Move bencoded info dicts from mysql torrent_info table to info_dict directory. DB change!

IMPORTANT!!! Make sure to run utils/infodict_mysql2file.py before upgrading the database.

migrations/versions/b61e4f6a88cc_del_torrents_info.py

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+"""Remove bencoded info dicts from mysql
+
+Revision ID: b61e4f6a88cc
+Revises: 500117641608
+Create Date: 2017-08-29 01:45:08.357936
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import mysql
+import sys
+
+# revision identifiers, used by Alembic.
+revision = 'b61e4f6a88cc'
+down_revision = '500117641608'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    print("--- WARNING ---")
+    print("This migration drops the torrent_info tables.")
+    print("You will lose all of your .torrent files if you have not converted them beforehand.")
+    print("Use the migration script at utils/infodict_mysql2file.py")
+    print("Type OKAY and hit Enter to continue, CTRL-C to abort.")
+    print("--- WARNING ---")
+    try:
+        if input() != "OKAY":
+            sys.exit(1)
+    except KeyboardInterrupt:
+        sys.exit(1)
+
+    op.drop_table('sukebei_torrents_info')
+    op.drop_table('nyaa_torrents_info')
+
+
+def downgrade():
+    op.create_table('nyaa_torrents_info',
+    sa.Column('info_dict', mysql.MEDIUMBLOB(), nullable=True),
+    sa.Column('torrent_id', mysql.INTEGER(display_width=11), autoincrement=False, nullable=False),
+    sa.ForeignKeyConstraint(['torrent_id'], ['nyaa_torrents.id'], name='nyaa_torrents_info_ibfk_1', ondelete='CASCADE'),
+    sa.PrimaryKeyConstraint('torrent_id'),
+    mysql_collate='utf8_bin',
+    mysql_default_charset='utf8',
+    mysql_engine='InnoDB',
+    mysql_row_format='COMPRESSED'
+    )
+    op.create_table('sukebei_torrents_info',
+    sa.Column('info_dict', mysql.MEDIUMBLOB(), nullable=True),
+    sa.Column('torrent_id', mysql.INTEGER(display_width=11), autoincrement=False, nullable=False),
+    sa.ForeignKeyConstraint(['torrent_id'], ['sukebei_torrents.id'], name='sukebei_torrents_info_ibfk_1', ondelete='CASCADE'),
+    sa.PrimaryKeyConstraint('torrent_id'),
+    mysql_collate='utf8_bin',
+    mysql_default_charset='utf8',
+    mysql_engine='InnoDB',
+    mysql_row_format='COMPRESSED'
+    )