def finalize_app(app):
"""Prepare application for running"""
from datacat.db import db_info
with app.app_context():
app.plugins = load_plugins(app)
previously_enabled_plugins = set(db_info.get('core.plugins_enabled', [])) # noqa
previously_installed_plugins = set(db_info.get('core.plugins_installed', [])) # noqa
enabled_plugins = set(app.config['PLUGINS'])
# ------------------------------------------------------------
# Run the ``install()`` method for all the plugins that
# were not previously installed
plugins_to_install = enabled_plugins - previously_installed_plugins
# ------------------------------------------------------------
# Run the ``enable()`` method for all the plugins that
# were not previously enabled
plugins_to_enable = enabled_plugins - previously_enabled_plugins
# ------------------------------------------------------------
# Run the ``disable()`` method for all the plugins that
# were previously enabled (and aren't anymore)
plugins_to_disable = previously_enabled_plugins - enabled_plugins
# Nothing will be uninstalled implicitly!
# ------------------------------------------------------------
# Perform the operations from above
# ------------------------------------------------------------
for plugin in app.plugins:
if plugin._import_name in plugins_to_install:
plugin.install()
if plugin._import_name in plugins_to_enable:
plugin.enable()
if plugin._import_name in plugins_to_disable:
plugin.disable()
if plugin._import_name in enabled_plugins:
plugin.upgrade()
# ------------------------------------------------------------
# Register new information about plugins
db_info['core.plugins_enabled'] = list(enabled_plugins)
db_info['core.plugins_installed'] = list(
previously_installed_plugins | enabled_plugins)
def finalize_app(app):
"""Prepare application for running"""
from datacat.db import db_info
with app.app_context():
app.plugins = load_plugins(app)
previously_enabled_plugins = set(db_info.get('core.plugins_enabled', [])) # noqa
previously_installed_plugins = set(db_info.get('core.plugins_installed', [])) # noqa
enabled_plugins = set(app.config['PLUGINS'])
# ------------------------------------------------------------
# Run the ``install()`` method for all the plugins that
# were not previously installed
plugins_to_install = enabled_plugins - previously_installed_plugins
# ------------------------------------------------------------
# Run the ``enable()`` method for all the plugins that
# were not previously enabled
plugins_to_enable = enabled_plugins - previously_enabled_plugins
# ------------------------------------------------------------
# Run the ``disable()`` method for all the plugins that
# were previously enabled (and aren't anymore)
plugins_to_disable = previously_enabled_plugins - enabled_plugins
# Nothing will be uninstalled implicitly!
# ------------------------------------------------------------
# Perform the operations from above
# ------------------------------------------------------------
for plugin in app.plugins:
if plugin._import_name in plugins_to_install:
plugin.install()
if plugin._import_name in plugins_to_enable:
plugin.enable()
if plugin._import_name in plugins_to_disable:
plugin.disable()
if plugin._import_name in enabled_plugins:
plugin.upgrade()
# ------------------------------------------------------------
# Register new information about plugins
db_info['core.plugins_enabled'] = list(enabled_plugins)
db_info['core.plugins_installed'] = list(
previously_installed_plugins | enabled_plugins)
def upgrade(self):
"""
Perform necessary database schema upgrades.
"""
from datacat.db import db_info
schema_version_key = 'plugin.{0}.schema_version'\
.format(self.import_name)
current_version = db_info.get(schema_version_key, -1)
upgrade_methods = self._get_upgrade_methods() # Must be sorted!
for upgrade_id, method in upgrade_methods:
if upgrade_id > current_version:
method()
db_info[schema_version_key] = upgrade_id
