moonfire-nvr/docker/dev.bash
Scott Lamb dd66c7b0dd restructure into "server" and "ui" subdirs
Besides being more clear about what belongs to which, this helps with
docker caching. The server and ui parts are only rebuilt when their
respective subdirectories change.

Extend this a bit further by making the webpack build not depend on
the target architecture. And adding cache dirs so parts of the server
and ui build process can be reused when layer-wide caching fails.
2021-01-22 22:01:17 -08:00

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#!/bin/bash
# Build the "dev" target. See Dockerfile.
set -o errexit
set -o pipefail
set -o xtrace
export DEBIAN_FRONTEND=noninteractive
packages=()
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 "${BUILDARCH}" in
amd64|386) host_is_port=0 ;;
*) host_is_port=1 ;;
esac
dpkg --add-architecture "${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
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}"
)
apt-get update
apt-get install --assume-yes --no-install-recommends "${packages[@]}"
apt-get clean
rm -rf /var/lib/apt/lists/*
# Set environment variables for cross-compiling.
# Also set up a symlink that points to the release binary, because the
# release binary's location varies when cross-compiling, as described here:
# https://doc.rust-lang.org/cargo/guide/build-cache.html
if [[ -n "${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