From b3f6daf83d8adf0040a1bf9401342c811502f690 Mon Sep 17 00:00:00 2001 From: Chris Fallin Date: Thu, 11 Dec 2014 18:58:04 -0800 Subject: Amalgamated distribution (upb.c/upb.h) tool. There are a number of tweaks to get this to work: - The #include dependence graph wasn't quite complete, and I had to add a few #includes to get the tool to work. - I had to change a number of symbol names to avoid conflicts between 'static' definitions in different .c files. This could be avoided if the tool were smart enough to rename static symbols to have unique prefixes instead, but (i) this requires semantic understanding of C, and (ii) the macro-defined static functions (e.g., handlers for primitive types in several places) would probably trip this up. Verified that the resulting upb.h/upb.c compiles and doesn't have any unresolved references. --- tools/amalgamate.py | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100755 tools/amalgamate.py (limited to 'tools/amalgamate.py') diff --git a/tools/amalgamate.py b/tools/amalgamate.py new file mode 100755 index 0000000..6fd8033 --- /dev/null +++ b/tools/amalgamate.py @@ -0,0 +1,47 @@ +#!/usr/bin/python + +import sys +import re + +INCLUDE_RE = re.compile('^#include "([^"]*)"$') + +def parse_include(line): + match = INCLUDE_RE.match(line) + return match.groups()[0] if match else None + +class Amalgamator: + def __init__(self, include_path, output_path): + self.include_path = include_path + self.included = set() + self.output_h = open(output_path + "upb.h", "w") + self.output_c = open(output_path + "upb.c", "w") + + self.output_c.write("// Amalgamated source file\n") + self.output_c.write('#include "upb.h"\n') + + self.output_h.write("// Amalgamated source file\n") + + def _process_file(self, infile_name, outfile): + for line in open(infile_name): + include = parse_include(line) + if include is not None and include.startswith("upb"): + if include not in self.included: + self.included.add(include) + self._add_header(self.include_path + include) + else: + outfile.write(line) + + def _add_header(self, filename): + self._process_file(filename, self.output_h) + + def add_src(self, filename): + self._process_file(filename, self.output_c) + +# ---- main ---- + +include_path = sys.argv[1] +output_path = sys.argv[2] +amalgamator = Amalgamator(include_path, output_path) + +for filename in sys.argv[3:]: + amalgamator.add_src(filename.strip()) -- cgit v1.2.3