Fix build for Windows

appveyor.yml

@@ -19,12 +19,14 @@ install:
 build_script:
   - golint ./...
   - go test ./...
-  - script/build
+  - ps: script/build-for-windows.ps1
 
 test: off
 
 deploy:
   provider: GitHub
-  GitHub: "build/whalebrew-Windows-x86_64.exe"
+  auth_token:
+    secure: ""
+  artifact: "build/whalebrew-Windows-x86_64.exe"
   on:
     appveyor_repo_tag: true

client/client.go

@@ -1,21 +1,17 @@
 package client
 
 import (
-	"github.com/docker/docker/api/types"
+	"context"
+
 	"github.com/docker/docker/client"
 )
 
-// DefaultVersion is the Engine API version used by Whalebrew
-const DefaultVersion string = "1.20"
-
 // NewClient returns a Docker client configured for Whalebrew
 func NewClient() (*client.Client, error) {
 	cli, err := client.NewEnvClient()
 	if err != nil {
 		return cli, err
 	}
-	cli.NegotiateAPIVersionPing(types.Ping{
-		APIVersion: DefaultVersion,
-	})
+	cli.NegotiateAPIVersion(context.Background())
 	return cli, nil
 }

script/build

@@ -4,8 +4,8 @@ set -e
 
 mkdir -p build
 cd build
-gox -osarch="linux/amd64" -osarch="darwin/amd64" --osarch="windows/amd64" ../
+
+gox -osarch="linux/amd64" -osarch="darwin/amd64" ../
 
 mv whalebrew_linux_amd64 whalebrew-Linux-x86_64
 mv whalebrew_darwin_amd64 whalebrew-Darwin-x86_64
-mv whalebrew_windows_amd64.exe whalebrew-Windows-x86_64.exe

script/build-for-windows.ps1

@@ -0,0 +1,6 @@
+New-Item -ItemType Directory -Path ./build
+Set-Location ./build
+
+gox -osarch="windows/amd64" ../
+
+Move-Item whalebrew_windows_amd64.exe whalebrew-Windows-x86_64.exe