RAMDrive for compiling - is there such a thing?

# setup locations
$ramdrive = /Volumes/ramspace
$project = $HOME/code/someproject

# ..create ram drive..

# sync project directory to RAM drive
rsync -av $project $ramdrive

# build
cd $ramdrive
make

#optional, copy the built data to the project directory:
rsync $ramdrive/build $project/build

# may need some error checking for bad input.

 #convert relative path to absolute
 # /bin/pwd gets real path without symbolic link on my system and pwd
 # keeps symbolic link.  may need to change to suit your needs
somedir=`cd $1; /bin/pwd`;
somedirparent=`dirname $somedir`

# backup directory
/bin/tar cf $somedir.tar $somedir

# copy, tried move like https://wiki.archlinux.org/index.php/Ramdisk
# suggests, but got error
mkdir -p /mnt/ramdisk$somedir
/bin/cp -r  $somedir /mnt/ramdisk$somedirparent

# remove  dir
/bin/rm -r $somedir

# create symbolic link. needs to be in parent of given foler.
/bin/ln -s /mnt/ramdisk$somedir $somedirparent

#run updater
~/bin/rdbackupd "/bin/tar -uf $somedir.tar $somedir" &

#!/bin/bash

 #convert relative path to absolute
 #somepath would probably make more sense
 # pwd and not /bin/pwd so we get symbolic path
somedir=`cd $1; pwd`;

# remove symbolic link
rm $somedir

# copy dir back
/bin/cp -r /mnt/ramdisk$somedir $somedir

#remove from ramdisk
/bin/rm -r /mnt/ramdisk$somedir

#stop
killall rdbackupd

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <signal.h>
#include <sys/time.h>

struct itimerval it;
char* command;

void update_archive(int sig)
{
    system(command);
}

int main(int argc, char**argv)
{
    it.it_value.tv_sec     = 1;   // start right now
    it.it_value.tv_usec    = 0;
    it.it_interval.tv_sec  = 60;   // run every 60 seconds
    it.it_interval.tv_usec = 0;

    if (argc < 2)
    {
        printf("rdbackupd: Need command to runn");
        return 1;
    }
    command = argv[1];

    signal(SIGALRM, update_archive);
    setitimer(ITIMER_REAL, &it, NULL); // start

    while(true);

    return 0;
}