Files
RRBEC/gestao_raul/Lib/site-packages/django_extensions/management/commands/runscript.py

300 lines
12 KiB
Python

# -*- coding: utf-8 -*-
import os
import sys
import importlib
import inspect
import traceback
from argparse import ArgumentTypeError
from django.apps import apps
from django.conf import settings
from django.core.management.base import CommandError
from django_extensions.management.email_notifications import EmailNotificationCommand
from django_extensions.management.utils import signalcommand
class DirPolicyChoices:
NONE = 'none'
EACH = 'each'
ROOT = 'root'
def check_is_directory(value):
if value is None or not os.path.isdir(value):
raise ArgumentTypeError("%s is not a directory!" % value)
return value
class BadCustomDirectoryException(Exception):
def __init__(self, value):
self.message = value + ' If --dir-policy is custom than you must set correct directory in ' \
'--dir option or in settings.RUNSCRIPT_CHDIR'
def __str__(self):
return self.message
class Command(EmailNotificationCommand):
help = 'Runs a script in django context.'
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.current_directory = os.getcwd()
self.last_exit_code = 0
def add_arguments(self, parser):
super().add_arguments(parser)
parser.add_argument('script', nargs='+')
parser.add_argument(
'--fixtures', action='store_true', dest='infixtures', default=False,
help='Also look in app.fixtures subdir',
)
parser.add_argument(
'--noscripts', action='store_true', dest='noscripts', default=False,
help='Do not look in app.scripts subdir',
)
parser.add_argument(
'-s', '--silent', action='store_true', dest='silent', default=False,
help='Run silently, do not show errors and tracebacks. Also implies --continue-on-error.',
)
parser.add_argument(
'-c', '--continue-on-error', action='store_true', dest='continue_on_error', default=False,
help='Continue executing other scripts even though one has failed. '
'It will print a traceback unless --no-traceback or --silent are given '
'The exit code used when terminating will always be 1.',
)
parser.add_argument(
'--no-traceback', action='store_true', dest='no_traceback', default=False,
help='Do not show tracebacks',
)
parser.add_argument(
'--script-args', nargs='*', type=str,
help='Space-separated argument list to be passed to the scripts. Note that the '
'same arguments will be passed to all named scripts.',
)
parser.add_argument(
'--dir-policy', type=str,
choices=[DirPolicyChoices.NONE, DirPolicyChoices.EACH, DirPolicyChoices.ROOT],
help='Policy of selecting scripts execution directory: '
'none - start all scripts in current directory '
'each - start all scripts in their directories '
'root - start all scripts in BASE_DIR directory ',
)
parser.add_argument(
'--chdir', type=check_is_directory,
help='If dir-policy option is set to custom, than this option determines script execution directory.',
)
@signalcommand
def handle(self, *args, **options):
NOTICE = self.style.SQL_TABLE
NOTICE2 = self.style.SQL_FIELD
ERROR = self.style.ERROR
ERROR2 = self.style.NOTICE
subdirs = []
scripts = options['script']
if not options['noscripts']:
subdirs.append(getattr(settings, 'RUNSCRIPT_SCRIPT_DIR', 'scripts'))
if options['infixtures']:
subdirs.append('fixtures')
verbosity = options["verbosity"]
show_traceback = options['traceback']
no_traceback = options['no_traceback']
continue_on_error = options['continue_on_error']
if no_traceback:
show_traceback = False
else:
show_traceback = True
silent = options['silent']
if silent:
verbosity = 0
continue_on_error = True
email_notifications = options['email_notifications']
if len(subdirs) < 1:
print(NOTICE("No subdirs to run left."))
return
if len(scripts) < 1:
print(ERROR("Script name required."))
return
def get_directory_from_chdir():
directory = options['chdir'] or getattr(settings, 'RUNSCRIPT_CHDIR', None)
try:
check_is_directory(directory)
except ArgumentTypeError as e:
raise BadCustomDirectoryException(str(e))
return directory
def get_directory_basing_on_policy(script_module):
policy = options['dir_policy'] or getattr(settings, 'RUNSCRIPT_CHDIR_POLICY', DirPolicyChoices.NONE)
if policy == DirPolicyChoices.ROOT:
return settings.BASE_DIR
elif policy == DirPolicyChoices.EACH:
return os.path.dirname(inspect.getfile(script_module))
else:
return self.current_directory
def set_directory(script_module):
if options['chdir']:
directory = get_directory_from_chdir()
elif options['dir_policy']:
directory = get_directory_basing_on_policy(script_module)
elif getattr(settings, 'RUNSCRIPT_CHDIR', None):
directory = get_directory_from_chdir()
else:
directory = get_directory_basing_on_policy(script_module)
os.chdir(os.path.abspath(directory))
def run_script(mod, *script_args):
exit_code = None
try:
set_directory(mod)
exit_code = mod.run(*script_args)
if isinstance(exit_code, bool):
# convert boolean True to exit-code 0 and False to exit-code 1
exit_code = 1 if exit_code else 0
if isinstance(exit_code, int):
if exit_code != 0:
try:
raise CommandError("'%s' failed with exit code %s" % (mod.__name__, exit_code), returncode=exit_code)
except TypeError:
raise CommandError("'%s' failed with exit code %s" % (mod.__name__, exit_code))
if email_notifications:
self.send_email_notification(notification_id=mod.__name__)
except Exception as e:
if isinstance(e, CommandError) and hasattr(e, 'returncode'):
exit_code = e.returncode
self.last_exit_code = exit_code if isinstance(exit_code, int) else 1
if silent:
return
if verbosity > 0:
print(ERROR("Exception while running run() in '%s'" % mod.__name__))
if continue_on_error:
if show_traceback:
traceback.print_exc()
return
if email_notifications:
self.send_email_notification(notification_id=mod.__name__, include_traceback=True)
if no_traceback:
raise CommandError(repr(e))
raise
def my_import(parent_package, module_name):
full_module_path = "%s.%s" % (parent_package, module_name)
if verbosity > 1:
print(NOTICE("Check for %s" % full_module_path))
# Try importing the parent package first
try:
importlib.import_module(parent_package)
except ImportError as e:
if str(e).startswith('No module named'):
# No need to proceed if the parent package doesn't exist
return False
try:
t = importlib.import_module(full_module_path)
except ImportError as e:
# The parent package exists, but the module doesn't
try:
if importlib.util.find_spec(full_module_path) is None:
return False
except Exception:
module_file = os.path.join(settings.BASE_DIR, *full_module_path.split('.')) + '.py'
if not os.path.isfile(module_file):
return False
if silent:
return False
if show_traceback:
traceback.print_exc()
if verbosity > 0:
print(ERROR("Cannot import module '%s': %s." % (full_module_path, e)))
return False
if hasattr(t, "run"):
if verbosity > 1:
print(NOTICE2("Found script '%s' ..." % full_module_path))
return t
else:
if verbosity > 1:
print(ERROR2("Found script '%s' but no run() function found." % full_module_path))
def find_modules_for_script(script):
""" Find script module which contains 'run' attribute """
modules = []
# first look in apps
for app in apps.get_app_configs():
for subdir in subdirs:
mod = my_import("%s.%s" % (app.name, subdir), script)
if mod:
modules.append(mod)
# try direct import
if script.find(".") != -1:
parent, mod_name = script.rsplit(".", 1)
mod = my_import(parent, mod_name)
if mod:
modules.append(mod)
else:
# try app.DIR.script import
for subdir in subdirs:
mod = my_import(subdir, script)
if mod:
modules.append(mod)
return modules
if options['script_args']:
script_args = options['script_args']
else:
script_args = []
# first pass to check if all scripts can be found
script_to_run = []
for script in scripts:
script_modules = find_modules_for_script(script)
if not script_modules:
self.last_exit_code = 1
if verbosity > 0 and not silent:
print(ERROR("No (valid) module for script '%s' found" % script))
continue
script_to_run.extend(script_modules)
if self.last_exit_code:
if verbosity < 2 and not silent:
print(ERROR("Try running with a higher verbosity level like: -v2 or -v3"))
if not continue_on_error:
script_to_run = []
for script_mod in script_to_run:
if verbosity > 1:
print(NOTICE2("Running script '%s' ..." % script_mod.__name__))
run_script(script_mod, *script_args)
if self.last_exit_code != 0:
if silent:
if hasattr(self, 'running_tests'):
return
sys.exit(self.last_exit_code)
try:
raise CommandError("An error has occurred running scripts. See errors above.", returncode=self.last_exit_code)
except TypeError:
# Django < 3.1 fallback
if self.last_exit_code == 1:
# if exit_code is 1 we can still raise CommandError without returncode argument
raise CommandError("An error has occurred running scripts. See errors above.")
print(ERROR("An error has occurred running scripts. See errors above."))
if hasattr(self, 'running_tests'):
return
sys.exit(self.last_exit_code)