diff --git a/packages/genpkg.sh b/packages/genpkg.sh
new file mode 100755
index 0000000..3ae98f2
--- /dev/null
+++ b/packages/genpkg.sh
@@ -0,0 +1,47 @@
+#!/bin/bash
+# author: deadc0de6
+#
+# update packages
+#
+
+# $1: version
+up()
+{
+  # update pkgver
+  [ "${1}" != "" ] && sed -i "s/^pkgver=.*$/pkgver=${1}/g" ${pkgfile}
+  # create srcinfo
+  rm -f .SRCINFO
+  makepkg --printsrcinfo > .SRCINFO
+}
+
+# pivot
+cur=$(dirname "$(readlink -f "${0}")")
+opwd=`pwd`
+pkgfile="PKGBUILD"
+cd ${cur}
+
+########################
+# update arch package
+# tag release
+########################
+dir="arch-dotdrop"
+echo "doing ${dir} ..."
+cd ${dir}
+version="`git describe --abbrev=0 --tags | sed 's/^v//g'`"
+up ${version}
+cd ${OLDPWD}
+
+########################
+# update arch package
+# git release
+########################
+dir="arch-dotdrop-git"
+echo "doing ${dir} ..."
+cd ${dir}
+# replace pkgver
+#version="`git describe --long --tags | sed 's/\([^-]*-g\)/r\1/;s/-/./g;s/^v//g'`"
+up
+cd ${OLDPWD}
+
+# pivot back
+cd ${opwd}