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Last change
on this file since 30960 was 30960, checked in by davidb, 8 years ago |
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Switch to using Puppet to provision machine. Strongly based on files developed for spark-hdfs cluster
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File size:
609 bytes
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| 1 | #
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| 2 | # grep.rb
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| 3 | #
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| 4 |
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| 5 | module Puppet::Parser::Functions
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| 6 | newfunction(:grep, :type => :rvalue, :doc => <<-EOS
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| 7 | This function searches through an array and returns any elements that match
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| 8 | the provided regular expression.
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| 9 |
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| 10 | *Examples:*
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| 11 |
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| 12 | grep(['aaa','bbb','ccc','aaaddd'], 'aaa')
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| 13 |
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| 14 | Would return:
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| 15 |
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| 16 | ['aaa','aaaddd']
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| 17 | EOS
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| 18 | ) do |arguments|
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| 19 |
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| 20 | if (arguments.size != 2) then
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| 21 | raise(Puppet::ParseError, "grep(): Wrong number of arguments "+
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| 22 | "given #{arguments.size} for 2")
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| 23 | end
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| 24 |
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| 25 | a = arguments[0]
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| 26 | pattern = Regexp.new(arguments[1])
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| 27 |
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| 28 | a.grep(pattern)
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| 29 |
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| 30 | end
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| 31 | end
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| 32 |
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| 33 | # vim: set ts=2 sw=2 et :
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