CodeQL workflow (ampproject/amphtml)

The CodeQL workflow from ampproject/amphtml, explained and optimized by Latchkey.

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Source: ampproject/amphtml.github/workflows/codeql.ymlLicense Apache-2.0View source

What it does

This is the CodeQL workflow from the ampproject/amphtml repository, a real project running GitHub Actions. It is shown here with attribution under its Apache-2.0 license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

The workflow

workflow (.yml)

name: 'CodeQL'

on:
  push:
    branches: ['main']
  pull_request:
    # The branches below must be a subset of the branches above
    branches: ['main']
  schedule:
    - cron: '0 0 * * 1'

permissions:
  contents: read

jobs:
  analyze:
    name: Analyze
    runs-on: ubuntu-latest
    permissions:
      actions: read
      contents: read
      security-events: write

    strategy:
      fail-fast: false
      matrix:
        # TODO: add `cpp` for Validator; don't forget to add a build step
        language: ['go', 'javascript', 'python', 'typescript']

    steps:
      - name: Harden Runner
        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
        with:
          egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs

      - name: Checkout repository
        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1

      # Initializes the CodeQL tools for scanning.
      - name: Initialize CodeQL
        uses: github/codeql-action/init@45c373516f557556c15d420e3f5e0aa3d64366bc # v3.31.9
        with:
          config-file: ./.github/codeql/config.yml
          languages: ${{ matrix.language }}

      - name: Perform CodeQL Analysis
        uses: github/codeql-action/analyze@45c373516f557556c15d420e3f5e0aa3d64366bc # v3.31.9
        with:
          category: '/language:${{matrix.language}}'

The same workflow, on Latchkey

Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.

name: 'CodeQL'
 
on:
  push:
    branches: ['main']
  pull_request:
    # The branches below must be a subset of the branches above
    branches: ['main']
  schedule:
    - cron: '0 0 * * 1'
 
permissions:
  contents: read
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  analyze:
    timeout-minutes: 30
    name: Analyze
    runs-on: latchkey-small
    permissions:
      actions: read
      contents: read
      security-events: write
 
    strategy:
      fail-fast: false
      matrix:
        # TODO: add `cpp` for Validator; don't forget to add a build step
        language: ['go', 'javascript', 'python', 'typescript']
 
    steps:
      - name: Harden Runner
        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
        with:
          egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs
 
      - name: Checkout repository
        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
 
      # Initializes the CodeQL tools for scanning.
      - name: Initialize CodeQL
        uses: github/codeql-action/init@45c373516f557556c15d420e3f5e0aa3d64366bc # v3.31.9
        with:
          config-file: ./.github/codeql/config.yml
          languages: ${{ matrix.language }}
 
      - name: Perform CodeQL Analysis
        uses: github/codeql-action/analyze@45c373516f557556c15d420e3f5e0aa3d64366bc # v3.31.9
        with:
          category: '/language:${{matrix.language}}'

What changed

Run on Latchkey managed runners with one line (runs-on), which apply the fixes below automatically and self-heal transient failures. This example uses latchkey-small; pick the runner size that fits the job.
Cancel superseded runs when a branch or PR gets a newer push.
Add a job timeout so a hung step cannot burn hours of runner time.

This workflow runs 1 job (4 with the matrix expanded) per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow

step-security/harden-runner actions/checkout github/codeql-action