zsh/lib/gpg.zsh

   1 #
   2 # Provides for an easier use of GPG by setting up gpg-agent.
   3 #
   4 # Authors:
   5 #   Sorin Ionescu <sorin.ionescu@gmail.com>
   6 #
   7
   8 # Return if requirements are not found.
   9 if (( ! $+commands[gpg-agent] )); then
  10   return 1
  11 fi
  12
  13 # Set the default paths to gpg-agent files.
  14 _gpg_agent_conf="$XDG_CONFIG_HOME/gnupg/gpg-agent.conf"
  15 _gpg_agent_env="$XDG_CACHE_HOME/gpg-agent-info"
  16
  17 # Start gpg-agent if not started.
  18 if ! ps -U "$USER" -o ucomm | grep -q gpg-agent; then
  19   eval "$(gpg-agent --daemon --write-env-file "$_gpg_agent_env")"
  20 else
  21   # Export environment variables.
  22   source "$_gpg_agent_env" 2> /dev/null
  23 fi
  24
  25 # Inform gpg-agent of the current TTY for user prompts.
  26 export GPG_TTY="$(tty)"
  27
  28 # Clean up.
  29 unset _gpg_agent_{conf,env}
  30
  31 # Disable GUI prompts inside SSH.
  32 if [[ -n "$SSH_CONNECTION" ]]; then
  33   export PINENTRY_USER_DATA='USE_CURSES=1'
  34 fi