From 8dd4ce85ef4794f3b8e2eddec7de8d2bb5198110 Mon Sep 17 00:00:00 2001
From: "Daniel (dB.) Doubrovkine" <dblock@dblock.org>
Date: Mon, 26 Oct 2026 12:21:13 -0400
Subject: [PATCH] Merge stable matrix coverage in Coveralls

Publish and finalize parallel LCOV reports from all stable Ruby/Grape jobs. Preserve existing SimpleCov file accounting and refresh the Coveralls badge and contributor guidance.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
---
 .github/workflows/test.yml | 14 +++++++++++++-
 CHANGELOG.md               |  1 +
 README.md                  |  4 +++-
 3 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f23545f..1d53b4a 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -33,10 +33,22 @@ jobs:
           bundler-cache: true
       - run: bundle exec rake spec
       - uses: coverallsapp/github-action@v2
-        if: matrix.ruby == '3.3' && matrix.grape == '4'
+        if: matrix.ruby != 'ruby-head'
         with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
           file: coverage/lcov/grape-rabl.lcov
           format: lcov
+          flag-name: test-${{ strategy.job-index }}
+          parallel: true
+  coverage:
+    name: Finish Coveralls
+    needs: test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: coverallsapp/github-action@v2
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          parallel-finished: true
   lint:
     runs-on: ubuntu-latest
     steps:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0b7333e..09cd4af 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 * Your contribution here.
 
+* [#56](https://github.com/ruby-grape/grape-rabl/pull/56): Merge Coveralls coverage across the stable Ruby/Grape matrix and refresh the coverage badge - [@dblock](https://github.com/dblock).
 * [#55](https://github.com/ruby-grape/grape-rabl/pull/55): Replace deprecated `Tilt::Cache` with a synchronized Hash cache for templates and layouts - [@dblock](https://github.com/dblock).
 * [#54](https://github.com/ruby-grape/grape-rabl/pull/54): Replaced Travis CI with GitHub Actions, modernized RuboCop and coverage reporting, and added a Ruby 2.7-4.0/Grape 1.x-4.x compatibility matrix; Ruby 2.7 or newer is now required - [@dblock](https://github.com/dblock).
 * [#54](https://github.com/ruby-grape/grape-rabl/pull/54): Fixed fallback rendering with newer Grape versions, including Grape 4.x - [@dblock](https://github.com/dblock).
diff --git a/README.md b/README.md
index 99000b6..f36a4fe 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ Use [Rabl](https://github.com/nesquena/rabl) templates in [Grape](https://github
 [![Gem Version](http://img.shields.io/gem/v/grape-rabl.svg)](http://badge.fury.io/rb/grape-rabl)
 [![Build Status](https://github.com/ruby-grape/grape-rabl/actions/workflows/test.yml/badge.svg)](https://github.com/ruby-grape/grape-rabl/actions/workflows/test.yml)
 [![Code Climate](https://codeclimate.com/github/ruby-grape/grape-rabl.svg)](https://codeclimate.com/github/ruby-grape/grape-rabl)
-[![Coverage Status](https://img.shields.io/coveralls/ruby-grape/grape-rabl.svg)](https://coveralls.io/r/ruby-grape/grape-rabl?branch=master)
+[![Coverage Status](https://coveralls.io/repos/github/ruby-grape/grape-rabl/badge.svg?branch=master)](https://coveralls.io/github/ruby-grape/grape-rabl?branch=master)
 
 # Table of Contents
 
@@ -214,6 +214,8 @@ end
 
 ## Specs
 
+Spec runs generate `coverage/lcov/grape-rabl.lcov` with SimpleCov. CI merges coverage from every stable Ruby/Grape matrix job in Coveralls using the built-in GitHub token; ruby-head remains experimental and does not publish coverage.
+
 See ["Writing Tests"](https://github.com/ruby-grape/grape#writing-tests) in [grape](https://github.com/ruby-grape/grape) README.
 
 Enjoy :)