Merge pull request #2 from ahrefs/martin/add-ci

Setup GitHub actions for CI

.github/workflows/dune.yml

@@ -0,0 +1,27 @@
+name: ocaml-sodium
+
+on: [push, pull_request]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+
+    - name: Set up OCaml
+      uses: ocaml/setup-ocaml@v2
+      with:
+        ocaml-compiler: 4.13.1
+        dune-cache: true
+
+    - name: Install OCaml deps
+      run: opam install . --deps-only --with-test
+
+    - name: Build
+      run: opam exec -- dune build
+
+    - name: Test
+      run: opam exec -- dune runtest

lib_test/dune

@@ -1,6 +1,6 @@
 (executable
   (name test_sodium)
-  (libraries oUnit sodium)
+  (libraries ounit2 sodium)
   (flags :standard -w -27))
 
 (alias

sodium.opam

@@ -23,12 +23,12 @@ depends: [
   "ocamlfind" {build}
   "ocamlbuild" {build}
   "ctypes" {>= "0.6.0"}
+  "ounit2" {with-test & >= "2.2.6"}
 ]
 depexts: [
-  [ ["debian"] ["libsodium-dev"] ]
-  [ ["ubuntu"] ["libsodium-dev"] ]
-  [ ["freebsd"] ["security/libsodium"] ]
-  [ ["macos" "homebrew"] ["libsodium"] ]
+   ["libsodium-dev"] {os-family = "debian"} 
+   ["security/libsodium"] {os-family = "freebsd"} 
+   ["libsodium"] {os-distribution = "homebrew" & os = "macos"} 
 ]
 post-messages: [
   "This package requires installation of libsodium-dev (>= 1.0.9)"