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@@ -1,130 +1,130 b'' | |||
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1 | 1 | # -*- coding: utf-8 -*- |
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2 | 2 | """ |
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3 | 3 | rhodecode.lib.celerylib.__init__ |
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4 | 4 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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5 | 5 | |
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6 | 6 | celery libs for RhodeCode |
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7 | 7 | |
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8 | 8 | :created_on: Nov 27, 2010 |
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9 | 9 | :author: marcink |
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10 | 10 | :copyright: (C) 2010-2012 Marcin Kuzminski <marcin@python-works.com> |
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11 | 11 | :license: GPLv3, see COPYING for more details. |
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12 | 12 | """ |
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13 | 13 | # This program is free software: you can redistribute it and/or modify |
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14 | 14 | # it under the terms of the GNU General Public License as published by |
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15 | 15 | # the Free Software Foundation, either version 3 of the License, or |
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16 | 16 | # (at your option) any later version. |
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17 | 17 | # |
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18 | 18 | # This program is distributed in the hope that it will be useful, |
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19 | 19 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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20 | 20 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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21 | 21 | # GNU General Public License for more details. |
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22 | 22 | # |
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23 | 23 | # You should have received a copy of the GNU General Public License |
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24 | 24 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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25 | 25 | |
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26 | 26 | import os |
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27 | 27 | import sys |
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28 | 28 | import socket |
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29 | 29 | import traceback |
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30 | 30 | import logging |
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31 | 31 | from os.path import dirname as dn, join as jn |
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32 | 32 | from pylons import config |
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33 | 33 | |
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34 | 34 | from hashlib import md5 |
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35 | 35 | from decorator import decorator |
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36 | 36 | |
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37 | 37 | from rhodecode.lib.vcs.utils.lazy import LazyProperty |
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38 | 38 | from rhodecode import CELERY_ON, CELERY_EAGER |
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39 | 39 | from rhodecode.lib.utils2 import str2bool, safe_str |
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40 | 40 | from rhodecode.lib.pidlock import DaemonLock, LockHeld |
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41 | 41 | from rhodecode.model import init_model |
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42 | 42 | from rhodecode.model import meta |
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43 | 43 | from rhodecode.model.db import Statistics, Repository, User |
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44 | 44 | |
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45 | 45 | from sqlalchemy import engine_from_config |
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46 | 46 | |
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47 | 47 | from celery.messaging import establish_connection |
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48 | 48 | |
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49 | 49 | log = logging.getLogger(__name__) |
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50 | 50 | |
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51 | 51 | |
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52 | 52 | class ResultWrapper(object): |
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53 | 53 | def __init__(self, task): |
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54 | 54 | self.task = task |
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55 | 55 | |
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56 | 56 | @LazyProperty |
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57 | 57 | def result(self): |
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58 | 58 | return self.task |
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59 | 59 | |
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60 | 60 | |
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61 | 61 | def run_task(task, *args, **kwargs): |
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62 | global CELERY_ON | |
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62 | 63 | if CELERY_ON: |
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63 | 64 | try: |
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64 | 65 | t = task.apply_async(args=args, kwargs=kwargs) |
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65 | 66 | log.info('running task %s:%s' % (t.task_id, task)) |
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66 | 67 | return t |
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67 | 68 | |
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68 | 69 | except socket.error, e: |
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69 | 70 | if isinstance(e, IOError) and e.errno == 111: |
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70 | 71 | log.debug('Unable to connect to celeryd. Sync execution') |
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71 | global CELERY_ON | |
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72 | 72 | CELERY_ON = False |
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73 | 73 | else: |
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74 | 74 | log.error(traceback.format_exc()) |
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75 | 75 | except KeyError, e: |
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76 | 76 | log.debug('Unable to connect to celeryd. Sync execution') |
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77 | 77 | except Exception, e: |
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78 | 78 | log.error(traceback.format_exc()) |
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79 | 79 | |
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80 | 80 | log.debug('executing task %s in sync mode' % task) |
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81 | 81 | return ResultWrapper(task(*args, **kwargs)) |
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82 | 82 | |
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83 | 83 | |
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84 | 84 | def __get_lockkey(func, *fargs, **fkwargs): |
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85 | 85 | params = list(fargs) |
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86 | 86 | params.extend(['%s-%s' % ar for ar in fkwargs.items()]) |
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87 | 87 | |
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88 | 88 | func_name = str(func.__name__) if hasattr(func, '__name__') else str(func) |
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89 | 89 | |
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90 | 90 | lockkey = 'task_%s.lock' % \ |
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91 | 91 | md5(func_name + '-' + '-'.join(map(safe_str, params))).hexdigest() |
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92 | 92 | return lockkey |
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93 | 93 | |
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94 | 94 | |
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95 | 95 | def locked_task(func): |
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96 | 96 | def __wrapper(func, *fargs, **fkwargs): |
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97 | 97 | lockkey = __get_lockkey(func, *fargs, **fkwargs) |
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98 | 98 | lockkey_path = config['app_conf']['cache_dir'] |
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99 | 99 | |
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100 | 100 | log.info('running task with lockkey %s' % lockkey) |
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101 | 101 | try: |
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102 | 102 | l = DaemonLock(file_=jn(lockkey_path, lockkey)) |
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103 | 103 | ret = func(*fargs, **fkwargs) |
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104 | 104 | l.release() |
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105 | 105 | return ret |
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106 | 106 | except LockHeld: |
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107 | 107 | log.info('LockHeld') |
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108 | 108 | return 'Task with key %s already running' % lockkey |
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109 | 109 | |
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110 | 110 | return decorator(__wrapper, func) |
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111 | 111 | |
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112 | 112 | |
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113 | 113 | def get_session(): |
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114 | 114 | if CELERY_ON: |
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115 | 115 | engine = engine_from_config(config, 'sqlalchemy.db1.') |
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116 | 116 | init_model(engine) |
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117 | 117 | sa = meta.Session() |
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118 | 118 | return sa |
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119 | 119 | |
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120 | 120 | |
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121 | 121 | def dbsession(func): |
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122 | 122 | def __wrapper(func, *fargs, **fkwargs): |
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123 | 123 | try: |
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124 | 124 | ret = func(*fargs, **fkwargs) |
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125 | 125 | return ret |
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126 | 126 | finally: |
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127 | 127 | if CELERY_ON and CELERY_EAGER is False: |
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128 | 128 | meta.Session.remove() |
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129 | 129 | |
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130 | 130 | return decorator(__wrapper, func) |
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