Replace the PostgresDatabase skeleton with a real implementation: psycopg (v3) first, psycopg2 second, lazy load, missing driver still raises PostgresDriverMissingError with no silent SQLite fallback. A sqlite3-style adapter (PgConnection/PgCursor/PgRow) translates ? placeholders to %s outside string literals, maps UNIQUE/FK violations, lock errors and connection failures to explicit Postgres error types, and handles INSERT OR REPLACE, PRAGMA table_info, AUTOINCREMENT and FTS5 refusal. POSTGRES_SCHEMA covers all business tables with tasks result columns; server init_db uses it under CLOUD_DB_BACKEND=postgres, SQLite path unchanged. migrate_sqlite_to_postgres.py copies rows with ON CONFLICT DO NOTHING and reseeds identity sequences. Tests: cloud 239 (235 pass, 4 skipped without a real server), host 27 pass; real-server tests skip unless CLOUD_TEST_PG_DSN is set.
38 lines
1.2 KiB
Python
38 lines
1.2 KiB
Python
"""把 SQLite 控制面库迁移到 Postgres 的命令行入口。
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用法(Postgres 连接参数只走 CLOUD_DB_* 环境变量,本脚本
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不接受、不打印任何密码或密钥):
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CLOUD_DB_HOST=... CLOUD_DB_PORT=5432 CLOUD_DB_NAME=... \
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CLOUD_DB_USER=... CLOUD_DB_PASSWORD=... \
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python3 -m cloud.migrate_sqlite_to_postgres --sqlite <sqlite 文件>
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输出:每张表本次插入的行数(第二次跑应全为 0,即幂等,
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不重复插)。驱动缺失时明确报错,绝不静默回落到 SQLite;
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目标库须事先存在(本脚本不建库,建库见 cloud/README.md)。
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"""
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import argparse
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import sys
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from cloud.migrations import migrate_sqlite_to_postgres
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def main(argv=None):
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parser = argparse.ArgumentParser(
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description="Migrate a SQLite control-plane DB to Postgres.")
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parser.add_argument("--sqlite", required=True,
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help="source SQLite file path")
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args = parser.parse_args(argv)
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result = migrate_sqlite_to_postgres(args.sqlite)
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total = 0
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for table, count in result.items():
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print("%s: %d" % (table, count))
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total += count
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print("total inserted: %d" % total)
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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