fix: unable to create buffer from empty readme (#39)

* fix: unable to create buffer from empty readme

* fix: narrow `remarkPlugins` type

Author: huynl-96

playground/pages/readme.vue

@@ -6,13 +6,19 @@ const qRepo = ref('supabase-module')
 <template>
   <div>
     <GithubReadme v-slot="{ readme, refresh }" :query="{ owner: qOwner, repo: qRepo }">
-      Fetch readme from query:
+      Fetch README from query:
       <input v-model="qOwner" style="margin-left: 1rem;" type="text"> /
       <input v-model="qRepo" type="text">
       <button style="margin-left: 1rem;" @click="refresh">
         Search
       </button>
-      <ContentRenderer :value="readme" />
+      <ContentRenderer :value="readme">
+        <template #empty>
+          <div style="margin: 1rem 0">
+            README not found
+          </div>
+        </template>
+      </ContentRenderer>
     </GithubReadme>
   </div>
 </template>

src/module.ts

@@ -83,8 +83,11 @@ export default defineNuxtModule<ModuleOptions>({
     if (options.remarkPlugin) {
       // @ts-ignore
       nuxt.hook('content:context', (context) => {
-        context.markdown.remarkPlugins = context.markdown.remarkPlugins || {}
-        context.markdown.remarkPlugins['remark-github'] = { repository: `${options.owner}/${options.repo}` }
+        context.markdown.remarkPlugins ??= {}
+
+        if (!Array.isArray(context.markdown.remarkPlugins)) {
+          context.markdown.remarkPlugins['remark-github'] = { repository: `${options.owner}/${options.repo}` }
+        }
       })
     }
 

src/runtime/server/api/readme.ts

@@ -33,7 +33,7 @@ export default handler(
     const readme = await fetchReadme(githubConfig) as GithubRepositoryReadme
 
     // Readme readable content
-    const content = Buffer.from(readme.content, 'base64').toString()
+    const content = Buffer.from(readme.content ?? '', 'base64').toString()
 
     // Parse contents with @nuxt/content if enabled
     if (moduleConfig.parseContents) {