bash scripts that creates ramdisk on osx system and use ramdisk to deal with maven target directories; based on: https://stackoverflow.com/questions/46224103/create-apfs-ram-disk-on-macos-high-sierra

ramdisk

#!/usr/bin/env bash

delete=false
while [ $# -gt 0 ]; do
  case "$1" in
    -s*|--size*|--size=*)
      size="${1#*=}"
      size=$(($size*2048))
      ;;
   -d|--delete)
     delete=true
      ;;
    --help)
      echo 'Usage: ramdisk --size=<in megabytes>'
      echo '  creates ramdisk'
      echo 'Usage: ramdisk --delete'
      echo '  deletes already created ramdisk, if exists'
      ;;
    *)
      echo 'Usage: ramdisk --size=<in megabytes>'
      echo '  creates ramdisk'
      echo 'Usage: ramdisk --delete'
      echo '  deletes already created ramdisk, if exists'
      exit 1
  esac
  shift
done

ramdisk_name='APFS RAM Disk'

if [ "$delete" = true ]; then
  [ -d "/Volumes/$ramdisk_name" ] && diskutil eject "/Volumes/$ramdisk_name"
else
  [ -d "/Volumes/$ramdisk_name" ] || diskutil partitionDisk $(hdiutil attach -nomount ram://$size) 1 GPTFormat APFS 'APFS RAM Disk' '100%'
fi

ramdisk-mvn

#!/usr/bin/env bash

delete=false
while [ $# -gt 0 ]; do
  case "$1" in
   -d|--delete)
     delete=true
      ;;
    --help)
      echo 'If used without parameters creates maven target directories on ramdisk'
      echo 'and creates link that leads to the created directory.'
      echo 'If used with --delete parameter it unlinks all target links'
      exit 0
      ;;
    *)
      echo 'If used without parameters creates maven target directories on ramdisk'
      echo 'and creates link that leads to the created directory.'
      echo 'If used with --delete parameter it unlinks all target links'
      exit 1
  esac
  shift
done

if [ "$delete" = true ]; then
  find "$(pwd)" -type l -name target | xargs -I {} unlink "{}" || exit 1
  exit 0
fi

ramdisk_name='APFS RAM Disk'
ramdisk_dir="/Volumes/$ramdisk_name"
current_dir="$(pwd)"

if [ ! -d "$ramdisk_dir" ]; then
  echo "Please create ramdisk: '$ramdisk_name' first (e.g: ramdisk --size 512)"
  exit 1
fi

echo "Re-link all target directories from: $current_dir"
find "$current_dir" -type f -name pom.xml ! -path '*/target/*' | \
    xargs -I {} dirname "{}" | \
    xargs -I {} mkdir -p "${ramdisk_dir}{}/target"

find "$current_dir" -type f -name pom.xml ! -path '*/target/*' | \
    xargs -I {} dirname "{}" | \
    xargs -I {} rm -rf "{}/target"

find "$current_dir" -type f -name pom.xml ! -path '*/target/*' | \
    xargs -I {} dirname "{}" | \
    xargs -I {} ln -sf "${ramdisk_dir}{}/target" "{}/target"