From 2d0a7c4eeecd22f26eb37f6077a0397c32250375 Mon Sep 17 00:00:00 2001
From: Nikolay Amiantov <ab@fmap.me>
Date: Sat, 27 May 2017 20:44:00 +0300
Subject: [PATCH] aliases: don't distribute on Hydra

---
 lib/meta.nix               |  5 +++++
 pkgs/top-level/aliases.nix | 17 ++++++++++++-----
 2 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/lib/meta.nix b/lib/meta.nix
index ae652e579c39..8f77bbe01484 100644
--- a/lib/meta.nix
+++ b/lib/meta.nix
@@ -17,6 +17,11 @@ rec {
     drv // { meta = (drv.meta or {}) // newAttrs; };
 
 
+  /* Disable Hydra builds of given derivation.
+  */
+  dontDistribute = drv: addMetaAttrs { hydraPlatforms = []; } drv;
+
+
   /* Change the symbolic name of a package for presentation purposes
      (i.e., so that nix-env users can tell them apart).
   */
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 7fb271682d0f..a14732fb8599 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -5,18 +5,25 @@ with self;
 let
   # Removing recurseForDerivation prevents derivations of aliased attribute
   # set to appear while listing all the packages available.
-  removeRecurseForDerivations = _n: alias: with lib;
+  removeRecurseForDerivations = alias: with lib;
     if alias.recurseForDerivations or false then
       removeAttrs alias ["recurseForDerivations"]
     else alias;
 
-  doNotDisplayTwice = aliases:
-    lib.mapAttrs removeRecurseForDerivations aliases;
+  # Disabling distribution prevents top-level aliases for non-recursed package
+  # sets from building on Hydra.
+  removeDistribute = alias: with lib;
+    if isDerivation alias then
+      dontDistribute alias
+    else alias;
+
+  mapAliases = aliases:
+    lib.mapAttrs (n: alias: removeDistribute (removeRecurseForDerivations alias)) aliases;
 in
 
   ### Deprecated aliases - for backward compatibility
 
-doNotDisplayTwice rec {
+mapAliases (rec {
   accounts-qt = libsForQt5.accounts-qt;  # added 2015-12-19
   adobeReader = adobe-reader;
   aircrackng = aircrack-ng; # added 2016-01-14
@@ -156,4 +163,4 @@ doNotDisplayTwice rec {
   ocaml_4_02   = ocamlPackages_4_02.ocaml;
   ocaml_4_03   = ocamlPackages_4_03.ocaml;
   ocaml        = ocamlPackages.ocaml;
-})
+}))