From b44a79eebaf1664512ef5ff4e3246b3a6a416ff4 Mon Sep 17 00:00:00 2001
From: Jacky Zhao <j.zhao2k19@gmail.com>
Date: Tue, 19 Dec 2023 19:40:59 +0000
Subject: [PATCH] fix: wikilinks should allow external links (closes #639)

---
 quartz/plugins/transformers/frontmatter.ts |   21 ++++++++++-----------
 1 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/quartz/plugins/transformers/frontmatter.ts b/quartz/plugins/transformers/frontmatter.ts
index 6498a07..d50217b 100644
--- a/quartz/plugins/transformers/frontmatter.ts
+++ b/quartz/plugins/transformers/frontmatter.ts
@@ -4,6 +4,7 @@
 import yaml from "js-yaml"
 import toml from "toml"
 import { slugTag } from "../../util/path"
+import { QuartzPluginData } from "../vfile"
 
 export interface Options {
   delims: string | string[]
@@ -28,7 +29,7 @@
         [remarkFrontmatter, ["yaml", "toml"]],
         () => {
           return (_, file) => {
-            const { data } = matter(file.value, {
+            const { data } = matter(Buffer.from(file.value), {
               ...opts,
               engines: {
                 yaml: (s) => yaml.load(s, { schema: yaml.JSON_SCHEMA }) as object,
@@ -37,16 +38,18 @@
             })
 
             // tag is an alias for tags
-            if (data.tag !== null) {
-              data.tags = data.tag.toString()
+            if (data.tag) {
+              data.tags = data.tag
             }
 
             // coerce title to string
-            if (data.title !== null) {
+            if (data.title) {
               data.title = data.title.toString()
+            } else if (data.title === null || data.title === undefined) {
+              data.title = file.stem ?? "Untitled"
             }
 
-            if (data.tags !== null && !Array.isArray(data.tags)) {
+            if (data.tags && !Array.isArray(data.tags)) {
               data.tags = data.tags
                 .toString()
                 .split(oneLineTagDelim)
@@ -54,14 +57,10 @@
             }
 
             // slug them all!!
-            data.tags = [...new Set(data.tags?.map((tag: string) => slugTag(tag)))] ?? []
+            data.tags = [...new Set(data.tags?.map((tag: string) => slugTag(tag)))]
 
             // fill in frontmatter
-            file.data.frontmatter = {
-              title: file.stem ?? "Untitled",
-              tags: [],
-              ...data,
-            }
+            file.data.frontmatter = data as QuartzPluginData["frontmatter"]
           }
         },
       ]

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