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# https://github.com/acomagu/fish-async-prompt/blob/master/conf.d/__async_prompt.fish
status is-interactive
or exit 0
set -g __async_prompt_tmpdir (command mktemp -d)
# Setup after the user defined prompt functions are loaded.
function __async_prompt_setup_on_startup --on-event fish_prompt
functions -e (status current-function)
for func in (__async_prompt_config_functions)
function $func -V func
test -e $__async_prompt_tmpdir'/'$fish_pid'_'$func
and cat $__async_prompt_tmpdir'/'$fish_pid'_'$func
end
end
end
not set -q async_prompt_on_variable
and set async_prompt_on_variable fish_bind_mode
function __async_prompt_fire --on-event fish_prompt (for var in $async_prompt_on_variable; printf '%s\n' --on-variable $var; end)
set st $status
for func in (__async_prompt_config_functions)
set -l tmpfile $__async_prompt_tmpdir'/'$fish_pid'_'$func
if functions -q $func'_loading_indicator' && test -e $tmpfile
read -zl last_prompt <$tmpfile
eval (string escape -- $func'_loading_indicator' "$last_prompt") >$tmpfile
end
__async_prompt_config_inherit_variables | __async_prompt_spawn $st \
$func' | read -z prompt
echo -n $prompt >'$tmpfile
end
end
function __async_prompt_spawn
set -l envs
begin
set st $argv[1]
while read line
switch "$line"
case 'fish_bind_mode'
echo fish_bind_mode $fish_bind_mode
case FISH_VERSION PWD _ history 'fish_*' hostname version
case status
echo status $st
case SHLVL
set envs $envs SHLVL=(math $SHLVL - 1)
case '*'
echo $line (string escape -- $$line)
end
end
end | read -lz vars
echo $vars | env $envs fish -c '
function __async_prompt_set_status
return $argv
end
function __async_prompt_signal
kill -s "'(__async_prompt_config_internal_signal)'" '$fish_pid'
end
while read -a line
test -z "$line"
and continue
if test "$line[1]" = status
set st $line[2]
else
eval set "$line"
end
end
not set -q st
and true
or __async_prompt_set_status $st
'$argv[2]'
__async_prompt_signal
sleep 0.3
__async_prompt_signal
sleep 0.3
__async_prompt_signal' &
disown
end
function __async_prompt_config_inherit_variables
if set -q async_prompt_inherit_variables
if test "$async_prompt_inherit_variables" = all
set -ng
else
for item in $async_prompt_inherit_variables
echo $item
end
end
else
echo status
echo SHLVL
echo CMD_DURATION
echo fish_bind_mode
end
end
function __async_prompt_config_functions
set -l funcs (
if set -q async_prompt_functions
string join \n $async_prompt_functions
else
echo fish_prompt
echo fish_right_prompt
end
)
for func in $funcs
functions -q "$func"
or continue
echo $func
end
end
function __async_prompt_config_internal_signal
if test -z "$async_prompt_signal_number"
echo SIGUSR1
else
echo "$async_prompt_signal_number"
end
end
function __async_prompt_repaint_prompt --on-signal (__async_prompt_config_internal_signal)
commandline -f repaint >/dev/null 2>/dev/null
end
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