name: Build Rust CLI

# Builds the Rust `cct` binary for all supported targets and (on a tag) uploads
# per-target tarballs to the GitHub Release. Those tarballs are the source of
# truth for npm platform packages, Homebrew, cargo-binstall and the install.sh
# script.
#
# Tarball naming matches the cargo-binstall metadata in cli-rust/Cargo.toml:
#   cct-<rust-target>.tgz   (contains a single `cct` / `cct.exe`)

on:
  push:
    tags:
      - 'cli-rust-v*'
  workflow_dispatch:

# Needed for softprops/action-gh-release to create/update the Release on tags.
permissions:
  contents: write

defaults:
  run:
    working-directory: cli-rust

jobs:
  build:
    name: build ${{ matrix.target }}
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        include:
          - { os: macos-latest,   target: aarch64-apple-darwin }
          - { os: macos-latest,   target: x86_64-apple-darwin }
          - { os: ubuntu-latest,  target: x86_64-unknown-linux-gnu }
          - { os: ubuntu-latest,  target: aarch64-unknown-linux-gnu }
          - { os: windows-latest, target: x86_64-pc-windows-msvc }
    steps:
      - uses: actions/checkout@v4

      - name: Install Rust toolchain
        uses: dtolnay/rust-toolchain@stable
        with:
          targets: ${{ matrix.target }}

      - name: Cache cargo build
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: cli-rust
          key: ${{ matrix.target }}

      - name: Install cross-linker (aarch64 linux)
        if: matrix.target == 'aarch64-unknown-linux-gnu'
        run: |
          sudo apt-get update
          sudo apt-get install -y gcc-aarch64-linux-gnu
          mkdir -p .cargo
          printf '[target.aarch64-unknown-linux-gnu]\nlinker = "aarch64-linux-gnu-gcc"\n' >> .cargo/config.toml

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

      - name: Package tarball
        shell: bash
        run: |
          BIN=cct
          [ "${{ matrix.target }}" = "x86_64-pc-windows-msvc" ] && BIN=cct.exe
          mkdir -p dist
          cp "target/${{ matrix.target }}/release/$BIN" "dist/$BIN"
          tar -czf "dist/cct-${{ matrix.target }}.tgz" -C dist "$BIN"

      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: cct-${{ matrix.target }}
          path: cli-rust/dist/cct-${{ matrix.target }}.tgz

      - name: Attach to release
        if: startsWith(github.ref, 'refs/tags/')
        uses: softprops/action-gh-release@v2
        with:
          files: cli-rust/dist/cct-${{ matrix.target }}.tgz