42 lines
1.1 KiB
Python
42 lines
1.1 KiB
Python
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"""Add content_hash to plugin_migrations (F40/Astra).
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The migration runner previously tracked migrations by FILENAME only —
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editing an already-applied migration stayed unnoticed (the #389 bug
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class: a broken migration was fixed, but the runner silently skipped
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it because the filename was already tracked).
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Now every applied migration records the SHA-256 of its SQL content.
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On subsequent runs the runner compares hashes and logs a loud warning
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when an applied migration was modified (repaired) — the skip stays
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idempotent, but drift becomes VISIBLE.
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Revision ID: 0148
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Revises: 0147
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"""
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import sqlalchemy as sa
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from alembic import op
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revision = "0148"
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down_revision = "0147"
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branch_labels = None
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depends_on = None
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def upgrade() -> None:
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op.add_column(
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"plugin_migrations",
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sa.Column("content_hash", sa.String(64), nullable=True),
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)
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op.create_index(
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"ix_plugin_migrations_content_hash",
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"plugin_migrations",
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["content_hash"],
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)
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def downgrade() -> None:
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op.drop_index("ix_plugin_migrations_content_hash", table_name="plugin_migrations")
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op.drop_column("plugin_migrations", "content_hash")
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