flake: move nix to folder to nix/

1 files changed, 58 insertions, 0 deletions

diff --git a/nix/derivation.nix b/nix/derivation.nix
new file mode 100644
index 0000000..061baea
--- /dev/null
+++ b/nix/derivation.nix
@@ -0,0 +1,58 @@
+{
+  lib,
+  stdenv,
+  naersk,
+  CoreFoundation,
+  Security,
+  SystemConfiguration,
+  self,
+  lto ? false,
+  optimizeSize ? false,
+}: let
+  filter = path: type: let
+    path' = toString path;
+    base = baseNameOf path';
+    parent = baseNameOf (dirOf path');
+
+    dirBlocklist = ["parts"];
+
+    matches = lib.any (suffix: lib.hasSuffix suffix base) [".rs"];
+    isCargo = base == "Cargo.lock" || base == "Cargo.toml";
+    isCopypasta = parent == "copypastas";
+    isAllowedDir = !(builtins.elem base dirBlocklist);
+  in
+    (type == "directory" && isAllowedDir) || matches || isCargo || isCopypasta;
+
+  filterSource = src:
+    lib.cleanSourceWith {
+      src = lib.cleanSource src;
+      inherit filter;
+    };
+in
+  naersk.buildPackage {
+    pname = "teawiebot";
+    version = builtins.substring 0 8 self.lastModifiedDate or "dirty";
+
+    src = filterSource ../.;
+
+    buildInputs = lib.optionals stdenv.hostPlatform.isDarwin [
+      CoreFoundation
+      Security
+      SystemConfiguration
+    ];
+
+    GIT_SHA = builtins.substring 0 7 self.rev or "dirty";
+
+    RUSTFLAGS =
+      lib.optionalString lto " -C lto=thin -C embed-bitcode=yes"
+      + lib.optionalString optimizeSize " -C codegen-units=1 -C strip=symbols -C opt-level=z";
+
+    meta = with lib; {
+      mainProgram = "teawiebot";
+      description = "funni bot";
+      homepage = "https://github.com/getchoo/teawiebot";
+      license = licenses.mit;
+      platforms = with platforms; linux ++ darwin;
+      maintainers = with maintainers; [getchoo];
+    };
+  }