From f3684e842a87145871ef3e8e6509ad862e24be0b Mon Sep 17 00:00:00 2001
From: Anders Kaseorg <anders@zulip.com>
Date: Thu, 1 Jun 2023 13:40:30 -0700
Subject: [PATCH] install: Check CPU and OS architecture.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
---
 scripts/lib/install | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/scripts/lib/install b/scripts/lib/install
index f9da9c342b..8efb1e4ee8 100755
--- a/scripts/lib/install
+++ b/scripts/lib/install
@@ -245,6 +245,20 @@ EOF
         ;;
 esac
 
+machine="$(uname -m)"
+if [ "$machine" != x86_64 ] && [ "$machine" != aarch64 ]; then
+    system_requirements_failure <<EOF
+Unsupported CPU architecture: $machine (expected x86_64 or aarch64).
+EOF
+fi
+
+dpkg_architecture="$(dpkg --print-architecture)"
+if [ "$dpkg_architecture" != amd64 ] && [ "$dpkg_architecture" != arm64 ]; then
+    system_requirements_failure <<EOF
+Unsupported OS architecture: $dpkg_architecture (expected amd64 or arm64).
+EOF
+fi
+
 has_universe() {
     apt-cache policy \
         | grep -q "^     release v=$os_version_id,o=Ubuntu,a=$os_version_codename,n=$os_version_codename,l=Ubuntu,c=universe"