mirror of
git://git.yoctoproject.org/layerindex-web.git
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100 lines
2.7 KiB
Python
100 lines
2.7 KiB
Python
# Utilities for layerindex-web
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#
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# Copyright (C) 2013 Intel Corporation
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# Author: Paul Eggleton <paul.eggleton@linux.intel.com>
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#
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# Licensed under the MIT license, see COPYING.MIT for details
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import sys
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import os.path
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import subprocess
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import logging
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import time
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import fcntl
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def get_branch(branchname):
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from layerindex.models import Branch
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res = list(Branch.objects.filter(name=branchname)[:1])
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if res:
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return res[0]
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return None
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def get_layer(layername):
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from layerindex.models import LayerItem
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res = list(LayerItem.objects.filter(name=layername)[:1])
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if res:
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return res[0]
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return None
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def runcmd(cmd, destdir=None, printerr=True, logger=None):
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"""
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execute command, raise CalledProcessError if fail
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return output if succeed
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"""
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#logger.debug("run cmd '%s' in %s" % (cmd, os.getcwd() if destdir is None else destdir))
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out = os.tmpfile()
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try:
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subprocess.check_call(cmd, stdout=out, stderr=out, cwd=destdir, shell=True)
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except subprocess.CalledProcessError,e:
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out.seek(0)
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if printerr:
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output = out.read()
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if logger:
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logger.error("%s" % output)
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else:
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sys.stderr.write("%s\n" % output)
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e.output = output
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raise e
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out.seek(0)
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output = out.read()
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#logger.debug("output: %s" % output.rstrip() )
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return output
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def setup_django():
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# Get access to our Django model
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newpath = os.path.abspath(os.path.dirname(__file__) + '/..')
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sys.path.append(newpath)
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os.environ['DJANGO_SETTINGS_MODULE'] = 'settings'
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from django.core.management import setup_environ
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from django.conf import settings
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import settings
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setup_environ(settings)
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def logger_create(name):
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import settings
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from datetime import datetime
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logger = logging.getLogger(name)
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try:
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log_dir = settings.LOG_DIR
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except:
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log_dir = ''
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if log_dir:
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filename = os.path.join(settings.LOG_DIR, "%s_%s.log" % (name, datetime.now().strftime("%Y-%m-%d_%H:%M")))
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loggerhandler = logging.FileHandler(filename)
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else:
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loggerhandler = logging.StreamHandler()
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loggerhandler.setFormatter(logging.Formatter("%(levelname)s: %(message)s"))
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logger.addHandler(loggerhandler)
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logger.setLevel(logging.INFO)
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return logger
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def lock_file(fn):
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starttime = time.time()
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while True:
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lock = open(fn, 'w')
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try:
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fcntl.flock(lock, fcntl.LOCK_EX | fcntl.LOCK_NB)
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return lock
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except IOError:
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lock.close()
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if time.time() - starttime > 30:
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return None
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def unlock_file(lock):
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fcntl.flock(lock, fcntl.LOCK_UN)
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