Factor filter predicate into helpers.ts, add @lib alias dir

src/lib/helpers.ts

@@ -0,0 +1,5 @@
+import { type CollectionEntry } from "astro:content";
+
+export function shouldShowPost(post: CollectionEntry<"blog">) {
+    return import.meta.env.DEV || !post.data.draft;
+}

src/pages/index.astro

@@ -1,8 +1,9 @@
 ---
 import { getCollection } from "astro:content";
+import { shouldShowPost } from "@lib/helpers";
 import General from "@layouts/General.astro";
 import Summary from "@components/Summary.astro";
-const posts = (await getCollection("blog")).filter(entry => import.meta.env.DEV || !entry.data.draft);
+const posts = (await getCollection("blog")).filter(shouldShowPost);
 posts.sort((a, b) => new Date(b.data.pubDate).getTime() - new Date(a.data.pubDate).getTime());
 ---
 

src/pages/posts/[...slug]/index.astro

@@ -1,11 +1,12 @@
 ---
 import Post from "@layouts/Post.astro";
+import { shouldShowPost } from "@lib/helpers";
 import { getCollection } from "astro:content";
 
 export async function getStaticPaths() {
   const posts = await getCollection("blog");
   return posts
-    .filter((entry) => import.meta.env.DEV || !entry.data.draft)
+    .filter(shouldShowPost)
     .map((entry) => {
       return {
         params: { slug: entry.slug },

src/pages/tags/[...slug].astro

@@ -1,12 +1,13 @@
 ---
 import General from "@layouts/General.astro";
+import { shouldShowPost } from "@lib/helpers";
 import { getCollection } from "astro:content";
 
 export async function getStaticPaths() {
   const blogEntries = await getCollection("blog");
   const tags = new Set(
     blogEntries
-      .filter((entry) => import.meta.env.DEV || !entry.data.draft)
+      .filter(shouldShowPost)
       .map((entry) => entry.data.tags)
       .flat(),
   );

tsconfig.json

@@ -3,6 +3,9 @@
   "compilerOptions": {
     "baseUrl": ".",
     "paths": {
+      "@lib/*": [
+        "src/lib/*"
+      ],
       "@styles/*": [
         "src/styles/*"
       ],