Merge branch 'allow-disable'

Closes: #20

diff --combined autoenv.zsh
index c569ef813294372b3a467db7a5996d8e79dc4b1a,d4cd642d48e397f0767b1268d501ace6156d7fbf..24f4b04481ca7735a9ef1286fcecf36bacef3efb
--- 1/autoenv.zsh
--- 2/autoenv.zsh
+++ b/autoenv.zsh
@@@ -21,6 -21,9 +21,9 @@@ export AUTOENV_ENV_FILENAME=$HOME/.env_
  # Enable debugging. Multiple levels are supported (max 2).
  : ${AUTOENV_DEBUG:=0}
  
+ # (Temporarily) disable zsh-autoenv. This gets looked at in the chpwd handler.
+ : ${AUTOENV_DISABLED:=0}
+ 
  # Public helper functions, which can be used from your .env files:
  #
  # Source the next .env file from parent directories.
@@@ -74,24 -77,11 +77,24 @@@ _autoenv_stack_entered_remove() 
  }
  
  # Is the given entry already in the stack?
 +# This checks for the env_file ($1) as-is and with symlinks resolved.
  _autoenv_stack_entered_contains() {
    local env_file=$1
 +  local f i
    if (( ${+_autoenv_stack_entered[(r)${env_file}]} )); then
      # Entry is in stack.
 -    if [[ $_autoenv_stack_entered_mtime[$env_file] == $(_autoenv_get_file_mtime $env_file) ]]; then
 +    f=$env_file
 +  else
 +    for i in $_autoenv_stack_entered; do
 +      if [[ ${i:A} == ${env_file:A} ]]; then
 +        # Entry is in stack (compared with resolved symlinks).
 +        f=$i
 +        break
 +      fi
 +    done
 +  fi
 +  if [[ -n $f ]]; then
 +    if [[ $_autoenv_stack_entered_mtime[$f] == $(_autoenv_get_file_mtime $f) ]]; then
        # Entry has the expected mtime.
        return
      fi
@@@ -280,16 -270,22 +283,22 @@@ _autoenv_get_file_upwards() 
  
  _autoenv_chpwd_prev_dir=$PWD
  _autoenv_chpwd_handler() {
-   local env_file="$PWD/$AUTOENV_FILE_ENTER"
- 
    _autoenv_debug "Calling chpwd handler: PWD=$PWD"
  
+   if (( $AUTOENV_DISABLED )); then
+     _autoenv_debug "Disabled (AUTOENV_DISABLED)."
+     return
+   fi
+ 
+   local env_file="$PWD/$AUTOENV_FILE_ENTER"
+   _autoenv_debug "env_file: $env_file"
+ 
    # Handle leave event for previously sourced env files.
    if [[ $AUTOENV_HANDLE_LEAVE == 1 ]] && (( $#_autoenv_stack_entered )); then
      local prev_file prev_dir
      for prev_file in ${_autoenv_stack_entered}; do
 -      prev_dir=${prev_file:A:h}
 -      if ! [[ ${PWD:A}/ == ${prev_dir}/* ]]; then
 +      prev_dir=${prev_file:h}
 +      if ! [[ ${PWD}/ == ${prev_dir}/* ]]; then
          local env_file_leave=$prev_dir/$AUTOENV_FILE_LEAVE
          if _autoenv_check_authorized_env_file $env_file_leave; then
            _autoenv_source $env_file_leave leave $prev_dir