js |  2 +-
 lib/utils.js       | 69 ++++++++++++++++++++++++++--------------------
 2 files changed, 40 insertions(+), 31 deletions(-)

diff --git a/lib/transformer.js b/lib/transformer.js
index c180570..a689a3c 100644
--- a/lib/transformer.js
+++ b/lib/transformer.js
@@ -65,7 +65,7 @@ export const Transformer = {
             .use(obsidianImage)
             .use(highlight)        
             .use(externalLinks, {target: "_blank", rel: ['noopener']})
-            .use(frontmatter, ['yaml', 'toml'])
+            // .use(frontmatter, ['yaml', 'toml'])
             .use(wikiLinkPlugin, {
                 permalinks: null,
                 pageResolver: function (pageName) {
diff --git a/lib/utils.js b/lib/utils.js
index c812ba9..231d649 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -3,6 +3,8 @@ import {Transformer} from "./transformer";
 import unified from "unified";
 import markdown from "remark-parse";
 import {toString} from 'mdast-util-to-string'
+import path from "path";
+import fs from "fs";
 
 const dirTree = require("directory-tree");
 
@@ -46,7 +48,7 @@ export function getSinglePost(slug) {
     //console.log("hrmlcontents and backlinks")
     return {
         id: slug,
-        ...currentFileFrontMatter,
+        // ...currentFileFrontMatter,
         data: htmlContent,
     }
 
@@ -100,41 +102,48 @@ export function toSlug(filePath) {
 }
 
 
+
 export function constructGraphData() {
 
-    const filePaths = getAllMarkdownFiles();
-    const edges = []
-    const nodes = []
+    const filepath = path.join(process.cwd(), "graph-data.json");
+    if (Node.isFile(filepath)) {
+        const data = fs.readFileSync(filepath);
+        return JSON.parse(String(data))
+    } else {
+        const filePaths = getAllMarkdownFiles();
+        const edges = []
+        const nodes = []
+        filePaths
+            .forEach(aFilePath => {
+                    // const {currentFilePath} = getFileNames(filename)
+                    const aNode = {
+                        title: Transformer.parseFileNameFromPath(aFilePath),
+                        slug: toSlug(aFilePath),
+                        shortSummary: getShortSummary(toSlug(aFilePath))
+                    }
+                    nodes.push(aNode)
 
-    filePaths
-        .forEach(aFilePath => {
-            // const {currentFilePath} = getFileNames(filename)
-            const aNode = {
-                title: Transformer.parseFileNameFromPath(aFilePath),
-                slug: toSlug(aFilePath),
-                shortSummary: getShortSummary(toSlug(aFilePath))
-            }
-            nodes.push(aNode)
+                    // console.log("Constructing graph for node: " + aFilePath )
+                    const internalLinks = Transformer.getInternalLinks(aFilePath)
+                    internalLinks.forEach(aLink => {
 
-            // console.log("Constructing graph for node: " + aFilePath )
-            const internalLinks = Transformer.getInternalLinks(aFilePath)
-            internalLinks.forEach(aLink => {
+                        if (aLink.slug === null || aLink.slug.length === 0) return
 
-                if (aLink.slug === null || aLink.slug.length === 0) return
-
-                const anEdge = {
-                    source: toSlug(aFilePath),
-                    target: aLink.slug,
+                        const anEdge = {
+                            source: toSlug(aFilePath),
+                            target: aLink.slug,
+                        }
+                        edges.push(anEdge)
+                        // console.log("Source: " + anEdge.source)
+                        // console.log("Target: " + anEdge.target)
+                    })
+                    // console.log("==============Constructing graph" )
                 }
-                edges.push(anEdge)
-                // console.log("Source: " + anEdge.source)
-                // console.log("Target: " + anEdge.target)
-            })
-            // console.log("==============Constructing graph" )
-        }
-    )
-
-    return {nodes, edges};
+            )
+        const data = {nodes, edges};
+        fs.writeFileSync(filepath, JSON.stringify(data), "utf-8");
+        return data;
+    }
 }