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#!/usr/bin/env python
# (C) 2013 by Katerina Barone-Adesi <kat.obsc@gmail.com>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import subprocess
import os
import sys
import importlib
import time
"""Run a command, with stdout and stderr directed to devnull"""
def popen_devnull(cmd, verbose=True):
devnull = open(os.devnull, 'w')
if verbose:
print "Launching: PWD=%s %s" % (os.getcwd(), ' '.join([repr(c) for c in cmd]))
return subprocess.Popen(cmd, stdout=devnull, stderr=devnull)
"""End a process.
If the process doesn't appear to exist (for instance, is None), do nothing"""
def end_proc(proc):
if not proc:
return
proc.terminate()
time.sleep(.1)
rc = proc.poll()
if rc is not None:
print "Terminated child process"
else:
proc.kill()
print "Killed child process"
proc.wait()
"""Add a directory to sys.path, try to import a config file."""
def importappconf_or_quit(dirname, confname, p_set):
if dirname not in sys.path:
sys.path.append(dirname)
try:
return importlib.import_module(confname)
except ImportError as e:
if p_set:
print >> sys.stderr, "osmoappdesc not found in %s" % dirname
else:
print >> sys.stderr, "set osmoappdesc location with -p <dir>"
sys.exit(1)
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