Create and manage a case-sensitive disk-image on OSX. This is great when you have a need to work with case-sensitive repos on a mac.

disk-utility

#!/bin/bash

# where to store the sparse-image
WORKSPACE=~/Documents/workspace.dmg.sparseimage

create() {

    if [ -f $WORKSPACE ]; then
      echo "File ${WORKSPACE} already exists";
      exit 1;
    fi
    hdiutil create -type SPARSE -fs 'Case-sensitive Journaled HFS+' -size 256g -volname workspace ${WORKSPACE}
}

detach() {
    m=$(hdiutil info | grep "/Volumes/workspace" | cut -f1)
    if [ ! -z "$m" ]; then
        hdiutil detach $m
    fi
}

attach() {
    if [ ! -f $WORKSPACE ]; then
      echo "File ${WORKSPACE} does not exist";
      exit 2;
    fi
    hdiutil attach ${WORKSPACE}
}

info() {
    dev=$(hdiutil info | grep "/Volumes/workspace" | cut -f1)
    hdiutil fsid $dev
}

compact() {
    detach
    hdiutil compact ${WORKSPACE} -batteryallowed
    attach
}

show_help() {
  echo "Usage: disk-utility command"
  echo -e "    -h --help\t\tShow this message"
  echo -e "    -c --create\t\tCreates the volume at ${WORKSPACE}"
  echo -e "    -a --attach\t\tAttaches the volume at /Volumes/workspace"
  echo -e "    -d --detach\t\tDetaches the volume from /Volumes/workspace"
  echo -e "    -i --info\t\tPrints info about /Volumes/workspace"
}

invalid_input() {
  echo "Invalid input" >&2
  show_help
  exit 1000
}

case "$1" in
    --create) create;;
    -c) create;;
    --attach) attach;;
    -a) attach;;
    --info) info;;
    -i) info;;
    --detach) detach;;
    -d) detach;;
    --compact) compact;;
    --help) show_help;;
    -h) show_help;;
    *) invalid_input;;
esac