lbry-sdk/lbrynet/db_migrator/migrate0to1.py

# import sqlite3
# import unqlite
# import leveldb
# import shutil
# import os
# import logging
# import json
#
#
# log = logging.getLogger(__name__)
#
#
# known_dbs = ['lbryfile_desc.db', 'lbryfiles.db', 'valuable_blobs.db', 'blobs.db',
#              'lbryfile_blob.db', 'lbryfile_info.db', 'settings.db', 'blind_settings.db',
#              'blind_peers.db', 'blind_info.db', 'lbryfile_info.db', 'lbryfile_manager.db',
#              'live_stream.db', 'stream_info.db', 'stream_blob.db', 'stream_desc.db']
#
#
# def do_move(from_dir, to_dir):
#     for known_db in known_dbs:
#         known_db_path = os.path.join(from_dir, known_db)
#         if os.path.exists(known_db_path):
#             log.debug("Moving %s to %s",
#                       os.path.abspath(known_db_path),
#                       os.path.abspath(os.path.join(to_dir, known_db)))
#             shutil.move(known_db_path, os.path.join(to_dir, known_db))
#         else:
#             log.debug("Did not find %s", os.path.abspath(known_db_path))
#
#
# def do_migration(db_dir):
#     old_dir = os.path.join(db_dir, "_0_to_1_old")
#     new_dir = os.path.join(db_dir, "_0_to_1_new")
#     try:
#         log.info("Moving dbs from the real directory to %s", os.path.abspath(old_dir))
#         os.makedirs(old_dir)
#         do_move(db_dir, old_dir)
#     except:
#         log.error("An error occurred moving the old db files.")
#         raise
#     try:
#         log.info("Creating the new directory in %s", os.path.abspath(new_dir))
#         os.makedirs(new_dir)
#
#     except:
#         log.error("An error occurred creating the new directory.")
#         raise
#     try:
#         log.info("Doing the migration")
#         migrate_blob_db(old_dir, new_dir)
#         migrate_lbryfile_db(old_dir, new_dir)
#         migrate_livestream_db(old_dir, new_dir)
#         migrate_ptc_db(old_dir, new_dir)
#         migrate_lbryfile_manager_db(old_dir, new_dir)
#         migrate_settings_db(old_dir, new_dir)
#         migrate_repeater_db(old_dir, new_dir)
#         log.info("Migration succeeded")
#     except:
#         log.error("An error occurred during the migration. Restoring.")
#         do_move(old_dir, db_dir)
#         raise
#     try:
#         log.info("Moving dbs in the new directory to the real directory")
#         do_move(new_dir, db_dir)
#         db_revision = open(os.path.join(db_dir, 'db_revision'), mode='w+')
#         db_revision.write("1")
#         db_revision.close()
#         os.rmdir(new_dir)
#     except:
#         log.error("An error occurred moving the new db files.")
#         raise
#     return old_dir
#
#
# def migrate_blob_db(old_db_dir, new_db_dir):
#     old_blob_db_path = os.path.join(old_db_dir, "blobs.db")
#     if not os.path.exists(old_blob_db_path):
#         return True
#
#     old_db = leveldb.LevelDB(old_blob_db_path)
#     new_db_conn = sqlite3.connect(os.path.join(new_db_dir, "blobs.db"))
#     c = new_db_conn.cursor()
#     c.execute("create table if not exists blobs (" +
#               "    blob_hash text primary key, " +
#               "    blob_length integer, " +
#               "    last_verified_time real, " +
#               "    next_announce_time real"
#               ")")
#     new_db_conn.commit()
#     c = new_db_conn.cursor()
#     for blob_hash, blob_info in old_db.RangeIter():
#         blob_length, verified_time, announce_time = json.loads(blob_info)
#         c.execute("insert into blobs values (?, ?, ?, ?)",
#                   (blob_hash, blob_length, verified_time, announce_time))
#     new_db_conn.commit()
#     new_db_conn.close()
#
#
# def migrate_lbryfile_db(old_db_dir, new_db_dir):
#     old_lbryfile_db_path = os.path.join(old_db_dir, "lbryfiles.db")
#     if not os.path.exists(old_lbryfile_db_path):
#         return True
#
#     stream_info_db = leveldb.LevelDB(os.path.join(old_db_dir, "lbryfile_info.db"))
#     stream_blob_db = leveldb.LevelDB(os.path.join(old_db_dir, "lbryfile_blob.db"))
#     stream_desc_db = leveldb.LevelDB(os.path.join(old_db_dir, "lbryfile_desc.db"))
#
#     db_conn = sqlite3.connect(os.path.join(new_db_dir, "lbryfile_info.db"))
#     c = db_conn.cursor()
#     c.execute("create table if not exists lbry_files (" +
#               "    stream_hash text primary key, " +
#               "    key text, " +
#               "    stream_name text, " +
#               "    suggested_file_name text" +
#               ")")
#     c.execute("create table if not exists lbry_file_blobs (" +
#               "    blob_hash text, " +
#               "    stream_hash text, " +
#               "    position integer, " +
#               "    iv text, " +
#               "    length integer, " +
#               "    foreign key(stream_hash) references lbry_files(stream_hash)" +
#               ")")
#     c.execute("create table if not exists lbry_file_descriptors (" +
#               "    sd_blob_hash TEXT PRIMARY KEY, " +
#               "    stream_hash TEXT, " +
#               "    foreign key(stream_hash) references lbry_files(stream_hash)" +
#               ")")
#     db_conn.commit()
#     c = db_conn.cursor()
#     for stream_hash, stream_info in stream_info_db.RangeIter():
#         key, name, suggested_file_name = json.loads(stream_info)
#         c.execute("insert into lbry_files values (?, ?, ?, ?)",
#                   (stream_hash, key, name, suggested_file_name))
#     db_conn.commit()
#     c = db_conn.cursor()
#     for blob_hash_stream_hash, blob_info in stream_blob_db.RangeIter():
#         b_h, s_h = json.loads(blob_hash_stream_hash)
#         position, iv, length = json.loads(blob_info)
#         c.execute("insert into lbry_file_blobs values (?, ?, ?, ?, ?)",
#                   (b_h, s_h, position, iv, length))
#     db_conn.commit()
#     c = db_conn.cursor()
#     for sd_blob_hash, stream_hash in stream_desc_db.RangeIter():
#         c.execute("insert into lbry_file_descriptors values (?, ?)",
#                   (sd_blob_hash, stream_hash))
#     db_conn.commit()
#     db_conn.close()
#
#
# def migrate_livestream_db(old_db_dir, new_db_dir):
#     old_db_path = os.path.join(old_db_dir, "stream_info.db")
#     if not os.path.exists(old_db_path):
#         return True
#     stream_info_db = leveldb.LevelDB(os.path.join(old_db_dir, "stream_info.db"))
#     stream_blob_db = leveldb.LevelDB(os.path.join(old_db_dir, "stream_blob.db"))
#     stream_desc_db = leveldb.LevelDB(os.path.join(old_db_dir, "stream_desc.db"))
#
#     db_conn = sqlite3.connect(os.path.join(new_db_dir, "live_stream.db"))
#
#     c = db_conn.cursor()
#
#     c.execute("create table if not exists live_streams (" +
#               "    stream_hash text primary key, " +
#               "    public_key text, " +
#               "    key text, " +
#               "    stream_name text, " +
#               "    next_announce_time real" +
#               ")")
#     c.execute("create table if not exists live_stream_blobs (" +
#               "    blob_hash text, " +
#               "    stream_hash text, " +
#               "    position integer, " +
#               "    revision integer, " +
#               "    iv text, " +
#               "    length integer, " +
#               "    signature text, " +
#               "    foreign key(stream_hash) references live_streams(stream_hash)" +
#               ")")
#     c.execute("create table if not exists live_stream_descriptors (" +
#               "    sd_blob_hash TEXT PRIMARY KEY, " +
#               "    stream_hash TEXT, " +
#               "    foreign key(stream_hash) references live_streams(stream_hash)" +
#               ")")
#
#     db_conn.commit()
#
#     c = db_conn.cursor()
#     for stream_hash, stream_info in stream_info_db.RangeIter():
#         public_key, key, name, next_announce_time = json.loads(stream_info)
#         c.execute("insert into live_streams values (?, ?, ?, ?, ?)",
#                   (stream_hash, public_key, key, name, next_announce_time))
#     db_conn.commit()
#     c = db_conn.cursor()
#     for blob_hash_stream_hash, blob_info in stream_blob_db.RangeIter():
#         b_h, s_h = json.loads(blob_hash_stream_hash)
#         position, revision, iv, length, signature = json.loads(blob_info)
#         c.execute("insert into live_stream_blobs values (?, ?, ?, ?, ?, ?, ?)",
#                   (b_h, s_h, position, revision, iv, length, signature))
#     db_conn.commit()
#     c = db_conn.cursor()
#     for sd_blob_hash, stream_hash in stream_desc_db.RangeIter():
#         c.execute("insert into live_stream_descriptors values (?, ?)",
#                   (sd_blob_hash, stream_hash))
#     db_conn.commit()
#     db_conn.close()
#
#
# def migrate_ptc_db(old_db_dir, new_db_dir):
#     old_db_path = os.path.join(old_db_dir, "ptcwallet.db")
#     if not os.path.exists(old_db_path):
#         return True
#     old_db = leveldb.LevelDB(old_db_path)
#     try:
#         p_key = old_db.Get("private_key")
#         new_db = unqlite.UnQLite(os.path.join(new_db_dir, "ptcwallet.db"))
#         new_db['private_key'] = p_key
#     except KeyError:
#         pass
#
#
# def migrate_lbryfile_manager_db(old_db_dir, new_db_dir):
#     old_db_path = os.path.join(old_db_dir, "lbryfiles.db")
#     if not os.path.exists(old_db_path):
#         return True
#     old_db = leveldb.LevelDB(old_db_path)
#     new_db = sqlite3.connect(os.path.join(new_db_dir, "lbryfile_info.db"))
#     c = new_db.cursor()
#     c.execute("create table if not exists lbry_file_options (" +
#               "    blob_data_rate real, " +
#               "    status text," +
#               "    stream_hash text,"
#               "    foreign key(stream_hash) references lbry_files(stream_hash)" +
#               ")")
#     new_db.commit()
#     FILE_STATUS = "t"
#     FILE_OPTIONS = "o"
#     c = new_db.cursor()
#     for k, v in old_db.RangeIter():
#         key_type, stream_hash = json.loads(k)
#         if key_type == FILE_STATUS:
#             try:
#                 rate = json.loads(old_db.Get(json.dumps((FILE_OPTIONS, stream_hash))))[0]
#             except KeyError:
#                 rate = None
#             c.execute("insert into lbry_file_options values (?, ?, ?)",
#                       (rate, v, stream_hash))
#     new_db.commit()
#     new_db.close()
#
#
# def migrate_settings_db(old_db_dir, new_db_dir):
#     old_settings_db_path = os.path.join(old_db_dir, "settings.db")
#     if not os.path.exists(old_settings_db_path):
#         return True
#     old_db = leveldb.LevelDB(old_settings_db_path)
#     new_db = unqlite.UnQLite(os.path.join(new_db_dir, "settings.db"))
#     for k, v in old_db.RangeIter():
#         new_db[k] = v
#
#
# def migrate_repeater_db(old_db_dir, new_db_dir):
#     old_repeater_db_path = os.path.join(old_db_dir, "valuable_blobs.db")
#     if not os.path.exists(old_repeater_db_path):
#         return True
#     old_db = leveldb.LevelDB(old_repeater_db_path)
#     info_db = sqlite3.connect(os.path.join(new_db_dir, "blind_info.db"))
#     peer_db = sqlite3.connect(os.path.join(new_db_dir, "blind_peers.db"))
#     unql_db = unqlite.UnQLite(os.path.join(new_db_dir, "blind_settings.db"))
#     BLOB_INFO_TYPE = 'b'
#     SETTING_TYPE = 's'
#     PEER_TYPE = 'p'
#     info_c = info_db.cursor()
#     info_c.execute("create table if not exists valuable_blobs (" +
#                    "    blob_hash text primary key, " +
#                    "    blob_length integer, " +
#                    "    reference text, " +
#                    "    peer_host text, " +
#                    "    peer_port integer, " +
#                    "    peer_score text" +
#                    ")")
#     info_db.commit()
#     peer_c = peer_db.cursor()
#     peer_c.execute("create table if not exists approved_peers (" +
#                    "    ip_address text, " +
#                    "    port integer" +
#                    ")")
#     peer_db.commit()
#     info_c = info_db.cursor()
#     peer_c = peer_db.cursor()
#     for k, v in old_db.RangeIter():
#         key_type, key_rest = json.loads(k)
#         if key_type == PEER_TYPE:
#             host, port = key_rest
#             peer_c.execute("insert into approved_peers values (?, ?)",
#                            (host, port))
#         elif key_type == SETTING_TYPE:
#             unql_db[key_rest] = v
#         elif key_type == BLOB_INFO_TYPE:
#             blob_hash = key_rest
#             length, reference, peer_host, peer_port, peer_score = json.loads(v)
#             info_c.execute("insert into valuable_blobs values (?, ?, ?, ?, ?, ?)",
#                            (blob_hash, length, reference, peer_host, peer_port, peer_score))
#     info_db.commit()
#     peer_db.commit()
#     info_db.close()
#     peer_db.close()