* lib/rubygems: Update to RubyGems HEAD(fe61e4c112).

  this version contains new feature that warn invalid SPDX license
  identifiers. https://github.com/rubygems/rubygems/pull/1249
  and #1032, #1023, #1332, #1328, #1306, #1321, #1324
* test/rubygems: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51801 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

9 files changed, 425 insertions, 78 deletions

diff --git a/lib/rubygems/commands/sources_command.rb b/lib/rubygems/commands/sources_command.rb
index 81ff07babc..56d7845c54 100644
--- a/lib/rubygems/commands/sources_command.rb
+++ b/lib/rubygems/commands/sources_command.rb
@@ -102,7 +102,7 @@ Do you want to add this insecure source?
 RubyGems fetches gems from the sources you have configured (stored in your
 ~/.gemrc).
 
-The default source is https://rubygems.org, but you may have older sources
+The default source is https://rubygems.org, but you may have other sources
 configured.  This guide will help you update your sources or configure
 yourself to use your own gem server.
 
diff --git a/lib/rubygems/commands/update_command.rb b/lib/rubygems/commands/update_command.rb
index 001dd777cc..c758ce8a9d 100644
--- a/lib/rubygems/commands/update_command.rb
+++ b/lib/rubygems/commands/update_command.rb
@@ -47,7 +47,7 @@ class Gem::Commands::UpdateCommand < Gem::Command
   end
 
   def arguments # :nodoc:
-    "REGEXP        regexp to search for in gem name"
+    "GEMNAME       name of gem to update"
   end
 
   def defaults_str # :nodoc:
@@ -64,7 +64,7 @@ command to remove old versions.
   end
 
   def usage # :nodoc:
-    "#{program_name} REGEXP [REGEXP ...]"
+    "#{program_name} GEMNAME [GEMNAME ...]"
   end
 
   def check_latest_rubygems version # :nodoc:
diff --git a/lib/rubygems/remote_fetcher.rb b/lib/rubygems/remote_fetcher.rb
index 3f107a3981..e3c78af908 100644
--- a/lib/rubygems/remote_fetcher.rb
+++ b/lib/rubygems/remote_fetcher.rb
@@ -91,7 +91,8 @@ class Gem::RemoteFetcher
     begin
       res = @dns.getresource "_rubygems._tcp.#{host}",
                              Resolv::DNS::Resource::IN::SRV
-    rescue Resolv::ResolvError
+    rescue Resolv::ResolvError => e
+      verbose "Getting SRV record failed: #{e}"
       uri
     else
       target = res.target.to_s.strip
diff --git a/lib/rubygems/request_set/gem_dependency_api.rb b/lib/rubygems/request_set/gem_dependency_api.rb
index cf5c2185d9..73813c9ac7 100644
--- a/lib/rubygems/request_set/gem_dependency_api.rb
+++ b/lib/rubygems/request_set/gem_dependency_api.rb
@@ -396,7 +396,7 @@ Gem dependencies file #{@path} requires #{name} more than once.
   ##
   # Handles the git: option from +options+ for gem +name+.
   #
-  # Returns +true+ if the path option was handled.
+  # Returns +true+ if the gist or git option was handled.
 
   def gem_git name, options # :nodoc:
     if gist = options.delete(:gist) then
diff --git a/lib/rubygems/request_set/lockfile/parser.rb b/lib/rubygems/request_set/lockfile/parser.rb
index 7778b7ae17..f43f6457fd 100644
--- a/lib/rubygems/request_set/lockfile/parser.rb
+++ b/lib/rubygems/request_set/lockfile/parser.rb
@@ -11,13 +11,13 @@ class Gem::RequestSet::Lockfile::Parser
 
   def parse
     until @tokens.empty? do
-      type, data, column, line = get
+      token = get
 
-      case type
+      case token.type
       when :section then
         @tokens.skip :newline
 
-        case data
+        case token.value
         when 'DEPENDENCIES' then
           parse_DEPENDENCIES
         when 'GIT' then
@@ -29,10 +29,10 @@ class Gem::RequestSet::Lockfile::Parser
         when 'PLATFORMS' then
           parse_PLATFORMS
         else
-          type, = get until @tokens.empty? or peek.first == :section
+          token = get until @tokens.empty? or peek.first == :section
         end
       else
-        raise "BUG: unhandled token #{type} (#{data.inspect}) at line #{line} column #{column}"
+        raise "BUG: unhandled token #{token.type} (#{token.value.inspect}) at line #{token.line} column #{token.column}"
       end
     end
   end
@@ -41,35 +41,33 @@ class Gem::RequestSet::Lockfile::Parser
   # Gets the next token for a Lockfile
 
   def get expected_types = nil, expected_value = nil # :nodoc:
-    current_token = @tokens.shift
+    token = @tokens.shift
 
-    type, value, column, line = current_token
+    if expected_types and not Array(expected_types).include? token.type then
+      unget token
 
-    if expected_types and not Array(expected_types).include? type then
-      unget current_token
-
-      message = "unexpected token [#{type.inspect}, #{value.inspect}], " +
+      message = "unexpected token [#{token.type.inspect}, #{token.value.inspect}], " +
                 "expected #{expected_types.inspect}"
 
-      raise Gem::RequestSet::Lockfile::ParseError.new message, column, line, @filename
+      raise Gem::RequestSet::Lockfile::ParseError.new message, token.column, token.line, @filename
     end
 
-    if expected_value and expected_value != value then
-      unget current_token
+    if expected_value and expected_value != token.value then
+      unget token
 
-      message = "unexpected token [#{type.inspect}, #{value.inspect}], " +
+      message = "unexpected token [#{token.type.inspect}, #{token.value.inspect}], " +
                 "expected [#{expected_types.inspect}, " +
                 "#{expected_value.inspect}]"
 
-      raise Gem::RequestSet::Lockfile::ParseError.new message, column, line, @filename
+      raise Gem::RequestSet::Lockfile::ParseError.new message, token.column, token.line, @filename
     end
 
-    current_token
+    token
   end
 
   def parse_DEPENDENCIES # :nodoc:
-    while not @tokens.empty? and :text == peek.first do
-      _, name, = get :text
+    while not @tokens.empty? and :text == peek.type do
+      token = get :text
 
       requirements = []
 
@@ -77,17 +75,17 @@ class Gem::RequestSet::Lockfile::Parser
       when :bang then
         get :bang
 
-        requirements << pinned_requirement(name)
+        requirements << pinned_requirement(token.value)
       when :l_paren then
         get :l_paren
 
         loop do
-          _, op,      = get :requirement
-          _, version, = get :text
+          op      = get(:requirement).value
+          version = get(:text).value
 
           requirements << "#{op} #{version}"
 
-          break unless peek[0] == :comma
+          break unless peek.type == :comma
 
           get :comma
         end
@@ -96,13 +94,13 @@ class Gem::RequestSet::Lockfile::Parser
 
         if peek[0] == :bang then
           requirements.clear
-          requirements << pinned_requirement(name)
+          requirements << pinned_requirement(token.value)
 
           get :bang
         end
       end
 
-      @set.gem name, *requirements
+      @set.gem token.value, *requirements
 
       skip :newline
     end
@@ -113,7 +111,7 @@ class Gem::RequestSet::Lockfile::Parser
 
     while [:entry, 'remote'] == peek.first(2) do
       get :entry, 'remote'
-      _, data, = get :text
+      data = get(:text).value
       skip :newline
 
       sources << Gem::Source.new(data)
@@ -128,8 +126,10 @@ class Gem::RequestSet::Lockfile::Parser
     set = Gem::Resolver::LockSet.new sources
     last_specs = nil
 
-    while not @tokens.empty? and :text == peek.first do
-      _, name, column, = get :text
+    while not @tokens.empty? and :text == peek.type do
+      token = get :text
+      name = token.value
+      column = token.column
 
       case peek[0]
       when :newline then
@@ -139,7 +139,9 @@ class Gem::RequestSet::Lockfile::Parser
       when :l_paren then
         get :l_paren
 
-        type, data, = get [:text, :requirement]
+        token = get [:text, :requirement]
+        type = token.type
+        data = token.value
 
         if type == :text and column == 4 then
           version, platform = data.split '-', 2
@@ -169,16 +171,17 @@ class Gem::RequestSet::Lockfile::Parser
 
   def parse_GIT # :nodoc:
     get :entry, 'remote'
-    _, repository, = get :text
+    repository = get(:text).value
 
     skip :newline
 
     get :entry, 'revision'
-    _, revision, = get :text
+    revision = get(:text).value
 
     skip :newline
 
-    type, value = peek.first 2
+    type = peek.type
+    value = peek.value
     if type == :entry and %w[branch ref tag].include? value then
       get
       get :text
@@ -195,8 +198,10 @@ class Gem::RequestSet::Lockfile::Parser
 
     last_spec = nil
 
-    while not @tokens.empty? and :text == peek.first do
-      _, name, column, = get :text
+    while not @tokens.empty? and :text == peek.type do
+      token = get :text
+      name = token.value
+      column = token.column
 
       case peek[0]
       when :newline then
@@ -204,7 +209,9 @@ class Gem::RequestSet::Lockfile::Parser
       when :l_paren then
         get :l_paren
 
-        type, data, = get [:text, :requirement]
+        token = get [:text, :requirement]
+        type = token.type
+        data = token.value
 
         if type == :text and column == 4 then
           last_spec = set.add_git_spec name, data, repository, revision, true
@@ -227,7 +234,7 @@ class Gem::RequestSet::Lockfile::Parser
 
   def parse_PATH # :nodoc:
     get :entry, 'remote'
-    _, directory, = get :text
+    directory = get(:text).value
 
     skip :newline
 
@@ -239,7 +246,9 @@ class Gem::RequestSet::Lockfile::Parser
     last_spec = nil
 
     while not @tokens.empty? and :text == peek.first do
-      _, name, column, = get :text
+      token = get :text
+      name = token.value
+      column = token.column
 
       case peek[0]
       when :newline then
@@ -247,7 +256,9 @@ class Gem::RequestSet::Lockfile::Parser
       when :l_paren then
         get :l_paren
 
-        type, data, = get [:text, :requirement]
+        token = get [:text, :requirement]
+        type = token.type
+        data = token.value
 
         if type == :text and column == 4 then
           last_spec = set.add_vendor_gem name, directory
@@ -270,7 +281,7 @@ class Gem::RequestSet::Lockfile::Parser
 
   def parse_PLATFORMS # :nodoc:
     while not @tokens.empty? and :text == peek.first do
-      _, name, = get :text
+      name = get(:text).value
 
       @platforms << name
 
@@ -285,14 +296,14 @@ class Gem::RequestSet::Lockfile::Parser
   def parse_dependency name, op # :nodoc:
     return Gem::Dependency.new name, op unless peek[0] == :text
 
-    _, version, = get :text
+    version = get(:text).value
 
     requirements = ["#{op} #{version}"]
 
-    while peek[0] == :comma do
+    while peek.type == :comma do
       get :comma
-      _, op,      = get :requirement
-      _, version, = get :text
+      op      = get(:requirement).value
+      version = get(:text).value
 
       requirements << "#{op} #{version}"
     end
diff --git a/lib/rubygems/request_set/lockfile/tokenizer.rb b/lib/rubygems/request_set/lockfile/tokenizer.rb
index 73c9a834bb..422b03c03f 100644
--- a/lib/rubygems/request_set/lockfile/tokenizer.rb
+++ b/lib/rubygems/request_set/lockfile/tokenizer.rb
@@ -2,6 +2,9 @@ require 'strscan'
 require 'rubygems/request_set/lockfile/parser'
 
 class Gem::RequestSet::Lockfile::Tokenizer
+  Token = Struct.new :type, :value, :column, :line
+  EOF   = Token.new :EOF
+
   def self.from_file file
     new File.read(file), file
   end
@@ -19,11 +22,11 @@ class Gem::RequestSet::Lockfile::Tokenizer
   end
 
   def to_a
-    @tokens
+    @tokens.map { |token| [token.type, token.value, token.column, token.line] }
   end
 
   def skip type
-    @tokens.shift while not @tokens.empty? and peek.first == type
+    @tokens.shift while not @tokens.empty? and peek.type == type
   end
 
   ##
@@ -48,7 +51,7 @@ class Gem::RequestSet::Lockfile::Tokenizer
   alias :shift :next_token
 
   def peek
-    @tokens.first || [:EOF]
+    @tokens.first || EOF
   end
 
   private
@@ -71,7 +74,7 @@ class Gem::RequestSet::Lockfile::Tokenizer
       @tokens <<
         case
         when s.scan(/\r?\n/) then
-          token = [:newline, nil, *token_pos(pos)]
+          token = Token.new(:newline, nil, *token_pos(pos))
           @line_pos = s.pos
           @line += 1
           token
@@ -79,25 +82,25 @@ class Gem::RequestSet::Lockfile::Tokenizer
           if leading_whitespace then
             text = s.matched
             text += s.scan(/[^\s)]*/).to_s # in case of no match
-            [:text, text, *token_pos(pos)]
+            Token.new(:text, text, *token_pos(pos))
           else
-            [:section, s.matched, *token_pos(pos)]
+            Token.new(:section, s.matched, *token_pos(pos))
           end
         when s.scan(/([a-z]+):\s/) then
           s.pos -= 1 # rewind for possible newline
-          [:entry, s[1], *token_pos(pos)]
+          Token.new(:entry, s[1], *token_pos(pos))
         when s.scan(/\(/) then
-          [:l_paren, nil, *token_pos(pos)]
+          Token.new(:l_paren, nil, *token_pos(pos))
         when s.scan(/\)/) then
-          [:r_paren, nil, *token_pos(pos)]
+          Token.new(:r_paren, nil, *token_pos(pos))
         when s.scan(/<=|>=|=|~>|<|>|!=/) then
-          [:requirement, s.matched, *token_pos(pos)]
+          Token.new(:requirement, s.matched, *token_pos(pos))
         when s.scan(/,/) then
-          [:comma, nil, *token_pos(pos)]
+          Token.new(:comma, nil, *token_pos(pos))
         when s.scan(/!/) then
-          [:bang, nil, *token_pos(pos)]
+          Token.new(:bang, nil, *token_pos(pos))
         when s.scan(/[^\s),!]*/) then
-          [:text, s.matched, *token_pos(pos)]
+          Token.new(:text, s.matched, *token_pos(pos))
         else
           raise "BUG: can't create token for: #{s.string[s.pos..-1].inspect}"
         end
diff --git a/lib/rubygems/specification.rb b/lib/rubygems/specification.rb
index 5ddf5fd931..71b77884af 100644
--- a/lib/rubygems/specification.rb
+++ b/lib/rubygems/specification.rb
@@ -563,7 +563,7 @@ class Gem::Specification < Gem::BasicSpecification
   # Ideally you should pick one that is OSI (Open Source Initiative)
   # http://opensource.org/licenses/alphabetical approved.
   #
-  # The most commonly used OSI approved licenses are BSD-3-Clause and MIT.
+  # The most commonly used OSI approved licenses are MIT and Apache-2.0.
   # GitHub also provides a license picker at http://choosealicense.com/.
   #
   # You should specify a license for your gem so that people know how they are
@@ -592,7 +592,7 @@ class Gem::Specification < Gem::BasicSpecification
   # See #license= for more discussion
   #
   # Usage:
-  #   spec.licenses = ['MIT', 'GPL-2']
+  #   spec.licenses = ['MIT', 'GPL-2.0']
 
   def licenses= licenses
     @licenses = Array licenses
@@ -619,6 +619,10 @@ class Gem::Specification < Gem::BasicSpecification
   #   ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-darwin12.4.0]
   #   #<Gem::Version "2.0.0.247">
   #
+  # Because patch-level is taken into account, be very careful specifying using
+  # `<=`: `<= 2.2.2` will not match any patch-level of 2.2.2 after the `p0`
+  # release. It is much safer to specify `< 2.2.3` instead
+  #
   # Usage:
   #
   #  # This gem will work with 1.8.6 or greater...
@@ -626,6 +630,9 @@ class Gem::Specification < Gem::BasicSpecification
   #
   #  # Only with ruby 2.0.x
   #  spec.required_ruby_version = '~> 2.0'
+  #
+  #  # Only with ruby between 2.2.0 and 2.2.2
+  #  spec.required_ruby_version = ['>= 2.2.0', '< 2.2.3']
 
   def required_ruby_version= req
     @required_ruby_version = Gem::Requirement.create req
@@ -1000,7 +1007,7 @@ class Gem::Specification < Gem::BasicSpecification
 
   def self.find_by_path path
     stub = stubs.find { |spec|
-      spec.contains_requirable_file? path
+      spec.contains_requirable_file? path if spec
     }
     stub && stub.to_spec
   end
@@ -1011,7 +1018,7 @@ class Gem::Specification < Gem::BasicSpecification
 
   def self.find_inactive_by_path path
     stub = stubs.find { |s|
-      s.contains_requirable_file? path unless s.activated?
+      s.contains_requirable_file? path unless s.nil? || s.activated?
     }
     stub && stub.to_spec
   end
@@ -1023,7 +1030,7 @@ class Gem::Specification < Gem::BasicSpecification
     # TODO: do we need these?? Kill it
     specs = unresolved_deps.values.map { |dep| dep.to_specs }.flatten
 
-    specs.find_all { |spec| spec.contains_requirable_file? path }
+    specs.find_all { |spec| spec.contains_requirable_file? path if spec }
   end
 
   ##
@@ -2712,11 +2719,18 @@ class Gem::Specification < Gem::BasicSpecification
         raise Gem::InvalidSpecificationException,
           "each license must be 64 characters or less"
       end
+
+      if !Gem::Licenses::IDENTIFIERS.include?(license) && !license.eql?(Gem::Licenses::NONSTANDARD)
+        warning <<-warning
+WARNING: license value '#{license}' is invalid.  Use a license identifier from
+http://spdx.org/licenses or '#{Gem::Licenses::NONSTANDARD}' for a nonstandard license.
+        warning
+      end
     }
 
     warning <<-warning if licenses.empty?
-licenses is empty, but is recommended.  Use a license abbreviation from:
-http://opensource.org/licenses/alphabetical
+licenses is empty, but is recommended.  Use a license identifier from
+http://spdx.org/licenses or '#{Gem::Licenses::NONSTANDARD}' for a nonstandard license.
     warning
 
     validate_permissions
@@ -2788,23 +2802,26 @@ http://opensource.org/licenses/alphabetical
   # versioning.
 
   def validate_dependencies # :nodoc:
-    seen = {}
+    # NOTE: see REFACTOR note in Gem::Dependency about types - this might be brittle
+    seen = Gem::Dependency::TYPES.inject({}) { |types, type| types.merge({ type => {}}) }
 
+    error_messages = []
+    warning_messages = []
     dependencies.each do |dep|
-      if prev = seen[dep.name] then
-        raise Gem::InvalidSpecificationException, <<-MESSAGE
+      if prev = seen[dep.type][dep.name] then
+        error_messages << <<-MESSAGE
 duplicate dependency on #{dep}, (#{prev.requirement}) use:
-    add_runtime_dependency '#{dep.name}', '#{dep.requirement}', '#{prev.requirement}'
+    add_#{dep.type}_dependency '#{dep.name}', '#{dep.requirement}', '#{prev.requirement}'
         MESSAGE
       end
 
-      seen[dep.name] = dep
+      seen[dep.type][dep.name] = dep
 
       prerelease_dep = dep.requirements_list.any? do |req|
         Gem::Requirement.new(req).prerelease?
       end
 
-      warning "prerelease dependency on #{dep} is not recommended" if
+      warning_messages << "prerelease dependency on #{dep} is not recommended" if
         prerelease_dep
 
       overly_strict = dep.requirement.requirements.length == 1 &&
@@ -2820,7 +2837,7 @@ duplicate dependency on #{dep}, (#{prev.requirement}) use:
 
         base = dep_version.segments.first 2
 
-        warning <<-WARNING
+        warning_messages << <<-WARNING
 pessimistic dependency on #{dep} may be overly strict
   if #{dep.name} is semantically versioned, use:
     add_#{dep.type}_dependency '#{dep.name}', '~> #{base.join '.'}', '>= #{dep_version}'
@@ -2842,13 +2859,19 @@ pessimistic dependency on #{dep} may be overly strict
                    ", '>= #{dep_version}'"
                  end
 
-        warning <<-WARNING
+        warning_messages << <<-WARNING
 open-ended dependency on #{dep} is not recommended
   if #{dep.name} is semantically versioned, use:
     add_#{dep.type}_dependency '#{dep.name}', '~> #{base.join '.'}'#{bugfix}
         WARNING
       end
     end
+    if error_messages.any?
+      raise Gem::InvalidSpecificationException, error_messages.join
+    end
+    if warning_messages.any?
+      warning_messages.each { |warning_message| warning warning_message }
+    end
   end
 
   ##
diff --git a/lib/rubygems/test_case.rb b/lib/rubygems/test_case.rb
index 9d46be7091..6d95f08309 100644
--- a/lib/rubygems/test_case.rb
+++ b/lib/rubygems/test_case.rb
@@ -1222,8 +1222,8 @@ Also, a list:
   end
 
   @@ruby = rubybin
-  @@good_rake = "#{rubybin} #{File.expand_path('../../../test/rubygems/good_rake.rb', __FILE__)}"
-  @@bad_rake = "#{rubybin} #{File.expand_path('../../../test/rubygems/bad_rake.rb', __FILE__)}"
+  @@good_rake = "#{rubybin} \"#{File.expand_path('../../../test/rubygems/good_rake.rb', __FILE__)}\""
+  @@bad_rake = "#{rubybin} \"#{File.expand_path('../../../test/rubygems/bad_rake.rb', __FILE__)}\""
 
   ##
   # Construct a new Gem::Dependency.
diff --git a/lib/rubygems/util/licenses.rb b/lib/rubygems/util/licenses.rb
new file mode 100644
index 0000000000..280d148625
--- /dev/null
+++ b/lib/rubygems/util/licenses.rb
@@ -0,0 +1,309 @@
+class Gem::Licenses
+  NONSTANDARD = 'Nonstandard'.freeze
+
+  # Software Package Data Exchange (SPDX) standard open-source software
+  # license identifiers
+  IDENTIFIERS = %w(
+    AAL
+      ADSL
+      AFL-1.1
+      AFL-1.2
+      AFL-2.0
+      AFL-2.1
+      AFL-3.0
+      AGPL-1.0
+      AGPL-3.0
+      AMDPLPA
+      AML
+      AMPAS
+      ANTLR-PD
+      APAFML
+      APL-1.0
+      APSL-1.0
+      APSL-1.1
+      APSL-1.2
+      APSL-2.0
+      Abstyles
+      Adobe-2006
+      Adobe-Glyph
+      Afmparse
+      Aladdin
+      Apache-1.0
+      Apache-1.1
+      Apache-2.0
+      Artistic-1.0
+      Artistic-1.0-Perl
+      Artistic-1.0-cl8
+      Artistic-2.0
+      BSD-2-Clause
+      BSD-2-Clause-FreeBSD
+      BSD-2-Clause-NetBSD
+      BSD-3-Clause
+      BSD-3-Clause-Attribution
+      BSD-3-Clause-Clear
+      BSD-3-Clause-LBNL
+      BSD-4-Clause
+      BSD-4-Clause-UC
+      BSD-Protection
+      BSL-1.0
+      Bahyph
+      Barr
+      Beerware
+      BitTorrent-1.0
+      BitTorrent-1.1
+      Borceux
+      CATOSL-1.1
+      CC-BY-1.0
+      CC-BY-2.0
+      CC-BY-2.5
+      CC-BY-3.0
+      CC-BY-4.0
+      CC-BY-NC-1.0
+      CC-BY-NC-2.0
+      CC-BY-NC-2.5
+      CC-BY-NC-3.0
+      CC-BY-NC-4.0
+      CC-BY-NC-ND-1.0
+      CC-BY-NC-ND-2.0
+      CC-BY-NC-ND-2.5
+      CC-BY-NC-ND-3.0
+      CC-BY-NC-ND-4.0
+      CC-BY-NC-SA-1.0
+      CC-BY-NC-SA-2.0
+      CC-BY-NC-SA-2.5
+      CC-BY-NC-SA-3.0
+      CC-BY-NC-SA-4.0
+      CC-BY-ND-1.0
+      CC-BY-ND-2.0
+      CC-BY-ND-2.5
+      CC-BY-ND-3.0
+      CC-BY-ND-4.0
+      CC-BY-SA-1.0
+      CC-BY-SA-2.0
+      CC-BY-SA-2.5
+      CC-BY-SA-3.0
+      CC-BY-SA-4.0
+      CC0-1.0
+      CDDL-1.0
+      CDDL-1.1
+      CECILL-1.0
+      CECILL-1.1
+      CECILL-2.0
+      CECILL-B
+      CECILL-C
+      CNRI-Jython
+      CNRI-Python
+      CNRI-Python-GPL-Compatible
+      CPAL-1.0
+      CPL-1.0
+      CPOL-1.02
+      CUA-OPL-1.0
+      Caldera
+      ClArtistic
+      Condor-1.1
+      Crossword
+      Cube
+      D-FSL-1.0
+      DOC
+      DSDP
+      Dotseqn
+      ECL-1.0
+      ECL-2.0
+      EFL-1.0
+      EFL-2.0
+      EPL-1.0
+      EUDatagrid
+      EUPL-1.0
+      EUPL-1.1
+      Entessa
+      ErlPL-1.1
+      Eurosym
+      FSFUL
+      FSFULLR
+      FTL
+      Fair
+      Frameworx-1.0
+      FreeImage
+      GFDL-1.1
+      GFDL-1.2
+      GFDL-1.3
+      GL2PS
+      GPL-1.0
+      GPL-2.0
+      GPL-3.0
+      Giftware
+      Glide
+      Glulxe
+      HPND
+      HaskellReport
+      IBM-pibs
+      ICU
+      IJG
+      IPA
+      IPL-1.0
+      ISC
+      ImageMagick
+      Imlib2
+      Intel
+      Intel-ACPI
+      JSON
+      JasPer-2.0
+      LGPL-2.0
+      LGPL-2.1
+      LGPL-3.0
+      LGPLLR
+      LPL-1.0
+      LPL-1.02
+      LPPL-1.0
+      LPPL-1.1
+      LPPL-1.2
+      LPPL-1.3a
+      LPPL-1.3c
+      Latex2e
+      Leptonica
+      Libpng
+      MIT
+      MIT-CMU
+      MIT-advertising
+      MIT-enna
+      MIT-feh
+      MITNFA
+      MPL-1.0
+      MPL-1.1
+      MPL-2.0
+      MPL-2.0-no-copyleft-exception
+      MS-PL
+      MS-RL
+      MTLL
+      MakeIndex
+      MirOS
+      Motosoto
+      Multics
+      Mup
+      NASA-1.3
+      NBPL-1.0
+      NCSA
+      NGPL
+      NLPL
+      NOSL
+      NPL-1.0
+      NPL-1.1
+      NPOSL-3.0
+      NRL
+      NTP
+      Naumen
+      NetCDF
+      Newsletr
+      Nokia
+      Noweb
+      Nunit
+      OCLC-2.0
+      ODbL-1.0
+      OFL-1.0
+      OFL-1.1
+      OGTSL
+      OLDAP-1.1
+      OLDAP-1.2
+      OLDAP-1.3
+      OLDAP-1.4
+      OLDAP-2.0
+      OLDAP-2.0.1
+      OLDAP-2.1
+      OLDAP-2.2
+      OLDAP-2.2.1
+      OLDAP-2.2.2
+      OLDAP-2.3
+      OLDAP-2.4
+      OLDAP-2.5
+      OLDAP-2.6
+      OLDAP-2.7
+      OLDAP-2.8
+      OML
+      OPL-1.0
+      OSL-1.0
+      OSL-1.1
+      OSL-2.0
+      OSL-2.1
+      OSL-3.0
+      OpenSSL
+      PDDL-1.0
+      PHP-3.0
+      PHP-3.01
+      Plexus
+      PostgreSQL
+      Python-2.0
+      QPL-1.0
+      Qhull
+      RHeCos-1.1
+      RPL-1.1
+      RPL-1.5
+      RPSL-1.0
+      RSA-MD
+      RSCPL
+      Rdisc
+      Ruby
+      SAX-PD
+      SCEA
+      SGI-B-1.0
+      SGI-B-1.1
+      SGI-B-2.0
+      SISSL
+      SISSL-1.2
+      SMLNJ
+      SNIA
+      SPL-1.0
+      SWL
+      Saxpath
+      SimPL-2.0
+      Sleepycat
+      Spencer-86
+      Spencer-94
+      Spencer-99
+      SugarCRM-1.1.3
+      TCL
+      TMate
+      TORQUE-1.1
+      TOSL
+      UPL-1.0
+      Unicode-TOU
+      Unlicense
+      VOSTROM
+      VSL-1.0
+      Vim
+      W3C
+      W3C-19980720
+      WTFPL
+      Watcom-1.0
+      Wsuipa
+      X11
+      XFree86-1.1
+      XSkat
+      Xerox
+      Xnet
+      YPL-1.0
+      YPL-1.1
+      ZPL-1.1
+      ZPL-2.0
+      ZPL-2.1
+      Zed
+      Zend-2.0
+      Zimbra-1.3
+      Zimbra-1.4
+      Zlib
+      bzip2-1.0.5
+      bzip2-1.0.6
+      diffmark
+      dvipdfm
+      eGenix
+      gSOAP-1.3b
+      gnuplot
+      iMatix
+      libtiff
+      mpich2
+      psfrag
+      psutils
+      xinetd
+      xpp
+      zlib-acknowledgement
+  ).freeze
+end