ruby-package fetch --check

set -e

usage() {

  echo "usage: ruby-package fetch PACKAGE" >&2

  echo "usage: ruby-package fetch [--check] PACKAGE" >&2

  exit 1

}

if [ -z "$1" ]; then

  usage

fi

package_name="${1}.$(ruby-package platform).rubypackage"

check() {

  local url="$1"

package_repo="${RUBY_PACKAGE_REPO%/}"

if [ -z "$ruby_package_repo" ]; then

  package_repo="https://github.com/downloads/sstephenson/ruby-packages"

  set +e

  curl -ILfs "$url" >/dev/null

  local result="$?"

  set -e

  if [ "$result" -ne 0 ]; then

    return 1

  fi

}

url="${package_repo}/${package_name}"

filename="${TMPDIR}/${package_name}.$$"

download() {

  local url="$1"

  local filename="$2"

  set +e

  curl -Lfs "$url" > "$filename"

result="$?"

  local result="$?"

  set -e

if [ "$result" -eq 22 ]; then

  exit 3

  if [ "$result" -ne 0 ]; then

    return 1

  elif [ ! -f "$filename" ]; then

  exit 2

    return 1

  else

    echo "$filename"

  fi

}

check=""

if [ "$1" = "--check" ]; then

  check=1

  shift

fi

package="$1"

if [ -z "$package" ]; then

  usage

fi

package_name="${package}.$(ruby-package platform).rubypackage"

package_repo="${RUBY_PACKAGE_REPO%/}"

if [ -z "$ruby_package_repo" ]; then

  package_repo="https://github.com/downloads/sstephenson/ruby-packages"

fi

package_url="${package_repo}/${package_name}"

if [ -n "$check" ]; then

  check "$package_url" || {

    echo "error: package \`$package' not found ($package_url)"

    exit 1

  } >&2

else

  package_filename="${TMPDIR}/${package_name}.$$"

  download "$package_url" "$package_filename" || {

    echo "error: couldn't fetch package \`$package' ($package_url)"

    exit 1

  } >&2

fi