RAM disk + rsync

setup

###############
# Step 0: 
# Disclaimer
#
# RAM DISK ARE VOLATILE. YOU WILL LOOSE DATA IF POWER IS INTERRUPTED.
# 


###############
# Step 1: 
# Create ram disk with specified capacity
#
# https://bogner.sh/2012/12/os-x-create-a-ram-disk-the-easy-way/
#
# The size of the disk is based on the page size number of 512 bytes sectors. That means the size in bytes has to be divided by 512. 
# For example to calculate the size parameter for a volume with 4GiB the following formular is used:
# ( 4 * (1024^3) ) / 512 = 8388608 (4gb)
#

$ diskutil erasevolume HFS+ 'myramdisk' `hdiutil attach -nomount ram://8388608`

###############
# Step 2: 
# Copy original project to ram disk
#

$ cp -R ./myproject /Volumes/myramdisk/

#
# or with rsync
#

$ rsync -a ./myproject /Volumes/myramdisk/


###############
# Step 3: 
# Keep original copt up to date with rsync in a terminal
#
# https://stackoverflow.com/questions/12460279/how-to-keep-two-folders-automatically-synchronized
#

#
# With filesystem events
#

# ONLY LINUX
$ while inotifywait -r -e modify,create,delete,move /Volumes/myramdisk/myproject; do
    rsync -avz /Volumes/myramdisk/myproject ./myproject
done

#
# or with timer for MacOSx
#


$ while true; do 
    rsync -av --delete /Volumes/myramdisk/myproject ./myproject
    sleep 10 # seconds
done


###############
# Step 4:
# Point your IDE/tools to the copy in the RAM disk
#