semgrep.yml

# Name of this GitHub Actions workflow.
name: Semgrep
 
on:
  # Scan changed files in PRs (diff-aware scanning):
  pull_request: {}
  # Scan on-demand through GitHub Actions interface:
  workflow_dispatch: {}
  # Scan mainline branches and report all findings:
  push:
    branches: ["master", "main"]
  # Schedule the CI job (this method uses cron syntax):
  schedule:
    - cron: '20 17 * * *' # Sets Semgrep to scan every day at 17:20 UTC.
    # It is recommended to change the schedule to a random time.
 
permissions:
  actions: read
  contents: read
  security-events: write
 
jobs:
  semgrep:
    # User-definable name of this GitHub Actions job:
    name: semgrep/ci
    # If you are self-hosting, change the following `runs-on` value:
    runs-on: ubuntu-latest
 
    container:
      # A Docker image with Semgrep installed. Do not change this.
      image: returntocorp/semgrep
 
    # Skip any PR created by dependabot to avoid permission issues:
    if: (github.actor != 'dependabot[bot]')
 
    steps:
      # Fetch project source with GitHub Actions Checkout.
      - uses: actions/checkout@v3
      # Run the "semgrep ci" command on the command line of the docker image.
      - run: semgrep ci --sarif --output=semgrep.sarif --exclude-rule yaml.github-actions.security.third-party-action-not-pinned-to-commit-sha.third-party-action-not-pinned-to-commit-sha
        env:
           # Add the rules that Semgrep uses by setting the SEMGREP_RULES environment variable.
           SEMGREP_RULES: p/default # more at semgrep.dev/explore
 
      - name: Upload SARIF file for GitHub Advanced Security Dashboard
        uses: github/codeql-action/upload-sarif@v2
        with:
          sarif_file: semgrep.sarif
        if: always()