Add comment for "autoenv_debug: fix error with Zsh 5.0.5"

[zsh-autoenv.git] / autoenv.zsh

diff --git a/autoenv.zsh b/autoenv.zsh
index e448dcefa381990200574fdb1df929259f24deba..7b6d8da04038632136792d4924f933915e1ea603 100644 (file)
--- a/autoenv.zsh
+++ b/autoenv.zsh
@@ -48,7 +48,9 @@ fi
 # This is useful if you want to use a base .autoenv.zsh file for a directory
 # subtree.
 autoenv_source_parent() {
-  local parent_env_file=$(_autoenv_get_file_upwards ${autoenv_env_file:h})
+  local look_until=${1:-/}
+  local parent_env_file=$(_autoenv_get_file_upwards \
+    ${autoenv_env_file:h} ${AUTOENV_FILE_ENTER} $look_until)
 
   if [[ -n $parent_env_file ]] \
     && _autoenv_check_authorized_env_file $parent_env_file; then
@@ -138,7 +140,7 @@ _autoenv_stack_entered_contains() {
 
 # Internal function for debug output. {{{
 _autoenv_debug() {
-  local msg=$1
+  local msg="$1"  # Might trigger a bug in Zsh 5.0.5 with shwordsplit.
   local level=${2:-1}
   if [[ $AUTOENV_DEBUG -lt $level ]]; then
     return
@@ -273,6 +275,7 @@ _autoenv_source() {
 _autoenv_get_file_upwards() {
   local look_from=${1:-$PWD}
   local look_for=${2:-$AUTOENV_FILE_ENTER}
+  local look_until=${${3:-/}:A}
 
   # Manually look in parent dirs. An extended Zsh glob should use Y1 for
   # performance reasons, which is only available in zsh-5.0.5-146-g9381bb6.
@@ -290,6 +293,9 @@ _autoenv_get_file_upwards() {
       break
     fi
 
+    if [[ $parent_dir == $look_until ]]; then
+      break
+    fi
     last=$parent_dir
     parent_dir="${parent_dir}/.."
   done