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models.py
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models.py
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# Copyright © Michal Čihař <michal@weblate.org>
#
# SPDX-License-Identifier: GPL-3.0-or-later
from __future__ import annotations
import logging
from typing import TYPE_CHECKING, overload
import sentry_sdk
from appconf import AppConf
from django.db import Error as DjangoDatabaseError
from django.db import models, transaction
from django.db.models import Q, QuerySet
from django.db.models.signals import post_save
from django.dispatch import receiver
from django.urls import reverse
from django.utils.functional import cached_property
from weblate.addons.events import AddonEvent
from weblate.trans.models import Alert, Change, Component, Project, Translation, Unit
from weblate.trans.signals import (
component_post_update,
store_post_load,
translation_post_add,
unit_pre_create,
vcs_post_commit,
vcs_post_push,
vcs_post_update,
vcs_pre_commit,
vcs_pre_push,
vcs_pre_update,
)
from weblate.utils.classloader import ClassLoader
from weblate.utils.decorators import disable_for_loaddata
from weblate.utils.errors import report_error
if TYPE_CHECKING:
from collections.abc import Callable, Iterable
from weblate.auth.models import User
# Initialize addons registry
ADDONS = ClassLoader("WEBLATE_ADDONS", False)
class AddonQuerySet(models.QuerySet):
def filter_for_execution(self, component):
query = (
Q(component=component)
| Q(project=component.project)
| (Q(component__linked_component=component) & Q(repo_scope=True))
| (Q(component__isnull=True) & Q(project__isnull=True))
)
if component.linked_component:
query |= Q(component=component.linked_component) & Q(repo_scope=True)
return self.filter(query).prefetch_related("event_set")
def filter_component(self, component):
return self.prefetch_related("event_set").filter(component=component)
def filter_project(self, project):
return self.prefetch_related("event_set").filter(project=project)
def filter_sitewide(self):
return self.prefetch_related("event_set").filter(
component__isnull=True, project__isnull=True
)
def filter_event(self, component, event):
return component.addons_cache[event]
class Addon(models.Model):
component = models.ForeignKey(
Component, on_delete=models.deletion.CASCADE, null=True
)
project = models.ForeignKey(Project, on_delete=models.deletion.CASCADE, null=True)
name = models.CharField(max_length=100)
configuration = models.JSONField(default=dict)
state = models.JSONField(default=dict)
repo_scope = models.BooleanField(default=False, db_index=True)
objects = AddonQuerySet.as_manager()
class Meta:
verbose_name = "add-on"
verbose_name_plural = "add-ons"
def __str__(self) -> str:
return f"{self.addon.verbose}: {self.project or self.component or 'site-wide'}"
def save(
self, force_insert=False, force_update=False, using=None, update_fields=None
):
cls = self.addon_class
self.repo_scope = cls.repo_scope
original_component = None
if cls.project_scope:
original_component = self.component
if self.component:
self.project = self.component.project
self.component = None
# Reallocate to repository
if cls.repo_scope and self.component and self.component.linked_component:
original_component = self.component
self.component = self.component.linked_component
# Clear add-on cache
if self.component:
self.component.drop_addons_cache()
if original_component:
original_component.drop_addons_cache()
# Store history (if not updating state only)
if update_fields != ["state"]:
self.store_change(
Change.ACTION_ADDON_CREATE
if not self.pk or force_insert
else Change.ACTION_ADDON_CHANGE
)
return super().save(
force_insert=force_insert,
force_update=force_update,
using=using,
update_fields=update_fields,
)
def get_absolute_url(self):
return reverse("addon-detail", kwargs={"pk": self.pk})
def __init__(self, *args, acting_user: User | None = None, **kwargs) -> None:
super().__init__(*args, **kwargs)
self.acting_user = acting_user
def store_change(self, action):
Change.objects.create(
action=action,
user=self.acting_user,
project=self.project,
component=self.component,
target=self.name,
details=self.configuration,
)
def configure_events(self, events) -> None:
for event in events:
Event.objects.get_or_create(addon=self, event=event)
self.event_set.exclude(event__in=events).delete()
@cached_property
def addon_class(self):
return ADDONS[self.name]
@cached_property
def addon(self):
return self.addon_class(self)
def delete(self, using=None, keep_parents=False):
# Store history
self.store_change(Change.ACTION_ADDON_REMOVE)
# Delete any addon alerts
if self.addon.alert:
if self.component:
self.component.delete_alert(self.addon.alert)
elif self.project:
Alert.objects.filter(
component__project=self.project,
name=self.addon.alert,
).delete()
else:
Alert.objects.filter(name=self.addon.alert).delete()
result = super().delete(using=using, keep_parents=keep_parents)
# Trigger post uninstall action
self.addon.post_uninstall()
return result
def disable(self) -> None:
self.log_warning("disabling no longer compatible add-on: %s", self.name)
self.delete()
@cached_property
def logger(self) -> logging.Logger:
return logging.getLogger("weblate.addons")
def log_warning(self, message: str, *args):
if self.project:
self.project.log_warning(message, *args)
elif self.component:
self.component.log_warning(message, *args)
else:
self.logger.warning(message, *args)
def log_debug(self, message: str, *args):
if self.project:
self.project.log_debug(message, *args)
elif self.component:
self.component.log_debug(message, *args)
else:
self.logger.debug(message, *args)
def get_addon_activity_logs(self) -> QuerySet[AddonActivityLog]:
"""Return activity logs for add-on."""
return self.addonactivitylog_set.order_by("-created")
class Event(models.Model):
addon = models.ForeignKey(Addon, on_delete=models.deletion.CASCADE, db_index=False)
event = models.IntegerField(choices=AddonEvent.choices)
class Meta:
unique_together = [("addon", "event")]
verbose_name = "add-on event"
verbose_name_plural = "add-on events"
def __str__(self) -> str:
return f"{self.addon}: {self.get_event_display()}"
class AddonsConf(AppConf):
WEBLATE_ADDONS = (
"weblate.addons.gettext.GenerateMoAddon",
"weblate.addons.gettext.UpdateLinguasAddon",
"weblate.addons.gettext.UpdateConfigureAddon",
"weblate.addons.gettext.MsgmergeAddon",
"weblate.addons.gettext.GettextCustomizeAddon",
"weblate.addons.gettext.GettextAuthorComments",
"weblate.addons.cleanup.CleanupAddon",
"weblate.addons.cleanup.RemoveBlankAddon",
"weblate.addons.consistency.LangaugeConsistencyAddon",
"weblate.addons.discovery.DiscoveryAddon",
"weblate.addons.autotranslate.AutoTranslateAddon",
"weblate.addons.flags.SourceEditAddon",
"weblate.addons.flags.TargetEditAddon",
"weblate.addons.flags.SameEditAddon",
"weblate.addons.flags.BulkEditAddon",
"weblate.addons.generate.GenerateFileAddon",
"weblate.addons.generate.PseudolocaleAddon",
"weblate.addons.generate.PrefillAddon",
"weblate.addons.generate.FillReadOnlyAddon",
"weblate.addons.json.JSONCustomizeAddon",
"weblate.addons.xml.XMLCustomizeAddon",
"weblate.addons.properties.PropertiesSortAddon",
"weblate.addons.git.GitSquashAddon",
"weblate.addons.removal.RemoveComments",
"weblate.addons.removal.RemoveSuggestions",
"weblate.addons.resx.ResxUpdateAddon",
"weblate.addons.yaml.YAMLCustomizeAddon",
"weblate.addons.cdn.CDNJSAddon",
)
LOCALIZE_CDN_URL = None
LOCALIZE_CDN_PATH = None
# How long to keep add-on activity log entries
ADDON_ACTIVITY_LOG_EXPIRY = 180
class Meta:
prefix = ""
def execute_addon_event(
addon: Addon,
component: Component,
scope: Translation | Component,
event: AddonEvent,
method: str | Callable,
args: tuple | None = None,
):
# Log logging result and error flag for add-on activity log
log_result = None
error_occurred = False
# Events to exclude from logging
exclude_from_logging = {
AddonEvent.EVENT_UNIT_PRE_CREATE,
AddonEvent.EVENT_UNIT_POST_SAVE,
AddonEvent.EVENT_STORE_POST_LOAD,
}
with transaction.atomic():
scope.log_debug("running %s add-on: %s", event.label, addon.name)
# Skip unsupported components silently
if not addon.component and not addon.addon.can_install(component, None):
scope.log_debug(
"Skipping incompatible %s add-on: %s for component: %s",
event.label,
addon.name,
component.name,
)
return
try:
# Execute event in senty span to track performance
with sentry_sdk.start_span(
op=f"addon.{event.name}", description=addon.name
):
if isinstance(method, str):
log_result = getattr(addon.addon, method)(*args)
else:
# Callback is used in tasks
log_result = method(addon, component)
except DjangoDatabaseError:
raise
except Exception as error:
# Log failure
error_occurred = True
log_result = str(error)
scope.log_error("failed %s add-on: %s: %s", event.label, addon.name, error)
report_error(cause=f"add-on {addon.name} failed", project=component.project)
# Uninstall no longer compatible add-ons
if not addon.addon.can_install(component, None):
addon.disable()
else:
scope.log_debug("completed %s add-on: %s", event.label, addon.name)
finally:
# Check if add-on is still installed and log activity
if event not in exclude_from_logging and addon.pk is not None:
AddonActivityLog.objects.create(
addon=addon,
component=component,
event=event,
details={"result": log_result, "error": error_occurred},
)
@overload
def handle_addon_event(
event: AddonEvent,
method: str,
args: tuple,
*,
component: Component,
translation: None = None,
addon_queryset: AddonQuerySet | None = None,
auto_scope: bool = False,
) -> None: ...
@overload
def handle_addon_event(
event: AddonEvent,
method: str,
args: tuple,
*,
component: None = None,
translation: Translation,
addon_queryset: AddonQuerySet | None = None,
auto_scope: bool = False,
) -> None: ...
@overload
def handle_addon_event(
event: AddonEvent,
method: Callable,
args: None = None,
*,
component: None = None,
translation: None = None,
addon_queryset: AddonQuerySet | None,
auto_scope: bool,
) -> None: ...
def handle_addon_event(
event,
method,
args=None,
*,
component=None,
translation=None,
addon_queryset=None,
auto_scope=False,
) -> None:
# Scope is used for logging
scope = translation or component
# Shortcuts for frequently used variables
if component is None and translation is not None:
component = translation.component
if component is None and not auto_scope:
raise ValueError("Missing event scope!")
# EVENT_DAILY uses custom queryset because it is not triggered from the
# object scope
if addon_queryset is None:
addon_queryset = Addon.objects.filter_event(component, event)
for addon in addon_queryset:
if scope is not None:
execute_addon_event(addon, component, scope, event, method, args)
else:
components: Iterable[Component]
if addon.component:
components = [addon.component]
elif addon.project:
components = addon.project.component_set.iterator()
else:
components = Component.objects.iterator()
for scope_component in components:
execute_addon_event(
addon, scope_component, scope_component, event, method, args
)
@receiver(vcs_pre_push)
def pre_push(sender, component: Component, **kwargs) -> None:
handle_addon_event(
AddonEvent.EVENT_PRE_PUSH,
"pre_push",
(component,),
component=component,
)
@receiver(vcs_post_push)
def post_push(sender, component: Component, **kwargs) -> None:
handle_addon_event(
AddonEvent.EVENT_POST_PUSH,
"post_push",
(component,),
component=component,
)
@receiver(vcs_post_update)
def post_update(
sender,
component: Component,
previous_head: str,
child: bool = False,
skip_push: bool = False,
**kwargs,
) -> None:
handle_addon_event(
AddonEvent.EVENT_POST_UPDATE,
"post_update",
(component, previous_head, skip_push, child),
component=component,
)
@receiver(component_post_update)
def component_update(sender, component: Component, **kwargs) -> None:
handle_addon_event(
AddonEvent.EVENT_COMPONENT_UPDATE,
"component_update",
(component,),
component=component,
)
@receiver(vcs_pre_update)
def pre_update(sender, component: Component, **kwargs) -> None:
handle_addon_event(
AddonEvent.EVENT_PRE_UPDATE,
"pre_update",
(component,),
component=component,
)
@receiver(vcs_pre_commit)
def pre_commit(sender, translation: Translation, author, **kwargs) -> None:
handle_addon_event(
AddonEvent.EVENT_PRE_COMMIT,
"pre_commit",
(translation, author),
translation=translation,
)
@receiver(vcs_post_commit)
def post_commit(sender, component: Component, **kwargs) -> None:
handle_addon_event(
AddonEvent.EVENT_POST_COMMIT,
"post_commit",
(component,),
component=component,
)
@receiver(translation_post_add)
def post_add(sender, translation: Translation, **kwargs) -> None:
handle_addon_event(
AddonEvent.EVENT_POST_ADD,
"post_add",
(translation,),
translation=translation,
)
@receiver(unit_pre_create)
def unit_pre_create_handler(sender, unit: Unit, **kwargs) -> None:
handle_addon_event(
AddonEvent.EVENT_UNIT_PRE_CREATE,
"unit_pre_create",
(unit,),
translation=unit.translation,
)
@receiver(post_save, sender=Unit)
@disable_for_loaddata
def unit_post_save_handler(sender, instance: Unit, created, **kwargs) -> None:
handle_addon_event(
AddonEvent.EVENT_UNIT_POST_SAVE,
"unit_post_save",
(instance, created),
translation=instance.translation,
)
@receiver(store_post_load)
def store_post_load_handler(sender, translation: Translation, store, **kwargs) -> None:
handle_addon_event(
AddonEvent.EVENT_STORE_POST_LOAD,
"store_post_load",
(translation, store),
translation=translation,
)
class AddonActivityLog(models.Model):
addon = models.ForeignKey(Addon, on_delete=models.deletion.CASCADE)
component = models.ForeignKey(Component, on_delete=models.deletion.CASCADE)
event = models.IntegerField(choices=AddonEvent.choices)
created = models.DateTimeField(auto_now_add=True)
details = models.JSONField(default=dict)
class Meta:
verbose_name = "add-on activity log"
verbose_name_plural = "add-on activity logs"
ordering = ["-created"]
def __str__(self):
return f"{self.addon}: {self.get_event_display()} at {self.created}"