image.bbclass: Add function to write out an image manifest

meta/classes/image.bbclass

@@ -199,6 +199,13 @@ make_zimage_symlink_relative () {
 	fi
 }
 
+write_image_manifest () {
+	rootfs_${IMAGE_PKGTYPE}_write_manifest
+
+	rm -f ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.manifest
+        ln -s ${IMAGE_NAME}.rootfs.manifest ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.manfiest
+}
+
 # Make login manager(s) enable automatic login.
 # Useful for devices where we do not want to log in at all (e.g. phones)
 set_image_autologin () {

meta/classes/rootfs_ipk.bbclass

@@ -98,6 +98,20 @@ rootfs_ipk_log_check() {
 	true
 }
 
+rootfs_ipk_write_manifest() {
+	manifest=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.manifest
+	cp ${IMAGE_ROOTFS}/usr/lib/opkg/status $manifest
+
+	sed '/Depends/d' -i $manifest
+	sed '/Status/d' -i $manifest
+	sed '/Architecture/d' -i $manifest
+	sed '/Installed-Time/d' -i $manifest
+	sed '/Auto-Installed/d' -i $manifest
+	sed '/Recommends/d' -i $manifest
+	sed '/Provides/d' -i $manifest
+	sed '/Conflicts/d' -i $manifest
+}
+
 remove_packaging_data_files() {
 	rm -rf ${IMAGE_ROOTFS}/usr/lib/opkg/
 }