Regenerate website on update

backend/main.py

@@ -4,6 +4,8 @@ from werkzeug.security import generate_password_hash, check_password_hash
 import json
 import sqlite3
 import os
+import subprocess
+
 DB_PATH = os.path.join(os.path.dirname(__file__), 'links.db')
 
 app = Flask(__name__)
@@ -72,11 +74,16 @@ def update_links():
         cur.executemany('INSERT INTO links VALUES (?,?,?,?,?)', links)
         con.commit()
         con.close()
-        data = regen_JSON()
-        # TODO: Trigger a rebuild of the frontend
-        outfile = open('data.json', 'w')
-        print(data, file=outfile)
-        outfile.close()
+
+        frontend_path = os.environ.get('FRONTEND_PATH', None)
+        if frontend_path is None:
+            raise Exception('FRONTEND_PATH is not defined')
+
+        update_command = f"cd '{frontend_path}' && ./update.sh"
+        status = subprocess.call(update_command, shell=True)
+        
+        if status != 0:
+            raise Exception(f"`{update_command}` exited with an error ({status})")
 
     except Exception as e:
         cur.execute("rollback")

dev.sh

@@ -18,7 +18,7 @@ function dev_backend() {
   cd ./backend
   source venv/bin/activate
 
-  python main.py
+  FRONTEND_UPDATE_SCRIPT=$(realpath ./frontend/update.sh) python main.py
 }
 
 run_frontend_backend "dev_frontend" "dev_backend"

frontend/pages/index.tsx

@@ -3,7 +3,7 @@ import { GetStaticProps } from "next";
 import { Link, Links } from "components/Links";
 
 export const getStaticProps: GetStaticProps<Props> = async () => {
-  const res = await fetch(`${process.env.DEV_URL}/links`);
+  const res = await fetch(`http://${process.env.SERVER_URL}/links`);
   const links = await res.json();
 
   return {

frontend/update.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+npm run build

prod.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+
+set -e
+
+echo "Starting the python server..."
+
+pushd backend
+source venv/bin/activate
+
+FRONTEND_PATH=$(realpath ../frontend) python main.py &
+pid_backend=$!
+
+trap_ctrlc() {
+  kill $pid_backend
+}
+
+trap trap_ctrlc INT
+
+popd
+
+sleep 3
+
+echo "Building frontend..."
+
+pushd frontend
+npm run build
+popd
+
+echo "Done!"
+
+wait