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btrfs: build tags

Default to the same build behavior, but allow a go build tag to disable
building of the btrfs graphdriver

go build -tags no_btrfs' ...
$ go build
$ objdump -S docker | grep btrfs | wc -l
194
$ go build -tags no_btrfs
$ objdump -S docker | grep btrfs | wc -l
1
# that is a comment ;-)

Docker-DCO-1.1-Signed-off-by: Vincent Batts <vbatts@redhat.com> (github: vbatts)

Vincent Batts authored on 2014/03/14 04:10:35
Showing 2 changed files

runtime/runtime.go

History View file @ 85a62d9

@@ -16,7 +16,6 @@ import (
                      	"github.com/dotcloud/docker/runtime/execdriver/execdrivers"
                      	"github.com/dotcloud/docker/runtime/execdriver/lxc"
                      	"github.com/dotcloud/docker/runtime/graphdriver"
                     -	_ "github.com/dotcloud/docker/runtime/graphdriver/btrfs"
                      	_ "github.com/dotcloud/docker/runtime/graphdriver/vfs"
                      	_ "github.com/dotcloud/docker/runtime/networkdriver/lxc"
                      	"github.com/dotcloud/docker/runtime/networkdriver/portallocator"

runtime/runtime_btfs.go

History View file @ 85a62d9

                     new file mode 100644
@@ -0,0 +1,7 @@
                     +// +build !no_btrfs
+                    +
                     +package runtime
+                    +
                     +import (
                     +	_ "github.com/dotcloud/docker/runtime/graphdriver/btrfs"
                     +)