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Use a GitHub App token to update the Homebrew tap #37

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Merged
xSAVIKx merged 3 commits into from
Oct 19, 2026
Merged

Use a GitHub App token to update the Homebrew tap #37

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a0f8a14
Replace HOMEBREW_TAP_TOKEN with a GitHub App installation token.
xSAVIKx Oct 19, 2026
fafc4d8
Rename Homebrew tap App credentials to dualentry-ci.
xSAVIKx Oct 19, 2026
52d0d63
Use a GitHub App token to update the Homebrew tap on release.
xSAVIKx Oct 19, 2026
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25 changes: 19 additions & 6 deletions .github/workflows/release.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -55,15 +55,29 @@ jobs:
gh release upload "${{ github.event.release.tag_name }}" "$f" --repo "${{ github.repository }}"
done

# GITHUB_TOKEN cannot write to another repository. Use a GitHub App
# installation token to update the Homebrew tap.
update-tap:
needs: upload
runs-on: ubuntu-latest
permissions: {}
steps:
- name: Create GitHub App token
id: app-token
uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0
with:
client-id: ${{ vars.DUALENTRY_CI_APP_CLIENT_ID }}
private-key: ${{ secrets.DUALENTRY_CI_APP_PRIVATE_KEY }}
owner: ${{ github.repository_owner }}
repositories: homebrew-tap
permission-contents: write
permission-pull-requests: write

- name: Update Homebrew tap
if: ${{ env.TAP_TOKEN != '' }}
env:
TAP_TOKEN: ${{ secrets.HOMEBREW_TAP_TOKEN }}
GH_TOKEN: ${{ steps.app-token.outputs.token }}
run: |
set -euo pipefail
VERSION="${GITHUB_REF_NAME#v}"
BASE_URL="https://github.com/${{ github.repository }}/releases/download/${{ github.event.release.tag_name }}"

Expand Down Expand Up @@ -112,7 +126,7 @@ jobs:
sed -i "s|SHA_LINUX_PLACEHOLDER|$SHA_LINUX|g" /tmp/dualentry.rb
sed -i 's/^ //' /tmp/dualentry.rb

git clone "https://x-access-token:${TAP_TOKEN}@github.com/dualentry/homebrew-tap.git" /tmp/tap
git clone "https://x-access-token:${GH_TOKEN}@github.com/dualentry/homebrew-tap.git" /tmp/tap
mkdir -p /tmp/tap/Formula
cp /tmp/dualentry.rb /tmp/tap/Formula/dualentry.rb
cd /tmp/tap
Expand All @@ -125,9 +139,7 @@ jobs:
git commit -m "Update dualentry to $VERSION"
git push origin "$BRANCH"

# main is a protected branch on the tap repo (PR required), so push a
# branch and PR it instead of pushing straight to main.
export GH_TOKEN="$TAP_TOKEN"
# Push a branch and open a PR; main may require review.
PR_URL=$(gh pr create --repo dualentry/homebrew-tap \
--title "Update dualentry to $VERSION" \
--body "Automated formula update for dualentry $VERSION." \
Expand All @@ -141,3 +153,4 @@ jobs:
else
echo "::warning::Could not merge or enable auto-merge for $PR_URL — merge it manually."
fi

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