72 строки
2.2 KiB
Python
Executable File
72 строки
2.2 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright 2015 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Runs the 'ar' command after removing its output file first.
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This script is invoked like:
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python gcc_ar_wrapper.py --ar=$AR --output=$OUT $OP $INPUTS
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to do the equivalent of:
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rm -f $OUT && $AR $OP $OUT $INPUTS
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"""
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import argparse
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import os
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import subprocess
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import sys
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# When running on a Windows host and using a toolchain whose tools are
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# actually wrapper scripts (i.e. .bat files on Windows) rather than binary
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# executables, the "command" to run has to be prefixed with this magic.
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# The GN toolchain definitions take care of that for when GN/Ninja is
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# running the tool directly. When that command is passed in to this
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# script, it appears as a unitary string but needs to be split up so that
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# just 'cmd' is the actual command given to Python's subprocess module.
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BAT_PREFIX = 'cmd /c call '
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def CommandToRun(command):
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if command[0].startswith(BAT_PREFIX):
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command = command[0].split(None, 3) + command[1:]
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return command
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def main():
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument('--ar',
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required=True,
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help='The ar binary to run',
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metavar='PATH')
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parser.add_argument('--output',
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required=True,
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help='Output archive file',
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metavar='ARCHIVE')
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parser.add_argument('--plugin',
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help='Load plugin')
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parser.add_argument('operation',
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help='Operation on the archive')
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parser.add_argument('inputs', nargs='+',
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help='Input files')
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args = parser.parse_args()
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command = [args.ar, args.operation]
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if args.plugin is not None:
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command += ['--plugin', args.plugin]
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command.append(args.output)
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command += args.inputs
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# Remove the output file first.
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try:
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os.remove(args.output)
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except OSError as e:
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if e.errno != os.errno.ENOENT:
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raise
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# Now just run the ar command.
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return subprocess.call(CommandToRun(command))
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if __name__ == "__main__":
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sys.exit(main())
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