Use GitHub Actions

.github/workflows/macos.yml

@@ -0,0 +1,22 @@
+name: macos
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: macos-latest
+    strategy:
+      matrix:
+        ruby: [ '2.6.x', '2.5.x', '2.4.x' ]
+    steps:
+    - uses: actions/checkout@master
+    - name: Set up Ruby
+      uses: actions/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby }}
+    - name: Set up Bundler
+      run: gem install bundler --no-document
+    - name: Install dependencies
+      run: bundle install
+    - name: Run test
+      run: rake

.github/workflows/ubuntu-rvm.yml

@@ -0,0 +1,37 @@
+name: ubuntu-rvm
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ruby: [ 'ruby-head' ]
+      fail-fast: false
+    steps:
+    - uses: actions/checkout@master
+    - name: Install packages
+      run: |
+        sudo apt update -qy
+        sudo apt install zlib1g-dev
+    - name: Set up RVM
+      run: |
+        curl -sSL https://get.rvm.io | bash
+    - name: Set up Ruby
+      run: |
+        source $HOME/.rvm/scripts/rvm
+        rvm install ${{ matrix.ruby }} --binary
+        rvm --default use ${{ matrix.ruby }}
+    - name: Set up Bundler
+      run: |
+        source $HOME/.rvm/scripts/rvm
+        gem install bundler --no-document
+    - name: Install dependencies
+      run: |
+        source $HOME/.rvm/scripts/rvm
+        bundle install
+    - name: Run test
+      run: |
+        source $HOME/.rvm/scripts/rvm
+        rake

.github/workflows/ubuntu.yml

@@ -0,0 +1,26 @@
+name: ubuntu
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ruby: [ '2.6.x', '2.5.x', '2.4.x' ]
+    steps:
+    - uses: actions/checkout@master
+    - name: Install packages
+      run: |
+        sudo apt update -qy
+        sudo apt install zlib1g-dev
+    - name: Set up Ruby
+      uses: actions/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby }}
+    - name: Set up Bundler
+      run: gem install bundler --no-document
+    - name: Install dependencies
+      run: bundle install
+    - name: Run test
+      run: rake

README.md

@@ -1,7 +1,5 @@
 # Zlib
 
-[![Build Status](https://travis-ci.org/ruby/zlib.svg?branch=master)](https://travis-ci.org/ruby/zlib)
-
 This module provides access to the {zlib library}[http://zlib.net]. Zlib is designed to be a portable, free, general-purpose, legally unencumbered -- that is, not covered by any patents -- lossless data-compression library for use on virtually any computer hardware and operating system.
 
 The zlib compression library provides in-memory compression and decompression functions, including integrity checks of the uncompressed data.