Download latest terragrunt binary

terragrunt-get.sh

#!/bin/sh
set -e

RELEASES_URL="https://github.com/gruntwork-io/terragrunt/releases"
test -z "$TMPDIR" && TMPDIR="$(mktemp -d)"
BIN_FILE="$TMPDIR/terragrunt"

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

download() {
  test -z "$VERSION" && VERSION="$(last_version)"
  test -z "$VERSION" && {
    echo "Unable to get terragrunt version." >&2
    exit 1
  }
  rm -f "$BIN_FILE"
  OS=$(uname -s | tr '[:upper:]' '[:lower:]')
  ARC=$([ "$(uname -m)" = "x86_64" ] && echo "amd64" || echo "386")

  curl -s -L -o "$BIN_FILE" \
    "$RELEASES_URL/download/$VERSION/terragrunt_${OS}_${ARC}"
}

download
chmod +x "${BIN_FILE}"
"${BIN_FILE}" --version