feat: add postinst and prerm for the dkms format package generated by Debian format packaging

debian/rtl8821cu-dkms.postinst

@@ -0,0 +1,49 @@
+#!/bin/sh
+# Copyright (C) 2002-2005 Flavio Stanchina
+# Copyright (C) 2005-2006 Aric Cyr
+# Copyright (C) 2007 Mario Limonciello
+# Copyright (C) 2009 Alberto Milone
+
+set -e
+
+NAME=rtl8821cu
+PACKAGE_NAME=$NAME-dkms
+DEB_NAME=$(echo $PACKAGE_NAME | sed 's,_,-,')
+CVERSION=`dpkg-query -W -f='${Version}' $DEB_NAME | awk -F "-" '{print $1}' | cut -d\: -f2`
+ARCH=`dpkg-architecture -qDEB_BUILD_GNU_CPU`
+
+dkms_configure () {
+        for POSTINST in /usr/lib/dkms/common.postinst "/usr/share/$PACKAGE_NAME/postinst"; do
+                if [ -f "$POSTINST" ]; then
+                        "$POSTINST" "$NAME" "$CVERSION" "/usr/share/$PACKAGE_NAME" "$ARCH" "$2"
+                        return $?
+                fi
+                echo "WARNING: $POSTINST does not exist." >&2
+        done
+        echo "ERROR: DKMS version is too old and $PACKAGE_NAME was not" >&2
+        echo "built with legacy DKMS support." >&2
+        echo "You must either rebuild $PACKAGE_NAME with legacy postinst" >&2
+        echo "support or upgrade DKMS to a more current version." >&2
+        return 1
+}
+
+case "$1" in
+        configure)
+                dkms_configure
+        ;;
+
+        abort-upgrade|abort-remove|abort-deconfigure)
+        ;;
+
+        *)
+                echo "postinst called with unknown argument \`$1'" >&2
+                exit 1
+        ;;
+esac
+
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
+
+
+
+exit 0

debian/rtl8821cu-dkms.prerm

@@ -0,0 +1,30 @@
+#!/bin/sh
+
+NAME=rtl8821cu
+VERSION=5.4.1
+
+set -e
+
+case "$1" in
+    remove|upgrade|deconfigure)
+      if [  "`dkms status -m $NAME`" ]; then
+         dkms remove -m $NAME -v $VERSION --all
+      fi
+    ;;
+
+    failed-upgrade)
+    ;;
+
+    *)
+        echo "prerm called with unknown argument \`$1'" >&2
+        exit 1
+    ;;
+esac
+
+
+
+exit 0
+
+
+
+

debian/rules

@@ -19,7 +19,8 @@ override_dh_auto_install:
 	dh_install -prtl8821cu-dkms -X.o -X.ko platform/   usr/src/rtl8821cu-$(VERSION)
 	dh_install -prtl8821cu-dkms -X.o -X.ko include/    usr/src/rtl8821cu-$(VERSION)
 	dh_install -prtl8821cu-dkms Makefile               usr/src/rtl8821cu-$(VERSION)
-	dh_install -prtl8821cu-dkms rtl8821c.mk						 usr/src/rtl8821cu-$(VERSION)
+	dh_install -prtl8821cu-dkms rtl8821c.mk			   usr/src/rtl8821cu-$(VERSION)
+	dh_install -prtl8821cu-dkms dkms.conf              usr/src/rtl8821cu-$(VERSION)
 	install -d $(XDIR)/debian
 	cd debian && install rules.m-a ../$(XDIR)/debian/rules && cp -r *modules.in* changelog copyright compat *_KVERS_* ../$(XDIR)/debian/
 	cd debian/rtl8821cu-src/usr/src && cp -a ../../../rtl8821cu-dkms/usr/src/rtl8821cu-$(VERSION)/* modules/rtl8821cu-src/ && XZ_OPT=-9 tar --xz -c -f rtl8821cu.tar.xz modules && rm -rf modules