Fetch data from separate GitHub Pages instead of bundling

- Add NEXT_PUBLIC_DATA_URL env var pointing to entdb-data Pages
- Refactor env.ts: dataURL, withBase (cleaner naming)
- Remove data download step from build workflow

src/app/os/bin/page.tsx

@@ -15,7 +15,7 @@ import { CopyButton } from "@/components/copy-button";
 import { DownloadButton } from "@/components/download-button";
 import { DiffViewer } from "@/components/diff-viewer";
 
-import { addBasePath } from "@/lib/env";
+import { withBase } from "@/lib/env";
 import { createEngine } from "@/lib/engine";
 import type { PathHistory } from "@/lib/engine/types";
 import { normalizePlist } from "@/lib/plist";
@@ -291,7 +291,7 @@ export default function BinaryDetail() {
                           ],
                           properties: {
                             className: ["text-blue-600", "dark:text-blue-300", "hover:underline"],
-                            href: addBasePath(
+                            href: withBase(
                               `/os/find?key=${encodeURIComponent(
                                 node.value as string,
                               )}&os=${encodeURIComponent(os!)}`,

src/app/os/layout.tsx

@@ -12,7 +12,7 @@ import {
 } from "@/components/ui/breadcrumb";
 import { VersionSwitcher } from "@/components/version-switcher";
 
-import { addBasePath } from "@/lib/env";
+import { withBase } from "@/lib/env";
 import { useEffect } from "react";
 import { usePathname } from "next/navigation";
 
@@ -46,7 +46,7 @@ export default function OSDetailLayout({
           <Breadcrumb>
             <BreadcrumbList>
               <BreadcrumbItem>
-                <BreadcrumbLink href={addBasePath("/")}>Home</BreadcrumbLink>
+                <BreadcrumbLink href={withBase("/")}>Home</BreadcrumbLink>
               </BreadcrumbItem>
               <BreadcrumbSeparator />
               <BreadcrumbItem>

src/app/os/page.tsx

@@ -1,6 +1,6 @@
 "use client";
 
-import { addBasePath } from "@/lib/env";
+import { withBase } from "@/lib/env";
 import { useSearchParams, redirect } from "next/navigation";
 
 export default function OSDetail() {
@@ -11,5 +11,5 @@ export default function OSDetail() {
     return <div className="p-8">Invalid OS</div>;
   }
 
-  redirect(addBasePath(`/os/keys?os=${os}`));
+  redirect(withBase(`/os/keys?os=${os}`));
 }

src/components/oslist.tsx

@@ -4,7 +4,7 @@ import Link from "next/link";
 import { useEffect, useState, useMemo } from "react";
 
 import { Group, OS } from "@/lib/types";
-import { addBasePath } from "@/lib/env";
+import { withBase, dataURL } from "@/lib/env";
 import { Skeleton } from "./ui/skeleton";
 
 function responseOK(r: Response) {
@@ -108,14 +108,14 @@ export default function OSList() {
   useEffect(() => {
     setLoading(true);
 
-    fetch(addBasePath("/data/groups.json"))
+    fetch(`${dataURL}/groups.json`)
       .then(responseOK)
       .then((r) => r.json() as Promise<string[]>)
       .then(async (groupList: string[]) =>
         Promise.all(
           groupList.map(async (group) => {
             const response = await fetch(
-              addBasePath(`/data/${group}/list.json`),
+              `${dataURL}/${group}/list.json`,
             ).then(responseOK);
 
             const data = await response.json();

src/components/version-switcher.tsx

@@ -12,7 +12,7 @@ import { Input } from "@/components/ui/input";
 import { ChevronDown, Check } from "lucide-react";
 
 import type { OS } from "@/lib/types";
-import { addBasePath, basePath } from "@/lib/env";
+import { withBase, basePath, dataURL } from "@/lib/env";
 
 function compareVersion(a: string, b: string) {
   const l1 = a.split(".").map(Number);
@@ -42,7 +42,7 @@ export function VersionSwitcher({ currentOs }: { currentOs: string }) {
   useEffect(() => {
     if (!group) return;
 
-    fetch(addBasePath(`/data/${group}/list.json`))
+    fetch(`${dataURL}/${group}/list.json`)
       .then((r) => r.json())
       .then((list: OS[]) => {
         list.sort((a, b) => compareVersion(a.version, b.version));

src/lib/engine/kv.ts

@@ -1,6 +1,6 @@
 import type { Engine, PathHistory } from "./types";
 import type { OS } from "@/lib/types";
-import { dataBaseURL } from "@/lib/env";
+import { dataURL } from "@/lib/env";
 import { fetchText, fetchLines } from "@/lib/client";
 
 interface KVRecord {
@@ -55,7 +55,7 @@ export class KVEngine implements Engine {
   #baseURL: string;
 
   constructor(group: string) {
-    this.#baseURL = `${dataBaseURL()}/${group}`;
+    this.#baseURL = `${dataURL}/${group}`;
   }
 
   async listOS(): Promise<OS[]> {

src/lib/env.ts

@@ -1,11 +1,5 @@
 export const basePath = process.env.NEXT_PUBLIC_BASE_PATH || "";
+export const dataURL = process.env.NEXT_PUBLIC_DATA_URL || `${basePath}/data`;
 
-export function addBasePath(path: string) {
-  let prefixed = path;
-  if (!prefixed.startsWith("/")) prefixed = `/${prefixed}`;
-  return basePath + prefixed;
-}
-
-export function dataBaseURL(): string {
-  return addBasePath("/data");
-}
+export const withBase = (path: string) =>
+  basePath + (path.startsWith("/") ? path : `/${path}`);