Build and test using Docker

Signed-off-by: Ben Firshman <ben@firshman.co.uk>

.dockerignore

@@ -0,0 +1 @@
+machine*

.gitignore

@@ -1 +1 @@
-machine
+machine*

.travis.yml

@@ -4,4 +4,4 @@ go:
 script:
 - script/validate-dco
 - script/validate-gofmt
-- script/test
+- go test -v ./...

Dockerfile

@@ -1,2 +1,5 @@
-FROM golang:onbuild
-ENTRYPOINT ["machine"]
+FROM golang:1.3-cross
+RUN go get github.com/mitchellh/gox
+ENV GOPATH /go/src/github.com/docker/machine/Godeps/_workspace:/go
+WORKDIR /go/src/github.com/docker/machine
+ADD . /go/src/github.com/docker/machine

README.md

@@ -108,7 +108,8 @@ To build, run:
     $ go get github.com/docker/machine
     $ cd $GOPATH/src/github.com/docker/machine
     $ script/build
-    $ ./machine
+
+That will create binaries for various platforms in the current directory.
 
 If you have any questions we're in #docker-machine on Freenode.
 

script/build

@@ -1,2 +1,4 @@
 #!/bin/sh
-GOPATH=`pwd`/Godeps/_workspace:$GOPATH go build
+set -e
+docker build -t docker-machine .
+exec docker run --rm -v `pwd`:/go/src/github.com/docker/machine docker-machine gox -os="darwin linux" -parallel=5

script/test

@@ -1,2 +1,4 @@
 #!/bin/sh
-GOPATH=`pwd`/Godep/_workspace:$GOPATH go test -v ./...
+set -e
+docker build -t docker-machine .
+exec docker run --rm docker-machine go test -v ./...