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# Super-Linter
Super-linter is a ready-to-run collection of linters and code analyzers, to help
validate and fix your source code.
The goal of super-linter is to help you establish best practices and consistent
formatting across multiple programming languages, and ensure developers are
adhering to those conventions.
Super-linter analyzes source code files using several tools, and reports the
issues that those tools find as console output, and as
[GitHub Actions status checks](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/collaborating-on-repositories-with-code-quality-features/about-status-checks).
You can also
[run super-linter outside GitHub Actions](#run-super-linter-outside-github-actions).
Super-linter can also help you
[fix linting and formatting issues](#fix-linting-and-formatting-issues).
Super-linter is licensed under an
[MIT License](https://github.com/super-linter/super-linter/blob/main/LICENSE).
[![Super-Linter](https://github.com/super-linter/super-linter/actions/workflows/cd.yml/badge.svg)](https://github.com/marketplace/actions/super-linter)
Here are some notable Super-linter features:
- **MIT License**: Super-linter is licensed under a [MIT License](LICENSE).
- **Independent project**: Super-linter is maintained by a team of independent
developers and is not commercially backed by any entity that might influence
the course of the project.
- **Widely used**: Super-linter is the
[most widely used](https://github.com/super-linter/super-linter/network/dependents)
and [forked](https://github.com/super-linter/super-linter/forks) project of
this kind.
- **Runs linters in parallel**: Since `v6`, Super-linter parallelizes running
all the included linters, leading to scanning massive code repositories in
seconds.
- **Highly curated set of linters**: Avoid including linters that implement
overlapping checks, reducing bloat, scanning times, and container image size.
- **Run on GitHub Actions or other environments**: Super-linter runs
[on GitHub Actions](#get-started) and
[other runtime environments](#run-using-a-container-runtime-engine), with the
only dependency of an OCI-compatible container runtime engine, such as Docker.
- **Lean codebase**: Super-linter doesn't reinvent the wheel, and builds on top
of established tools and standards, such as
[GNU Parallel](https://www.gnu.org/software/parallel/).
- **Extensive test suite**: Super-linter includes an extensive test suite that
covers every single linter and analyzer that Super-linter ships.
- **Original design**: to the best of our knowledge, Super-linter is the first
open-source, fully-containerized linting suite. Other projects borrow ideas
and design choices from Super-linter (and we're cool with that :).
## Supported linters and code analyzers
Super-linter supports the following tools:
| Language | Linters | Formatters |
| --------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------ |
| **Ansible** | [ansible-lint](https://github.com/ansible/ansible-lint) | See YAML and Python formatters |
| **Amazon States Language** | [ASL Validator](https://github.com/ChristopheBougere/asl-validator) | See JSON formatters |
| **AWS CloudFormation templates** | [AWS CloudFormation Linter (cfn-lint)](https://github.com/aws-cloudformation/cfn-lint), [Checkov](https://www.checkov.io/) | See YAML formatters |
| **Azure Resource Manager (ARM)** | [Azure Resource Manager Template Toolkit (arm-ttk)](https://github.com/azure/arm-ttk), [Checkov](https://www.checkov.io/) | See JSON formatters |
| **C**, **C++** | [cpp-lint](https://github.com/cpplint/cpplint) | [clang-format](https://clang.llvm.org/docs/ClangFormatStyleOptions.html) |
| **C#** | See Dotnet solutions | [dotnet format whitespace command](https://github.com/dotnet/format) |
| **CSS**, **SCSS**, **Sass** | [stylelint](https://stylelint.io/) | [Prettier](https://prettier.io/) |
| **Clojure** | [clj-kondo](https://github.com/borkdude/clj-kondo) | |
| **CoffeeScript** | [coffeelint](https://coffeelint.github.io/) | |
| **Commit messages** | [commitlint](https://commitlint.js.org/) | |
| **Copy/paste detection** | [jscpd](https://github.com/kucherenko/jscpd) | N/A |
| **Dart** | [dart analyze command](https://dart.dev/guides/language/analysis-options) | |
| **Dockerfile** | [Haskell Dockerfile Linter (Hadolint)](https://github.com/hadolint/hadolint), [Checkov](https://www.checkov.io/) | |
| **Dotnet (.NET) solutions (sln)** | [dotnet format command](https://learn.microsoft.com/en-us/dotnet/core/tools/dotnet-format): analyzers, style subcommands. | [dotnet format command](https://learn.microsoft.com/en-us/dotnet/core/tools/dotnet-format): whitespace subcommand. |
| **EditorConfig** | [editorconfig-checker](https://github.com/editorconfig-checker/editorconfig-checker) | |
| **.env** | [dotenv-linter](https://github.com/dotenv-linter/dotenv-linter) | |
| **Gherkin** | [gherkin-lint](https://github.com/vsiakka/gherkin-lint) | |
| **Git merge conflict markers** | [Git conflict markers presence in files](https://git-scm.com/docs/git-config#Documentation/git-config.txt-mergeconflictStyle) | N/A |
| **GitHub Actions** | [actionlint](https://github.com/rhysd/actionlint) | See YAML formatters |
| **Golang** | [golangci-lint](https://github.com/golangci/golangci-lint) | |
| **GoReleaser** | [GoReleaser](https://github.com/goreleaser/goreleaser) | See YAML formatters |
| **GraphQL** | | [Prettier](https://prettier.io/) |
| **Groovy** | [npm-groovy-lint](https://github.com/nvuillam/npm-groovy-lint) | |
| **Helm charts** | [Checkov](https://www.checkov.io/) | See YAML formatters |
| **HTML** | [HTMLHint](https://github.com/htmlhint/HTMLHint) | [Prettier](https://prettier.io/) |
| **Java** | [checkstyle](https://checkstyle.org) | [google-java-format](https://github.com/google/google-java-format) |
| **JavaScript** | [ESLint](https://eslint.org/), [standard js](https://standardjs.com/) | [Prettier](https://prettier.io/) |
| **JSON** | [eslint-plugin-jsonc (configured for JSON)](https://www.npmjs.com/package/eslint-plugin-jsonc) (default), [eslint-plugin-json](https://www.npmjs.com/package/eslint-plugin-json) | [Prettier](https://prettier.io/) |
| **JSONC**, **JSON5** | [eslint-plugin-jsonc](https://www.npmjs.com/package/eslint-plugin-jsonc) | [Prettier](https://prettier.io/) |
| **JSX**, **TSX** | [eslint-plugin-jsx-a11y](https://github.com/jsx-eslint/eslint-plugin-jsx-a11y), [eslint-plugin-react](https://github.com/jsx-eslint/eslint-plugin-react) | [Prettier](https://prettier.io/) |
| **Kubernetes** | [kubeconform](https://github.com/yannh/kubeconform), [Checkov](https://www.checkov.io/) | See YAML formatters |
| **Kotlin** | [ktlint](https://github.com/pinterest/ktlint) | |
| **LaTeX** | [ChkTex](https://www.nongnu.org/chktex/) | |
| **Lua** | [luacheck](https://github.com/luarocks/luacheck) | |
| **Markdown** | [markdownlint](https://github.com/igorshubovych/markdownlint-cli) | [Prettier](https://prettier.io/) |
| **Natural language** | [textlint](https://textlint.github.io/) | N/A |
| **OpenAPI** | [spectral](https://github.com/stoplightio/spectral) | See YAML formatters |
| **Perl** | [perlcritic](https://metacpan.org/pod/Perl::Critic) | |
| **PHP** | [PHP built-in linter](https://www.php.net/manual/en/features.commandline.options.php), [PHP CodeSniffer](https://github.com/PHPCSStandards/PHP_CodeSniffer), [PHPStan](https://phpstan.org/), [Psalm](https://psalm.dev/) | |
| **PowerShell** | [PSScriptAnalyzer](https://github.com/PowerShell/Psscriptanalyzer) | |
| **Protocol Buffers (Protobuf)** | [protolint](https://github.com/yoheimuta/protolint) | |
| **Python3** | [pylint](https://pylint.pycqa.org/), [flake8](https://flake8.pycqa.org/en/latest/), [isort](https://pypi.org/project/isort/), [ruff](https://github.com/astral-sh/ruff) | [black](https://github.com/psf/black), [pyink](https://github.com/google/pyink) |
| **R** | [lintr](https://github.com/jimhester/lintr) | |
| **Raku** | [Raku](https://raku.org) | |
| **Renovate** | [renovate-config-validator](https://docs.renovatebot.com/config-validation/) | See JSON formatters |
| **Ruby** | [RuboCop](https://github.com/rubocop-hq/rubocop) | |
| **Rust** | [Clippy](https://github.com/rust-lang/rust-clippy) | [Rustfmt](https://github.com/rust-lang/rustfmt) |
| **Scala** | | [scalafmt](https://github.com/scalameta/scalafmt) |
| **Secrets** | [GitLeaks](https://github.com/zricethezav/gitleaks) | N/A |
| **Shell** | [ShellCheck](https://github.com/koalaman/shellcheck), `executable bit check` | [shfmt](https://github.com/mvdan/sh) |
| **Snakemake** | [snakemake --lint](https://snakemake.readthedocs.io/en/stable/snakefiles/writing_snakefiles.html#best-practices) | [snakefmt](https://github.com/snakemake/snakefmt/) |
| **SQL** | [sqlfluff](https://github.com/sqlfluff/sqlfluff) | |
| **Tekton** | [tekton-lint](https://github.com/IBM/tekton-lint) | See YAML formatters |
| **Terraform** | [tflint](https://github.com/terraform-linters/tflint) , [terrascan](https://github.com/accurics/terrascan), [Checkov](https://www.checkov.io/) | [terraform fmt](https://developer.hashicorp.com/terraform/cli/commands/fmt) |
| **Terragrunt** | [terragrunt](https://github.com/gruntwork-io/terragrunt) | N/A |
| **TypeScript** | [ESLint](https://eslint.org/), [standard js](https://standardjs.com/) | [Prettier](https://prettier.io/) |
| **Vue** | | [Prettier](https://prettier.io/) |
| **XML** | [LibXML](http://xmlsoft.org/) | |
| **YAML** | [YamlLint](https://github.com/adrienverge/yamllint) | [Prettier](https://prettier.io/) |
## Get started
More in-depth [tutorial](https://www.youtube.com/watch?v=EDAmFKO4Zt0&t=118s)
available
To run super-linter as a GitHub Action, you do the following:
1. Create a new
[GitHub Actions workflow](https://docs.github.com/en/actions/using-workflows/about-workflows#about-workflows)
in your repository with the following content:
```yaml
---
name: Lint
on: # yamllint disable-line rule:truthy
push: null
pull_request: null
permissions: {}
jobs:
build:
name: Lint
runs-on: ubuntu-latest
permissions:
contents: read
packages: read
# To report GitHub Actions status checks
statuses: write
steps:
- name: Checkout code
uses: actions/checkout@v4
with:
# super-linter needs the full git history to get the
# list of files that changed across commits
fetch-depth: 0
- name: Super-linter
uses: super-linter/super-linter@v7.2.0 # x-release-please-version
env:
# To report GitHub Actions status checks
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
```
1. Commit that file to a new branch.
1. Push the new commit to the remote repository.
1. Create a new pull request to observe the results.
## Upgrade to newer super-linter versions
For more information about upgrading super-linter to a new major version, see
the [upgrade guide](docs/upgrade-guide.md).
## Add Super-Linter badge in your repository readme
You can show Super-Linter status with a badge in your repository readme:
Example:
```markdown
[![Super-Linter](https://github.com/<OWNER>/<REPOSITORY>/actions/workflows/<WORKFLOW_FILE_NAME>/badge.svg)](https://github.com/marketplace/actions/super-linter)
```
For more information, see
[Adding a workflow status badge](https://docs.github.com/en/actions/monitoring-and-troubleshooting-workflows/adding-a-workflow-status-badge).
## Super-linter variants
Super-Linter provides several variants:
- `standard`: `super-linter/super-linter@[VERSION]`: includes all supported
linters.
- `slim`: `super-linter/super-linter/slim@[VERSION]`: includes all supported
linters except:
- Rustfmt
- Rust Clippy
- Azure Resource Manager Template Toolkit (arm-ttk)
- PSScriptAnalyzer
- `dotnet` (.NET) commands and subcommands
## Configure Super-linter
You can configure Super-linter using the following environment variables:
| **Environment variable** | **Default Value** | **Description** |
| ----------------------------------------------- | ---------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **ANSIBLE_CONFIG_FILE** | `.ansible-lint.yml` | Filename for [Ansible-lint configuration](https://ansible.readthedocs.io/projects/lint/configuring/) (ex: `.ansible-lint`, `.ansible-lint.yml`) |
| **ANSIBLE_DIRECTORY** | `/ansible` | Flag to set the root directory for Ansible file location(s), relative to `DEFAULT_WORKSPACE`. Set to `.` to use the top-level of the `DEFAULT_WORKSPACE`. |
| **BASH_EXEC_IGNORE_LIBRARIES** | `false` | If set to `true`, shell files with a file extension and no shebang line are ignored when checking if the executable bit is set. |
| **BASH_FILE_NAME** | `.shellcheckrc` | Filename for [Shellcheck](https://github.com/koalaman/shellcheck/blob/master/shellcheck.1.md#rc-files) |
| **BASH_SEVERITY** | Shellcheck default severity | Specify the minimum severity of errors to consider in shellcheck. Valid values in order of severity are error, warning, info and style. |
| **CHECKOV_FILE_NAME** | `.checkov.yaml` | Configuration filename for Checkov. |
| **CLANG_FORMAT_FILE_NAME** | `.clang-format` | Configuration filename for [clang-format](https://clang.llvm.org/docs/ClangFormatStyleOptions.html). |
| **CREATE_LOG_FILE** | `false` | If set to `true`, it creates the log file. You can set the log filename using the `LOG_FILE` environment variable. This overrides any existing log files. |
| **CSS_FILE_NAME** | `.stylelintrc.json` | Filename for [Stylelint configuration](https://github.com/stylelint/stylelint) (ex: `.stylelintrc.yml`, `.stylelintrc.yaml`) |
| **DEFAULT_BRANCH** | Default repository branch when running on GitHub Actions, `master` otherwise | The name of the repository default branch. There's no need to configure this variable when running on GitHub Actions |
| **DEFAULT_WORKSPACE** | `/tmp/lint` | The location containing files to lint if you are running locally. Defaults to `GITHUB_WORKSPACE` when running in GitHub Actions. There's no need to configure this variable when running on GitHub Actions. |
| **DISABLE_ERRORS** | `false` | Flag to have the linter complete with exit code 0 even if errors were detected. |
| **DOCKERFILE_HADOLINT_FILE_NAME** | `.hadolint.yaml` | Filename for [hadolint configuration](https://github.com/hadolint/hadolint) (ex: `.hadolintlintrc.yaml`) |
| **EDITORCONFIG_FILE_NAME** | `.ecrc` | Filename for [editorconfig-checker configuration](https://github.com/editorconfig-checker/editorconfig-checker) |
| **ENABLE_COMMITLINT_STRICT_MODE** | `false` | If set to `true`, enables [commitlint strict mode](https://commitlint.js.org/reference/cli.html). |
| **ENABLE_GITHUB_ACTIONS_GROUP_TITLE** | `false` if `RUN_LOCAL=true`, `true` otherwise | Flag to enable [GitHub Actions log grouping](https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#grouping-log-lines). |
| **ENABLE_GITHUB_ACTIONS_STEP_SUMMARY** | `false` if `RUN_LOCAL=true`, `true` otherwise | Flag to enable [GitHub Actions job summary](https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#adding-a-job-summary) for the Super-linter action. For more information, see [Summary outputs](#summary-outputs). |
| **ENFORCE_COMMITLINT_CONFIGURATION_CHECK** | `false` | If set to `true` and `VALIDATE_GIT_COMMITLINT` is set to `true`, Super-linter exits with an error if there's no commitlint configuration file. Otherwise, Super-linter emits a warning and forcefully sets `VALIDATE_GIT_COMMITLINT` to `false`. |
| **FILTER_REGEX_EXCLUDE** | not set | Regular expression defining which files will be excluded from linting (ex: `.*src/test.*`). Not setting this variable means to process all files. Jscpd and Checkov ignore this variable. Use their include and ignore features to select or ignore the files to lint. |
| **FILTER_REGEX_INCLUDE** | not set | Regular expression defining which files will be processed by linters (ex: `.*src/.*`). Not setting this variable means to process all files. `FILTER_REGEX_INCLUDE` is evaluated before `FILTER_REGEX_EXCLUDE`. Jscpd and Checkov ignore this variable. Use their include and ignore features to select or ignore the files to lint. |
| **FIX_ANSIBLE** | `false` | Option to enable fix mode for `ANSIBLE`. |
| **FIX_CLANG_FORMAT** | `false` | Option to enable fix mode for `CLANG_FORMAT`. |
| **FIX_CSHARP** | `false` | Option to enable fix mode for `CSHARP`. |
| **FIX_CSS_PRETTIER** | `true` | Flag to enable or disable the formatting of CSS, Sass, and SCSS files with Prettier. |
| **FIX_CSS** | `false` | Option to enable fix mode for `CSS`. |
| **FIX_DOTNET_SLN_FORMAT_ANALYZERS** | `false` | Option to enable or disable fix mode for Dotnet solutions. |
| **FIX_DOTNET_SLN_FORMAT_STYLE** | `false` | Option to enable or disable fix mode for Dotnet solutions. |
| **FIX_DOTNET_SLN_FORMAT_WHITESPACE** | `true` | Option to enable or disable fix mode for Dotnet solutions. |
| **FIX_ENV** | `false` | Option to enable fix mode for `ENV`. |
| **FIX_GO_MODULES** | `false` | Option to enable fix mode for `GO_MODULES`. |
| **FIX_GO** | `false` | Option to enable fix mode for `GO`. |
| **FIX_GOOGLE_JAVA_FORMAT** | `false` | Option to enable fix mode for `GOOGLE_JAVA_FORMAT`. |
| **FIX_GRAPHQL_PRETTIER** | `true` | Flag to enable or disable the formatting of GraphQL files with Prettier. |
| **FIX_GROOVY** | `false` | Option to enable fix mode for `GROOVY`. |
| **FIX_HTML_PRETTIER** | `true` | Flag to enable or disable the formatting of HTML files with Prettier. |
| **FIX_JAVASCRIPT_ES** | `false` | Option to enable fix mode for `JAVASCRIPT_ES`. |
| **FIX_JAVASCRIPT_PRETTIER** | `false` | Flag to enable or disable the formatting of JavaScript files with Prettier. |
| **FIX_JAVASCRIPT_STANDARD** | `false` | Option to enable fix mode for `JAVASCRIPT_STANDARD`. |
| **FIX_JSON_PRETTIER** | `true` | Flag to enable or disable the formatting of JSON files with Prettier. |
| **FIX_JSON** | `false` | Option to enable fix mode for `JSON`. |
| **FIX_JSONC** | `false` | Option to enable fix mode for `JSONC`. |
| **FIX_JSONC_PRETTIER** | `true` | Flag to enable or disable the formatting of JSONC and JSON5 files with Prettier. |
| **FIX_JSX_PRETTIER** | `true` | Flag to enable or disable the formatting of JSX files with Prettier. |
| **FIX_JSX** | `false` | Option to enable fix mode for `JSX`. |
| **FIX_MARKDOWN_PRETTIER** | `true` | Flag to enable or disable the formatting of Markdown files with Prettier. |
| **FIX_MARKDOWN** | `false` | Option to enable fix mode for `MARKDOWN`. |
| **FIX_POWERSHELL** | `false` | Option to enable fix mode for `POWERSHELL`. |
| **FIX_PROTOBUF** | `false` | Option to enable fix mode for `PROTOBUF`. |
| **FIX_PYTHON_BLACK** | `false` | Option to enable fix mode for `PYTHON_BLACK`. |
| **FIX_PYTHON_ISORT** | `false` | Option to enable fix mode for `PYTHON_ISORT`. |
| **FIX_PYTHON_PYINK** | `false` | Option to enable fix mode for `PYTHON_PYINK`. |
| **FIX_PYTHON_RUFF** | `false` | Option to enable fix mode for `PYTHON_RUFF`. |
| **FIX_RUBY** | `false` | Option to enable fix mode for `RUBY`. |
| **FIX_RUST_2015** | `false` | Option to enable fix mode for `RUST_2015`. |
| **FIX_RUST_2018** | `false` | Option to enable fix mode for `RUST_2018`. |
| **FIX_RUST_2021** | `false` | Option to enable fix mode for `RUST_2021`. |
| **FIX_RUST_CLIPPY** | `false` | Option to enable fix mode for `RUST_CLIPPY`. When `FIX_RUST_CLIPPY` is `true`, Clippy is allowed to fix issues in the workspace even if there are unstaged and staged changes in the workspace. |
| **FIX_SCALAFMT** | `false` | Option to enable fix mode for `SCALAFMT`. |
| **FIX_SHELL_SHFMT** | `false` | Option to enable fix mode for `SHELL_SHFMT`. |
| **FIX_SNAKEMAKE_SNAKEFMT** | `false` | Option to enable fix mode for `SNAKEMAKE_SNAKEFMT`. |
| **FIX_SQLFLUFF** | `false` | Option to enable fix mode for `SQLFLUFF`. |
| **FIX_TERRAFORM_FMT** | `false` | Option to enable fix mode for `TERRAFORM_FMT`. |
| **FIX_TSX** | `false` | Option to enable fix mode for `TSX`. |
| **FIX_TYPESCRIPT_ES** | `false` | Option to enable fix mode for `TYPESCRIPT_ES`. |
| **FIX_TYPESCRIPT_PRETTIER** | `false` | Flag to enable or disable the formatting of TypeScript files with Prettier. |
| **FIX_TYPESCRIPT_STANDARD** | `false` | Option to enable fix mode for `TYPESCRIPT_STANDARD`. |
| **FIX_VUE_PRETTIER** | `true` | Flag to enable or disable the formatting of Vue files with Prettier. |
| **FIX_YAML_PRETTIER** | `true` | Flag to enable or disable the formatting of YAML files with Prettier. |
| **GITHUB_ACTIONS_CONFIG_FILE** | `actionlint.yml` | Filename for [Actionlint configuration](https://github.com/rhysd/actionlint/blob/main/docs/config.md) (ex: `actionlint.yml`) |
| **GITHUB_ACTIONS_COMMAND_ARGS** | `null` | Additional arguments passed to `actionlint` command. Useful to [ignore some errors](https://github.com/rhysd/actionlint/blob/main/docs/usage.md#ignore-some-errors) |
| **GITHUB_CUSTOM_API_URL** | `https://api.${GITHUB_DOMAIN}` | Specify a custom GitHub API URL in case GitHub Enterprise is used: e.g. `https://github.myenterprise.com/api/v3` |
| **GITHUB_CUSTOM_SERVER_URL** | `https://${GITHUB_DOMAIN}"` | Specify a custom GitHub server URL. Useful for GitHub Enterprise instances. |
| **GITHUB_DOMAIN** | `github.com` | Specify a custom GitHub domain in case GitHub Enterprise is used: e.g. `github.myenterprise.com`. `GITHUB_DOMAIN` is a convenience configuration variable to automatically build `GITHUB_CUSTOM_API_URL` and `GITHUB_CUSTOM_SERVER_URL`. |
| **GITLEAKS_CONFIG_FILE** | `.gitleaks.toml` | Filename for [GitLeaks configuration](https://github.com/zricethezav/gitleaks#configuration) (ex: `.gitleaks.toml`) |
| **GITLEAKS_LOG_LEVEL** | Gitleaks default log level | Gitleaks log level. Defaults to the Gitleaks default log level. |
| **IGNORE_GENERATED_FILES** | `false` | If set to `true`, super-linter will ignore all the files with `@generated` marker but without `@not-generated` marker. Jscpd and Checkov ignore this variable. Use their include and ignore features to select or ignore the files to lint. |
| **IGNORE_GITIGNORED_FILES** | `false` | If set to `true`, super-linter will ignore all the files that are ignored by Git. Checkov ignores this variable. Use its include and ignore features to select or ignore the files to lint. |
| **JAVA_FILE_NAME** | `sun_checks.xml` | Filename for [Checkstyle configuration](https://checkstyle.sourceforge.io/config.html). Checkstyle embeds several configuration files, such as `sun_checks.xml`, `google_checks.xml` that you can use without providing your own configuration file. |
| **JAVASCRIPT_ES_CONFIG_FILE** | `.eslintrc.yml` | Filename for [ESLint configuration](https://eslint.org/docs/user-guide/configuring#configuration-file-formats) (ex: `.eslintrc.yml`, `.eslintrc.json`) |
| **JSCPD_CONFIG_FILE** | `.jscpd.json` | Filename for JSCPD configuration |
| **KUBERNETES_KUBECONFORM_OPTIONS** | `null` | Additional arguments to pass to the command-line when running **Kubernetes Kubeconform** (Example: --ignore-missing-schemas) |
| **LINTER_RULES_PATH** | `.github/linters` | Directory for all linter configuration rules. |
| **LOG_FILE** | `super-linter.log` | The filename for outputting logs. Super-linter saves the log file to `${DEFAULT_WORKSPACE}/${LOG_FILE}`. |
| **LOG_LEVEL** | `INFO` | How much output the script will generate to the console. One of `ERROR`, `WARN`, `NOTICE`, `INFO`, or `DEBUG`. |
| **MARKDOWN_CONFIG_FILE** | `.markdown-lint.yml` | Filename for [Markdownlint configuration](https://github.com/DavidAnson/markdownlint#optionsconfig) (ex: `.markdown-lint.yml`, `.markdownlint.json`, `.markdownlint.yaml`) |
| **MARKDOWN_CUSTOM_RULE_GLOBS** | not set | Comma-separated list of [file globs](https://github.com/igorshubovych/markdownlint-cli#globbing) matching [custom Markdownlint rule files](https://github.com/DavidAnson/markdownlint/blob/main/doc/CustomRules.md). |
| **MULTI_STATUS** | `true` | A status API is made for each language that is linted to make visual parsing easier. |
| **NATURAL_LANGUAGE_CONFIG_FILE** | `.textlintrc` | Filename for [textlint configuration](https://textlint.github.io/docs/getting-started.html#configuration) (ex: `.textlintrc`) |
| **PERL_PERLCRITIC_OPTIONS** | `null` | Additional arguments to pass to the command-line when running **perlcritic** (Example: --theme community) |
| **POWERSHELL_CONFIG_FILE** | `.powershell-psscriptanalyzer.psd1` | Filename for [PSScriptAnalyzer configuration](https://learn.microsoft.com/en-gb/powershell/utility-modules/psscriptanalyzer/using-scriptanalyzer) |
| **PHP_CONFIG_FILE** | `php.ini` | Filename for [PHP Configuration](https://www.php.net/manual/en/configuration.file.php) (ex: `php.ini`) |
| **PHP_PHPCS_FILE_NAME** | `phpcs.xml` | Filename for [PHP CodeSniffer](https://github.com/squizlabs/PHP_CodeSniffer) (ex: `.phpcs.xml`, `.phpcs.xml.dist`) |
| **PHP_PHPSTAN_CONFIG_FILE** | `phpstan.neon` | Filename for [PHPStan Configuration](https://phpstan.org/config-reference) (ex: `phpstan.neon`) |
| **PROTOBUF_CONFIG_FILE** | `.protolintrc.yml` | Filename for [protolint configuration](https://github.com/yoheimuta/protolint/blob/master/_example/config/.protolint.yaml) (ex: `.protolintrc.yml`) |
| **PYTHON_BLACK_CONFIG_FILE** | `.python-black` | Filename for [black configuration](https://github.com/psf/black/blob/main/docs/guides/using_black_with_other_tools.md#black-compatible-configurations) (ex: `.isort.cfg`, `pyproject.toml`) |
| **PYTHON_FLAKE8_CONFIG_FILE** | `.flake8` | Filename for [flake8 configuration](https://flake8.pycqa.org/en/latest/user/configuration.html) (ex: `.flake8`, `tox.ini`) |
| **PYTHON_ISORT_CONFIG_FILE** | `.isort.cfg` | Filename for [isort configuration](https://pycqa.github.io/isort/docs/configuration/config_files.html) (ex: `.isort.cfg`, `pyproject.toml`) |
| **PYTHON_MYPY_CONFIG_FILE** | `.mypy.ini` | Filename for [mypy configuration](https://mypy.readthedocs.io/en/stable/config_file.html) (ex: `.mypy.ini`, `setup.config`) |
| **PYTHON_PYINK_CONFIG_FILE** | `.python-pyink` | Filename for [pyink configuration](https://github.com/google/pyink?tab=readme-ov-file#how-do-i-use-pyink) (ex: `.isort.cfg`, `pyproject.toml`) |
| **PYTHON_PYLINT_CONFIG_FILE** | `.python-lint` | Filename for [pylint configuration](https://pylint.pycqa.org/en/latest/user_guide/run.html?highlight=rcfile#command-line-options) (ex: `.python-lint`, `.pylintrc`) |
| **PYTHON_RUFF_CONFIG_FILE** | `.ruff.toml` | Filename for [ruff configuration](https://docs.astral.sh/ruff/configuration/) |
| **RENOVATE_SHAREABLE_CONFIG_PRESET_FILE_NAMES** | not set | Comma-separated filenames for [renovate shareable config preset](https://docs.renovatebot.com/config-presets/) (ex: `default.json`) |
| **REMOVE_ANSI_COLOR_CODES_FROM_OUTPUT** | `false` | If set to `true`, Super-linter removes ANSI color codes from linters stdout and stderr files, and from the Super-linter log file. |
| **RUBY_CONFIG_FILE** | `.ruby-lint.yml` | Filename for [rubocop configuration](https://docs.rubocop.org/rubocop/configuration.html) (ex: `.ruby-lint.yml`, `.rubocop.yml`) |
| **RUST_CLIPPY_COMMAND_OPTIONS** | not set | Additional options and arguments to pass to the command when running Clippy. |
| **SAVE_SUPER_LINTER_OUTPUT** | `false` | If set to `true`, Super-linter will save its output in the workspace. For more information, see [Super-linter outputs](#super-linter-outputs). |
| **SAVE_SUPER_LINTER_SUMMARY** | `false` | If set to `true`, Super-linter will save a summary. For more information, see [Summary outputs](#summary-outputs). |
| **SCALAFMT_CONFIG_FILE** | `.scalafmt.conf` | Filename for [scalafmt configuration](https://scalameta.org/scalafmt/docs/configuration.html) (ex: `.scalafmt.conf`) |
| **SNAKEMAKE_SNAKEFMT_CONFIG_FILE** | `.snakefmt.toml` | Filename for [Snakemake configuration](https://github.com/snakemake/snakefmt#configuration) (ex: `pyproject.toml`, `.snakefmt.toml`) |
| **SSL_CERT_SECRET** | `none` | SSL cert to add to the **Super-Linter** trust store. This is needed for users on `self-hosted` runners or need to inject the cert for security standards (ex. ${{ secrets.SSL_CERT }}) |
| **SSH_KEY** | `none` | SSH key that has access to your private repositories |
| **SSH_SETUP_GITHUB** | `false` | If set to `true`, adds the `github.com` SSH key to `known_hosts`. This is ignored if `SSH_KEY` is provided - i.e. the `github.com` SSH key is always added if `SSH_KEY` is provided |
| **SSH_INSECURE_NO_VERIFY_GITHUB_KEY** | `false` | **INSECURE -** If set to `true`, does not verify the fingerprint of the github.com SSH key before adding this. This is not recommended! |
| **SQLFLUFF_CONFIG_FILE** | `/.sqlfluff` | Filename for [SQLFLUFF configuration](https://docs.sqlfluff.com/en/stable/configuration.html) (ex: `/.sqlfluff`, `pyproject.toml`) |
| **SUPER_LINTER_OUTPUT_DIRECTORY_NAME** | `super-linter-output` | Name of the directory where super-linter saves its output. |
| **SUPER_LINTER_SUMMARY_FILE_NAME** | `super-linter-summary.md` | Name of the file where to save the summary output. For more information, see [Summary outputs](#summary-outputs). |
| **SUPPRESS_FILE_TYPE_WARN** | `false` | If set to `true`, will hide warning messages about files without their proper extensions. Default is `false` |
| **SUPPRESS_POSSUM** | `false` | If set to `true`, will hide the ASCII possum at top of log output. Default is `false` |
| **TERRAFORM_TERRASCAN_CONFIG_FILE** | `terrascan.toml` | Filename for [terrascan configuration](https://github.com/accurics/terrascan) (ex: `terrascan.toml`) |
| **TERRAFORM_TFLINT_CONFIG_FILE** | `.tflint.hcl` | Filename for [tfLint configuration](https://github.com/terraform-linters/tflint) (ex: `.tflint.hcl`) |
| **TYPESCRIPT_ES_CONFIG_FILE** | `.eslintrc.yml` | Filename for [ESLint configuration](https://eslint.org/docs/user-guide/configuring#configuration-file-formats) (ex: `.eslintrc.yml`, `.eslintrc.json`) |
| **TYPESCRIPT_STANDARD_TSCONFIG_FILE** | `${DEFAULT_WORKSPACE}/tsconfig.json` | Path to the [TypeScript project configuration](https://www.typescriptlang.org/docs/handbook/tsconfig-json.html) in [ts-standard](https://github.com/standard/ts-standard). The path is relative to `DEFAULT_WORKSPACE` |
| **USE_FIND_ALGORITHM** | `false` | By default, we use `git diff` to find all files in the workspace and what has been updated, this would enable the Linux `find` method instead to find all files to lint |
| **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_ANSIBLE** | `true` | Flag to enable or disable the linting process of the Ansible language. |
| **VALIDATE_ARM** | `true` | Flag to enable or disable the linting process of the ARM language. |
| **VALIDATE_BASH** | `true` | Flag to enable or disable the linting process of the Bash language. |
| **VALIDATE_BASH_EXEC** | `true` | Flag to enable or disable the linting process of the Bash language to validate if file is stored as executable. |
| **VALIDATE_CPP** | `true` | Flag to enable or disable the linting process of the C++ language. |
| **VALIDATE_CHECKOV** | `true` | Flag to enable or disable the linting process with Checkov |
| **VALIDATE_CLANG_FORMAT** | `true` | Flag to enable or disable the linting process of the C++/C language with clang-format. |
| **VALIDATE_CLOJURE** | `true` | Flag to enable or disable the linting process of the Clojure language. |
| **VALIDATE_CLOUDFORMATION** | `true` | Flag to enable or disable the linting process of the AWS Cloud Formation language. |
| **VALIDATE_COFFEESCRIPT** | `true` | Flag to enable or disable the linting process of the CoffeeScript language. |
| **VALIDATE_CSHARP** | `true` | Flag to enable or disable the linting process of the C# language. |
| **VALIDATE_CSS** | `true` | Flag to enable or disable the linting process of the CSS, Sass, and SCSS files. |
| **VALIDATE_CSS_PRETTIER** | `true` | Flag to enable or disable checking the formatting of CSS, Sass, and SCSS files with Prettier. |
| **VALIDATE_DART** | `true` | Flag to enable or disable the linting process of the Dart language. |
| **VALIDATE_DOCKERFILE_HADOLINT** | `true` | Flag to enable or disable the linting process of the Docker language. |
| **VALIDATE_DOTNET_SLN_FORMAT_ANALYZERS** | `true` | Option to enable or disable the linting process of Dotnet solutions. |
| **VALIDATE_DOTNET_SLN_FORMAT_STYLE** | `true` | Option to enable or disable the linting process of Dotnet solutions. |
| **VALIDATE_DOTNET_SLN_FORMAT_WHITESPACE** | `true` | Option to enable or disable the linting process of Dotnet solutions. |
| **VALIDATE_EDITORCONFIG** | `true` | Flag to enable or disable the linting process with the EditorConfig. |
| **VALIDATE_ENV** | `true` | Flag to enable or disable the linting process of the ENV language. |
| **VALIDATE_GHERKIN** | `true` | Flag to enable or disable the linting process of the Gherkin language. |
| **VALIDATE_GIT_COMMITLINT** | `true` | Option to enable or disable the linting process of Git commits with commitlint. commitlint needs a configuration file to work. Also, see the `ENFORCE_COMMITLINT_CONFIGURATION_CHECK` and the `ENABLE_COMMITLINT_STRICT_MODE` variables. |
| **VALIDATE_GIT_MERGE_CONFLICT_MARKERS** | `true` | Option to enable or disable checking if files contain Git merge conflict markers. |
| **VALIDATE_GITHUB_ACTIONS** | `true` | Flag to enable or disable the linting process of the GitHub Actions. |
| **VALIDATE_GITLEAKS** | `true` | Flag to enable or disable the linting process of the secrets. |
| **VALIDATE_GO** | `true` | Flag to enable or disable the linting process of the individual Golang files. Set this to `false` if you want to lint Go modules. See the `VALIDATE_GO_MODULES` variable. |
| **VALIDATE_GO_MODULES** | `true` | Flag to enable or disable the linting process of Go modules. Super-linter considers a directory to be a Go module if it contains a file named`go.mod`. |
| **VALIDATE_GO_RELEASER** | `true` | Flag to enable or disable the linting process of the GoReleaser config file. |
| **VALIDATE_GRAPHQL_PRETTIER** | `true` | Flag to enable or disable checking the formatting of GraphQL files with Prettier. |
| **VALIDATE_GOOGLE_JAVA_FORMAT** | `true` | Flag to enable or disable the linting process of the Java language. (Utilizing: google-java-format) |
| **VALIDATE_GROOVY** | `true` | Flag to enable or disable the linting process of the language. |
| **VALIDATE_HTML** | `true` | Flag to enable or disable the linting process of the HTML language. |
| **VALIDATE_HTML_PRETTIER** | `true` | Flag to enable or disable checking the formatting of HTML files with Prettier. |
| **VALIDATE_JAVA** | `true` | Flag to enable or disable the linting process of the Java language. (Utilizing: checkstyle) |
| **VALIDATE_JAVASCRIPT_ES** | `true` | Flag to enable or disable the linting process of the JavaScript language. (Utilizing: ESLint) |
| **VALIDATE_JAVASCRIPT_PRETTIER** | `true` | Flag to enable or disable checking the formatting of JavaScript files with Prettier. |
| **VALIDATE_JAVASCRIPT_STANDARD** | `true` | Flag to enable or disable the linting process of the JavaScript language. (Utilizing: standard) |
| **VALIDATE_JSCPD** | `true` | Flag to enable or disable JSCPD. |
| **VALIDATE_JSON** | `true` | Flag to enable or disable the linting process of the JSON language. |
| **VALIDATE_JSON_PRETTIER** | `true` | Flag to enable or disable checking the formatting of JSON files with Prettier. |
| **VALIDATE_JSONC** | `true` | Flag to enable or disable the linting process of the JSONC and JSON5 languages. |
| **VALIDATE_JSONC_PRETTIER** | `true` | Flag to enable or disable checking the formatting of JSONC and JSON5 files with Prettier. |
| **VALIDATE_JSX** | `true` | Flag to enable or disable the linting process for jsx files (Utilizing: ESLint) |
| **VALIDATE_JSX_PRETTIER** | `true` | Flag to enable or disable checking the formatting of JSX files with Prettier. |
| **VALIDATE_KOTLIN** | `true` | Flag to enable or disable the linting process of the Kotlin language. |
| **VALIDATE_KUBERNETES_KUBECONFORM** | `true` | Flag to enable or disable the linting process of Kubernetes descriptors with Kubeconform |
| **VALIDATE_LATEX** | `true` | Flag to enable or disable the linting process of the LaTeX language. |
| **VALIDATE_LUA** | `true` | Flag to enable or disable the linting process of the language. |
| **VALIDATE_MARKDOWN** | `true` | Flag to enable or disable the linting process of the Markdown language. |
| **VALIDATE_MARKDOWN_PRETTIER** | `true` | Flag to enable or disable checking the formatting of Markdown files with Prettier. |
| **VALIDATE_NATURAL_LANGUAGE** | `true` | Flag to enable or disable the linting process of the natural language. |
| **VALIDATE_OPENAPI** | `true` | Flag to enable or disable the linting process of the OpenAPI language. |
| **VALIDATE_PERL** | `true` | Flag to enable or disable the linting process of the Perl language. |
| **VALIDATE_PHP** | `true` | Flag to enable or disable the linting process of the PHP language. (Utilizing: PHP built-in linter) (keep for backward compatibility) |
| **VALIDATE_PHP_BUILTIN** | `true` | Flag to enable or disable the linting process of the PHP language. (Utilizing: PHP built-in linter) |
| **VALIDATE_PHP_PHPCS** | `true` | Flag to enable or disable the linting process of the PHP language. (Utilizing: PHP CodeSniffer) |
| **VALIDATE_PHP_PHPSTAN** | `true` | Flag to enable or disable the linting process of the PHP language. (Utilizing: PHPStan) |
| **VALIDATE_PHP_PSALM** | `true` | Flag to enable or disable the linting process of the PHP language. (Utilizing: PSalm) |
| **VALIDATE_POWERSHELL** | `true` | Flag to enable or disable the linting process of the Powershell language. |
| **VALIDATE_PROTOBUF** | `true` | Flag to enable or disable the linting process of the Protobuf language. |
| **VALIDATE_PYTHON** | `true` | Flag to enable or disable the linting process of the Python language. (Utilizing: pylint) (keep for backward compatibility) |
| **VALIDATE_PYTHON_BLACK** | `true` | Flag to enable or disable the linting process of the Python language. (Utilizing: black) |
| **VALIDATE_PYTHON_FLAKE8** | `true` | Flag to enable or disable the linting process of the Python language. (Utilizing: flake8) |
| **VALIDATE_PYTHON_ISORT** | `true` | Flag to enable or disable the linting process of the Python language. (Utilizing: isort) |
| **VALIDATE_PYTHON_MYPY** | `true` | Flag to enable or disable the linting process of the Python language. (Utilizing: mypy) |
| **VALIDATE_PYTHON_PYINK** | `true` | Flag to enable or disable the linting process of the Python language. (Utilizing: pyink) |
| **VALIDATE_PYTHON_PYLINT** | `true` | Flag to enable or disable the linting process of the Python language. (Utilizing: pylint) |
| **VALIDATE_PYTHON_RUFF** | `true` | Flag to enable or disable the linting process of the Python language. (Utilizing: ruff) |
| **VALIDATE_R** | `true` | Flag to enable or disable the linting process of the R language. |
| **VALIDATE_RAKU** | `true` | Flag to enable or disable the linting process of the Raku language. |
| **VALIDATE_RENOVATE** | `true` | Flag to enable or disable the linting process of the Renovate configuration files. |
| **VALIDATE_RUBY** | `true` | Flag to enable or disable the linting process of the Ruby language. |
| **VALIDATE_RUST_2015** | `true` | Flag to enable or disable the linting process of the Rust language. (edition: 2015) |
| **VALIDATE_RUST_2018** | `true` | Flag to enable or disable the linting process of Rust language. (edition: 2018) |
| **VALIDATE_RUST_2021** | `true` | Flag to enable or disable the linting process of Rust language. (edition: 2021) |
| **VALIDATE_RUST_CLIPPY** | `true` | Flag to enable or disable the clippy linting process of Rust language. |
| **VALIDATE_SCALAFMT** | `true` | Flag to enable or disable the linting process of Scala language. (Utilizing: scalafmt --test) |
| **VALIDATE_SHELL_SHFMT** | `true` | Flag to enable or disable the linting process of Shell scripts. (Utilizing: shfmt) |
| **VALIDATE_SNAKEMAKE_LINT** | `true` | Flag to enable or disable the linting process of Snakefiles. (Utilizing: snakemake --lint) |
| **VALIDATE_SNAKEMAKE_SNAKEFMT** | `true` | Flag to enable or disable the linting process of Snakefiles. (Utilizing: snakefmt) |
| **VALIDATE_STATES** | `true` | Flag to enable or disable the linting process for AWS States Language. |
| **VALIDATE_SQLFLUFF** | `true` | Flag to enable or disable the linting process of the SQL language. (Utilizing: sqlfuff) |
| **VALIDATE_TEKTON** | `true` | Flag to enable or disable the linting process of the Tekton language. |
| **VALIDATE_TERRAFORM_FMT** | `true` | Flag to enable or disable checking the formatting process of the Terraform files. |
| **VALIDATE_TERRAFORM_TERRASCAN** | `true` | Flag to enable or disable the linting process of the Terraform language for security related issues. |
| **VALIDATE_TERRAFORM_TFLINT** | `true` | Flag to enable or disable the linting process of the Terraform language. (Utilizing tflint) |
| **VALIDATE_TERRAGRUNT** | `true` | Flag to enable or disable the linting process for Terragrunt files. |
| **VALIDATE_TSX** | `true` | Flag to enable or disable the linting process for tsx files (Utilizing: ESLint) |
| **VALIDATE_TYPESCRIPT_ES** | `true` | Flag to enable or disable the linting process of the TypeScript language. (Utilizing: ESLint) |
| **VALIDATE_TYPESCRIPT_PRETTIER** | `true` | Flag to enable or disable checking the formatting of TypeScript files with Prettier. |
| **VALIDATE_TYPESCRIPT_STANDARD** | `true` | Flag to enable or disable the linting process of the TypeScript language. (Utilizing: ts-standard) |
| **VALIDATE_VUE_PRETTIER** | `true` | Flag to enable or disable checking the formatting of Vue files with Prettier. |
| **VALIDATE_XML** | `true` | Flag to enable or disable the linting process of the XML language. |
| **VALIDATE_YAML** | `true` | Flag to enable or disable the linting process of the YAML language. |
| **VALIDATE_YAML_PRETTIER** | `true` | Flag to enable or disable checking the formatting of YAML files with Prettier. |
| **YAML_CONFIG_FILE** | `.yaml-lint.yml` | Filename for [Yamllint configuration](https://yamllint.readthedocs.io/en/stable/configuration.html) (ex:`.yaml-lint.yml`, `.yamllint.yml`) |
| **YAML_ERROR_ON_WARNING** | `false` | Flag to enable or disable the error on warning for Yamllint. |
The `VALIDATE_[LANGUAGE]` variables work as follows:
- super-linter runs all supported linters by default.
- If you set any of the `VALIDATE_[LANGUAGE]` variables to `true`, super-linter
defaults to leaving any unset variable to false (only validate those
languages).
- If you set any of the `VALIDATE_[LANGUAGE]` variables to `false`, super-linter
defaults to leaving any unset variable to true (only exclude those languages).
- If you set any of the `VALIDATE_[LANGUAGE]` variables to both `true` and
`false`, super-linter fails reporting an error.
For more information about reusing Super-linter configuration across
environments, see
[Share Environment variables between environments](docs/run-linter-locally.md#share-environment-variables-between-environments).
## Fix linting and formatting issues
All the linters and formatters that Super-linter runs report errors if they
detect linting or formatting issues without modifying your source code (_check
only mode_). Check only mode is the default for all linters and formatters that
Super-linter runs.
Certain linters and formatters support automatically fixing issues in your code
(_fix mode_). You can enable fix mode for a particular linter or formatter by
setting the relevant `FIX_<language name>` variable to `true`. To know which
linters and formatters support fix mode, refer to the
[Configure Super-linter section](#configure-super-linter).
Setting a `FIX_<language name>` variable to `true` implies setting the
corresponding `VALIDATE_<language name>` to `true`. Setting a
`FIX_<language name>` variable to `true` and the corresponding
`VALIDATE_<language name>` to `false` is a configuration error. Super-linter
reports that as a fatal error.
Super-linter supports the following locations to deliver fixes:
- In the current Super-linter workspace, so you can process the changes to your
files by yourself. For example:
- If you're running Super-linter in your CI environment, such as GitHub
Actions, you can commit and push changes as part of your workflow.
- If you're running Super-linter locally, you can commit the changes as you
would with any other change in your working directory.
### Fix mode for ansible-lint
ansible-lint requires that the `yaml` rule is enabled to for the ansible-lint
fix mode to work. The default ansible-lint configuration that Super-linter ships
disables the `yaml` rule because it might not be compatible with yamllint. If
you need to enable the ansible-lint fix mode, provide an ansible-lint
configuration that doesn't ignore the `yaml` rule.
### Fix mode file and directory ownership
When fix mode is enabled, some linters and formatters don't maintain the
original file or directory ownership, and use the user that Super-linter uses to
run the linter or formatter.
### Fix mode examples and workflows
You can configure Super-linter to automatically deliver linting and formatting
fixes. For example, you can configure a workflow that automatically commits the
fixes, and pushes them to a branch.
To ensure that Super-linter analyzes your codebase as expected, we recommend
that you configure your fix mode workflows in addition to your existing
Super-linter workflows.
#### GitHub Actions workflow example: pull request
The following example shows a GitHub Actions workflow that uses Super-linter to
automatically fix linting and formatting issues, commit changes in the current
branch, and push commits to the remote branch tracking the current branch
whenever a pull request is created or updated:
<!-- prettier-ignore-start -->
```yaml
---
name: Lint
on: # yamllint disable-line rule:truthy
push: null
pull_request: null
permissions:
contents: read
jobs:
lint:
# Super-linter workflow running in check only mode
# See https://github.com/super-linter/super-linter#get-started
fix-lint-issues:
permissions:
# To write linting fixes
contents: write
# To write Super-linter status checks
statuses: write
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0
- name: Super-Linter
uses: super-linter/super-linter@v7.2.0 # x-release-please-version
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
# Set your fix mode variables to true
FIX_SHELL_SHFMT: true
FIX_YAML_PRETTIER: true
# To reuse the same Super-linter configuration that you use in the
# lint job without duplicating it, see
# https://github.com/super-linter/super-linter/blob/main/docs/run-linter-locally.md#share-environment-variables-between-environments
- name: Commit and push linting fixes
# Run only on:
# - Pull requests
# - Not on the default branch
if: >
github.event_name == 'pull_request' &&
github.ref_name != github.event.repository.default_branch
uses: stefanzweifel/git-auto-commit-action@v5
with:
branch: ${{ github.event.pull_request.head.ref || github.head_ref || github.ref }}
commit_message: "chore: fix linting issues"
commit_user_name: super-linter
commit_user_email: super-linter@super-linter.dev
```
<!-- prettier-ignore-end -->
This example uses
[GitHub Actions automatic token authentication](https://docs.github.com/en/actions/security-for-github-actions/security-guides/automatic-token-authentication)
that automatically greates a unique `GITHUB_TOKEN` secret for the workflow.
GitHub Actions imposes the following limitations on workflows:
- To avoid accidentally creating recursive workflow runs, the commit that
contains linting and formatting fixes
[doesn't create new workflow runs](https://docs.github.com/en/actions/security-for-github-actions/security-guides/automatic-token-authentication#using-the-github_token-in-a-workflow).
- It restrict edits to GitHub Actions workflows files (in `.github/workflows`).
- It may fail pushing commits to protected branches.
To work around these limitations, you do the following:
1. [Create an authentication token with additional permissions](https://docs.github.com/en/actions/security-for-github-actions/security-guides/automatic-token-authentication#granting-additional-permissions).
1. Grant the authentication token the
[`repo` and `workflow` permissions](https://docs.github.com/en/rest/authentication/permissions-required-for-fine-grained-personal-access-tokens).
1. Use the authentication token in the `actions/checkout` step:
```yaml
- uses: actions/checkout@v4
with:
fetch-depth: 0
token: ${{ secrets.SUPER_LINTER_TOKEN }}
```
This example assumes that you saved the authentication token in a secret
called `SUPER_LINTER_TOKEN`, but you can choose whatever name you prefer for
the secret.
## Configure linters
Super-linter provides default configurations for some linters in the
[`TEMPLATES/`](./TEMPLATES/) directory. You can customize the configuration for
the linters that support this by placing your own configuration files in the
`LINTER_RULES_PATH` directory. `LINTER_RULES_PATH` is relative to the
`DEFAULT_WORKSPACE` directory.
Super-linter supports customizing the name of these configuration files. For
more information, refer to [Configure super-linter](#configure-super-linter).
For example, you can configure super-linter to load configuration files from the
`config/lint` directory in your repository:
```yaml
env:
LINTER_RULES_PATH: config/lint
```
Some of the linters that super-linter provides can be configured to disable
certain rules or checks, and to ignore certain files or part of them.
For more information about how to configure each linter, review
[their own documentation](#supported-linters-and-code-analyzers).
## Include or exclude files from checks
If you need to include or exclude directories from being checked, you can use
two environment variables: `FILTER_REGEX_INCLUDE` and `FILTER_REGEX_EXCLUDE`.
For example:
- Lint the `src` folder in the root of the repository:
`FILTER_REGEX_INCLUDE: ^src/`
- Lint all `src` folders in the repository: `FILTER_REGEX_INCLUDE: (^|/)src/`
- Do not lint files inside `test` folder in the root of the repository:
`FILTER_REGEX_EXCLUDE: ^test/`
- Do not lint files inside all `test` folders in the repository:
`FILTER_REGEX_EXCLUDE: (^|/)test/`
- Do not lint JavaScript files inside `test` folder in the root of the
repository: `FILTER_REGEX_EXCLUDE: ^test/[^/]+\.js$`
- Do not lint JavaScript files inside `test` folder in the root of the
repository (recursively): `FILTER_REGEX_EXCLUDE: ^test/.+\.js$`
- Do not lint files named `gradlew` and JavaScript files inside a specific
directory:
`FILTER_REGEX_EXCLUDE: ((^|/)gradlew|^specific/directory/[^/]+\.js)$`
<!-- This `README.md` has both markers in the text, so it is considered not generated. -->
Additionally, if you set `IGNORE_GENERATED_FILES` to `true`, super-linter
ignores any file with `@generated` string in it, unless the file also has
`@not-generated` marker. For example, super-linter considers a file with the
following contents as generated:
```bash
#!/bin/sh
echo "@generated"
```
while considers this file as not generated:
```bash
#!/bin/sh
echo "@generated" # @not-generated
```
Finally, you can set `IGNORE_GITIGNORED_FILES` to `true` to ignore a file if Git
ignores it too.
## Run Super-Linter outside GitHub Actions
You don't need GitHub Actions to run super-linter. It supports several runtime
environments.
### Run using a container runtime engine
You can run super-linter outside GitHub Actions. For example, you can run
super-linter from a shell:
```bash
docker run \
-e LOG_LEVEL=DEBUG \
-e RUN_LOCAL=true \
-v /path/to/local/codebase:/tmp/lint \
ghcr.io/super-linter/super-linter:latest
```
For more information, see
[Run super-linter outside GitHub Actions](https://github.com/super-linter/super-linter/blob/main/docs/run-linter-locally.md).
## Use your own SSH key and certificate
If you need to use your own SSH key to authenticate against private
repositories, you can use the `SSH_KEY` environment variable. The value of that
environment variable is expected to be the private key of an SSH keypair that
has access to your private repositories.
For example, you can configure this private key as an
[Encrypted Secret](https://docs.github.com/en/actions/security-guides/encrypted-secrets)
and access it with the `secrets` parameter from your GitHub Actions workflow:
```yaml
env:
SSH_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
```
If you need to inject a SSL certificate into the trust store, you can use the
`SSL_CERT_SECRET` variable. The value of that variable is expected to be the
path to the files that contains a CA that can be used to validate the
certificate:
```yaml
env:
SSL_CERT_SECRET: ${{ secrets.ROOT_CA }}
```
## Outputs
Super-linter supports generating several outputs, and also supports exposing the
output of individual linters.
### Summary outputs
Super-linter writes a summary of all the checks:
- If `SAVE_SUPER_LINTER_SUMMARY` is set to `true`, Super-linter writes a summary
to
`${DEFAULT_WORKSPACE}/${SUPER_LINTER_OUTPUT_DIRECTORY_NAME}/${SUPER_LINTER_SUMMARY_FILE_NAME}`.
- If `ENABLE_GITHUB_ACTIONS_STEP_SUMMARY` is set to `true`, Super-linter writes
a GitHub Actions job summary. Setting `ENABLE_GITHUB_ACTIONS_STEP_SUMMARY` to
`true`, implies setting `SAVE_SUPER_LINTER_SUMMARY` to `true`.
The summary is in Markdown format. Super-linter supports the following formats:
- Table (default)
The summary output of previous Super-linter runs is not preserved.
### Super-linter outputs
If you set `SAVE_SUPER_LINTER_OUTPUT` to `true`, Super-linter saves its output
to `${DEFAULT_WORKSPACE}/${SUPER_LINTER_OUTPUT_DIRECTORY_NAME}/super-linter`, so
you can further process it, if needed.
Most outputs are in JSON format.
The output of previous Super-linter runs is not preserved.
### Linter reports and outputs
Some linters support configuring the format of their outputs for further
processing. To get access to that output, enable it using the respective linter
configuration file. If a linter requires a path for the output directory, you
can use the value of the `${DEFAULT_WORKSPACE}` variable.
If a linter doesn't support setting an arbitrary output path as described in the
previous paragraph, but only supports emitting results to standard output or
standard error streams, you can
[enable Super-linter outputs](#super-linter-outputs) and parse them.
### Ignore output that Super-linter generates
Super-linter generates output reports and logs. To avoid that these outputs end
up in your repository, we recommend that you add the following lines to your
`.gitignore` file:
```text
# Super-linter outputs
super-linter-output
super-linter.log
# GitHub Actions leftovers
github_conf
```
## How to contribute
If you would like to help contribute to super-linter, see
[CONTRIBUTING](https://github.com/super-linter/super-linter/blob/main/.github/CONTRIBUTING.md).
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