feat: #1000 ready to support client-side only

app/config/build.ts

@@ -1,16 +1,3 @@
-const COMMIT_ID: string = (() => {
-  try {
-    const childProcess = require("child_process");
-    return childProcess
-      .execSync('git log -1 --format="%at000" --date=unix')
-      .toString()
-      .trim();
-  } catch (e) {
-    console.error("[Build Config] No git or not from git repo.");
-    return "unknown";
-  }
-})();
-
 export const getBuildConfig = () => {
   if (typeof process === "undefined") {
     throw Error(
@@ -18,7 +5,23 @@ export const getBuildConfig = () => {
     );
   }
 
+  const COMMIT_ID: string = (() => {
+    try {
+      const childProcess = require("child_process");
+      return childProcess
+        .execSync('git log -1 --format="%at000" --date=unix')
+        .toString()
+        .trim();
+    } catch (e) {
+      console.error("[Build Config] No git or not from git repo.");
+      return "unknown";
+    }
+  })();
+
   return {
     commitId: COMMIT_ID,
+    buildMode: process.env.BUILD_MODE ?? "standalone",
   };
 };
+
+export type BuildConfig = ReturnType<typeof getBuildConfig>;

app/config/client.ts

@@ -0,0 +1,27 @@
+import { BuildConfig, getBuildConfig } from "./build";
+
+export function getClientConfig() {
+  if (typeof document !== "undefined") {
+    // client side
+    return JSON.parse(queryMeta("config")) as BuildConfig;
+  }
+
+  if (typeof process !== "undefined") {
+    // server side
+    return getBuildConfig();
+  }
+}
+
+function queryMeta(key: string, defaultValue?: string): string {
+  let ret: string;
+  if (document) {
+    const meta = document.head.querySelector(
+      `meta[name='${key}']`,
+    ) as HTMLMetaElement;
+    ret = meta?.content ?? "";
+  } else {
+    ret = defaultValue ?? "";
+  }
+
+  return ret;
+}

app/config/server.ts

@@ -10,6 +10,7 @@ declare global {
       VERCEL?: string;
       HIDE_USER_API_KEY?: string; // disable user's api key input
       DISABLE_GPT4?: string; // allow user to use gpt-4 or not
+      BUILD_MODE?: "standalone" | "export";
     }
   }
 }