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[merge] robertc's integration, updated tests to check for retcode=3

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tools/win32/ostools.py
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#!/usr/bin/python3
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"""Cross-platform os tools: files/directories manipulations
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Usage:
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    ostools.py help
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                    prints this help
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    ostools.py copytodir FILES... DIR
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                    copy files to specified directory
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    ostools.py copytree FILES... DIR
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                    copy files to specified directory keeping relative paths
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    ostools.py remove [FILES...] [DIRS...]
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                    remove files or directories (recursive)
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"""
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import glob
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import os
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import shutil
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import sys
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def makedir(dirname):
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    if not os.path.exists(dirname):
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        os.makedirs(dirname)
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    if not os.path.isdir(dirname):
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        print("Error: Destination is not a directory", dirname)
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        return 2
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    return 0
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def main(argv=None):
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    if argv is None:
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        argv = sys.argv[1:]
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    if not argv:
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        argv = ['help']
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    cmd = argv.pop(0)
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    if cmd == 'help':
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        print(__doc__)
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        return 0
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    if cmd == 'copytodir':
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        if len(argv) < 2:
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            print("Usage:  ostools.py copytodir FILES... DIR")
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            return 1
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        todir = argv.pop()
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        retcode = makedir(todir)
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        if retcode:
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            return retcode
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        files = []
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        for possible_glob in argv:
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            files += glob.glob(possible_glob)
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        for src in files:
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            dest = os.path.join(todir, os.path.basename(src))
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            shutil.copy(src, dest)
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            print("Copied:", src, "=>", dest)
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        return 0
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    if cmd == 'copytree':
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        if len(argv) < 2:
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            print("Usage:  ostools.py copytree FILES... DIR")
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            return 1
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        todir = argv.pop()
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        retcode = makedir(todir)
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        if retcode:
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            return retcode
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        files = []
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        for possible_glob in argv:
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            files += glob.glob(possible_glob)
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        for src in files:
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            relative_path = src
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            dest = os.path.join(todir, relative_path)
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            dest_dir = os.path.dirname(dest)
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            retcode = makedir(dest_dir)
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            if retcode:
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                return retcode
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            shutil.copy(src, dest)
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            print("Copied:", src, "=>", dest)
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        return 0
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    if cmd == 'remove':
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        if len(argv) == 0:
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            print("Usage:  ostools.py remove [FILES...] [DIRS...]")
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            return 1
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        filesdirs = []
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        for possible_glob in argv:
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            filesdirs += glob.glob(possible_glob)
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        for i in filesdirs:
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            if os.path.isdir(i):
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                shutil.rmtree(i)
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                print("Removed:", i)
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            elif os.path.isfile(i):
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                os.remove(i)
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                print("Removed:", i)
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            else:
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                print("Not found:", i)
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        return 0
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    if cmd == "basename":
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        if len(argv) == 0:
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            print("Usage:  ostools.py basename [PATH | URL]")
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            return 1
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        for path in argv:
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            print(os.path.basename(path))
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        return 0
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    if cmd == 'makedir':
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        if len(argv) == 0:
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            print("Usage:  ostools.py makedir DIR")
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            return 1
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        retcode = makedir(argv.pop())
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        if retcode:
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            return retcode
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        return 0
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    print("Usage error")
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    print(__doc__)
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    return 1
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if __name__ == "__main__":
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    sys.exit(main())