Remove double ssh agent usage, add gpg-agent.

.zshrc

@@ -135,29 +135,19 @@ if [ -f $HOME/.exports ]; then
    source $HOME/.exports
 fi
 
+# Set GPG TTY
+export GPG_TTY=$(tty)
+# Refresh gpg-agent tty in case user switches into an X session
+gpg-connect-agent updatestartuptty /bye >/dev/null
+# Set SSH to use gpg-agent
+unset SSH_AGENT_PID
+if [ "${gnupg_SSH_AUTH_SOCK_by:-0}" -ne $$ ]; then
+  export SSH_AUTH_SOCK="$(gpgconf --list-dirs agent-ssh-socket)"
+fi
+# Start the gpg-agent if not already running
+if ! pgrep -x -u "${USER}" gpg-agent >/dev/null 2>&1; then
+  gpg-connect-agent /bye >/dev/null 2>&1
+fi
+
 # To customize prompt, run `p10k configure` or edit ~/.p10k.zsh.
 [[ ! -f ~/.p10k.zsh ]] || source ~/.p10k.zsh
-
-# ssh agent set up
-# Requires your user to have write privileges in .ssh.
-env=~/.ssh/agent.env
- 
-agent_load_env () { test -f "$env" && . "$env" >| /dev/null ; }
- 
-agent_start () {
-    (umask 077; ssh-agent >| "$env")
-    . "$env" >| /dev/null ; }
- 
-agent_load_env
- 
-# agent_run_state: 0=agent running w/ key; 1=agent w/o key; 2= agent not running
-agent_run_state=$(ssh-add -l >| /dev/null 2>&1; echo $?)
- 
-if [ ! "$SSH_AUTH_SOCK" ] || [ $agent_run_state = 2 ]; then
-    agent_start
-    ssh-add
-elif [ "$SSH_AUTH_SOCK" ] && [ $agent_run_state = 1 ]; then
-    ssh-add
-fi
- 
-unset env