From cdd0be2aa8c6e0a6d97779f3db3072952b54bf13 Mon Sep 17 00:00:00 2001
From: Jiangnan Li <lijn101@nenu.edu.cn>
Date: Sun, 08 Jun 2025 09:23:01 +0000
Subject: [PATCH] feat(giscus): expose language option for Comments component (#2012)

---
 quartz/plugins/transformers/frontmatter.ts |   10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)

diff --git a/quartz/plugins/transformers/frontmatter.ts b/quartz/plugins/transformers/frontmatter.ts
index c04c52a..1103900 100644
--- a/quartz/plugins/transformers/frontmatter.ts
+++ b/quartz/plugins/transformers/frontmatter.ts
@@ -101,7 +101,11 @@
             const socialImage = coalesceAliases(data, ["socialImage", "image", "cover"])
 
             const created = coalesceAliases(data, ["created", "date"])
-            if (created) data.created = created
+            if (created) {
+              data.created = created
+              data.modified ||= created // if modified is not set, use created
+            }
+
             const modified = coalesceAliases(data, [
               "modified",
               "lastmod",
@@ -114,6 +118,10 @@
 
             if (socialImage) data.socialImage = socialImage
 
+            // Remove duplicate slugs
+            const uniqueSlugs = [...new Set(allSlugs)]
+            allSlugs.splice(0, allSlugs.length, ...uniqueSlugs)
+
             // fill in frontmatter
             file.data.frontmatter = data as QuartzPluginData["frontmatter"]
           }

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