feat: 新增分类

src/pages/categories/index.astro

@@ -0,0 +1,35 @@
+---
+import { getAllPosts, getUniqueCategoriesWithCount } from "@/data/post";
+import PageLayout from "@/layouts/Base.astro";
+
+const allPosts = await getAllPosts();
+const allCategories = getUniqueCategoriesWithCount(allPosts);
+
+const meta = {
+	description: "A list of all the categories I've written about in my posts",
+	title: "All Categories",
+};
+---
+
+<PageLayout meta={meta}>
+	<h1 class="title mb-6">Categories</h1>
+	<ul class="space-y-4">
+		{
+			allCategories.map(([item, val]) => (
+				<li class="flex items-center gap-x-2">
+					<a
+						class="cactus-link inline-block"
+						data-astro-prefetch
+						href={`/categories/${item}/`}
+						title={`View posts with the category: ${item}`}
+					>
+						&#35;{item}
+					</a>
+					<span class="inline-block">
+						- {val} Post{val > 1 && "s"}
+					</span>
+				</li>
+			))
+		}
+	</ul>
+</PageLayout>