test.sh

#!/bin/bash
set -ex

docker_build() {
  echo "Target dir: $TARGET_DIR"
  echo "Platform: $PLATFORM"

  # NB: add -vv to cargo build when debugging
  local -r crate="$1"crate
  docker run --rm \
    -v "$PWD/test/${crate}:/volume" \
    -v cargo-cache:/root/.cargo/registry \
    -e RUST_BACKTRACE=1 \
    -e AR=ar \
    --platform "${PLATFORM}" \
    rustmusl-temp \
    cargo build

  cd "test/${crate}"

  # Ideally we would use `ldd` but due to a qemu bug we can't :(
  # See https://github.com/multiarch/qemu-user-static/issues/172
  # Instead we use `file`.
  docker run --rm \
    -v "$PWD:/volume" \
    -e RUST_BACKTRACE=1 \
    --platform "${PLATFORM}" \
    test-runner \
    bash -c "cd volume; ./target/$TARGET_DIR/debug/${crate} && file ./target/$TARGET_DIR/debug/${crate} && file /volume/target/$TARGET_DIR/debug/${crate} 2>&1 | grep -qE 'static-pie linked|statically linked' && echo ${crate} is a static executable"
}

# Helper to check how ekidd/rust-musl-builder does it
docker_build_ekidd() {
  local -r crate="$1"crate
  docker run --rm \
    -v "$PWD/test/${crate}:/home/rust/src" \
    -v cargo-cache:/home/rust/.cargo \
    -e RUST_BACKTRACE=1 \
    -it ekidd/rust-musl-builder:nightly \
    cargo build -vv
  cd "test/${crate}"
  ./target/x86_64-unknown-linux-musl/debug/"${crate}"
  ldd "target/x86_64-unknown-linux-musl/debug/${crate}" 2>&1 | grep -qE "not a dynamic|statically linked" && \
    echo "${crate} is a static executable"
}

# Helper to check how golddranks/rust_musl_docker does it
docker_build_golddranks() {
  local -r crate="$1"crate
  docker run --rm \
    -v "$PWD/test/${crate}:/workdir" \
    -e RUST_BACKTRACE=1 \
    -it golddranks/rust_musl_docker:nightly-2017-10-03 \
    cargo build -vv --target=x86_64-unknown-linux-musl
  cd "test/${crate}"
  ./target/x86_64-unknown-linux-musl/debug/"${crate}"
  ldd "target/x86_64-unknown-linux-musl/debug/${crate}" 2>&1 | grep -qE "not a dynamic|statically linked" && \
    echo "${crate} is a static executable"
}

docker_build "$1"