Run make in a seperate window

make-session.sh

#!/bin/bash

# runs `make` in a separate window (using screen)
# I use this to compile out of vim,
# * without pausing vim while make executes
# * with the ability to easily scroll the output in a true terminal
# * with the ability to see coloured output

# in vim, run with
# :silent !code/make-session.sh <make options…>
# I prefer to map this to a key:
# :imap <F2> <ESC>:w<CR>:silent !make-session.sh<CR>
# :map <F2> :w<CR>:silent !make-session.sh<CR>

# Requires: screen, xdotool, wmctrl
# Replace your terminal emulator as needed ...


# The basic operation of this script is as follows:
# if no session is running then
#   create new session
# run `make` in session

# We customise the session a bit, thus some shell code must be run inside the session during set up.
# In order to avoid a separate file (or have this code as a single string), execute this initialisation only when $MAKESESSION_SETUP is set.
# Thus, creating a session involves setting $MAKESSESION_SETUP and sourcing this file

if [ -n "$MAKESESSION_SETUP" ]; then
    # run inside the session: initialise

    # modify prompt to indicate we are an a session, and signal non-zero exit code
    function makesession_prompt_command() {
        local EXIT=$?
        PS1="["
        if [ $EXIT -ne 0 ]; then
            PS1+="\e[31m"
        else
            PS1+="\e[32m"
        fi
        PS1+="make-session\e[0m \W]\$ "
    }

    PROMPT_COMMAND=makesession_prompt_command

    # run make, and activate this window on error
    function makesession_make() {
        # give a visual hint where make starts
        echo -e "\n\n\n\n\n\e[1;96m"\
"       MAKE\n"\
"====================\e[0m\n\n"

        # run make and save exit code (so that exit code is the exit-code of make)
        make "$@"
        local EXIT=$?

        if [ $EXIT -eq 0 ]; then
            # draw attention when make finished
            wmctrl -i -r $WINDOWID -b add,demands_attention
        else
            # on error, draw more attention by activating the window
            xdotool windowactivate $WINDOWID
        fi

        # return exit code of make
        return $EXIT
    }

else
    # run from outside, thus initiate a new run of make

    # ID of screen session
    screen_session=make-session-${PWD//\//_}

    # create screen session if necessary
    if ! screen -list "$screen_session" >&/dev/null; then
        xfce4-terminal -x screen -S "$screen_session" &

        # wait for screen to initialise
        while ! screen -list "$screen_session" >&/dev/null; do
            sleep 0.1
        done

        # source this script inside the screen session to set up the make session
        screen -S "$screen_session" -X stuff 'MAKESESSION_SETUP=1; source "'$0'"\n'
    fi

    # run make
    screen -S "$screen_session" -X stuff 'makesession_make '"$@"'\n'

fi