Script to automatically convert directories to sparse images on OS X. Since I have noticed a pretty obvious slowdown in OS X when having lots (many millions) of files on the filesystem, this has given me quite a significant speedup.

to_images.sh

#!/bin/bash -e

function image_all(){
    echo "Processing $1"
    test -d "$1" || return 1
    cd "$1"

    for i in *; do 
        if [ "$i" == "utils" ]; then
            continue
        fi

        image="$i.sparseimage"
        if [ -d "$i" ] && [ ! -f "$image" ]; then
            echo "Creating $image from $i"
            hdiutil create -size 1G -format UDSP -srcfolder "$i" -volname "$i" "$i"
            echo "Removing $i"
            rm -rf "$i"
        else
            echo "Skipping $i"
        fi
    done
}

image_all ~/workspace/
image_all ~/envs/