-# Initially based on
-# https://github.com/joshuaclayton/dotfiles/blob/master/zsh_profile.d/autoenv.zsh
-
-export AUTOENV_ENV_FILENAME=$HOME/.env_auth
-
-# Name of file to look for when entering directories.
-: ${AUTOENV_FILE_ENTER:=.env}
-
-# Name of file to look for when leaving directories.
-# Requires AUTOENV_HANDLE_LEAVE=1.
-: ${AUTOENV_FILE_LEAVE:=.env.leave}
-
-# Look for .env in parent dirs?
+: ${AUTOENV_AUTH_FILE:=~/.env_auth}
+: ${AUTOENV_FILE_ENTER:=.autoenv.zsh}
+: ${AUTOENV_FILE_LEAVE:=.autoenv_leave.zsh}
: ${AUTOENV_LOOK_UPWARDS:=1}
-
-# Handle leave events when changing away from a subtree, where an "enter"
-# event was handled?
: ${AUTOENV_HANDLE_LEAVE:=1}
+: ${AUTOENV_DISABLED:=0}
+typeset -a _autoenv_stack_entered
+typeset -A _autoenv_stack_entered_ctime
+typeset -a _autoenv_ctime
-# Public helper functions, which can be used from your .env files:
-#
-# Source the next .env file from parent directories.
-# This is useful if you want to use a base .env file for a directory subtree.
-autoenv_source_parent() {
- local parent_env_file=$(_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=$1
-
- # Remove any existing entry.
- _autoenv_stack_entered[$_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)
+zmodload -F zsh/stat b:zstat
+_autoenv_get_file_ctime() {
+ zstat -a _autoenv_ctime +ctime $1 2>/dev/null || _autoenv_ctime=(0)
}
-_autoenv_get_file_mtime() {
- if [[ -f $1 ]]; then
- zstat +mtime $1
- else
- echo 0
- fi
+_autoenv_stack_entered_remove() {
+ local env_file=$1
+ _autoenv_stack_entered[$_autoenv_stack_entered[(i)$env_file]]=()
+ _autoenv_stack_entered_ctime[$env_file]=
}
-# 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]=
+_autoenv_stack_entered_add() {
+ local env_file=$1
+ _autoenv_stack_entered_remove $env_file
+ _autoenv_stack_entered+=($env_file)
+ _autoenv_get_file_ctime $env_file
+ _autoenv_stack_entered_ctime[$env_file]=${_autoenv_ctime[1]}
}
-# 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
+ local env_file=$1
+ local f i
+ if (( ${+_autoenv_stack_entered[(r)${env_file}]} )); then
+ f=$env_file
+ else
+ local env_file_abs=${env_file:A}
+ for i ($_autoenv_stack_entered) {
+ [[ ${i:A} == ${env_file_abs} ]] && {
+ f=$i
+ break
+ }
+ }
fi
- fi
- return 1
+ [[ -n $f ]] || return 1
+ _autoenv_get_file_ctime $f
+ [[ ${_autoenv_stack_entered_ctime[$f]} == ${_autoenv_ctime[1]} ]] || return 1
}
-# }}}
-
-# Load zstat module, but only its builtin `zstat`.
-zmodload -F zsh/stat b:zstat
-
_autoenv_hash_pair() {
- local env_file=${1:A}
- if (( $+2 )); then
- env_shasum=$2
- else
- env_shasum=$(shasum $env_file | cut -d' ' -f1)
- fi
- echo "$env_file:$env_shasum:1"
+ local env_file=${1:A}
+ env_cksum=${${:-$(cksum "$env_file")}[1]}
+ ret_pair=":${env_file}:${env_cksum}"
}
_autoenv_authorized_env_file() {
- local env_file=$1
- local pair=$(_autoenv_hash_pair $env_file)
- test -f $AUTOENV_ENV_FILENAME \
- && \grep -qF $pair $AUTOENV_ENV_FILENAME
+ local env_file=$1
+ local env_file_abs=${env_file:A}
+ local ret_pair
+ local -a lines
+ [[ -s $AUTOENV_AUTH_FILE ]] &&
+ lines=( ${(M)"${(f@)"$(< $AUTOENV_AUTH_FILE)"}":#:$env_file_abs:*} )
+ [[ -z $lines ]] && return 1
+ line=${lines[-1]}
+ _autoenv_hash_pair $env_file
+ [[ $line == $ret_pair ]] || return 1
}
_autoenv_authorize() {
- local env_file=$1
- _autoenv_deauthorize $env_file
- _autoenv_hash_pair $env_file >> $AUTOENV_ENV_FILENAME
+ local env_file=${1:A}
+ _autoenv_deauthorize $env_file
+ [[ -d ${AUTOENV_AUTH_FILE:h} ]] || mkdir -p ${AUTOENV_AUTH_FILE:h}
+ local ret_pair
+ _autoenv_hash_pair $env_file && print "$ret_pair" >>| $AUTOENV_AUTH_FILE
}
_autoenv_deauthorize() {
- local env_file=$1
- if [[ -f $AUTOENV_ENV_FILENAME ]]; then
- echo $(\grep -vF $env_file $AUTOENV_ENV_FILENAME) > $AUTOENV_ENV_FILENAME
- fi
-}
-
-# This function can be mocked in tests
-_autoenv_read_answer() {
- local answer
- read $=_AUTOENV_TEST_READ_ARGS -q answer
- echo $answer
+ local env_file=${1:A}
+ [[ -s $AUTOENV_AUTH_FILE ]] || return
+ perl -i -ne "print unless m[:${env_file}:]" $AUTOENV_AUTH_FILE
}
-# Args: 1: absolute path to env file (resolved symlinks).
_autoenv_check_authorized_env_file() {
- if ! [[ -f $1 ]]; then
- return 1
- fi
- if ! _autoenv_authorized_env_file $1; then
- echo "Attempting to load unauthorized env file: $1"
- echo ""
- echo "**********************************************"
- echo ""
- cat $1
- echo ""
- echo "**********************************************"
- echo ""
- echo -n "Would you like to authorize it? [y/N] "
-
- local answer=$(_autoenv_read_answer)
- echo
- if [[ $answer != 'y' ]]; then
- return 1
- fi
-
+ local env_file=$1
+ [[ -f $env_file ]] || return 1
+ _autoenv_authorized_env_file $1 && return
+ command ls -l $1 >&2
+ local answer
+ setopt localtraps
+ trap "return 1" INT
+ read -q answer\?"Authorize? "
+ print
+ [[ $answer == "y" ]] || return 1
_autoenv_authorize $1
- fi
- return 0
}
-# Get directory of this file (absolute, with resolved symlinks).
-_autoenv_this_dir=${0:A:h}
-
_autoenv_source() {
- local env_file=$1
- _autoenv_event=$2
- local _autoenv_envfile_dir=$3
-
- _autoenv_from_dir=$_autoenv_chpwd_prev_dir
- _autoenv_to_dir=$PWD
-
- # Source varstash library once.
- if [[ -z "$functions[(I)autostash]" ]]; then
- source $_autoenv_this_dir/lib/varstash
- # NOTE: Varstash uses $PWD as default for varstash_dir, we might set it to
- # ${env_file:h}.
- fi
-
- # Change to directory of env file, source it and cd back.
- local new_dir=$PWD
- builtin cd -q $_autoenv_envfile_dir
- source $env_file
- builtin cd -q $new_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
+ local autoenv_env_file=$1
+ local autoenv_event=$2
+ print "autoenv: $autoenv_env_file" >&2
+ (( $+functions[autostash] )) || source ${${funcsourcetrace[1]%:*}:h}/lib/varstash
+ varstash_dir=${autoenv_env_file:h} source $autoenv_env_file
+ [[ $autoenv_event == enter ]] && _autoenv_stack_entered_add $autoenv_env_file
}
_autoenv_get_file_upwards() {
- local look_from=${1:-$PWD}
- local look_for=${2:-$AUTOENV_FILE_ENTER}
-
- # Manually look in parent dirs. An extended Zsh glob should use Y1 for
- # performance reasons, which is only available in zsh-5.0.5-146-g9381bb6.
- local last
- local parent_dir="$look_from/.."
- while true; do
- parent_dir=${parent_dir:A}
- if [[ $parent_dir == $last ]]; then
- break
- fi
- parent_file="${parent_dir}/${look_for}"
-
- if [[ -f $parent_file ]]; then
- echo $parent_file
- break
- fi
-
- last=$parent_dir
- parent_dir="${parent_dir}/.."
- done
+ setopt EXTENDED_GLOB NO_NOMATCH
+ found=( (../)#$AUTOENV_FILE_ENTER(Y1:A) )
+ env_file=${found[1]}
}
-
-_autoenv_chpwd_prev_dir=$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
- 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
- _autoenv_stack_entered_remove $prev_dir
- fi
- done
- fi
-
- if ! [[ -f $env_file ]] && [[ $AUTOENV_LOOK_UPWARDS == 1 ]]; then
- env_file=$(_autoenv_get_file_upwards $PWD)
- if [[ -z $env_file ]]; then
- _autoenv_chpwd_prev_dir=$PWD
- return
+ emulate -L zsh
+ (( $AUTOENV_DISABLED )) && return
+ local env_file="$PWD/$AUTOENV_FILE_ENTER"
+ 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:h}
+ if ! [[ ${PWD}/ == ${prev_dir}/* ]]; then
+ local env_file_leave=$prev_dir/$AUTOENV_FILE_LEAVE
+ if _autoenv_check_authorized_env_file $env_file_leave; then
+ varstash_dir=$prev_dir _autoenv_source $env_file_leave leave $prev_dir
+ fi
+ (( $+functions[autostash] )) && varstash_dir=$prev_dir autounstash
+ _autoenv_stack_entered_remove $prev_file
+ fi
+ done
fi
- fi
-
- # 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
-
- if ! _autoenv_check_authorized_env_file $env_file; then
- _autoenv_chpwd_prev_dir=$PWD
- return
- fi
-
- _autoenv_stack_entered_add $env_file
-
- # Source the enter env file.
- _autoenv_source $env_file enter $PWD
-
- _autoenv_chpwd_prev_dir=$PWD
+ if ! [[ -f $env_file ]] && [[ $AUTOENV_LOOK_UPWARDS == 1 ]]; then
+ _autoenv_get_file_upwards $PWD
+ [[ -f $env_file ]] || return
+ fi
+ _autoenv_stack_entered_contains $env_file && return
+ _autoenv_check_authorized_env_file $env_file || return
+ _autoenv_source $env_file enter
}
autoload -U add-zsh-hook
add-zsh-hook chpwd _autoenv_chpwd_handler
-
-# Look in current directory already.
_autoenv_chpwd_handler