MakeSingleHeader.py
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#!/usr/bin/env python
# Requires pathlib on python 2
from __future__ import print_function, unicode_literals
import os
import re
import argparse
from subprocess import check_output, CalledProcessError
includes_local = re.compile(r"""^#include "(.*)"$""", re.MULTILINE)
includes_system = re.compile(r"""^#include \<(.*)\>$""", re.MULTILINE)
DIR = os.path.dirname(os.path.abspath(__file__)) # Path(__file__).resolve().parent
BDIR = os.path.join(os.path.dirname(DIR), 'include') # DIR.parent / 'include'
print("Git directory:", DIR)
try:
TAG = check_output(['git', 'describe', '--tags', '--always'], cwd=str(DIR)).decode("utf-8")
except CalledProcessError:
TAG = "A non-git source"
def MakeHeader(out):
main_header = os.path.join(BDIR, 'CLI', 'CLI.hpp')
with open(main_header) as f:
header = f.read()
include_files = includes_local.findall(header)
headers = set()
output = ''
for inc in include_files:
with open(os.path.join(BDIR, inc)) as f:
inner = f.read()
headers |= set(includes_system.findall(inner))
output += '\n// From {inc}\n\n'.format(inc=inc)
output += inner[inner.find('namespace'):]
header_list = '\n'.join('#include <'+h+'>' for h in headers)
output = '''\
#pragma once
// Distributed under the 3-Clause BSD License. See accompanying
// file LICENSE or https://github.com/CLIUtils/CLI11 for details.
// This file was generated using MakeSingleHeader.py in CLI11/scripts
// from: {tag}
// This has the complete CLI library in one file.
{header_list}
{output}'''.format(header_list=header_list, output=output, tag=TAG)
with open(out, 'w') as f:
f.write(output)
print("Created {out}".format(out=out))
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument("output", nargs='?', default=os.path.join(BDIR, 'CLI11.hpp'))
args = parser.parse_args()
MakeHeader(args.output)