Implement chainlib basedir override

chainsyncer/db/migrations/default/README

@@ -0,0 +1 @@
+Generic single-database configuration.

chainsyncer/db/migrations/default/alembic.ini

@@ -0,0 +1,85 @@
+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = .
+
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# timezone to use when rendering the date
+# within the migration file as well as the filename.
+# string value is passed to dateutil.tz.gettz()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the
+# "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; this defaults
+# to ./versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path
+# version_locations = %(here)s/bar %(here)s/bat ./versions
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+sqlalchemy.url = driver://user:pass@localhost/dbname
+
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts.  See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+# hooks=black
+# black.type=console_scripts
+# black.entrypoint=black
+# black.options=-l 79
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+#level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

chainsyncer/db/migrations/default/env.py

@@ -0,0 +1,77 @@
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+target_metadata = None
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline():
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online():
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection, target_metadata=target_metadata
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

chainsyncer/db/migrations/default/export.py

@@ -0,0 +1,37 @@
+from alembic import op
+import sqlalchemy as sa
+
+from chainsyncer.db.migrations.default.versions.src.sync import (
+    upgrade as upgrade_sync,
+    downgrade as downgrade_sync,
+)
+
+from chainsyncer.db.migrations.default.versions.src.sync_tx import (
+    upgrade as upgrade_sync_tx,
+    downgrade as downgrade_sync_tx,
+)
+
+def chainsyncer_upgrade(major=0, minor=0, patch=3):
+    r0_0_1_u()
+    if patch >= 3:
+        r0_0_3_u()
+
+def chainsyncer_downgrade(major=0, minor=0, patch=3):
+    if patch >= 3:
+        r0_0_3_d()
+    r0_0_1_d()
+
+def r0_0_1_u():
+    upgrade_sync()
+
+def r0_0_1_d():
+    downgrade_sync()
+
+
+# 0.0.3
+
+def r0_0_3_u():
+    upgrade_sync_tx()
+ 
+def r0_0_3_d():
+    downgrade_sync_tx()

chainsyncer/db/migrations/default/script.py.mako

@@ -0,0 +1,24 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}

chainsyncer/db/migrations/default/versions/452ecfa81de3_base_setup.py

@@ -0,0 +1,14 @@
+"""base setup
+
+Revision ID: 452ecfa81de3
+Revises: 
+Create Date: 2021-07-16 16:29:32.460027
+
+"""
+# revision identifiers, used by Alembic.
+revision = '452ecfa81de3'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+from chainsyncer.db.migrations.default.versions.src.sync import upgrade, downgrade

chainsyncer/db/migrations/default/versions/a2ce6826c5eb_sync_tx.py

@@ -0,0 +1,14 @@
+"""sync-tx
+
+Revision ID: a2ce6826c5eb
+Revises: 452ecfa81de3
+Create Date: 2021-07-16 18:17:53.439721
+
+"""
+# revision identifiers, used by Alembic.
+revision = 'a2ce6826c5eb'
+down_revision = '452ecfa81de3'
+branch_labels = None
+depends_on = None
+
+from chainsyncer.db.migrations.default.versions.src.sync_tx import upgrade, downgrade

chainsyncer/db/migrations/default/versions/src/sync.py

@@ -0,0 +1,32 @@
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    op.create_table(
+            'chain_sync',
+            sa.Column('id', sa.Integer, primary_key=True),
+            sa.Column('blockchain', sa.String, nullable=False),
+            sa.Column('block_start', sa.Integer, nullable=False, default=0),
+            sa.Column('tx_start', sa.Integer, nullable=False, default=0),
+            sa.Column('block_cursor', sa.Integer, nullable=False, default=0),
+            sa.Column('tx_cursor', sa.Integer, nullable=False, default=0),
+            sa.Column('block_target', sa.Integer, nullable=True),
+            sa.Column('date_created', sa.DateTime, nullable=False),
+            sa.Column('date_updated', sa.DateTime),
+            )
+
+    op.create_table(
+            'chain_sync_filter',
+            sa.Column('id', sa.Integer, primary_key=True),
+            sa.Column('chain_sync_id', sa.Integer, sa.ForeignKey('chain_sync.id'), nullable=True),
+            sa.Column('flags', sa.LargeBinary, nullable=True),
+            sa.Column('flags_start', sa.LargeBinary, nullable=True),
+            sa.Column('count', sa.Integer, nullable=False, default=0),
+            sa.Column('digest', sa.String(64), nullable=False),
+            )
+
+
+def downgrade():
+    op.drop_table('chain_sync_filter')
+    op.drop_table('chain_sync')

chainsyncer/db/migrations/default/versions/src/sync_tx.py

@@ -0,0 +1,17 @@
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    op.create_table(
+            'chain_sync_tx',
+            sa.Column('id', sa.Integer, primary_key=True),
+            sa.Column('blockchain', sa.String, nullable=False),
+            sa.Column('chain_sync_id', sa.Integer, sa.ForeignKey('chain_sync.id'), nullable=False),
+            sa.Column('flags', sa.LargeBinary, nullable=True),
+            sa.Column('block', sa.Integer, nullable=False),
+            sa.Column('tx', sa.Integer, nullable=False),
+            )
+
+def downgrade():
+    op.drop_table('chain_sync_tx')

chainsyncer/db/migrations/sqlalchemy.py

@@ -1,36 +1,37 @@
 from alembic import op
 import sqlalchemy as sa
 
-def chainsyncer_upgrade(major=0, minor=0, patch=1):
-    r0_0_1_u()
+from chainsyncer.db.migrations.default.versions.tags.sync import
+    upgrade as upgrade_sync,
+    downgrade as downgrade_sync,
+)
 
-def chainsyncer_downgrade(major=0, minor=0, patch=1):
+from chainsyncer.db.migrations.default.versions.tags.sync_tx import
+    upgrade as upgrade_sync_tx,
+    downgrade as downgrade_sync_tx,
+)
+
+def chainsyncer_upgrade(major=0, minor=0, patch=3):
+    r0_0_1_u()
+    if patch >= 3:
+        r0_0_3_u()
+
+def chainsyncer_downgrade(major=0, minor=0, patch=3):
+    if patch >= 3:
+        r0_0_3_d()
     r0_0_1_d()
 
 def r0_0_1_u():
-    op.create_table(
-            'chain_sync',
-            sa.Column('id', sa.Integer, primary_key=True),
-            sa.Column('blockchain', sa.String, nullable=False),
-            sa.Column('block_start', sa.Integer, nullable=False, default=0),
-            sa.Column('tx_start', sa.Integer, nullable=False, default=0),
-            sa.Column('block_cursor', sa.Integer, nullable=False, default=0),
-            sa.Column('tx_cursor', sa.Integer, nullable=False, default=0),
-            sa.Column('block_target', sa.Integer, nullable=True),
-            sa.Column('date_created', sa.DateTime, nullable=False),
-            sa.Column('date_updated', sa.DateTime),
-            )
-
-    op.create_table(
-            'chain_sync_filter',
-            sa.Column('id', sa.Integer, primary_key=True),
-            sa.Column('chain_sync_id', sa.Integer, sa.ForeignKey('chain_sync.id'), nullable=True),
-            sa.Column('flags', sa.LargeBinary, nullable=True),
-            sa.Column('flags_start', sa.LargeBinary, nullable=True),
-            sa.Column('count', sa.Integer, nullable=False, default=0),
-            sa.Column('digest', sa.String(64), nullable=False),
-            )
+    upgrade_sync()
 
 def r0_0_1_d():
-    op.drop_table('chain_sync_filter')
-    op.drop_table('chain_sync')
+    downgrade_sync()
+
+
+# 0.0.3
+
+def r0_0_3_u():
+    upgrade_sync_tx()
+ 
+def r0_0_3_d():
+    downgrade_sync_tx()

chainsyncer/db/models/base.py

@@ -120,3 +120,4 @@ class SessionBase(Model):
             logg.debug('destroying session {}'.format(session_key))
             session.commit()
             session.close()
+            del SessionBase.localsessions[session_key]