auto build/run example based on watchman-make

README.md

#Usage

Install watchman, and then run ./autobuild.

Modify restart such that it builds your project appropriately, and modify the ENV=some_program line to instead be whatever program you wanted to run.

autobuild

#!/bin/sh

watchman-make --make './restart' -p '**/*.go' -t ignored

main.go

package main

import (
	"fmt"
)

func main() {
	fmt.Println("HELLO WORLD!")
}

restart

#!/bin/sh

EXE=./some_program
PIDFILE=pid/service.pid

msg() {
  echo -e "\e[92m$@\e[0m"
}

# kill existing process
if [ -f $PIDFILE ]; then
  pid=$(cat $PIDFILE)
  msg "killing previous process ($pid) . . ."
  kill $pid >/dev/null 2>&1

  # wait for it to die
  while kill -0 $pid >/dev/null 2>&1; do
    msg "waiting for process to exit . . ."
    sleep 0.5
  done
fi

msg "building project . . ."
go build -o some_program main.go

msg "starting new process . . ."
# fork, so watchman-make doesn't hang.
exec $EXE &

# write the new PIDFILE
mkdir -p $(dirname $PIDFILE)
echo $! > $PIDFILE