From: Stefan Lang <langstefan@...>
Date: 2005-03-30T05:10:14+09:00
Subject: Re: Rake newbie needs help

On Tuesday 29 March 2005 21:19, DaZoner wrote:
> I've read the rake docs online and I've got a very simple rakefile to work.
> Now I'd like to make it more complex and I can't figure out how to do it.
> Can anyone let me know if what I want to do is possible and how to do it?
>
> Why doesn't the following rakefile print "Making ..."?
>
> task :default => [:build]
>
> task :build do
>   print "In build\n"
>   file "newzip.zip"  do |t|
>     print "Making ",t.name,"\n"
>   end
> end
>
> Also I'd like to give the filetask prereq's saying only do this step if the
> file is out of date with *.rb and data/*.dat. Can I do this? Does it look
> like this?
>
> file "zipfile.zip" => ["*.rb","data/*.dat"] do |t|
> end
>
> Thanks for your help.

I think you really want this:

  task :default => ["newzip.zip"]

  file "newzip.zip" => ["*.rb", "data/*.dat"] do |t|
    puts "Making #{t.name}"
  end

The "file" function already defines a task for you.
You don't need to wrap a task around you "file" definition.

When your "build" task was run, it *defined* the "newzip.zip" task.

Stefan