This action will run pint to validate Prometheus rules. It will run pint ci for pull requests and pint lint for merges.

Github token to use when reporting problems on the pull request. Required, no default.

Directory to run check against on pushes (for example after a merge). To set directories tested when running checks on a pull request please create a config file for pint and set ci { include = [...] } option. See pint docs for details. Default is ".".

Config file to use. Default is "", meaning no --config flag will be passed to pint and it will use defaults.

Log level for pint. Default is "", meaning no --log-level flag will be passed to pint and it will use defaults.

Minimum severity reported by the lint command. Default is "", meaning no --min-severity flag will be passed to pint and it will use defaults.

Available options : info, warning (lint default), bug fatal.

If set to any non-empty string pint will be run with --require-owner flag. Passing this flag will require all rule files or individual rules to have owner set via comment.

Validating PRs require full git history and so actions/checkout must be used with fetch-depth: 0 option.

Be sure to use a token with write access to the pull-requests scope.

name: pint

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

permissions:
  pull-requests: write

jobs:
  pint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Run pint
        uses: prymitive/pint-action@v1
        with:
          token: ${{ github.token }}
          workdir: 'rules'
          requireOwner: 'true'

It is possible to use Pint with pull requests originating from forked repositories. There is some additional configuration. An example configuration could look like:

name: pint

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

permissions:
  pull-requests: write

jobs:
  pint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0
          ref: ${{ github.event.pull_request.head.sha }} # REQUIRED FOR PRs FROM FORKS | https://github.com/actions/checkout/issues/124#issuecomment-586664611

      - name: Run pint
        uses: prymitive/pint-action@v1
        with:
          token: ${{ github.token }}
          workdir: 'rules'
          requireOwner: 'true'
          pr_target_repo: ${{ github.event.pull_request.base.repo.full_name }} # REQUIRED FOR PRs FROM FORKS
          pr_source_repo: ${{ github.event.pull_request.head.repo.full_name }} # REQUIRED FOR PRs FROM FORKS

Some caveats:

• The pull_requests permission will not be granted "write" access for pull request from public forks. This is a GitHub limitation.
• pr_target_repo and pr_source_repo must both be set to the variables indicated
• actions/checkout@v3 must be set with ref: ${{ github.event.pull_request.head.sha }}

The only work around to get pull-requests: write permission on the default GITHUB_TOKEN is to make your repository private. For example, this can work well in a Github Enterprise environment. Github has chosen to set "Maximum access for pull requests from public forked repositories" to "read" on every single token scope.

Once your repository is private, you can set Send write tokens to workflows from fork pull requests or Send secrets and variables to workflows from fork pull requests under the Actions settings menu.