devcontainer-contrib 0.0.26

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Devcontainers Contrib CLI

Installation

pip install devcontainer-contrib[generate]

Feature Generation:

Usage: python -m devcontainer_contrib features generate [OPTIONS]
                                                        FEATURE_DEFINITION
                                                        OUTPUT_DIR

Arguments:
  FEATURE_DEFINITION  [required]
  OUTPUT_DIR          [required]

Options:
  --help                          Show this message and exit.

Input for feature generation is a feature-definition.json file This is an extended version of the devcontainer-feature.json file with additional fields:

{   
    ...
    regular devcontainer-json fields  like id, name, description etc
    ...


    # dependencies are list of features and options  (those will be installed as prerequisites to your feature)
    "dependencies": [
        {
            "feature": "ghcr.io/devcontainers-contrib/features/asdf-package:latest",
            "options": {
                "plugin": "act",

                "version": "latest"
            }
        }
    ],

    # This command will be executed after the dependency feature list has been installed
    "install_command": "echo 'Done'",

    # this example test scenario checks the default options (empty options dict), each test_command should exit wth code `0` if your feature is installed correctly.
    "test_scenarios": [
        {
            "name": "test_defaults",
            "image": "mcr.microsoft.com/devcontainers/base:debian",
            "test_commands": [
                "act --version"
            ],
            "options": {}
        }
    ]
}

redirect input

{
    ...


    "options": {
        "version": {
            "type": "string",
            "default": "latest",
            "description": "Select the version of act to install."
        }
    },

    # you can also redirect one of your actual devcontainer-feature.json options values into a dependency input, note the `$options.version` pointer to the asdf-package version option
    "dependencies": [
        {
            "feature": "ghcr.io/devcontainers-contrib/features/asdf-package:latest",
            "options": {
                "plugin": "act",
                "version": "$options.version"
            }
        }
    ],

    ...
}

Usage example

this will generate the Elixir feature It assumes you have the devcontainer-contrib cli already installed

git clone https://github.com/devcontainers-contrib/cli --depth 1
cd cli


devcontainer-contrib features generate "./test/resources/test_feature_definitions/elixir-asdf/feature-definition.json" "./output_dir"