Bash function to copy kernel artifacts to AOSP device project

copykernel.source

#!/bin/bash

##############
## WARNING: This script uses `rm -rf` with variables, make sure you know what it's doing before running it
## and don't hold me accountable if you accidentally delete important stuff.
## Whilst I have tested it, your setup will be different and you should edit this to match.
## See more details at the bottom.

ANDROID_MAINLINE_DIR="/PATH/TO/AOSP/SOURCE"

# $1: vendor
# $2: device
# $3: optional kernel dir
function copymainlinekernel() {
	VENDOR="$1"
	DEVICE="$2"
	DEVICE_KERNEL=${3:-$DEVICE/prebuilt-kernel}
	
	_ANDROID_PREBUILT_KERNEL_DIR="$ANDROID_MAINLINE_DIR/device/$VENDOR/$DEVICE_KERNEL/android-mainline"
	echo $_ANDROID_PREBUILT_KERNEL_DIR
	[[ -z "$_ANDROID_PREBUILT_KERNEL_DIR" ]] && echo "_ANDROID_PREBUILT_KERNEL_DIR not found" && return

	rm -rf --interactive=never "$ANDROID_MAINLINE_DIR/out/target/product/$DEVICE/ramdisk/lib/modules/*" && \
	rm -rf --interactive=never "$_ANDROID_PREBUILT_KERNEL_DIR"/*
	find $KERNEL_OUTDIR/modules/ -type f -name "*.ko" -exec cp {} "$_ANDROID_PREBUILT_KERNEL_DIR/" \; && \
	cp -v $KERNEL_OUTDIR/arch/arm64/boot/Image.gz "$_ANDROID_PREBUILT_KERNEL_DIR/" && \

  # For non-sdm845 devices this will need to be changed
	cp -v $KERNEL_OUTDIR/arch/arm64/boot/dts/qcom/sdm845-*.dtb "$_ANDROID_PREBUILT_KERNEL_DIR/" && \
	echo "Copied kernel and modules to android-mainline"
}

# Example
# copymainlinekernel linaro dragonboard dragonboard-kernel # copies to device/linaro/dragonboard-kernel/android-mainline
# copymainlinekernel generic sdm845  # copies to device/generic/sdm845/prebuilt-kernel/android-mainline
#
# This script is designed to be hacked on, it probably won't work out of the box.