moonfire-nvr/docker/dev.bash

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#!/bin/bash
# This file is part of Moonfire NVR, a security camera network video recorder.
# Copyright (C) 2021 The Moonfire NVR Authors; see AUTHORS and LICENSE.txt.
# SPDX-License-Identifier: GPL-v3.0-or-later WITH GPL-3.0-linking-exception.
# Build the "dev" target. See Dockerfile.
set -o errexit
set -o pipefail
set -o xtrace
export DEBIAN_FRONTEND=noninteractive
packages=()
mkdir -p /docker-build-debug/dev
ls -laFR /var/cache/apt > /docker-build-debug/dev/var-cache-apt-before
if [[ "${BUILDARCH}" != "${TARGETARCH}" ]]; then
# Set up cross compilation.
case "${TARGETARCH}" in
arm64)
dpkg_arch=arm64
gcc_target=aarch64-linux-gnu
rust_target=aarch64-unknown-linux-gnu
target_is_port=1
;;
arm)
dpkg_arch=armhf
gcc_target=arm-linux-gnueabihf
rust_target=arm-unknown-linux-gnueabihf
target_is_port=1
;;
amd64)
dpkg_arch=amd64
gcc_target=x86_64-linux-gnu
rust_target=x86_64-unknown-linux-gnu
target_is_port=0
;;
*)
echo "Unsupported cross-compile target ${TARGETARCH}." >&2
exit 1
esac
apt_target_suffix=":${dpkg_arch}"
case "${BUILDARCH}" in
amd64|386) host_is_port=0 ;;
*) host_is_port=1 ;;
esac
time dpkg --add-architecture "${dpkg_arch}"
if [[ $target_is_port -ne $host_is_port ]]; then
# Ubuntu stores non-x86 architectures at a different URL, so futz the
# sources file to allow installing both host and target.
# See https://github.com/rust-embedded/cross/blob/master/docker/common.sh
perl -pi.bak -e '
s{^deb (http://.*.ubuntu.com/ubuntu/) (.*)}
{deb [arch=amd64,i386] \1 \2\ndeb [arch-=amd64,i386] http://ports.ubuntu.com/ubuntu-ports \2};
s{^deb (http://ports.ubuntu.com/ubuntu-ports/) (.*)}
{deb [arch=amd64,i386] http://archive.ubuntu.com/ubuntu \2\ndeb [arch-=amd64,i386] \1 \2}' \
/etc/apt/sources.list
cat /etc/apt/sources.list
fi
packages+=(
g++-${gcc_target}
libc6-dev-${dpkg_arch}-cross
pkg-config-${gcc_target}
qemu-user
)
fi
time apt-get update
# Install the packages for the target architecture.
packages+=(
ffmpeg"${apt_target_suffix}"
libavcodec-dev"${apt_target_suffix}"
libavformat-dev"${apt_target_suffix}"
libavutil-dev"${apt_target_suffix}"
libncurses-dev"${apt_target_suffix}"
libsqlite3-dev"${apt_target_suffix}"
)
time apt-get update
time apt-get install --assume-yes --no-install-recommends "${packages[@]}"
# Set environment variables for cross-compiling.
# Also set up a symlink that points to the release binary, because the
# release binary's location varies when cross-compiling, as described here:
# https://doc.rust-lang.org/cargo/guide/build-cache.html
if [[ -n "${rust_target}" ]]; then
su moonfire-nvr -lc "rustup target install ${rust_target} &&
ln -s target/${rust_target}/release/moonfire-nvr ."
underscore_rust_target="${rust_target//-/_}"
uppercase_underscore_rust_target="${underscore_rust_target^^}"
cat >> /var/lib/moonfire-nvr/.buildrc <<EOF
# https://doc.rust-lang.org/cargo/reference/config.html
export CARGO_BUILD_TARGET=${rust_target}
export CARGO_TARGET_${uppercase_underscore_rust_target}_LINKER=${gcc_target}-gcc
# https://github.com/rust-lang/pkg-config-rs uses the "PKG_CONFIG"
# variable to to select the pkg-config binary to use. As of pkg-config 0.3.19,
# it unfortunately doesn't understand the <target>_ prefix that the README.md
# describes for other vars. Fortunately Moonfire NVR doesn't have any host tools
# that need pkg-config.
export PKG_CONFIG=${gcc_target}-pkg-config
# https://github.com/alexcrichton/cc-rs uses these variables to decide what
# compiler to invoke.
export CC_${underscore_rust_target}=${gcc_target}-gcc
export CXX_${underscore_rust_target}=${gcc_target}-g++
EOF
else
su moonfire-nvr -lc "ln -s target/release/moonfire-nvr ."
fi
ls -laFR /var/cache/apt > /docker-build-debug/dev/var-cache-apt-after