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123 lines
5.2 KiB
123 lines
5.2 KiB
4 months ago
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#!/usr/bin/env python
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#===----------------------------------------------------------------------===##
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#
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# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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# See https://llvm.org/LICENSE.txt for license information.
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# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#
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#===----------------------------------------------------------------------===##
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"""
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Runs an executable on a remote host.
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This is meant to be used as an executor when running the C++ Standard Library
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conformance test suite.
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"""
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import argparse
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import os
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import posixpath
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import shlex
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import subprocess
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import sys
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import tarfile
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import tempfile
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def ssh(args, command):
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cmd = ['ssh', '-oBatchMode=yes']
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if args.extra_ssh_args is not None:
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cmd.extend(shlex.split(args.extra_ssh_args))
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return cmd + [args.host, command]
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def scp(args, src, dst):
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cmd = ['scp', '-q', '-oBatchMode=yes']
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if args.extra_scp_args is not None:
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cmd.extend(shlex.split(args.extra_scp_args))
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return cmd + [src, '{}:{}'.format(args.host, dst)]
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument('--host', type=str, required=True)
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parser.add_argument('--execdir', type=str, required=True)
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parser.add_argument('--extra-ssh-args', type=str, required=False)
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parser.add_argument('--extra-scp-args', type=str, required=False)
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parser.add_argument('--codesign_identity', type=str, required=False, default=None)
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parser.add_argument('--env', type=str, nargs='*', required=False, default=dict())
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parser.add_argument("command", nargs=argparse.ONE_OR_MORE)
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args = parser.parse_args()
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commandLine = args.command
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# Create a temporary directory where the test will be run.
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# That is effectively the value of %T on the remote host.
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tmp = subprocess.check_output(ssh(args, 'mktemp -d /tmp/libcxx.XXXXXXXXXX'), universal_newlines=True).strip()
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# HACK:
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# If an argument is a file that ends in `.tmp.exe`, assume it is the name
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# of an executable generated by a test file. We call these test-executables
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# below. This allows us to do custom processing like codesigning test-executables
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# and changing their path when running on the remote host. It's also possible
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# for there to be no such executable, for example in the case of a .sh.cpp
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# test.
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isTestExe = lambda exe: exe.endswith('.tmp.exe') and os.path.exists(exe)
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pathOnRemote = lambda file: posixpath.join(tmp, os.path.basename(file))
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try:
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# Do any necessary codesigning of test-executables found in the command line.
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if args.codesign_identity:
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for exe in filter(isTestExe, commandLine):
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subprocess.check_call(['xcrun', 'codesign', '-f', '-s', args.codesign_identity, exe], env={})
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# tar up the execution directory (which contains everything that's needed
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# to run the test), and copy the tarball over to the remote host.
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try:
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tmpTar = tempfile.NamedTemporaryFile(suffix='.tar', delete=False)
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with tarfile.open(fileobj=tmpTar, mode='w') as tarball:
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tarball.add(args.execdir, arcname=os.path.basename(args.execdir))
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# Make sure we close the file before we scp it, because accessing
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# the temporary file while still open doesn't work on Windows.
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tmpTar.close()
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remoteTarball = pathOnRemote(tmpTar.name)
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subprocess.check_call(scp(args, tmpTar.name, remoteTarball))
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finally:
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# Make sure we close the file in case an exception happens before
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# we've closed it above -- otherwise close() is idempotent.
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tmpTar.close()
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os.remove(tmpTar.name)
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# Untar the dependencies in the temporary directory and remove the tarball.
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remoteCommands = [
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'tar -xf {} -C {} --strip-components 1'.format(remoteTarball, tmp),
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'rm {}'.format(remoteTarball)
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]
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# Make sure all test-executables in the remote command line have 'execute'
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# permissions on the remote host. The host that compiled the test-executable
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# might not have a notion of 'executable' permissions.
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for exe in map(pathOnRemote, filter(isTestExe, commandLine)):
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remoteCommands.append('chmod +x {}'.format(exe))
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# Execute the command through SSH in the temporary directory, with the
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# correct environment. We tweak the command line to run it on the remote
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# host by transforming the path of test-executables to their path in the
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# temporary directory on the remote host.
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commandLine = (pathOnRemote(x) if isTestExe(x) else x for x in commandLine)
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remoteCommands.append('cd {}'.format(tmp))
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if args.env:
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remoteCommands.append('export {}'.format(' '.join(args.env)))
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remoteCommands.append(subprocess.list2cmdline(commandLine))
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# Finally, SSH to the remote host and execute all the commands.
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rc = subprocess.call(ssh(args, ' && '.join(remoteCommands)))
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return rc
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finally:
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# Make sure the temporary directory is removed when we're done.
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subprocess.check_call(ssh(args, 'rm -r {}'.format(tmp)))
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if __name__ == '__main__':
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exit(main())
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