trampoline.yaml

name: Update Trampoline Binary

on:
  push:
    paths:
      - "crates/pixi_trampoline/**"
      - ".github/workflows/trampoline.yaml"
      - "src/global/trampoline.rs"
  workflow_dispatch:
  pull_request:
    paths:
      - "crates/pixi_trampoline/**"
      - ".github/workflows/trampoline.yaml"
      - "src/global/trampoline.rs"

permissions:
  contents: write # Allow write permissions for contents (like pushing to the repo)
  pull-requests: write

jobs:
  build:
    runs-on: ${{ matrix.os }}
    defaults:
      run:
        working-directory: crates/pixi_trampoline
    strategy:
      fail-fast: true
      matrix:
        include:
          - name: "Linux-x86_64"
            target: x86_64-unknown-linux-musl
            os: ubuntu-latest

          - name: "Linux-aarch64"
            target: aarch64-unknown-linux-musl
            os: ubuntu-latest

          - name: "Linux-powerpc64le"
            target: powerpc64le-unknown-linux-gnu
            os: ubuntu-latest

          - name: "macOS-x86"
            target: x86_64-apple-darwin
            os: macos-13

          - name: "macOS-arm"
            target: aarch64-apple-darwin
            os: macos-14

          - name: "Windows"
            target: x86_64-pc-windows-msvc
            os: windows-latest

          - name: "Windows-arm"
            target: aarch64-pc-windows-msvc
            os: windows-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0 # Fetch full history so we have branch information

      - name: Set up Rust
        uses: taiki-e/setup-cross-toolchain-action@v1
        with:
          target: ${{ matrix.target }}

      - name: Build trampoline binary
        run: cargo build --release --target ${{ matrix.target }}

      - name: Move trampoline binary on windows
        if: startsWith(matrix.name, 'Windows')
        run: |
          mkdir -p trampolines-binaries
          mv target/${{ matrix.target }}/release/pixi_trampoline.exe trampolines-binaries/pixi-trampoline-${{ matrix.target }}.exe

      - name: Move trampoline binary on unix
        if: startsWith(matrix.name, 'Windows') == false
        run: |
          mkdir -p trampolines-binaries
          mv target/${{ matrix.target }}/release/pixi_trampoline trampolines-binaries/pixi-trampoline-${{ matrix.target }}

      - name: Upload binary artifact
        uses: actions/upload-artifact@v4
        with:
          name: trampoline-${{ matrix.target }}
          path: crates/pixi_trampoline/trampolines-binaries/

  aggregate:
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: crates/pixi_trampoline
    needs: build # This ensures the aggregation job runs after the build jobs
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Download all binaries
        uses: actions/download-artifact@v4
        with:
          path: crates/pixi_trampoline/trampolines-binaries/

      - name: List downloaded files
        run: ls -R trampolines-binaries/

      - name: Move trampolines
        run: |
          mkdir -p trampolines
          # Iterate through all files in trampolines directory and its subdirectories
          find trampolines-binaries -type f  -name 'pixi-trampoline-*' -exec mv -f {} trampolines/ \;
          # now iterate through all files in trampolines directory and compress them using zstd
          # and remove the original file
          # by using -f we allow overwriting the file
          for file in trampolines/*; do
            # Skip files that are already compressed (end with .zst)
            if [[ "$file" == *.zst ]]; then
              continue
            fi
            zstd "$file" -f
            rm "$file"
          done
          ls -R trampolines/

      - name: Upload binary artifact
        uses: actions/upload-artifact@v4
        with:
          name: trampolines
          path: crates/pixi_trampoline/trampolines/

      - name: Commit and push updated binaries
        # Don't run on forks
        if: github.repository == 'prefix-dev/pixi' && startsWith(github.ref, 'reaf/heads')
        run: |
          # Set the repository to push to the repository the workflow is running on
          git config user.name "GitHub Actions"
          git config user.email "actions@github.com"
          git add trampolines/
          git commit -m "[CI]: Update trampoline binaries for all targets"
          # Push changes to the branch that triggered the workflow
          BRANCH=${GITHUB_REF#refs/heads/}
          git push origin HEAD:$BRANCH