0.0.3 • Public • Published


    A rudimentary forward-only database migration tool for NodeJS and SQLite.

    How This Works, In a Nutshell

    • Migrations are forward only. No rollbacks.
    • Migrations are in the form of a .sql file containg the SQL to be run
    • Migration files must use a particular naming convention
    • To run a migration, you must pass a configuration that only consists of:
      • The path to the folder containing your migration files (no subfolders are checked)
      • The path to your SQLite Database
      • The name of your migrations table (don't rename it after running your first migration, or it will rerun all prior migrations)

    To install

    npm install sqlite-forward-migrations

    How To Use


    var SQLiteForwardMigration, config, migrationJob;
    SQLiteForwardMigration = require("sqlite-forward-migrations");
    config = {
        "migrationPath": "../db/migrations",
        "migrationTable": "_migrations",
        "databasePath": "../db/test.db"
    migrationJob = new SQLiteForwardMigration(config);

    In the migrations folder:


    Naming Convention for SQL Files


    The first part "0001" is the version tag. This part can be up to 10 characters, ideally a zero padded number. Migration files are loaded in ascending order. Sorting may be unpredictable if you don't stick to a zero padded number. Each file should be a consecutive number, with no gaps.

    The version tag must be followed by EXACTLY TWO underscores __.

    The second part is a descriptor for the SQL script. You can format this any way you want, as long as the characters are legal in a filename.

    The third part is .sql file extension. This migration tool only works with .sql files. All other file types are ignored.

    Frequently Asked Questions

    Why not use something like Flyway instead?

    This tool is actually inspired by Flyway, but I opted against using Flyway instead because I didn't want to install Java in my containers just to run simple migrations.

    What is "forward only" and why do it that way?

    The answer is here: https://nickcraver.com/blog/2016/05/03/stack-overflow-how-we-do-deployment-2016-edition/#database-migrations

    Rollbacks do not and will never exist in this tool.

    Why SQLite Only?

    The goal was not to make a solution for everyone. This was created to satisfy the requirements of one of my projects. I have created a pg-forward-migrations NPM as well.

    If you need a cross-database migration tool, there are already "bigger" solutions like Flyway and Liquibase.


    npm i sqlite-forward-migrations

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