Improved OpenWrt Makefile: set an optional libnDPI commit hash

Signed-off-by: Toni Uhlig <matzeton@googlemail.com>

packages/openwrt/net/nDPId-testing/Makefile

@@ -42,6 +42,15 @@ config NDPID_TESTING_COLLECTD_SUPPORT
    help
      This option enables collectd to gather nDPId statistics via plugin-exec.
      Disabled by default.
+
+config NDPID_TESTING_LIBNDPI_COMMIT_HASH
+   string "libnDPI commit hash"
+   depends on PACKAGE_nDPId-testing
+   default ""
+   help
+     Set the desired libnDPI git commit hash you want to link nDPId against.
+     Leave empty to use the dev branch.
+     Disabled by default.
 endef
 
 CMAKE_OPTIONS += -DBUILD_EXAMPLES=ON
@@ -60,30 +69,29 @@ ifneq ($(CONFIG_LIBNDPI_GCRYPT),)
 CMAKE_OPTIONS += -DNDPI_WIDTH_GCRYPT=ON
 endif
 
-ifdef NDPID_TESTING_COLLECTD_SUPPORT
+ifdef CONFIG_NDPID_TESTING_COLLECTD_SUPPORT
 define Package/nDPId-testing/install-collectd-files
 	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/nDPIsrvd-collectd $(1)/usr/bin/nDPIsrvd-testing-collectd
 endef
 endif
 
-define Build/Prepare
-	@echo 'tar: $(DL_DIR)/$(PKG_SOURCE)'
-	@echo 'PKG_DIRECTORY=$(PKG_DIRECTORY)'
-	@echo 'PKG_SOURCE_SUBDIR=$(PKG_SOURCE_SUBDIR)'
-	tar \
-		--exclude-tag-all='gcov.css' \
-		--exclude-tag-all='cmake_install.cmake' \
-		--exclude='libnDPI-*.tar' \
-		--exclude='nDPId-*.tar.bz2' \
-		--exclude='libnDPI' \
-		--exclude='test' \
-		--exclude-vcs \
-		--exclude-vcs-ignores \
-		--transform 's,^,$(PKG_SOURCE_SUBDIR)/,' \
-		-czf "$(DL_DIR)/$(PKG_SOURCE)" -C "$(PKG_DIRECTORY)" .
-	tar -tzf "$(DL_DIR)/$(PKG_SOURCE)"
-	$(PKG_UNPACK)
-	cd '$(PKG_BUILD_DIR)' && patch -p1 < $(PKG_BUILD_DIR)/packages/openwrt/net/nDPId-testing/001-enable-in-source-build.patch
+ifdef CONFIG_NDPID_TESTING_LIBNDPI_COMMIT_HASH
+define Package/nDPId-testing/get-and-build-libndpi
+	@echo 'Using commit hash: $(CONFIG_NDPID_TESTING_LIBNDPI_COMMIT_HASH)'
+	env \
+		CC="$(TARGET_CC)" \
+		AR="$(TARGET_AR)" \
+		RANLIB="$(TARGET_RANLIB)" \
+		CFLAGS="$(TARGET_CFLAGS)" \
+		CPPFLAGS="$(TARGET_CPPFLAGS)" \
+		LDFLAGS="$(TARGET_LDFLAGS)" \
+		MAKE_PROGRAM="$(MAKE)" \
+		NDPI_COMMIT_HASH=$(CONFIG_NDPID_TESTING_LIBNDPI_COMMIT_HASH) \
+		$(PKG_BUILD_DIR)/scripts/get-and-build-libndpi.sh
+endef
+else
+define Package/nDPId-testing/get-and-build-libndpi
+	@echo 'Using dev branch.'
 	env \
 		CC="$(TARGET_CC)" \
 		AR="$(TARGET_AR)" \
@@ -94,6 +102,19 @@ define Build/Prepare
 		MAKE_PROGRAM="$(MAKE)" \
 		$(PKG_BUILD_DIR)/scripts/get-and-build-libndpi.sh
 endef
+endif
+
+define Build/Prepare
+	@echo 'tar: $(DL_DIR)/$(PKG_SOURCE)'
+	@echo 'pwd: $(shell pwd)'
+	@echo 'PKG_DIRECTORY=$(PKG_DIRECTORY)'
+	@echo 'PKG_SOURCE_SUBDIR=$(PKG_SOURCE_SUBDIR)'
+	cd '$(PKG_DIRECTORY)' && git archive --prefix '$(PKG_SOURCE_SUBDIR)/' -o '$(DL_DIR)/new_$(PKG_SOURCE)' HEAD
+	mv '$(DL_DIR)/new_$(PKG_SOURCE)' '$(DL_DIR)/$(PKG_SOURCE)'; \
+	$(PKG_UNPACK)
+	cd '$(PKG_BUILD_DIR)' && patch -p1 < $(PKG_BUILD_DIR)/packages/openwrt/net/nDPId-testing/001-enable-in-source-build.patch
+	$(call Package/nDPId-testing/get-and-build-libndpi)
+endef
 
 define Package/nDPId-testing/install
 	$(INSTALL_DIR) $(1)/usr/sbin
@@ -112,7 +133,7 @@ define Package/nDPId-testing/install
 	$(INSTALL_DIR) $(1)/etc/config
 	$(INSTALL_CONF) $(PKG_NAME).config $(1)/etc/config/$(PKG_NAME)
 
-	$(call Package/nDPId-testing/install-collectd-files)
+	$(call Package/nDPId-testing/install-collectd-files,$(1))
 endef
 
 $(eval $(call BuildPackage,nDPId-testing))

scripts/get-and-build-libndpi.sh

@@ -7,7 +7,12 @@ WGET_EXEC="$(command -v wget || printf '%s' "")"
 UNZIP_EXEC="$(command -v unzip || printf '%s' "")"
 MAKE_EXEC="$(command -v make || printf '%s' "")"
 
-GITHUB_FALLBACK_URL='https://github.com/ntop/nDPI/archive/refs/heads/dev.zip'
+if [ -z "${NDPI_COMMIT_HASH}" ]; then
+    NDPI_COMMIT_HASH="dev"
+    GITHUB_FALLBACK_URL='https://github.com/ntop/nDPI/archive/refs/heads/dev.zip'
+else
+    GITHUB_FALLBACK_URL="https://github.com/ntop/nDPI/archive/${NDPI_COMMIT_HASH}.zip"
+fi
 
 if [ -z "${GIT_EXEC}" -o -z "${WGET_EXEC}" -o -z "${UNZIP_EXEC}" -o -z "${MAKE_EXEC}" ]; then
     printf '%s\n' "Required Executables missing: git, wget, unzip, make" >&2
@@ -44,6 +49,7 @@ ADDITIONAL_ARGS=${ADDITIONAL_ARGS:-}
 MAKE_PROGRAM=${MAKE_PROGRAM:-}
 MAKEFLAGS=${MAKEFLAGS}
 DEST_INSTALL=${DEST_INSTALL:-}
+NDPI_COMMIT_HASH=${NDPI_COMMIT_HASH:-}
 -----------------------------------
 EOF
 
@@ -75,10 +81,10 @@ if [ ${GIT_SUCCESS} -eq 0 ]; then
     printf 'URL: %s\n' "${GITHUB_FALLBACK_URL}"
     printf '%s\n' '-----------------------------------'
     set -x
-    wget "${GITHUB_FALLBACK_URL}" -O ./libnDPI-github-dev.zip
-    unzip ./libnDPI-github-dev.zip
+    wget "${GITHUB_FALLBACK_URL}" -O ./libnDPI-github-${NDPI_COMMIT_HASH}.zip
+    unzip ./libnDPI-github-${NDPI_COMMIT_HASH}.zip
     rm -rf ./libnDPI
-    mv ./nDPI-dev ./libnDPI
+    mv ./nDPI-${NDPI_COMMIT_HASH} ./libnDPI
 fi
 
 cd ./libnDPI