From 1bdf3d55ce4a1fc8be818f3b8d7385916e1857e2 Mon Sep 17 00:00:00 2001
From: Aidan Gauland <aidalgol@fastmail.net>
Date: Sat, 21 Sep 2024 18:42:46 +1200
Subject: [PATCH] steamPackages.steam: add update script

---
 pkgs/games/steam/steam.nix           |  2 ++
 pkgs/games/steam/update-bootstrap.py | 31 ++++++++++++++++++++++++++++
 2 files changed, 33 insertions(+)
 create mode 100755 pkgs/games/steam/update-bootstrap.py

diff --git a/pkgs/games/steam/steam.nix b/pkgs/games/steam/steam.nix
index 262d682b8af8..b769c6d956cf 100644
--- a/pkgs/games/steam/steam.nix
+++ b/pkgs/games/steam/steam.nix
@@ -38,6 +38,8 @@ stdenv.mkDerivation (finalAttrs: {
     sed -e 's,/usr/bin/steam,steam,g' steam.desktop > $out/share/applications/steam.desktop
   '';
 
+  passthru.updateScript = ./update-bootstrap.py;
+
   meta = with lib; {
     description = "Digital distribution platform";
     longDescription = ''
diff --git a/pkgs/games/steam/update-bootstrap.py b/pkgs/games/steam/update-bootstrap.py
new file mode 100755
index 000000000000..7720a08f4fce
--- /dev/null
+++ b/pkgs/games/steam/update-bootstrap.py
@@ -0,0 +1,31 @@
+#!/usr/bin/env nix-shell
+#!nix-shell --pure --keep NIX_PATH -i python3 -p git nix-update "python3.withPackages (ps: [ ps.beautifulsoup4 ps.requests ])"
+
+import sys
+import re
+import requests
+import subprocess
+from bs4 import BeautifulSoup
+
+VERSION_PATTERN = re.compile(r'^steam_(?P<ver>(\d+\.)+)tar.gz$')
+
+found_versions = []
+response = requests.get("https://repo.steampowered.com/steam/archive/stable/")
+soup = BeautifulSoup (response.text, "html.parser")
+for a in soup.find_all("a"):
+    href = a["href"]
+    if not href.endswith(".tar.gz"):
+        continue
+
+    match = VERSION_PATTERN.match(href)
+    if match is not None:
+        version = match.groupdict()["ver"][0:-1]
+        found_versions.append(version)
+
+if len(found_versions) == 0:
+    print("Failed to find available versions!", file=sys.stderr)
+    sys.exit(1)
+
+found_versions.sort()
+subprocess.run(["nix-update", "--version", found_versions[-1], "steamPackages.steam"])
+found_versions[0]