Merge pull request #12 from fledge-iot/FOGL-3424

FOGL-3424 Debian postrm script improvised as per different cases to follow with

Author: ashish-jabble

packages/Debian/common/DEBIAN/postrm

@@ -35,5 +35,24 @@ remove_fledge_sudoer_file() {
     rm -rf /etc/sudoers.d/fledge
 }
 
-echo "Remove fledge sudoers file"
-remove_fledge_sudoer_file
+case "$1" in
+  remove|purge)
+    echo "Cleanup of files"
+    remove_unused_files
+    echo "Remove fledge sudoers file"
+    remove_fledge_sudoer_file
+    ;;
+  disappear)
+    ;;
+  upgrade)
+    ;;
+  failed-upgrade)
+    ;;
+  abort-install)
+    ;;
+  abort-upgrade)
+    ;;
+  *) echo "$0: didn't understand being called with \`$1'" 1>&2
+     exit 0;;
+esac
+exit 0

packages/Debian/common/DEBIAN/preinst

@@ -84,7 +84,8 @@ then
         exit 1
     fi
 
-    # Avoid the execution of the function during an upgrade
+    # Below workaround needed only when we upgrade from 1.8.0 ONLY
+    # As Debian flow be like 1.8.0.prerm => .next.preinst => 1.8.0.postrm => .next.postinst
     sed -i -e 's/^remove_unused_files$/#remove_unused_files/' /var/lib/dpkg/info/fledge.postrm
 
     # Persist current version in case of upgrade/downgrade