#!/bin/bash

set -eux

install_x86_64() {
  local -a targets
  targets=(x86_64-unknown-linux-{gnu,musl} x86_64-linux-android)

  rustup target add "${targets[@]}" --toolchain stable
  rustup target add "${targets[@]}" --toolchain 1.38.0
}

install_x86() {
  local -a targets
  targets=(i{5,6}86-unknown-linux-{gnu,musl} i686-linux-android)

  rustup target add "${targets[@]}" --toolchain stable
  rustup target add "${targets[@]}" --toolchain 1.38.0
}

install_arm() {
  local -a targets
  targets=(
    {arm,armv7}-unknown-linux-{gnu,musl}eabi{,hf}
    armv5te-unknown-linux-{gnu,musl}eabi
    thumbv7neon-{unknown-linux-gnueabihf,linux-androideabi}
    armv7-linux-androideabi
  )

  rustup target add "${targets[@]}" arm-linux-androideabi --toolchain stable
  rustup target add "${targets[@]}" --toolchain 1.38.0
}

install_aarch64() {
  local -a targets
  targets=(aarch64-unknown-linux-{gnu,musl} aarch64-linux-android)

  rustup target add "${targets[@]}" --toolchain stable
  rustup target add "${targets[@]}" --toolchain 1.38.0
}

install_riscv64() {
  rustup target add riscv64gc-unknown-linux-gnu --toolchain stable
  rustup target add riscv64gc-unknown-linux-gnu --toolchain 1.42.0
}

install_loongarch64() {
  rustup target add loongarch64-unknown-linux-gnu --toolchain nightly
}

install_powerpc() {
  rustup target add powerpc-unknown-linux-gnu --toolchain stable
  rustup target add powerpc-unknown-linux-gnu --toolchain 1.38.0
}

install_powerpc64() {
  local -a targets
  targets=(powerpc64{,le}-unknown-linux-gnu)

  rustup target add "${targets[@]}" --toolchain stable
  rustup target add "${targets[@]}" --toolchain 1.38.0
}

install_mips() {
  local -a targets
  targets=(mips{,el}-unknown-linux-{gnu,musl})

  rustup target add "${targets[@]}" --toolchain stable
  rustup target add "${targets[@]}" --toolchain 1.38.0
}

install_mips64() {
  local -a targets
  targets=(mips64{,el}-unknown-linux-{gnu,musl}abi64)

  rustup target add "${targets[@]}" --toolchain stable
  rustup target add "${targets[@]}" --toolchain 1.40.0
}

install_s390x() {
  local -a targets

  rustup target add s390x-unknown-linux-gnu --toolchain stable
  rustup target add s390x-unknown-linux-gnu --toolchain 1.38.0
}

if [ $# -eq 0 ]; then
  set -- arm loongarch64 x86_64 x86 aarch64 riscv64 powerpc powerpc64 mips \
    mips64 s390x
fi

while [ $# -ne 0 ]; do
  "install_$1"
  shift
done