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main.py
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/
main.py
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import sys
import parser
import os
from pygtail import Pygtail
import raven
def is_erased(file_name):
inode = os.stat(file_name).st_ino
file_size = os.stat(file_name).st_size
saved_inode, saved_offset = get_offset_info(file_name)
if(file_size < saved_offset) and (saved_inode == inode):
return True
else:
return False
def get_offset_info(file_name):
offset_file = ".offset/" + file_name
with open(offset_file, 'r') as f:
inode = int(f.readline()) # read inode
offset = int(f.readline()) # read offset
return inode, offset
if __name__ == '__main__':
# initialize connection to sentry server
client = raven.Client(
dsn="http://ea8723b06f824d55b49031a702caa2c6:20fdb8b37c354c05b9c5c6ae1807c4a7@sentry.platform.vn/11"
)
if len(sys.argv) < 2 or len(sys.argv) > 2:
print "Wrong command"
print "Format: python {} [file-log]".format(sys.argv[0])
exit()
file_name = sys.argv[1]
OFFSET_FILE = ".offset/" + file_name
if not os.path.exists(".offset"):
os.makedirs(".offset")
try:
if is_erased(file_name):
# forget about saved offset
# delete offset file
# print "remove file" # test point
os.remove(OFFSET_FILE)
except IOError:
# Error occur when first time run
pass
try:
pyg = Pygtail(file_name, OFFSET_FILE)
first_line = pyg.next()
# get log format and log type
log_type, log_format = parser.detect_log_type(first_line)
for line in Pygtail(file_name, OFFSET_FILE):
# print line # test point
error_info = parser.parse_log(line, log_type, log_format)
status_code = error_info['status_code']
if status_code == 502 or status_code == 503:
client.capture(
"raven.events.Message",
message=log_type + " " + str(status_code),
extra=error_info,
date=error_info['time']
)
except StopIteration:
print "Nothing else to read"
except Exception, e:
client.captureException()