toolchain-upgrade.yml

# Copyright Kani Contributors
# SPDX-License-Identifier: Apache-2.0 OR MIT

name: Attempt toolchain update

on:
  schedule:
    - cron: "30 2 * * *" # Run this every day at 02:30 UTC
  workflow_dispatch:     # Allow manual dispatching for a custom branch / tag.

permissions:
  checks: write
  contents: write
  issues: write
  pull-requests: write

jobs:
  create-toolchain-pr:
    runs-on: ubuntu-22.04
    steps:
      - name: Checkout Kani
        uses: actions/checkout@v4

      - name: Setup Kani Dependencies
        uses: ./.github/actions/setup
        with:
          os: ubuntu-22.04

      - name: Update toolchain config
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          source scripts/toolchain_update.sh

      - name: Clean untracked files
        run: git clean -f

      - name: Create Pull Request
        id: create_pr
        if: ${{ env.next_step == 'create_pr' }}
        uses: peter-evans/create-pull-request@v6
        with:
          commit-message: Upgrade Rust toolchain to nightly-${{ env.next_toolchain_date }}
          branch: toolchain-${{ env.next_toolchain_date }}
          delete-branch: true
          title: 'Automatic toolchain upgrade to nightly-${{ env.next_toolchain_date }}'
          body: >
            Update Rust toolchain from nightly-${{ env.current_toolchain_date }} to
            nightly-${{ env.next_toolchain_date }} without any other source changes.

      - name: Add debugging hints
        if: ${{ steps.create_pr.outputs.pull-request-number }}
        uses: actions/github-script@v7
        with:
          script: |
            github.rest.issues.createComment({
              issue_number: ${{ steps.create_pr.outputs.pull-request-number }},
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: `This is an automatically generated pull request. If any of the CI checks fail,
                manual intervention is required. In such a case, review the changes at
                https://github.com/rust-lang/rust from
                https://github.com/rust-lang/rust/commit/${{ env.current_toolchain_hash }} up to
                https://github.com/rust-lang/rust/commit/${{ env.next_toolchain_hash }}. The log
                for this commit range is:

                ` + process.env.git_log
            })

      - name: Create Issue
        if: ${{ env.next_step == 'create_issue' }}
        uses: dacbd/create-issue-action@main
        with:
          token: ${{ github.token }}
          title: 'Toolchain upgrade to nightly-${{ env.next_toolchain_date }} failed'
          body: >
            Updating Rust toolchain from nightly-${{ env.current_toolchain_date }} to
            nightly-${{ env.next_toolchain_date }} requires source changes.

            The failed automated run
            [can be found here.](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }})

            Please review the changes at
            https://github.com/rust-lang/rust from
            https://github.com/rust-lang/rust/commit/${{ env.current_toolchain_hash }} up to
            https://github.com/rust-lang/rust/commit/${{ env.next_toolchain_hash }}. The log
            for this commit range is:

            ${{ env.git_log }}