From e578231cb88890520d241f15df9f825d9bb958ab Mon Sep 17 00:00:00 2001
From: K900 <me@0upti.me>
Date: Tue, 16 May 2023 21:30:54 +0300
Subject: [PATCH 1/3] steam-fhsenv: allow building without Steam

I promise this will make sense.
---
 pkgs/games/steam/fhsenv.nix | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/pkgs/games/steam/fhsenv.nix b/pkgs/games/steam/fhsenv.nix
index a64aaacb0e7e..7fe40b68ecee 100644
--- a/pkgs/games/steam/fhsenv.nix
+++ b/pkgs/games/steam/fhsenv.nix
@@ -62,7 +62,7 @@ in buildFHSEnv rec {
   name = "steam";
 
   targetPkgs = pkgs: with pkgs; [
-    steamPackages.steam
+    steam
     # License agreement
     gnome.zenity
   ] ++ commonTargetPkgs pkgs;
@@ -207,10 +207,10 @@ in buildFHSEnv rec {
     libpsl
     nghttp2.lib
     rtmpdump
-  ] ++ steamPackages.steam-runtime-wrapped.overridePkgs
+  ] ++ steam-runtime-wrapped.overridePkgs
   ++ extraLibraries pkgs;
 
-  extraInstallCommands = ''
+  extraInstallCommands = lib.optionalString (steam != null) ''
     mkdir -p $out/share/applications
     ln -s ${steam}/share/icons $out/share
     ln -s ${steam}/share/pixmaps $out/share
@@ -262,9 +262,15 @@ in buildFHSEnv rec {
     exec steam ${extraArgs} "$@"
   '';
 
-  meta = steam.meta // lib.optionalAttrs (!withGameSpecificLibraries) {
-    description = steam.meta.description + " (without game specific libraries)";
-  };
+  meta =
+    if steam != null
+    then
+      steam.meta // lib.optionalAttrs (!withGameSpecificLibraries) {
+        description = steam.meta.description + " (without game specific libraries)";
+      }
+    else {
+      description = "Steam dependencies (dummy package, do not use)";
+    };
 
   # allows for some gui applications to share IPC
   # this fixes certain issues where they don't render correctly
@@ -298,7 +304,7 @@ in buildFHSEnv rec {
       exec -- "$run" "$@"
     '';
 
-    meta = steam.meta // {
+    meta = (steam.meta or {}) // {
       description = "Run commands in the same FHS environment that is used for Steam";
       name = "steam-run";
     };

From 48db1ea01da9cc602bc10e982dd9a659188f6633 Mon Sep 17 00:00:00 2001
From: K900 <me@0upti.me>
Date: Tue, 16 May 2023 21:31:19 +0300
Subject: [PATCH 2/3] steamPackages: expose steam-fhsenv-without-steam

This is not unfree and thus can be built by Hydra.
---
 pkgs/games/steam/default.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/games/steam/default.nix b/pkgs/games/steam/default.nix
index a304f18f5bf6..370f22268a9a 100644
--- a/pkgs/games/steam/default.nix
+++ b/pkgs/games/steam/default.nix
@@ -25,6 +25,11 @@ let
       inherit buildFHSEnv;
     };
     steam-fhsenv-small = steam-fhsenv.override { withGameSpecificLibraries = false; };
+
+    # This has to exist so Hydra tries to build all of Steam's dependencies.
+    # FIXME: Maybe we should expose it as something more generic?
+    steam-fhsenv-without-steam = steam-fhsenv.override { steam = null; };
+
     steamcmd = callPackage ./steamcmd.nix { };
   };
   keep = self: { };

From 1ec761c9d99018e7ec9b200789483c3fb18c0526 Mon Sep 17 00:00:00 2001
From: K900 <me@0upti.me>
Date: Tue, 16 May 2023 21:31:51 +0300
Subject: [PATCH 3/3] all-packages.nix: recurse into Steam

Now that we can actually build something useful out of it on Hydra
---
 pkgs/top-level/all-packages.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index dea38435f0a3..f67d5a794ea3 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -36893,7 +36893,7 @@ with pkgs;
 
   stockfish = callPackage ../games/stockfish { };
 
-  steamPackages = dontRecurseIntoAttrs (callPackage ../games/steam { });
+  steamPackages = recurseIntoAttrs (callPackage ../games/steam { });
 
   steam = steamPackages.steam-fhsenv;
   steam-small = steamPackages.steam-fhsenv-small;