add CentOS 8 support

.circleci/config.yml

@@ -136,9 +136,12 @@ workflows:
       - build-rpm-package:
           name: centos7
           image: centos:centos7
+      - build-rpm-package:
+          name: centos8
+          image: centos:centos8
       - build-rpm-package:
           name: amazon-linux-2
           image: amazonlinux:2
       - build-rpm-package:
           name: amazon-linux
-          image: amazonlinux:1
\ No newline at end of file
+          image: amazonlinux:1

mangle-shebangs.sh

@@ -3,9 +3,10 @@
 SYSTEM_RELEASE_PATH=/etc/system-release
 RHEL8_REGEX="Red Hat Enterprise Linux release 8"
 FEDORA_REGEX="Fedora release"
+CENTOS8_REGEX="CentOS Linux release 8"
 
-# RHEL8 and Fedora30+ both treat shebangs of the form "#!/usr/bin/env python" as errors
-if [ -f $SYSTEM_RELEASE_PATH ] && [[ "$(cat $SYSTEM_RELEASE_PATH)" =~ $RHEL8_REGEX|$FEDORA_REGEX ]]; then
+# RHEL8, Fedora30+ and CentOS8 treat shebangs of the form "#!/usr/bin/env python" as errors
+if [ -f $SYSTEM_RELEASE_PATH ] && [[ "$(cat $SYSTEM_RELEASE_PATH)" =~ $RHEL8_REGEX|$FEDORA_REGEX|$CENTOS8_REGEX ]]; then
     # Replace the first line in .py to "#!/usr/bin/env python2" no
     # matter what it was before
     sed -i -e '1 s/^.*$/\#!\/usr\/bin\/env python2/' src/watchdog/__init__.py