include/rootfs: rework handling of post-install scripts for APK

Rework handling of post-install scripts for APK. As we do with OPKG,
lets just iterate between each post-install package so we can actually
check if something fail in applying them.

To do this we first extract each .post-install script in APK
scripts.tar.

Also remove these files from final image as they are needed only for the
first installation of the packages.

Link: https://github.com/openwrt/openwrt/pull/15543
Signed-off-by: Christian Marangi <[email protected]>

include/rootfs.mk

@@ -80,18 +80,21 @@ define prepare_rootfs
 	@( \
 		cd $(1); \
 		if [ -n "$(CONFIG_USE_APK)" ]; then \
-		$(STAGING_DIR_HOST)/bin/tar -xf ./lib/apk/db/scripts.tar --wildcards "*.post-install" -O > script.sh; \
-		chmod +x script.sh; \
-		IPKG_INSTROOT=$(1) $$(command -v bash) script.sh; \
+			IPKG_POSTINST_PATH=./lib/apk/db/*.post-install; \
+			$(STAGING_DIR_HOST)/bin/tar -C ./lib/apk/db/ -xf ./lib/apk/db/scripts.tar --wildcards "*.post-install"; \
 		else \
-		for script in ./usr/lib/opkg/info/*.postinst; do \
+			IPKG_POSTINST_PATH=./usr/lib/opkg/info/*.postinst; \
+		fi; \
+		for script in $$IPKG_POSTINST_PATH; do \
 			IPKG_INSTROOT=$(1) $$(command -v bash) $$script; \
 			ret=$$?; \
 			if [ $$ret -ne 0 ]; then \
 				echo "postinst script $$script has failed with exit code $$ret" >&2; \
 				exit 1; \
 			fi; \
+			[ -n "$(CONFIG_USE_APK)" ] && $(STAGING_DIR_HOST)/bin/tar --delete -f ./lib/apk/db/scripts.tar $$(basename $$script); \
 		done; \
+		if [ -z "$(CONFIG_USE_APK)" ]; then \
 		$(if $(IB),,awk -i inplace \
 			'/^Status:/ { \
 				if ($$3 == "user") { $$3 = "ok" } \
@@ -115,6 +118,7 @@ define prepare_rootfs
 	rm -rf \
 		$(1)/boot \
 		$(1)/tmp/* \
+		$(1)/lib/apk/db/*.post-install* \
 		$(1)/usr/lib/opkg/info/*.postinst* \
 		$(1)/usr/lib/opkg/lists/* \
 		$(1)/var/lock/*.lock