--- /dev/null
+#! /usr/bin/env python
+
+# Copyright (c) 2004-2005 The Regents of The University of Michigan
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met: redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer;
+# redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution;
+# neither the name of the copyright holders nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import sys
+import os
+import re
+import time
+import optparse
+
+import pexpect
+
+progname = os.path.basename(sys.argv[0])
+
+usage = "%prog [options] command [command arguments]"
+optparser = optparse.OptionParser(usage=usage)
+optparser.allow_interspersed_args=False
+optparser.add_option('-e', dest='stderr_file',
+ help='command stderr output file')
+optparser.add_option('-o', dest='stdout_file',
+ help='command stdout output file')
+optparser.add_option('-l', dest='save_log', action='store_true',
+ help='save qsub output log file')
+optparser.add_option('-q', dest='qsub_timeout', type='int',
+ help='qsub queue wait timeout', default=30*60)
+optparser.add_option('-t', dest='cmd_timeout', type='int',
+ help='command execution timeout', default=600*60)
+
+(options, cmd) = optparser.parse_args()
+
+if cmd == []:
+ print >>sys.stderr, "%s: missing command" % progname
+ sys.exit(1)
+
+cwd = os.getcwd()
+
+# Deal with systems where /n is a symlink to /.automount
+if cwd.startswith('/.automount/'):
+ cwd = cwd.replace('/.automount/', '/n/', 1)
+
+if not cwd.startswith('/n/poolfs/'):
+ print >>sys.stderr, "Error: current directory must be under /n/poolfs."
+ sys.exit(1)
+
+# The Shell class wraps pexpect.spawn with some handy functions that
+# assume the thing on the other end is a Bourne/bash shell.
+class Shell(pexpect.spawn):
+ # Regexp to match the shell prompt. We change the prompt to
+ # something fixed and distinctive to make it easier to match
+ # reliably.
+ prompt_re = re.compile('qdo\$ ')
+
+ def __init__(self, cmd):
+ # initialize base pexpect.spawn object
+ try:
+ pexpect.spawn.__init__(self, cmd)
+ except pexpect.ExceptionPexpect, exc:
+ print "%s:" % progname, exc
+ sys.exit(1)
+ # full_output accumulates the full output of the session
+ self.full_output = ""
+ self.quick_timeout = 15
+ # wait for a prompt, then change it
+ try:
+ self.expect('\$ ', options.qsub_timeout)
+ except pexpect.TIMEOUT:
+ print >>sys.stderr, "%s: qsub timed out." % progname
+ self.kill(15)
+ self.close(wait=True)
+ sys.exit(1)
+ self.do_command('PS1="qdo$ "')
+
+ # version of expect that updates full_output too
+ def expect(self, regexp, timeout = -1):
+ pexpect.spawn.expect(self, regexp, timeout)
+ self.full_output += self.before + self.after
+
+ # Just issue a command and wait for the next prompt.
+ # Returns a string containing the output of the command.
+ def do_bare_command(self, cmd, timeout = -1):
+ global full_output
+ self.sendline(cmd)
+ # read back the echo of the command
+ self.readline()
+ # wait for the next prompt
+ self.expect(self.prompt_re, timeout)
+ output = self.before.rstrip()
+ return output
+
+ # Issue a command, then query its exit status.
+ # Returns a (string, int) tuple with the command output and the status.
+ def do_command(self, cmd, timeout = -1):
+ # do the command itself
+ output = self.do_bare_command(cmd, timeout)
+ # collect status
+ status = int(self.do_bare_command("echo $?", self.quick_timeout))
+ return (output, status)
+
+ # Check to see if the given directory exists.
+ def dir_exists(self, dirname):
+ (output, status) = shell.do_command('[ -d %s ]' % dirname,
+ self.quick_timeout)
+ return status == 0
+
+
+# Spawn the interactive pool job.
+
+# Hack to do link on poolfs... disabled for now since
+# compiler/linker/library versioning problems between poolfs and
+# nodes. May never work since poolfs is x86-64 and nodes are 32-bit.
+if False and len(cmd) > 50:
+ shell_cmd = 'ssh -t poolfs /bin/sh -l'
+ print "%s: running %s on poolfs" % (progname, cmd[0])
+else:
+ shell_cmd = 'qsub -I -S /bin/sh'
+
+shell = Shell(shell_cmd)
+
+try:
+ # chdir to cwd
+ (output, status) = shell.do_command('cd ' + cwd)
+
+ if status != 0:
+ raise OSError, "Can't chdir to %s" % cwd
+
+ # wacky hack: sometimes scons will create an output directory then
+ # fork a job to generate files in that directory, and the job will
+ # get run before the directory creation propagates through NFS.
+ # This hack looks for a '-o' option indicating an output file and
+ # waits for the corresponding directory to appear if necessary.
+ try:
+ if 'cc' in cmd[0] or 'g++' in cmd[0]:
+ output_dir = os.path.dirname(cmd[cmd.index('-o')+1])
+ elif 'm5' in cmd[0]:
+ output_dir = cmd[cmd.index('-d')+1]
+ else:
+ output_dir = None
+ except (ValueError, IndexError):
+ # no big deal if there's no '-o'/'-d' or if it's the final argument
+ output_dir = None
+
+ if output_dir:
+ secs_waited = 0
+ while not shell.dir_exists(output_dir) and secs_waited < 45:
+ time.sleep(5)
+ secs_waited += 5
+ if secs_waited > 10:
+ print "waited", secs_waited, "seconds for", output_dir
+
+ # run command
+ if options.stdout_file:
+ cmd += ['>', options.stdout_file]
+ if options.stderr_file:
+ cmd += ['2>', options.stderr_file]
+ try:
+ (output, status) = shell.do_command(' '.join(cmd), options.cmd_timeout)
+ except pexpect.TIMEOUT:
+ print >>sys.stderr, "%s: command timed out after %d seconds." \
+ % (progname, options.cmd_timeout)
+ shell.sendline('~.') # qsub/ssh termination escape sequence
+ shell.close(wait=True)
+ status = 3
+ if output:
+ print output
+
+finally:
+ # end job
+ if shell.isalive():
+ shell.sendline('exit')
+ shell.expect('qsub: job .* completed\r\n')
+ shell.close(wait=True)
+
+ # if there was an error, log the output even if not requested
+ if status != 0 or options.save_log:
+ log = file('qdo-log.' + str(os.getpid()), 'w')
+ log.write(shell.full_output)
+ log.close()
+
+del shell
+
+sys.exit(status)
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