build: Update tools

devbox.json

@@ -6,19 +6,19 @@
     "findutils@latest",
     "ginkgo@latest",
     "git@latest",
-    "path:./hack/flakes/go-mod-upgrade",
     "gnused@latest",
     "gnugrep@latest",
     "gnumake@latest",
     "go@latest",
     "gojq@latest",
-    "path:./hack/flakes/golangci-lint",
     "golines@latest",
     "goreleaser@latest",
     "gotestsum@latest",
     "kubernetes-helm@latest",
     "pre-commit@latest",
     "shfmt@latest",
-    "upx@latest"
+    "upx@latest",
+    "path:./hack/flakes#go-mod-upgrade",
+    "path:./hack/flakes#golangci-lint"
   ]
 }

hack/flakes/flake.nix

@@ -0,0 +1,34 @@
+{
+  description = "Useful flakes for golang and Kubernetes projects";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = inputs @ { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      with nixpkgs.legacyPackages.${system}; rec {
+        packages = rec {
+          golangci-lint = pkgs.golangci-lint.override { buildGoModule = buildGo121Module; };
+
+          go-mod-upgrade = buildGo121Module rec {
+            name = "go-mod-upgrade";
+            version = "0.9.1";
+            src = fetchFromGitHub {
+              owner = "oligot";
+              repo = "go-mod-upgrade";
+              rev = "v${version}";
+              hash = "sha256-+C0IMb7MU1fq/P0/tTUNmzznZ1q5M69491pO5yBZlVs=";
+            };
+            doCheck = false;
+            subPackages = [ "." ];
+            vendorHash = "sha256-8rbRxtOiKmnf68kjsUCXaZf+MHI1n5aXa91Aneq9SKo=";
+            ldflags = [ "-s" "-w" "-X" "main.version=v${version}" ];
+          };
+        };
+
+        formatter = alejandra;
+      }
+    );
+}