import os
import sys
import pickle
+noserial=False
+try:
+ from PHPSerialize import *
+ from PHPUnserialize import *
+except:
+ print >>sys.stderr, "PHPSerial db type not allowed."
+ noserial=True
+
import inspect
import shutil
from config import config
DEBUG= 0
PICKLE_PATH="pdb"
-def dbLoad(name):
- return SPickle().load(name)
+def dbLoad(name, type=None):
+ return SPickle().load(name, type)
-def dbExists(name):
+def dbExists(name, type=None):
#if self.config.debug:
# name = "debug.%s" % name
- return SPickle().exists(name)
+ return SPickle().exists(name, type)
-def dbDump(name, obj=None):
+def dbDump(name, obj=None, type=None):
# depth of the dump is 2 now, since we're redirecting to '.dump'
- return SPickle().dump(name, obj, 2)
+ return SPickle().dump(name, obj, type, 2)
+
+def if_cached_else_refresh(cond, refresh, name, function, type=None):
+ s = SPickle()
+ if refresh:
+ if not config.debug and s.exists("production.%s" % name, type):
+ s.remove("production.%s" % name, type)
+ if config.debug and s.exists("debug.%s" % name, type):
+ s.remove("debug.%s" % name, type)
+
+ return if_cached_else(cond, name, function, type)
-def if_cached_else(cond, name, function):
+def if_cached_else(cond, name, function, type=None):
s = SPickle()
- if (cond and s.exists(name)) or \
- (cond and config.debug and s.exists("debug.%s" % name)):
- o = s.load(name)
+ if (cond and s.exists("production.%s" % name, type)) or \
+ (cond and config.debug and s.exists("debug.%s" % name, type)):
+ o = s.load(name, type)
else:
o = function()
if cond:
- s.dump(name, o) # cache the object using 'name'
+ s.dump(name, o, type) # cache the object using 'name'
+ o = s.load(name, type)
+ # TODO: what if 'o' hasn't been converted...
return o
class SPickle:
def __init__(self):
- self.config = config
+ pass
- def if_cached_else(self, cond, name, function):
- if cond and self.exists(name):
- o = self.load(name)
+ def if_cached_else(self, cond, name, function, type=None):
+ if cond and self.exists("production.%s" % name, type):
+ o = self.load(name, type)
else:
o = function()
if cond:
- self.dump(name, o) # cache the object using 'name'
+ self.dump(name, o, type) # cache the object using 'name'
return o
- def __file(self, name):
- return "%s/%s.pkl" % (PICKLE_PATH, name)
+ def __file(self, name, type=None):
+ if type == None:
+ return "%s/%s.pkl" % (PICKLE_PATH, name)
+ else:
+ if noserial:
+ raise Exception("No PHPSerializer module available")
+
+ return "%s/%s.phpserial" % (PICKLE_PATH, name)
- def exists(self, name):
- return os.path.exists(self.__file(name))
+ def exists(self, name, type=None):
+ return os.path.exists(self.__file(name, type))
+
+ def remove(self, name, type=None):
+ return os.remove(self.__file(name, type))
- def load(self, name):
+ def load(self, name, type=None):
"""
In debug mode, we should fail if neither file exists.
if the debug file exists, reset name
Load the file
"""
- if self.config.debug:
- if self.exists("debug.%s" % name):
+ if config.debug:
+ if self.exists("debug.%s" % name, type):
name = "debug.%s" % name
- elif self.exists(name):
+ elif self.exists("production.%s" % name, type):
debugname = "debug.%s" % name
- if not self.exists(debugname):
- shutil.copyfile(self.__file(name), self.__file(debugname))
+ if not self.exists(debugname, type):
+ name = "production.%s" % name
+ shutil.copyfile(self.__file(name, type), self.__file(debugname, type))
name = debugname
else: # neither exist
- raise Exception, "No such pickle based on %s" % self.__file(name)
+ raise Exception, "No such pickle based on %s" % self.__file("debug.%s" % name, type)
else:
- if not self.exists(name):
+ if not self.exists("production.%s" % name, type):
raise Exception, "No such file %s" % name
+ name = "production.%s" % name
- print "loading %s" % self.__file(name)
- f = open(self.__file(name), 'r')
- o = pickle.load(f)
+ #print "loading %s" % self.__file(name, type)
+ f = open(self.__file(name, type), 'r')
+ if type == None:
+ o = pickle.load(f)
+ else:
+ if noserial:
+ raise Exception("No PHPSerializer module available")
+ s = PHPUnserialize()
+ o = s.unserialize(f.read())
f.close()
return o
# use the environment to extract the data associated with the local
# variable 'name'
- def dump(self, name, obj=None, depth=1):
+ def dump(self, name, obj=None, type=None, depth=1):
if obj == None:
o = inspect.getouterframes(inspect.currentframe())
up1 = o[depth][0] # get the frame one prior to (up from) this frame
obj = argvals[3][name] # extract the local variable name 'name'
if not os.path.isdir("%s/" % PICKLE_PATH):
os.mkdir("%s" % PICKLE_PATH)
- if self.config.debug:
+ if config.debug:
name = "debug.%s" % name
- f = open(self.__file(name), 'w')
- pickle.dump(obj, f)
+ else:
+ name = "production.%s" % name
+ f = open(self.__file(name, type), 'w')
+ if type == None:
+ pickle.dump(obj, f)
+ else:
+ if noserial:
+ raise Exception("No PHPSerializer module available")
+ s = PHPSerialize()
+ f.write(s.serialize(obj))
f.close()
return
+COMMAND_TIMEOUT = 60
ssh_options = { 'StrictHostKeyChecking':'no',
'BatchMode':'yes',
'PasswordAuthentication':'no',
- 'ConnectTimeout':'20'}
+ 'ConnectTimeout':'%s' % COMMAND_TIMEOUT}
+from select import select
+class CMD:
+ def __init__(self):
+ pass
+
+ def run_noexcept(self, cmd):
-class SSH:
+ (f_in, f_out, f_err) = os.popen3(cmd)
+ lout, lin, lerr = select([f_out,f_err], [], [], COMMAND_TIMEOUT*2)
+ if len(lin) == 0 and len(lout) == 0 and len(lerr) == 0:
+ # Reached a timeout!
+ print "TODO: kill subprocess: '%s'" % cmd
+ # TODO: kill subprocess??
+ return ("", "SCRIPTTIMEOUT")
+ o_value = f_out.read()
+ e_value = ""
+ if o_value == "": # An error has occured
+ e_value = f_err.read()
+
+ o_value = o_value.strip()
+ e_value = e_value.strip()
+
+ f_out.close()
+ f_in.close()
+ f_err.close()
+ return (o_value, e_value)
+
+ def run(self, cmd):
+
+ (f_in, f_out, f_err) = os.popen3(cmd)
+ value = f_out.read()
+ if value == "":
+ raise Exception, f_err.read()
+ value = value.strip()
+
+ f_out.close()
+ f_in.close()
+ f_err.close()
+ return value
+
+
+
+class SSH(CMD):
def __init__(self, user, host, options = ssh_options):
self.options = options
self.user = user
def run(self, cmd):
cmd = "ssh %s %s@%s '%s'" % (self.__options_to_str(),
self.user, self.host, cmd)
- if ( DEBUG == 1 ):
- print cmd,
- (f_in, f_out, f_err) = os.popen3(cmd)
- value = f_out.read()
- if value == "":
- raise Exception, f_err.read()
- if ( DEBUG == 1 ):
- print " == %s" % value
- f_out.close()
- f_in.close()
- f_err.close()
- return value
+ return CMD.run(self, cmd)
+
+ def get_file(self, rmt_filename, local_filename=None):
+ if local_filename == None:
+ local_filename = "./"
+ cmd = "scp -B %s %s@%s:%s %s" % (self.__options_to_str(),
+ self.user, self.host,
+ rmt_filename, local_filename)
+ # output :
+ # errors will be on stderr,
+ # success will have a blank stderr...
+ return CMD.run_noexcept(self, cmd)
+
+ def run_noexcept(self, cmd):
+ cmd = "ssh %s %s@%s '%s'" % (self.__options_to_str(),
+ self.user, self.host, cmd)
+ return CMD.run_noexcept(self, cmd)
def runE(self, cmd):
cmd = "ssh %s %s@%s '%s'" % (self.__options_to_str(),
value = f_out.read()
if value == "": # An error has occured
value = f_err.read()
+ value = value.strip()
if ( DEBUG == 1 ):
print " == %s" % value
git://git.onelab.eu / monitor.git / blobdiff