#!/bin/bash
#DivestOS: A privacy focused mobile distribution
#Copyright (c) 2017-2022 Divested Computing Group
#
#This program is free software: you can redistribute it and/or modify
#it under the terms of the GNU General Public License as published by
#the Free Software Foundation, either version 3 of the License, or
#(at your option) any later version.
#
#This program is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#GNU General Public License for more details.
#
#You should have received a copy of the GNU General Public License
#along with this program.  If not, see <https://www.gnu.org/licenses/>.
umask 0022;

#Last verified: 2021-10-16

patchAllKernels() {
	startPatcher "kernel_asus_fugu kernel_asus_msm8953 kernel_cyanogen_msm8916 kernel_cyanogen_msm8974 kernel_google_yellowstone kernel_lge_hammerhead kernel_samsung_apq8084 kernel_xiaomi_msm8937";
}
export -f patchAllKernels;

scanWorkspaceForMalware() {
	local scanQueue="$DOS_BUILD_BASE/android $DOS_BUILD_BASE/art $DOS_BUILD_BASE/bionic $DOS_BUILD_BASE/bootable $DOS_BUILD_BASE/build $DOS_BUILD_BASE/compatibility $DOS_BUILD_BASE/dalvik $DOS_BUILD_BASE/device $DOS_BUILD_BASE/hardware $DOS_BUILD_BASE/libcore $DOS_BUILD_BASE/libnativehelper $DOS_BUILD_BASE/packages $DOS_BUILD_BASE/pdk $DOS_BUILD_BASE/platform_testing $DOS_BUILD_BASE/sdk $DOS_BUILD_BASE/system";
	scanQueue=$scanQueue" $DOS_BUILD_BASE/lineage-sdk $DOS_BUILD_BASE/vendor/lineage";
	scanForMalware true "$scanQueue";
}
export -f scanWorkspaceForMalware;

buildDevice() {
	cd "$DOS_BUILD_BASE";
	export OTA_KEY_OVERRIDE_DIR="$DOS_SIGNING_KEYS/$1";
	breakfast "lineage_$1-user" && mka target-files-package otatools && processRelease $1 true $2;
}
export -f buildDevice;

buildDeviceDebug() {
	cd "$DOS_BUILD_BASE";
	unset OTA_KEY_OVERRIDE_DIR;
	brunch "lineage_$1-eng";
}
export -f buildDeviceDebug;

buildAll() {
	umask 0022;
	cd "$DOS_BUILD_BASE";
	if [ "$DOS_MALWARE_SCAN_ENABLED" = true ]; then scanWorkspaceForMalware; fi;
	#SD800
	buildDevice hammerhead; #broken Bluetooth + maybe broken sepolicy
	#SD801
	buildDevice ham;
	#SD805
	buildDevice kccat6;
	buildDevice lentislte;
	#SD615
	buildDevice kipper;
	#SD430
	buildDevice land;
	#SD435
	buildDevice santoni;
	#Tegra
	buildDevice yellowstone; #broken sepolicy?
}
export -f buildAll;

patchWorkspace() {
	umask 0022;
	cd "$DOS_BUILD_BASE$1";
	touch DOS_PATCHED_FLAG;
	if [ "$DOS_MALWARE_SCAN_ENABLED" = true ]; then scanForMalware false "$DOS_PREBUILT_APPS $DOS_BUILD_BASE/build $DOS_BUILD_BASE/device $DOS_BUILD_BASE/vendor/lineage"; fi;
	verifyAllPlatformTags;
	gpgVerifyGitTag "$DOS_BUILD_BASE/external/hardened_malloc";
	gpgVerifyGitHead "$DOS_BUILD_BASE/external/chromium-webview";

	source build/envsetup.sh;
	#repopick -it pie-firewall;
	#repopick cannot handle empty commits
	repopick -it P_asb_2022-05 -e 341484;
	repopick -it P_asb_2022-06 -e 342112;
	repopick -it P_asb_2022-07 -e 342113;
	repopick -it P_asb_2022-08 -e 342114;
	repopick -it P_asb_2022-09 -e 342116;
	repopick -it P_asb_2022-10 -e 342119;
	repopick -it P_tzdata_2022;
	repopick -it P_asb_2022-11 -e 344200;
	repopick -it P_asb_2022-12 -e 345931;
	repopick -it P_asb_2023-01 -e 347129;

	sh "$DOS_SCRIPTS/Patch.sh";
	sh "$DOS_SCRIPTS_COMMON/Enable_Verity.sh";
	sh "$DOS_SCRIPTS_COMMON/Copy_Keys.sh";
	sh "$DOS_SCRIPTS/Defaults.sh";
	sh "$DOS_SCRIPTS/Rebrand.sh";
	sh "$DOS_SCRIPTS_COMMON/Optimize.sh";
	sh "$DOS_SCRIPTS_COMMON/Deblob.sh";
	sh "$DOS_SCRIPTS_COMMON/Patch_CVE.sh";
	sh "$DOS_SCRIPTS_COMMON/Post.sh";
	source build/envsetup.sh;
}
export -f patchWorkspace;

enableDexPreOpt() {
	cd "$DOS_BUILD_BASE$1";
	if [ -f BoardConfig.mk ]; then
		echo "WITH_DEXPREOPT := true" >> BoardConfig.mk;
		echo "WITH_DEXPREOPT_DEBUG_INFO := false" >> BoardConfig.mk;
		if true; then
			echo "WITH_DEXPREOPT_BOOT_IMG_AND_SYSTEM_SERVER_ONLY := false" >> BoardConfig.mk;
			echo "Enabled full dexpreopt for $1";
		else
			echo "WITH_DEXPREOPT_BOOT_IMG_AND_SYSTEM_SERVER_ONLY := true" >> BoardConfig.mk;
			echo "Enabled core dexpreopt for $1";
		fi;
	fi;
	cd "$DOS_BUILD_BASE";
}
export -f enableDexPreOpt;

enableLowRam() {
	cd "$DOS_BUILD_BASE$1";
	if [ -f lineage_$2.mk ]; then echo -e '\n$(call inherit-product, vendor/divested/build/target/product/lowram.mk)' >> lineage_$2.mk; fi;
	if [ -f BoardConfig.mk ]; then echo 'MALLOC_SVELTE := true' >> BoardConfig.mk; fi;
	if [ -f BoardConfigCommon.mk ]; then echo 'MALLOC_SVELTE := true' >> BoardConfigCommon.mk; fi;
	echo "Enabled lowram for $1";
	cd "$DOS_BUILD_BASE";
}
export -f enableLowRam;