From: Michael Prokop <mika@grml.org>
Date: Mon, 3 Feb 2014 13:49:34 +0000 (+0100)
Subject: zshrc: check for DIRSTACK{SIZE,FILE} in chpwd()
X-Git-Tag: v0.9.3~1
X-Git-Url: http://git.grml.org/?p=grml-etc-core.git;a=commitdiff_plain;h=85825da48abac0bf3426f42dad5aa5a01c4d42c3

zshrc: check for DIRSTACK{SIZE,FILE} in chpwd()

If the environment variables are unset chpwd emmits an
error message, so check before using.

Thanks: Frank Terbeck <ft@grml.org> for review
---

diff --git a/etc/zsh/zshrc b/etc/zsh/zshrc
index bd8ab85..1af7ed7 100644
--- a/etc/zsh/zshrc
+++ b/etc/zsh/zshrc
@@ -1556,6 +1556,7 @@ if [[ -f ${DIRSTACKFILE} ]] && [[ ${#dirstack[*]} -eq 0 ]] ; then
 fi
 
 chpwd() {
+    if (( $DIRSTACKSIZE <= 0 )) || [[ -z $DIRSTACKFILE ]]; then return; fi
     local -ax my_stack
     my_stack=( ${PWD} ${dirstack} )
     if is42 ; then