adding regression action.

.github/workflows/build.yml

@@ -0,0 +1,29 @@
+name: Flake build
+
+# Controls when the action will run.
+on:
+  # Triggers the workflow on push or pull request events but only for the main branch
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+
+      # Checks-out the repository under $GITHUB_WORKSPACE, so your job can access it
+      - name: Checkout repo
+        uses: actions/checkout@v2
+
+      # Runs the flake
+      - name: Build
+        run: | nix build

flake.nix

@@ -32,14 +32,29 @@
         mathcomp-extra' = mathcomp-extra.mkDrv
           { inherit coqPackages coq; version = "0.1.0"; };
       in {
-        devShell = pkgs.mkShell {
-          packages =
+        packages.default = coqPackages.mkCoqDerivation {
+          pname = "vRATLS";
+          owner = "Barkhausen-Institut";
+          version = "0.0.1";
+
+          src = ./.;
+
+          buildInputs =
             (with ocamlPackages; [ dune_3 ])
             ++
             (with pkgs; [coq gnumake])
             ++
             [ssprove' mathcomp-extra'];
 
+          meta = {
+            description = "Formal verification of remote attestation";
+            license = coqPackages.lib.licenses.mit;
+          };
+       };
+
+        devShells.default = pkgs.mkShell {
+          inputsFrom = [self.packages.${system}.default];
+
           shellHook = ''
                     alias ll="ls -lasi"
                     alias spacemacs="HOME=. emacs"