add support for mcs build to trim gopaths (#60)

also remove `version` sub-command as we don't
use this anymore, just use `mcs --version`

Author: harshavardhana

Makefile

@@ -1,23 +1,33 @@
+PWD := $(shell pwd)
+GOPATH := $(shell go env GOPATH)
+
 default: mcs
 
 .PHONY: mcs
 mcs:
 	@echo "Building mcs binary to './mcs'"
-	@(CGO_ENABLED=0 go build --tags=kqueue --ldflags "-s -w" -o mcs ./cmd/mcs)
+	@(CGO_ENABLED=0 go build -trimpath --tags=kqueue --ldflags "-s -w" -o mcs ./cmd/mcs)
+
+install: mcs
+	@echo "Installing mcs binary to '$(GOPATH)/bin/mcs'"
+	@mkdir -p $(GOPATH)/bin && cp -f $(PWD)/mcs $(GOPATH)/bin/mcs
+	@echo "Installation successful. To learn more, try \"mcs --help\"."
 
 swagger-gen:
 	@echo "Generating swagger server code from yaml"
 	@swagger generate server -A mcs --main-package=mcs --exclude-main -P models.Principal -f ./swagger.yml -r NOTICE
 
-build:
+assets:
 	@(cd portal-ui; yarn install; make build-static; cd ..)
-	@(CGO_ENABLED=0 go build --tags kqueue --ldflags "-s -w" -o mcs ./cmd/mcs)
 
 test:
-	@(go test ./restapi -v)
+	@(go test -race -v github.com/minio/mcs/restapi/...)
 
 coverage:
-	@(go test ./restapi -v -coverprofile=coverage.out && go tool cover -html=coverage.out && open coverage.html)
+	@(go test -v -coverprofile=coverage.out github.com/minio/mcs/restapi/... && go tool cover -html=coverage.out && open coverage.html)
 
 clean:
+	@echo "Cleaning up all the generated files"
+	@find . -name '*.test' | xargs rm -fv
+	@find . -name '*~' | xargs rm -fv
 	@rm -vf mcs

cmd/mcs/main.go

@@ -53,7 +53,6 @@ VERSION:
 
 var appCmds = []cli.Command{
 	serverCmd,
-	versionCmd,
 }
 
 func newApp(name string) *cli.App {
@@ -106,7 +105,7 @@ func newApp(name string) *cli.App {
 	app.Name = name
 	app.Version = pkg.Version
 	app.Author = "MinIO, Inc."
-	app.Usage = "mcs COMMAND"
+	app.Usage = "mcs"
 	app.Description = `MinIO Console Server`
 	app.Commands = commands
 	app.HideHelpCommand = true // Hide `help, h` command, we already have `minio --help`.