scheduled-bump-cargo-lock.yml

name: scheduled-bump-cargo-lock

on:
  schedule:
    - cron: '0 0 * * 6'  # Runs every Saturday at 00:00 UTC
  workflow_dispatch:

defaults:
  run:
    shell: bash -xe {0}

permissions:
  contents: write
  pull-requests: write

jobs:
  bump-cargo-lock:
    runs-on: ubuntu-24.04
    env:
      DEVSHELL: .    
    strategy:
      fail-fast: false
      matrix:
        include:
          - name: compatible
            cmd: cargo upgrade
          - name: incompatible
            cmd: cargo upgrade --incompatible

    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1
        with:
          fetch-depth: 1

      - name: Generate Unique Branch Name
        id: branch-name
        run: echo "branch_name=bump-cargo-lock-${{ matrix.name }}-$(date +'%Y%m%d-%H%M%S')" >> $GITHUB_OUTPUT

      - uses: nixbuild/nix-quick-install-action@9f63be77f412a248c9d9a65a4c82cf066cdf8f0c
        with:
          github_access_token: ${{ secrets.GITHUB_TOKEN }}

      - name: Populate the nix store
        run: |
          nix develop $DEVSHELL --command echo

      - name: Bump Cargo.lock, Cargo.toml
        run: |
          nix develop $DEVSHELL --command cargo update
          nix develop $DEVSHELL --command ${{ matrix.cmd }}

      - name: Configure Git
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"

      - name: Commit Changes
        run: |
          git checkout -b ${{ steps.branch-name.outputs.branch_name }}
          git add Cargo.lock Cargo.toml
          if [ -n "$(git status --porcelain)" ]; then
              git commit -m "chore: Bump Rust dependencies"
              git push origin ${{ steps.branch-name.outputs.branch_name }}

              OWNER=$(echo "${{ github.repository }}" | cut -d'/' -f1)
              REPO=$(echo "${{ github.repository }}" | cut -d'/' -f2)
              curl -v --fail -X POST \
                -H "Content-Type: application/json" \
                -H "Authorization: Bearer $GITHUB_TOKEN" \
                https://api.github.com/repos/$OWNER/$REPO/pulls \
                -d '{
                  "title": "Bump '${{ matrix.name }}' dependencies",
                  "head": "'${{ steps.branch-name.outputs.branch_name }}'",
                  "base": "main",
                  "body": ""
                }'
          else
              echo "No changes to commit."
          fi
        env:
          GITHUB_TOKEN: ${{ secrets.GH_TOKEN_PR_RW }}