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124 lines
3.2 KiB
Markdown
124 lines
3.2 KiB
Markdown
# markdownlint-cli2-action
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> A GitHub Action to run the [`markdownlint-cli2`][markdownlint-cli2] tool for
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linting [Markdown][markdown]/[CommonMark][commonmark] files with
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[`markdownlint`][markdownlint]
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`markdownlint-cli2` has extensive support for configuring options and disabling
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or customizing `markdownlint` rules. See the
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[`markdownlint-cli2` README][markdownlint-cli2] for more information.
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`markdownlint` includes a wide variety of rules for analyzing and improving
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Markdown content. See the [`markdownlint` README][markdownlint] for more
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information.
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## Inputs
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### config (optional)
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Path of a file to use for the base configuration object (defaults to none)
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Equivalent to using the `--config` [command-line option][command-line] and
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passing the specified configuration file.
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### fix (optional)
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Whether to fix supported issues automatically (any truthy value enables)
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Equivalent to specifying the `--fix` [command-line option][command-line].
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### globs (optional)
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Glob expression(s) of files to lint (newline-delimited by default)
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The default `*.{md,markdown}` lints all Markdown files in the base directory of
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a project.
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For more detail: [glob syntax in `markdownlint-cli2`][glob-syntax].
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### separator (optional)
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String to use as a separator for the `globs` input (defaults to newline)
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Allows the `globs` input to use something other than `\n` to separate glob
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expressions.
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## Outputs
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[None]
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## Examples
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To lint Markdown files in the base directory of a project:
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```yaml
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- uses: DavidAnson/markdownlint-cli2-action@v18
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```
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To lint all Markdown files in a project:
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```yaml
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- uses: DavidAnson/markdownlint-cli2-action@v18
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with:
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globs: '**/*.md'
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```
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To lint specific Markdown files in a project:
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```yaml
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- uses: DavidAnson/markdownlint-cli2-action@v18
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with:
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globs: |
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README.md
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CHANGELOG.md
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docs/*.md
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```
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To use a custom separator:
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```yaml
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- uses: DavidAnson/markdownlint-cli2-action@v18
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with:
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globs: 'README.md,CHANGELOG.md,docs/*.md'
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separator: ','
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```
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To fix supported issues when linting:
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```yaml
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- uses: DavidAnson/markdownlint-cli2-action@v18
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with:
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fix: true
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globs: '**/*.md'
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```
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To specify a custom configuration file:
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```yaml
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- uses: DavidAnson/markdownlint-cli2-action@v18
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with:
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config: 'config/custom.markdownlint.jsonc'
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globs: '**/*.md'
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```
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To prevent linting issues from failing the workflow run:
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```yaml
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- uses: DavidAnson/markdownlint-cli2-action@v18
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continue-on-error: true
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```
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See [`example.yml`][example-yml] for a simple GitHub workflow that uses
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`markdownlint-cli2-action`.
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See [`changed.yml`][changed-yml] for a GitHub workflow that lints only the
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Markdown files that changed in the most recent commit (useful for Pull Requests
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and/or gradually introducing linting rules to a new repository).
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[changed-yml]: .github/workflows/changed.yml
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[command-line]: https://github.com/DavidAnson/markdownlint-cli2#command-line
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[commonmark]: https://commonmark.org/
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[example-yml]: .github/workflows/example.yml
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[glob-syntax]: https://github.com/DavidAnson/markdownlint-cli2#use
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[markdown]: https://wikipedia.org/wiki/Markdown
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[markdownlint]: https://github.com/DavidAnson/markdownlint
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[markdownlint-cli2]: https://github.com/DavidAnson/markdownlint-cli2
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