Bash script for building and starting application written in Go. Also if some file is changed, it rebuilds and restarts application.

restart

#!/bin/bash

# Bash script for building and starting application in Go. Also if some file is changed, it rebuilds and restarts application.
# Before running the script, inotify-tools has to be installed.

trap ctrl_c INT

function ctrl_c {
    kill $PID
    log "stopped"
    exit
}

APPNAME=${PWD##*/}
YELLOW=$(tput setaf 3)
RESET=$(tput sgr0)

function log {
    echo "${YELLOW}${1} ${APPNAME}${RESET}"
}

function run {
    if [[ -n "$PID" ]]; then kill $PID; fi
    ./$APPNAME &
    PID=$!
}

function build {
    go build .
}

build
log "built and started"
run

while true; do
    change=$(inotifywait --quiet -e close_write,moved_to,create .)
    file=${change#./ * }
    if [[ ${file##*.} = go ]]; then
        build
        log "rebuilt and restared"
        run
    fi
done