epm-packages: add size sort support for rpm and dpkg

bin/epm

@@ -267,6 +267,9 @@ check_option()
     --short)              # HELPOPT: short output (just 'package' instead 'package-version-release')
         short="--short"
         ;;
+    --sort)               # HELPOPT: sort output, f.i. --sort=size (supported only for packages command)
+        sort="$1"
+        ;;
     --auto)               # HELPOPT: non interactive mode
         non_interactive=1
         ;;

bin/epm-packages

@@ -17,9 +17,26 @@
 # along with this program. If not, see <http://www.gnu.org/licenses/>.
 #
 
+__epm_packages_sort()
+{
+# FIXME: sort depends on --sort value
+case $PMTYPE in
+	apt-rpm|yum-rpm|urpm-rpm|zypper-rpm|dnf-rpm)
+		docmd rpm -qa --queryformat "%{size} %{name}-%{version}-%{release}\n" $pkg_filenames | sort -n
+		;;
+	apt-dpkg)
+		docmd dpkg-query -W --showformat="\${Size} \${Package}-\${Version}\n" $pkg_filenames | sort -n
+		;;
+	*)
+		fatal "Sorted package list are not realized for $PMTYPE"
+		;;
+esac
+}
+
 epm_packages()
 {
 	local CMD
+	[ -n "$sort" ] && __epm_packages_sort && return
 
 case $PMTYPE in
 	apt-rpm)