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194 lines
8.6 KiB
Python
194 lines
8.6 KiB
Python
#!/usr/bin/python
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#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#
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# When run directly, this script expects the following environment variables
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# to be set:
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# UPLOAD_HOST : host to upload files to
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# UPLOAD_USER : username on that host
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# UPLOAD_PATH : path on that host to put the files in
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#
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# And will use the following optional environment variables if set:
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# UPLOAD_SSH_KEY : path to a ssh private key to use
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# UPLOAD_PORT : port to use for ssh
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# POST_UPLOAD_CMD: a commandline to run on the remote host after uploading.
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# UPLOAD_PATH and the full paths of all files uploaded will
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# be appended to the commandline.
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#
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# All files to be uploaded should be passed as commandline arguments to this
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# script. The script takes one other parameter, --base-path, which you can use
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# to indicate that files should be uploaded including their paths relative
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# to the base path.
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import sys, os
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from optparse import OptionParser
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from subprocess import PIPE, Popen, check_call
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def RequireEnvironmentVariable(v):
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"""Return the value of the environment variable named v, or print
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an error and exit if it's unset (or empty)."""
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if not v in os.environ or os.environ[v] == "":
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print "Error: required environment variable %s not set" % v
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sys.exit(1)
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return os.environ[v]
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def OptionalEnvironmentVariable(v):
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"""Return the value of the environment variable named v, or None
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if it's unset (or empty)."""
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if v in os.environ and os.environ[v] != "":
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return os.environ[v]
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return None
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def FixupMsysPath(path):
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"""MSYS helpfully translates absolute pathnames in environment variables
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and commandline arguments into Windows native paths. This sucks if you're
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trying to pass an absolute path on a remote server. This function attempts
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to un-mangle such paths."""
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if 'OSTYPE' in os.environ and os.environ['OSTYPE'] == 'msys':
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# sort of awful, find out where our shell is (should be in msys/bin)
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# and strip the first part of that path out of the other path
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if 'SHELL' in os.environ:
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sh = os.environ['SHELL']
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msys = sh[:sh.find('/bin')]
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if path.startswith(msys):
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path = path[len(msys):]
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return path
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def WindowsPathToMsysPath(path):
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"""Translate a Windows pathname to an MSYS pathname.
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Necessary because we call out to ssh/scp, which are MSYS binaries
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and expect MSYS paths."""
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if sys.platform != 'win32':
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return path
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(drive, path) = os.path.splitdrive(os.path.abspath(path))
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return "/" + drive[0] + path.replace('\\','/')
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def AppendOptionalArgsToSSHCommandline(cmdline, port, ssh_key):
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"""Given optional port and ssh key values, append valid OpenSSH
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commandline arguments to the list cmdline if the values are not None."""
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if port is not None:
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cmdline.append("-P%d" % port)
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if ssh_key is not None:
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# Don't interpret ~ paths - ssh can handle that on its own
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if not ssh_key.startswith('~'):
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ssh_key = WindowsPathToMsysPath(ssh_key)
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cmdline.extend(["-o", "IdentityFile=%s" % ssh_key])
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def DoSSHCommand(command, user, host, port=None, ssh_key=None):
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"""Execute command on user@host using ssh. Optionally use
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port and ssh_key, if provided."""
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cmdline = ["ssh"]
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AppendOptionalArgsToSSHCommandline(cmdline, port, ssh_key)
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cmdline.extend(["%s@%s" % (user, host), command])
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cmd = Popen(cmdline, stdout=PIPE)
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retcode = cmd.wait()
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if retcode != 0:
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raise Exception("Command %s returned non-zero exit code: %i" % \
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(cmdline, retcode))
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return cmd.stdout.read().strip()
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def DoSCPFile(file, remote_path, user, host, port=None, ssh_key=None):
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"""Upload file to user@host:remote_path using scp. Optionally use
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port and ssh_key, if provided."""
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cmdline = ["scp"]
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AppendOptionalArgsToSSHCommandline(cmdline, port, ssh_key)
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cmdline.extend([WindowsPathToMsysPath(file),
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"%s@%s:%s" % (user, host, remote_path)])
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check_call(cmdline)
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def GetRemotePath(path, local_file, base_path):
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"""Given a remote path to upload to, a full path to a local file, and an
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optional full path that is a base path of the local file, construct the
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full remote path to place the file in. If base_path is not None, include
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the relative path from base_path to file."""
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if base_path is None or not local_file.startswith(base_path):
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return path
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dir = os.path.dirname(local_file)
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# strip base_path + extra slash and make it unixy
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dir = dir[len(base_path)+1:].replace('\\','/')
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return path + dir
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def UploadFiles(user, host, path, files, verbose=False, port=None, ssh_key=None, base_path=None, upload_to_temp_dir=False, post_upload_command=None):
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"""Upload each file in the list files to user@host:path. Optionally pass
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port and ssh_key to the ssh commands. If base_path is not None, upload
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files including their path relative to base_path. If upload_to_temp_dir is
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True files will be uploaded to a temporary directory on the remote server.
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Generally, you should have a post upload command specified in these cases
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that can move them around to their correct location(s).
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If post_upload_command is not None, execute that command on the remote host
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after uploading all files, passing it the upload path, and the full paths to
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all files uploaded.
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If verbose is True, print status updates while working."""
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if upload_to_temp_dir:
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path = DoSSHCommand("mktemp -d", user, host, port=port, ssh_key=ssh_key)
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if not path.endswith("/"):
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path += "/"
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if base_path is not None:
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base_path = os.path.abspath(base_path)
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remote_files = []
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try:
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for file in files:
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file = os.path.abspath(file)
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if not os.path.isfile(file):
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raise IOError("File not found: %s" % file)
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# first ensure that path exists remotely
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remote_path = GetRemotePath(path, file, base_path)
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DoSSHCommand("mkdir -p " + remote_path, user, host, port=port, ssh_key=ssh_key)
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if verbose:
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print "Uploading " + file
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DoSCPFile(file, remote_path, user, host, port=port, ssh_key=ssh_key)
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remote_files.append(remote_path + '/' + os.path.basename(file))
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if post_upload_command is not None:
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if verbose:
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print "Running post-upload command: " + post_upload_command
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file_list = '"' + '" "'.join(remote_files) + '"'
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DoSSHCommand('%s "%s" %s' % (post_upload_command, path, file_list), user, host, port=port, ssh_key=ssh_key)
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finally:
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if upload_to_temp_dir:
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DoSSHCommand("rm -rf %s" % path, user, host, port=port,
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ssh_key=ssh_key)
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if verbose:
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print "Upload complete"
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if __name__ == '__main__':
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host = RequireEnvironmentVariable('UPLOAD_HOST')
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user = RequireEnvironmentVariable('UPLOAD_USER')
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path = OptionalEnvironmentVariable('UPLOAD_PATH')
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upload_to_temp_dir = OptionalEnvironmentVariable('UPLOAD_TO_TEMP')
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port = OptionalEnvironmentVariable('UPLOAD_PORT')
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if port is not None:
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port = int(port)
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key = OptionalEnvironmentVariable('UPLOAD_SSH_KEY')
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post_upload_command = OptionalEnvironmentVariable('POST_UPLOAD_CMD')
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if (not path and not upload_to_temp_dir) or (path and upload_to_temp_dir):
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print "One (and only one of UPLOAD_PATH or UPLOAD_TO_TEMP must be " + \
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"defined."
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sys.exit(1)
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if sys.platform == 'win32':
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if path is not None:
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path = FixupMsysPath(path)
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if post_upload_command is not None:
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post_upload_command = FixupMsysPath(post_upload_command)
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parser = OptionParser(usage="usage: %prog [options] <files>")
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parser.add_option("-b", "--base-path",
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action="store", dest="base_path",
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help="Preserve file paths relative to this path when uploading. If unset, all files will be uploaded directly to UPLOAD_PATH.")
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(options, args) = parser.parse_args()
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if len(args) < 1:
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print "You must specify at least one file to upload"
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sys.exit(1)
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try:
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UploadFiles(user, host, path, args, base_path=options.base_path,
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port=port, ssh_key=key, upload_to_temp_dir=upload_to_temp_dir,
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post_upload_command=post_upload_command,
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verbose=True)
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except IOError, (strerror):
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print strerror
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sys.exit(1)
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except Exception, (err):
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print err
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sys.exit(2)
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