Introduced --config CLI parameter to provide custom configuration file

[psmyrek]

🚀 Summary

Introduced --config CLI parameter which allows providing custom configuration filename that will be used instead of the default mrgit.json file.

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📌 Related issues

• Closes Define a custom config path #189

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💡 Additional information

My test cases:

1. Create custom mrgit-custom.json configuration file in this repository. Below you can find my example configuration:

   {
     "packages": "external/",
     "$rootRepository": "cksource/mrgit",
     "dependencies": {
       "ckeditor5-dev": "ckeditor/ckeditor5-dev",
       "ckeditor5-linters-config": "ckeditor/ckeditor5-linters-config"
     },
     "presets": {
       "dev": {
         "$rootRepository": "cksource/mrgit",
         "ckeditor5-dev": "ckeditor/ckeditor5-dev",
         "ckeditor5-linters-config": "ckeditor/ckeditor5-linters-config"
       }
     }
   }

2. Execute mrgit commands:

   • node index.js - new --config CLI parameter is defined.
   • node index.js sync - throws "Cannot find the configuration file." error.
   • node index.js sync --config mrgit-custom.json - clones repositories into ./external directory.
   • node index.js save --config mrgit-custom.json --preset dev - stores hashes in mrgit-custom.json file in the dev preset.

[martnpaneq]

I like that you refactored the code to use the immutable object creation pattern to create options.

[martnpaneq]

Is cwd needed as an argument right now? It is not being used.

[psmyrek]

This cwd parameter is required in tests 😒

[psmyrek]

I decided that refactoring the tests was too much to do in this PR, so ¯\(ツ)/¯.

[martnpaneq]

Works fine :)