11 LinkerConfig = Struct.new(:libraries, :library_paths, :flags, :flags_before_libraries, :flags_after_libraries)
16 def_delegators :@build, :filename, :objfile, :libfile, :exefile
18 attr_accessor :name, :dir, :build
20 attr_accessor :build_config_initializer
21 attr_accessor :mrblib_dir, :objs_dir
23 attr_accessor :version
24 attr_accessor :description, :summary
25 attr_accessor :homepage
26 attr_accessor :licenses, :authors
27 alias :license= :licenses=
28 alias :author= :authors=
30 attr_accessor :rbfiles, :objs
31 attr_accessor :test_objs, :test_rbfiles, :test_args
32 attr_accessor :test_preload
36 attr_accessor :requirements
37 attr_reader :dependencies, :conflicts
39 attr_accessor :export_include_paths
41 attr_reader :generate_functions
43 attr_block MRuby::Build::COMMANDS
45 def initialize(name, &block)
49 @mrblib_dir = "mrblib"
51 MRuby::Gem.current = self
55 return if defined?(@linker) # return if already set up
57 MRuby::Gem.current = self
58 MRuby::Build::COMMANDS.each do |command|
59 instance_variable_set("@#{command}", @build.send(command).clone)
61 @linker = LinkerConfig.new([], [], [], [], [])
63 @rbfiles = Dir.glob("#{@dir}/#{@mrblib_dir}/**/*.rb").sort
64 @objs = Dir.glob("#{@dir}/#{@objs_dir}/*.{c,cpp,cxx,cc,m,asm,s,S}").map do |f|
65 objfile(f.relative_path_from(@dir).to_s.pathmap("#{build_dir}/%X"))
68 @test_rbfiles = Dir.glob("#{dir}/test/**/*.rb").sort
69 @test_objs = Dir.glob("#{dir}/test/*.{c,cpp,cxx,cc,m,asm,s,S}").map do |f|
70 objfile(f.relative_path_from(dir).to_s.pathmap("#{build_dir}/%X"))
72 @custom_test_init = !@test_objs.empty?
73 @test_preload = nil # 'test/assert.rb'
79 @dependencies, @conflicts = [], []
80 @export_include_paths = []
81 @export_include_paths << "#{dir}/include" if File.directory? "#{dir}/include"
83 instance_eval(&@initializer)
85 @generate_functions = !(@rbfiles.empty? && @objs.empty?)
86 @objs << objfile("#{build_dir}/gem_init") if @generate_functions
88 if !name || !licenses || !authors
89 fail "#{name || dir} required to set name, license(s) and author(s)"
92 build.libmruby_objs << @objs
94 instance_eval(&@build_config_initializer) if @build_config_initializer
98 compilers.each do |compiler|
99 compiler.define_rules build_dir, "#{dir}"
100 compiler.defines << %Q[MRBGEM_#{funcname.upcase}_VERSION=#{version}]
101 compiler.include_paths << "#{dir}/include" if File.directory? "#{dir}/include"
104 define_gem_init_builder if @generate_functions
107 def add_dependency(name, *requirements)
108 default_gem = requirements.last.kind_of?(Hash) ? requirements.pop : nil
109 requirements = ['>= 0.0.0'] if requirements.empty?
110 requirements.flatten!
111 @dependencies << {:gem => name, :requirements => requirements, :default => default_gem}
114 def add_test_dependency(*args)
115 add_dependency(*args) if build.test_enabled? || build.bintest_enabled?
118 def add_conflict(name, *req)
119 @conflicts << {:gem => name, :requirements => req.empty? ? nil : req}
123 "#{build.build_dir}/mrbgems/#{name}"
127 "#{build_dir}/gem_test.c"
130 def search_package(name, version_query=nil)
132 package_query += " #{version_query}" if version_query
133 _pp "PKG-CONFIG", package_query
134 escaped_package_query = Shellwords.escape(package_query)
135 if system("pkg-config --exists #{escaped_package_query}")
136 cc.flags += [`pkg-config --cflags #{escaped_package_query}`.strip]
137 cxx.flags += [`pkg-config --cflags #{escaped_package_query}`.strip]
138 linker.flags_before_libraries += [`pkg-config --libs #{escaped_package_query}`.strip]
146 @funcname ||= @name.gsub('-', '_')
150 MRuby::Build::COMPILERS.map do |c|
151 instance_variable_get("@#{c}")
155 def define_gem_init_builder
156 file objfile("#{build_dir}/gem_init") => [ "#{build_dir}/gem_init.c", File.join(dir, "mrbgem.rake") ]
157 file "#{build_dir}/gem_init.c" => [build.mrbcfile, __FILE__] + [rbfiles].flatten do |t|
158 FileUtils.mkdir_p build_dir
159 generate_gem_init("#{build_dir}/gem_init.c")
163 def generate_gem_init(fname)
164 open(fname, 'w') do |f|
165 print_gem_init_header f
166 build.mrbc.run f, rbfiles, "gem_mrblib_irep_#{funcname}" unless rbfiles.empty?
167 f.puts %Q[void mrb_#{funcname}_gem_init(mrb_state *mrb);]
168 f.puts %Q[void mrb_#{funcname}_gem_final(mrb_state *mrb);]
170 f.puts %Q[void GENERATED_TMP_mrb_#{funcname}_gem_init(mrb_state *mrb) {]
171 f.puts %Q[ int ai = mrb_gc_arena_save(mrb);]
172 f.puts %Q[ mrb_#{funcname}_gem_init(mrb);] if objs != [objfile("#{build_dir}/gem_init")]
173 unless rbfiles.empty?
174 f.puts %Q[ mrb_load_irep(mrb, gem_mrblib_irep_#{funcname});]
175 f.puts %Q[ if (mrb->exc) {]
176 f.puts %Q[ mrb_print_error(mrb);]
177 f.puts %Q[ mrb_close(mrb);]
178 f.puts %Q[ exit(EXIT_FAILURE);]
181 f.puts %Q[ mrb_gc_arena_restore(mrb, ai);]
184 f.puts %Q[void GENERATED_TMP_mrb_#{funcname}_gem_final(mrb_state *mrb) {]
185 f.puts %Q[ mrb_#{funcname}_gem_final(mrb);] if objs != [objfile("#{build_dir}/gem_init")]
188 end # generate_gem_init
190 def print_gem_comment(f)
192 f.puts %Q[ * This file is loading the irep]
193 f.puts %Q[ * Ruby GEM code.]
195 f.puts %Q[ * IMPORTANT:]
196 f.puts %Q[ * This file was generated!]
197 f.puts %Q[ * All manual changes will get lost.]
201 def print_gem_init_header(f)
203 f.puts %Q[#include <stdlib.h>] unless rbfiles.empty?
204 f.puts %Q[#include <mruby.h>]
205 f.puts %Q[#include <mruby/irep.h>] unless rbfiles.empty?
208 def print_gem_test_header(f)
210 f.puts %Q[#include <stdio.h>]
211 f.puts %Q[#include <stdlib.h>]
212 f.puts %Q[#include <mruby.h>]
213 f.puts %Q[#include <mruby/irep.h>]
214 f.puts %Q[#include <mruby/variable.h>]
215 f.puts %Q[#include <mruby/hash.h>] unless test_args.empty?
218 def test_dependencies
222 def custom_test_init?
226 def version_ok?(req_versions)
227 req_versions.map do |req|
229 cmp_result = Version.new(version) <=> Version.new(ver)
231 when '=' then cmp_result == 0
232 when '!=' then cmp_result != 0
233 when '>' then cmp_result == 1
234 when '<' then cmp_result == -1
235 when '>=' then cmp_result >= 0
236 when '<=' then cmp_result <= 0
238 Version.new(version).twiddle_wakka_ok?(Version.new(ver))
240 fail "Comparison not possible with '#{cmp}'"
256 ret = own.next <=> oth
261 break unless ret == 0
267 # ~> compare algorithm
270 # ~> 2.2 means >= 2.2.0 and < 3.0.0
271 # ~> 2.2.0 means >= 2.2.0 and < 2.3.0
272 def twiddle_wakka_ok?(other)
273 gr_or_eql = (self <=> other) >= 0
274 still_minor = (self <=> other.skip_minor) < 0
275 gr_or_eql and still_minor
287 @ary = @str.split('.').map(&:to_i)
290 def each(&block); @ary.each(&block); end
291 def [](index); @ary[index]; end
292 def []=(index, value)
294 @str = @ary.join('.')
298 @str = @ary.join('.')
314 unless @ary.detect {|g| g.dir == gem.dir }
317 # GEM was already added to this list
325 def default_gem_params dep
326 if dep[:default]; dep
327 elsif File.exist? "#{MRUBY_ROOT}/mrbgems/#{dep[:gem]}" # check core
328 { :gem => dep[:gem], :default => { :core => dep[:gem] } }
329 else # fallback to mgem-list
330 { :gem => dep[:gem], :default => { :mgem => dep[:gem] } }
334 def generate_gem_table build
335 gem_table = each_with_object({}) { |spec, h| h[spec.name] = spec }
339 g.dependencies.each do |dep|
340 default_gems[dep[:gem]] ||= default_gem_params(dep)
344 until default_gems.empty?
345 def_name, def_gem = default_gems.shift
346 next if gem_table[def_name]
348 spec = gem_table[def_name] = build.gem(def_gem[:default])
349 fail "Invalid gem name: #{spec.name} (Expected: #{def_name})" if spec.name != def_name
352 spec.dependencies.each do |dep|
353 default_gems[dep[:gem]] ||= default_gem_params(dep)
358 g.dependencies.each do |dep|
360 req_versions = dep[:requirements]
361 dep_g = gem_table[name]
363 # check each GEM dependency against all available GEMs
365 fail "The GEM '#{g.name}' depends on the GEM '#{name}' but it could not be found"
367 unless dep_g.version_ok? req_versions
368 fail "#{name} version should be #{req_versions.join(' and ')} but was '#{dep_g.version}'"
372 cfls = g.conflicts.select { |c|
373 cfl_g = gem_table[c[:gem]]
374 cfl_g and cfl_g.version_ok?(c[:requirements] || ['>= 0.0.0'])
375 }.map { |c| "#{c[:gem]}(#{gem_table[c[:gem]].version})" }
376 fail "Conflicts of gem `#{g.name}` found: #{cfls.join ', '}" unless cfls.empty?
382 def tsort_dependencies ary, table, all_dependency_listed = false
383 unless all_dependency_listed
387 table[v].dependencies.each do |dep|
395 table.instance_variable_set :@root_gems, ary
398 def tsort_each_node &b
402 def tsort_each_child(n, &b)
403 fetch(n).dependencies.each do |v|
410 table.tsort.map { |v| table[v] }
411 rescue TSort::Cyclic => e
412 fail "Circular mrbgem dependency found: #{e.message}"
417 gem_table = generate_gem_table build
419 @ary = tsort_dependencies gem_table.keys, gem_table, true
421 each(&:setup_compilers)
424 import_include_paths(g)
428 def import_include_paths(g)
429 gem_table = each_with_object({}) { |spec, h| h[spec.name] = spec }
431 g.dependencies.each do |dep|
432 dep_g = gem_table[dep[:gem]]
433 # We can do recursive call safely
434 # as circular dependency has already detected in the caller.
435 import_include_paths(dep_g)
437 dep_g.export_include_paths.uniq!
438 g.compilers.each do |compiler|
439 compiler.include_paths += dep_g.export_include_paths
440 g.export_include_paths += dep_g.export_include_paths
441 compiler.include_paths.uniq!
442 g.export_include_paths.uniq!
453 def new(&block); block.call(self); end
454 def config=(obj); @config = obj; end
455 def gem(gemdir, &block); @config.gem(gemdir, &block); end
456 def gembox(gemfile); @config.gembox(gemfile); end