m_runner.sh

m_runner.sh

#!/bin/bash

# Credit to windwp for original script:
# https://gist.github.com/windwp/273387a73f902ae49c7c90d612fd2238
# (this is slightly modified version)

#  use it for continue running application
#  similar entr

# if you want to use swallow function you need to install
# https://github.com/windwp/i3-master-stack
# https://github.com/windwp/i3-master-stack/blob/master/swallow

#┌──────────┐
#│vim script│
#└──────────┘

# put in on vim.rc  or init.vim
# change *.go to your file type
#========================================

#augroup editorsignal
#    autocmd!
#    autocmd bufwritepost *.go  :silent !pkill -usr1 m_runner.sh
#augroup end


# OR
# use watchexec/entr in another terminal
# watchexec -- pkill -usr m_runner.sh


is_running=1
command="$@"

run_command(){
    echo "-----------------------------"
    $command &
    pid=$!
}

handler(){
    wid=$(xdotool search -pid $pid)
    # focus on runner process it make i3 understand the next window spawn
    if [[ ${#wid} -gt 2  ]]; then
        xdotool windowactivate $wid
    fi
    sleep 0.5
    kill $pid

    run_command
    sleep 1

    # do what ever you want to update layout 

    # focus back on vim 
    i3-msg '[title="nvim"] focus' > /dev/null
}

handle_ctrl_c() {
    # `\r` to overwrite `^C` entered by user
    printf "\r-----------------------------\n"
    echo "Received Ctrl-C"
    kill $pid
    is_running=0
}

trap  handler usr1
trap  handle_ctrl_c SIGINT


run_command


while [ $is_running -eq 1 ] ; do
    sleep 0.5
done

# reset all traps
trap - usr1
trap - SIGINT

echo "Quiting..."