gcan: init at v1.1.1 (#531350)

pkgs/by-name/gc/gcan/package.nix

@@ -0,0 +1,34 @@
+{
+  lib,
+  fetchFromGitHub,
+  rustPlatform,
+  versionCheckHook,
+}:
+
+rustPlatform.buildRustPackage (finalAttrs: {
+  pname = "gcan";
+  version = "1.1.1";
+
+  __structuredAttrs = true;
+
+  src = fetchFromGitHub {
+    owner = "applicative-systems";
+    repo = "gcan";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-BZfdc3ddAa9CPC3GOH9G3QJbECbSRY7ymzIMtYl076M=";
+  };
+
+  cargoHash = "sha256-5oE69FYTAV6JiTAN4A79+ndI0vHrbAi1JeEJcD+eY2c=";
+
+  doInstallCheck = true;
+  nativeInstallCheckInputs = [ versionCheckHook ];
+
+  meta = {
+    description = "Analyze, filter, and prune Nix GC roots";
+    homepage = "https://github.com/applicative-systems/gcan";
+    license = lib.licenses.mit;
+    maintainers = [ lib.maintainers.tfc ];
+    mainProgram = "gcan";
+    platforms = lib.platforms.unix;
+  };
+})