name: Mixin

# The runbook check in "mise run test" reads docs/runbooks, so runbook
# changes run this workflow too.
on:
  pull_request:
    paths:
      - contrib/mixin/**
      - contrib/dashboard/*.json
      - contrib/monitoring/*.yaml
      - docs/collector.*.md
      - docs/runbooks/**
      - docs/upgrade/**
      - docs/README.md
      - README.md
      - internal/metriccontract/**
      - .github/workflows/mixin.yml
  push:
    branches:
      - master
      - next
      - main
    paths:
      - contrib/mixin/**
      - contrib/dashboard/*.json
      - contrib/monitoring/*.yaml
      - docs/collector.*.md
      - docs/runbooks/**
      - docs/upgrade/**
      - docs/README.md
      - README.md
      - internal/metriccontract/**
      - .github/workflows/mixin.yml
  workflow_dispatch:

permissions: {}

concurrency:
  group: mixin-${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  rules:
    name: Validate mixin rules and dashboard
    runs-on: ubuntu-26.04
    timeout-minutes: 15
    permissions:
      contents: read
    defaults:
      run:
        working-directory: contrib/mixin
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: 'false'

      - uses: actions/setup-go@b7ad1dad31e06c5925ef5d2fc7ad053ef454303e # v7.0.0
        with:
          go-version-file: go.mod

      - name: Install and cache pinned mixin tools
        uses: jdx/mise-action@9b200bcecbfd6303e69a4a261b2e09e3757440a7 # v5.2.0
        with:
          working_directory: contrib/mixin

      - name: Build dashboard and check generated changes
        run: mise run check-dashboards

      - name: Generate rules and check generated changes
        run: mise run check-rules

      - name: Lint dashboard and test rules
        run: mise run test

      # Runs on Linux: the test reads the Go sources and builds no collector.
      - name: Check metric references
        working-directory: .
        run: go test -count=1 ./internal/metriccontract/