Frank Terbeck: 27353: more VCS_Info sanity checks

Functions/VCS_Info/VCS_INFO_bydir_detect

@@ -8,6 +8,7 @@ local basedir="." realbasedir
 
 realbasedir="$(VCS_INFO_realpath ${basedir})"
 while [[ ${realbasedir} != '/' ]]; do
+    [[ -r ${realbasedir} ]] || return 1
     if [[ -n ${vcs_comm[detect_need_file]} ]] ; then
         [[ -d ${basedir}/${dirname} ]] && \
         [[ -e ${basedir}/${dirname}/${vcs_comm[detect_need_file]} ]] && \

Functions/VCS_Info/vcs_info

@@ -41,6 +41,8 @@ vcs_info () {
     emulate -L zsh
     setopt extendedglob
 
+    [[ -r . ]] || return 0
+
     local pat
     local -i found
     local -a enabled disabled dps