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guideMr. Git

Mr. Git is a multi-repository manager for Git. In CKEditor 5, you can use it for easy development and testing of various CKEditor 5-related repositories, such as ckeditor5-dev or ckeditor5-linters-config.

# Setup

To use the tool, install it globally from the npm.

npm install -g mrgit

Then, put a file named mrgit.json in the root of the ckeditor5 repository. This is an example content of this file:

    "packages": "external/",
    "dependencies": {
        "ckeditor5-linters-config": "ckeditor/ckeditor5-linters-config@latest",
        "ckeditor5-dev": "ckeditor/ckeditor5-dev@latest"
    "presets": {
        "dev": {
            "ckeditor5-dev": "ckeditor/ckeditor5-dev"
        "example-feature": {
            "ckeditor5-linters-config": "ckeditor/ckeditor5-linters-config#i/1-example-feature",
            "ckeditor5-dev": "ckeditor/ckeditor5-dev#i/1-example-feature"

Support for tags and presets is available since mrgit v2.0.0+.

# Usage

In the example configuration file listed above, we have defined base dependencies that should be used. These use the @latest tag, which means that the latest release tag will be used. This should coincide with the latest version available on npm. After calling mrgit sync, these dependencies will be cloned and made available locally in the specified (latest) version.

Alternatively, you can use one of the presets defined in the latter section of the file, for example, the dev preset. To do so, execute mrgit sync --preset dev – this will use versions specified in the preset instead. ckeditor/ckeditor5-dev does not have any tag or branch specified, so the master branch will be used by default.

Since only ckeditor5-dev is specified in this preset, version used for ckeditor5-linters-config will be the same as specified in the default dependencies section. Using this mechanism, it is possible to switch between production and development versions of the dependencies used by the ckeditor5 repository.

For all available commands and configuration options, see the Mr. Git documentation.