release.yml

name: Daily Build and Release

on:
  schedule:
    - cron: '0 12 * * *'
  workflow_dispatch:

jobs:
  release:
    name: Build and Release
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Set up Rust
        uses: actions-rs/toolchain@v1
        with:
          toolchain: nightly
          override: true

      - name: Install required Rust components
        run: |
          rustup component add rust-src --toolchain nightly
          rustup component add llvm-tools-preview --toolchain nightly

      - name: Install bootimage
        run: cargo install bootimage

      - name: Check if there are new commits
        id: check_commits
        run: |
          last_release=$(gh release list --limit 1 --json tagName -q '.[0].tagName' || echo "")
          if [ -n "$last_release" ]; then
            commits_since=$(git rev-list ${last_release}..HEAD --count)
          else
            commits_since=$(git rev-list HEAD --count)
          fi
          echo "commits_since=$commits_since" >> $GITHUB_ENV

      - name: Skip if no new commits
        if: ${{ env.commits_since == '0' }}
        run: echo "No new commits since the last release. Skipping build and release."

      - name: Build the kernel
        if: ${{ env.commits_since != '0' }}
        run: cargo bootimage

      - name: Generate release tag
        if: ${{ env.commits_since != '0' }}
        id: generate_tag
        run: |
          today=$(date -u +%Y.%m.%d)
          echo "release_tag=$today" >> $GITHUB_ENV

      - name: Create GitHub Release
        id: create_release
        uses: actions/create-release@v1.1.0
        with:
          tag_name: ${{ env.release_tag }}
          release_name: Release ${{ env.release_tag }}
          draft: false
          prerelease: false
          generate_release_notes: true
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Upload Release Asset
        if: ${{ env.commits_since != '0' }}
        uses: actions/upload-release-asset@v1
        with:
          upload_url: ${{ steps.create_release.outputs.upload_url }}
          asset_path: target/x86_64-infinity_os/debug/bootimage-infinity_os.bin
          asset_name: bootimage-infinity_os.bin
          asset_content_type: application/octet-stream