Yesterday I had to detach a folder from the SVN supervision. In order to do that, one needs to delete the .svn folders within the folder and its subfolders.
I decided to take advantage of IronRuby for that matter.
The problem I ran into with this one was that the files on the .svn folder were read-only. This means that in order to delete the folder, I first have to loop over all the files and remove their read-only attribute. I searched the net for a way to do that without such a loop and found a solution that used a WMI request.
IronRuby lets me take the benefit of the great System.Management class and use it in a Ruby script that I can write in no time.
Here is the code that I've ended up with:
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require 'mscorlib'
require 'System.Management, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'
def RemoveSvnFromDir(path)
# loop over the files in the given path
Dir.foreach(path) do |filename|
current_dir = path + "\\" + filename
# Ignore dot and double-dot.
next if filename == "." || filename == ".."
# If the file is the svn folder, remove it using WMI (no need to reset the read-only attributes)
if filename == ".svn"
begin
puts "Removing #{current_dir}"
dir = System::Management::ManagementObject.new("win32_Directory.Name='#{current_dir}'")
dir.Get();
dir.InvokeMethod("Delete", nil,nil);
rescue Exception => e
puts e.to_s
end
next
end
# If this is a folder, recourse into it and detach it from SVN as well
if File.directory?(current_dir)
RemoveSvnFromDir(current_dir)
end
end
end
# Get the path from the command line and execute
dir_name = ARGV[0]
puts "Detaching SVN from #{dir_name}"
RemoveSvnFromDir(dir_name)
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In order to run it, all that is needed is to open cmd and write "ir SVNCleaner.rb c:\MyCodeDirectory" (assuming that the script file is named SVNCleaner.rb).
This is just a small example of the great power that uniting .Net and dynamic languages can unleash, get ready for more!
Happy Succoth!
Shay.