Replace Travis CI with GH Actions

Author: ligurio

.github/workflows/build.yaml

@@ -0,0 +1,38 @@
+name: Building
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  run:
+    name: Run
+    runs-on: [ubuntu-latest]
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+
+    - name: Setup Java
+      uses: actions/setup-java@v2
+      with:
+        java-version: '12'
+        distribution: 'zulu'
+
+    - name: Setup Clojure tools
+      uses: DeLaGuardo/[email protected]
+      with:
+        cli: 1.10.1.693 # Clojure CLI based on tools.deps
+        lein: 2.9.1     # or use 'latest' to always provision latest version of leiningen
+        boot: 2.8.3     # or use 'latest' to always provision latest version of boot
+
+    - name: Run Clojure code
+      run: clojure -e '(+ 1 1)'
+      shell: bash
+
+    - run: lein -v
+
+    - run: lein deps
+
+    - run: lein check
+
+    - run: lein compile

.travis.yml

@@ -1,5 +1,7 @@
 # Tarantool Jepsen Test
 
+[![Building](https://github.com/tarantool/jepsen.tarantool/actions/workflows/build.yaml/badge.svg)](https://github.com/tarantool/jepsen.tarantool/actions/workflows/build.yaml)
+
 This is a test suite, written using the [Jepsen distributed systems testing
 library](https://jepsen.io), for
 [Tarantool](https://github.com/tarantool/tarantool). It provides a single