"""Amalgate json-cpp library sources into a single source and header file. Requires Python 2.6 Example of invocation (must be invoked from json-cpp top directory): python amalgate.py """ import os import os.path import sys class AmalgamationFile: def __init__( self, top_dir ): self.top_dir = top_dir self.blocks = [] def add_text( self, text ): if not text.endswith( "\n" ): text += "\n" self.blocks.append( text ) def add_file( self, relative_input_path, wrap_in_comment=False ): def add_marker( prefix ): self.add_text( "" ) self.add_text( "// " + "/"*70 ) self.add_text( "// %s of content of file: %s" % (prefix, relative_input_path.replace("\\","/")) ) self.add_text( "// " + "/"*70 ) self.add_text( "" ) add_marker( "Beginning" ) f = open( os.path.join( self.top_dir, relative_input_path ), "rt" ) content = f.read() if wrap_in_comment: content = "/*\n" + content + "\n*/" self.add_text( content ) f.close() add_marker( "End" ) self.add_text( "\n\n\n\n" ) def get_value( self ): return "".join( self.blocks ).replace("\r\n","\n") def write_to( self, output_path ): output_dir = os.path.dirname( output_path ) if output_dir and not os.path.isdir( output_dir ): os.makedirs( output_dir ) f = open( output_path, "wb" ) f.write( str.encode(self.get_value(), 'UTF-8') ) f.close() def amalgamate_source( source_top_dir=None, target_source_path=None, header_include_path=None ): """Produces amalgated source. Parameters: source_top_dir: top-directory target_source_path: output .cpp path header_include_path: generated header path relative to target_source_path. """ print("Amalgating header...") header = AmalgamationFile( source_top_dir ) header.add_text( "/// Json-cpp amalgated header (http://jsoncpp.sourceforge.net/)." ) header.add_text( "/// It is intented to be used with #include <%s>" % header_include_path ) header.add_file( "LICENSE", wrap_in_comment=True ) header.add_text( "#ifndef JSON_AMALGATED_H_INCLUDED" ) header.add_text( "# define JSON_AMALGATED_H_INCLUDED" ) header.add_text( "/// If defined, indicates that the source file is amalgated" ) header.add_text( "/// to prevent private header inclusion." ) header.add_text( "#define JSON_IS_AMALGAMATION" ) header.add_file( "include/json/version.h" ) header.add_file( "include/json/config.h" ) header.add_file( "include/json/forwards.h" ) header.add_file( "include/json/features.h" ) header.add_file( "include/json/value.h" ) header.add_file( "include/json/reader.h" ) header.add_file( "include/json/writer.h" ) header.add_file( "include/json/assertions.h" ) header.add_text( "#endif //ifndef JSON_AMALGATED_H_INCLUDED" ) target_header_path = os.path.join( os.path.dirname(target_source_path), header_include_path ) print("Writing amalgated header to %r" % target_header_path) header.write_to( target_header_path ) base, ext = os.path.splitext( header_include_path ) forward_header_include_path = base + "-forwards" + ext print("Amalgating forward header...") header = AmalgamationFile( source_top_dir ) header.add_text( "/// Json-cpp amalgated forward header (http://jsoncpp.sourceforge.net/)." ) header.add_text( "/// It is intented to be used with #include <%s>" % forward_header_include_path ) header.add_text( "/// This header provides forward declaration for all JsonCpp types." ) header.add_file( "LICENSE", wrap_in_comment=True ) header.add_text( "#ifndef JSON_FORWARD_AMALGATED_H_INCLUDED" ) header.add_text( "# define JSON_FORWARD_AMALGATED_H_INCLUDED" ) header.add_text( "/// If defined, indicates that the source file is amalgated" ) header.add_text( "/// to prevent private header inclusion." ) header.add_text( "#define JSON_IS_AMALGAMATION" ) header.add_file( "include/json/config.h" ) header.add_file( "include/json/forwards.h" ) header.add_text( "#endif //ifndef JSON_FORWARD_AMALGATED_H_INCLUDED" ) target_forward_header_path = os.path.join( os.path.dirname(target_source_path), forward_header_include_path ) print("Writing amalgated forward header to %r" % target_forward_header_path) header.write_to( target_forward_header_path ) print("Amalgating source...") source = AmalgamationFile( source_top_dir ) source.add_text( "/// Json-cpp amalgated source (http://jsoncpp.sourceforge.net/)." ) source.add_text( "/// It is intented to be used with #include <%s>" % header_include_path ) source.add_file( "LICENSE", wrap_in_comment=True ) source.add_text( "" ) source.add_text( "#include <%s>" % header_include_path ) source.add_text( "" ) lib_json = "src/lib_json" source.add_file( os.path.join(lib_json, "json_tool.h") ) source.add_file( os.path.join(lib_json, "json_reader.cpp") ) source.add_file( os.path.join(lib_json, "json_batchallocator.h") ) source.add_file( os.path.join(lib_json, "json_valueiterator.inl") ) source.add_file( os.path.join(lib_json, "json_value.cpp") ) source.add_file( os.path.join(lib_json, "json_writer.cpp") ) print("Writing amalgated source to %r" % target_source_path) source.write_to( target_source_path ) def main(): usage = """%prog [options] Generate a single amalgated source and header file from the sources. """ from optparse import OptionParser parser = OptionParser(usage=usage) parser.allow_interspersed_args = False parser.add_option("-s", "--source", dest="target_source_path", action="store", default="dist/jsoncpp.cpp", help="""Output .cpp source path. [Default: %default]""") parser.add_option("-i", "--include", dest="header_include_path", action="store", default="json/json.h", help="""Header include path. Used to include the header from the amalgated source file. [Default: %default]""") parser.add_option("-t", "--top-dir", dest="top_dir", action="store", default=os.getcwd(), help="""Source top-directory. [Default: %default]""") parser.enable_interspersed_args() options, args = parser.parse_args() msg = amalgamate_source( source_top_dir=options.top_dir, target_source_path=options.target_source_path, header_include_path=options.header_include_path ) if msg: sys.stderr.write( msg + "\n" ) sys.exit( 1 ) else: print("Source succesfully amalagated") if __name__ == "__main__": main()