#!/usr/bin/env python3

"""
Traverses a directory and output the code that would create the same directory
structure during testing. Assumes that the instance of Tester is called 't'.
"""

from __future__ import print_function

import sys
import os
import stat
import string

def usage():
    print("usage: load_dir.py directory")


def remove_first_component(path):
    result = [path]
    while 1:
        s = os.path.split(result[0])
        if not s[0]:
            break
        result[:1] = list(s)
    return os.path.join(*result[1:])


def create_file(arg, dirname, fnames):
    for n in fnames:
        path = os.path.join(dirname, n)
        if not os.path.isdir(path):
            print("t.write(\"%s\", \"\"\"" % (remove_first_component(path),),)
            f = open(path, "r")
            for l in f:
                print(l)
            print('\n""")\n')


header = """#!/usr/bin/env python3

#  Copyright (C) FILL SOMETHING HERE 2005.
#  Distributed under the Boost Software License, Version 1.0. (See
#  accompanying file LICENSE.txt or copy at
#  https://www.bfgroup.xyz/b2/LICENSE.txt)

import BoostBuild

t = BoostBuild.Tester()
"""

footer = """

t.run_build_system()

t.expect_addition("bin/$toolset/debug*/FILL_SOME_HERE.exe")

t.cleanup()
"""


def main():
    if len(sys.argv) != 2:
        usage()
    else:
        path = sys.argv[1]

        if not os.access(path, os.F_OK):
            print("Path '%s' does not exist" % (path,))
            sys.exit(1)

        if not os.path.isdir(path):
            print("Path '%s' is not a directory" % (path,))

        print(header)

        for root, _, files in os.walk(path):
            create_file(None, root, files)

        print(footer)


if __name__ == '__main__':
    main()
