systemd: crc-self-sufficient-env: prefer CRC_SELF_SUFFICIENT if available

Author: kpouget

systemd/crc-self-sufficient-env.sh

@@ -1,15 +1,34 @@
 #!/bin/bash
 
-# set -o errexit disabled to capture the test return code
 set -o pipefail
 set -o nounset
 set -o errtrace
 
+source /etc/sysconfig/crc-env || echo "WARNING: crc-env not found"
+
+if [[ "${CRC_SELF_SUFFICIENT:-}" ]]; then
+    echo "Found CRC_SELF_SUFFICIENT=$CRC_SELF_SUFFICIENT"
+
+    if [[ ! "${CRC_SELF_SUFFICIENT}" =~ ^[01]$ ]]; then
+        echo "ERROR: CRC_SELF_SUFFICIENT should be 0 or 1 ..." >&2
+        exit 1
+    fi
+
+    if [[ "$CRC_SELF_SUFFICIENT" == 1 ]]; then
+        exit 0
+    else
+        exit 1
+    fi
+fi
+
 TEST_TIMEOUT=120
 VSOCK_COMM_PORT=1024
 
+set +o errexit
+# set -o errexit disabled to capture the test return code
 timeout "$TEST_TIMEOUT" python3 /usr/local/bin/crc-test-vsock.py "$VSOCK_COMM_PORT"
 returncode=$?
+set -o errexit
 
 case "$returncode" in
     19) # ENODEV