Handle rpm on Debian-based distributions

marcomagdy · marcomagdy · commit fcbfc910b926 · 2018-12-21T07:27:07.000-08:00
RPM can be installed as a dependency (or separately) in Debian-based distros that ultimately use dpkg. In those cases, the packager script should handle the case in which querying rpm returns nothing. Fixes awslabs#15
diff --git a/packaging/packager b/packaging/packager
@@ -65,13 +65,17 @@ function package_libc_via_pacman {
 
 function package_libc_via_dpkg() {
     if type dpkg-query > /dev/null 2>&1; then
-        dpkg-query --listfiles libc6 | sed -E '/\.so$|\.so\.[0-9]+$/!d'
+        if [ $(dpkg-query --listfiles libc6 | wc -l) -gt 0 ]; then
+            dpkg-query --listfiles libc6 | sed -E '/\.so$|\.so\.[0-9]+$/!d'
+        fi
     fi
 }
 
 function package_libc_via_rpm() {
     if type rpm > /dev/null 2>&1; then
-        rpm --query --list glibc | sed -E '/\.so$|\.so\.[0-9]+$/!d'
+       if [ $(rpm --query --list --quiet glibc | wc -l) -gt 0 ]; then
+           rpm --query --list glibc | sed -E '/\.so$|\.so\.[0-9]+$/!d'
+       fi
     fi
 }
 
