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#!/usr/bin/env python
# ===----------------------------------------------------------------------===##
#
# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#
# ===----------------------------------------------------------------------===##
import argparse
import sys
if __name__ == "__main__":
"""Converts a header dependency CSV file to Graphviz dot file.
The header dependency CSV files are found on the directory
libcxx/test/libcxx/transitive_includes
"""
parser = argparse.ArgumentParser(
description="""Converts a libc++ dependency CSV file to a Graphviz dot file.
For example:
libcxx/utils/graph_header_deps.py libcxx/test/libcxx/transitive_includes/cxx20.csv | dot -Tsvg > graph.svg
""",
formatter_class=argparse.RawDescriptionHelpFormatter,
)
parser.add_argument(
"input",
default=None,
metavar="FILE",
help="The header dependency CSV file.",
)
options = parser.parse_args()
print(
"""digraph includes {
graph [nodesep=0.5, ranksep=1];
node [shape=box, width=4];"""
)
with open(options.input, "r") as f:
for line in f.readlines():
elements = line.rstrip().split(" ")
assert len(elements) == 2
print(f'\t"{elements[0]}" -> "{elements[1]}"')
print("}")
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