50 lines
2.0 KiB
Ruby
50 lines
2.0 KiB
Ruby
module Puppet::Parser::Functions
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newfunction(:is_absolute_path, :type => :rvalue, :arity => 1, :doc => <<-'ENDHEREDOC') do |args|
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Returns boolean true if the string represents an absolute path in the filesystem. This function works
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for windows and unix style paths.
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The following values will return true:
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$my_path = 'C:/Program Files (x86)/Puppet Labs/Puppet'
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is_absolute_path($my_path)
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$my_path2 = '/var/lib/puppet'
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is_absolute_path($my_path2)
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$my_path3 = ['C:/Program Files (x86)/Puppet Labs/Puppet']
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is_absolute_path($my_path3)
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$my_path4 = ['/var/lib/puppet']
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is_absolute_path($my_path4)
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The following values will return false:
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is_absolute_path(true)
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is_absolute_path('../var/lib/puppet')
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is_absolute_path('var/lib/puppet')
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$undefined = undef
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is_absolute_path($undefined)
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ENDHEREDOC
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require 'puppet/util'
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path = args[0]
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# This logic was borrowed from
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# [lib/puppet/file_serving/base.rb](https://github.com/puppetlabs/puppet/blob/master/lib/puppet/file_serving/base.rb)
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# Puppet 2.7 and beyond will have Puppet::Util.absolute_path? Fall back to a back-ported implementation otherwise.
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if Puppet::Util.respond_to?(:absolute_path?) then
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value = (Puppet::Util.absolute_path?(path, :posix) or Puppet::Util.absolute_path?(path, :windows))
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else
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# This code back-ported from 2.7.x's lib/puppet/util.rb Puppet::Util.absolute_path?
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# Determine in a platform-specific way whether a path is absolute. This
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# defaults to the local platform if none is specified.
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# Escape once for the string literal, and once for the regex.
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slash = '[\\\\/]'
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name = '[^\\\\/]+'
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regexes = {
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:windows => %r!^(([A-Z]:#{slash})|(#{slash}#{slash}#{name}#{slash}#{name})|(#{slash}#{slash}\?#{slash}#{name}))!i,
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:posix => %r!^/!
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}
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value = (!!(path =~ regexes[:posix])) || (!!(path =~ regexes[:windows]))
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end
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value
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end
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end |