45 lines
1.8 KiB
Markdown
45 lines
1.8 KiB
Markdown
# Emigrate
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> The modern, modular and flexible migration tool for any database
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It's effectively a successor of [klei-migrate](https://www.npmjs.com/package/klei-migrate) and [Immigration](https://www.npmjs.com/package/immigration).
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## Features
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- Database agnostic
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- Emigrate can migrate any database
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- Works at any scale
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- Supports any database as storage so multiple instances can share the same migration history
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- Uses smart locking to ensure only one instance migrates a certain migration at a time
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- Thanks to the smart locking it's safe to run migrations in parallel
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- Can be run inside containers
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- It's common for Docker or Kubernetes to kill containers with health checks if migrations takes too long to run
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- Emigrate makes sure the migration history does not get stuck in a locked state if that's the case
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- Supports any file type for your migration files
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- You can easily write migrations in JavaScript, TypeScript or plain SQL (or any other language)
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- JavaScript migration files written using CommonJS or ES modules (ESM) are supported out of the box
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- You can customize the template for your migration files to fit your needs (or use a plugin to do it for you)
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- Easy to debug
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- Emigrate will store any errors that occur during migration in the migration history so you can easily debug them
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## Installation
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Install the Emigrate CLI in your project:
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```bash
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npm install --save-dev @emigrate/cli
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```
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## Usage
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Create a new migration:
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```bash
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emigrate new -d migrations -e .js create some fancy table
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```
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Will create a new empty JavaScript migration file with the name "YYYYMMDDHHmmssuuu_create_some_fancy_table.js" in the `migrations` directory.
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## License
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Emigrate is licensed under the MIT license. See [LICENSE](LICENSE) for the full license text.
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