Add Size builder - close #143

lib/rscons.rb

@@ -33,6 +33,7 @@ module Rscons
     :Program,
     :SharedLibrary,
     :SharedObject,
+    :Size,
   ]
 
   # Class to represent a fatal error during an Rscons operation.
@@ -146,6 +147,7 @@ require_relative "rscons/builders/program"
 require_relative "rscons/builders/shared_library"
 require_relative "rscons/builders/shared_object"
 require_relative "rscons/builders/simple_builder"
+require_relative "rscons/builders/size"
 
 # language support
 require_relative "rscons/builders/lang/asm"

lib/rscons/builders/size.rb

@@ -0,0 +1,24 @@
+module Rscons
+  module Builders
+    # Run the "size" utility on an executable and store its results in the
+    # target file.
+    # input file.
+    #
+    # Examples::
+    #   env.Size("^/project.size", "^/project.elf")
+    class Size < Builder
+
+      # Run the builder to produce a build target.
+      def run(options)
+        if @command
+          finalize_command
+        else
+          @vars["_SOURCES"] = @sources
+          command = @env.build_command("${SIZECMD}", @vars)
+          standard_command("Size <source>#{Util.short_format_paths(@sources)}<reset> => <target>#{@target}<reset>", command, stdout: @target)
+        end
+      end
+
+    end
+  end
+end

lib/rscons/default_construction_variables.rb

@@ -80,6 +80,9 @@ module Rscons
     "SHLIBLINKPREFIX" => "-l",
     "SHLIBPREFIX" => on_windows ? "" : "lib",
     "SHLIBSUFFIX" => on_windows ? ".dll" : ".so",
+    "SIZE" => "size",
+    "SIZECMD" => %w[${SIZE} ${SIZEFLAGS} ${_SOURCES}],
+    "SIZEFLAGS" => [],
     "YACC" => "bison",
     "YACCSUFFIX" => %w[.y .yy],
     "YACC_CMD" => %w[${YACC} ${YACC_FLAGS} -o ${_TARGET} ${_SOURCES}],