Makefile: add xcompile and package

Makefile

@@ -1,6 +1,8 @@
 TEST?=$(shell GO15VENDOREXPERIMENT=1 go list -f '{{.ImportPath}}/...' ./... | grep -v /vendor/ | sed "s|$(shell go list -f '{{.ImportPath}}' .)|.|g" | sed "s/\.\/\.\.\./\.\//g")
 VET?=$(shell echo ${TEST} | sed "s/\.\.\.//g" | sed "s/\.\/ //g")
 VETARGS?=-asmdecl -atomic -bool -buildtags -copylocks -methods -nilfunc -printf -rangeloops -shift -structtags -unsafeptr
+NAME=$(shell awk -F\" '/^const Name/ { print $$2 }' cmd/version.go)
+VERSION=$(shell awk -F\" '/^const Version/ { print $$2 }' cmd/version.go)
 
 all: test vaultfs
 
@@ -58,4 +60,25 @@ fmt:
 fmtcheck:
 	@sh -c "'$(CURDIR)/scripts/gofmtcheck.sh'"
 
+xcompile: test
+	@rm -rf build/
+	@mkdir -p build
+	gox \
+		-os="darwin" \
+		-os="dragonfly" \
+		-os="freebsd" \
+		-os="linux" \
+		-os="openbsd" \
+		-os="solaris" \
+		-os="windows" \
+		-output="build/{{.Dir}}_$(VERSION)_{{.OS}}_{{.Arch}}/$(NAME)"
+
+package: xcompile
+	$(eval FILES := $(shell ls build))
+	@mkdir -p build/tgz
+	for f in $(FILES); do \
+		(cd $(shell pwd)/build && tar -zcvf tgz/$$f.tar.gz $$f); \
+		echo $$f; \
+	done
+
 .PHONY: all test vet fmt fmtcheck lint

cmd/version.go

@@ -0,0 +1,40 @@
+// Copyright © 2016 Asteris
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+// Name describes the name of this tool
+const Name = "vaultfs"
+
+// Version describes the version of this tool
+const Version = "1.0.0"
+
+// versionCmd represents the version command
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "A brief description of your command",
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Printf("%s %s", Name, Version)
+	},
+}
+
+func init() {
+	RootCmd.AddCommand(versionCmd)
+}