src/alpine_bits_python/util/fix_postgres_sequences.py

@@ -6,9 +6,13 @@ in each table. This is necessary because the migration script inserts records
 with explicit IDs, which doesn't automatically advance PostgreSQL sequences.
 
 Usage:
-    # Using config file
+    # Using default config.yaml
     uv run python -m alpine_bits_python.util.fix_postgres_sequences
 
+    # Using a specific config file
+    uv run python -m alpine_bits_python.util.fix_postgres_sequences \
+        --config config/postgres.yaml
+
     # Using DATABASE_URL environment variable
     DATABASE_URL="postgresql+asyncpg://user:pass@host/db" \
         uv run python -m alpine_bits_python.util.fix_postgres_sequences
@@ -20,12 +24,14 @@ Usage:
 
 import argparse
 import asyncio
+import os
 import sys
 from pathlib import Path
 
 # Add parent directory to path so we can import alpine_bits_python
 sys.path.insert(0, str(Path(__file__).parent.parent.parent))
 
+import yaml
 from sqlalchemy import text
 from sqlalchemy.ext.asyncio import async_sessionmaker, create_async_engine
 
@@ -122,6 +128,13 @@ async def main():
         "--database-url",
         help="PostgreSQL database URL (default: from config or DATABASE_URL env var)",
     )
+    parser.add_argument(
+        "--config",
+        help=(
+            "Path to config file containing PostgreSQL database URL "
+            "(keeps password out of bash history)"
+        ),
+    )
 
     args = parser.parse_args()
 
@@ -133,15 +146,38 @@ async def main():
         _LOGGER.warning("Failed to load config: %s. Using defaults.", e)
         config = {}
 
-    # Determine database URL
+    # Determine database URL (same logic as migrate_sqlite_to_postgres)
     if args.database_url:
         database_url = args.database_url
+    elif args.config:
+        # Load config file manually (simpler YAML without secrets)
+        _LOGGER.info("Loading database config from: %s", args.config)
+        try:
+            config_path = Path(args.config)
+            config_text = config_path.read_text()
+            target_config = yaml.safe_load(config_text)
+            database_url = target_config["database"]["url"]
+            _LOGGER.info("Successfully loaded config")
+        except (FileNotFoundError, ValueError, KeyError):
+            _LOGGER.exception("Failed to load config")
+            _LOGGER.info(
+                "Config file should contain: database.url with PostgreSQL connection"
+            )
+            sys.exit(1)
     else:
-        database_url = get_database_url(config)
+        database_url = os.environ.get("DATABASE_URL")
+        if not database_url:
+            # Try from default config
+            database_url = get_database_url(config)
 
     if "postgresql" not in database_url and "postgres" not in database_url:
         _LOGGER.error("This script only works with PostgreSQL databases.")
-        _LOGGER.error("Current database URL: %s", database_url)
+        url_type = database_url.split("+")[0] if "+" in database_url else "unknown"
+        _LOGGER.error("Current database URL type detected: %s", url_type)
+        _LOGGER.error("\nSpecify PostgreSQL database using one of:")
+        _LOGGER.error("  - --config config/postgres.yaml")
+        _LOGGER.error("  - DATABASE_URL environment variable")
+        _LOGGER.error("  - --database-url postgresql+asyncpg://user:pass@host/db")
         sys.exit(1)
 
     # Run the fix