From 4b5c998b512eba49eebfb1005d0f9340d29b332d Mon Sep 17 00:00:00 2001
From: yuuko <yuuko@partyvan.io>
Date: Sat, 3 Jan 2026 16:58:11 -0800
Subject: mkDepot, fetchDepotCache: appropriately invoke new depotdownloader

---
 srcds-pkgs/fetchdepotcache.nix | 29 +++++++++++++++++++++--------
 srcds-pkgs/mkdepot.nix         |  6 +++++-
 2 files changed, 26 insertions(+), 9 deletions(-)

diff --git a/srcds-pkgs/fetchdepotcache.nix b/srcds-pkgs/fetchdepotcache.nix
index 6546126..ab3b486 100644
--- a/srcds-pkgs/fetchdepotcache.nix
+++ b/srcds-pkgs/fetchdepotcache.nix
@@ -11,17 +11,30 @@ runCommand "depotcache-${manifest}" {
   outputHashMode = "recursive";
   outputHashAlgo = null;
   outputHash = hash;
-  passthru = { inherit app depot manifest; };
+  passthru = {
+    inherit app depot manifest;
+    depotdownloader = { inherit (depotdownloader) version; };
+  };
 } ''
   mkdir -p $out
   export HOME=$out
   cd $out
-  DepotDownloader \
-    -app ${app'} \
-    -depot ${depot'} \
-    -manifest ${manifest} \
-    -filelist /dev/null \
-    -dir .
-  
+
+  ${if lib.versionAtLeast depotdownloader.version "3.1.0" then ''
+    DepotDownloader \
+      -app ${app'} \
+      -depot ${depot'} \
+      -manifest ${manifest} \
+      -manifest-only \
+      -dir .
+  '' else ''
+    DepotDownloader \
+      -app ${app'} \
+      -depot ${depot'} \
+      -manifest ${manifest} \
+      -filelist /dev/null \
+      -dir .
+  ''}
+
   rm -rf .local
 ''
diff --git a/srcds-pkgs/mkdepot.nix b/srcds-pkgs/mkdepot.nix
index 26d364b..f9b0f54 100644
--- a/srcds-pkgs/mkdepot.nix
+++ b/srcds-pkgs/mkdepot.nix
@@ -13,7 +13,11 @@ let
       ln -s '${drv}' $out/'${FileName}'
     '';
   emitManifest = cache: with cache.passthru; let
-    json = "${cache}/.DepotDownloader/${toString depot}_${manifest}.json";
+    sillyPathComponent = if lib.versionAtLeast depotdownloader.version "3.1.0" then
+      "manifest_"
+    else
+      ".DepotDownloader/";
+    json = "${cache}/${sillyPathComponent}${toString depot}_${manifest}.json";
     mkStep = file: emitStep (file // { inherit cache; });
   in concatMapStrings mkStep (importJSON json).Files;
 in runCommand name {} ''
-- 
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