: ${AUTOENV_HANDLE_LEAVE:=1}
-# Internal: stack of entered (and handled) directories.
+# Public helper functions, which can be used from your .env files:
+#
+# Source the next .env file from parent directories.
+# This is useful if you want to use a base .env file for a directory subtree.
+autoenv_source_parent() {
+ local parent_env_file=$(_autoenv_get_file_upwards $PWD)
+
+ if [[ -n $parent_env_file ]] \
+ && _autoenv_check_authorized_env_file $parent_env_file; then
+
+ local parent_env_dir=${parent_env_file:A:h}
+ _autoenv_source $parent_env_file enter $parent_env_dir
+ fi
+}
+
+
+# Internal: stack of entered (and handled) directories. {{{
_autoenv_stack_entered=()
+typeset -A _autoenv_stack_entered_mtime
+_autoenv_stack_entered_mtime=()
+# Add an entry to the stack, and remember its mtime.
+_autoenv_stack_entered_add() {
+ local env_file=$1
-_autoenv_hash_pair() {
+ # Remove any existing entry.
+ _autoenv_stack_entered[$_autoenv_stack_entered[(i)$1]]=()
+
+ # Append it to the stack, and remember its mtime.
+ _autoenv_stack_entered+=($env_file)
+ _autoenv_stack_entered_mtime[$env_file]=$(_autoenv_get_file_mtime $env_file)
+}
+
+_autoenv_get_file_mtime() {
+ if [[ -f $1 ]]; then
+ zstat +mtime $1
+ else
+ echo 0
+ fi
+}
+
+# Remove an entry from the stack.
+_autoenv_stack_entered_remove() {
+ local env_file=$1
+ _autoenv_stack_entered=(${_autoenv_stack_entered#$env_file})
+ _autoenv_stack_entered_mtime[$env_file]=
+}
+
+# Is the given entry already in the stack?
+_autoenv_stack_entered_contains() {
local env_file=$1
+ if (( ${+_autoenv_stack_entered[(r)${env_file}]} )); then
+ # Entry is in stack.
+ if [[ $_autoenv_stack_entered_mtime[$env_file] == $(_autoenv_get_file_mtime $env_file) ]]; then
+ # Entry has the expected mtime.
+ return
+ fi
+ fi
+ return 1
+}
+# }}}
+
+# Load zstat module, but only its builtin `zstat`.
+zmodload -F zsh/stat b:zstat
+
+
+_autoenv_hash_pair() {
+ local env_file=${1:A}
if (( $+2 )); then
env_shasum=$2
else
return 0
}
-# Initialize $_autoenv_sourced_varstash, but do not overwrite an existing one
-# from e.g. `exec zsh` (to reload your shell config).
-: ${_autoenv_sourced_varstash:=0}
-
# Get directory of this file (absolute, with resolved symlinks).
_autoenv_this_dir=${0:A:h}
_autoenv_source() {
local env_file=$1
_autoenv_event=$2
- _autoenv_envfile_dir=$3
+ local _autoenv_envfile_dir=$3
+
_autoenv_from_dir=$_autoenv_chpwd_prev_dir
_autoenv_to_dir=$PWD
# Source varstash library once.
- if [[ $_autoenv_sourced_varstash == 0 ]]; then
+ if [[ -z "$functions[(I)autostash]" ]]; then
source $_autoenv_this_dir/lib/varstash
- export _autoenv_sourced_varstash=1
# NOTE: Varstash uses $PWD as default for varstash_dir, we might set it to
# ${env_file:h}.
fi
source $env_file
builtin cd -q $new_dir
- unset _autoenv_event _autoenv_from_dir
+ # Unset vars set for enter/leave scripts.
+ # This should not get done for recursion (via autoenv_source_parent),
+ # and can be useful to have in general after autoenv was used.
+ # unset _autoenv_event _autoenv_from_dir _autoenv_to_dir
+}
+
+_autoenv_get_file_upwards() {
+ local look_from=${1:-$PWD}
+ local look_for=${2:-$AUTOENV_FILE_ENTER}
+ # Look for files in parent dirs, using an extended Zsh glob.
+ setopt localoptions extendedglob
+ local m
+ # Y1: short-circuit: first match.
+ # :A: absolute path, resolving symlinks.
+ m=($look_from/(../)##${look_for}(NY1:A))
+ if (( $#m )); then
+ echo $m[1]
+ fi
}
+
_autoenv_chpwd_prev_dir=$PWD
_autoenv_chpwd_handler() {
local env_file="$PWD/$AUTOENV_FILE_ENTER"
# Handle leave event for previously sourced env files.
if [[ $AUTOENV_HANDLE_LEAVE == 1 ]] && (( $#_autoenv_stack_entered )); then
- for prev_dir in ${_autoenv_stack_entered}; do
+ local prev_file prev_dir
+ for prev_file in ${_autoenv_stack_entered}; do
+ prev_dir=${prev_file:A: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 $prev_dir
fi
- # Remove this entry from the stack.
- _autoenv_stack_entered=(${_autoenv_stack_entered#$prev_dir})
+ _autoenv_stack_entered_remove $prev_dir
fi
done
fi
if ! [[ -f $env_file ]] && [[ $AUTOENV_LOOK_UPWARDS == 1 ]]; then
- # Look for files in parent dirs, using an extended Zsh glob.
- setopt localoptions extendedglob
- local m
- m=((../)#${AUTOENV_FILE_ENTER}(N))
- if (( $#m )); then
- env_file=${${m[1]}:A}
- else
+ env_file=$(_autoenv_get_file_upwards $PWD)
+ if [[ -z $env_file ]]; then
_autoenv_chpwd_prev_dir=$PWD
return
fi
fi
- if ! _autoenv_check_authorized_env_file $env_file; then
+ # Load the env file only once: check if $env_file is in the stack of entered
+ # directories.
+ if _autoenv_stack_entered_contains $env_file; then
_autoenv_chpwd_prev_dir=$PWD
return
fi
- # Load the env file only once: check if $env_file's parent
- # is in $_autoenv_stack_entered.
- local env_file_dir=${env_file:A:h}
- if (( ${+_autoenv_stack_entered[(r)${env_file_dir}]} )); then
+ if ! _autoenv_check_authorized_env_file $env_file; then
_autoenv_chpwd_prev_dir=$PWD
return
fi
- _autoenv_stack_entered+=(${env_file_dir})
+ _autoenv_stack_entered_add $env_file
+ # Source the enter env file.
_autoenv_source $env_file enter $PWD
_autoenv_chpwd_prev_dir=$PWD