update scripts for depots

.gitignore

@@ -1,3 +1,4 @@
 result
 .direnv
 tmp
+depots

README.md

@@ -57,8 +57,8 @@ sourcemod doesn't support all of them.
 
 #### i686-linux
 
-`episode1`, `orangebox`, `css`, `hl2dm`, `dods`, `sdk2013`, `tf2`, `l4d`, `l4d2`,
+`episode1`, `orangebox`, `css`, `hl2dm`, `dods`, `sdk2013`, `tf2`, `l4d`,
-`nucleardawn`, `csgo`, `insurgency`, `bms` and `doi`
+`l4d2`, `nucleardawn`, `csgo`, `insurgency`, `bms` and `doi`
 
 #### x86_64-linux
 

flake.nix

@@ -43,7 +43,19 @@
         metamods = pkgs.lib.mapAttrs (name: sdk: pkgs.metamod-source-builder {${name} = sdk;}) pkgs.hl2sdk;
       };
 
-      packages = inheritPkgs ["ambuild" "hl2sdk" "sourcepawn" "metamod-source" "sourcemod" "sourcemod-includes" "sourcemod-include-curl" "sourcemod-include-library" "sourcemod-include-steamworks" "srcds-tf2"];
+      packages = inheritPkgs [
+        "ambuild"
+        "hl2sdk"
+        "sourcepawn"
+        "metamod-source"
+        "sourcemod"
+        "sourcemod-includes"
+        "sourcemod-include-curl"
+        "sourcemod-include-library"
+        "sourcemod-include-steamworks"
+        "srcds-tf2"
+        "steam-depots"
+      ];
 
       checks = {
         buildTestScript = {pkgs, ...}:
@@ -57,7 +69,7 @@
       };
 
       devShells.default = {pkgs, ...}: {
-        packages = with pkgs; [nix-update];
+        packages = with pkgs; [nix-update depotdownloader];
       };
     };
 }

nix/overlay.nix

@@ -1,5 +1,3 @@
 final: prev:
-{
+(import ./sourcemod/overlay.nix) final prev
-  srcds-tf2 = final.callPackage ./srcds {};
+// (import ./srcds/overlay.nix) final prev
-}
-// (import ./sourcemod/overlay.nix) final prev

nix/srcds/depot.nix

@@ -0,0 +1,21 @@
+{
+  lib,
+  fetchSteam,
+  appId,
+  depotId,
+  hash ? null,
+}: let
+  inherit (lib) toString importJSON findFirst;
+  depotInputs = importJSON ./depots.json;
+  depotInput = findFirst (depot: depot.app_id == appId && depot.depot_id == depotId) {} depotInputs;
+in
+  fetchSteam {
+    name = "steam-depot-${toString appId}-${toString depotId}";
+    inherit appId depotId;
+    manifestId = depotInput.manifest;
+    hash =
+      if (hash == null)
+      then depotInput.hash
+      else hash;
+    fileList = depotInput.file_list or [];
+  }

nix/srcds/depots.json

@@ -3,7 +3,7 @@
     "app_id": 232250,
     "depot_id": 232256,
     "manifest": 698669566371320345,
-    "date": "2026-07-07T17:15:40Z",
+    "date": "2026-07-03T19:53:32+02:00",
     "hash": "sha256-PNG0Xz08ozVjqYN2XZHr1/4TmrITIZA0kLax3LGMqZY="
   },
   {

nix/srcds/overlay.nix

@@ -0,0 +1,14 @@
+final: prev: let
+  inherit (prev.lib) toString importJSON listToAttrs map;
+  depotInputs = importJSON ./depots.json;
+in {
+  srcds-tf2 = final.callPackage ./default.nix {};
+  steam-depots = listToAttrs (map (depot: {
+      name = "steam-depot-${toString depot.app_id}-${toString depot.depot_id}";
+      value = final.callPackage ./depot.nix {
+        appId = depot.app_id;
+        depotId = depot.depot_id;
+      };
+    })
+    depotInputs);
+}

update-all.nu

@@ -1,6 +1,8 @@
 #! /usr/bin/env nu
 
 def main [] {
+    update_all_depots
+
     nix-update --flake --use-update-script ambuild
     nix build .#ambuild
 
@@ -17,6 +19,8 @@ def main [] {
     nix-update --flake --use-update-script sourcemod-include-library
     nix-update --flake --use-update-script sourcemod-include-steamworks
     nix-update --flake --use-update-script sourcemod-includes
+
+    nix fmt
 }
 
 def update_sdk [sdk: string] {
@@ -36,3 +40,56 @@ def get_metamod_version [] {
     let build = $html | query web --as-table [Build] | get Build | first
     $"($branch).0.($build)"
 }
+
+def get_manifest [app: int, depot: int] {
+    let info = DepotDownloader -app $app -depot $depot -manifest-only | parse -r 'Manifest (?P<manifest>[0-9]+) \((?P<date>[^)]+)\)' | first
+    # builting rm doesn't work for some reason?
+    env rm -r ./depots
+    let manifest = $info | get manifest | into int
+    let date = $info | get date | into datetime | format date '%+'
+
+    {
+      app_id: $app,
+      depot_id: $depot,
+      manifest: $manifest,
+      date: $date,
+    }
+}
+
+def update_all_depots [] {
+    let $depots = open nix/srcds/depots.json
+    let updated = $depots | each {|manifest| update_manifest $manifest}
+
+    # save, so the nix build for determining the hashes sees the new manifest id
+    $updated | save -f nix/srcds/depots.json
+
+    let with_hashes = $updated | each {|manifest| update_manifest_hash $manifest}
+    $with_hashes | save -f nix/srcds/depots.json
+}
+
+def update_manifest [manifest: record] {
+    let new = get_manifest $manifest.app_id $manifest.depot_id
+
+    if ($new.manifest != $manifest.manifest) {
+        $manifest | merge $new | merge {hash: ""}
+    } else {
+        $manifest
+    }
+}
+
+def update_manifest_hash [manifest: record] {
+    if $manifest.hash == "" {
+        let new = get_manifest_hash $manifest
+        $manifest | merge {hash: $new}
+    } else {
+        $manifest
+    }
+}
+
+def get_manifest_hash [manifest: record] {
+    nix build $".#steam-depots.steam-depot-($manifest.app_id)-($manifest.depot_id)" | complete | get 'stderr' | extract_hash
+}
+
+def extract_hash [] {
+    parse -r "got: (?P<hash>sha256-[A-Za-z0-9+\/=]+)" | first | get 'hash'
+}