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Diffstat (limited to 'lib/puppet/string/string_collection.rb')
| -rw-r--r-- | lib/puppet/string/string_collection.rb | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/lib/puppet/string/string_collection.rb b/lib/puppet/string/string_collection.rb deleted file mode 100644 index ecd99359d..000000000 --- a/lib/puppet/string/string_collection.rb +++ /dev/null @@ -1,123 +0,0 @@ -# -*- coding: utf-8 -*- -require 'puppet/string' - -module Puppet::String::StringCollection - SEMVER_VERSION = /^(\d+)\.(\d+)\.(\d+)([A-Za-z][0-9A-Za-z-]*|)$/ - - @strings = Hash.new { |hash, key| hash[key] = {} } - - def self.strings - unless @loaded - @loaded = true - $LOAD_PATH.each do |dir| - next unless FileTest.directory?(dir) - Dir.chdir(dir) do - Dir.glob("puppet/string/v*/*.rb").collect { |f| f.sub(/\.rb/, '') }.each do |file| - iname = file.sub(/\.rb/, '') - begin - require iname - rescue Exception => detail - puts detail.backtrace if Puppet[:trace] - raise "Could not load #{iname} from #{dir}/#{file}: #{detail}" - end - end - end - end - end - return @strings.keys - end - - def self.validate_version(version) - !!(SEMVER_VERSION =~ version.to_s) - end - - def self.cmp_versions(a, b) - a, b = [a, b].map do |x| - parts = SEMVER_VERSION.match(x).to_a[1..4] - parts[0..2] = parts[0..2].map { |e| e.to_i } - parts - end - - cmp = a[0..2] <=> b[0..2] - if cmp == 0 - cmp = a[3] <=> b[3] - cmp = +1 if a[3].empty? && !b[3].empty? - cmp = -1 if b[3].empty? && !a[3].empty? - end - cmp - end - - def self.[](name, version) - @strings[underscorize(name)][version] if string?(name, version) - end - - def self.string?(name, version) - name = underscorize(name) - return true if @strings[name].has_key?(version) - - # We always load the current version file; the common case is that we have - # the expected version and any compatibility versions in the same file, - # the default. Which means that this is almost always the case. - # - # We use require to avoid executing the code multiple times, like any - # other Ruby library that we might want to use. --daniel 2011-04-06 - begin - require "puppet/string/#{name}" - - # If we wanted :current, we need to index to find that; direct version - # requests just work™ as they go. --daniel 2011-04-06 - if version == :current then - # We need to find current out of this. This is the largest version - # number that doesn't have a dedicated on-disk file present; those - # represent "experimental" versions of strings, which we don't fully - # support yet. - # - # We walk the versions from highest to lowest and take the first version - # that is not defined in an explicitly versioned file on disk as the - # current version. - # - # This constrains us to only ship experimental versions with *one* - # version in the file, not multiple, but given you can't reliably load - # them except by side-effect when you ignore that rule this seems safe - # enough... - # - # Given those constraints, and that we are not going to ship a versioned - # interface that is not :current in this release, we are going to leave - # these thoughts in place, and just punt on the actual versioning. - # - # When we upgrade the core to support multiple versions we can solve the - # problems then; as lazy as possible. - # - # We do support multiple versions in the same file, though, so we sort - # versions here and return the last item in that set. - # - # --daniel 2011-04-06 - latest_ver = @strings[name].keys.sort {|a, b| cmp_versions(a, b) }.last - @strings[name][:current] = @strings[name][latest_ver] - end - rescue LoadError => e - raise unless e.message =~ %r{-- puppet/string/#{name}$} - # ...guess we didn't find the file; return a much better problem. - end - - # Now, either we have the version in our set of strings, or we didn't find - # the version they were looking for. In the future we will support - # loading versioned stuff from some look-aside part of the Ruby load path, - # but we don't need that right now. - # - # So, this comment is a place-holder for that. --daniel 2011-04-06 - return !! @strings[name].has_key?(version) - end - - def self.register(string) - @strings[underscorize(string.name)][string.version] = string - end - - def self.underscorize(name) - unless name.to_s =~ /^[-_a-z]+$/i then - raise ArgumentError, "#{name.inspect} (#{name.class}) is not a valid string name" - end - - name.to_s.downcase.split(/[-_]/).join('_').to_sym - end -end |