Autoupdate swayimg

packages/swayimg/default.nix

@@ -2,15 +2,18 @@
 , makeDesktopItem, wayland, wayland-protocols, json_c, libxkbcommon, fontconfig
 , giflib, libjpeg, libjxl, libpng, librsvg, libwebp, libheif, libtiff, libexif
 , bash-completion, ... }:
-
+let
-stdenv.mkDerivation rec {
+  vals = builtins.fromJSON (builtins.readFile ../../sources/swayimg.json);
+  version = vals.version;
+  url = vals.url;
+  hash = vals.hash;
+in stdenv.mkDerivation rec {
   pname = "swayimg";
-  version = "1.11";
+  inherit version;
 
   src = fetchurl {
-    url =
+    inherit url;
-      "https://github.com/artemsen/swayimg/archive/refs/tags/v${version}.tar.gz";
+    inherit hash;
-    hash = "sha256-t4U0F8rzySgZUQdkTfMbqAqQb8PsyhgNsoQau/rCdzY=";
     name = "${pname}-${version}.tar.gz";
   };
 

sources/swayimg.json

@@ -0,0 +1,5 @@
+{
+  "version": "1.11",
+  "url": "https://github.com/artemsen/swayimg/archive/refs/tags/v1.11.tar.gz",
+  "hash": "sha256-t4U0F8rzySgZUQdkTfMbqAqQb8PsyhgNsoQau/rCdzY="
+}

sources/update-sources.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+set -exou pipefail
+
+DIRECTORY=$(realpath "$(dirname "$0")")
+
+# Update swayimg
+SWAYIMG_VERSION=$(curl https://api.github.com/repos/artemsen/swayimg/tags | jq -r ".[0].name" | tr -d "v")
+SWAYIMG_URL="https://github.com/artemsen/swayimg/archive/refs/tags/v$SWAYIMG_VERSION.tar.gz"
+SWAYIMG_HASH=$(nix-prefetch fetchurl --url "$SWAYIMG_URL" -s)
+jq --null-input \
+    --arg version "$SWAYIMG_VERSION" \
+    --arg url "$SWAYIMG_URL" \
+    --arg hash "$SWAYIMG_HASH" \
+    '{"version": $version, "url": $url, "hash": $hash}' \
+    > $DIRECTORY/swayimg.json