setup-gopass

#!/usr/bin/env bash

set -euo pipefail

command_exists() {
  type "${1}" >/dev/null 2>&1
}

ensure_tool() {
  local -r tool="${1}"
  if ! command_exists "${tool}"; then
    echo "missing required tool: ${tool}"
    exit 1
  fi
}

setup_for_darwin() {
  ensure_tool brew

  brew install gopass
}

setup_for_debian() {
  ensure_tool curl
  ensure_tool dpkg
  ensure_tool jq
  ensure_tool wget

  local -r repo="gopasspw/gopass"
  local -r url_pattern="linux_amd64.deb"
  local -r url=$(curl -s "https://api.github.com/repos/${repo}/releases/latest" | jq -r --arg pattern "${url_pattern}" '.assets | map(.browser_download_url) | map(select(. | test($pattern)))[0]')
  local -r filename=$(basename "${url}")

  echo "Downloading..."
  curl --progress-bar --continue-at - --output "/tmp/${filename}" -L "${url}"
  echo

  echo "Installing..."
  sudo dpkg --install "/tmp/${filename}"
  echo

  echo "Done!"
}

case $OSTYPE in
  darwin*)
    setup_for_darwin;;
  linux*)
    if command_exists dpkg; then
      setup_for_debian
    fi
    ;;
  *)
    echo "Unknown OS!"
    exit 1;;
esac