From f7bd2137ecbb81f3ed50ae9ccaaee27ae855c11a Mon Sep 17 00:00:00 2001
From: Sean Missingham <smissingham@users.noreply.github.com>
Date: Mon, 01 Jul 2024 03:58:34 +0000
Subject: [PATCH] Permit Manual (and Scripted) Trigger of CI Job (#1251)

---
 quartz/plugins/transformers/description.ts |   71 ++++++++++++++++++++++++-----------
 1 files changed, 49 insertions(+), 22 deletions(-)

diff --git a/quartz/plugins/transformers/description.ts b/quartz/plugins/transformers/description.ts
index 3505b19..5900745 100644
--- a/quartz/plugins/transformers/description.ts
+++ b/quartz/plugins/transformers/description.ts
@@ -1,18 +1,22 @@
-import { Root as HTMLRoot } from 'hast'
+import { Root as HTMLRoot } from "hast"
 import { toString } from "hast-util-to-string"
 import { QuartzTransformerPlugin } from "../types"
+import { escapeHTML } from "../../util/escape"
 
 export interface Options {
   descriptionLength: number
+  replaceExternalLinks: boolean
 }
 
 const defaultOptions: Options = {
-  descriptionLength: 150
+  descriptionLength: 150,
+  replaceExternalLinks: true,
 }
 
-const escapeHTML = (unsafe: string) => {
-  return unsafe.replaceAll('&', '&amp;').replaceAll('<', '&lt;').replaceAll('>', '&gt;').replaceAll('"', '&quot;').replaceAll("'", '&#039;');
-}
+const urlRegex = new RegExp(
+  /(https?:\/\/)?(?<domain>([\da-z\.-]+)\.([a-z\.]{2,6})(:\d+)?)(?<path>[\/\w\.-]*)(\?[\/\w\.=&;-]*)?/,
+  "g",
+)
 
 export const Description: QuartzTransformerPlugin<Partial<Options> | undefined> = (userOpts) => {
   const opts = { ...defaultOptions, ...userOpts }
@@ -22,34 +26,57 @@
       return [
         () => {
           return async (tree: HTMLRoot, file) => {
-            const frontMatterDescription = file.data.frontmatter?.description
-            const text = escapeHTML(toString(tree))
+            let frontMatterDescription = file.data.frontmatter?.description
+            let text = escapeHTML(toString(tree))
 
-            const desc = frontMatterDescription ?? text
-            const sentences = desc.replace(/\s+/g, ' ').split('.')
-            let finalDesc = ""
-            let sentenceIdx = 0
-            const len = opts.descriptionLength
-            while (finalDesc.length < len) {
-              const sentence = sentences[sentenceIdx]
-              if (!sentence) break
-              finalDesc += sentence + '.'
-              sentenceIdx++
+            if (opts.replaceExternalLinks) {
+              frontMatterDescription = frontMatterDescription?.replace(
+                urlRegex,
+                "$<domain>" + "$<path>",
+              )
+              text = text.replace(urlRegex, "$<domain>" + "$<path>")
             }
 
-            file.data.description = finalDesc
+            const desc = frontMatterDescription ?? text
+            const sentences = desc.replace(/\s+/g, " ").split(/\.\s/)
+            const finalDesc: string[] = []
+            const len = opts.descriptionLength
+            let sentenceIdx = 0
+            let currentDescriptionLength = 0
+
+            if (sentences[0] !== undefined && sentences[0].length >= len) {
+              const firstSentence = sentences[0].split(" ")
+              while (currentDescriptionLength < len) {
+                const sentence = firstSentence[sentenceIdx]
+                if (!sentence) break
+                finalDesc.push(sentence)
+                currentDescriptionLength += sentence.length
+                sentenceIdx++
+              }
+              finalDesc.push("...")
+            } else {
+              while (currentDescriptionLength < len) {
+                const sentence = sentences[sentenceIdx]
+                if (!sentence) break
+                const currentSentence = sentence.endsWith(".") ? sentence : sentence + "."
+                finalDesc.push(currentSentence)
+                currentDescriptionLength += currentSentence.length
+                sentenceIdx++
+              }
+            }
+
+            file.data.description = finalDesc.join(" ")
             file.data.text = text
           }
-        }
+        },
       ]
-    }
+    },
   }
 }
 
-declare module 'vfile' {
+declare module "vfile" {
   interface DataMap {
     description: string
     text: string
   }
 }
-

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