58 lines
1.6 KiB
Python
58 lines
1.6 KiB
Python
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#!/usr/bin/env python
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#===- cindex-includes.py - cindex/Python Inclusion Graph -----*- python -*--===#
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#
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# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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# See https://llvm.org/LICENSE.txt for license information.
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# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#
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#===------------------------------------------------------------------------===#
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"""
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A simple command line tool for dumping a Graphviz description (dot) that
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describes include dependencies.
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"""
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def main():
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import sys
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from clang.cindex import Index
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from optparse import OptionParser, OptionGroup
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parser = OptionParser("usage: %prog [options] {filename} [clang-args*]")
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parser.disable_interspersed_args()
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(opts, args) = parser.parse_args()
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if len(args) == 0:
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parser.error('invalid number arguments')
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# FIXME: Add an output file option
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out = sys.stdout
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index = Index.create()
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tu = index.parse(None, args)
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if not tu:
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parser.error("unable to load input")
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# A helper function for generating the node name.
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def name(f):
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if f:
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return "\"" + f.name + "\""
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# Generate the include graph
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out.write("digraph G {\n")
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for i in tu.get_includes():
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line = " ";
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if i.is_input_file:
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# Always write the input file as a node just in case it doesn't
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# actually include anything. This would generate a 1 node graph.
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line += name(i.include)
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else:
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line += '%s->%s' % (name(i.source), name(i.include))
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line += "\n";
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out.write(line)
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out.write("}\n")
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if __name__ == '__main__':
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main()
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