A Super Linter for your GitHub Actions pipeline

栏目: IT技术 · 发布时间: 4年前

内容简介:This repository is for theIt is a simple combination of various linters, written inThe end goal of this tool:

Super-Linter

This repository is for the GitHub Action to run a Super-Linter .

It is a simple combination of various linters, written in bash , to help validate your source code.

The end goal of this tool:

  • Prevent broken code from being uploaded to master branches
  • Help establish coding best practices across multiple languages
  • Build guidelines for code layout and format
  • Automate the process to help streamline code reviews

How it Works

The super-linter finds issues and reports them to the console output. Fixes are suggested in the console output but not automatically fixed, and a status check will show up as failed on the pull request.

Supported Linters

Developers on GitHub can call the GitHub Action to lint their code base with the following list of linters:

Language Linter
Ansible ansible-lint
CoffeeScript coffeelint
Dockerfile dockerfilelint
Golang golangci-lint
JavaScript eslint standard js
JSON jsonlint
Markdown markdownlint
Perl perl
Python3 pylint
Ruby RuboCop
Shell Shellcheck
Terraform tflint
TypeScript eslint standard js
XML LibXML
YAML YamlLint

How to use

To use this GitHub Action you will need to complete the following:

  • Add the GitHub Action: Super-Linter to your current GitHub Actions workflow
  • Enjoy your more stable , and cleaner code base
  • Check out the Wiki for customization options

Example connecting GitHub Action Workflow

In your repository you should have a .github/workflows folder with GitHub Action similar to below:

  • .github/workflows/linter.yml

This file should have the following code:

---
###########################
###########################
## Linter GitHub Actions ##
###########################
###########################
name: Lint Code Base

#
# Documentation:
# https://help.github.com/en/articles/workflow-syntax-for-github-actions
#

#############################
# Start the job on all push #
#############################
on:
  push:
    branches-ignore:
      - 'master'

###############
# Set the Job #
###############
jobs:
  build:
    # Name the Job
    name: Lint Code Base
    # Set the agent to run on
    runs-on: ubuntu-latest

    ##################
    # Load all steps #
    ##################
    steps:
      ##########################
      # Checkout the code base #
      ##########################
      - name: Checkout Code
        uses: actions/checkout@v2

      ################################
      # Run Linter against code base #
      ################################
      - name: Lint Code Base
        uses: github/super-linter@v2.0.0
        env:
          VALIDATE_ALL_CODEBASE: false
          VALIDATE_ANSIBLE: false
...

Environment variables

The super-linter allows you to pass the following ENV variables to be able to trigger different functionality.

Note: All the VALIDATE_[LANGUAGE] variables behave in a specific way.

If none of them are passed, then they all default to true.

However if any one of the variables are set, we default to leaving any unset variable to false.

This means that if you run the linter "out of the box", all languages will be checked. But if you wish to select specific linters, we give you full control to choose which linters are run, and won't run anything unexpected.

ENV VAR Default Value Notes
VALIDATE_ALL_CODEBASE true Will parse the entire repository and find all files to validate across all types. NOTE: When set to false , only new or edited files will be parsed for validation.
VALIDATE_YAML true Flag to enable or disable the linting process of the language.
VALIDATE_JSON true Flag to enable or disable the linting process of the language.
VALIDATE_XML true Flag to enable or disable the linting process of the language.
VALIDATE_MD true Flag to enable or disable the linting process of the language.
VALIDATE_BASH true Flag to enable or disable the linting process of the language.
VALIDATE_PERL true Flag to enable or disable the linting process of the language.
VALIDATE_PYTHON true Flag to enable or disable the linting process of the language.
VALIDATE_RUBY true Flag to enable or disable the linting process of the language.
VALIDATE_COFFEE true Flag to enable or disable the linting process of the language .
VALIDATE_ANSIBLE true Flag to enable or disable the linting process of the language.
VALIDATE_JAVASCRIPT_ES true Flag to enable or disable the linting process of the language. (Utilizing: eslint)
VALIDATE_JAVASCRIPT_STANDARD true Flag to enable or disable the linting process of the language. (Utilizing: standard)
VALIDATE_TYPESCRIPT_ES true Flag to enable or disable the linting process of the language. (Utilizing: eslint)
VALIDATE_TYPESCRIPT_STANDARD true Flag to enable or disable the linting process of the language. (Utilizing: standard)
VALIDATE_DOCKER true Flag to enable or disable the linting process of the language.
VALIDATE_GO true Flag to enable or disable the linting process of the language.
VALIDATE_TERRAFORM true Flag to enable or disable the linting process of the language.
ANSIBLE_DIRECTORY /ansible Flag to set the root directory for Ansible file location(s).
ACTIONS_RUNNER_DEBUG false Flag to enable additional information about the linter, versions, and additional output.

Template rules files

You can use the GitHub Super-Linter with or without your own personal rules sets. This allows for greater flexibility for each individual code base. The Template rules all try to follow the standards we believe should be enabled at the basic level.

  • Copy any or all template rules files from TEMPLATES/ into your repository in the location: .github/linters/ of your repository
    • If your repository does not have rules files, they will fall back to defaults in this repositories TEMPLATE folder

Disabling rules

If you need to disable certain rules and functionality , you can view Disable Rules

Docker Hub

The Docker container that is built from this repository is located at https://hub.docker.com/r/github/super-linter

Running Super-Linter locally (troubleshooting/debugging/enhancements)

If you find that you need to run super-linter locally, you can follow the documentation at Running super-linter locally

CI/CT/CD

The Super-Linter has CI/CT/CD configured utilizing GitHub Actions.

  • When a branch is created and code is pushed, a GitHub Action is triggered for building the new Docker container with the new codebase
  • The Docker container is then ran against the test cases to validate all code sanity
    • .automation/test contains all test cases for each language that should be validated
  • These GitHub Actions utilize the Checks API and Protected Branches to help follow the SDLC
  • When the Pull Request is merged to master, the Super-Linter Docker container is then updated and deployed with the new codebase
    • Note: The branches Docker container is also removed from DockerHub to cleanup after itself

Limitations

Below are a list of the known limitations for the GitHub Super-Linter :

  • Due to being completely packaged at run time, you will not be able to update dependencies or change versions of the enclosed linters and binaries
  • Reading additional details from package.json are not read by the GitHub Super-Linter
  • Downloading additional codebases as dependencies from private repositories will fail due to lack of permissions

How to contribute

If you would like to help contribute to this GitHub Action, please see CONTRIBUTING

License


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