Best way to rename a file with chef

Question

How can I rename a file with chef?

In the chef doc I found only:

• create
• create_if_missing
• delete
• touch

Overhasty

Answer 1

Use ruby_block and inside use ::File.Rename(src,dst). Chef framework doesn't have file rename (or at least didn't had until 0.10.18).

Just an example:

ruby_block "Rename file" do
  block do
    ::File.rename(new_resource.src,new_resource.dst)
  end
end

Lovemaking

I'm just wondering... Is this idempotent? I mean... What happens when this runs for a second time and new_resource.src doesn't exist any longer? – Huckster

It will fail. This is just an example. You should assure yourself for the files from disk. – Lovemaking

wouldn't you just put a guard? as in only_if { File.exists?(new_resource.src)} – Servility

Answer 2

Another option if you need to rename multiple files. Checks one of the resource to know if it already ran.

ruby_block "Rename file" do
  block do
    ::Dir.glob("*/*.src").each {|i| File.rename(i, i.gsub(/(.*).src/,'\\1.dst'))};
  end
  not_if {File.exists?("new_resource.dst")}
end

Wilke