From d88c9eb569ae524f5e9ee90a1fb0fd12aaf6f670 Mon Sep 17 00:00:00 2001
From: Shawn8901 <shawn8901@googlemail.com>
Date: Sat, 15 Nov 2025 18:53:26 +0100
Subject: [PATCH 1/2] epson-escpr2: add update script

---
 pkgs/by-name/ep/epson-escpr2/package.nix |  3 +++
 pkgs/by-name/ep/epson-escpr2/update.sh   | 21 +++++++++++++++++++++
 2 files changed, 24 insertions(+)
 create mode 100755 pkgs/by-name/ep/epson-escpr2/update.sh

diff --git a/pkgs/by-name/ep/epson-escpr2/package.nix b/pkgs/by-name/ep/epson-escpr2/package.nix
index bbfe2d0e2508..984c6633b04f 100644
--- a/pkgs/by-name/ep/epson-escpr2/package.nix
+++ b/pkgs/by-name/ep/epson-escpr2/package.nix
@@ -14,6 +14,7 @@ stdenv.mkDerivation {
     # To find the most recent version go to
     # https://support.epson.net/linux/Printer/LSB_distribution_pages/en/escpr2.php
     # and retrieve the download link for source package for arm CPU for the tar.gz (the x86 link targets to rpm source files)
+
     url = "https://download3.ebz.epson.net/dsc/f/03/00/17/28/09/4e8dc40219d4b52e414b608de92552af4fd46eca/epson-inkjet-printer-escpr2-1.2.35-1.tar.gz";
     hash = "sha256-aYEuEION/C32/SnngreX/nqK/6Yzkuxf0k0HpferTYM=";
   };
@@ -37,6 +38,8 @@ stdenv.mkDerivation {
     "--with-cupsppddir=${placeholder "out"}/share/cups/model"
   ];
 
+  passthru.updateScript = ./update.sh;
+
   meta = {
     homepage = "http://download.ebz.epson.net/dsc/search/01/search/";
     description = "ESC/P-R 2 Driver (generic driver)";
diff --git a/pkgs/by-name/ep/epson-escpr2/update.sh b/pkgs/by-name/ep/epson-escpr2/update.sh
new file mode 100755
index 000000000000..b2082decd74a
--- /dev/null
+++ b/pkgs/by-name/ep/epson-escpr2/update.sh
@@ -0,0 +1,21 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p bash curl jq common-updater-scripts
+set -eou pipefail
+
+result=$(curl -sSL 'https://download-center.epson.com/api/v1/modules/?device_id=XP-970%20Series&os=DEBARM32&region=US&language=en' | jq -r '.items[] | select(.module_name == "Epson Inkjet Printer Driver 2 (ESC/P-R) for Linux" and .cti_category == "Sources")')
+
+latestVersion=$(jq '.version' <<< "$result" | tr -d '"')
+currentVersion=$(nix-instantiate --eval -E "with import ./. {}; (lib.getVersion epson-escpr2)" | tr -d '"')
+
+echo "latest  version: $latestVersion"
+echo "current version: $currentVersion"
+
+if [[ "$latestVersion" == "$currentVersion" ]]; then
+    echo "package is up-to-date"
+    exit 0
+fi
+
+url=$(jq '.url' <<< "$result" | tr -d '"')
+
+hash=$(nix --extra-experimental-features nix-command hash convert --hash-algo sha256 --to sri $(nix-prefetch-url $url))
+update-source-version epson-escpr2 $latestVersion $hash $url --ignore-same-version

From 1919f1b66335fb5846b4d2175f014ab49c23c2bd Mon Sep 17 00:00:00 2001
From: Shawn8901 <shawn8901@googlemail.com>
Date: Sat, 15 Nov 2025 18:01:38 +0000
Subject: [PATCH 2/2] epson-escpr2: 1.2.35 -> 1.2.36

---
 pkgs/by-name/ep/epson-escpr2/package.nix | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/pkgs/by-name/ep/epson-escpr2/package.nix b/pkgs/by-name/ep/epson-escpr2/package.nix
index 984c6633b04f..8523d3aff4d1 100644
--- a/pkgs/by-name/ep/epson-escpr2/package.nix
+++ b/pkgs/by-name/ep/epson-escpr2/package.nix
@@ -8,15 +8,15 @@
 
 stdenv.mkDerivation {
   pname = "epson-inkjet-printer-escpr2";
-  version = "1.2.35";
+  version = "1.2.36";
 
   src = fetchurl {
     # To find the most recent version go to
     # https://support.epson.net/linux/Printer/LSB_distribution_pages/en/escpr2.php
     # and retrieve the download link for source package for arm CPU for the tar.gz (the x86 link targets to rpm source files)
 
-    url = "https://download3.ebz.epson.net/dsc/f/03/00/17/28/09/4e8dc40219d4b52e414b608de92552af4fd46eca/epson-inkjet-printer-escpr2-1.2.35-1.tar.gz";
-    hash = "sha256-aYEuEION/C32/SnngreX/nqK/6Yzkuxf0k0HpferTYM=";
+    url = "https://download-center.epson.com/f/module/bb48b7e6-662f-4152-a86f-c1a78fc74b1f/epson-inkjet-printer-escpr2-1.2.36-1.tar.gz";
+    hash = "sha256-0R4dFhT1XhjXMOeRxCbTIT1K83bkwiAhpu/W10DSlxM=";
   };
 
   buildInputs = [ cups ];