Rebuild CRuby based building script without Makefile

Tested CRuby 1.8.6 and 1.9.3

You can see building configuration in build_config.rb

1 files changed, 41 insertions, 0 deletions

diff --git a/tasks/rules.rake b/tasks/rules.rake
new file mode 100644
index 000000000..f53f3bccd
--- /dev/null
+++ b/tasks/rules.rake
@@ -0,0 +1,41 @@
+def get_dependencies(file)
+  file = file.pathmap('%n.d') unless File.extname(file) == '.d'
+  if File.exists?(file)
+    File.read(file).gsub("\\\n ", "").scan(/^\S+:\s+(.+)$/).flatten.map {|s| s.split(' ') }.flatten
+  else
+    []
+  end
+end
+
+MRuby.each_target do |t|
+  obj_matcher = Regexp.new("^#{build_dir}/(.*)\\.o$")
+  {
+    '.c' => proc { |t| compile_c t.name, t.prerequisites.first },
+    '.cpp' => proc { |t| compile_cxx t.name, t.prerequisites.first },
+    '.m' => proc { |t| compile_objc t.name, t.prerequisites.first },
+    '.S' => proc { |t| compile_asm t.name, t.prerequisites.first }
+  }.each do |ext, compile|
+    rule obj_matcher => [
+      proc { |file|
+        file.sub(obj_matcher, "\\1#{ext}")
+      },
+      proc { |file|
+        get_dependencies(file)
+      }] do |t|
+      FileUtils.mkdir_p File.dirname(t.name)
+      compile.call t
+    end
+
+    rule obj_matcher => [
+      proc { |file|
+        file.sub(obj_matcher, "#{build_dir}/\\1#{ext}")
+      },
+      proc { |file|
+        get_dependencies(file)
+      }] do |t|
+      FileUtils.mkdir_p File.dirname(t.name)
+      compile.call t
+    end
+  end
+end
+