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mrpollomrpollo
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feat: add release workflow with Homebrew bottle support
Release workflow triggered by version tags (v*): - Creates source tarball with submodule baked in - Builds Homebrew bottles for macOS arm64 and x86_64 - Publishes GitHub Release with all artifacts - Updates mavlink/homebrew-tap formula with bottle hashes Requires HOMEBREW_TAP_TOKEN secret for tap repo access.
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‎.github/workflows/release.yml‎

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name: Release
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on:
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push:
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tags:
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- 'v*'
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permissions:
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contents: write
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jobs:
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# ── Job 1: Create source tarball and draft release ─────────────────────────
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source-tarball:
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name: Source tarball
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runs-on: ubuntu-latest
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outputs:
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version: ${{ steps.version.outputs.version }}
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tarball_sha256: ${{ steps.tarball.outputs.sha256 }}
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steps:
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- uses: actions/checkout@v4
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with:
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submodules: true
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- name: Extract version from tag
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id: version
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run: echo "version=${GITHUB_REF#refs/tags/v}" >> "$GITHUB_OUTPUT"
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- name: Create source tarball
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id: tarball
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run: |
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VERSION=${{ steps.version.outputs.version }}
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tar czf mavsim-viewer-${VERSION}.tar.gz \
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--exclude='.git' \
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--exclude='tests/fixtures/*.ulg' \
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--exclude='build' \
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--transform="s,^\.,mavsim-viewer-${VERSION}," \
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.
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SHA=$(sha256sum mavsim-viewer-${VERSION}.tar.gz | awk '{print $1}')
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echo "sha256=${SHA}" >> "$GITHUB_OUTPUT"
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echo "Tarball SHA256: ${SHA}"
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- name: Create draft release
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run: |
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gh release create ${{ github.ref_name }} \
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--draft \
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--title "${{ github.ref_name }}" \
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--generate-notes
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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- name: Upload source tarball
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run: |
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VERSION=${{ steps.version.outputs.version }}
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gh release upload ${{ github.ref_name }} mavsim-viewer-${VERSION}.tar.gz
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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# ── Job 2a: macOS arm64 bottle ─────────────────────────────────────────────
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bottle-arm64:
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name: Bottle (arm64)
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needs: source-tarball
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runs-on: macos-14
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outputs:
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bottle_sha256: ${{ steps.bottle.outputs.sha256 }}
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bottle_tag: ${{ steps.bottle.outputs.tag }}
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steps:
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- name: Set up tap with formula
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env:
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VERSION: ${{ needs.source-tarball.outputs.version }}
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TARBALL_SHA: ${{ needs.source-tarball.outputs.tarball_sha256 }}
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TAG: ${{ github.ref_name }}
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run: |
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FORMULA_DIR="$(brew --repo)/Library/Taps/mavlink/homebrew-tap/Formula"
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mkdir -p "$FORMULA_DIR"
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python3 -c "
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import os
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formula = '''class MavsimViewer < Formula
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desc \"3D MAVLink vehicle viewer for SITL simulation\"
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homepage \"https://github.com/mavlink/mavsim-viewer\"
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url \"https://github.com/mavlink/mavsim-viewer/releases/download/{tag}/mavsim-viewer-{version}.tar.gz\"
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sha256 \"{sha}\"
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license \"BSD-3-Clause\"
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depends_on \"cmake\" => :build
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def install
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system \"cmake\", \"-S\", \".\", \"-B\", \"build\", \"-DCMAKE_BUILD_TYPE=Release\", *std_cmake_args
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system \"cmake\", \"--build\", \"build\"
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system \"cmake\", \"--install\", \"build\", \"--prefix\", prefix
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end
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test do
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assert_predicate bin/\"mavsim-viewer\", :executable?
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end
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end
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'''.format(
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tag=os.environ['TAG'],
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version=os.environ['VERSION'],
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sha=os.environ['TARBALL_SHA'],
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)
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with open(os.environ['FORMULA_DIR'] + '/mavsim-viewer.rb', 'w') as f:
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f.write(formula)
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" FORMULA_DIR="$FORMULA_DIR"
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- name: Build bottle
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run: brew install --build-bottle mavlink/tap/mavsim-viewer
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- name: Package bottle
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id: bottle
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run: |
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TAG=${{ github.ref_name }}
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brew bottle \
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--json \
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--root-url="https://github.com/mavlink/mavsim-viewer/releases/download/${TAG}" \
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mavlink/tap/mavsim-viewer
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BOTTLE_JSON=$(ls mavsim-viewer--*.bottle.json)
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BOTTLE_FILE=$(ls mavsim-viewer--*.bottle.tar.gz)
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CLEAN_NAME=$(echo "$BOTTLE_FILE" | sed 's/--/-/')
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mv "$BOTTLE_FILE" "$CLEAN_NAME"
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BOTTLE_SHA=$(python3 -c "
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import json, sys
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data = json.load(open(sys.argv[1]))
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tags = data['mavsim-viewer']['bottle']['tags']
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tag = list(tags.keys())[0]
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print(tags[tag]['sha256'])
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" "$BOTTLE_JSON")
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BOTTLE_TAG=$(python3 -c "
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import json, sys
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data = json.load(open(sys.argv[1]))
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tags = data['mavsim-viewer']['bottle']['tags']
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print(list(tags.keys())[0])
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" "$BOTTLE_JSON")
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echo "sha256=${BOTTLE_SHA}" >> "$GITHUB_OUTPUT"
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echo "tag=${BOTTLE_TAG}" >> "$GITHUB_OUTPUT"
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echo "file=${CLEAN_NAME}" >> "$GITHUB_OUTPUT"
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- name: Upload bottle to release
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run: gh release upload ${{ github.ref_name }} ${{ steps.bottle.outputs.file }}
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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# ── Job 2b: macOS x86_64 bottle ───────────────────────────────────────────
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bottle-x86_64:
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name: Bottle (x86_64)
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needs: source-tarball
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runs-on: macos-13
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outputs:
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bottle_sha256: ${{ steps.bottle.outputs.sha256 }}
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bottle_tag: ${{ steps.bottle.outputs.tag }}
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steps:
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- name: Set up tap with formula
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env:
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VERSION: ${{ needs.source-tarball.outputs.version }}
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TARBALL_SHA: ${{ needs.source-tarball.outputs.tarball_sha256 }}
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TAG: ${{ github.ref_name }}
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run: |
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FORMULA_DIR="$(brew --repo)/Library/Taps/mavlink/homebrew-tap/Formula"
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mkdir -p "$FORMULA_DIR"
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python3 -c "
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import os
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formula = '''class MavsimViewer < Formula
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desc \"3D MAVLink vehicle viewer for SITL simulation\"
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homepage \"https://github.com/mavlink/mavsim-viewer\"
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url \"https://github.com/mavlink/mavsim-viewer/releases/download/{tag}/mavsim-viewer-{version}.tar.gz\"
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sha256 \"{sha}\"
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license \"BSD-3-Clause\"
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depends_on \"cmake\" => :build
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def install
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system \"cmake\", \"-S\", \".\", \"-B\", \"build\", \"-DCMAKE_BUILD_TYPE=Release\", *std_cmake_args
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system \"cmake\", \"--build\", \"build\"
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system \"cmake\", \"--install\", \"build\", \"--prefix\", prefix
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end
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test do
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assert_predicate bin/\"mavsim-viewer\", :executable?
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end
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end
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'''.format(
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tag=os.environ['TAG'],
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version=os.environ['VERSION'],
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sha=os.environ['TARBALL_SHA'],
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)
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with open(os.environ['FORMULA_DIR'] + '/mavsim-viewer.rb', 'w') as f:
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f.write(formula)
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" FORMULA_DIR="$FORMULA_DIR"
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- name: Build bottle
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run: brew install --build-bottle mavlink/tap/mavsim-viewer
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- name: Package bottle
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id: bottle
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run: |
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TAG=${{ github.ref_name }}
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brew bottle \
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--json \
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--root-url="https://github.com/mavlink/mavsim-viewer/releases/download/${TAG}" \
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mavlink/tap/mavsim-viewer
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BOTTLE_JSON=$(ls mavsim-viewer--*.bottle.json)
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BOTTLE_FILE=$(ls mavsim-viewer--*.bottle.tar.gz)
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CLEAN_NAME=$(echo "$BOTTLE_FILE" | sed 's/--/-/')
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mv "$BOTTLE_FILE" "$CLEAN_NAME"
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BOTTLE_SHA=$(python3 -c "
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import json, sys
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data = json.load(open(sys.argv[1]))
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tags = data['mavsim-viewer']['bottle']['tags']
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tag = list(tags.keys())[0]
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print(tags[tag]['sha256'])
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" "$BOTTLE_JSON")
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BOTTLE_TAG=$(python3 -c "
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import json, sys
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data = json.load(open(sys.argv[1]))
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tags = data['mavsim-viewer']['bottle']['tags']
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print(list(tags.keys())[0])
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" "$BOTTLE_JSON")
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echo "sha256=${BOTTLE_SHA}" >> "$GITHUB_OUTPUT"
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echo "tag=${BOTTLE_TAG}" >> "$GITHUB_OUTPUT"
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echo "file=${CLEAN_NAME}" >> "$GITHUB_OUTPUT"
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- name: Upload bottle to release
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run: gh release upload ${{ github.ref_name }} ${{ steps.bottle.outputs.file }}
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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# ── Job 3: Publish the release ─────────────────────────────────────────────
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publish-release:
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name: Publish release
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needs: [bottle-arm64, bottle-x86_64]
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runs-on: ubuntu-latest
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steps:
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- name: Mark release as published
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run: |
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gh release edit ${{ github.ref_name }} \
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--repo ${{ github.repository }} \
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--draft=false
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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# ── Job 4: Update Homebrew tap ─────────────────────────────────────────────
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update-tap:
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name: Update Homebrew tap
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needs: [source-tarball, bottle-arm64, bottle-x86_64, publish-release]
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runs-on: ubuntu-latest
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steps:
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- name: Update formula in tap
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env:
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VERSION: ${{ needs.source-tarball.outputs.version }}
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TAG: ${{ github.ref_name }}
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TARBALL_SHA: ${{ needs.source-tarball.outputs.tarball_sha256 }}
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ARM64_SHA: ${{ needs.bottle-arm64.outputs.bottle_sha256 }}
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ARM64_TAG: ${{ needs.bottle-arm64.outputs.bottle_tag }}
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X86_SHA: ${{ needs.bottle-x86_64.outputs.bottle_sha256 }}
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X86_TAG: ${{ needs.bottle-x86_64.outputs.bottle_tag }}
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TAP_TOKEN: ${{ secrets.HOMEBREW_TAP_TOKEN }}
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run: |
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git clone https://x-access-token:${TAP_TOKEN}@github.com/mavlink/homebrew-tap.git tap
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mkdir -p tap/Formula
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python3 -c "
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import os
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formula = '''class MavsimViewer < Formula
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desc \"3D MAVLink vehicle viewer for SITL simulation\"
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homepage \"https://github.com/mavlink/mavsim-viewer\"
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url \"https://github.com/mavlink/mavsim-viewer/releases/download/{tag}/mavsim-viewer-{version}.tar.gz\"
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sha256 \"{tarball_sha}\"
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license \"BSD-3-Clause\"
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bottle do
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root_url \"https://github.com/mavlink/mavsim-viewer/releases/download/{tag}\"
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sha256 cellar: :any_skip_relocation, {arm64_tag}: \"{arm64_sha}\"
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sha256 cellar: :any_skip_relocation, {x86_tag}: \"{x86_sha}\"
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end
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depends_on \"cmake\" => :build
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def install
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system \"cmake\", \"-S\", \".\", \"-B\", \"build\",
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\"-DCMAKE_BUILD_TYPE=Release\",
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*std_cmake_args
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system \"cmake\", \"--build\", \"build\"
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system \"cmake\", \"--install\", \"build\", \"--prefix\", prefix
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end
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test do
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assert_predicate bin/\"mavsim-viewer\", :executable?
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end
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end
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'''.format(
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tag=os.environ['TAG'],
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version=os.environ['VERSION'],
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tarball_sha=os.environ['TARBALL_SHA'],
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arm64_sha=os.environ['ARM64_SHA'],
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arm64_tag=os.environ['ARM64_TAG'],
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x86_sha=os.environ['X86_SHA'],
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x86_tag=os.environ['X86_TAG'],
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)
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with open('tap/Formula/mavsim-viewer.rb', 'w') as f:
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f.write(formula)
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"
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cd tap
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git config user.name "github-actions[bot]"
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git config user.email "github-actions[bot]@users.noreply.github.com"
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git add Formula/mavsim-viewer.rb
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git commit -m "mavsim-viewer ${VERSION}"
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git push

‎Formula/mavsim-viewer.rb‎

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# Reference template — the canonical formula lives in mavlink/homebrew-tap
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# and is automatically updated by .github/workflows/release.yml on each release.
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class MavsimViewer < Formula
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desc "3D MAVLink vehicle viewer for SITL simulation"
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homepage "https://github.com/mavlink/mavsim-viewer"
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url "https://github.com/mavlink/mavsim-viewer/releases/download/vVERSION/mavsim-viewer-VERSION.tar.gz"
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sha256 "TODO"
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license "BSD-3-Clause"
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depends_on "cmake" => :build
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def install
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system "cmake", "-S", ".", "-B", "build",
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"-DCMAKE_BUILD_TYPE=Release",
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*std_cmake_args
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system "cmake", "--build", "build"
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system "cmake", "--install", "build", "--prefix", prefix
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end
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test do
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assert_predicate bin/"mavsim-viewer", :executable?
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end
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end

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