chore(nix): adds nightly pkg option

Author: cristianoliveira

Makefile

@@ -51,7 +51,7 @@ nix-build-local: ## Build the nix derivation with the local toolchain
 
 .PHONY: nix-build
 nix-build: ## Build the nix derivation with the nightly toolchain
-	@nix build .#funzzy --verbose -L
+	@nix build .# --verbose -L
 
 .PHONY: nix-bump
 nix-bump:

README.md

@@ -108,6 +108,11 @@ nix profile install 'github:cristianoliveira/funzzy'
 nix profile install 'github:cristianoliveira/nixpkgs#funzzy'
 ```
 
+Install nightly version:
+```bash
+nix profile install 'github:cristianoliveira/funzzy#nightly'
+```
+
 or, if you use `shell.nix`:
 
   ```nix

nix/package-nightly.nix

@@ -0,0 +1,33 @@
+{ lib , rustPlatform , fetchFromGitHub , stdenv , darwin }:
+
+rustPlatform.buildRustPackage rec {
+  pname = "funzzy";
+  version = "master";
+
+  src = fetchFromGitHub {
+    owner = "cristianoliveira";
+    repo = "funzzy";
+    rev = "${version}";
+    hash = "sha256-NzO6vAyVQlocIXitZkLPd1b9IujbmOfzUA1AXlAJLrg=";
+  };
+
+  cargoHash = "sha256-Rs0l7361BtuhV0DsMfeyKe/ryoCZaLWBnrpuVNeRKhU=";
+
+  # When installing from source only run unit tests
+  checkPhase = ''
+    cargo test $UNIT_TEST --lib
+  '';
+
+  buildInputs = lib.optionals stdenv.isDarwin [
+    darwin.apple_sdk.frameworks.CoreServices
+  ];
+
+  meta = with lib; {
+    description = "A lightweight watcher";
+    homepage = "https://github.com/cristianoliveira/funzzy";
+    changelog = "https://github.com/cristianoliveira/funzzy/releases";
+    license = licenses.mit;
+    maintainers = with maintainers; [ cristianoliveira ];
+  };
+}
+

packages.nix

@@ -2,4 +2,5 @@
 {
   default = pkgs.callPackage ./nix/package.nix { };
   local = pkgs.callPackage ./nix/package-from-source.nix { };
+  nightly = pkgs.callPackage ./nix/package-nightly.nix { };
 }