qemu version change (#2862)

* qemu version change

* allow multiple versions

* codefactor

* typo

* oops

.ci/env/apt.sh

@@ -63,10 +63,31 @@ function install_qemu_emulation_apt {
 }
 
 function install_qemu_emulation_deb {
-    qemu_deb=qemu-user-static_9.0.1+ds-1~bpo12+1_amd64.deb
+    set +e
+
+    versions=(9.0.2 9.0.1 8.2.4)
+    found_version=""
+    for version in ${versions[@]}; do
+        qemu_deb="qemu-user-static_${version}+ds-1_amd64.deb"
+        echo "Checking for http://ftp.debian.org/debian/pool/main/q/qemu/${qemu_deb}"
+        if wget -q --method=HEAD http://ftp.debian.org/debian/pool/main/q/qemu/${qemu_deb} &> /dev/null;
+        then
+            echo "Found qemu version ${version}"
+            found_version=${qemu_deb}
+            break
+        fi
+    done
+
     set -eo pipefail
-    wget http://ftp.debian.org/debian/pool/main/q/qemu/${qemu_deb}
-    sudo dpkg -i ${qemu_deb}
+    if [[ -z "${found_version}" ]] ; then
+        # If nothing is found, error out and fail
+        echo "None of the requested qemu versions ${versions[*]} are available."
+        false
+    fi
+
+    wget http://ftp.debian.org/debian/pool/main/q/qemu/${found_version}
+    sudo dpkg -i ${found_version}
+
     sudo systemctl restart systemd-binfmt.service
     set +eo pipefail
 }