build: switching to Nix flake

.envrc

@@ -1 +1 @@
-use nix
+use flake

commitlint.config.js

@@ -1,3 +1,6 @@
 module.exports = {
     extends: ["@commitlint/config-conventional"],
+    rules: {
+      "body-max-line-length": [0],
+    },
 };

flake.lock

@@ -0,0 +1,42 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1638122382,
+        "narHash": "sha256-sQzZzAbvKEqN9s0bzWuYmRaA03v40gaJ4+iL1LXjaeI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "74f7e4319258e287b0f9cb95426c9853b282730b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1638806821,
+        "narHash": "sha256-v2qd2Bsmzft53s43eCbN+4ocrLksRdFLyF/MAGuWuDA=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "bc5d68306b40b8522ffb69ba6cff91898c2fbbff",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "ref": "nixos-unstable",
+        "type": "indirect"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,17 @@
+{
+  description = "A .NET core library for building tools";
+
+  inputs = {
+    nixpkgs.url = "nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let pkgs = nixpkgs.legacyPackages.${system};
+      in {
+        devShell = pkgs.mkShell {
+          buildInputs = [ pkgs.dotnet-sdk_5 pkgs.nodejs-16_x pkgs.nixfmt ];
+        };
+      });
+}

release.config.js

@@ -1,4 +1,5 @@
 module.exports = {
+  extends: ["@commitlint/config-conventional"],
   branches: ["main"],
   message: "chore(release): v${nextRelease.version} [skip ci]\n\n${nextRelease.notes}",
   plugins: [
@@ -10,7 +11,12 @@ module.exports = {
     ],
     "@semantic-release/release-notes-generator",
     "@semantic-release/npm",
-    "semantic-release-dotnet",
+    [
+      "semantic-release-dotnet",
+      {
+        paths: ["src/Directory.Build.props"],
+      },
+    ],
     [
       "semantic-release-nuget",
       {

shell.nix

@@ -1,17 +0,0 @@
-let
-  sources = import ./nix/sources.nix;
-  pkgs = import sources.nixpkgs {};
-in
-pkgs.mkShell {
-  buildInputs = [
-    pkgs.git
-    pkgs.nodejs-16_x
-    pkgs.yarn
-    pkgs.dotnet-sdk_5
-    pkgs.niv
-  ];
-
-  shellHooks = ''
-    export DOTNET_CLI_TELEMETRY_OPTOUT=true
-  '';
-}