Mac Unit Test part 2: Checking disk space

Mac Unit Test part 1: Testing servers and ports

I use the following script to check free disk space.

#!/usr/bin/ruby -w
free_space_str = `/usr/sbin/diskutil info / | grep 'Free Space'`
free_space = free_space_str.slice(/([0-9]|\.)+/)
free_space_bytes = free_space_str.slice(/((G|M|k)B)+/)

free_space = free_space/1000 if free_space_bytes == "MB" 
free_space = free_space/1000000 if free_space_bytes == "kB" 

if free_space.to_f < $*[0].to_f then
    msg = "Free disk space is too low at: " + free_space + free_space_bytes + "\nStarting periodic" 
    `osascript -l AppleScript -e 'tell Application "Finder" to display dialog "#{msg}" ' `
    p msg
    `periodic daily weekly`
end

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