#!/bin/bash

mode="$1"

if [ "$TRAVIS_RUST_VERSION" != "nightly" ] && [ "$RUSTUP_NIGHTLY" != "yes" ]; then
  exit 0
fi

CARGO="cargo"

if [ "$RUSTUP_NIGHTLY" = "yes" ]; then
  CARGO="rustup run nightly cargo"
fi


if [ "$mode" = "install" ]; then
  # Test if clippy is already installed (cache)
  $CARGO clippy &> /dev/null
  if [ $? -ne 101 ]; then
    exit 0
  fi

  $CARGO install clippy --verbose
  exit $?
elif [ "$mode" = "test" ]; then
  $CARGO clippy --verbose -- -D warnings
  exit $?
else
  echo "Mode not specified or unknown" >&2
  exit 1
fi