From: James Coglan <jcoglan@...>
Date: 2009-09-21T03:03:26+09:00
Subject: Re: Thread-safe FileUtils.cd

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2009/9/20 Markus Schirp <mbj@seonic.net>

> The current working process is a global property of the underlaying system
> process.
>
> A system Process has one currency working directory, not two, or more.
>
> You can do your directory / filename calculations, using the absolute
> directory path, without any race conditions.


Yes, I realise now I should have forced users to use absolute paths, but as
it stands there's code out in the wild with stuff like:

hook :after_build do |build|
  FileUtils.cp 'README', File.join(build.build_dir, 'README')
end

So the working directory needs to be set so that 'README' can be found
correctly. Internally the tool uses absolute paths, so e.g.
`build.build_dir` is an absolute path, but code written by users is likely
to use relative paths.

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