Mercurial > libervia-backend
view libervia/backend/memory/migration/alembic.ini @ 4212:5f2d496c633f
core: get rid of `pickle`:
Use of `pickle` to serialise data was a technical legacy that was causing trouble to store
in database, to update (if a class was serialised, a change could break update), and to
security (pickle can lead to code execution).
This patch remove all use of Pickle in favour in JSON, notably:
- for caching data, a Pydantic model is now used instead
- for SQLAlchemy model, the LegacyPickle is replaced by JSON serialisation
- in XEP-0373 a class `PublicKeyMetadata` was serialised. New method `from_dict` and
`to_dict` method have been implemented to do serialisation.
- new methods to (de)serialise data can now be specified with Identity data types. It is
notably used to (de)serialise `path` of avatars.
A migration script has been created to convert data (for upgrade or downgrade), with
special care for XEP-0373 case. Depending of size of database, this migration script can
be long to run.
rel 443
author | Goffi <goffi@goffi.org> |
---|---|
date | Fri, 23 Feb 2024 13:31:04 +0100 |
parents | 4b842c1fb686 |
children |
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# A generic, single database configuration. [alembic] # path to migration scripts script_location = %(here)s # template used to generate migration files # file_template = %%(rev)s_%%(slug)s # sys.path path, will be prepended to sys.path if present. # defaults to the current working directory. # prepend_sys_path = . # timezone to use when rendering the date # within the migration file as well as the filename. # string value is passed to dateutil.tz.gettz() # leave blank for localtime # timezone = # max length of characters to apply to the # "slug" field # truncate_slug_length = 40 # set to 'true' to run the environment during # the 'revision' command, regardless of autogenerate # revision_environment = false # set to 'true' to allow .pyc and .pyo files without # a source .py file to be detected as revisions in the # versions/ directory # sourceless = false # version location specification; this defaults # to migration/versions. When using multiple version # directories, initial revisions must be specified with --version-path # version_locations = %(here)s/bar %(here)s/bat migration/versions # the output encoding used when revision files # are written from script.py.mako # output_encoding = utf-8 # sqlalchemy.url = driver://user:pass@localhost/dbname [post_write_hooks] # post_write_hooks defines scripts or Python functions that are run # on newly generated revision scripts. See the documentation for further # detail and examples # format using "black" - use the console_scripts runner, against the "black" entrypoint # hooks = black # black.type = console_scripts # black.entrypoint = black # black.options = -l 79 REVISION_SCRIPT_FILENAME # Logging configuration [loggers] keys = root,sqlalchemy,alembic [handlers] keys = console [formatters] keys = generic [logger_root] level = WARN handlers = console qualname = [logger_sqlalchemy] level = WARN handlers = qualname = sqlalchemy.engine [logger_alembic] level = INFO handlers = qualname = alembic [handler_console] class = StreamHandler args = (sys.stderr,) level = NOTSET formatter = generic [formatter_generic] format = %(levelname)-5.5s [%(name)s] %(message)s datefmt = %H:%M:%S