From e70d0acfa416ec1acbd0aa89f879f9937853cb95 Mon Sep 17 00:00:00 2001
From: HiDeoo <494699+HiDeoo@users.noreply.github.com>
Date: Tue, 4 Jun 2024 10:43:39 +0200
Subject: [PATCH] fix: fixes an issue preventing to read Obsidian frontmatter
 when it included a `null` value

---
 fixtures/basics/Supported properties.md      |  1 +
 packages/starlight-obsidian/libs/obsidian.ts | 12 +++++++-----
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/fixtures/basics/Supported properties.md b/fixtures/basics/Supported properties.md
index aed7e8c..313c9c5 100644
--- a/fixtures/basics/Supported properties.md	
+++ b/fixtures/basics/Supported properties.md	
@@ -1,6 +1,7 @@
 ---
 description: This is a custom description
 permalink: custom-slug
+aliases:
 ---
 
 Test
diff --git a/packages/starlight-obsidian/libs/obsidian.ts b/packages/starlight-obsidian/libs/obsidian.ts
index 1d19b00..54307fa 100644
--- a/packages/starlight-obsidian/libs/obsidian.ts
+++ b/packages/starlight-obsidian/libs/obsidian.ts
@@ -23,16 +23,18 @@ const obsidianFrontmatterSchema = z.object({
   aliases: z
     .array(z.string())
     .optional()
+    .nullable()
     .transform((aliases) => aliases?.map((alias) => slug(alias))),
-  cover: z.string().optional(),
-  description: z.string().optional(),
-  image: z.string().optional(),
-  permalink: z.string().optional(),
+  cover: z.string().optional().nullable(),
+  description: z.string().optional().nullable(),
+  image: z.string().optional().nullable(),
+  permalink: z.string().optional().nullable(),
   publish: z
     .union([z.boolean(), z.literal('true'), z.literal('false')])
     .optional()
+    .nullable()
     .transform((publish) => publish === undefined || publish === 'true' || publish === true),
-  tags: z.array(z.string()).optional(),
+  tags: z.array(z.string()).optional().nullable(),
 })
 
 const imageFileFormats = new Set(['.avif', '.bmp', '.gif', '.jpeg', '.jpg', '.png', '.svg', '.webp'])