2 autoload :TSort, 'tsort'
3 autoload :Shellwords, 'shellwords'
10 LinkerConfig = Struct.new(:libraries, :library_paths, :flags, :flags_before_libraries, :flags_after_libraries)
15 def_delegators :@build, :filename, :objfile, :libfile, :exefile
17 attr_accessor :name, :dir, :build
19 attr_accessor :build_config_initializer
20 attr_accessor :mrblib_dir, :objs_dir
22 attr_accessor :version
23 attr_accessor :description, :summary
24 attr_accessor :homepage
25 attr_accessor :licenses, :authors
26 alias :license= :licenses=
27 alias :author= :authors=
29 attr_accessor :rbfiles, :objs
30 attr_accessor :test_objs, :test_rbfiles, :test_args
31 attr_accessor :test_preload
35 attr_accessor :requirements
36 attr_reader :dependencies, :conflicts
38 attr_accessor :export_include_paths
40 attr_reader :generate_functions
42 attr_block MRuby::Build::COMMANDS
44 def initialize(name, &block)
48 @mrblib_dir = "mrblib"
50 MRuby::Gem.current = self
54 return if defined?(@linker) # return if already set up
56 MRuby::Gem.current = self
57 MRuby::Build::COMMANDS.each do |command|
58 instance_variable_set("@#{command}", @build.send(command).clone)
60 @linker = LinkerConfig.new([], [], [], [], [])
62 @rbfiles = Dir.glob("#{@dir}/#{@mrblib_dir}/**/*.rb").sort
63 @objs = Dir.glob("#{@dir}/#{@objs_dir}/*.{c,cpp,cxx,cc,m,asm,s,S}").map do |f|
64 objfile(f.relative_path_from(@dir).to_s.pathmap("#{build_dir}/%X"))
67 @test_rbfiles = Dir.glob("#{dir}/test/**/*.rb").sort
68 @test_objs = Dir.glob("#{dir}/test/*.{c,cpp,cxx,cc,m,asm,s,S}").map do |f|
69 objfile(f.relative_path_from(dir).to_s.pathmap("#{build_dir}/%X"))
71 @custom_test_init = !@test_objs.empty?
72 @test_preload = nil # 'test/assert.rb'
78 @dependencies, @conflicts = [], []
79 @export_include_paths = []
80 @export_include_paths << "#{dir}/include" if File.directory? "#{dir}/include"
82 instance_eval(&@initializer)
84 @generate_functions = !(@rbfiles.empty? && @objs.empty?)
85 @objs << objfile("#{build_dir}/gem_init") if @generate_functions
87 if !name || !licenses || !authors
88 fail "#{name || dir} required to set name, license(s) and author(s)"
91 build.libmruby_objs << @objs
93 instance_eval(&@build_config_initializer) if @build_config_initializer
95 repo_url = build.gem_dir_to_repo_url[dir]
96 build.locks[repo_url]['version'] = version if repo_url
100 compilers.each do |compiler|
101 compiler.define_rules build_dir, "#{dir}"
102 compiler.defines << %Q[MRBGEM_#{funcname.upcase}_VERSION=#{version}]
103 compiler.include_paths << "#{dir}/include" if File.directory? "#{dir}/include"
106 define_gem_init_builder if @generate_functions
110 if build.kind_of?(MRuby::CrossBuild)
111 return %w(x86_64-w64-mingw32 i686-w64-mingw32).include?(build.host_target)
112 elsif build.kind_of?(MRuby::Build)
113 return ('A'..'Z').to_a.any? { |vol| Dir.exist?("#{vol}:") }
118 def add_dependency(name, *requirements)
119 default_gem = requirements.last.kind_of?(Hash) ? requirements.pop : nil
120 requirements = ['>= 0.0.0'] if requirements.empty?
121 requirements.flatten!
122 @dependencies << {:gem => name, :requirements => requirements, :default => default_gem}
125 def add_test_dependency(*args)
126 add_dependency(*args) if build.test_enabled? || build.bintest_enabled?
129 def add_conflict(name, *req)
130 @conflicts << {:gem => name, :requirements => req.empty? ? nil : req}
134 "#{build.build_dir}/mrbgems/#{name}"
138 "#{build_dir}/gem_test.c"
141 def search_package(name, version_query=nil)
143 package_query += " #{version_query}" if version_query
144 _pp "PKG-CONFIG", package_query
145 escaped_package_query = Shellwords.escape(package_query)
146 if system("pkg-config --exists #{escaped_package_query}")
147 cc.flags += [`pkg-config --cflags #{escaped_package_query}`.strip]
148 cxx.flags += [`pkg-config --cflags #{escaped_package_query}`.strip]
149 linker.flags_before_libraries += [`pkg-config --libs #{escaped_package_query}`.strip]
157 @funcname ||= @name.gsub('-', '_')
161 MRuby::Build::COMPILERS.map do |c|
162 instance_variable_get("@#{c}")
166 def define_gem_init_builder
167 file objfile("#{build_dir}/gem_init") => [ "#{build_dir}/gem_init.c", File.join(dir, "mrbgem.rake") ]
168 file "#{build_dir}/gem_init.c" => [build.mrbcfile, __FILE__] + [rbfiles].flatten do |t|
170 generate_gem_init("#{build_dir}/gem_init.c")
174 def generate_gem_init(fname)
175 open(fname, 'w') do |f|
176 print_gem_init_header f
177 build.mrbc.run f, rbfiles, "gem_mrblib_irep_#{funcname}" unless rbfiles.empty?
178 f.puts %Q[void mrb_#{funcname}_gem_init(mrb_state *mrb);]
179 f.puts %Q[void mrb_#{funcname}_gem_final(mrb_state *mrb);]
181 f.puts %Q[void GENERATED_TMP_mrb_#{funcname}_gem_init(mrb_state *mrb) {]
182 f.puts %Q[ int ai = mrb_gc_arena_save(mrb);]
183 f.puts %Q[ mrb_#{funcname}_gem_init(mrb);] if objs != [objfile("#{build_dir}/gem_init")]
184 unless rbfiles.empty?
185 f.puts %Q[ mrb_load_irep(mrb, gem_mrblib_irep_#{funcname});]
186 f.puts %Q[ if (mrb->exc) {]
187 f.puts %Q[ mrb_print_error(mrb);]
188 f.puts %Q[ mrb_close(mrb);]
189 f.puts %Q[ exit(EXIT_FAILURE);]
192 f.puts %Q[ mrb_gc_arena_restore(mrb, ai);]
195 f.puts %Q[void GENERATED_TMP_mrb_#{funcname}_gem_final(mrb_state *mrb) {]
196 f.puts %Q[ mrb_#{funcname}_gem_final(mrb);] if objs != [objfile("#{build_dir}/gem_init")]
199 end # generate_gem_init
201 def print_gem_comment(f)
203 f.puts %Q[ * This file is loading the irep]
204 f.puts %Q[ * Ruby GEM code.]
206 f.puts %Q[ * IMPORTANT:]
207 f.puts %Q[ * This file was generated!]
208 f.puts %Q[ * All manual changes will get lost.]
212 def print_gem_init_header(f)
214 f.puts %Q[#include <stdlib.h>] unless rbfiles.empty?
215 f.puts %Q[#include <mruby.h>]
216 f.puts %Q[#include <mruby/irep.h>] unless rbfiles.empty?
219 def print_gem_test_header(f)
221 f.puts %Q[#include <stdio.h>]
222 f.puts %Q[#include <stdlib.h>]
223 f.puts %Q[#include <mruby.h>]
224 f.puts %Q[#include <mruby/irep.h>]
225 f.puts %Q[#include <mruby/variable.h>]
226 f.puts %Q[#include <mruby/hash.h>] unless test_args.empty?
229 def test_dependencies
233 def custom_test_init?
237 def version_ok?(req_versions)
238 req_versions.map do |req|
240 cmp_result = Version.new(version) <=> Version.new(ver)
242 when '=' then cmp_result == 0
243 when '!=' then cmp_result != 0
244 when '>' then cmp_result == 1
245 when '<' then cmp_result == -1
246 when '>=' then cmp_result >= 0
247 when '<=' then cmp_result <= 0
249 Version.new(version).twiddle_wakka_ok?(Version.new(ver))
251 fail "Comparison not possible with '#{cmp}'"
267 ret = own.next <=> oth
272 break unless ret == 0
278 # ~> compare algorithm
281 # ~> 2 means >= 2.0.0 and < 3.0.0
282 # ~> 2.2 means >= 2.2.0 and < 3.0.0
283 # ~> 2.2.2 means >= 2.2.2 and < 2.3.0
284 def twiddle_wakka_ok?(other)
285 gr_or_eql = (self <=> other) >= 0
286 still_major_or_minor = (self <=> other.skip_major_or_minor) < 0
287 gr_or_eql and still_major_or_minor
290 def skip_major_or_minor
292 a << 0 if a.size == 1 # ~> 2 can also be represented as ~> 2.0
300 @ary = @str.split('.').map(&:to_i)
303 def each(&block); @ary.each(&block); end
304 def [](index); @ary[index]; end
305 def []=(index, value)
307 @str = @ary.join('.')
311 @str = @ary.join('.')
327 unless @ary.detect {|g| g.dir == gem.dir }
330 # GEM was already added to this list
338 def default_gem_params dep
339 if dep[:default]; dep
340 elsif File.exist? "#{MRUBY_ROOT}/mrbgems/#{dep[:gem]}" # check core
341 { :gem => dep[:gem], :default => { :core => dep[:gem] } }
342 else # fallback to mgem-list
343 { :gem => dep[:gem], :default => { :mgem => dep[:gem] } }
347 def generate_gem_table build
348 gem_table = each_with_object({}) { |spec, h| h[spec.name] = spec }
352 g.dependencies.each do |dep|
353 default_gems[dep[:gem]] ||= default_gem_params(dep)
357 until default_gems.empty?
358 def_name, def_gem = default_gems.shift
359 next if gem_table[def_name]
361 spec = gem_table[def_name] = build.gem(def_gem[:default])
362 fail "Invalid gem name: #{spec.name} (Expected: #{def_name})" if spec.name != def_name
365 spec.dependencies.each do |dep|
366 default_gems[dep[:gem]] ||= default_gem_params(dep)
371 g.dependencies.each do |dep|
373 req_versions = dep[:requirements]
374 dep_g = gem_table[name]
376 # check each GEM dependency against all available GEMs
378 fail "The GEM '#{g.name}' depends on the GEM '#{name}' but it could not be found"
380 unless dep_g.version_ok? req_versions
381 fail "#{name} version should be #{req_versions.join(' and ')} but was '#{dep_g.version}'"
385 cfls = g.conflicts.select { |c|
386 cfl_g = gem_table[c[:gem]]
387 cfl_g and cfl_g.version_ok?(c[:requirements] || ['>= 0.0.0'])
388 }.map { |c| "#{c[:gem]}(#{gem_table[c[:gem]].version})" }
389 fail "Conflicts of gem `#{g.name}` found: #{cfls.join ', '}" unless cfls.empty?
395 def tsort_dependencies ary, table, all_dependency_listed = false
396 unless all_dependency_listed
400 table[v].dependencies.each do |dep|
408 table.instance_variable_set :@root_gems, ary
411 def tsort_each_node &b
415 def tsort_each_child(n, &b)
416 fetch(n).dependencies.each do |v|
423 table.tsort.map { |v| table[v] }
424 rescue TSort::Cyclic => e
425 fail "Circular mrbgem dependency found: #{e.message}"
430 gem_table = generate_gem_table build
432 @ary = tsort_dependencies gem_table.keys, gem_table, true
434 each(&:setup_compilers)
437 import_include_paths(g)
441 def import_include_paths(g)
442 gem_table = each_with_object({}) { |spec, h| h[spec.name] = spec }
444 g.dependencies.each do |dep|
445 dep_g = gem_table[dep[:gem]]
446 # We can do recursive call safely
447 # as circular dependency has already detected in the caller.
448 import_include_paths(dep_g)
450 dep_g.export_include_paths.uniq!
451 g.compilers.each do |compiler|
452 compiler.include_paths += dep_g.export_include_paths
453 g.export_include_paths += dep_g.export_include_paths
454 compiler.include_paths.uniq!
455 g.export_include_paths.uniq!
466 def new(&block); block.call(self); end
467 def config=(obj); @config = obj; end
468 def gem(gemdir, &block); @config.gem(gemdir, &block); end
469 def gembox(gemfile); @config.gembox(gemfile); end