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AJ ONeal
75e4a883b7
Migration{ID, Name} is the identity type returned by Up/Down/Latest/Drop.
Script{Migration, Up, Down} holds collected SQL content from Collect().
Migrator interface now takes SQL as a separate parameter:
ExecUp(ctx, Migration, sql string)
ExecDown(ctx, Migration, sql string)
This separates identity from content — callers that track what ran
don't need to carry around SQL strings they'll never use.
Updates shmigrate to match (ignores the sql parameter, references
files on disk instead).
sqlmigrate
Database-agnostic SQL migration library for Go.
Backend packages
Each backend is a separate Go module to avoid pulling unnecessary drivers:
| Package | Database | Driver |
|---|---|---|
| pgmigrate | PostgreSQL | pgx/v5 |
| mymigrate | MySQL / MariaDB | go-sql-driver/mysql |
| litemigrate | SQLite | database/sql (caller imports driver) |
| msmigrate | SQL Server | go-mssqldb |
| shmigrate | Shell scripts | (uses native CLI) |
CLI
The sql-migrate CLI uses shmigrate to generate shell scripts for managing migrations without a Go dependency at runtime.