mcp-multiplexer 0.3.1

One MCP server fronting many: 7 meta-tools instead of every tool schema in context
Documentation 
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name: Release

on:
  push:
    tags: ["v*"]
  workflow_dispatch:
    inputs:
      tag:
        description: "Release tag (e.g. v0.3.0) — created by this workflow"
        required: true

permissions:
  contents: write
  packages: write

jobs:
  # Gate: the tag must match Cargo.toml's version and have a CHANGELOG.md
  # section, which becomes the GitHub release notes.
  notes:
    runs-on: ubuntu-latest
    env:
      TAG: ${{ inputs.tag || github.ref_name }}
    steps:
      - uses: actions/checkout@v4
      - name: Verify tag matches Cargo.toml version
        run: |
          tag="${TAG#v}"
          cargo_version=$(grep -m1 '^version' Cargo.toml | cut -d'"' -f2)
          [ "$tag" = "$cargo_version" ] || { echo "::error::tag v$tag != Cargo.toml version $cargo_version"; exit 1; }
      - name: Extract release notes from CHANGELOG.md
        run: |
          awk '/^## \['"${TAG#v}"'\]/{f=1;next} /^## \[/{f=0} f' CHANGELOG.md > notes.md
          [ -s notes.md ] || { echo "::error::no CHANGELOG.md section for ${TAG}"; exit 1; }
      - name: Create GitHub Release with notes
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ env.TAG }}
          body_path: notes.md

  binaries:
    needs: notes
    strategy:
      fail-fast: false
      matrix:
        include:
          - { target: x86_64-unknown-linux-musl, os: ubuntu-latest }
          - { target: aarch64-unknown-linux-musl, os: ubuntu-24.04-arm }
          - { target: x86_64-apple-darwin, os: macos-latest }
          - { target: aarch64-apple-darwin, os: macos-latest }
          - { target: x86_64-pc-windows-msvc, os: windows-latest }
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
        with:
          target: ${{ matrix.target }}
      - name: Install musl tools
        if: runner.os == 'Linux'
        run: sudo apt-get update && sudo apt-get install -y musl-tools
      - name: Build
        run: cargo build --release --locked --target ${{ matrix.target }} --bin mcp-multiplexer
      - name: Package (unix)
        if: runner.os != 'Windows'
        shell: bash
        run: |
          strip target/${{ matrix.target }}/release/mcp-multiplexer || true
          tar -czvf mcp-multiplexer-${{ matrix.target }}.tar.gz \
            -C target/${{ matrix.target }}/release mcp-multiplexer
          sha256sum mcp-multiplexer-${{ matrix.target }}.tar.gz \
            > mcp-multiplexer-${{ matrix.target }}.tar.gz.sha256
      - name: Package (windows)
        if: runner.os == 'Windows'
        shell: pwsh
        run: |
          Compress-Archive -Path target/${{ matrix.target }}/release/mcp-multiplexer.exe -DestinationPath mcp-multiplexer-${{ matrix.target }}.zip
          $f = "mcp-multiplexer-${{ matrix.target }}.zip"
          "$((Get-FileHash $f).Hash.ToLower())  $f" | Out-File -Encoding ascii "$f.sha256"
      - name: Upload to GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ inputs.tag || github.ref_name }}
          files: mcp-multiplexer-${{ matrix.target }}.*

  crates:
    needs: binaries
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
      - run: cargo test --locked
      # Needs a CARGO_REGISTRY_TOKEN repository secret (crates.io API token).
      - run: cargo publish --token ${{ secrets.CARGO_REGISTRY_TOKEN }}

  docker:
    needs: notes
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: docker/setup-buildx-action@v3
      - uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - uses: docker/build-push-action@v6
        with:
          push: true
          tags: |
            ghcr.io/johgirard/mcp-multiplexer:latest
            ghcr.io/johgirard/mcp-multiplexer:${{ inputs.tag || github.ref_name }}