From: Stefan Lang <langstefan@...>
Date: 2005-04-09T00:56:58+09:00
Subject: Re: [ANN] Rant 0.3.2

On Thursday 07 April 2005 03:09, Lionel Thiry wrote:

> � require 'rake'
> � # do rake stuff but more explicitly
> � # no more implicit tasks or rules
> � # no more implicit management of options
>
> Not being able to do this is what disturbs me the most about rake.

You can do this with Rant. Short example:

    require 'rant/rantlib'

    rac = Rant::RantApp.new
    cx = rac.context

    # you can call all methods on cx which you'd call
    # directly in an Rantfile
    cx.gen Rant::Generators::Rule, '.o' => '.c' do |t|
        cx.sys "cc -c -o #{t.name} #{t.source}"
    end

    tasks_a = rac.resolve 'a.o'
    # run all tasks for 'a.o', in this case it will be only one task
    tasks_a.each { |t| t.invoke }

    cx.task :clean do
        cx.rm_f Dir["*.o"]
    end

    # rac2 runs in directory
    rac2 = Rant::RantApp.new
    rac2.rootdir = "directory"
    # since we didn't  define any task, it looks for an Rantfile
    # in directory
    if rac2.run == 0
       # success
    else
       # failure
    end

    # We defined tasks for rac, so it doesn't look for an Rantfile.
    # We could explicitely load one:
    #    cx.source "Rantfile"
    rac.run

In this manner, you can manipulate Rant in many different ways and adopt it
for your current needs.

Stefan