162 lines
7.0 KiB
Python
162 lines
7.0 KiB
Python
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#!/usr/bin/env python
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"""Amalgamate json-cpp library sources into a single source and header file.
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Works with python2.6+ and python3.4+.
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Example of invocation (must be invoked from json-cpp top directory):
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python amalgamate.py
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"""
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import os
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import os.path
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import sys
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INCLUDE_PATH = "include/json"
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SRC_PATH = "src/lib_json"
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class AmalgamationFile:
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def __init__(self, top_dir):
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self.top_dir = top_dir
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self.blocks = []
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def add_text(self, text):
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if not text.endswith("\n"):
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text += "\n"
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self.blocks.append(text)
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def add_file(self, relative_input_path, wrap_in_comment=False):
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def add_marker(prefix):
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self.add_text("")
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self.add_text("// " + "/"*70)
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self.add_text("// %s of content of file: %s" % (prefix, relative_input_path.replace("\\","/")))
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self.add_text("// " + "/"*70)
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self.add_text("")
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add_marker("Beginning")
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f = open(os.path.join(self.top_dir, relative_input_path), "rt")
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content = f.read()
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if wrap_in_comment:
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content = "/*\n" + content + "\n*/"
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self.add_text(content)
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f.close()
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add_marker("End")
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self.add_text("\n\n\n\n")
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def get_value(self):
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return "".join(self.blocks).replace("\r\n","\n")
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def write_to(self, output_path):
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output_dir = os.path.dirname(output_path)
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if output_dir and not os.path.isdir(output_dir):
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os.makedirs(output_dir)
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f = open(output_path, "wb")
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f.write(str.encode(self.get_value(), 'UTF-8'))
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f.close()
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def amalgamate_source(source_top_dir=None,
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target_source_path=None,
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header_include_path=None):
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"""Produces amalgamated source.
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Parameters:
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source_top_dir: top-directory
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target_source_path: output .cpp path
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header_include_path: generated header path relative to target_source_path.
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"""
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print("Amalgamating header...")
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header = AmalgamationFile(source_top_dir)
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header.add_text("/// Json-cpp amalgamated header (http://jsoncpp.sourceforge.net/).")
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header.add_text('/// It is intended to be used with #include "%s"' % header_include_path)
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header.add_file("LICENSE", wrap_in_comment=True)
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header.add_text("#ifndef JSON_AMALGAMATED_H_INCLUDED")
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header.add_text("# define JSON_AMALGAMATED_H_INCLUDED")
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header.add_text("/// If defined, indicates that the source file is amalgamated")
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header.add_text("/// to prevent private header inclusion.")
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header.add_text("#define JSON_IS_AMALGAMATION")
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header.add_file(os.path.join(INCLUDE_PATH, "version.h"))
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header.add_file(os.path.join(INCLUDE_PATH, "allocator.h"))
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header.add_file(os.path.join(INCLUDE_PATH, "config.h"))
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header.add_file(os.path.join(INCLUDE_PATH, "forwards.h"))
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header.add_file(os.path.join(INCLUDE_PATH, "json_features.h"))
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header.add_file(os.path.join(INCLUDE_PATH, "value.h"))
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header.add_file(os.path.join(INCLUDE_PATH, "reader.h"))
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header.add_file(os.path.join(INCLUDE_PATH, "writer.h"))
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header.add_file(os.path.join(INCLUDE_PATH, "assertions.h"))
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header.add_text("#endif //ifndef JSON_AMALGAMATED_H_INCLUDED")
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target_header_path = os.path.join(os.path.dirname(target_source_path), header_include_path)
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print("Writing amalgamated header to %r" % target_header_path)
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header.write_to(target_header_path)
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base, ext = os.path.splitext(header_include_path)
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forward_header_include_path = base + "-forwards" + ext
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print("Amalgamating forward header...")
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header = AmalgamationFile(source_top_dir)
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header.add_text("/// Json-cpp amalgamated forward header (http://jsoncpp.sourceforge.net/).")
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header.add_text('/// It is intended to be used with #include "%s"' % forward_header_include_path)
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header.add_text("/// This header provides forward declaration for all JsonCpp types.")
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header.add_file("LICENSE", wrap_in_comment=True)
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header.add_text("#ifndef JSON_FORWARD_AMALGAMATED_H_INCLUDED")
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header.add_text("# define JSON_FORWARD_AMALGAMATED_H_INCLUDED")
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header.add_text("/// If defined, indicates that the source file is amalgamated")
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header.add_text("/// to prevent private header inclusion.")
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header.add_text("#define JSON_IS_AMALGAMATION")
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header.add_file(os.path.join(INCLUDE_PATH, "version.h"))
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header.add_file(os.path.join(INCLUDE_PATH, "allocator.h"))
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header.add_file(os.path.join(INCLUDE_PATH, "config.h"))
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header.add_file(os.path.join(INCLUDE_PATH, "forwards.h"))
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header.add_text("#endif //ifndef JSON_FORWARD_AMALGAMATED_H_INCLUDED")
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target_forward_header_path = os.path.join(os.path.dirname(target_source_path),
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forward_header_include_path)
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print("Writing amalgamated forward header to %r" % target_forward_header_path)
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header.write_to(target_forward_header_path)
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print("Amalgamating source...")
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source = AmalgamationFile(source_top_dir)
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source.add_text("/// Json-cpp amalgamated source (http://jsoncpp.sourceforge.net/).")
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source.add_text('/// It is intended to be used with #include "%s"' % header_include_path)
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source.add_file("LICENSE", wrap_in_comment=True)
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source.add_text("")
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source.add_text('#include "%s"' % header_include_path)
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source.add_text("""
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#ifndef JSON_IS_AMALGAMATION
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#error "Compile with -I PATH_TO_JSON_DIRECTORY"
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#endif
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""")
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source.add_text("")
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source.add_file(os.path.join(SRC_PATH, "json_tool.h"))
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source.add_file(os.path.join(SRC_PATH, "json_reader.cpp"))
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source.add_file(os.path.join(SRC_PATH, "json_valueiterator.inl"))
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source.add_file(os.path.join(SRC_PATH, "json_value.cpp"))
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source.add_file(os.path.join(SRC_PATH, "json_writer.cpp"))
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print("Writing amalgamated source to %r" % target_source_path)
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source.write_to(target_source_path)
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def main():
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usage = """%prog [options]
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Generate a single amalgamated source and header file from the sources.
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"""
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from optparse import OptionParser
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parser = OptionParser(usage=usage)
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parser.allow_interspersed_args = False
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parser.add_option("-s", "--source", dest="target_source_path", action="store", default="dist/jsoncpp.cpp",
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help="""Output .cpp source path. [Default: %default]""")
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parser.add_option("-i", "--include", dest="header_include_path", action="store", default="json/json.h",
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help="""Header include path. Used to include the header from the amalgamated source file. [Default: %default]""")
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parser.add_option("-t", "--top-dir", dest="top_dir", action="store", default=os.getcwd(),
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help="""Source top-directory. [Default: %default]""")
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parser.enable_interspersed_args()
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options, args = parser.parse_args()
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msg = amalgamate_source(source_top_dir=options.top_dir,
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target_source_path=options.target_source_path,
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header_include_path=options.header_include_path)
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if msg:
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sys.stderr.write(msg + "\n")
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sys.exit(1)
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else:
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print("Source successfully amalgamated")
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if __name__ == "__main__":
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main()
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