add homebrew cask bump workflow
Auto-updates the openscreen Homebrew tap on each published release: finds the macOS DMGs, computes sha256, and rewrites Casks/openscreen.rb in siddharthvaddem/homebrew-openscreen. Requires HOMEBREW_TAP_TOKEN secret with contents:write on the tap repo. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Siddharth
@@ -0,0 +1,162 @@
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name: Update Homebrew Cask
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on:
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release:
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types: [published]
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workflow_dispatch:
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inputs:
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tag:
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description: "Release tag to publish to the tap (e.g. v1.4.0)"
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required: true
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type: string
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permissions:
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contents: read
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jobs:
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update-cask:
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runs-on: ubuntu-latest
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if: github.event_name == 'workflow_dispatch' || !github.event.release.prerelease
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env:
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TAP_OWNER: siddharthvaddem
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TAP_REPO: homebrew-openscreen
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CASK_NAME: openscreen
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steps:
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- name: Resolve tag and version
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id: meta
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env:
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GH_EVENT_TAG: ${{ github.event.release.tag_name }}
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INPUT_TAG: ${{ inputs.tag }}
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run: |
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set -euo pipefail
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TAG="${GH_EVENT_TAG:-$INPUT_TAG}"
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if [[ -z "$TAG" ]]; then
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echo "::error::No tag resolved from release event or workflow input"
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exit 1
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fi
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VERSION="${TAG#v}"
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echo "tag=$TAG" >> "$GITHUB_OUTPUT"
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echo "version=$VERSION" >> "$GITHUB_OUTPUT"
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- name: Find macOS DMG assets
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id: assets
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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TAG: ${{ steps.meta.outputs.tag }}
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REPO: ${{ github.repository }}
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run: |
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set -euo pipefail
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NAMES=$(gh release view "$TAG" --repo "$REPO" --json assets --jq '.assets[].name')
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# arm64 DMG: explicit "arm64" / "apple silicon" / fallback to any .dmg
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# whose name does NOT contain "x64" or non-mac platform markers.
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ARM_NAME=$(echo "$NAMES" | grep -iE '\.dmg$' \
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| grep -iE '(arm64|apple[-_. ]?silicon)' | head -n1 || true)
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if [[ -z "$ARM_NAME" ]]; then
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ARM_NAME=$(echo "$NAMES" | grep -iE '\.dmg$' \
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| grep -iv 'x64' | grep -iv 'linux' | grep -iv 'win' | head -n1 || true)
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fi
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# x64 DMG
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X64_NAME=$(echo "$NAMES" | grep -iE '\.dmg$' \
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| grep -iE '(x64|x86[-_]?64|intel)' | head -n1 || true)
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if [[ -z "$ARM_NAME" || -z "$X64_NAME" ]]; then
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echo "::error::Could not locate both arm64 and x64 DMGs in release assets"
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echo "Available assets:"
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echo "$NAMES"
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exit 1
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fi
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echo "arm_name=$ARM_NAME" >> "$GITHUB_OUTPUT"
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echo "x64_name=$X64_NAME" >> "$GITHUB_OUTPUT"
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echo "Found arm64 asset: $ARM_NAME"
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echo "Found x64 asset: $X64_NAME"
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- name: Download DMGs and compute sha256
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id: shas
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env:
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REPO: ${{ github.repository }}
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TAG: ${{ steps.meta.outputs.tag }}
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ARM_NAME: ${{ steps.assets.outputs.arm_name }}
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X64_NAME: ${{ steps.assets.outputs.x64_name }}
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run: |
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set -euo pipefail
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BASE="https://github.com/${REPO}/releases/download/${TAG}"
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curl -fsSL --retry 3 -o /tmp/arm.dmg "${BASE}/${ARM_NAME}"
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curl -fsSL --retry 3 -o /tmp/x64.dmg "${BASE}/${X64_NAME}"
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ARM_SHA=$(sha256sum /tmp/arm.dmg | awk '{print $1}')
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X64_SHA=$(sha256sum /tmp/x64.dmg | awk '{print $1}')
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echo "arm_sha=$ARM_SHA" >> "$GITHUB_OUTPUT"
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echo "x64_sha=$X64_SHA" >> "$GITHUB_OUTPUT"
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- name: Checkout tap
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uses: actions/checkout@v4
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with:
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repository: ${{ env.TAP_OWNER }}/${{ env.TAP_REPO }}
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token: ${{ secrets.HOMEBREW_TAP_TOKEN }}
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path: tap
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- name: Write cask file
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env:
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REPO: ${{ github.repository }}
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TAG: ${{ steps.meta.outputs.tag }}
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VERSION: ${{ steps.meta.outputs.version }}
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ARM_NAME: ${{ steps.assets.outputs.arm_name }}
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X64_NAME: ${{ steps.assets.outputs.x64_name }}
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ARM_SHA: ${{ steps.shas.outputs.arm_sha }}
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X64_SHA: ${{ steps.shas.outputs.x64_sha }}
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run: |
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set -euo pipefail
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mkdir -p tap/Casks
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BASE="https://github.com/${REPO}/releases/download/${TAG}"
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cat > "tap/Casks/${CASK_NAME}.rb" <<EOF
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cask "${CASK_NAME}" do
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version "${VERSION}"
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on_arm do
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sha256 "${ARM_SHA}"
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url "${BASE}/${ARM_NAME}"
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end
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on_intel do
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sha256 "${X64_SHA}"
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url "${BASE}/${X64_NAME}"
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end
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name "Openscreen"
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desc "Screen recorder and video editor"
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homepage "https://github.com/${REPO}"
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auto_updates false
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depends_on macos: ">= :big_sur"
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app "Openscreen.app"
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zap trash: [
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"~/Library/Application Support/Openscreen",
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"~/Library/Preferences/com.siddharthvaddem.openscreen.plist",
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"~/Library/Logs/Openscreen",
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"~/Library/Caches/com.siddharthvaddem.openscreen",
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"~/Library/Saved Application State/com.siddharthvaddem.openscreen.savedState",
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]
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end
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EOF
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- name: Commit and push to tap
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working-directory: tap
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env:
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VERSION: ${{ steps.meta.outputs.version }}
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run: |
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set -euo pipefail
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git config user.name "github-actions[bot]"
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git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
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git add "Casks/${CASK_NAME}.rb"
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if git diff --cached --quiet; then
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echo "Cask already up to date for ${VERSION} — nothing to commit."
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exit 0
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fi
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git commit -m "Bump ${CASK_NAME} to ${VERSION}"
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git push
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