[270] | 1 | require 'pathname'
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| 2 | require 'forwardable'
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| 3 | require 'tsort'
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| 4 |
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| 5 | module MRuby
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| 6 | module Gem
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| 7 | class << self
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| 8 | attr_accessor :current
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| 9 | end
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| 10 | LinkerConfig = Struct.new(:libraries, :library_paths, :flags, :flags_before_libraries, :flags_after_libraries)
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| 11 |
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| 12 | class Specification
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| 13 | include Rake::DSL
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| 14 | extend Forwardable
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| 15 | def_delegators :@build, :filename, :objfile, :libfile, :exefile
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| 16 |
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| 17 | attr_accessor :name, :dir, :build
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| 18 | alias mruby build
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| 19 | attr_accessor :build_config_initializer
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| 20 |
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| 21 | attr_accessor :version
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| 22 | attr_accessor :description, :summary
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| 23 | attr_accessor :homepage
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| 24 | attr_accessor :licenses, :authors
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| 25 | alias :license= :licenses=
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| 26 | alias :author= :authors=
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| 27 |
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| 28 | attr_accessor :rbfiles, :objs
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| 29 | attr_accessor :test_objs, :test_rbfiles, :test_args
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| 30 | attr_accessor :test_preload
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| 31 |
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| 32 | attr_accessor :bins
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| 33 |
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| 34 | attr_accessor :requirements
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| 35 | attr_reader :dependencies, :conflicts
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| 36 |
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| 37 | attr_accessor :export_include_paths
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| 38 |
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| 39 | attr_reader :generate_functions
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| 40 |
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| 41 | attr_block MRuby::Build::COMMANDS
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| 42 |
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| 43 | def initialize(name, &block)
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| 44 | @name = name
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| 45 | @initializer = block
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| 46 | @version = "0.0.0"
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| 47 | MRuby::Gem.current = self
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| 48 | end
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| 49 |
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| 50 | def setup
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| 51 | MRuby::Gem.current = self
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| 52 | MRuby::Build::COMMANDS.each do |command|
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| 53 | instance_variable_set("@#{command}", @build.send(command).clone)
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| 54 | end
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| 55 | @linker = LinkerConfig.new([], [], [], [], [])
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| 56 |
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| 57 | @rbfiles = Dir.glob("#{dir}/mrblib/**/*.rb").sort
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| 58 | @objs = Dir.glob("#{dir}/src/*.{c,cpp,cxx,cc,m,asm,s,S}").map do |f|
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| 59 | objfile(f.relative_path_from(@dir).to_s.pathmap("#{build_dir}/%X"))
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| 60 | end
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| 61 |
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| 62 | @generate_functions = !(@rbfiles.empty? && @objs.empty?)
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| 63 | @objs << objfile("#{build_dir}/gem_init") if @generate_functions
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| 64 |
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| 65 | @test_rbfiles = Dir.glob("#{dir}/test/**/*.rb")
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| 66 | @test_objs = Dir.glob("#{dir}/test/*.{c,cpp,cxx,cc,m,asm,s,S}").map do |f|
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| 67 | objfile(f.relative_path_from(dir).to_s.pathmap("#{build_dir}/%X"))
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| 68 | end
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| 69 | @custom_test_init = !@test_objs.empty?
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| 70 | @test_preload = nil # 'test/assert.rb'
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| 71 | @test_args = {}
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| 72 |
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| 73 | @bins = []
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| 74 |
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| 75 | @requirements = []
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| 76 | @dependencies, @conflicts = [], []
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| 77 | @export_include_paths = []
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| 78 | @export_include_paths << "#{dir}/include" if File.directory? "#{dir}/include"
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| 79 |
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| 80 | instance_eval(&@initializer)
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| 81 |
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| 82 | if !name || !licenses || !authors
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| 83 | fail "#{name || dir} required to set name, license(s) and author(s)"
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| 84 | end
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| 85 |
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| 86 | build.libmruby << @objs
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| 87 |
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| 88 | instance_eval(&@build_config_initializer) if @build_config_initializer
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| 89 |
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| 90 | compilers.each do |compiler|
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| 91 | compiler.define_rules build_dir, "#{dir}"
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| 92 | compiler.defines << %Q[MRBGEM_#{funcname.upcase}_VERSION=#{version}]
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| 93 | compiler.include_paths << "#{dir}/include" if File.directory? "#{dir}/include"
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| 94 | end
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| 95 |
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| 96 | define_gem_init_builder if @generate_functions
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| 97 | end
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| 98 |
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| 99 | def add_dependency(name, *requirements)
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| 100 | default_gem = requirements.last.kind_of?(Hash) ? requirements.pop : nil
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| 101 | requirements = ['>= 0.0.0'] if requirements.empty?
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| 102 | requirements.flatten!
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| 103 | @dependencies << {:gem => name, :requirements => requirements, :default => default_gem}
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| 104 | end
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| 105 |
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| 106 | def add_test_dependency(*args)
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| 107 | add_dependency(*args) if build.test_enabled?
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| 108 | end
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| 109 |
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| 110 | def add_conflict(name, *req)
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| 111 | @conflicts << {:gem => name, :requirements => req.empty? ? nil : req}
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| 112 | end
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| 113 |
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| 114 | def self.bin=(bin)
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| 115 | @bins = [bin].flatten
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| 116 | end
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| 117 |
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| 118 | def build_dir
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| 119 | "#{build.build_dir}/mrbgems/#{name}"
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| 120 | end
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| 121 |
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| 122 | def test_rbireps
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| 123 | "#{build_dir}/gem_test.c"
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| 124 | end
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| 125 |
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| 126 | def funcname
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| 127 | @funcname ||= @name.gsub('-', '_')
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| 128 | end
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| 129 |
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| 130 | def compilers
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| 131 | MRuby::Build::COMPILERS.map do |c|
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| 132 | instance_variable_get("@#{c}")
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| 133 | end
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| 134 | end
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| 135 |
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| 136 | def define_gem_init_builder
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| 137 | file objfile("#{build_dir}/gem_init") => [ "#{build_dir}/gem_init.c", File.join(dir, "mrbgem.rake") ]
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| 138 | file "#{build_dir}/gem_init.c" => [build.mrbcfile, __FILE__] + [rbfiles].flatten do |t|
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| 139 | FileUtils.mkdir_p build_dir
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| 140 | generate_gem_init("#{build_dir}/gem_init.c")
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| 141 | end
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| 142 | end
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| 143 |
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| 144 | def generate_gem_init(fname)
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| 145 | open(fname, 'w') do |f|
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| 146 | print_gem_init_header f
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| 147 | build.mrbc.run f, rbfiles, "gem_mrblib_irep_#{funcname}" unless rbfiles.empty?
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| 148 | f.puts %Q[void mrb_#{funcname}_gem_init(mrb_state *mrb);]
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| 149 | f.puts %Q[void mrb_#{funcname}_gem_final(mrb_state *mrb);]
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| 150 | f.puts %Q[]
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| 151 | f.puts %Q[void GENERATED_TMP_mrb_#{funcname}_gem_init(mrb_state *mrb) {]
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| 152 | f.puts %Q[ int ai = mrb_gc_arena_save(mrb);]
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| 153 | f.puts %Q[ mrb_#{funcname}_gem_init(mrb);] if objs != [objfile("#{build_dir}/gem_init")]
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| 154 | unless rbfiles.empty?
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| 155 | f.puts %Q[ mrb_load_irep(mrb, gem_mrblib_irep_#{funcname});]
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| 156 | f.puts %Q[ if (mrb->exc) {]
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| 157 | f.puts %Q[ mrb_print_error(mrb);]
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| 158 | f.puts %Q[ exit(EXIT_FAILURE);]
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| 159 | f.puts %Q[ }]
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| 160 | end
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| 161 | f.puts %Q[ mrb_gc_arena_restore(mrb, ai);]
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| 162 | f.puts %Q[}]
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| 163 | f.puts %Q[]
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| 164 | f.puts %Q[void GENERATED_TMP_mrb_#{funcname}_gem_final(mrb_state *mrb) {]
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| 165 | f.puts %Q[ mrb_#{funcname}_gem_final(mrb);] if objs != [objfile("#{build_dir}/gem_init")]
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| 166 | f.puts %Q[}]
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| 167 | end
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| 168 | end # generate_gem_init
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| 169 |
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| 170 | def print_gem_comment(f)
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| 171 | f.puts %Q[/*]
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| 172 | f.puts %Q[ * This file is loading the irep]
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| 173 | f.puts %Q[ * Ruby GEM code.]
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| 174 | f.puts %Q[ *]
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| 175 | f.puts %Q[ * IMPORTANT:]
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| 176 | f.puts %Q[ * This file was generated!]
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| 177 | f.puts %Q[ * All manual changes will get lost.]
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| 178 | f.puts %Q[ */]
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| 179 | end
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| 180 |
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| 181 | def print_gem_init_header(f)
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| 182 | print_gem_comment(f)
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| 183 | f.puts %Q[#include <stdlib.h>] unless rbfiles.empty?
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| 184 | f.puts %Q[#include "mruby.h"]
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| 185 | f.puts %Q[#include "mruby/irep.h"] unless rbfiles.empty?
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| 186 | end
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| 187 |
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| 188 | def print_gem_test_header(f)
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| 189 | print_gem_comment(f)
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| 190 | f.puts %Q[#include <stdio.h>]
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| 191 | f.puts %Q[#include <stdlib.h>]
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| 192 | f.puts %Q[#include "mruby.h"]
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| 193 | f.puts %Q[#include "mruby/irep.h"]
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| 194 | f.puts %Q[#include "mruby/variable.h"]
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| 195 | f.puts %Q[#include "mruby/hash.h"] unless test_args.empty?
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| 196 | end
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| 197 |
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| 198 | def test_dependencies
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| 199 | [@name]
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| 200 | end
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| 201 |
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| 202 | def custom_test_init?
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| 203 | @custom_test_init
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| 204 | end
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| 205 |
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| 206 | def version_ok?(req_versions)
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| 207 | req_versions.map do |req|
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| 208 | cmp, ver = req.split
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| 209 | cmp_result = Version.new(version) <=> Version.new(ver)
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| 210 | case cmp
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| 211 | when '=' then cmp_result == 0
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| 212 | when '!=' then cmp_result != 0
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| 213 | when '>' then cmp_result == 1
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| 214 | when '<' then cmp_result == -1
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| 215 | when '>=' then cmp_result >= 0
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| 216 | when '<=' then cmp_result <= 0
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| 217 | when '~>'
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| 218 | Version.new(version).twiddle_wakka_ok?(Version.new(ver))
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| 219 | else
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| 220 | fail "Comparison not possible with '#{cmp}'"
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| 221 | end
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| 222 | end.all?
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| 223 | end
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| 224 | end # Specification
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| 225 |
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| 226 | class Version
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| 227 | include Comparable
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| 228 | include Enumerable
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| 229 |
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| 230 | def <=>(other)
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| 231 | ret = 0
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| 232 | own = to_enum
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| 233 |
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| 234 | other.each do |oth|
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| 235 | begin
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| 236 | ret = own.next <=> oth
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| 237 | rescue StopIteration
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| 238 | ret = 0 <=> oth
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| 239 | end
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| 240 |
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| 241 | break unless ret == 0
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| 242 | end
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| 243 |
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| 244 | ret
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| 245 | end
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| 246 |
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| 247 | # ~> compare algorithm
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| 248 | #
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| 249 | # Example:
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| 250 | # ~> 2.2 means >= 2.2.0 and < 3.0.0
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| 251 | # ~> 2.2.0 means >= 2.2.0 and < 2.3.0
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| 252 | def twiddle_wakka_ok?(other)
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| 253 | gr_or_eql = (self <=> other) >= 0
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| 254 | still_minor = (self <=> other.skip_minor) < 0
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| 255 | gr_or_eql and still_minor
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| 256 | end
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| 257 |
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| 258 | def skip_minor
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| 259 | a = @ary.dup
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| 260 | a.slice!(-1)
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| 261 | a[-1] = a[-1].succ
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| 262 | a
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| 263 | end
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| 264 |
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| 265 | def initialize(str)
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| 266 | @str = str
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| 267 | @ary = @str.split('.').map(&:to_i)
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| 268 | end
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| 269 |
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| 270 | def each(&block); @ary.each(&block); end
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| 271 | def [](index); @ary[index]; end
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| 272 | def []=(index, value)
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| 273 | @ary[index] = value
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| 274 | @str = @ary.join('.')
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| 275 | end
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| 276 | def slice!(index)
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| 277 | @ary.slice!(index)
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| 278 | @str = @ary.join('.')
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| 279 | end
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| 280 | end # Version
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| 281 |
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| 282 | class List
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| 283 | include Enumerable
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| 284 |
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| 285 | def initialize
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| 286 | @ary = []
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| 287 | end
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| 288 |
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| 289 | def each(&b)
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| 290 | @ary.each(&b)
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| 291 | end
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| 292 |
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| 293 | def <<(gem)
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| 294 | unless @ary.detect {|g| g.dir == gem.dir }
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| 295 | @ary << gem
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| 296 | else
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| 297 | # GEM was already added to this list
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| 298 | end
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| 299 | end
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| 300 |
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| 301 | def empty?
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| 302 | @ary.empty?
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| 303 | end
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| 304 |
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| 305 | def generate_gem_table build
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| 306 | gem_table = @ary.reduce({}) { |res,v| res[v.name] = v; res }
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| 307 |
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| 308 | default_gems = []
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| 309 | each do |g|
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| 310 | g.dependencies.each do |dep|
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| 311 | unless gem_table.key? dep[:gem]
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| 312 | if dep[:default]; default_gems << dep
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| 313 | elsif File.exist? "#{MRUBY_ROOT}/mrbgems/#{dep[:gem]}" # check core
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| 314 | default_gems << { :gem => dep[:gem], :default => { :core => dep[:gem] } }
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| 315 | else # fallback to mgem-list
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| 316 | default_gems << { :gem => dep[:gem], :default => { :mgem => dep[:gem] } }
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| 317 | end
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| 318 | end
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| 319 | end
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| 320 | end
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| 321 |
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| 322 | until default_gems.empty?
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| 323 | def_gem = default_gems.pop
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| 324 |
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| 325 | spec = build.gem def_gem[:default]
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| 326 | fail "Invalid gem name: #{spec.name} (Expected: #{def_gem[:gem]})" if spec.name != def_gem[:gem]
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| 327 | spec.setup
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| 328 |
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| 329 | spec.dependencies.each do |dep|
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| 330 | unless gem_table.key? dep[:gem]
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| 331 | if dep[:default]; default_gems << dep
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| 332 | else default_gems << { :gem => dep[:gem], :default => { :mgem => dep[:gem] } }
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| 333 | end
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| 334 | end
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| 335 | end
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| 336 | gem_table[spec.name] = spec
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| 337 | end
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| 338 |
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| 339 | each do |g|
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| 340 | g.dependencies.each do |dep|
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| 341 | name = dep[:gem]
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| 342 | req_versions = dep[:requirements]
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| 343 | dep_g = gem_table[name]
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| 344 |
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| 345 | # check each GEM dependency against all available GEMs
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| 346 | if dep_g.nil?
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| 347 | fail "The GEM '#{g.name}' depends on the GEM '#{name}' but it could not be found"
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| 348 | end
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| 349 | unless dep_g.version_ok? req_versions
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| 350 | fail "#{name} version should be #{req_versions.join(' and ')} but was '#{dep_g.version}'"
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| 351 | end
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| 352 | end
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| 353 |
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| 354 | cfls = g.conflicts.select { |c|
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| 355 | cfl_g = gem_table[c[:gem]]
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| 356 | cfl_g and cfl_g.version_ok?(c[:requirements] || ['>= 0.0.0'])
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| 357 | }.map { |c| "#{c[:gem]}(#{gem_table[c[:gem]].version})" }
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| 358 | fail "Conflicts of gem `#{g.name}` found: #{cfls.join ', '}" unless cfls.empty?
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| 359 | end
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| 360 |
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| 361 | gem_table
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| 362 | end
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| 363 |
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| 364 | def tsort_dependencies ary, table, all_dependency_listed = false
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| 365 | unless all_dependency_listed
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| 366 | left = ary.dup
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| 367 | until left.empty?
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| 368 | v = left.pop
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| 369 | table[v].dependencies.each do |dep|
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| 370 | left.push dep[:gem]
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| 371 | ary.push dep[:gem]
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| 372 | end
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| 373 | end
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| 374 | end
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| 375 |
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| 376 | ary.uniq!
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| 377 | table.instance_variable_set :@root_gems, ary
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| 378 | class << table
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| 379 | include TSort
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| 380 | def tsort_each_node &b
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| 381 | @root_gems.each &b
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| 382 | end
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| 383 |
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| 384 | def tsort_each_child(n, &b)
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| 385 | fetch(n).dependencies.each do |v|
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| 386 | b.call v[:gem]
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| 387 | end
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| 388 | end
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| 389 | end
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| 390 |
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| 391 | begin
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| 392 | table.tsort.map { |v| table[v] }
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| 393 | rescue TSort::Cyclic => e
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| 394 | fail "Circular mrbgem dependency found: #{e.message}"
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| 395 | end
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| 396 | end
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| 397 |
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| 398 | def check(build)
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| 399 | gem_table = generate_gem_table build
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| 400 |
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| 401 | @ary = tsort_dependencies gem_table.keys, gem_table, true
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| 402 |
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| 403 | each do |g|
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| 404 | import_include_paths(g)
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| 405 | end
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| 406 | end
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| 407 |
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| 408 | def import_include_paths(g)
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| 409 | gem_table = @ary.reduce({}) { |res,v| res[v.name] = v; res }
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| 410 | g.dependencies.each do |dep|
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| 411 | dep_g = gem_table[dep[:gem]]
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| 412 | # We can do recursive call safely
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| 413 | # as circular dependency has already detected in the caller.
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| 414 | import_include_paths(dep_g)
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| 415 |
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| 416 | g.compilers.each do |compiler|
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| 417 | compiler.include_paths += dep_g.export_include_paths
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| 418 | g.export_include_paths += dep_g.export_include_paths
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| 419 | end
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| 420 | end
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| 421 | end
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| 422 | end # List
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| 423 | end # Gem
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| 424 |
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| 425 | GemBox = Object.new
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| 426 | class << GemBox
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| 427 | attr_accessor :path
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| 428 |
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| 429 | def new(&block); block.call(self); end
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| 430 | def config=(obj); @config = obj; end
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| 431 | def gem(gemdir, &block); @config.gem(gemdir, &block); end
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| 432 | end # GemBox
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| 433 | end # MRuby
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