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Allow schema deltas to be engine-specific

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Signed-off-by: Olivier Wilkinson (reivilibre) <olivier@librepush.net>
This commit is contained in:
Olivier Wilkinson (reivilibre) 2019-08-27 08:52:20 +01:00
parent 8767b63a82
commit aefa76f5cd
1 changed files with 21 additions and 5 deletions
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26
synapse/storage/prepare_database.py
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@ -238,6 +238,15 @@ def _upgrade_existing_database(
logger.debug("applied_delta_files: %s", applied_delta_files)
if isinstance(database_engine, PostgresEngine):
specific_engine_extension = ".postgres"
else:
specific_engine_extension = ".sqlite"
specific_engine_extensions = (
".sqlite", ".postgres"
)
for v in range(start_ver, SCHEMA_VERSION + 1):
logger.info("Upgrading schema to v%d", v)
@ -274,15 +283,22 @@ def _upgrade_existing_database(
# Sometimes .pyc files turn up anyway even though we've
# disabled their generation; e.g. from distribution package
# installers. Silently skip it
pass
continue
elif ext == ".sql":
# A plain old .sql file, just read and execute it
logger.info("Applying schema %s", relative_path)
executescript(cur, absolute_path)
elif ext == specific_engine_extension and root_name.endswith(".sql"):
# A .sql file specific to our engine; just read and execute it
logger.info("Applying engine-specific schema %s", relative_path)
executescript(cur, absolute_path)
elif ext in specific_engine_extensions and root_name.endswith(".sql"):
# A .sql file for a different engine; skip it.
continue
else:
# Not a valid delta file.
logger.warn(
"Found directory entry that did not end in .py or" " .sql: %s",
logger.warning(
"Found directory entry that did not end in .py or .sql: %s",
relative_path,
)
continue
@ -290,7 +306,7 @@ def _upgrade_existing_database(
# Mark as done.
cur.execute(
database_engine.convert_param_style(
"INSERT INTO applied_schema_deltas (version, file)" " VALUES (?,?)"
"INSERT INTO applied_schema_deltas (version, file) VALUES (?,?)"
),
(v, relative_path),
)
@ -298,7 +314,7 @@ def _upgrade_existing_database(
cur.execute("DELETE FROM schema_version")
cur.execute(
database_engine.convert_param_style(
"INSERT INTO schema_version (version, upgraded)" " VALUES (?,?)"
"INSERT INTO schema_version (version, upgraded) VALUES (?,?)"
),
(v, True),
)