replace travis config with gh actions

.github/CONTRIBUTING.md

@@ -1,37 +1,44 @@
 ## Contributing
 
-You can run the test suite against a live server by running `script/test`. It
-automatically starts a test server in background. Only tests in
-`test/adapters/*_test.rb` require a server, though.
+In Faraday we always welcome new ideas and features, however we also have to ensure
+that the overall code quality stays on reasonable levels.
+For this reason, before adding any contribution to Faraday, we highly recommend reading this
+quick guide to ensure your PR can be reviewed and approved as quickly as possible.
  
-``` sh
-# setup development dependencies
-$ script/bootstrap
+We are pushing towards a 1.0 release, when we will have to follow [Semantic
+Versioning][semver]. If your patch includes changes to break compatibility,
+note that so we can add it to the [Changelog][].
 
-# run the whole suite
-$ script/test
 
-# run only specific files
-$ script/test excon patron
+### Required Checks
 
-# run tests using SSL
-$ SSL=yes script/test
+Before pushing your code and opening a PR, we recommend you run the following checks to avoid
+our GitHub Actions Workflow to block your contribution.
+
+```bash
+# Run unit tests and check code coverage
+$ bundle exec rspec
+
+# Run Rubocop and check code style
+$ bundle exec rubocop
 ```
 
+
 ### New Features
 
-When adding a feature Faraday:
+When adding a feature in Faraday:
 
 1. also add tests to cover your new feature.
 2. if the feature is for an adapter, the **attempt** must be made to add the same feature to all other adapters as well.
-3. start opening an issue describing how the new feature will work, and only after receiving the green light by the core team start working on the PR.
+3. start opening an issue describing how the new feature will work, and only after receiving
+the green light by the core team start working on the PR.
 
-### New Middlewares
+
+### New Middleware
 
 We will accept middleware that:
 
-1. is useful to a broader audience, but can be implemented relatively
-   simple; and
+1. is useful to a broader audience, but can be implemented relatively simple; and
 2. which isn't already present in [faraday_middleware][] project.
 
 
@@ -43,10 +50,26 @@ We will accept adapters that:
 1. are proven and may have better performance than existing ones; or
 2. if they have features not present in included adapters.
 
-We are pushing towards a 1.0 release, when we will have to follow [Semantic
-Versioning][semver].  If your patch includes changes to break compatibility,
-note that so we can add it to the [Changelog][].
+
+### Changes to Faraday Website
+
+The [Faraday Website][website] is included in the Faraday repository, under the `/docs` folder.
+If you want to apply changes to it, please test it locally using `Jekyll`.
+
+```bash
+# Navigate into the /docs folder
+$ cd docs
+
+# Install Jekyll dependencies, this bundle is different from Faraday's one.
+$ bundle install
+
+# Run the Jekyll server with the Faraday website
+$ bundle exec jekyll serve
+
+# The site will now be reachable at http://127.0.0.1:4000/faraday/
+```
 
 [semver]:               http://semver.org/
 [changelog]:            https://github.com/lostisland/faraday/releases
-[faraday_middleware]: https://github.com/lostisland/faraday_middleware/wiki
+[faraday_middleware]:   https://github.com/lostisland/faraday_middleware
+[website]:              https://lostisland.github.io/faraday

.github/workflows/ci.yml

@@ -0,0 +1,73 @@
+name: CI
+
+on:
+  pull_request:
+
+  push:
+    branches: [master]
+
+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 $?
+      continue-on-error: true

.travis.yml

@@ -1,53 +0,0 @@
-language: ruby
-script: bundle exec script/test
-
-rvm:
-  - 1.9.3
-  - 2.0.0
-  - 2.1.10
-  - 2.2.10
-  - 2.3.8
-  - 2.4.5
-  - 2.5.3
-  - 2.6.0
-  - ruby-head
-  - jruby-19mode
-  - jruby-20mode
-  - jruby-21mode
-  - jruby-head
-
-before_install:
-  - |
-    export RVM_CURRENT=`rvm current|cut -c6-8`
-    if [ "${RVM_CURRENT}" == "2.2" ]; then
-      gem install bundler -v '< 2'
-    fi
-
-matrix:
-  allow_failures:
-    # "A fatal error has been detected by the Java Runtime Environment:
-    #  Internal Error (sharedRuntime.cpp:843)"
-    - rvm: jruby-19mode
-    - rvm: jruby-20mode
-    - rvm: jruby-21mode
-    - rvm: jruby-head
-    - rvm: ruby-head
-  fast_finish: true
-
-env:
-  matrix:
-    - SSL=no
-    - SSL=yes
-  global:
-    - JRUBY_OPTS="$JRUBY_OPTS --debug"
-deploy:
-  provider: rubygems
-  api_key:
-    secure: EqbOu9BQp5jkivJ8qvTo89f3J49KOByBueU3XulrJ2Kqm/ov4RDFsmp9/uHAnSLdmKSkzZaeq79t1AUNfKGX1ZqkKgq/Nw2BKGFnh5ZOjrkrRZR1Vm09OHxqiViEbtg+jZ8VOLY/iDFEkNIzuj9/H3iHGXC0XiKH2LTHOFH63Bs=
-  gem: faraday
-  on:
-    tags: true
-    repo: lostisland/faraday
-    rvm: 2.4.5
-    condition: '"$SSL" = "yes"'
-