From 4add420a480265b7185896ca0aadb394d1da383c Mon Sep 17 00:00:00 2001
From: Shea Levy <shea@shealevy.com>
Date: Wed, 28 Sep 2011 21:46:07 +0000
Subject: [PATCH] aufs3 kernelPackage

svn path=/nixpkgs/trunk/; revision=29534
---
 pkgs/os-specific/linux/aufs3/default.nix  | 41 +++++++++++++++++++++++
 pkgs/os-specific/linux/kernel/generic.nix |  2 +-
 pkgs/os-specific/linux/kernel/patches.nix | 19 ++++++-----
 pkgs/top-level/all-packages.nix           |  4 +++
 4 files changed, 56 insertions(+), 10 deletions(-)
 create mode 100644 pkgs/os-specific/linux/aufs3/default.nix

diff --git a/pkgs/os-specific/linux/aufs3/default.nix b/pkgs/os-specific/linux/aufs3/default.nix
new file mode 100644
index 00000000000..a47dd9cb445
--- /dev/null
+++ b/pkgs/os-specific/linux/aufs3/default.nix
@@ -0,0 +1,41 @@
+{ stdenv, kernel, perl }:
+
+let
+
+  aufsPredicate = x:
+    if x ? features then
+      (if x.features ? aufs3 then x.features.aufs3 else false)
+    else false;
+  featureAbort = abort "This kernel does not have aufs 3 support";
+  patch = stdenv.lib.findFirst aufsPredicate featureAbort kernel.kernelPatches;
+
+in
+
+stdenv.mkDerivation {
+  name = "aufs3-${patch.version}";
+
+  src = patch.patch.src;
+
+  buildInputs = [ perl ];
+
+  makeFlags = "KDIR=${kernel}/lib/modules/${kernel.modDirVersion}/build";
+
+  installPhase =
+    ''
+      ensureDir $out/lib/modules/${kernel.modDirVersion}/misc
+      cp -v aufs.ko $out/lib/modules/${kernel.modDirVersion}/misc
+
+      # Install the headers because aufs3-util requires them.
+      ensureDir $out/include/linux
+      cp -v usr/include/linux/aufs_type.h $out/include/linux
+    '';
+
+  meta = {
+    description = "Another Unionfs implementation for Linux (third generation)";
+    homepage = http://aufs.sourceforge.net/;
+    maintainers = [ stdenv.lib.maintainers.eelco
+                    stdenv.lib.maintainers.raskin
+                    stdenv.lib.maintainers.shlevy ];
+    platforms = stdenv.lib.platforms.linux;
+  };
+}
diff --git a/pkgs/os-specific/linux/kernel/generic.nix b/pkgs/os-specific/linux/kernel/generic.nix
index a86aef1af8e..af62125eb75 100644
--- a/pkgs/os-specific/linux/kernel/generic.nix
+++ b/pkgs/os-specific/linux/kernel/generic.nix
@@ -69,7 +69,7 @@ stdenv.mkDerivation {
   enableParallelBuilding = true;
 
   passthru = {
-    inherit version modDirVersion;
+    inherit version modDirVersion kernelPatches;
     # Combine the `features' attribute sets of all the kernel patches.
     features = lib.fold (x: y: (if x ? features then x.features else {}) // y) features kernelPatches;
   };
diff --git a/pkgs/os-specific/linux/kernel/patches.nix b/pkgs/os-specific/linux/kernel/patches.nix
index 3f66fcb8850..79e02753f32 100644
--- a/pkgs/os-specific/linux/kernel/patches.nix
+++ b/pkgs/os-specific/linux/kernel/patches.nix
@@ -290,16 +290,17 @@ rec {
       features.aufs2_1 = true;
     };
 
-  aufs3_0 =
-    { name = "aufs3.0";
-      patch = makeAufs3StandalonePatch {
-        version = "3.0";
-        rev = "1067b9d8d64d23c70d905c9cd3c90a669e39c4d4";
-        sha256 = "b508cab5987a623f057ae5fdc006c909a6bae6151af6e12fe672bf97b1a7549d";
-      };
-      features.aufsBase = true;
-      features.aufs3 = true;
+  aufs3_0 = rec {
+    name = "aufs3.0";
+    version = "3.0";
+    patch = makeAufs3StandalonePatch {
+      inherit version;
+      rev = "1067b9d8d64d23c70d905c9cd3c90a669e39c4d4";
+      sha256 = "b508cab5987a623f057ae5fdc006c909a6bae6151af6e12fe672bf97b1a7549d";
     };
+    features.aufsBase = true;
+    features.aufs3 = true;
+  };
 
   # Increase the timeout on CIFS requests from 15 to 120 seconds to
   # make CIFS more resilient to high load on the CIFS server.
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 1c93b070c08..ece8cfe76b8 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5588,6 +5588,10 @@ let
       callPackage ../os-specific/linux/aufs2.1 { }
       else null;
 
+    aufs3 = if kernel.features ? aufs3 then
+      callPackage ../os-specific/linux/aufs3 { }
+      else null;
+
     aufs2_1_util = if kernel.features ? aufs2_1 then
       callPackage ../os-specific/linux/aufs2.1-util { }
       else null;