From 44298c824234d3b6c3a05b2f3bd703b6e86f09ed Mon Sep 17 00:00:00 2001
From: Vladimir Pouzanov <farcaller@google.com>
Date: Sat, 22 Feb 2014 22:33:06 +0000
Subject: [PATCH] Fixes to make docker 0.8 work with btrfs driver on arm

---
 community/docker/PKGBUILD        | 17 ++++++++++++-----
 community/docker/btrfs-arm.patch | 24 ++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 5 deletions(-)
 create mode 100644 community/docker/btrfs-arm.patch

diff --git a/community/docker/PKGBUILD b/community/docker/PKGBUILD
index 3e6fa5909..51cbbf6ca 100644
--- a/community/docker/PKGBUILD
+++ b/community/docker/PKGBUILD
@@ -1,15 +1,15 @@
 # $Id$
 # Maintainer: Sébastien "Seblu" Luttringer
 
-# Add patch for ARM being a supported platform. 
+# Add patch for ARM being a supported platform.
 
 pkgname=docker
 _truever=0.8.0
 pkgver=${_truever%.*}
-pkgrel=1
+pkgrel=2
 epoch=1
 pkgdesc='Pack, ship and run any application as a lightweight container'
-arch=('x86_64')
+arch=('x86_64' 'armv7h')
 url='http://www.docker.io/'
 license=('Apache')
 depends=('bridge-utils' 'iproute2' 'device-mapper' 'lxc' 'sqlite' 'systemd')
@@ -19,9 +19,12 @@ optdepends=('btrfs-progs: btrfs backend support')
 options=('!strip')
 install=$pkgname.install
 source=("git+https://github.com/dotcloud/docker.git#tag=v$_truever"
-        'docker-arm.patch')
+        'docker-arm.patch'
+        'btrfs-arm.patch')
 md5sums=('SKIP'
-         '47cc1cdf900af66660bfa3402012ea71')
+         '47cc1cdf900af66660bfa3402012ea71'
+         '1ec4b4b42eb80f2692cee757324370b0')
+
 # magic harcoded path
 _magic=src/github.com/dotcloud
 
@@ -30,6 +33,10 @@ prepare() {
   ln -sfn "../../../docker" "$_magic/docker"
   cd "${srcdir}/docker"
   patch -p1 <"${srcdir}/docker-arm.patch"
+  patch -p1 <"${srcdir}/btrfs-arm.patch"
+  find . -name '*.go' | xargs sed --in-place= -e 's/\/\/ +build amd64/\/\/ +build amd64,arm/'
+  find . -name '*.go' | xargs sed --in-place= -e 's/\/\/ +build !linux !amd64/\/\/ +build !linux !amd64 !arm/'
+  find . -name '*.go' | xargs sed --in-place= -e 's/\/\/ +build linux,amd64/\/\/ +build linux,amd64 linux,arm/'
 }
 
 build() {
diff --git a/community/docker/btrfs-arm.patch b/community/docker/btrfs-arm.patch
new file mode 100644
index 000000000..5cfc0fbb4
--- /dev/null
+++ b/community/docker/btrfs-arm.patch
@@ -0,0 +1,24 @@
+From 23c1b0f9a91dcf3c7dc83dc0af44826cb8e96562 Mon Sep 17 00:00:00 2001
+From: Vladimir Pouzanov <farcaller@gmail.com>
+Date: Sat, 22 Feb 2014 22:25:10 +0000
+Subject: [PATCH] Golang sucks so much sometimes
+
+---
+ graphdriver/btrfs/btrfs.go | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/graphdriver/btrfs/btrfs.go b/graphdriver/btrfs/btrfs.go
+index 592e058..03faf85 100644
+--- a/graphdriver/btrfs/btrfs.go
++++ b/graphdriver/btrfs/btrfs.go
+@@ -30,7 +30,7 @@ func Init(home string) (graphdriver.Driver, error) {
+ 		return nil, err
+ 	}
+
+-	if buf.Type != 0x9123683E {
++	if buf.Type != -1859950530 {
+ 		return nil, fmt.Errorf("%s is not a btrfs filesystem", rootdir)
+ 	}
+
+--
+1.9.0