Merge pull request #333 from prometheus/remove-circleci

Replace CircleCI with GitHub Actions

Author: SuperQ

.circleci/config.yml

@@ -0,0 +1,47 @@
+---
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    name: Ruby ${{ matrix.ruby-version }}
+    runs-on: ubuntu-24.04
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby-version:
+          - "3.2"
+          - "3.3"
+          - "3.4"
+          - "4.0"
+          - "jruby-9.4"
+          - "jruby-10.0.2.0"
+
+    steps:
+      - name: Check out
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          persist-credentials: false
+
+      - name: Set up Ruby ${{ matrix.ruby-version }}
+        uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+        with:
+          ruby-version: ${{ matrix.ruby-version }}
+          bundler-cache: true
+          cache-version: ${{ matrix.ruby-version }}
+
+      - name: Run specs
+        run: bundle exec rake

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ Any Ruby version that has not received an End-of-Life notice (e.g.
 is supported.
 
 To ensure we're meeting these guidelines, we test the client against all
-supported versions, as specified in our [build matrix](.circleci/config.yml).
+supported versions, as specified in our [build matrix](.github/workflows/ci.yml).
 
 # Deprecation
 

COMPATIBILITY.md

@@ -5,7 +5,7 @@ through a HTTP interface. Intended to be used together with a
 [Prometheus server][1].
 
 [![Gem Version][4]](http://badge.fury.io/rb/prometheus-client)
-[![Build Status][3]](https://circleci.com/gh/prometheus/client_ruby/tree/main.svg?style=svg)
+[![Build Status][3]](https://github.com/prometheus/client_ruby/actions/workflows/ci.yml)
 
 ## Usage
 
@@ -504,7 +504,7 @@ rake
 
 [1]: https://github.com/prometheus/prometheus
 [2]: http://rack.github.io/
-[3]: https://circleci.com/gh/prometheus/client_ruby/tree/main.svg?style=svg
+[3]: https://github.com/prometheus/client_ruby/actions/workflows/ci.yml/badge.svg
 [4]: https://badge.fury.io/rb/prometheus-client.svg
 [8]: https://github.com/prometheus/pushgateway
 [9]: lib/prometheus/middleware/exporter.rb