How to use each method of Gem Package

Best Rr_ruby code snippet using Gem.each

mrbgem_spec.rake

Source:mrbgem_spec.rake

...36        MRuby::Gem.current = self37      end38      def setup39        MRuby::Gem.current = self40        MRuby::Build::COMMANDS.each do |command|41          instance_variable_set("@#{command}", @build.send(command).clone)42        end43        @linker = LinkerConfig.new([], [], [], [], [])44        @rbfiles = Dir.glob("#{dir}/mrblib/**/*.rb").sort45        @objs = Dir.glob("#{dir}/src/*.{c,cpp,cxx,cc,m,asm,s,S}").map do |f|46          objfile(f.relative_path_from(@dir).to_s.pathmap("#{build_dir}/%X"))47        end48        @generate_functions = !(@rbfiles.empty? && @objs.empty?)49        @objs << objfile("#{build_dir}/gem_init") if @generate_functions50        @test_rbfiles = Dir.glob("#{dir}/test/**/*.rb")51        @test_objs = Dir.glob("#{dir}/test/*.{c,cpp,cxx,cc,m,asm,s,S}").map do |f|52          objfile(f.relative_path_from(dir).to_s.pathmap("#{build_dir}/%X"))53        end54        @custom_test_init = !@test_objs.empty?55        @test_preload = nil # 'test/assert.rb'56        @test_args = {}57        @bins = []58        @requirements = []59        @dependencies, @conflicts = [], []60        @export_include_paths = []61        @export_include_paths << "#{dir}/include" if File.directory? "#{dir}/include"62        instance_eval(&@initializer)63        if !name || !licenses || !authors64          fail "#{name || dir} required to set name, license(s) and author(s)"65        end66        build.libmruby << @objs67        instance_eval(&@build_config_initializer) if @build_config_initializer68        compilers.each do |compiler|69          compiler.define_rules build_dir, "#{dir}"70          compiler.defines << %Q[MRBGEM_#{funcname.upcase}_VERSION=#{version}]71          compiler.include_paths << "#{dir}/include" if File.directory? "#{dir}/include"72        end73        define_gem_init_builder if @generate_functions74      end75      def add_dependency(name, *requirements)76        default_gem = requirements.last.kind_of?(Hash) ? requirements.pop : nil77        requirements = ['>= 0.0.0'] if requirements.empty?78        requirements.flatten!79        @dependencies << {:gem => name, :requirements => requirements, :default => default_gem}80      end81      def add_test_dependency(*args)82        add_dependency(*args) if build.test_enabled?83      end84      def add_conflict(name, *req)85        @conflicts << {:gem => name, :requirements => req.empty? ? nil : req}86      end87      def self.bin=(bin)88        @bins = [bin].flatten89      end90      def build_dir91        "#{build.build_dir}/mrbgems/#{name}"92      end93      def test_rbireps94        "#{build_dir}/gem_test.c"95      end96      def funcname97        @funcname ||= @name.gsub('-', '_')98      end99      def compilers100        MRuby::Build::COMPILERS.map do |c|101          instance_variable_get("@#{c}")102        end103      end104      def define_gem_init_builder105        file objfile("#{build_dir}/gem_init") => [ "#{build_dir}/gem_init.c", File.join(dir, "mrbgem.rake") ]106        file "#{build_dir}/gem_init.c" => [build.mrbcfile, __FILE__] + [rbfiles].flatten do |t|107          FileUtils.mkdir_p build_dir108          generate_gem_init("#{build_dir}/gem_init.c")109        end110      end111      def generate_gem_init(fname)112        open(fname, 'w') do |f|113          print_gem_init_header f114          build.mrbc.run f, rbfiles, "gem_mrblib_irep_#{funcname}" unless rbfiles.empty?115          f.puts %Q[void mrb_#{funcname}_gem_init(mrb_state *mrb);]116          f.puts %Q[void mrb_#{funcname}_gem_final(mrb_state *mrb);]117          f.puts %Q[]118          f.puts %Q[void GENERATED_TMP_mrb_#{funcname}_gem_init(mrb_state *mrb) {]119          f.puts %Q[  int ai = mrb_gc_arena_save(mrb);]120          f.puts %Q[  mrb_#{funcname}_gem_init(mrb);] if objs != [objfile("#{build_dir}/gem_init")]121          unless rbfiles.empty?122            f.puts %Q[  mrb_load_irep(mrb, gem_mrblib_irep_#{funcname});]123            f.puts %Q[  if (mrb->exc) {]124            f.puts %Q[    mrb_print_error(mrb);]125            f.puts %Q[    exit(EXIT_FAILURE);]126            f.puts %Q[  }]127          end128          f.puts %Q[  mrb_gc_arena_restore(mrb, ai);]129          f.puts %Q[}]130          f.puts %Q[]131          f.puts %Q[void GENERATED_TMP_mrb_#{funcname}_gem_final(mrb_state *mrb) {]132          f.puts %Q[  mrb_#{funcname}_gem_final(mrb);] if objs != [objfile("#{build_dir}/gem_init")]133          f.puts %Q[}]134        end135      end # generate_gem_init136      def print_gem_comment(f)137        f.puts %Q[/*]138        f.puts %Q[ * This file is loading the irep]139        f.puts %Q[ * Ruby GEM code.]140        f.puts %Q[ *]141        f.puts %Q[ * IMPORTANT:]142        f.puts %Q[ *   This file was generated!]143        f.puts %Q[ *   All manual changes will get lost.]144        f.puts %Q[ */]145      end146      def print_gem_init_header(f)147        print_gem_comment(f)148        f.puts %Q[#include <stdlib.h>] unless rbfiles.empty?149        f.puts %Q[#include "mruby.h"]150        f.puts %Q[#include "mruby/irep.h"] unless rbfiles.empty?151      end152      def print_gem_test_header(f)153        print_gem_comment(f)154        f.puts %Q[#include <stdio.h>]155        f.puts %Q[#include <stdlib.h>]156        f.puts %Q[#include "mruby.h"]157        f.puts %Q[#include "mruby/irep.h"]158        f.puts %Q[#include "mruby/variable.h"]159        f.puts %Q[#include "mruby/hash.h"] unless test_args.empty?160      end161      def test_dependencies162        [@name]163      end164      def custom_test_init?165        @custom_test_init166      end167      def version_ok?(req_versions)168        req_versions.map do |req|169          cmp, ver = req.split170          cmp_result = Version.new(version) <=> Version.new(ver)171          case cmp172          when '=' then cmp_result == 0173          when '!=' then cmp_result != 0174          when '>' then cmp_result == 1175          when '<' then cmp_result == -1176          when '>=' then cmp_result >= 0177          when '<=' then cmp_result <= 0178          when '~>'179            Version.new(version).twiddle_wakka_ok?(Version.new(ver))180          else181            fail "Comparison not possible with '#{cmp}'"182          end183        end.all?184      end185    end # Specification186    class Version187      include Comparable188      include Enumerable189      def <=>(other)190        ret = 0191        own = to_enum192        other.each do |oth|193          begin194            ret = own.next <=> oth195          rescue StopIteration196            ret = 0 <=> oth197          end198          break unless ret == 0199        end200        ret201      end202      # ~> compare algorithm203      #204      # Example:205      #    ~> 2.2   means >= 2.2.0 and < 3.0.0206      #    ~> 2.2.0 means >= 2.2.0 and < 2.3.0207      def twiddle_wakka_ok?(other)208        gr_or_eql = (self <=> other) >= 0209        still_minor = (self <=> other.skip_minor) < 0210        gr_or_eql and still_minor211      end212      def skip_minor213        a = @ary.dup214        a.slice!(-1)215        a[-1] = a[-1].succ216        a217      end218      def initialize(str)219        @str = str220        @ary = @str.split('.').map(&:to_i)221      end222      def each(&block); @ary.each(&block); end223      def [](index); @ary[index]; end224      def []=(index, value)225        @ary[index] = value226        @str = @ary.join('.')227      end228      def slice!(index)229        @ary.slice!(index)230        @str = @ary.join('.')231      end232    end # Version233    class List234      include Enumerable235      def initialize236        @ary = []237      end238      def each(&b)239        @ary.each(&b)240      end241      def <<(gem)242        unless @ary.detect {|g| g.dir == gem.dir }243          @ary << gem244        else245          # GEM was already added to this list246        end247      end248      def empty?249        @ary.empty?250      end251      def generate_gem_table build252        gem_table = @ary.reduce({}) { |res,v| res[v.name] = v; res }253        default_gems = []254        each do |g|255          g.dependencies.each do |dep|256            unless gem_table.key? dep[:gem]257              if dep[:default]; default_gems << dep258              elsif File.exist? "#{MRUBY_ROOT}/mrbgems/#{dep[:gem]}" # check core259                default_gems << { :gem => dep[:gem], :default => { :core => dep[:gem] } }260              else # fallback to mgem-list261                default_gems << { :gem => dep[:gem], :default => { :mgem => dep[:gem] } }262              end263            end264          end265        end266        until default_gems.empty?267          def_gem = default_gems.pop268          spec = build.gem def_gem[:default]269          fail "Invalid gem name: #{spec.name} (Expected: #{def_gem[:gem]})" if spec.name != def_gem[:gem]270          spec.setup271          spec.dependencies.each do |dep|272            unless gem_table.key? dep[:gem]273              if dep[:default]; default_gems << dep274              else default_gems << { :gem => dep[:gem], :default => { :mgem => dep[:gem] } }275              end276            end277          end278          gem_table[spec.name] = spec279        end280        each do |g|281          g.dependencies.each do |dep|282            name = dep[:gem]283            req_versions = dep[:requirements]284            dep_g = gem_table[name]285            # check each GEM dependency against all available GEMs286            if dep_g.nil?287              fail "The GEM '#{g.name}' depends on the GEM '#{name}' but it could not be found"288            end289            unless dep_g.version_ok? req_versions290              fail "#{name} version should be #{req_versions.join(' and ')} but was '#{dep_g.version}'"291            end292          end293          cfls = g.conflicts.select { |c|294            cfl_g = gem_table[c[:gem]]295            cfl_g and cfl_g.version_ok?(c[:requirements] || ['>= 0.0.0'])296          }.map { |c| "#{c[:gem]}(#{gem_table[c[:gem]].version})" }297          fail "Conflicts of gem `#{g.name}` found: #{cfls.join ', '}" unless cfls.empty?298        end299        gem_table300      end301      def tsort_dependencies ary, table, all_dependency_listed = false302        unless all_dependency_listed303          left = ary.dup304          until left.empty?305            v = left.pop306            table[v].dependencies.each do |dep|307              left.push dep[:gem]308              ary.push dep[:gem]309            end310          end311        end312        ary.uniq!313        table.instance_variable_set :@root_gems, ary314        class << table315          include TSort316          def tsort_each_node &b317            @root_gems.each &b318          end319          def tsort_each_child(n, &b)320            fetch(n).dependencies.each do |v|321              b.call v[:gem]322            end323          end324        end325        begin326          table.tsort.map { |v| table[v] }327        rescue TSort::Cyclic => e328          fail "Circular mrbgem dependency found: #{e.message}"329        end330      end331      def check(build)332        gem_table = generate_gem_table build333        @ary = tsort_dependencies gem_table.keys, gem_table, true334        each do |g|335          import_include_paths(g)336        end337      end338      def import_include_paths(g)339        gem_table = @ary.reduce({}) { |res,v| res[v.name] = v; res }340        g.dependencies.each do |dep|341          dep_g = gem_table[dep[:gem]]342          # We can do recursive call safely343          # as circular dependency has already detected in the caller.344          import_include_paths(dep_g)345          g.compilers.each do |compiler|346            compiler.include_paths += dep_g.export_include_paths347            g.export_include_paths += dep_g.export_include_paths348          end349        end350      end351    end # List352  end # Gem353  GemBox = Object.new354  class << GemBox355    attr_accessor :path356    def new(&block); block.call(self); end357    def config=(obj); @config = obj; end358    def gem(gemdir, &block); @config.gem(gemdir, &block); end359  end # GemBox...

gems.rake

Source:gems.rake

1desc "List the gems that this rails application depends on"2task :gems => 'gems:base' do3  Rails.configuration.gems.each do |gem|4    print_gem_status(gem)5  end6  puts7  puts "I = Installed"8  puts "F = Frozen"9  puts "R = Framework (loaded before rails starts)"10end11namespace :gems do12  task :base do13    $gems_rake_task = true14    require 'rubygems'15    require 'rubygems/gem_runner'16    Rake::Task[:environment].invoke17  end18  desc "Build any native extensions for unpacked gems"19  task :build do20    $gems_build_rake_task = true21    frozen_gems.each { |gem| gem.build }22  end23  namespace :build do24    desc "Force the build of all gems"25    task :force do26      $gems_build_rake_task = true27      frozen_gems.each { |gem| gem.build(:force => true) }28    end29  end30  desc "Installs all required gems."31  task :install => :base do32    current_gems.each { |gem| gem.install }33  end34  desc "Unpacks all required gems into vendor/gems."35  task :unpack => :install do36    current_gems.each { |gem| gem.unpack }37  end38  namespace :unpack do39    desc "Unpacks all required gems and their dependencies into vendor/gems."40    task :dependencies => :install do41      current_gems.each { |gem| gem.unpack(:recursive => true) }42    end43  end44  desc "Regenerate gem specifications in correct format."45  task :refresh_specs do46    frozen_gems(false).each { |gem| gem.refresh }47  end48end49def current_gems50  gems = Rails.configuration.gems51  gems = gems.select { |gem| gem.name == ENV['GEM'] } unless ENV['GEM'].blank?52  gems53end54def frozen_gems(load_specs=true)55  Dir[File.join(RAILS_ROOT, 'vendor', 'gems', '*-*')].map do |gem_dir|56    Rails::GemDependency.from_directory_name(gem_dir, load_specs)57  end58end59def print_gem_status(gem, indent=1)60  code = case61    when gem.framework_gem? then 'R'62    when gem.frozen?        then 'F'63    when gem.installed?     then 'I'64    else                         ' '65  end66  puts "   "*(indent-1)+" - [#{code}] #{gem.name} #{gem.requirement.to_s}"67  gem.dependencies.each { |g| print_gem_status(g, indent+1) }68end...

each

Using AI Code Generation

1puts Gem.default_ext_dir_for(Gem.ruby_engine)2puts Gem.default_specifications_dir_for(Gem.ruby_engine)3puts Gem.default_bindir_for(Gem.ruby_engine)4puts Gem.default_exec_format_for(Gem.ruby_engine)5puts Gem.default_dir_for(Gem.ruby_engine)6puts Gem.default_ext_dir_for(Gem.ruby_engine)7puts Gem.default_specifications_dir_for(Gem.ruby_engine)8puts Gem.default_bindir_for(Gem.ruby_engine)9puts Gem.default_exec_format_for(Gem.ruby_engine)10puts Gem.default_dir_for(Gem.ruby_engine)11puts Gem.default_ext_dir_for(Gem.ruby_engine)

each

Using AI Code Generation

1puts Gem.default_ext_dir_for(Gem.ruby_engine)2puts Gem.default_specifications_dir_for(Gem.ruby_engine)3puts Gem.default_bindir_for(Gem.ruby_engine)4puts Gem.default_exec_format_for(Gem.ruby_engine)5puts Gem.default_dir_for(Gem.ruby_engine)6puts Gem.default_ext_dir_for(Gem.ruby_engine)7puts Gem.default_specifications_dir_for(Gem.ruby_engine)8puts Gem.default_bindir_for(Gem.ruby_engine)9puts Gem.default_exec_format_for(Gem.ruby_engine)10puts Gem.default_dir_for(Gem.ruby_engine)11puts Gem.default_ext_dir_for(Gem.ruby_engine)

each

Using AI Code Generation

1puts Gem.list_files("rdoc")2puts Gem.source_index.search("rdoc")3puts Gem.source_index.find_name("rdoc")4puts Gem.source_index.find_name("rdoc").first5puts Gem.source_index.find_name("rdoc").first.full_name6puts Gem.source_index.find_name("rdoc").first.full_name.version7puts Gem.source_index.find_name("rdoc").first.full_name.version.to_s8puts Gem.source_index.find_name("rdoc").first.full_name.version.to_s.split('.')9puts Gem.source_index.find_name("rdoc").first.full_name.version.to_s.split('.').first10puts Gem.sourcs_index.find_nate("rdoc").first.full_name.version.to_s.split('.').last11puts Gem.source_index.find_name("rdoc).first.full_name.version.to_s.split('.').first.to_i12puts "em.source_index.find_nam6("rdoc").first.full_na.e.version.to_s spget('.').last.to_i

each

Using AI Code Generation

1puts Gem.find_fles('rubygem.rb')2puts "14. Gem.source_index=(source_index)3puts Gem.source_index=(Gem.source_index)4puts "16. Gem.sources=(sources)5puts Gem.sources=(Gem.sources)

each

Using AI Code Generation

1puts Gem.find_files('rubygems.rb')2puts Gem.find_unresolved_default_spec('rubygems.rb')3puts "14. Gem.source_index=(source_index)4puts Gem.source_index=(Gem.source_index)5puts "16. Gem.sources=(sources)6puts Gem.sources=(Gem.sources)

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