DCLint GitHub Actions

Lint Docker Compose files with DCLint, using GitHub Actions.

This repository provides three official GitHub Actions:

Variant	Description
Node.js (base)	Runs dclint via npx (requires Node in runner)
Docker	Runs dclint inside Docker container (requires Docker in runner)
Reviewdog	Integrates dclint with reviewdog

Node.js (npx) Action

This variant runs dclint via npx. Requires Node.js 18+ (default in GitHub runners).

Example usage

- uses: docker-compose-linter/dclint-github-action@v1.5.0
  with:
    path: ./path-to-compose-files/
    recursive: true

Inputs

Name	Description	Default
path	Path to file or directory	.
recursive	Recursively search directories	false
fix	Apply automatic fixes	false
dry-run	Simulate fixes without saving	false
formatter	Output formatter (e.g., json, github)	github
max-warnings	Max warnings allowed before failure	-1
exclude	Exclude files or directories (space-separated)
disable-rule	Skip specific rules (space-separated)
debug	Enable debug output	false

Output

This action writes a summary to $GITHUB_STEP_SUMMARY.

🐳 Docker-based Action

This action runs DCLint using Docker image. Requires Docker support (default in GitHub runners).

Example usage

- uses: docker-compose-linter/dclint-github-action/docker-action@v1.5.0
  with:
    args: '["./path-to-compose-files/", "-r", "--debug", "-f", "github"]'

Inputs

Name	Description	Default
args	Arguments passed to dclint CLI	[".", "-f", "github"]

🐶 Reviewdog-integrated Action

Integrates DCLint with Reviewdog to improve code review experience.

Example usage

name: reviewdog
on: [ pull_request ]
jobs:
  dclint:
    name: runner / dclint
    runs-on: ubuntu-latest
    steps:
      - name: Check out code
        uses: actions/checkout@v4.2.2
      - name: dclint
        uses: docker-compose-linter/dclint-github-action/reviewdog-action@v1.5.0
        with:
          reporter: github-pr-review # Default is `github-pr-check`
          dclint_flags: ./path-to-compose-files/ # Default is `.`

Inputs

Name	Description	Default
github_token	GitHub token for reviewdog	${{ secrets.GITHUB_TOKEN }}
tool_name	Name for tool display in reviewdog report	dclint
reporter	Reporter of reviewdog command [github-pr-check, github-pr-review]	github-pr-check
filter_mode	Filtering mode for the reviewdog command [added, diff_context, file, nofilter]	added
fail_level	If set to none, always use exit code 0 for reviewdog. Otherwise, exit code 1 for reviewdog if it finds at least 1 issue with severity greater than or equal to the given level [none, any, info , warning, error]	none
level	Report level for reviewdog [info, warning, error]	error
reviewdog_flags	Additional flags to pass to reviewdog
dclint_flags	Additional CLI flags to pass to dclint	.

Output

Reviewdog posts annotations in the PR UI. Errors do not fail the job by default.

Pull Request Examples

Browse example pull requests in docker-compose-linter/example-github-action to see how the actions runs in CI workflows.

Versioning

This repository itself is versioned using semantic-release. All changes are categorized and released based on Conventional Commits.

Dependency Updates

• The versions of dclint and reviewdog are checked weekly via a scheduled GitHub Action. The currently used version of dclint is stored in the VERSION_DCLINT file and synced across all action variants automatically.
• If a new version is available, a pull request is automatically created to update all relevant files.

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

If you'd like to contribute to this project, please read through the CONTRIBUTING.md file.

Please note that this project is released with a Contributor Code of Conduct. By participating in this project, you agree to abide by its terms.

Changelog

The changelog is automatically generated based on semantic-release and conventional commits.

See the CHANGELOG.md file for detailed lists of changes for each version.

License

This project is licensed under the MIT License. See the LICENSE file for more information.

Contacts and Support

If you find this repository helpful, kindly consider showing your appreciation by giving it a star ⭐.

If you have any questions or suggestions, feel free to reach out:

• Email: s.kupletsky@gmail.com
• Х/Twitter: zavoloklom
• Instagram: zavoloklom
• GitHub: zavoloklom

Also, you can support this project with a one-time donation or becoming a sponsor: