From 56ed66420489a157d4ccc065d32d5b5e6eac81a2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=98ystein=20Tveit?= <oysteikt@pvv.ntnu.no>
Date: Wed, 25 Dec 2024 15:37:49 +0100
Subject: [PATCH] flake.nix: init

---
 .envrc     |  1 +
 flake.lock | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 flake.nix  | 35 +++++++++++++++++++++++++++++
 3 files changed, 102 insertions(+)
 create mode 100644 .envrc
 create mode 100644 flake.lock
 create mode 100644 flake.nix

diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..3550a30
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..b4aef05
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,66 @@
+{
+  "nodes": {
+    "fenix": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "rust-analyzer-src": "rust-analyzer-src"
+      },
+      "locked": {
+        "lastModified": 1715581585,
+        "narHash": "sha256-/JjvIn1NXW3yOaDcD8Me987/QcXjo+rhg+uThasPAnI=",
+        "owner": "nix-community",
+        "repo": "fenix",
+        "rev": "2c4905096782e8e908205e7fa54ef987fba62793",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "fenix",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1715534503,
+        "narHash": "sha256-5ZSVkFadZbFP1THataCaSf0JH2cAH3S29hU9rrxTEqk=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "2057814051972fa1453ddfb0d98badbea9b83c06",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "fenix": "fenix",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "rust-analyzer-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1715255944,
+        "narHash": "sha256-vLLgYpdtKBaGYTamNLg1rbRo1bPXp4Jgded/gnprPVw=",
+        "owner": "rust-lang",
+        "repo": "rust-analyzer",
+        "rev": "5bf2f85c8054d80424899fa581db1b192230efb5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "rust-lang",
+        "ref": "nightly",
+        "repo": "rust-analyzer",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..5d70659
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,35 @@
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    fenix.url = "github:nix-community/fenix";
+    fenix.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  outputs = { self, nixpkgs, fenix }@inputs:
+  let
+    systems = [
+      "x86_64-linux"
+      "aarch64-linux"
+      "x86_64-darwin"
+      "aarch64-darwin"
+    ];
+    forAllSystems = f: nixpkgs.lib.genAttrs systems (system: let
+      toolchain = fenix.packages.${system}.complete;
+      pkgs = import nixpkgs {
+        inherit system;
+        overlays = [
+          (_: super: let pkgs = fenix.inputs.nixpkgs.legacyPackages.${system}; in fenix.overlays.default pkgs pkgs)
+        ];
+      };
+    in f system pkgs toolchain);
+  in {
+    devShell = forAllSystems (system: pkgs: toolchain: pkgs.mkShell {
+      packages = [
+        (toolchain.withComponents [
+          "cargo" "rustc" "rustfmt" "clippy"
+        ])
+      ];
+      RUST_SRC_PATH = "${toolchain.rust-src}/lib/rustlib/src/rust/library";
+    });
+  };
+}