naersk (#2)

* Switch to nmattia/naersk (but without overlay)

* Restore the overlay

.gitignore

@@ -1 +1,2 @@
 /target
+/result

flake.lock

@@ -17,21 +17,6 @@
       }
     },
     "flake-utils": {
-      "locked": {
-        "lastModified": 1617631617,
-        "narHash": "sha256-PARRCz55qN3gy07VJZIlFeOX420d0nGF0RzGI/9hVlw=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "b2c27d1a81b0dc266270fa8aeecebbd1807fc610",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
-    "flake-utils_2": {
       "locked": {
         "lastModified": 1614513358,
         "narHash": "sha256-LakhOx3S1dRjnh0b5Dg3mbZyH0ToC9I8Y2wKSkBaTzU=",
@@ -46,7 +31,39 @@
         "type": "github"
       }
     },
+    "naersk": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1614785451,
+        "narHash": "sha256-TPw8kQvr2UNCuvndtY+EjyXp6Q5GEW2l9UafXXh1XmI=",
+        "owner": "nmattia",
+        "repo": "naersk",
+        "rev": "e0fe990b478a66178a58c69cf53daec0478ca6f9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nmattia",
+        "repo": "naersk",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
+      "locked": {
+        "lastModified": 1617833390,
+        "narHash": "sha256-puAjU8RcmfqrPYnOuDvESPgA+QtaszUKJZ7jrjnk7iU=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "87df3e15f029f44a3dca474907a3c02bcbe03414",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "nixpkgs_2": {
       "locked": {
         "lastModified": 1617636226,
         "narHash": "sha256-iZhBWrOR2DoDs1C+0FlnM9AQLMol/qoGQ+d+S43CKJM=",
@@ -62,7 +79,7 @@
         "type": "github"
       }
     },
-    "nixpkgs_2": {
+    "nixpkgs_3": {
       "locked": {
         "lastModified": 1617325113,
         "narHash": "sha256-GksR0nvGxfZ79T91UUtWjjccxazv6Yh/MvEJ82v1Xmw=",
@@ -80,15 +97,16 @@
     "root": {
       "inputs": {
         "flake-compat": "flake-compat",
-        "flake-utils": "flake-utils",
+        "naersk": "naersk",
-        "nixpkgs": "nixpkgs",
+        "nixpkgs": "nixpkgs_2",
-        "rust-overlay": "rust-overlay"
+        "rust-overlay": "rust-overlay",
+        "utils": "utils"
       }
     },
     "rust-overlay": {
       "inputs": {
-        "flake-utils": "flake-utils_2",
+        "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs_2"
+        "nixpkgs": "nixpkgs_3"
       },
       "locked": {
         "lastModified": 1617762447,
@@ -103,6 +121,21 @@
         "repo": "rust-overlay",
         "type": "github"
       }
+    },
+    "utils": {
+      "locked": {
+        "lastModified": 1617631617,
+        "narHash": "sha256-PARRCz55qN3gy07VJZIlFeOX420d0nGF0RzGI/9hVlw=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "b2c27d1a81b0dc266270fa8aeecebbd1807fc610",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
     }
   },
   "root": "root",

flake.nix

@@ -4,36 +4,51 @@
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
     rust-overlay.url = "github:oxalica/rust-overlay";
-    flake-utils.url = "github:numtide/flake-utils";
+    utils.url = "github:numtide/flake-utils";
+    naersk.url = "github:nmattia/naersk";
     flake-compat = {
       url = "github:edolstra/flake-compat";
       flake = false;
     };
   };
 
-  outputs = { self, nixpkgs, flake-utils, rust-overlay, flake-compat }:
+  outputs = { self, nixpkgs, utils, rust-overlay, naersk, ... }:
-    flake-utils.lib.eachDefaultSystem
+    utils.lib.eachDefaultSystem
       (system:
-        let pkgs = import nixpkgs {
+        let 
+          pkgs = import nixpkgs {
             inherit system;
-          overlays = [ rust-overlay.overlay ];
+            overlays = [ 
-        }; in
+              rust-overlay.overlay
-        {
+              (self: super: {
-          devShell = pkgs.mkShell {
+                # Because rust-overlay bundles multple rust packages into one
-            nativeBuildInputs = [
+                # derivation, specify that mega-bundle here, so that naersk
-              (pkgs.rust-bin.stable.latest.default.override {
+                # will use them automatically.
-                extensions = [
+                rustc = self.rust-bin.stable.latest.default;
-                  "rust-src"
+                cargo = self.rust-bin.stable.latest.default;
-                  "cargo"
-                  "rustc"
-                  "rls"
-                  "rust-analysis"
-                  "rustfmt"
-                  "clippy"
-                ];
               })
             ];
           };
+          naersk-lib = naersk.lib."${system}";
+        in rec {
+          # `nix build`
+          packages.bouncy = naersk-lib.buildPackage {
+            pname = "bouncy";
+            root = ./.;
+          };
+          defaultPackage = packages.bouncy;
+
+          # `nix run`
+          apps.bouncy = utils.lib.mkApp {
+            drv = packages.bouncy;
+          };
+          defaultApp = apps.bouncy;
+
+          # `nix develop`
+          devShell = pkgs.mkShell {
+            nativeBuildInputs = with pkgs; [ rustc cargo ];
+            RUST_SRC_PATH = "${pkgs.rust.packages.stable.rustPlatform.rustLibSrc}";
+          };
         }
       );
 }