1 files changed, 78 insertions, 0 deletions
diff --git a/mrbgems/build_tasks.rb b/mrbgems/build_tasks.rb
new file mode 100644
index 000000000..f7accdffa
--- /dev/null
+++ b/mrbgems/build_tasks.rb
@@ -0,0 +1,78 @@
+MRBGEMS_PATH = File.dirname(__FILE__)
+
+GEM_INIT = "#{MRBGEMS_PATH}/gem_init"
+GEM_MAKEFILE = "#{MRBGEMS_PATH}/g/Makefile"
+GEM_MAKEFILE_LIST = "#{MRBGEMS_PATH}/g/MakefileGemList"
+MAKEFILE_4_GEM = "#{MRUBY_ROOT}/mrbgems/Makefile4gem"
+
+GEM_MAKE_FLAGS = "#{MAKE_FLAGS} MAKEFILE_4_GEM='#{MAKEFILE_4_GEM}'"
+
+task :mrbgems_all => ["#{GEM_INIT}.a"] do
+  for_each_gem do |f|
+    sh "#{MAKE} -C #{f} #{GEM_MAKE_FLAGS}"
+  end
+end
+
+task :mrbgems_clean do
+  sh "cd #{MRUBY_ROOT}/mrbgems/g && #{RM_F} *.c *.d *.rbtmp *.ctmp *.o mrbtest"
+  for_each_gem do |f|
+    sh "#{MAKE} clean -C #{f} #{GEM_MAKE_FLAGS}"
+  end
+end
+
+task :mrbgems_prepare_test do
+  sh "#{CAT} #{for_each_gem{|f| "#{f}/test/*.rb "}} > #{MRUBY_ROOT}/mrbgems/g/mrbgemtest.rbtmp"
+  sh "#{MRUBY_ROOT}/bin/mrbc -Bmrbgemtest_irep -o#{MRUBY_ROOT}/mrbgems/g/mrbgemtest.ctmp #{MRUBY_ROOT}/mrbgems/g/mrbgemtest.rbtmp"
+end
+
+file "#{GEM_INIT}.a" => ["#{GEM_INIT}.c", "#{GEM_INIT}.o"] do |t|
+  sh "#{AR} rs #{t.name} #{t.prerequisites.join(' ')}"
+end
+
+rule ".o" => [".c"] do |t|
+  puts "Build the driver which initializes all gems"
+  sh "#{CC} #{CFLAGS.join(' ')} -I #{MRUBY_ROOT}/include -MMD -c #{t.source} -o #{t.name}"
+end
+
+file "#{GEM_INIT}.c" do |t|
+  puts "Generate Gem driver: #{t.name}"
+  open(t.name, 'w') do |f|
+    f.puts <<__EOF__
+/*
+ * This file contains a list of all
+ * initializing methods which are
+ * necessary to bootstrap all gems.
+ *
+ * IMPORTANT:
+ *   This file was generated!
+ *   All manual changes will get lost.
+ */
+
+#include "mruby.h"
+
+#{for_each_gem{|f| "void GENERATED_TMP_mrb_%s_gem_init(mrb_state*);\n" % [File.basename(f)]}}
+
+void
+mrb_init_mrbgems(mrb_state *mrb) {
+#{for_each_gem{|f| "  GENERATED_TMP_mrb_%s_gem_init(mrb);\n" % [File.basename(f)]}}
+}
+__EOF__
+  end
+end
+
+def for_each_gem(&block)
+  IO.readlines(ACTIVE_GEMS).map { |line|
+    block.call(line.chomp)
+  }.join('')
+end
+
+task :mrbgems_generate_gem_makefile_list do
+  open(GEM_MAKEFILE_LIST, 'w') do |f|
+    f.puts <<__EOF__
+GEM_LIST := #{for_each_gem{|f| "#{f}/mrb-#{File.basename(f)}-gem.a"}}
+
+GEM_ARCHIVE_FILES := #{MRUBY_ROOT}/mrbgems/gem_init.a
+GEM_ARCHIVE_FILES += $(GEM_LIST)
+__EOF__
+  end
+end