rana-cli/wakatime/offlinequeue.py

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# -*- coding: utf-8 -*-
"""
wakatime.offlinequeue
~~~~~~~~~~~~~~~~~~~~~
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Queue for saving heartbeats while offline.
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:copyright: (c) 2014 Alan Hamlett.
:license: BSD, see LICENSE for more details.
"""
import logging
import os
import traceback
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from time import sleep
try:
import sqlite3
HAS_SQL = True
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except ImportError: # pragma: nocover
HAS_SQL = False
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from .compat import u
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log = logging.getLogger('WakaTime')
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class Queue(object):
db_file = os.path.join(os.path.expanduser('~'), '.wakatime.db')
table_name = 'heartbeat_1'
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def connect(self):
conn = sqlite3.connect(self.db_file)
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c = conn.cursor()
c.execute('''CREATE TABLE IF NOT EXISTS {0} (
entity text,
type text,
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time real,
project text,
branch text,
is_write integer,
stats text,
misc text,
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plugin text)
'''.format(self.table_name))
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return (conn, c)
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def push(self, data, stats, plugin, misc=None):
if not HAS_SQL:
return
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try:
conn, c = self.connect()
heartbeat = {
'entity': u(data.get('entity')),
'type': u(data.get('type')),
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'time': data.get('time'),
'project': u(data.get('project')),
'branch': u(data.get('branch')),
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'is_write': 1 if data.get('is_write') else 0,
'stats': u(stats),
'misc': u(misc),
'plugin': u(plugin),
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}
c.execute('INSERT INTO {0} VALUES (:entity,:type,:time,:project,:branch,:is_write,:stats,:misc,:plugin)'.format(self.table_name), heartbeat)
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conn.commit()
conn.close()
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except sqlite3.Error:
log.error(traceback.format_exc())
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def pop(self):
if not HAS_SQL:
return None
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tries = 3
wait = 0.1
heartbeat = None
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try:
conn, c = self.connect()
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except sqlite3.Error:
log.debug(traceback.format_exc())
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return None
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loop = True
while loop and tries > -1:
try:
c.execute('BEGIN IMMEDIATE')
c.execute('SELECT * FROM {0} LIMIT 1'.format(self.table_name))
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row = c.fetchone()
if row is not None:
values = []
clauses = []
index = 0
for row_name in ['entity', 'type', 'time', 'project', 'branch', 'is_write']:
if row[index] is not None:
clauses.append('{0}=?'.format(row_name))
values.append(row[index])
else:
clauses.append('{0} IS NULL'.format(row_name))
index += 1
if len(values) > 0:
c.execute('DELETE FROM {0} WHERE {1}'.format(self.table_name, ' AND '.join(clauses)), values)
else:
c.execute('DELETE FROM {0} WHERE {1}'.format(self.table_name, ' AND '.join(clauses)))
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conn.commit()
if row is not None:
heartbeat = {
'entity': row[0],
'type': row[1],
'time': row[2],
'project': row[3],
'branch': row[4],
'is_write': True if row[5] is 1 else False,
'stats': row[6],
'misc': row[7],
'plugin': row[8],
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}
loop = False
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except sqlite3.Error: # pragma: nocover
log.debug(traceback.format_exc())
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sleep(wait)
tries -= 1
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try:
conn.close()
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except sqlite3.Error: # pragma: nocover
log.debug(traceback.format_exc())
return heartbeat