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# Copyright 2005-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
import portage
from portage import os
from portage.util import shlex_split, varexpand
## default clean command from make.globals
## PORT_LOGDIR_CLEAN = 'find "${PORT_LOGDIR}" -type f ! -name "summary.log*" -mtime +7 -delete'
class CleanLogs(object):
short_desc = "Clean PORT_LOGDIR logs"
def name():
return "logs"
name = staticmethod(name)
def can_progressbar(self, func):
return False
def check(self, **kwargs):
if kwargs:
options = kwargs.get('options', None)
if options:
options['pretend'] = True
return self.clean(**kwargs)
def clean(self, **kwargs):
"""Log directory cleaning function
@param **kwargs: optional dictionary of values used in this function are:
settings: portage settings instance: defaults to portage.settings
"PORT_LOGDIR": directory to clean
"PORT_LOGDIR_CLEAN": command for cleaning the logs.
options: dict:
'NUM': int: number of days
'pretend': boolean
'eerror': defaults to None, optional output module to output errors.
'einfo': defaults to None, optional output module to output info msgs.
"""
messages = []
num_of_days = None
if kwargs:
# convuluted, I know, but portage.settings does not exist in
# kwargs.get() when called from _emerge.main.clean_logs()
settings = kwargs.get('settings', None)
if not settings:
settings = portage.settings
options = kwargs.get('options', None)
if options:
num_of_days = options.get('NUM', None)
pretend = options.get('pretend', False)
eerror = options.get('eerror', None)
einfo = options.get('einfo', None)
clean_cmd = settings.get("PORT_LOGDIR_CLEAN")
if clean_cmd:
clean_cmd = shlex_split(clean_cmd)
if '-mtime' in clean_cmd and num_of_days is not None:
if num_of_days == 0:
i = clean_cmd.index('-mtime')
clean_cmd.remove('-mtime')
clean_cmd.pop(i)
else:
clean_cmd[clean_cmd.index('-mtime') +1] = \
'+%s' % str(num_of_days)
if pretend:
if "-delete" in clean_cmd:
clean_cmd.remove("-delete")
if not clean_cmd:
return []
rval = self._clean_logs(clean_cmd, settings)
messages += self._convert_errors(rval, eerror, einfo)
return messages
@staticmethod
def _clean_logs(clean_cmd, settings):
logdir = settings.get("PORT_LOGDIR")
if logdir is None or not os.path.isdir(logdir):
return
variables = {"PORT_LOGDIR" : logdir}
cmd = [varexpand(x, mydict=variables) for x in clean_cmd]
try:
rval = portage.process.spawn(cmd, env=os.environ)
except portage.exception.CommandNotFound:
rval = 127
return rval
@staticmethod
def _convert_errors(rval, eerror=None, einfo=None):
msg = []
if rval != os.EX_OK:
msg.append("PORT_LOGDIR_CLEAN command returned %s"
% ("%d" % rval if rval else "None"))
msg.append("See the make.conf(5) man page for "
"PORT_LOGDIR_CLEAN usage instructions.")
if eerror:
for m in msg:
eerror(m)
else:
msg.append("PORT_LOGDIR_CLEAN command succeeded")
if einfo:
for m in msg:
einfo(m)
return msg
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