chore: add some tests

Also, wrap `nix-buildkite` so that `nix-instantiate` is in the path when it runs. (Previously, `nix-buildkite` assumed that `nix` was installed and in the user's path.) Signed-off-by: Drew Hess <[email protected]>
hackworthltd · Oct 11, 2023 · a5f2d2a · a5f2d2a
1 parent 95df048
commit a5f2d2a
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Showing 15 changed files with 569 additions and 4 deletions.
diff --git a/flake.nix b/flake.nix
@@ -153,13 +153,15 @@
             };
 
           packages = {
-            inherit (pkgs) nix-buildkite;
+            inherit (pkgs) nix-buildkite nix-buildkite-unwrapped;
           } // (pkgs.lib.optionalAttrs (system == "x86_64-linux") {
             inherit (pkgs) nix-buildkite-docker-image;
           })
           // haskellNixFlake.packages;
 
-          checks = haskellNixFlake.checks;
+          checks = {
+            inherit (pkgs) nix-buildkite-tests;
+          } // haskellNixFlake.checks;
 
           apps =
             let
@@ -246,6 +248,7 @@
                     nodejs-18_x
 
                     nixpkgs-fmt
+                    goldplate
                   ]);
 
                   shellHook = ''
@@ -297,12 +300,41 @@
                 };
               };
 
+              nix-buildkite-unwrapped = nixBuildkiteFlake.packages."nix-buildkite-plugin:exe:nix-buildkite";
+
+              nix-buildkite = final.stdenv.mkDerivation {
+                name = "nix-buildkite";
+                src = ./.;
+                nativeBuildInputs = [
+                  final.makeWrapper
+                ];
+                installPhase = ''
+                  mkdir -p $out/bin
+                  makeWrapper ${nix-buildkite-unwrapped}/bin/nix-buildkite $out/bin/nix-buildkite \
+                    --suffix PATH : ${final.lib.makeBinPath [final.nix]}
+                '';
+
+                meta = with final.lib; {
+                  description = "Create Buildkite pipelines from Nix attributes.";
+                  homepage = "https://github.com/hackworthltd/nix-buildkite-plugin";
+                  license = licenses.bsd3;
+                  platforms = platforms.all;
+                  mainProgram = "nix-buildkite";
+                };
+              };
+
+              nix-buildkite-tests = final.callPackage ./nix/pkgs/nix-buildkite-tests {
+                src = ./tests;
+              };
             in
             {
+              inherit nix-buildkite-unwrapped;
+              inherit nix-buildkite;
               inherit nix-buildkite-plugin;
-
-              nix-buildkite = nixBuildkiteFlake.packages."nix-buildkite-plugin:exe:nix-buildkite";
               inherit nix-buildkite-docker-image;
+
+              inherit (final.haskellPackages) goldplate;
+              inherit nix-buildkite-tests;
             }
           );
 

diff --git a/nix/pkgs/nix-buildkite-tests/default.nix b/nix/pkgs/nix-buildkite-tests/default.nix
@@ -0,0 +1,18 @@
+{ goldplate
+, nix-buildkite
+, runCommand
+, src
+}:
+runCommand "nix-buildkite-tests"
+{
+  inherit src;
+  nativeBuildInputs = [
+    goldplate
+    nix-buildkite
+  ];
+} ''
+  set -e
+  cd $src
+  goldplate -j2 --pretty-diff .
+  touch $out
+''
diff --git a/tests/default.nix b/tests/default.nix
@@ -0,0 +1 @@
+(import ./flake-compat.nix).defaultNix
diff --git a/tests/flake-compat.nix b/tests/flake-compat.nix
@@ -0,0 +1,9 @@
+let
+  lock = builtins.fromJSON (builtins.readFile ./flake.lock);
+  inherit (lock.nodes.flake-compat.locked) owner repo rev narHash;
+  flake-compat = builtins.fetchTarball {
+    url = "https://github.com/${owner}/${repo}/archive/${rev}.tar.gz";
+    sha256 = narHash;
+  };
+in
+import flake-compat { src = ./.; }