feat: Add warning when installing without running server

See: #369 (comment)

hrms/hooks.py

@@ -84,7 +84,7 @@
 # Installation
 # ------------
 
-# before_install = "hrms.install.before_install"
+before_install = "hrms.install.before_install"
 after_install = "hrms.install.after_install"
 after_migrate = "hrms.setup.update_select_perm_after_install"
 

hrms/install.py

@@ -3,6 +3,22 @@
 from hrms.setup import after_install as setup
 
 
+def before_install():
+	from frappe.utils.connections import check_connection
+
+	service_status = check_connection(redis_services=["redis_cache"])
+	are_services_running = all(service_status.values())
+
+	if not are_services_running:
+		for service in service_status:
+			if not service_status.get(service, True):
+				click.secho(f"Service {service} is not running.", fg="red")
+
+		click.secho("Please ensure that the server is running before installing HRMS.", fg="red")
+		click.secho("See: https://github.com/frappe/hrms/issues/369#issuecomment-1463632514", fg="red")
+		raise click.Abort()
+
+
 def after_install():
 	try:
 		print("Setting up Frappe HR...")