# HG changeset patch
# User Augie Fackler <raf@durin42.com>
# Date 1457655143 18000
# Node ID 491cd0cedeeef01c7dde3e83939462b4ff21e493
# Parent  e84b6da69ea09b50d8a5cbb4c4232d861baa3a4d
prompt: use async.zsh to avoid weird disowned process jank

diff --git a/.shell.d/99.prompt.zsh b/.shell.d/99.prompt.zsh
--- a/.shell.d/99.prompt.zsh
+++ b/.shell.d/99.prompt.zsh
@@ -21,21 +21,18 @@ preexec () {
 PROMPT_TMP="${HOME}/.augie-zsh-tmp-prompt"
 
 function right_side_prompt() {
+    cd $1
     branch=`vcs_current_branch`
     if [ $? = 0 ] ; then
-        echo -n $branch > "$PROMPT_TMP"
-        kill -s USR1 $$
+        print $branch
     fi
 }
 
-function TRAPUSR1() {
-    rps_branch=$(cat "$PROMPT_TMP")
-    zle && zle reset-prompt
-}
-
-function precmd () {
-    rps_branch="$(date '+%D %H:%M')"
-    right_side_prompt &!
+function right_prompt_results() {
+    if [ $2 = 0 ] ; then
+        rps_branch=$3
+        zle && zle reset-prompt
+     fi
 }
 
 if [ "x`whoami`" = "xroot" ] ; then
@@ -72,8 +69,16 @@ if [[ $TERM == "dumb" ]]; then  # in ema
     unsetopt zle
     unsetopt prompt_cr
     unsetopt prompt_subst
-    unfunction precmd
     unfunction preexec
+else
+    autoload -Uz async && async
+    async_start_worker durin42_prompt -u -n
+    async_register_callback durin42_prompt right_prompt_results
+
+    function precmd () {
+        rps_branch="$(date '+%D %H:%M')"
+        async_job durin42_prompt right_side_prompt $PWD
+    }
 fi