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import io
import os
import json
import shutil
from myconfig import MyConfig
config = MyConfig()
#Exceptions
class EpochError(Exception):
def __init__(self, value):
self.value = value
def __str__(self):
return repr(self.value)
#Utils
#File Load/Store/Length
def read_file(infile):
with open(infile, 'r') as f:
data = ''.join(f.readlines())
return data
def write_file(outfile, data):
with open(outfile, 'w') as f:
f.writelines([data])
return
def get_file_length(infile):
f = open(infile, 'r')
f.seek(0, io.SEEK_END)
length = f.tell()
f.close()
return length
def copyfile(src, dst):
print('copying from ' + src + ' to ' + dst)
shutil.copyfile(src, dst)
#JSON Load/Store
def load_status(infile):
data = '{}'
if os.access(infile, os.R_OK):
data = read_file(infile)
return json.loads(data)
def store_status(outfile, obj):
write_file(outfile, json.dumps(obj))
return
def check_epoch(obj, passname):
epochname = passname + 'Epoch'
if not epochname in obj:
return False
object_epoch = int(obj[epochname])
config_epoch = int(config.getEpochs()[epochname])
if object_epoch > config_epoch:
raise EpochError('Un-excepted larger epoch en-countered.\n' + \
'Please increace the epoch in myconfig.py\n')
if object_epoch < config_epoch:
return False
if object_epoch == config_epoch:
return True
return None
def sign_epoch(obj, passname):
epochname = passname + 'Epoch'
obj[epochname] = config.getEpochs()[epochname]
#test case
if __name__ == '__main__':
obj = load_status('/tmp/test.status')
print(obj)
store_status('/tmp/test.status', obj)
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