run_tests.sh

#!/usr/bin/env bash
#
# Regenerates build files and runs tests on them.
# Please use this to validate your pull requests!
#

set -Eeuo pipefail

top="$(dirname "$0")"
top="$(cd "$top"; pwd)"

if [ -z "${IN_CRATE2NIX_SHELL:-}" ] || [ "${IN_NIX_SHELL:-}" = "impure" ]; then
  export CACHIX
  CACHIX="$(which cachix 2>/dev/null || echo "")"
  echo -e "\e[1m=== Entering $top/shell.nix\e[0m" >&2
  exec nix-shell --keep CACHIX --pure "$top/shell.nix" --run "$(printf "%q " "$0" "$@")"
fi

echo -e "\e[1m=== Parsing opts for $top/run_tests.sh\e[0m" >&2
options=$(getopt -o '' --long offline,build-test-nixpkgs:,no-cargo-build  -- "$@") || {
    echo "" >&2
    echo "Available options:" >&2
    echo "   --offline            Enable offline friendly operations with out substituters" >&2
    echo "   --build-test-nixpkgs Path to nixpkgs used for the build tests." >&2
    echo "   --no-cargo-build     Skip local cargo build." >&2
    exit 1
}
eval set -- "$options"
NIX_OPTIONS=( --option log-lines 100 --show-trace )
REGENERATE_OPTIONS=()
NIX_TESTS_OPTIONS=( --out-link ./target/nix-result )
NO_CARGO_BUILD=""
while true; do
    case "$1" in
    --no-cargo-build)
        REGENERATE_OPTIONS+=( --no-cargo-build )
        NO_CARGO_BUILD="1"
        ;;
    --offline)
        NIX_OPTIONS+=( --option substitute false )
        REGENERATE_OPTIONS+=( --offline )
        CACHIX=""
        ;;
    --build-test-nixpkgs)
        shift
        NIX_TESTS_OPTIONS+=( --arg buildTestNixpkgs "$1" )
        ;;
    --)
        shift
        break
        ;;
    esac
    shift
done

# Add other files when we adopt nixpkgs-fmt for them.
cd "$top"
echo -e "\e[1m=== Reformatting nix code\e[0m" >&2
./nixpkgs-fmt.sh \
    ./{,nix/}{,*/}*.nix \
    ./crate2nix/templates/nix/crate2nix/{*.nix,tests/*.nix} \
    ./sample_projects/*/[[:lower:]]*.nix
cd "$top"/crate2nix
echo "=== Reformatting rust code" >&2
../cargo.sh fmt

cd "$top"
echo -e "\e[1m=== Running nix unit tests\e[0m" >&2
./nix-test.sh ./crate2nix/templates/nix/crate2nix/tests/default.nix || {
    echo "" >&2
    echo "==================" >&2
    echo "$top/nix-test.sh $top/crate2nix/templates/nix/crate2nix/tests/default.nix: FAILED" >&2
    exit 1
}

cd "$top"/crate2nix
echo -e "\e[1m=== Running cargo clippy\e[0m" >&2
if [ -z "${NO_CARGO_BUILD}" ]; then
    ../cargo.sh clippy || {
        echo "==================" >&2
        echo "$top/cargo.sh clippy: FAILED" >&2
        exit 2
    }
else
    echo "Skipping because of --no-cargo-build"
fi

../regenerate_cargo_nix.sh "${REGENERATE_OPTIONS[@]}" || {
    echo "==================" >&2
    echo "$top/regenerate_cargo_nix.sh ${REGENERATE_OPTIONS[*]}: FAILED" >&2
    exit 3
}

echo -e "\e[1m=== Running cargo test\e[0m" >&2
if [ -z "${NO_CARGO_BUILD}" ]; then
    ../cargo.sh test || {
        echo "==================" >&2
        echo "$top/cargo.sh test: FAILED" >&2
        exit 4
    }
else
    echo "Skipping because of --no-cargo-build"
fi

cd "$top"
echo -e "\e[1m=== Building ./tests.nix (= Running Integration Tests)\e[0m" >&2
rm -rf target/nix-result*
nix build -L "${NIX_OPTIONS[@]}" "${NIX_TESTS_OPTIONS[@]}" -f ./tests.nix || {
    echo "==================" >&2
    echo "cd $top" >&2
    echo "nix build -L \\" >&2
    echo "  ${NIX_OPTIONS[*]} ${NIX_TESTS_OPTIONS[*]} \\" >&2
    echo "   -f ./tests.nix"
    echo "=> FAILED" >&2
    exit 5
}

echo -e "\e[1m=== Checking for uncomitted changes\e[0m" >&2
if test -n "$(git status --porcelain)"; then
    echo ""
    git --no-pager diff HEAD
    echo ""
    git --no-pager diff --stat HEAD
    echo ""
    git status --porcelain
    echo ""
    echo "!!! repository has uncomitted changes" >&2
    echo "Otherwise, things look good :)"
    exit 6
fi

# Crude hack: check if we have the right to push to the cache
cd "$top"
if test -n "${CACHIX:-}" && test -r ~/.config/cachix/cachix.dhall &&\
 grep -q '"eigenvalue"' ~/.config/cachix/cachix.dhall; then
    echo -e "\e[1m=== Pushing artifacts to eigenvalue.cachix.org \e[0m" >&2
    # we filter for "rust_" to exclude some things that are in the
    # nixos cache anyways
    nix-store -q -R --include-outputs "$(nix-store -q -d target/nix-result* | grep -v crates.io)" |\
     grep -e "-rust_" |\
     $CACHIX push eigenvalue
fi

echo -e "\e[1m=== SUCCESS (run_tests.sh) \e[0m" >&2