Mercurial > libervia-backend

annotate libervia/backend/core/launcher.py @ 4256:c14e904eee13

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core: fix SCRAM challenge parsing.
author Goffi <goffi@goffi.org>
date Sat, 01 Jun 2024 22:35:47 +0200
parents b26339343076
children 0d7bb4df2343
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #!/usr/bin/env python3
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2
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3 # Libervia: an XMPP client
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4 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
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5
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6 # This program is free software: you can redistribute it and/or modify
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7 # it under the terms of the GNU Affero General Public License as published by
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8 # the Free Software Foundation, either version 3 of the License, or
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9 # (at your option) any later version.
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10
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11 # This program is distributed in the hope that it will be useful,
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 # GNU Affero General Public License for more details.
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15
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16 # You should have received a copy of the GNU Affero General Public License
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17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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18
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19 """Script launching SàT backend"""
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20
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21 import sys
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22 import os
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23 import argparse
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24 from pathlib import Path
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25 from configparser import ConfigParser
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26 from twisted.application import app
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27 from twisted.python import usage
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28 from libervia.backend.core.constants import Const as C
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29
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30
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31 class LiberviaLogger(app.AppLogger):
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32 def start(self, application):
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33 # logging is initialised by libervia.baceknd.core.log_config via the Twisted
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34 # plugin, nothing to do here
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35 self._initialLog()
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36
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37 def stop(self):
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38 pass
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39
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40
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41 class Launcher:
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42 APP_NAME = C.APP_NAME
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43 APP_NAME_FILE = C.APP_NAME_FILE
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44
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45 @property
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46 def NOT_RUNNING_MSG(self):
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47 return f"{self.APP_NAME} is *NOT* running"
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48
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49 def cmd_no_subparser(self, args):
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50 """Command launched by default"""
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51 args.extra_args = []
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52 self.cmd_background(args)
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53
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54 def cmd_background(self, args):
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55 self.run_twistd(args)
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56
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57 def cmd_foreground(self, args):
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58 self.run_twistd(args, twistd_opts=["--nodaemon"])
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59
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60 def cmd_debug(self, args):
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61 self.run_twistd(args, twistd_opts=["--debug"])
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62
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63 def cmd_stop(self, args):
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64 import signal
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65 import time
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66
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67 config = self.get_config()
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68 pid_file = self.get_pid_file(config)
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69 if not pid_file.is_file():
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70 print(self.NOT_RUNNING_MSG)
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71 sys.exit(0)
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72 try:
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73 pid = int(pid_file.read_text())
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74 except Exception as e:
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75 print(f"Can't read PID file at {pid_file}: {e}")
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76 # we use the same exit code as DATA_ERROR in CLI frontend
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77 sys.exit(17)
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78 print(f"Terminating {self.APP_NAME}…")
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79 os.kill(pid, signal.SIGTERM)
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80 kill_started = time.time()
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81 state = "init"
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82 import errno
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83
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84 while True:
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85 try:
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86 os.kill(pid, 0)
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87 except OSError as e:
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88 if e.errno == errno.ESRCH:
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89 break
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90 elif e.errno == errno.EPERM:
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91 print(
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92 f"Can't kill {self.APP_NAME}, the process is owned by an other user",
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93 file=sys.stderr,
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94 )
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95 sys.exit(18)
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96 else:
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97 raise e
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98 time.sleep(0.2)
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99 now = time.time()
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100 if state == "init" and now - kill_started > 5:
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101 if state == "init":
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102 state = "waiting"
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103 print(f"Still waiting for {self.APP_NAME} to be terminated…")
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104 elif state == "waiting" and now - kill_started > 10:
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105 state == "killing"
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106 print("Waiting for too long, we kill the process")
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107 os.kill(pid, signal.SIGKILL)
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108 sys.exit(1)
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109
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110 sys.exit(0)
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111
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112 def cmd_status(self, args):
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113 config = self.get_config()
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114 pid_file = self.get_pid_file(config)
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115 if pid_file.is_file():
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116 import errno
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117
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118 try:
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119 pid = int(pid_file.read_text())
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120 except Exception as e:
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121 print(f"Can't read PID file at {pid_file}: {e}")
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122 # we use the same exit code as DATA_ERROR in CLI frontend
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123 sys.exit(17)
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124 # we check if there is a process
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125 # inspired by https://stackoverflow.com/a/568285 and https://stackoverflow.com/a/6940314
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126 try:
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127 os.kill(pid, 0)
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128 except OSError as e:
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129 if e.errno == errno.ESRCH:
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parents: 3263
diff changeset
130 running = False
a3639d6d9643 core: replaced `sat` shell script by a python script:
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parents: 3263
diff changeset
131 elif e.errno == errno.EPERM:
a3639d6d9643 core: replaced `sat` shell script by a python script:
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parents: 3263
diff changeset
132 print("Process {pid} is run by an other user")
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diff changeset
133 running = True
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parents: 3263
diff changeset
134 else:
a3639d6d9643 core: replaced `sat` shell script by a python script:
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parents: 3263
diff changeset
135 running = True
931
3b30e9f83d88 misc: sat stop would not kill all sat instances anymore
souliane <souliane@mailoo.org>
parents: 930
diff changeset
136
3281
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diff changeset
137 if running:
a3639d6d9643 core: replaced `sat` shell script by a python script:
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diff changeset
138 print(f"{self.APP_NAME} is running (pid: {pid})")
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diff changeset
139 sys.exit(0)
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parents: 3263
diff changeset
140 else:
4194
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diff changeset
141 print(
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diff changeset
142 f"{self.NOT_RUNNING_MSG}, but a pid file is present (bad exit ?): {pid_file}"
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parents: 4081
diff changeset
143 )
3281
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parents: 3263
diff changeset
144 sys.exit(2)
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diff changeset
145 else:
a3639d6d9643 core: replaced `sat` shell script by a python script:
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parents: 3263
diff changeset
146 print(self.NOT_RUNNING_MSG)
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diff changeset
147 sys.exit(1)
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diff changeset
148
a3639d6d9643 core: replaced `sat` shell script by a python script:
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parents: 3263
diff changeset
149 def parse_args(self):
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diff changeset
150 parser = argparse.ArgumentParser(description=f"Launch {self.APP_NAME} backend")
3284
751d8fa45ced core (launcher): fixed launching of twistd when no subparsed is specified
Goffi <goffi@goffi.org>
parents: 3282
diff changeset
151 parser.set_defaults(cmd=self.cmd_no_subparser)
3281
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diff changeset
152 subparsers = parser.add_subparsers()
3282
e7e7be79fbcd core (launcher): extra arguments can now be passed the service with `bg`, `fg` and `dbg`:
Goffi <goffi@goffi.org>
parents: 3281
diff changeset
153 extra_help = f"arguments to pass to {self.APP_NAME} service"
3281
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diff changeset
154
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diff changeset
155 bg_parser = subparsers.add_parser(
4194
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diff changeset
156 "background",
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diff changeset
157 aliases=["bg"],
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parents: 4081
diff changeset
158 help=f"run {self.APP_NAME} backend in background (as a daemon)",
3dbaf179c50d core (launcher): new `wait_for_service` option:
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parents: 4081
diff changeset
159 )
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
160 bg_parser.add_argument("extra_args", nargs=argparse.REMAINDER, help=extra_help)
3281
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parents: 3263
diff changeset
161 bg_parser.set_defaults(cmd=self.cmd_background)
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parents: 3263
diff changeset
162
a3639d6d9643 core: replaced `sat` shell script by a python script:
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parents: 3263
diff changeset
163 fg_parser = subparsers.add_parser(
4194
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Goffi <goffi@goffi.org>
parents: 4081
diff changeset
164 "foreground",
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Goffi <goffi@goffi.org>
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diff changeset
165 aliases=["fg"],
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parents: 4081
diff changeset
166 help=f"run {self.APP_NAME} backend in foreground",
3dbaf179c50d core (launcher): new `wait_for_service` option:
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parents: 4081
diff changeset
167 )
3dbaf179c50d core (launcher): new `wait_for_service` option:
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parents: 4081
diff changeset
168 fg_parser.add_argument("extra_args", nargs=argparse.REMAINDER, help=extra_help)
3281
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diff changeset
169 fg_parser.set_defaults(cmd=self.cmd_foreground)
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parents: 3263
diff changeset
170
a3639d6d9643 core: replaced `sat` shell script by a python script:
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parents: 3263
diff changeset
171 dbg_parser = subparsers.add_parser(
4194
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Goffi <goffi@goffi.org>
parents: 4081
diff changeset
172 "debug", aliases=["dbg"], help=f"run {self.APP_NAME} backend in debug mode"
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Goffi <goffi@goffi.org>
parents: 4081
diff changeset
173 )
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
174 dbg_parser.add_argument("extra_args", nargs=argparse.REMAINDER, help=extra_help)
3281
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diff changeset
175 dbg_parser.set_defaults(cmd=self.cmd_debug)
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parents: 3263
diff changeset
176
a3639d6d9643 core: replaced `sat` shell script by a python script:
Goffi <goffi@goffi.org>
parents: 3263
diff changeset
177 stop_parser = subparsers.add_parser(
4194
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
178 "stop", help=f"stop running {self.APP_NAME} backend"
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
179 )
3281
a3639d6d9643 core: replaced `sat` shell script by a python script:
Goffi <goffi@goffi.org>
parents: 3263
diff changeset
180 stop_parser.set_defaults(cmd=self.cmd_stop)
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parents: 3263
diff changeset
181
a3639d6d9643 core: replaced `sat` shell script by a python script:
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parents: 3263
diff changeset
182 status_parser = subparsers.add_parser(
4194
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
183 "status", help=f"indicate if {self.APP_NAME} backend is running"
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
184 )
3281
a3639d6d9643 core: replaced `sat` shell script by a python script:
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diff changeset
185 status_parser.set_defaults(cmd=self.cmd_status)
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diff changeset
186
a3639d6d9643 core: replaced `sat` shell script by a python script:
Goffi <goffi@goffi.org>
parents: 3263
diff changeset
187 return parser.parse_args()
931
3b30e9f83d88 misc: sat stop would not kill all sat instances anymore
souliane <souliane@mailoo.org>
parents: 930
diff changeset
188
3281
a3639d6d9643 core: replaced `sat` shell script by a python script:
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diff changeset
189 def get_config(self):
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diff changeset
190 config = ConfigParser(defaults=C.DEFAULT_CONFIG)
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parents: 3263
diff changeset
191 try:
a3639d6d9643 core: replaced `sat` shell script by a python script:
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diff changeset
192 config.read(C.CONFIG_FILES)
a3639d6d9643 core: replaced `sat` shell script by a python script:
Goffi <goffi@goffi.org>
parents: 3263
diff changeset
193 except Exception as e:
4194
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
194 print(rf"/!\ Can't read main config! {e}")
3281
a3639d6d9643 core: replaced `sat` shell script by a python script:
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diff changeset
195 sys.exit(1)
a3639d6d9643 core: replaced `sat` shell script by a python script:
Goffi <goffi@goffi.org>
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diff changeset
196 return config
225
fd9b7834d98a distutils installation script, draft
Goffi <goffi@goffi.org>
parents: 223
diff changeset
197
3281
a3639d6d9643 core: replaced `sat` shell script by a python script:
Goffi <goffi@goffi.org>
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diff changeset
198 def get_pid_file(self, config):
4194
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
199 pid_dir = Path(config.get("DEFAULT", "pid_dir")).expanduser()
4202
b26339343076 core: use a user specific directory for PID file:
Goffi <goffi@goffi.org>
parents: 4194
diff changeset
200 pid_dir.mkdir(parents=True, exist_ok=True)
3281
a3639d6d9643 core: replaced `sat` shell script by a python script:
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diff changeset
201 return pid_dir / f"{self.APP_NAME_FILE}.pid"
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parents: 3263
diff changeset
202
4194
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
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diff changeset
203 def wait_for_service(
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
204 self,
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
205 service_host: str,
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
206 service_port: int,
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
207 timeout: int,
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
208 service_name: str
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
209 ) -> None:
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
210 """Waits for a network service to become available.
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
211
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
212 @param service_host: The hostname or IP address of the service.
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
213 @param service_port: The port number of the service.
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
214 @param timeout: The maximum number of seconds to wait for the service.
3dbaf179c50d core (launcher): new `wait_for_service` option:
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parents: 4081
diff changeset
215 @param service_name: The name of the service.
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
216
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
217 @raise TimeoutError: If the service is not available within the specified timeout.
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
218 """
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
219 import socket
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
220 import time
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
221
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
222 start_time = time.time()
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
223 wait_interval = 5
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
224
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
225 while True:
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
226 with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
227 sock.settimeout(1)
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
228 try:
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
229 sock.connect((service_host, service_port))
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
230 return
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
231 except socket.error:
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
232 elapsed_time = time.time() - start_time
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
233 if elapsed_time % wait_interval < 1:
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
234 print(f"Waiting for {service_name}…")
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
235 if elapsed_time > timeout:
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
236 raise TimeoutError(
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
237 f"{service_name} on {service_host}:{service_port} not "
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
238 f"available after {timeout} seconds."
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
239 )
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
240 time.sleep(1)
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
241
3281
a3639d6d9643 core: replaced `sat` shell script by a python script:
Goffi <goffi@goffi.org>
parents: 3263
diff changeset
242 def run_twistd(self, args, twistd_opts=None):
a3639d6d9643 core: replaced `sat` shell script by a python script:
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parents: 3263
diff changeset
243 """Run twistd settings options with args"""
a3639d6d9643 core: replaced `sat` shell script by a python script:
Goffi <goffi@goffi.org>
parents: 3263
diff changeset
244 from twisted.python.runtime import platformType
4194
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
245
3281
a3639d6d9643 core: replaced `sat` shell script by a python script:
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diff changeset
246 if platformType == "win32":
4194
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
247 from twisted.scripts._twistw import (
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
248 ServerOptions,
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
249 WindowsApplicationRunner as app_runner,
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
250 )
3281
a3639d6d9643 core: replaced `sat` shell script by a python script:
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diff changeset
251 else:
4194
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
252 from twisted.scripts._twistd_unix import (
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Goffi <goffi@goffi.org>
parents: 4081
diff changeset
253 ServerOptions,
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
254 UnixApplicationRunner as app_runner,
3dbaf179c50d core (launcher): new `wait_for_service` option:
Goffi <goffi@goffi.org>
parents: 4081
diff changeset
255 )
225
fd9b7834d98a distutils installation script, draft
Goffi <goffi@goffi.org>
parents: 223
diff changeset
256
4071
4b842c1fb686 refactoring: renamed `sat` package to `libervia.backend`
Goffi <goffi@goffi.org>
parents: 3480
diff changeset
257 app_runner.loggerFactory = LiberviaLogger
3281
a3639d6d9643 core: replaced `sat` shell script by a python script:
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parents: 3263
diff changeset
258 server_options = ServerOptions()
a3639d6d9643 core: replaced `sat` shell script by a python script:
Goffi <goffi@goffi.org>
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diff changeset
259 config = self.get_config()
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260
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261 # wait for a service (e.g. XMPP server)
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262 wait_for_service_value = config.get(
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263 "DEFAULT", "init_wait_for_service", fallback=None
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264 )
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265
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266 if wait_for_service_value is not None:
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267 try:
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268 # Syntax: [ipv6_address]:port[:timeout][:service_name]
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269 # or hostname:port[:timeout][:service_name]
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270 parts = wait_for_service_value.split(":")
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271 if parts[0] and parts[0][0] == "[" and parts[0][-1] == "]":
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272 # IPv6 address
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273 host = parts[0][1:-1]
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274 else:
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275 # Hostname or IPv4
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276 host = parts[0]
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277
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278 port = int(parts[1])
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279
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280 # Defaults
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281 timeout = 60
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282 service_name = "service"
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283
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284 if len(parts) > 2:
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285 timeout_part = parts[2]
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286 # Check if timeout is skipped (double colon for service_name)
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287 if timeout_part:
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288 timeout = int(timeout_part)
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289 if len(parts) > 3:
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290 service_name = parts[3]
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291 except (ValueError, IndexError):
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292 raise ValueError(
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293 f'Invalid "init_wait_for_service" value: {wait_for_service_value!r}'
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294 )
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295 else:
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296 self.wait_for_service(host, port, timeout, service_name)
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297
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298 pid_file = self.get_pid_file(config)
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299 log_dir = Path(config.get("DEFAULT", "log_dir")).expanduser()
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300 log_file = log_dir / f"{self.APP_NAME_FILE}.log"
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301 server_opts = [
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302 "--no_save",
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303 "--pidfile",
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304 str(pid_file),
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305 "--logfile",
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306 str(log_file),
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307 ]
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308 if twistd_opts is not None:
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309 server_opts.extend(twistd_opts)
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310 server_opts.append(self.APP_NAME_FILE)
3282
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diff changeset
311 if args.extra_args:
e7e7be79fbcd core (launcher): extra arguments can now be passed the service with `bg`, `fg` and `dbg`:
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diff changeset
312 try:
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313 args.extra_args.remove("--")
3282
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314 except ValueError:
e7e7be79fbcd core (launcher): extra arguments can now be passed the service with `bg`, `fg` and `dbg`:
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315 pass
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diff changeset
316 server_opts.extend(args.extra_args)
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diff changeset
317 try:
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diff changeset
318 server_options.parseOptions(server_opts)
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diff changeset
319 except usage.error as ue:
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320 print(server_options)
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diff changeset
321 print("%s: %s" % (sys.argv[0], ue))
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322 sys.exit(1)
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diff changeset
323 else:
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324 runner = app_runner(server_options)
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325 runner.run()
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326 if runner._exitSignal is not None:
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327 app._exitWithSignal(runner._exitSignal)
3416
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diff changeset
328 try:
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diff changeset
329 sys.exit(app._exitCode)
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diff changeset
330 except AttributeError:
d7cfb031e41f core (launcher): exit code can now specified
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diff changeset
331 pass
226
d8bb72f00eec distutils install: fixed plugin import and log file path
Goffi <goffi@goffi.org>
parents: 225
diff changeset
332
3281
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diff changeset
333 @classmethod
a3639d6d9643 core: replaced `sat` shell script by a python script:
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diff changeset
334 def run(cls):
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diff changeset
335 args = cls().parse_args()
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diff changeset
336 args.cmd(args)
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diff changeset
337
a3639d6d9643 core: replaced `sat` shell script by a python script:
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diff changeset
338
4194
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diff changeset
339 if __name__ == "__main__":
3281
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diff changeset
340 Launcher.run()