[pkg] improve naming of directory of migration script

1 files changed, 0 insertions, 221 deletions

diff --git a/scripts/migration/0.9.0/migrate_couch_schema/__init__.py b/scripts/migration/0.9.0/migrate_couch_schema/__init__.py
deleted file mode 100644
index 1e51eccd..00000000
--- a/scripts/migration/0.9.0/migrate_couch_schema/__init__.py
+++ /dev/null
@@ -1,221 +0,0 @@
-# __init__.py
-"""
-Support functions for migration script.
-"""
-
-import logging
-
-from couchdb import Server
-from couchdb import ResourceNotFound
-from couchdb import ResourceConflict
-
-from leap.soledad.common.couch import GENERATION_KEY
-from leap.soledad.common.couch import TRANSACTION_ID_KEY
-from leap.soledad.common.couch import REPLICA_UID_KEY
-from leap.soledad.common.couch import DOC_ID_KEY
-from leap.soledad.common.couch import SCHEMA_VERSION_KEY
-from leap.soledad.common.couch import CONFIG_DOC_ID
-from leap.soledad.common.couch import SYNC_DOC_ID_PREFIX
-from leap.soledad.common.couch import SCHEMA_VERSION
-
-
-logger = logging.getLogger(__name__)
-
-
-#
-# support functions
-#
-
-def _get_couch_server(couch_url):
-    return Server(couch_url)
-
-
-def _has_u1db_config_doc(db):
-    config_doc = db.get('u1db_config')
-    return bool(config_doc)
-
-
-def _get_transaction_log(db):
-    ddoc_path = ['_design', 'transactions', '_view', 'log']
-    resource = db.resource(*ddoc_path)
-    try:
-        _, _, data = resource.get_json()
-    except ResourceNotFound:
-        logger.warning(
-            '[%s] missing transactions design document, '
-            'can\'t get transaction log.' % db.name)
-        return []
-    rows = data['rows']
-    transaction_log = []
-    gen = 1
-    for row in rows:
-        transaction_log.append((gen, row['id'], row['value']))
-        gen += 1
-    return transaction_log
-
-
-def _get_user_dbs(server):
-    user_dbs = filter(lambda dbname: dbname.startswith('user-'), server)
-    return user_dbs
-
-
-#
-# migration main functions
-#
-
-def _report_missing_u1db_config_doc(dbname, db):
-    config_doc = db.get(CONFIG_DOC_ID)
-    if not config_doc:
-        logger.warning(
-            "[%s] no '%s' or '%s' documents found, possibly an empty db? I "
-            "don't know what to do with this db, so I am skipping it."
-            % (dbname, 'u1db_config', CONFIG_DOC_ID))
-    else:
-        if SCHEMA_VERSION_KEY in config_doc:
-            version = config_doc[SCHEMA_VERSION_KEY]
-            if version == SCHEMA_VERSION:
-                logger.info(
-                    "[%s] '%s' document exists, and schema versions match "
-                    "(expected %r and found %r). This database reports to be "
-                    "using the new schema version, so I am skipping it."
-                    % (dbname, CONFIG_DOC_ID, SCHEMA_VERSION, version))
-            else:
-                logger.error(
-                    "[%s] '%s' document exists, but schema versions don't "
-                    "match (expected %r, found %r instead). I don't know "
-                    "how to migrate such a db, so I am skipping it."
-                    % (dbname, CONFIG_DOC_ID, SCHEMA_VERSION, version))
-        else:
-            logger.error(
-                "[%s] '%s' document exists, but has no schema version "
-                "information in it. I don't know how to migrate such a db, "
-                "so I am skipping it." % (dbname, CONFIG_DOC_ID))
-
-
-def migrate(args, target_version):
-    server = _get_couch_server(args.couch_url)
-    logger.info('starting couch schema migration to %s' % target_version)
-    if not args.do_migrate:
-        logger.warning('dry-run: no changes will be made to databases')
-    user_dbs = _get_user_dbs(server)
-    for dbname in user_dbs:
-        db = server[dbname]
-        if not _has_u1db_config_doc(db):
-            _report_missing_u1db_config_doc(dbname, db)
-            continue
-        logger.info("[%s] starting migration of user db" % dbname)
-        try:
-            _migrate_user_db(db, args.do_migrate)
-            logger.info("[%s] finished migration of user db" % dbname)
-        except:
-            logger.exception('[%s] error migrating user db' % dbname)
-            logger.error('continuing with next database.')
-    logger.info('finished couch schema migration to %s' % target_version)
-
-
-def _migrate_user_db(db, do_migrate):
-    _migrate_transaction_log(db, do_migrate)
-    _migrate_sync_docs(db, do_migrate)
-    _delete_design_docs(db, do_migrate)
-    _migrate_config_doc(db, do_migrate)
-
-
-def _migrate_transaction_log(db, do_migrate):
-    transaction_log = _get_transaction_log(db)
-    for gen, doc_id, trans_id in transaction_log:
-        gen_doc_id = 'gen-%s' % str(gen).zfill(10)
-        doc = {
-            '_id': gen_doc_id,
-            GENERATION_KEY: gen,
-            DOC_ID_KEY: doc_id,
-            TRANSACTION_ID_KEY: trans_id,
-        }
-        logger.debug('[%s] creating gen doc: %s' % (db.name, gen_doc_id))
-        if do_migrate:
-            try:
-                db.save(doc)
-            except ResourceConflict:
-                # this gen document already exists. if documents are the same,
-                # continue with migration.
-                existing_doc = db.get(gen_doc_id)
-                for key in [GENERATION_KEY, DOC_ID_KEY, TRANSACTION_ID_KEY]:
-                    if existing_doc[key] != doc[key]:
-                        raise
-
-
-def _migrate_config_doc(db, do_migrate):
-    old_doc = db['u1db_config']
-    new_doc = {
-        '_id': CONFIG_DOC_ID,
-        REPLICA_UID_KEY: old_doc[REPLICA_UID_KEY],
-        SCHEMA_VERSION_KEY: SCHEMA_VERSION,
-    }
-    logger.info("[%s] moving config doc: %s -> %s"
-                % (db.name, old_doc['_id'], new_doc['_id']))
-    if do_migrate:
-        # the config doc must not exist, otherwise we would have skipped this
-        # database.
-        db.save(new_doc)
-        db.delete(old_doc)
-
-
-def _migrate_sync_docs(db, do_migrate):
-    logger.info('[%s] moving sync docs' % db.name)
-    view = db.view(
-        '_all_docs',
-        startkey='u1db_sync',
-        endkey='u1db_synd',
-        include_docs='true')
-    for row in view.rows:
-        old_doc = row['doc']
-        old_id = old_doc['_id']
-
-        # older schemas used different documents with ids starting with
-        # "u1db_sync" to store sync-related data:
-        #
-        #   - u1db_sync_log: was used to store the whole sync log.
-        #   - u1db_sync_state: was used to store the sync state.
-        #
-        # if any of these documents exist in the current db, they are leftover
-        # from previous migrations, and should just be removed.
-        if old_id in ['u1db_sync_log', 'u1db_sync_state']:
-            logger.info('[%s] removing leftover document: %s'
-                        % (db.name, old_id))
-            if do_migrate:
-                db.delete(old_doc)
-            continue
-
-        replica_uid = old_id.replace('u1db_sync_', '')
-        new_id = "%s%s" % (SYNC_DOC_ID_PREFIX, replica_uid)
-        new_doc = {
-            '_id': new_id,
-            GENERATION_KEY: old_doc['generation'],
-            TRANSACTION_ID_KEY: old_doc['transaction_id'],
-            REPLICA_UID_KEY: replica_uid,
-        }
-        logger.debug("[%s] moving sync doc: %s -> %s"
-                     % (db.name, old_id, new_id))
-        if do_migrate:
-            try:
-                db.save(new_doc)
-            except ResourceConflict:
-                # this sync document already exists. if documents are the same,
-                # continue with migration.
-                existing_doc = db.get(new_id)
-                for key in [GENERATION_KEY, TRANSACTION_ID_KEY,
-                            REPLICA_UID_KEY]:
-                    if existing_doc[key] != new_doc[key]:
-                        raise
-            db.delete(old_doc)
-
-
-def _delete_design_docs(db, do_migrate):
-    for ddoc in ['docs', 'syncs', 'transactions']:
-        doc_id = '_design/%s' % ddoc
-        doc = db.get(doc_id)
-        if doc:
-            logger.info("[%s] deleting design doc: %s" % (db.name, doc_id))
-            if do_migrate:
-                db.delete(doc)
-        else:
-            logger.warning("[%s] design doc not found: %s" % (db.name, doc_id))