add haskell.nix build system

it's an annoying blockchain company, but apparently that thing is the
only usable option to build stack things with nix without having to
redefine all the (outdated) haskell packages in nixpkgs?

1 files changed, 42 insertions, 0 deletions

diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..deea282
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,42 @@
+let
+  sources = import ./nix/sources.nix {};
+  haskellNix = import sources.haskellNix {};
+
+  # Import nixpkgs and pass the haskell.nix provided nixpkgsArgs
+  pkgs = import
+    # use haskell.nix's nixpkgs, which may (?) have more substitutes available
+    haskellNix.sources.nixpkgs-unstable
+    # args for nixpkgs; includes the haskell.nix overlay
+    (haskellNix.nixpkgsArgs // { system = "x86_64-linux"; });
+
+  drvs = pkgs.haskell-nix.project {
+   # 'cleanGit' cleans a source directory based on the files known by git
+   src = pkgs.haskell-nix.haskellLib.cleanGit {
+     src = ./.;
+     name = "walint";
+   };
+   modules = [{
+     packages.walint.components.exes = {
+       # don't include gcc or ghc in the dependency closure …
+       walint-server.dontStrip = false;
+       walint.dontStrip = false;
+     };
+   }];
+   stack-sha256 = "16ilij2cygmwbdmjdzj6yl4yv7zi4qzwg7rxkxgp0hbjpkz6n42y";
+  };
+in
+{
+  walint = drvs.walint.components.exes.walint;
+  walint-server = pkgs.stdenvNoCC.mkDerivation {
+    name = "walint-server-with-assets";
+    src = drvs.walint.components.exes.walint-server;
+    phases = [ "buildPhase" ];
+    buildPhase = ''
+      mkdir -p $out
+      cp -r $src/* $out
+      cp -r ${pkgs.copyPathToStore ./static} $out/static
+      cp ${pkgs.copyPathToStore ./config.json} $out/config.json
+      cp ${pkgs.copyPathToStore ./config.toml} $out/config.toml
+    '';
+  };
+}