From d9cb59fcc670f14005c3c40786674094c073c528 Mon Sep 17 00:00:00 2001
From: lemoer <git@irrelefant.net>
Date: Wed, 6 Jan 2021 17:20:07 +0100
Subject: [PATCH] scripts: add imagebuilder/build_gluon.sh

---
 ...ay-add-scripts-imagebuilder-into-dir.patch | 19 +++++
 scripts/imagebuilder/build_gluon.sh           | 72 +++++++++++++++++++
 2 files changed, 91 insertions(+)
 create mode 100644 patches/openwrt/0019-imagebuilder-hacky-way-add-scripts-imagebuilder-into-dir.patch
 create mode 100755 scripts/imagebuilder/build_gluon.sh

diff --git a/patches/openwrt/0019-imagebuilder-hacky-way-add-scripts-imagebuilder-into-dir.patch b/patches/openwrt/0019-imagebuilder-hacky-way-add-scripts-imagebuilder-into-dir.patch
new file mode 100644
index 00000000..252ddee7
--- /dev/null
+++ b/patches/openwrt/0019-imagebuilder-hacky-way-add-scripts-imagebuilder-into-dir.patch
@@ -0,0 +1,19 @@
+From: lemoer <git@irrelefant.net>
+Date: Wed, 6 Jan 2021 17:23:27 +0100
+Subject: imagebuilder: hacky way add scripts/imagebuilder into dir
+
+diff --git a/target/imagebuilder/Makefile b/target/imagebuilder/Makefile
+index e478b5f266cf47a638c82798e8ee596d1820d2ee..4b538529e950f820aede91275b779ab53f88ff71 100644
+--- a/target/imagebuilder/Makefile
++++ b/target/imagebuilder/Makefile
+@@ -39,6 +39,10 @@ $(BIN_DIR)/$(IB_NAME).tar.xz: clean
+ 	$(CP) -L \
+ 		$(TOPDIR)/../scripts \
+ 		$(PKG_BUILD_DIR)/gluon/
++	$(CP) -L \
++		$(TOPDIR)/../scripts/imagebuilder/* \
++		$(PKG_BUILD_DIR)/
++	echo "{}" > $(PKG_BUILD_DIR)/custom.json
+ 
+ ifeq ($(CONFIG_IB_STANDALONE),)
+ 	echo '## Remote package repositories' >> $(PKG_BUILD_DIR)/repositories.conf
diff --git a/scripts/imagebuilder/build_gluon.sh b/scripts/imagebuilder/build_gluon.sh
new file mode 100755
index 00000000..126d6469
--- /dev/null
+++ b/scripts/imagebuilder/build_gluon.sh
@@ -0,0 +1,72 @@
+#!/bin/sh
+
+set -e
+
+SCRIPT_DIR="$(dirname "$0")"
+CUSTOM_DIR="$SCRIPT_DIR/gluon/tmp/custom/"
+
+cd "$SCRIPT_DIR"
+
+BOARD="$(grep -e '^CONFIG_TARGET_BOARD=' .config | cut -d '=' -f 2 | tr -d '"')"
+SUBTARGET="$(grep -e '^CONFIG_TARGET_SUBTARGET=' .config | cut -d '=' -f 2 | tr -d '"')"
+
+config2profiles() {
+	# Using .profiles.mk is not an option, because we disable a lot of devices
+	# in gluon and we do not want them to be built.
+	grep -e "^CONFIG_TARGET_DEVICE_${BOARD}_${SUBTARGET}_DEVICE.*=y\$" "$1" | \
+		cut -d '=' -f 1 | cut -d '_' -f 7-
+}
+
+config2packages() {
+	# - some config symbols, which are not a package appear, therefore strip
+	#   everything with uppercase characters
+	# - installing grub is wrong
+	grep -e '^CONFIG_PACKAGE.*=y' "$1" | \
+		cut -d '_' -f 3- | cut -d '=' -f 1 | \
+		grep -ve '[A-Z]' | \
+		grep -ve '^grub2$' | \
+		tr -s '\n' ' '
+
+	# Per device packages
+	grep -e "^CONFIG_TARGET_DEVICE_PACKAGES_${BOARD}_${SUBTARGET}_DEVICE_$2=" "$1" | \
+		cut -d '=' -f 2 | tr -d '"'
+}
+
+if [ -z "$INCLUDE_ONLY" ] && [ "$#" -lt 1 ]; then
+	echo 'This is the gluon imagebuilder. You can use this to build a '
+	echo 'customized gluon:'
+	echo
+	echo '- Note, that we do not fully support the imagebuilder.'
+	echo '- Adding additional packages or removing them is not supported.'
+	echo '- Adding arbitrary files is not supported.'
+	echo '- The imagebuilder is only used to to add a custom config custom.json'
+	echo '  with chosen configuration options to gluon. Please refer to'
+	echo '  https://gluon.readthedocs.io/ to see the available options.'
+	echo '- Place your custom.json in this directory.'
+	echo
+	echo 'To continue, run this script with'
+	echo
+	echo "#> $0 PROFILE"
+	echo
+	echo 'where PROFILE may be one of the following:'
+	config2profiles .config | sed 's/^/- /'
+	exit 0
+fi
+
+
+if [ -z "$INCLUDE_ONLY" ]; then
+	rm -rf "$CUSTOM_DIR"
+	mkdir -p "$CUSTOM_DIR/lib/gluon/"
+	cp "custom.json" "$CUSTOM_DIR/lib/gluon/"
+
+	if ! config2profiles .config | grep -e "^$1\$"; then
+		echo "Profile $1 not available. Call without argument to see available profiles."
+		exit 1
+	fi
+	# DEVICE_TYPE=other is kind of a hack to ensure kmod-ipt-offload, odhcpd-ipv6only, ppp and
+	# ppp-mod-pppoe are not in $DEFAULT_PACKAGES. Otherwise the build will fail, because gluon
+	# does not provide them.
+	make image \
+		FILES="$CUSTOM_DIR" DEVICE_TYPE=other \
+		PACKAGES="$(config2packages .config "$1")" PROFILE="$1"
+fi