diff --git a/amalgate.py b/amalgate.py new file mode 100644 index 0000000..502971c --- /dev/null +++ b/amalgate.py @@ -0,0 +1,147 @@ +"""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 AmalagatedFile: + 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( self.get_value() ) + f.close() + +def amalgate_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 = AmalagatedFile( 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_AMALGATED' ) + 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_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 = AmalagatedFile( 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_AMALGATED' ) + 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 = AmalagatedFile( 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( '' ) + source.add_file( 'src/lib_json\json_tool.h' ) + source.add_file( 'src/lib_json\json_reader.cpp' ) + source.add_file( 'src/lib_json\json_batchallocator.h' ) + source.add_file( 'src/lib_json\json_valueiterator.inl' ) + source.add_file( 'src/lib_json\json_value.cpp' ) + source.add_file( 'src/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 = amalgate_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()