use

#!/bin/sh
# Usege:
#
#   source <(curl https://raw.githubusercontent.com/k1LoW/sheer-heart-attack/master/use)
#
# Reference:
#   https://github.com/goreleaser/get
SHA_GOOS=linux
SHA_EXT=tar.gz
SHA_ARCH=amd64
if test $(uname -m) = "arm64"
then
  SHA_ARCH=arm64
elif test $(uname -m) = "aarch64"
then
  SHA_ARCH=arm64
fi

if test $(uname -s) = "Darwin"
then
  SHA_GOOS=darwin
  SHA_EXT=zip
fi
SHA_RELEASES_URL="https://github.com/k1LoW/sheer-heart-attack/releases"
test -z "$SHA_TMPDIR" && SHA_TMPDIR="$(mktemp -d)"
SHA_ARCHIVE="${SHA_TMPDIR}sheer-heart-attack.${SHA_EXT}"

last_version() {
  curl -sL -o /dev/null -w %{url_effective} "$SHA_RELEASES_URL/latest" |
    rev |
    cut -f1 -d'/'|
    rev
}

download() {
  test -z "$SHA_VERSION" && SHA_VERSION="$(last_version)"
  test -z "$SHA_VERSION" && {
    echo "Unable to get sheer-heart-attack version." >&2
    exit 1
  }
  rm -f "$SHA_ARCHIVE"
  curl -s -L -o "$SHA_ARCHIVE" \
    "${SHA_RELEASES_URL}/download/${SHA_VERSION}/sheer-heart-attack_${SHA_VERSION}_${SHA_GOOS}_${SHA_ARCH}.${SHA_EXT}"
}

download
if test ${SHA_EXT} = "tar.gz"
then
  tar -xf "$SHA_ARCHIVE" -C "$SHA_TMPDIR"
elif test ${SHA_EXT} = "zip"
then
  unzip -qo "$SHA_ARCHIVE" -d "$SHA_TMPDIR"
fi
export PATH=${SHA_TMPDIR}:$PATH
echo -e '\e[36mYou can use `sheer-heart-attack` command in this session.\e[m'