Use GitHub Actions for CI (#1051)

.github/CONTRIBUTING.md

@@ -13,7 +13,7 @@ note that so we can add it to the [Changelog][].
 ### Required Checks
 
 Before pushing your code and opening a PR, we recommend you run the following checks to avoid
-our CircleCI Workflow to block your contribution.
+our GitHub Actions Workflow to block your contribution.
 
 ```bash
 # Run unit tests and check code coverage

.github/workflows/ci.yml

@@ -0,0 +1,68 @@
+name: CI
+
+on: [push]
+
+env:
+  GIT_COMMIT_SHA: ${{ github.sha }}
+  GIT_BRANCH: ${{ github.ref }}
+  CC_TEST_REPORTER_ID: ${{ secrets.CC_TEST_REPORTER_ID }}
+
+jobs:
+  linting:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+
+    - name: Set up Ruby 2.6
+      uses: actions/setup-ruby@v1
+      with:
+        ruby-version: 2.6.x
+
+    - name: Rubocop
+      run: |
+        gem install rubocop rubocop-performance --no-document
+        rubocop --require rubocop-performance --format progress
+
+    - name: Yard-Junk
+      run: |
+        gem install yard-junk --no-document
+        yard-junk --path lib
+
+  build:
+    needs: [linting]
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ruby: [2.3.x, 2.4.x, 2.5.x, 2.6.x]
+
+    steps:
+    - uses: actions/checkout@v1
+
+    - name: Install dependencies
+      run: |
+        sudo apt-get install libcurl4-openssl-dev
+
+    - name: Set up Ruby
+      uses: actions/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby }}
+
+    - name: Build
+      run: |
+        gem install bundler
+        bundle install --jobs 4 --retry 3
+
+    - name: Setup Code Climate
+      if: matrix.ruby == '2.6.x'
+      run: |
+        curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter
+        chmod +x ./cc-test-reporter
+        ./cc-test-reporter before-build
+
+    - name: Test
+      run: bundle exec rake
+
+    - name: Run Code Climate Test Reporter
+      if: success() && matrix.ruby == '2.6.x'
+      run: ./cc-test-reporter after-build --coverage-input-type simplecov --exit-code $?

.github/workflows/publish.yml

@@ -0,0 +1,29 @@
+name: Publish
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  build:
+    name: Publish to Rubygems
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@master
+
+      - name: Set up Ruby 2.6
+        uses: actions/setup-ruby@v1
+        with:
+          version: 2.6.x
+
+      - name: Publish to RubyGems
+        run: |
+          mkdir -p $HOME/.gem
+          touch $HOME/.gem/credentials
+          chmod 0600 $HOME/.gem/credentials
+          printf -- "---\n:rubygems_api_key: ${GEM_HOST_API_KEY}\n" > $HOME/.gem/credentials
+          gem build faraday.gemspec
+          gem push faraday-*.gem
+        env:
+          GEM_HOST_API_KEY: ${{ secrets.RUBYGEMS_AUTH_TOKEN }}

README.md

@@ -1,7 +1,7 @@
 # ![Faraday](./docs/assets/img/repo-card-slim.png)
 
 [![Gem Version](https://badge.fury.io/rb/faraday.svg)](https://rubygems.org/gems/faraday)
-[![CircleCI](https://circleci.com/gh/lostisland/faraday/tree/master.svg?style=svg)](https://circleci.com/gh/lostisland/faraday/tree/master)
+![GitHub Actions CI](https://github.com/lostisland/faraday/workflows/CI/badge.svg)
 [![Test Coverage](https://api.codeclimate.com/v1/badges/f869daab091ceef1da73/test_coverage)](https://codeclimate.com/github/lostisland/faraday/test_coverage)
 [![Maintainability](https://api.codeclimate.com/v1/badges/f869daab091ceef1da73/maintainability)](https://codeclimate.com/github/lostisland/faraday/maintainability)
 [![Gitter](https://badges.gitter.im/lostisland/faraday.svg)](https://gitter.im/lostisland/faraday?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
@@ -18,7 +18,7 @@ Need more details? See the [Faraday API Documentation][apidoc] to see how it wor
 
 ## Supported Ruby versions
 
-This library aims to support and is [tested against][circle_ci] the following Ruby
+This library aims to support and is [tested against][actions] the following Ruby
 implementations:
 
 * Ruby 2.3+
@@ -49,7 +49,7 @@ But before you start coding, please read our [Contributing Guide][contributing]
 [faraday_team]: https://lostisland.github.io/faraday/team
 [contributing]: https://github.com/lostisland/faraday/blob/master/.github/CONTRIBUTING.md
 [apidoc]:       http://www.rubydoc.info/gems/faraday
-[circle_ci]:    https://circleci.com/gh/lostisland/faraday
+[actions]:      https://github.com/lostisland/faraday/actions
 [jruby]:        http://jruby.org/
 [rubinius]:     http://rubini.us/
 [license]:      LICENSE.md