flake: setup flake.nix

.gitignore

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

flake.lock

@@ -0,0 +1,60 @@
+{
+  "nodes": {
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1606424373,
+        "narHash": "sha256-oq8d4//CJOrVj+EcOaSXvMebvuTkmBJuT5tzlfewUnQ=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "99f1c2157fba4bfe6211a321fd0ee43199025dbf",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "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"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1617929752,
+        "narHash": "sha256-ji0nqJUZp2bfHvO0sKxD24cW6Nk7LyjbPPMxjbJHji0=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "6fc2b7ecc2a167ce6a6902d5417daf1fa5cac777",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,58 @@
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+    flake-compat = {
+      url = "github:edolstra/flake-compat";
+      flake = false;
+    };
+  };
+
+  outputs = { self, nixpkgs, flake-utils, ... }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs { inherit system; };
+      in
+      {
+        defaultPackage = pkgs.rustPlatform.buildRustPackage {
+          pname = "bad-news";
+          version = "0.1.0";
+
+          src = ./.;
+
+          cargoSha256 = "sha256-nWEWOY1F0TsVW5DHm2p8eOABF97Wku7Grw0Vsd79syU=";
+
+          meta = with pkgs.lib; {
+            description = "A Matrix bot, bringer of bad news";
+            homepage = "https://github.com/alarsyo/bad-news";
+            license = with licenses; [ mit asl20 ];
+            platforms = platforms.unix;
+          };
+
+          nativeBuildInputs = with pkgs; [ pkg-config cmake ];
+          buildInputs = with pkgs; [ systemd openssl ];
+        };
+
+        defaultApp = flake-utils.lib.mkApp {
+          drv = self.defaultPackage."${system}";
+        };
+
+        devShell = pkgs.mkShell {
+          buildInputs = with pkgs; [
+            cargo
+            clippy
+            nixpkgs-fmt
+            rustPackages.clippy
+            rustc
+            rustfmt
+
+            pkg-config
+            cmake
+            systemd
+            openssl
+          ];
+
+          RUST_SRC_PATH = pkgs.rustPlatform.rustLibSrc;
+        };
+      });
+}