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author | Ken Barber <ken@bob.sh> | 2011-08-05 08:52:00 +0100 |
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committer | Ken Barber <ken@bob.sh> | 2011-08-05 10:31:46 +0100 |
commit | aa27fc76c7d5fa090ea1d47027856c3e70c6ae8f (patch) | |
tree | dc9a4ae93fc7345d719de29d956f6488c1b69005 /lib/puppet/parser/functions/zip.rb | |
parent | 07d0eca31780bba76f2283ce83f944473ce8fe00 (diff) | |
parent | 1b73a66fc67af0e33fa41aacf50654d4a7a4903c (diff) | |
download | puppet-stdlib-aa27fc76c7d5fa090ea1d47027856c3e70c6ae8f.tar.gz puppet-stdlib-aa27fc76c7d5fa090ea1d47027856c3e70c6ae8f.tar.bz2 |
(#8797) Merge puppetlabs-functions into puppetlabs-stdlib
It was decided that maintaining puppetlabs-functions and
puppetlabs-stdlib was duplication as both are trying to
achieve the same goal.
This patch provides a merge of the puppetlabs-functions
into the puppetlabs-stdlib repository, with history
preservation.
The following conflicts were found and resolved:
* LICENSE file from functions was used as it aligns with
ASL usage instructions and contains relevant copyright
information:
http://www.apache.org/licenses/LICENSE-2.0.html
* Used spec_helper.rb from functions - this is what
Puppet core uses and doesn't break tests.
* Merged .gitignore and spec.opts options.
Diffstat (limited to 'lib/puppet/parser/functions/zip.rb')
-rw-r--r-- | lib/puppet/parser/functions/zip.rb | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/lib/puppet/parser/functions/zip.rb b/lib/puppet/parser/functions/zip.rb new file mode 100644 index 0000000..2b56e9c --- /dev/null +++ b/lib/puppet/parser/functions/zip.rb @@ -0,0 +1,65 @@ +# +# zip.rb +# + +module Puppet::Parser::Functions + newfunction(:zip, :type => :rvalue, :doc => <<-EOS +Takes one element from first array and merges corresponding elements from second array. This generates a sequence of n-element arrays, where n is one more than the count of arguments. + +*Example:* + + zip(['1','2','3'],['4','5','6']) + +Would result in: + + ["1", "4"], ["2", "5"], ["3", "6"] + EOS + ) do |arguments| + + # Technically we support three arguments but only first is mandatory ... + raise(Puppet::ParseError, "zip(): Wrong number of arguments " + + "given (#{arguments.size} for 2)") if arguments.size < 2 + + a = arguments[0] + b = arguments[1] + + unless a.is_a?(Array) and b.is_a?(Array) + raise(Puppet::ParseError, 'zip(): Requires array to work with') + end + + flatten = arguments[2] if arguments[2] + + if flatten + klass = flatten.class + + # We can have either true or false, or string which resembles boolean ... + unless [FalseClass, TrueClass, String].include?(klass) + raise(Puppet::ParseError, 'zip(): Requires either ' + + 'boolean or string to work with') + end + + if flatten.is_a?(String) + # We consider all the yes, no, y, n and so on too ... + flatten = case flatten + # + # This is how undef looks like in Puppet ... + # We yield false in this case. + # + when /^$/, '' then false # Empty string will be false ... + when /^(1|t|y|true|yes)$/ then true + when /^(0|f|n|false|no)$/ then false + when /^(undef|undefined)$/ then false # This is not likely to happen ... + else + raise(Puppet::ParseError, 'zip(): Unknown type of boolean given') + end + end + end + + result = a.zip(b) + result = flatten ? result.flatten : result + + return result + end +end + +# vim: set ts=2 sw=2 et : |