Rework ruby gems

svn path=/nixpkgs/trunk/; revision=25654

pkgs/development/interpreters/ruby/gem_hook.patch

@@ -0,0 +1,18 @@
+diff --git a/lib/rubygems/installer.rb b/lib/rubygems/installer.rb
+index d1ef3cb..bf15652 100755
+--- a/lib/rubygems/installer.rb
++++ b/lib/rubygems/installer.rb
+@@ -545,6 +545,13 @@ Results logged to #{File.join(Dir.pwd, 'gem_make.out')}
+ 
+       say path if Gem.configuration.really_verbose
+     end
++
++    if !ENV['NIX_POST_EXTRACT_FILES_HOOK'].nil?
++      print "\nrunning NIX_POST_EXTRACT_FILES_HOOK #{ENV['NIX_POST_EXTRACT_FILES_HOOK']} #{@gem_dir}\n"
++      print `#{ENV['NIX_POST_EXTRACT_FILES_HOOK']} #{@gem_dir}`
++      print "\nrunning NIX_POST_EXTRACT_FILES_HOOK done\n"
++    end
++
+   end
+ 
+   ##

pkgs/development/interpreters/ruby/gem_nix_command.patch

@@ -1,266 +0,0 @@
-diff --git a/lib/rubygems/command_manager.rb b/lib/rubygems/command_manager.rb
-index 0a19016..ef66d30 100755
---- a/lib/rubygems/command_manager.rb
-+++ b/lib/rubygems/command_manager.rb
-@@ -70,6 +70,7 @@ class Gem::CommandManager
-     register_command :unpack
-     register_command :update
-     register_command :which
-+    register_command :nix
-   end
- 
-   ##
-
-diff --git a/lib/rubygems/commands/nix_command.rb b/lib/rubygems/commands/nix_command.rb
-new file mode 100644
-index 0000000..24f3479
---- /dev/null
-+++ b/lib/rubygems/commands/nix_command.rb
-@@ -0,0 +1,228 @@
-+require 'net/http'
-+require 'rubygems/command'
-+require 'rubygems/doc_manager'
-+require 'rubygems/install_update_options'
-+require 'rubygems/dependency_installer'
-+require 'rubygems/local_remote_options'
-+require 'rubygems/validator'
-+require 'rubygems/exceptions'
-+require 'rubygems/version_option'
-+require 'rubygems/version'
-+require 'open3'
-+
-+
-+def nixname(gem)
-+  s = "#{gem}" == gem ? gem : gem.full_name
-+  s.gsub(/[.-]/,'_')
-+end
-+
-+def nixdescription(spec)
-+  desc_from_spec = spec.description
-+  desc = desc_from_spec.sub(/[.].*/,'') # only keep first sentence
-+  desc = desc.length > 120 \
-+    ? "description = ''#{ desc[0..120] }''; # cut to 120 chars" \
-+    : "description = ''#{ desc }'';"
-+  desc = desc.sub(/'';$/,"[...]'';") if desc != desc_from_spec
-+  desc.gsub("\n"," ") # no \ns in description
-+end
-+
-+##
-+# tool creating nix expression to install gems (from ruby forge etc)
-+#
-+# this is work in progress
-+
-+class Gem::Commands::NixCommand < Gem::Command
-+
-+  include Gem::VersionOption
-+  include Gem::LocalRemoteOptions
-+  include Gem::InstallUpdateOptions
-+
-+  def initialize
-+    defaults = Gem::DependencyInstaller::DEFAULT_OPTIONS.merge({
-+    })
-+    super 'nix', 'create a nix file containing expressions of the gems', defaults
-+  end
-+
-+  def description # :nodoc:
-+    <<-EOF
-+      create a nix file containing expressions of the gems
-+      There are many gems. So it's best to only specify some target gems and
-+      take them into acocunt with their deps
-+      TODO more details
-+    EOF
-+  end
-+
-+  def usage # :nodoc:
-+    "#{program_name} GEMNAME [GEMNAME ...] [options] -- --build-flags"
-+  end
-+
-+  def arguments # :nodoc:
-+    "GEMNAME       name of gem to be added to the expressions file"
-+  end
-+
-+  def defaults_str # :nodoc:
-+    # what to put in here ? TODO (probably nothing is ok)
-+    ""
-+  end
-+
-+  def execute
-+
-+    begin
-+      @prerelease = false;
-+
-+      args = options[:args];
-+
-+      @gems_with_deps = {}
-+      @seen = {}
-+
-+      # args to dep informations
-+      args.map { |arg|
-+        if arg =~ /(.+)-?(.*)?/ then
-+          gem_name = $1
-+          version =  $2.empty? ?  Gem::Requirement.default : Gem::Version.new($2)
-+        else
-+          raise Gem::CommandLineError, "could'nt parse arg. expected: name or name-version"
-+        end
-+
-+        warn "adding #{gem_name}\n"
-+
-+        adddep(Gem::Dependency.new gem_name, version)
-+      }
-+
-+      warn " total: #{@gems_with_deps.length}"
-+
-+
-+      out = "
-+         # WARNING: automatically generated CODE
-+         # This section has been generated by gem nix #{args.join(" ")}
-+         # the gem nix command has been added by a nix patch to ruby gems
-+      "
-+      # define aliases
-+      aliases = {}
-+      @gems_with_deps.each{ |key, (spec, src, deps)|
-+        aliases[spec.name] = spec \
-+          if aliases[spec.name].nil? || aliases[spec.name].version < spec.version
-+
-+           src_url = "http://gems.rubyforge.org/gems/#{spec.full_name}.gem"
-+
-+         # [> get true mirror url reading redirect contents
-+         #  h = Net::HTTP.new('gems.rubyforge.org', 80)
-+         #  resp, data = h.get("/gems/#{spec.full_name}.gem", nil)
-+         #  if resp.code == "200" then
-+         #    src_url = "http://gems.rubyforge.org/gems/#{spec.full_name}.gem"
-+         #  else if resp.code == "302" then
-+         #      src_url = resp['location']
-+         #      print "redirection: http://gems.rubyforge.org/gems/#{spec.full_name}.gem -> #{src_url}\n"
-+         #    else
-+         #      raise Gem::DependencyError.new("unkown http return code #{resp} #{data}")
-+         #    end
-+         #  end
-+
-+         #raise Gem::DependencyError("src_url is nil, 302 redirection failed?") if src_url.nil?
-+
-+         out += "
-+  #{nixname spec} = rubyDerivation {
-+     name = \"ruby-#{spec.full_name}\"; # full_name
-+     nameNoVersion = \"#{nixname spec.name}\";
-+     propagatedBuildInputs = [ #{deps.map {|n| n.nil? ? "" : (nixname n) }.join(" ")} ];
-+     src = fetchurl {
-+       url = \"#{src_url}\";
-+       sha256 = \"#{nixhashof src_url}\";
-+     };
-+     meta = {
-+       homepage = \"#{spec.homepage}\";
-+       license = [#{spec.licenses.map{|l| "\"#{l}\""}.join(" ") }]; # one of ?
-+       #{nixdescription spec}
-+       longDescription = ''#{ spec.description }'';
-+     };
-+  };\n"
-+      }
-+
-+      out += "\n# aliases\n"
-+      aliases.each { |key, spec |
-+        out += "#{nixname key}=#{nixname spec};\n"
-+      }
-+
-+      print out
-+      exit_code = 0
-+
-+    rescue => e
-+      puts e.inspect
-+      puts e.backtrace
-+    end
-+
-+
-+  end
-+
-+  # helper funtions ================
-+  
-+  def adddep(dep)
-+    gem = find_gem_with_source(dep)
-+    raise Gem::CommandLineError, "couldn't find #{dep}" if gem.nil?
-+    full_name = gem[0].full_name
-+
-+    return if @seen[full_name]
-+    @seen[full_name] = true # there maybe circular dependencies. thus mark this gem seen as early as possible
-+
-+    # development deps can't be found. Some are old. Thus only add rutime dependencies
-+    deps = gem[0].dependencies.find_all { |d| d.type == :runtime }
-+
-+    warn " total deps of #{full_name}: #{deps.length}"
-+
-+    dep_specs = []
-+    # recurse while collecting deps
-+    deps.each {|dep_var| dep_specs.push(adddep(dep_var)) }
-+    
-+
-+    @gems_with_deps[full_name] = [
-+      gem[0], # spec
-+      gem[1], # src
-+      dep_specs # deps
-+    ]
-+    gem[0] # only return spec, no source for dep list
-+  end
-+
-+
-+  # copied from dependency_installer, stripped
-+  def find_gem_with_source(dep)
-+    gems_and_sources = []
-+
-+    # no local 
-+
-+      requirements = dep.version_requirements.requirements.map do |req, ver|
-+        req
-+      end
-+
-+      all = true
-+      found = Gem::SpecFetcher.fetcher.fetch dep, all, true, @prerelease
-+      found.reverse[0]
-+  end
-+
-+
-+  def nixhashof(src)
-+    cashfile="#{ENV['HOME']}/.nix-ruby-gems-cache"
-+    cash = {}
-+    if FileTest.exists?(cashfile)
-+      File.open(cashfile,'r') do |f| Marshal.load(f) end
-+    end
-+
-+    if cash[src].nil? then
-+      tmp="/tmp/ruby-gems-nix-tmp-file"
-+      system("nix-prefetch-url #{src.gsub(/([:= `$;])/,'\\\\\1')} > #{tmp} 2>/dev/null")
-+      if $? == 0
-+        file = File.new(tmp)
-+        hash = file.readlines().first().split("\n")[0] # remove trailing \n
-+        file.close()
-+        File.delete(tmp)
-+        cash[src] = hash
-+      else
-+        cash[src] = "no hash"
-+      end
-+
-+      File.open(cashfile, "w+") do |f| Marshal.dump(cash, f) end
-+    end
-+
-+    return cash[src]
-+  end
-+
-+end
-
-diff --git a/lib/rubygems/installer.rb b/lib/rubygems/installer.rb
-index d1ef3cb..bf15652 100755
---- a/lib/rubygems/installer.rb
-+++ b/lib/rubygems/installer.rb
-@@ -545,6 +545,13 @@ Results logged to #{File.join(Dir.pwd, 'gem_make.out')}
- 
-       say path if Gem.configuration.really_verbose
-     end
-+
-+    if !ENV['NIX_POST_EXTRACT_FILES_HOOK'].nil?
-+      print "\nrunning NIX_POST_EXTRACT_FILES_HOOK #{ENV['NIX_POST_EXTRACT_FILES_HOOK']} #{@gem_dir}\n"
-+      print `#{ENV['NIX_POST_EXTRACT_FILES_HOOK']} #{@gem_dir}`
-+      print "\nrunning NIX_POST_EXTRACT_FILES_HOOK done\n"
-+    end
-+
-   end
- 
-   ##

pkgs/development/interpreters/ruby/gems-generated.nix

@@ -0,0 +1,34 @@
+# WARNING: automatically generated file
+# Generated by 'gem nix' command that comes from 'nix' gem
+g: # Get dependencies from patched gems
+{
+  aliases = {
+    nix = g.nix_0_1;
+    rake = g.rake_0_8_7;
+  };
+  gem_nix_args = [ ''nix'' ''rake'' ];
+  gems = {
+    nix_0_1 = {
+      basename = ''nix'';
+      meta = {
+        description = ''Nix package manager interface'';
+        homepage = ''http://gitorious.org/ruby-nix'';
+        longDescription = ''Adds 'gem nix' command that dumps given set of gems to format suitable for Nix package manager'';
+      };
+      name = ''nix-0.1'';
+      requiredGems = [  ];
+      sha256 = ''16lc3yfjcsm1s5jjfazlwia1vhy6x401f0mam79r2qkcic70xnap'';
+    };
+    rake_0_8_7 = {
+      basename = ''rake'';
+      meta = {
+        description = ''Ruby based make-like utility.'';
+        homepage = ''http://rake.rubyforge.org'';
+        longDescription = ''Rake is a Make-like program implemented in Ruby. Tasks and dependencies are specified in standard Ruby syntax.'';
+      };
+      name = ''rake-0.8.7'';
+      requiredGems = [  ];
+      sha256 = ''03z1zm7xwl2r9v945ambwbd9sn2smbi34xldmac7qjcmsvd7pcqh'';
+    };
+  };
+}

pkgs/development/interpreters/ruby/rubygems.nix

@@ -43,5 +43,5 @@ rec {
 
   # TODO don't resolve 302 redirects but make nix resolve in fetchurl and
   # nix-prefetch-url. This should be done on stdenv-updates.
-  patches = [ ./gem_nix_command.patch /* see longDescription above */ ];
+  patches = [ ./gem_hook.patch /* see longDescription above */ ];
 }

pkgs/top-level/all-packages.nix

@@ -2348,9 +2348,7 @@ let
   #ruby19 = import ../development/interpreters/ruby/ruby-19.nix { inherit ruby18 fetchurl; };
   ruby = ruby18;
 
-  rubyLibs = recurseIntoAttrs (import ../development/interpreters/ruby/libs.nix {
-    inherit pkgs stdenv;
-  });
+  rubyLibs = recurseIntoAttrs (callPackage ../development/interpreters/ruby/libs.nix { });
 
   rake = callPackage ../development/ruby-modules/rake { };
 
@@ -2360,7 +2358,7 @@ let
     withBioconductor = getConfig ["rLang" "withBioconductor"] false;
   };
 
-  rubygemsFun = ruby: builderDefsPackage (import ../development/interpreters/ruby/gems.nix) {
+  rubygemsFun = ruby: builderDefsPackage (import ../development/interpreters/ruby/rubygems.nix) {
     inherit ruby makeWrapper;
   };
   rubygems = rubygemsFun ruby;