2 # https://github.com/joshuaclayton/dotfiles/blob/master/zsh_profile.d/autoenv.zsh
4 export AUTOENV_ENV_FILENAME=$HOME/.env_auth
6 # Name of file to look for when entering directories.
7 : ${AUTOENV_FILE_ENTER:=.env}
9 # Name of file to look for when leaving directories.
10 # Requires AUTOENV_HANDLE_LEAVE=1.
11 : ${AUTOENV_FILE_LEAVE:=.env.leave}
13 # Look for .env in parent dirs?
14 : ${AUTOENV_LOOK_UPWARDS:=1}
16 # Handle leave events when changing away from a subtree, where an "enter"
18 : ${AUTOENV_HANDLE_LEAVE:=1}
21 # Internal: stack of entered (and handled) directories.
22 _autoenv_stack_entered=()
25 _autoenv_hash_pair() {
30 env_shasum=$(shasum $env_file | cut -d' ' -f1)
32 echo "$env_file:$env_shasum:1"
35 _autoenv_authorized_env_file() {
37 local pair=$(_autoenv_hash_pair $env_file)
38 test -f $AUTOENV_ENV_FILENAME \
39 && \grep -qF $pair $AUTOENV_ENV_FILENAME
42 _autoenv_authorize() {
44 _autoenv_deauthorize $env_file
45 _autoenv_hash_pair $env_file >> $AUTOENV_ENV_FILENAME
48 _autoenv_deauthorize() {
50 if [[ -f $AUTOENV_ENV_FILENAME ]]; then
51 echo $(\grep -vF $env_file $AUTOENV_ENV_FILENAME) > $AUTOENV_ENV_FILENAME
55 # This function can be mocked in tests
56 _autoenv_read_answer() {
58 read $=_AUTOENV_TEST_READ_ARGS -q answer
62 # Args: 1: absolute path to env file (resolved symlinks).
63 _autoenv_check_authorized_env_file() {
64 if ! [[ -f $1 ]]; then
67 if ! _autoenv_authorized_env_file $1; then
68 echo "Attempting to load unauthorized env file: $1"
70 echo "**********************************************"
74 echo "**********************************************"
76 echo -n "Would you like to authorize it? [y/N] "
78 local answer=$(_autoenv_read_answer)
80 if [[ $answer != 'y' ]]; then
89 # Initialize $_autoenv_sourced_varstash, but do not overwrite an existing one
90 # from e.g. `exec zsh` (to reload your shell config).
91 : ${_autoenv_sourced_varstash:=0}
93 # Get directory of this file (absolute, with resolved symlinks).
94 _autoenv_this_dir=${0:A:h}
99 _autoenv_envfile_dir=$3
100 _autoenv_from_dir=$_autoenv_chpwd_prev_dir
103 # Source varstash library once.
104 if [[ $_autoenv_sourced_varstash == 0 ]]; then
105 source $_autoenv_this_dir/lib/varstash
106 export _autoenv_sourced_varstash=1
107 # NOTE: Varstash uses $PWD as default for varstash_dir, we might set it to
111 # Change to directory of env file, source it and cd back.
113 builtin cd -q $_autoenv_envfile_dir
115 builtin cd -q $new_dir
117 unset _autoenv_event _autoenv_from_dir
120 _autoenv_chpwd_prev_dir=$PWD
121 _autoenv_chpwd_handler() {
122 local env_file="$PWD/$AUTOENV_FILE_ENTER"
124 # Handle leave event for previously sourced env files.
125 if [[ $AUTOENV_HANDLE_LEAVE == 1 ]] && (( $#_autoenv_stack_entered )); then
126 for prev_dir in ${_autoenv_stack_entered}; do
127 if ! [[ ${PWD}/ == ${prev_dir}/* ]]; then
128 local env_file_leave=$prev_dir/$AUTOENV_FILE_LEAVE
129 if _autoenv_check_authorized_env_file $env_file_leave; then
130 _autoenv_source $env_file_leave leave $prev_dir
132 # Remove this entry from the stack.
133 _autoenv_stack_entered=(${_autoenv_stack_entered#$prev_dir})
138 if ! [[ -f $env_file ]] && [[ $AUTOENV_LOOK_UPWARDS == 1 ]]; then
139 # Look for files in parent dirs, using an extended Zsh glob.
140 setopt localoptions extendedglob
142 m=((../)#${AUTOENV_FILE_ENTER}(N))
144 env_file=${${m[1]}:A}
146 _autoenv_chpwd_prev_dir=$PWD
151 if ! _autoenv_check_authorized_env_file $env_file; then
152 _autoenv_chpwd_prev_dir=$PWD
156 # Load the env file only once: check if $env_file's parent
157 # is in $_autoenv_stack_entered.
158 local env_file_dir=${env_file:A:h}
159 if (( ${+_autoenv_stack_entered[(r)${env_file_dir}]} )); then
160 _autoenv_chpwd_prev_dir=$PWD
164 _autoenv_stack_entered+=(${env_file_dir})
166 _autoenv_source $env_file enter $PWD
168 _autoenv_chpwd_prev_dir=$PWD
171 autoload -U add-zsh-hook
172 add-zsh-hook chpwd _autoenv_chpwd_handler
174 # Look in current directory already.
175 _autoenv_chpwd_handler