tensor_frame 0.0.3-alpha

name: Release

on:
  push:
    branches:
      - main

jobs:
  check-version:
    name: Check Version Change
    runs-on: ubuntu-latest
    outputs:
      changed: ${{ steps.check.outputs.changed }}
      version: ${{ steps.version.outputs.version }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Get current version
        id: version
        run: |
          VERSION=$(grep '^version[[:space:]]*=' Cargo.toml | head -n1 | sed 's/.*"\(.*\)".*/\1/')
          if [ -z "$VERSION" ]; then
            echo "Version not found in Cargo.toml!" >&2
            exit 1
          fi
          echo "Current version: $VERSION"
          echo "version=$VERSION" >> $GITHUB_OUTPUT

      - name: Get latest release version
        id: latest
        run: |
          LATEST=$(gh release list --limit 1 --json tagName --jq '.[0].tagName // "none"' || echo "none")
          # Remove 'v' prefix if present for comparison
          LATEST=${LATEST#v}
          echo "Latest release: $LATEST"
          echo "latest=$LATEST" >> $GITHUB_OUTPUT
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Check if version changed
        id: check
        run: |
          if [ "${{ steps.version.outputs.version }}" = "${{ steps.latest.outputs.latest }}" ]; then
            echo "No version change. Skipping release."
            echo "changed=false" >> $GITHUB_OUTPUT
          else
            echo "Version changed from ${{ steps.latest.outputs.latest }} to ${{ steps.version.outputs.version }}"
            echo "changed=true" >> $GITHUB_OUTPUT
          fi

  publish-crate:
    name: Publish to crates.io
    needs: [check-version]
    if: needs.check-version.outputs.changed == 'true'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Install Rust toolchain
        uses: dtolnay/rust-toolchain@stable

      - name: Publish to crates.io
        run: cargo publish --token ${{ secrets.CARGO_REGISTRY_TOKEN }}
        env:
          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}

  create-release:
    name: Create GitHub Release
    needs: [check-version, publish-crate]
    if: needs.check-version.outputs.changed == 'true'
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: v${{ needs.check-version.outputs.version }}
          name: Release v${{ needs.check-version.outputs.version }}
          generate_release_notes: true
          draft: false
          prerelease: ${{ contains(needs.check-version.outputs.version, '-') }}
          body: |
            ## Installation
            
            ```toml
            [dependencies]
            tensor_frame = "${{ needs.check-version.outputs.version }}"
            ```
            
            Or with specific backends:
            ```toml
            [dependencies]
            tensor_frame = { version = "${{ needs.check-version.outputs.version }}", features = ["wgpu"] }
            ```
            
            See the [crates.io page](https://crates.io/crates/tensor_frame) for more information.
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}