From 0b85d71507eeccc59340b5af74bb5daea723515d Mon Sep 17 00:00:00 2001
From: Petr Portnov <mrjarviscraft+nix@gmail.com>
Date: Sun, 29 Mar 2026 15:06:32 +0300
Subject: [PATCH] backdown: add nix-update-script

---
 pkgs/by-name/ba/backdown/package.nix | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/pkgs/by-name/ba/backdown/package.nix b/pkgs/by-name/ba/backdown/package.nix
index 4c6bb26cff74..ccc213afdfd5 100644
--- a/pkgs/by-name/ba/backdown/package.nix
+++ b/pkgs/by-name/ba/backdown/package.nix
@@ -2,6 +2,8 @@
   lib,
   rustPlatform,
   fetchFromGitHub,
+  versionCheckHook,
+  nix-update-script,
 }:
 
 rustPlatform.buildRustPackage (finalAttrs: {
@@ -17,10 +19,15 @@ rustPlatform.buildRustPackage (finalAttrs: {
 
   cargoHash = "sha256-qVE4MOFr0YO+9rAbfnz92h0KocaLu+v2u5ompwY/o6k=";
 
+  doInstallCheck = true;
+  nativeInstallCheckInputs = [ versionCheckHook ];
+
+  passthru.updateScript = nix-update-script { };
+
   meta = {
     description = "File deduplicator";
     homepage = "https://github.com/Canop/backdown";
-    changelog = "https://github.com/Canop/backdown/blob/${finalAttrs.src.rev}/CHANGELOG.md";
+    changelog = "https://github.com/Canop/backdown/blob/v${finalAttrs.version}/CHANGELOG.md";
     license = lib.licenses.mit;
     maintainers = [ lib.maintainers.progrm_jarvis ];
     mainProgram = "backdown";