Simple Raspberry pigpio based Arduino sketch compiler

arduino_compile

#!/bin/bash

if [[ "$1" == "" || ${1: -4} != ".ino" ]]; then
  echo -e "Usage:\n"`basename $0`" file.ino\nsudo ./file"
  exit
fi

wrapper=`cat << EndOfWrapper
#include <time.h>
#include <unistd.h>
#include <assert.h>
#include <pigpio.h>

#define LED_BUILTIN   18
#define OUTPUT        PI_OUTPUT
#define HIGH          PI_HIGH
#define LOW           PI_LOW

#define digitalWrite  gpioWrite

#define pinMode       gpioSetMode

static struct timespec time0 = { .tv_sec=0, .tv_nsec=0 };

void delayMicroseconds(unsigned int us)  { usleep(us); }
void delay(unsigned int ms)              { delayMicroseconds(1000*ms); }

unsigned long micros();
unsigned long millis()                  { return micros()/1000; }
unsigned long micros() 
{
  struct timespec time1;
  clock_gettime(CLOCK_REALTIME, &time1);

  if (time0.tv_sec==0 && time0.tv_nsec==0)
  {
    time0.tv_sec =time1.tv_sec;
    time0.tv_nsec=time1.tv_nsec;
  }

  return 1000000*(time1.tv_sec-(long long)time0.tv_sec) + (time1.tv_nsec-(long)time0.tv_nsec)/1000;  
}
EndOfWrapper
`
echo -e "$wrapper\n#include \"$1\"\nint main()  { assert(gpioInitialise()>=0); micros(); setup(); while (1)  loop(); }" | gcc -x c -Wall -pedantic -Wextra - -o `basename $1 .ino` -lpigpio