Define gitlab CI

.gitlab-ci.yml

@@ -0,0 +1,20 @@
+stages:
+    - test
+
+unit_tests:
+    stage: test
+    before_script:
+        - 'apk update'
+        - 'apk add make rsync'
+    script:
+        - make test
+
+shellcheck:
+    stage: test
+    before_script:
+        - 'apk update'
+        - 'apk add make'
+        - 'wget https://storage.googleapis.com/shellcheck/shellcheck-stable.linux.x86_64.tar.xz'
+        - 'tar xf shellcheck-stable.linux.x86_64.tar.xz && mv shellcheck-stable/shellcheck /usr/bin/'
+    script:
+        - make shellcheck