sof/zephyr/docker-build.sh

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#!/bin/sh
# SPDX-License-Identifier: BSD-3-Clause
# Copyright(c) 2021 Intel Corporation. All rights reserved.
# "All problems can be solved by another level of indirection"
# Ideally, this script would not be needed.
#
# Minor adjustments to the docker image provided by the Zephyr project.
set -e
set -x
unset ZEPHYR_BASE
# Make sure we're in the right place
test -e ./scripts/xtensa-build-zephyr.py
# See https://stackoverflow.com/questions/35291520/docker-and-userns-remap-how-to-manage-volume-permissions-to-share-data-betwee + many others
exec_as_sof_uid()
{
local sof_uid; sof_uid="$(stat --printf='%u' .)"
local current_uid; current_uid="$(id -u)"
if test "$current_uid" = "$sof_uid"; then
return 0
fi
# Add new container user matching the host user owning the SOF
# checkout
local sof_user; sof_user="$(id "$sof_uid")" || {
sof_user=sof_zephyr_docker_builder
local sof_guid; sof_guid="$(stat --printf='%g' .)"
getent group "$sof_guid" ||
sudo groupadd -g "$sof_guid" sof_zephyr_docker_group
sudo useradd -m -u "$sof_uid" -g "$sof_guid" "$sof_user"
local current_user; current_user="$(id -un)"
# Copy sudo permissions just in case the build needs it
sudo sed -e "s/$current_user/$sof_user/" /etc/sudoers.d/"$current_user" |
sudo tee -a /etc/sudoers.d/"$sof_user"
sudo chmod --reference=/etc/sudoers.d/"$current_user" \
/etc/sudoers.d/"$sof_user"
}
# Safety delay: slower infinite loops are much better
sleep 0.5
# Double sudo to work around some funny restriction in
# zephyr-build:/etc/sudoers: 'user' can do anything but... only as
# root.
sudo sudo -u "$sof_user" "$0" "$@"
exit "$?"
}
exec_as_sof_uid "$@"
# Work in progress: move more code to a function
# https://github.com/thesofproject/sof-test/issues/740
# As of container version 0.18.4,
# https://github.com/zephyrproject-rtos/docker-image/blob/master/Dockerfile
# installs two SDKs: ZSDK_VERSION=0.12.4 and ZSDK_ALT_VERSION=0.13.1
# ZEPHYR_SDK_INSTALL_DIR points at ZSDK_VERSION but we want the latest.
unset ZEPHYR_SDK_INSTALL_DIR
# Zephyr's CMake does not look in /opt but it searches $HOME
ls -ld /opt/toolchains/zephyr-sdk-*
ln -s /opt/toolchains/zephyr-sdk-* ~/
if test -e zephyrproject; then
./scripts/xtensa-build-zephyr.py "$@"
else # -c(lone) with west init etc.
./scripts/xtensa-build-zephyr.py -c "$@"
fi