dirs_between.rb

dirs_between() function, quick and dirty implementation - Thomas Bellman, 08/19/2009 09:38 am

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module Puppet::Parser::Functions
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    newfunction(:dirs_between, :type => :rvalue, :doc => "\
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        Generate a list of pathnames.  Bla, bla, bla.
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        ") \
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    do |args|
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        if args.length != 2
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            self.fail("dirs_between(): wrong number of arguments" +
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                      " (#{args.length} for 2)")
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        end
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        topdir = args[0]
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        subbottom = args[1]
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        subdirs = []
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        while subbottom != "."
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            subbottom, component = File.split(subbottom)
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            subdirs.unshift(component)
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        end
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        dir = topdir
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        paths = [ dir ]
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        while subdirs.length > 0
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            component = subdirs.shift()
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            dir = File.join(dir, component)
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            paths.push(dir)
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        end
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        return paths
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    end
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end