mirror of
https://git.anonymousland.org/anonymousland/synapse-product.git
synced 2024-10-01 08:25:44 -04:00
Merge branch 'develop' into markjh/v2_sync_api
This commit is contained in:
Mark Haines
commit
f50c43464c
@ -38,6 +38,9 @@ for port in 8080 8081 8082; do
|
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perl -p -i -e 's/^enable_registration:.*/enable_registration: true/g' $DIR/etc/$port.config
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echo "full_twisted_stacktraces: true" >> $DIR/etc/$port.config
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echo "report_stats: false" >> $DIR/etc/$port.config
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python -m synapse.app.homeserver \
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--config-path "$DIR/etc/$port.config" \
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-D \
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@ -33,11 +33,9 @@ if __name__ == '__main__':
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sys.stderr.writelines(message)
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sys.exit(1)
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from synapse.storage.engines import create_engine, IncorrectDatabaseSetup
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from synapse.storage import (
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are_all_users_on_domain, UpgradeDatabaseException,
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)
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from synapse.storage import are_all_users_on_domain
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from synapse.storage.prepare_database import UpgradeDatabaseException
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from synapse.server import HomeServer
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@ -22,6 +22,7 @@ import yaml
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from string import Template
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import os
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import signal
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from synapse.util.debug import debug_deferreds
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DEFAULT_LOG_CONFIG = Template("""
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@ -69,6 +70,8 @@ class LoggingConfig(Config):
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self.verbosity = config.get("verbose", 0)
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self.log_config = self.abspath(config.get("log_config"))
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self.log_file = self.abspath(config.get("log_file"))
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if config.get("full_twisted_stacktraces"):
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debug_deferreds()
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def default_config(self, config_dir_path, server_name, **kwargs):
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log_file = self.abspath("homeserver.log")
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@ -84,6 +87,11 @@ class LoggingConfig(Config):
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# A yaml python logging config file
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log_config: "%(log_config)s"
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# Stop twisted from discarding the stack traces of exceptions in
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# deferreds by waiting a reactor tick before running a deferred's
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# callbacks.
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# full_twisted_stacktraces: true
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""" % locals()
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def read_arguments(self, args):
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@ -42,22 +42,12 @@ from .end_to_end_keys import EndToEndKeyStore
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from .receipts import ReceiptsStore
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import fnmatch
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import imp
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import logging
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import os
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import re
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logger = logging.getLogger(__name__)
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# Remember to update this number every time a change is made to database
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# schema files, so the users will be informed on server restarts.
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SCHEMA_VERSION = 24
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dir_path = os.path.abspath(os.path.dirname(__file__))
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# Number of msec of granularity to store the user IP 'last seen' time. Smaller
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# times give more inserts into the database even for readonly API hits
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# 120 seconds == 2 minutes
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@ -158,371 +148,6 @@ class DataStore(RoomMemberStore, RoomStore,
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)
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def read_schema(path):
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""" Read the named database schema.
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Args:
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path: Path of the database schema.
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Returns:
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A string containing the database schema.
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"""
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with open(path) as schema_file:
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return schema_file.read()
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class PrepareDatabaseException(Exception):
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pass
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class UpgradeDatabaseException(PrepareDatabaseException):
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pass
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def prepare_database(db_conn, database_engine):
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"""Prepares a database for usage. Will either create all necessary tables
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or upgrade from an older schema version.
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"""
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try:
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cur = db_conn.cursor()
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version_info = _get_or_create_schema_state(cur, database_engine)
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if version_info:
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user_version, delta_files, upgraded = version_info
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_upgrade_existing_database(
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cur, user_version, delta_files, upgraded, database_engine
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)
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else:
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_setup_new_database(cur, database_engine)
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# cur.execute("PRAGMA user_version = %d" % (SCHEMA_VERSION,))
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cur.close()
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db_conn.commit()
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except:
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db_conn.rollback()
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raise
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def _setup_new_database(cur, database_engine):
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"""Sets up the database by finding a base set of "full schemas" and then
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applying any necessary deltas.
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The "full_schemas" directory has subdirectories named after versions. This
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function searches for the highest version less than or equal to
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`SCHEMA_VERSION` and executes all .sql files in that directory.
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The function will then apply all deltas for all versions after the base
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version.
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Example directory structure:
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schema/
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delta/
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...
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full_schemas/
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3/
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test.sql
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...
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11/
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foo.sql
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bar.sql
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...
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In the example foo.sql and bar.sql would be run, and then any delta files
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for versions strictly greater than 11.
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"""
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current_dir = os.path.join(dir_path, "schema", "full_schemas")
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directory_entries = os.listdir(current_dir)
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valid_dirs = []
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pattern = re.compile(r"^\d+(\.sql)?$")
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for filename in directory_entries:
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match = pattern.match(filename)
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abs_path = os.path.join(current_dir, filename)
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if match and os.path.isdir(abs_path):
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ver = int(match.group(0))
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if ver <= SCHEMA_VERSION:
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valid_dirs.append((ver, abs_path))
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else:
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logger.warn("Unexpected entry in 'full_schemas': %s", filename)
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if not valid_dirs:
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raise PrepareDatabaseException(
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"Could not find a suitable base set of full schemas"
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)
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max_current_ver, sql_dir = max(valid_dirs, key=lambda x: x[0])
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logger.debug("Initialising schema v%d", max_current_ver)
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directory_entries = os.listdir(sql_dir)
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for filename in fnmatch.filter(directory_entries, "*.sql"):
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sql_loc = os.path.join(sql_dir, filename)
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logger.debug("Applying schema %s", sql_loc)
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executescript(cur, sql_loc)
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cur.execute(
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database_engine.convert_param_style(
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"INSERT INTO schema_version (version, upgraded)"
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" VALUES (?,?)"
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),
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(max_current_ver, False,)
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)
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_upgrade_existing_database(
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cur,
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current_version=max_current_ver,
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applied_delta_files=[],
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upgraded=False,
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database_engine=database_engine,
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)
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def _upgrade_existing_database(cur, current_version, applied_delta_files,
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upgraded, database_engine):
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"""Upgrades an existing database.
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Delta files can either be SQL stored in *.sql files, or python modules
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in *.py.
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There can be multiple delta files per version. Synapse will keep track of
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which delta files have been applied, and will apply any that haven't been
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even if there has been no version bump. This is useful for development
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where orthogonal schema changes may happen on separate branches.
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Different delta files for the same version *must* be orthogonal and give
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the same result when applied in any order. No guarantees are made on the
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order of execution of these scripts.
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This is a no-op of current_version == SCHEMA_VERSION.
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Example directory structure:
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||||
|
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schema/
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delta/
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||||
11/
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||||
foo.sql
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||||
...
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||||
12/
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foo.sql
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bar.py
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...
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full_schemas/
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...
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||||
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In the example, if current_version is 11, then foo.sql will be run if and
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only if `upgraded` is True. Then `foo.sql` and `bar.py` would be run in
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some arbitrary order.
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Args:
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cur (Cursor)
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current_version (int): The current version of the schema.
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applied_delta_files (list): A list of deltas that have already been
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applied.
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upgraded (bool): Whether the current version was generated by having
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applied deltas or from full schema file. If `True` the function
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will never apply delta files for the given `current_version`, since
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the current_version wasn't generated by applying those delta files.
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"""
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if current_version > SCHEMA_VERSION:
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raise ValueError(
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"Cannot use this database as it is too " +
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"new for the server to understand"
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)
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start_ver = current_version
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if not upgraded:
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start_ver += 1
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logger.debug("applied_delta_files: %s", applied_delta_files)
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for v in range(start_ver, SCHEMA_VERSION + 1):
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logger.debug("Upgrading schema to v%d", v)
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delta_dir = os.path.join(dir_path, "schema", "delta", str(v))
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try:
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directory_entries = os.listdir(delta_dir)
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except OSError:
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logger.exception("Could not open delta dir for version %d", v)
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raise UpgradeDatabaseException(
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"Could not open delta dir for version %d" % (v,)
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)
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directory_entries.sort()
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for file_name in directory_entries:
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relative_path = os.path.join(str(v), file_name)
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logger.debug("Found file: %s", relative_path)
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if relative_path in applied_delta_files:
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continue
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absolute_path = os.path.join(
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dir_path, "schema", "delta", relative_path,
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)
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root_name, ext = os.path.splitext(file_name)
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if ext == ".py":
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# This is a python upgrade module. We need to import into some
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# package and then execute its `run_upgrade` function.
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module_name = "synapse.storage.v%d_%s" % (
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v, root_name
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)
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with open(absolute_path) as python_file:
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module = imp.load_source(
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module_name, absolute_path, python_file
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)
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logger.debug("Running script %s", relative_path)
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module.run_upgrade(cur, database_engine)
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elif ext == ".pyc":
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# Sometimes .pyc files turn up anyway even though we've
|
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# disabled their generation; e.g. from distribution package
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# installers. Silently skip it
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pass
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elif ext == ".sql":
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# A plain old .sql file, just read and execute it
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logger.debug("Applying schema %s", relative_path)
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executescript(cur, absolute_path)
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else:
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# Not a valid delta file.
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||||
logger.warn(
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||||
"Found directory entry that did not end in .py or"
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||||
" .sql: %s",
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||||
relative_path,
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||||
)
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||||
continue
|
||||
|
||||
# Mark as done.
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||||
cur.execute(
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||||
database_engine.convert_param_style(
|
||||
"INSERT INTO applied_schema_deltas (version, file)"
|
||||
" VALUES (?,?)",
|
||||
),
|
||||
(v, relative_path)
|
||||
)
|
||||
|
||||
cur.execute("DELETE FROM schema_version")
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||||
cur.execute(
|
||||
database_engine.convert_param_style(
|
||||
"INSERT INTO schema_version (version, upgraded)"
|
||||
" VALUES (?,?)",
|
||||
),
|
||||
(v, True)
|
||||
)
|
||||
|
||||
|
||||
def get_statements(f):
|
||||
statement_buffer = ""
|
||||
in_comment = False # If we're in a /* ... */ style comment
|
||||
|
||||
for line in f:
|
||||
line = line.strip()
|
||||
|
||||
if in_comment:
|
||||
# Check if this line contains an end to the comment
|
||||
comments = line.split("*/", 1)
|
||||
if len(comments) == 1:
|
||||
continue
|
||||
line = comments[1]
|
||||
in_comment = False
|
||||
|
||||
# Remove inline block comments
|
||||
line = re.sub(r"/\*.*\*/", " ", line)
|
||||
|
||||
# Does this line start a comment?
|
||||
comments = line.split("/*", 1)
|
||||
if len(comments) > 1:
|
||||
line = comments[0]
|
||||
in_comment = True
|
||||
|
||||
# Deal with line comments
|
||||
line = line.split("--", 1)[0]
|
||||
line = line.split("//", 1)[0]
|
||||
|
||||
# Find *all* semicolons. We need to treat first and last entry
|
||||
# specially.
|
||||
statements = line.split(";")
|
||||
|
||||
# We must prepend statement_buffer to the first statement
|
||||
first_statement = "%s %s" % (
|
||||
statement_buffer.strip(),
|
||||
statements[0].strip()
|
||||
)
|
||||
statements[0] = first_statement
|
||||
|
||||
# Every entry, except the last, is a full statement
|
||||
for statement in statements[:-1]:
|
||||
yield statement.strip()
|
||||
|
||||
# The last entry did *not* end in a semicolon, so we store it for the
|
||||
# next semicolon we find
|
||||
statement_buffer = statements[-1].strip()
|
||||
|
||||
|
||||
def executescript(txn, schema_path):
|
||||
with open(schema_path, 'r') as f:
|
||||
for statement in get_statements(f):
|
||||
txn.execute(statement)
|
||||
|
||||
|
||||
def _get_or_create_schema_state(txn, database_engine):
|
||||
# Bluntly try creating the schema_version tables.
|
||||
schema_path = os.path.join(
|
||||
dir_path, "schema", "schema_version.sql",
|
||||
)
|
||||
executescript(txn, schema_path)
|
||||
|
||||
txn.execute("SELECT version, upgraded FROM schema_version")
|
||||
row = txn.fetchone()
|
||||
current_version = int(row[0]) if row else None
|
||||
upgraded = bool(row[1]) if row else None
|
||||
|
||||
if current_version:
|
||||
txn.execute(
|
||||
database_engine.convert_param_style(
|
||||
"SELECT file FROM applied_schema_deltas WHERE version >= ?"
|
||||
),
|
||||
(current_version,)
|
||||
)
|
||||
applied_deltas = [d for d, in txn.fetchall()]
|
||||
return current_version, applied_deltas, upgraded
|
||||
|
||||
return None
|
||||
|
||||
|
||||
def prepare_sqlite3_database(db_conn):
|
||||
"""This function should be called before `prepare_database` on sqlite3
|
||||
databases.
|
||||
|
||||
Since we changed the way we store the current schema version and handle
|
||||
updates to schemas, we need a way to upgrade from the old method to the
|
||||
new. This only affects sqlite databases since they were the only ones
|
||||
supported at the time.
|
||||
"""
|
||||
with db_conn:
|
||||
schema_path = os.path.join(
|
||||
dir_path, "schema", "schema_version.sql",
|
||||
)
|
||||
create_schema = read_schema(schema_path)
|
||||
db_conn.executescript(create_schema)
|
||||
|
||||
c = db_conn.execute("SELECT * FROM schema_version")
|
||||
rows = c.fetchall()
|
||||
c.close()
|
||||
|
||||
if not rows:
|
||||
c = db_conn.execute("PRAGMA user_version")
|
||||
row = c.fetchone()
|
||||
c.close()
|
||||
|
||||
if row and row[0]:
|
||||
db_conn.execute(
|
||||
"REPLACE INTO schema_version (version, upgraded)"
|
||||
" VALUES (?,?)",
|
||||
(row[0], False)
|
||||
)
|
||||
|
||||
|
||||
def are_all_users_on_domain(txn, database_engine, domain):
|
||||
sql = database_engine.convert_param_style(
|
||||
"SELECT COUNT(*) FROM users WHERE name NOT LIKE ?"
|
||||
|
||||
@ -13,7 +13,7 @@
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
|
||||
from synapse.storage import prepare_database
|
||||
from synapse.storage.prepare_database import prepare_database
|
||||
|
||||
from ._base import IncorrectDatabaseSetup
|
||||
|
||||
|
||||
@ -13,7 +13,9 @@
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
|
||||
from synapse.storage import prepare_database, prepare_sqlite3_database
|
||||
from synapse.storage.prepare_database import (
|
||||
prepare_database, prepare_sqlite3_database
|
||||
)
|
||||
|
||||
|
||||
class Sqlite3Engine(object):
|
||||
|
||||
395
synapse/storage/prepare_database.py
Normal file
395
synapse/storage/prepare_database.py
Normal file
@ -0,0 +1,395 @@
|
||||
# -*- coding: utf-8 -*-
|
||||
# Copyright 2014, 2015 OpenMarket Ltd
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
|
||||
import fnmatch
|
||||
import imp
|
||||
import logging
|
||||
import os
|
||||
import re
|
||||
|
||||
|
||||
logger = logging.getLogger(__name__)
|
||||
|
||||
|
||||
# Remember to update this number every time a change is made to database
|
||||
# schema files, so the users will be informed on server restarts.
|
||||
SCHEMA_VERSION = 24
|
||||
|
||||
dir_path = os.path.abspath(os.path.dirname(__file__))
|
||||
|
||||
|
||||
def read_schema(path):
|
||||
""" Read the named database schema.
|
||||
|
||||
Args:
|
||||
path: Path of the database schema.
|
||||
Returns:
|
||||
A string containing the database schema.
|
||||
"""
|
||||
with open(path) as schema_file:
|
||||
return schema_file.read()
|
||||
|
||||
|
||||
class PrepareDatabaseException(Exception):
|
||||
pass
|
||||
|
||||
|
||||
class UpgradeDatabaseException(PrepareDatabaseException):
|
||||
pass
|
||||
|
||||
|
||||
def prepare_database(db_conn, database_engine):
|
||||
"""Prepares a database for usage. Will either create all necessary tables
|
||||
or upgrade from an older schema version.
|
||||
"""
|
||||
try:
|
||||
cur = db_conn.cursor()
|
||||
version_info = _get_or_create_schema_state(cur, database_engine)
|
||||
|
||||
if version_info:
|
||||
user_version, delta_files, upgraded = version_info
|
||||
_upgrade_existing_database(
|
||||
cur, user_version, delta_files, upgraded, database_engine
|
||||
)
|
||||
else:
|
||||
_setup_new_database(cur, database_engine)
|
||||
|
||||
# cur.execute("PRAGMA user_version = %d" % (SCHEMA_VERSION,))
|
||||
|
||||
cur.close()
|
||||
db_conn.commit()
|
||||
except:
|
||||
db_conn.rollback()
|
||||
raise
|
||||
|
||||
|
||||
def _setup_new_database(cur, database_engine):
|
||||
"""Sets up the database by finding a base set of "full schemas" and then
|
||||
applying any necessary deltas.
|
||||
|
||||
The "full_schemas" directory has subdirectories named after versions. This
|
||||
function searches for the highest version less than or equal to
|
||||
`SCHEMA_VERSION` and executes all .sql files in that directory.
|
||||
|
||||
The function will then apply all deltas for all versions after the base
|
||||
version.
|
||||
|
||||
Example directory structure:
|
||||
|
||||
schema/
|
||||
delta/
|
||||
...
|
||||
full_schemas/
|
||||
3/
|
||||
test.sql
|
||||
...
|
||||
11/
|
||||
foo.sql
|
||||
bar.sql
|
||||
...
|
||||
|
||||
In the example foo.sql and bar.sql would be run, and then any delta files
|
||||
for versions strictly greater than 11.
|
||||
"""
|
||||
current_dir = os.path.join(dir_path, "schema", "full_schemas")
|
||||
directory_entries = os.listdir(current_dir)
|
||||
|
||||
valid_dirs = []
|
||||
pattern = re.compile(r"^\d+(\.sql)?$")
|
||||
for filename in directory_entries:
|
||||
match = pattern.match(filename)
|
||||
abs_path = os.path.join(current_dir, filename)
|
||||
if match and os.path.isdir(abs_path):
|
||||
ver = int(match.group(0))
|
||||
if ver <= SCHEMA_VERSION:
|
||||
valid_dirs.append((ver, abs_path))
|
||||
else:
|
||||
logger.warn("Unexpected entry in 'full_schemas': %s", filename)
|
||||
|
||||
if not valid_dirs:
|
||||
raise PrepareDatabaseException(
|
||||
"Could not find a suitable base set of full schemas"
|
||||
)
|
||||
|
||||
max_current_ver, sql_dir = max(valid_dirs, key=lambda x: x[0])
|
||||
|
||||
logger.debug("Initialising schema v%d", max_current_ver)
|
||||
|
||||
directory_entries = os.listdir(sql_dir)
|
||||
|
||||
for filename in fnmatch.filter(directory_entries, "*.sql"):
|
||||
sql_loc = os.path.join(sql_dir, filename)
|
||||
logger.debug("Applying schema %s", sql_loc)
|
||||
executescript(cur, sql_loc)
|
||||
|
||||
cur.execute(
|
||||
database_engine.convert_param_style(
|
||||
"INSERT INTO schema_version (version, upgraded)"
|
||||
" VALUES (?,?)"
|
||||
),
|
||||
(max_current_ver, False,)
|
||||
)
|
||||
|
||||
_upgrade_existing_database(
|
||||
cur,
|
||||
current_version=max_current_ver,
|
||||
applied_delta_files=[],
|
||||
upgraded=False,
|
||||
database_engine=database_engine,
|
||||
)
|
||||
|
||||
|
||||
def _upgrade_existing_database(cur, current_version, applied_delta_files,
|
||||
upgraded, database_engine):
|
||||
"""Upgrades an existing database.
|
||||
|
||||
Delta files can either be SQL stored in *.sql files, or python modules
|
||||
in *.py.
|
||||
|
||||
There can be multiple delta files per version. Synapse will keep track of
|
||||
which delta files have been applied, and will apply any that haven't been
|
||||
even if there has been no version bump. This is useful for development
|
||||
where orthogonal schema changes may happen on separate branches.
|
||||
|
||||
Different delta files for the same version *must* be orthogonal and give
|
||||
the same result when applied in any order. No guarantees are made on the
|
||||
order of execution of these scripts.
|
||||
|
||||
This is a no-op of current_version == SCHEMA_VERSION.
|
||||
|
||||
Example directory structure:
|
||||
|
||||
schema/
|
||||
delta/
|
||||
11/
|
||||
foo.sql
|
||||
...
|
||||
12/
|
||||
foo.sql
|
||||
bar.py
|
||||
...
|
||||
full_schemas/
|
||||
...
|
||||
|
||||
In the example, if current_version is 11, then foo.sql will be run if and
|
||||
only if `upgraded` is True. Then `foo.sql` and `bar.py` would be run in
|
||||
some arbitrary order.
|
||||
|
||||
Args:
|
||||
cur (Cursor)
|
||||
current_version (int): The current version of the schema.
|
||||
applied_delta_files (list): A list of deltas that have already been
|
||||
applied.
|
||||
upgraded (bool): Whether the current version was generated by having
|
||||
applied deltas or from full schema file. If `True` the function
|
||||
will never apply delta files for the given `current_version`, since
|
||||
the current_version wasn't generated by applying those delta files.
|
||||
"""
|
||||
|
||||
if current_version > SCHEMA_VERSION:
|
||||
raise ValueError(
|
||||
"Cannot use this database as it is too " +
|
||||
"new for the server to understand"
|
||||
)
|
||||
|
||||
start_ver = current_version
|
||||
if not upgraded:
|
||||
start_ver += 1
|
||||
|
||||
logger.debug("applied_delta_files: %s", applied_delta_files)
|
||||
|
||||
for v in range(start_ver, SCHEMA_VERSION + 1):
|
||||
logger.debug("Upgrading schema to v%d", v)
|
||||
|
||||
delta_dir = os.path.join(dir_path, "schema", "delta", str(v))
|
||||
|
||||
try:
|
||||
directory_entries = os.listdir(delta_dir)
|
||||
except OSError:
|
||||
logger.exception("Could not open delta dir for version %d", v)
|
||||
raise UpgradeDatabaseException(
|
||||
"Could not open delta dir for version %d" % (v,)
|
||||
)
|
||||
|
||||
directory_entries.sort()
|
||||
for file_name in directory_entries:
|
||||
relative_path = os.path.join(str(v), file_name)
|
||||
logger.debug("Found file: %s", relative_path)
|
||||
if relative_path in applied_delta_files:
|
||||
continue
|
||||
|
||||
absolute_path = os.path.join(
|
||||
dir_path, "schema", "delta", relative_path,
|
||||
)
|
||||
root_name, ext = os.path.splitext(file_name)
|
||||
if ext == ".py":
|
||||
# This is a python upgrade module. We need to import into some
|
||||
# package and then execute its `run_upgrade` function.
|
||||
module_name = "synapse.storage.v%d_%s" % (
|
||||
v, root_name
|
||||
)
|
||||
with open(absolute_path) as python_file:
|
||||
module = imp.load_source(
|
||||
module_name, absolute_path, python_file
|
||||
)
|
||||
logger.debug("Running script %s", relative_path)
|
||||
module.run_upgrade(cur, database_engine)
|
||||
elif ext == ".pyc":
|
||||
# Sometimes .pyc files turn up anyway even though we've
|
||||
# disabled their generation; e.g. from distribution package
|
||||
# installers. Silently skip it
|
||||
pass
|
||||
elif ext == ".sql":
|
||||
# A plain old .sql file, just read and execute it
|
||||
logger.debug("Applying schema %s", relative_path)
|
||||
executescript(cur, absolute_path)
|
||||
else:
|
||||
# Not a valid delta file.
|
||||
logger.warn(
|
||||
"Found directory entry that did not end in .py or"
|
||||
" .sql: %s",
|
||||
relative_path,
|
||||
)
|
||||
continue
|
||||
|
||||
# Mark as done.
|
||||
cur.execute(
|
||||
database_engine.convert_param_style(
|
||||
"INSERT INTO applied_schema_deltas (version, file)"
|
||||
" VALUES (?,?)",
|
||||
),
|
||||
(v, relative_path)
|
||||
)
|
||||
|
||||
cur.execute("DELETE FROM schema_version")
|
||||
cur.execute(
|
||||
database_engine.convert_param_style(
|
||||
"INSERT INTO schema_version (version, upgraded)"
|
||||
" VALUES (?,?)",
|
||||
),
|
||||
(v, True)
|
||||
)
|
||||
|
||||
|
||||
def get_statements(f):
|
||||
statement_buffer = ""
|
||||
in_comment = False # If we're in a /* ... */ style comment
|
||||
|
||||
for line in f:
|
||||
line = line.strip()
|
||||
|
||||
if in_comment:
|
||||
# Check if this line contains an end to the comment
|
||||
comments = line.split("*/", 1)
|
||||
if len(comments) == 1:
|
||||
continue
|
||||
line = comments[1]
|
||||
in_comment = False
|
||||
|
||||
# Remove inline block comments
|
||||
line = re.sub(r"/\*.*\*/", " ", line)
|
||||
|
||||
# Does this line start a comment?
|
||||
comments = line.split("/*", 1)
|
||||
if len(comments) > 1:
|
||||
line = comments[0]
|
||||
in_comment = True
|
||||
|
||||
# Deal with line comments
|
||||
line = line.split("--", 1)[0]
|
||||
line = line.split("//", 1)[0]
|
||||
|
||||
# Find *all* semicolons. We need to treat first and last entry
|
||||
# specially.
|
||||
statements = line.split(";")
|
||||
|
||||
# We must prepend statement_buffer to the first statement
|
||||
first_statement = "%s %s" % (
|
||||
statement_buffer.strip(),
|
||||
statements[0].strip()
|
||||
)
|
||||
statements[0] = first_statement
|
||||
|
||||
# Every entry, except the last, is a full statement
|
||||
for statement in statements[:-1]:
|
||||
yield statement.strip()
|
||||
|
||||
# The last entry did *not* end in a semicolon, so we store it for the
|
||||
# next semicolon we find
|
||||
statement_buffer = statements[-1].strip()
|
||||
|
||||
|
||||
def executescript(txn, schema_path):
|
||||
with open(schema_path, 'r') as f:
|
||||
for statement in get_statements(f):
|
||||
txn.execute(statement)
|
||||
|
||||
|
||||
def _get_or_create_schema_state(txn, database_engine):
|
||||
# Bluntly try creating the schema_version tables.
|
||||
schema_path = os.path.join(
|
||||
dir_path, "schema", "schema_version.sql",
|
||||
)
|
||||
executescript(txn, schema_path)
|
||||
|
||||
txn.execute("SELECT version, upgraded FROM schema_version")
|
||||
row = txn.fetchone()
|
||||
current_version = int(row[0]) if row else None
|
||||
upgraded = bool(row[1]) if row else None
|
||||
|
||||
if current_version:
|
||||
txn.execute(
|
||||
database_engine.convert_param_style(
|
||||
"SELECT file FROM applied_schema_deltas WHERE version >= ?"
|
||||
),
|
||||
(current_version,)
|
||||
)
|
||||
applied_deltas = [d for d, in txn.fetchall()]
|
||||
return current_version, applied_deltas, upgraded
|
||||
|
||||
return None
|
||||
|
||||
|
||||
def prepare_sqlite3_database(db_conn):
|
||||
"""This function should be called before `prepare_database` on sqlite3
|
||||
databases.
|
||||
|
||||
Since we changed the way we store the current schema version and handle
|
||||
updates to schemas, we need a way to upgrade from the old method to the
|
||||
new. This only affects sqlite databases since they were the only ones
|
||||
supported at the time.
|
||||
"""
|
||||
with db_conn:
|
||||
schema_path = os.path.join(
|
||||
dir_path, "schema", "schema_version.sql",
|
||||
)
|
||||
create_schema = read_schema(schema_path)
|
||||
db_conn.executescript(create_schema)
|
||||
|
||||
c = db_conn.execute("SELECT * FROM schema_version")
|
||||
rows = c.fetchall()
|
||||
c.close()
|
||||
|
||||
if not rows:
|
||||
c = db_conn.execute("PRAGMA user_version")
|
||||
row = c.fetchone()
|
||||
c.close()
|
||||
|
||||
if row and row[0]:
|
||||
db_conn.execute(
|
||||
"REPLACE INTO schema_version (version, upgraded)"
|
||||
" VALUES (?,?)",
|
||||
(row[0], False)
|
||||
)
|
||||
72
synapse/util/debug.py
Normal file
72
synapse/util/debug.py
Normal file
@ -0,0 +1,72 @@
|
||||
# -*- coding: utf-8 -*-
|
||||
# Copyright 2015 OpenMarket Ltd
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
|
||||
from twisted.internet import defer, reactor
|
||||
from functools import wraps
|
||||
from synapse.util.logcontext import LoggingContext, PreserveLoggingContext
|
||||
|
||||
|
||||
def debug_deferreds():
|
||||
"""Cause all deferreds to wait for a reactor tick before running their
|
||||
callbacks. This increases the chance of getting a stack trace out of
|
||||
a defer.inlineCallback since the code waiting on the deferred will get
|
||||
a chance to add an errback before the deferred runs."""
|
||||
|
||||
# Helper method for retrieving and restoring the current logging context
|
||||
# around a callback.
|
||||
def with_logging_context(fn):
|
||||
context = LoggingContext.current_context()
|
||||
|
||||
def restore_context_callback(x):
|
||||
with PreserveLoggingContext():
|
||||
LoggingContext.thread_local.current_context = context
|
||||
return fn(x)
|
||||
|
||||
return restore_context_callback
|
||||
|
||||
# We are going to modify the __init__ method of defer.Deferred so we
|
||||
# need to get a copy of the old method so we can still call it.
|
||||
old__init__ = defer.Deferred.__init__
|
||||
|
||||
# We need to create a deferred to bounce the callbacks through the reactor
|
||||
# but we don't want to add a callback when we create that deferred so we
|
||||
# we create a new type of deferred that uses the old __init__ method.
|
||||
# This is safe as long as the old __init__ method doesn't invoke an
|
||||
# __init__ using super.
|
||||
class Bouncer(defer.Deferred):
|
||||
__init__ = old__init__
|
||||
|
||||
# We'll add this as a callback to all Deferreds. Twisted will wait until
|
||||
# the bouncer deferred resolves before calling the callbacks of the
|
||||
# original deferred.
|
||||
def bounce_callback(x):
|
||||
bouncer = Bouncer()
|
||||
reactor.callLater(0, with_logging_context(bouncer.callback), x)
|
||||
return bouncer
|
||||
|
||||
# We'll add this as an errback to all Deferreds. Twisted will wait until
|
||||
# the bouncer deferred resolves before calling the errbacks of the
|
||||
# original deferred.
|
||||
def bounce_errback(x):
|
||||
bouncer = Bouncer()
|
||||
reactor.callLater(0, with_logging_context(bouncer.errback), x)
|
||||
return bouncer
|
||||
|
||||
@wraps(old__init__)
|
||||
def new__init__(self, *args, **kargs):
|
||||
old__init__(self, *args, **kargs)
|
||||
self.addCallbacks(bounce_callback, bounce_errback)
|
||||
|
||||
defer.Deferred.__init__ = new__init__
|
||||
@ -16,7 +16,7 @@
|
||||
from synapse.http.server import HttpServer
|
||||
from synapse.api.errors import cs_error, CodeMessageException, StoreError
|
||||
from synapse.api.constants import EventTypes
|
||||
from synapse.storage import prepare_database
|
||||
from synapse.storage.prepare_database import prepare_database
|
||||
from synapse.storage.engines import create_engine
|
||||
from synapse.server import HomeServer
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user