[zsh] Convert zprofile to do_init_functions

zprofile

@@ -1,26 +1,11 @@
 #!/usr/bin/env zsh
 # Eryn Wells <eryn@erynwells.me>
 
-# Start SSH agent for password-less logins
-if [ -z "$SSH_AUTH_SOCK" -a -x "$SSHAGENT" ]; then
-    if ! pgrep -u $USER ssh-agent 1>/dev/null; then
-        eval $(ssh-agent -s > ~/.ssh_agent_vars)
-        trap "kill $SSH_AGENT_PID" 0
-    else
-        eval $(cat ~/.ssh_agent_vars)
-    fi
-fi
+zsh_init_profile_functions=( \
+    connect_ssh_agent \
+    init_profile_$SYS \
+    list_tmux_sessions \
+)
 
-autoload -Uz list_tmux_sessions
-autoload -Uz binary_exists
+do_init_functions zsh_init_profile_functions
 
-if binary_exists sw_vers && binary_exists lolcat; then
-    case $SYS in
-        darwin)
-            print "It's `date +'%H:%M on %A, %B %d'`.\nThis machine is a $HWMODEL.\nYou're running macOS $OSVERSION.\n" | lolcat
-            ;;
-        *) ;;
-    esac
-fi
-
-list_tmux_sessions