From 727b9b5d72464d26427a8bdf3ab06e522e67b21c Mon Sep 17 00:00:00 2001
From: Matt Vogel <mainmoniker@googlemail.com>
Date: Fri, 17 Nov 2023 13:23:39 -0500
Subject: [PATCH] feat: add class `alias` to aliases (#585)

---
 quartz/plugins/transformers/links.ts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/quartz/plugins/transformers/links.ts b/quartz/plugins/transformers/links.ts
index 8d16136f3..eec473c10 100644
--- a/quartz/plugins/transformers/links.ts
+++ b/quartz/plugins/transformers/links.ts
@@ -54,6 +54,16 @@ export const CrawlLinks: QuartzTransformerPlugin<Partial<Options> | undefined> =
                 node.properties.className ??= []
                 node.properties.className.push(isAbsoluteUrl(dest) ? "external" : "internal")
 
+                // Check if the link has alias text
+                if (
+                  node.children.length === 1 &&
+                  node.children[0].type === "text" &&
+                  node.children[0].value !== dest
+                ) {
+                  // Add the 'alias' class if the text content is not the same as the href
+                  node.properties.className.push("alias")
+                }
+
                 if (opts.openLinksInNewTab) {
                   node.properties.target = "_blank"
                 }