Merge ~kchsieh/ipu6-camera-hal/+git/packaging:main into ~oem-solutions-engineers/ipu6-camera-hal/+git/packaging:main

[Kai-Chuan Hsieh]

debian: Add libcamhal-ipu6ep-common script to remove contents

Files under etc should be removed from filesystem and dpkg-divert, since the package will be obsoleted.

[Shih-Yuan Lee (fourdollars)]

LGTM

review: Approve

diff --git a/debian/libcamhal-ipu6ep-common.preinst b/debian/libcamhal-ipu6ep-common.preinst
new file mode 100644
index 0000000..4fd6af1
--- /dev/null
+++ b/debian/libcamhal-ipu6ep-common.preinst
@@ -0,0 +1,54 @@
+#!/bin/bash
+# preinst script for libcamhal-ipu6ep-common
+#
+# see: dh_installdeb(1)
+
+set -e
+
+# summary of how this script can be called:
+#        * <new-preinst> `install'
+#        * <new-preinst> `install' <old-version>
+#        * <new-preinst> `upgrade' <old-version>
+#        * <old-preinst> `abort-upgrade' <new-version>
+# for details, see https://www.debian.org/doc/debian-policy/ or
+# the debian-policy package
+
+
+case "$1" in
+    install|upgrade)
+        CPU_MODALIAS_PATH="/sys/devices/system/cpu/modalias"
+        CPU_MODALIAS=$(cat "${CPU_MODALIAS_PATH}")
+        CPU_FAMILY="${CPU_MODALIAS:23:4}"
+        if [ "${CPU_FAMILY}" != "0006" ]; then
+            echo "The cpu family is not supported"
+            exit 0
+        fi
+        CPU_MODEL="${CPU_MODALIAS:30:4}"
+        case "$CPU_MODEL" in
+            ('008C' | '008D' | '009A' | '00BA' | '00AA') # TGL + ADL + RPL + MTL
+                if [ -e /etc/modprobe.d/v4l2-relayd.conf ]; then
+                    rm /etc/modprobe.d/v4l2-relayd.conf
+                    dpkg-divert --rename --remove /etc/modprobe.d/v4l2-relayd.conf
+                fi
+                if [ -e /lib/udev/rules.d/72-intel-mipi-ipu6-camera.rules ]; then
+                    rm /lib/udev/rules.d/72-intel-mipi-ipu6-camera.rules
+                    dpkg-divert --rename --remove /lib/udev/rules.d/72-intel-mipi-ipu6-camera.rules
+                fi
+                if [ -e /etc/v4l2-relayd ]; then
+                    rm /etc/v4l2-relayd
+                    dpkg-divert --rename --remove /etc/v4l2-relayd
+                fi
+                ;;
+	    *) # default
+		echo "The platform is not supported"
+		;;
+        esac
+    ;;
+esac
+
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
+
+#DEBHELPER#
+
+exit 0