package/networkd-dispatcher: new package

Networkd-dispatcher is a dispatcher daemon for systemd-networkd
connection status changes. This daemon is similar to
NetworkManager-dispatcher, but is much more limited in the types of
events it supports due to the limited nature of systemd-networkd.

To simplify the large number of transitive dependencies, remove the ones
that are implied by glibc.

To simplify the comment, simply don't show it if python is selected.
Python 2 is going to be removed soon anyway.

Signed-off-by: Michael Nosthoff <buildroot@heine.tech>
[Arnout: add Config.in comment and rework/simplify dependencies]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

DEVELOPERS

@@ -2002,6 +2002,7 @@ N:	Michael Nosthoff <buildroot@heine.tech>
 F:	package/grpc/
 F:	package/gtest/
 F:	package/libabseil-cpp/
+F:	package/networkd-dispatcher/
 F:	package/protobuf/
 F:	package/re2/
 

package/Config.in

@@ -2297,6 +2297,7 @@ endif
 	source "package/netstat-nat/Config.in"
 	source "package/network-manager/Config.in"
 	source "package/network-manager-openvpn/Config.in"
+	source "package/networkd-dispatcher/Config.in"
 	source "package/nfacct/Config.in"
 	source "package/nftables/Config.in"
 	source "package/nginx/Config.in"

package/networkd-dispatcher/Config.in

@@ -0,0 +1,29 @@
+config BR2_PACKAGE_NETWORKD_DISPATCHER
+	bool "networkd-dispatcher"
+	depends on BR2_PACKAGE_GOBJECT_INTROSPECTION_ARCH_SUPPORTS # python-gobject -> gobject-introspection
+	depends on BR2_HOST_GCC_AT_LEAST_8 # python-gobject -> gobject-introspection -> host-qemu
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # python-gobject -> gobject-introspection
+	depends on BR2_TOOLCHAIN_USES_GLIBC # python-gobject -> gobject-introspection
+	depends on !BR2_PACKAGE_PYTHON # python3
+	depends on BR2_PACKAGE_SYSTEMD # runtime
+	select BR2_PACKAGE_DBUS # dbus-python
+	select BR2_PACKAGE_DBUS_PYTHON # runtime
+	select BR2_PACKAGE_PYTHON3 # python-gobject
+	select BR2_PACKAGE_PYTHON_GOBJECT # runtime
+	select BR2_PACKAGE_SYSTEMD_NETWORKD # runtime
+	help
+	  Networkd-dispatcher is a dispatcher daemon for
+	  systemd-networkd connection status changes.
+	  This daemon is similar to NetworkManager-dispatcher,
+	  but is much more limited in the types of events it
+	  supports due to the limited nature of systemd-networkd.
+
+	  https://gitlab.com/craftyguy/networkd-dispatcher
+
+comment "networkd-dispatcher needs a glibc toolchain, gcc >= 4.9, host gcc >= 8"
+	depends on BR2_PACKAGE_GOBJECT_INTROSPECTION_ARCH_SUPPORTS
+	depends on BR2_PACKAGE_SYSTEMD
+	depends on !BR2_PACKAGE_PYTHON
+	depends on !BR2_HOST_GCC_AT_LEAST_8 || \
+		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
+		!BR2_TOOLCHAIN_USES_GLIBC

package/networkd-dispatcher/networkd-dispatcher.hash

@@ -0,0 +1,3 @@
+# locally computed
+sha256  1682c0106d9d2879087612e76aebb87672ebf339c43f229a3ee27dadb428575b  networkd-dispatcher-2.1.tar.bz2
+sha256  589ed823e9a84c56feb95ac58e7cf384626b9cbf4fda2a907bc36e103de1bad2  LICENSE

package/networkd-dispatcher/networkd-dispatcher.mk

@@ -0,0 +1,25 @@
+################################################################################
+#
+# networkd-dispatcher
+#
+################################################################################
+
+NETWORKD_DISPATCHER_VERSION = 2.1
+NETWORKD_DISPATCHER_SOURCE = networkd-dispatcher-$(NETWORKD_DISPATCHER_VERSION).tar.bz2
+NETWORKD_DISPATCHER_SITE = https://gitlab.com/craftyguy/networkd-dispatcher/-/archive/$(NETWORKD_DISPATCHER_VERSION)
+NETWORKD_DISPATCHER_LICENSE = GPL-3.0
+NETWORKD_DISPATCHER_LICENSE_FILES = LICENSE
+
+define NETWORKD_DISPATCHER_INSTALL_TARGET_CMDS
+	$(INSTALL) -D -m 0755 $(@D)/networkd-dispatcher $(TARGET_DIR)/usr/bin/networkd-dispatcher
+	mkdir -p $(TARGET_DIR)/etc/networkd-dispatcher/{routable,dormant,no-carrier,off,carrier,degraded,configuring,configured}.d
+endef
+
+define NETWORKD_DISPATCHER_INSTALL_INIT_SYSTEMD
+	$(INSTALL) -D -m 0644 $(@D)/networkd-dispatcher.service \
+		$(TARGET_DIR)/usr/lib/systemd/system/networkd-dispatcher.service
+	$(INSTALL) -D -m 0644 $(@D)/networkd-dispatcher.conf \
+		$(TARGET_DIR)/etc/conf.d/networkd-dispatcher.conf
+endef
+
+$(eval $(generic-package))