tweaks to gpg agent startup

such that we give up if the ~/.gnupg directory is not yet available
and silence the stdout a touch more.

bash_functions

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 function __available_projects(){
     /bin/ls $HOME/src | tr " " "\n"
 }
@@ -93,11 +95,12 @@ function get_ssh_agent(){
 
 
 function get_gpg_agent(){
+    readlink -f "$HOME/.gnupg" >/dev/null || return 0
     agent_out="$HOME/.gnupg/agent.out"
     tmp=$(mktemp /tmp/gnupgXXXX)
     gpg-agent $* > $tmp && mv $tmp $agent_out
 
-    grep GPG_TTY $agent_out || \
+    grep GPG_TTY $agent_out >/dev/null || \
         cat >> $agent_out <<EOF
 export GPG_TTY="$(tty)"
 EOF
@@ -154,5 +157,3 @@ function precmd(){
 function unhyphenate(){
     ruby -e "puts '$1'.gsub(/[\-_]/, ' ')"
 }
-
-# vim:filetype=sh