Add version information

Author: codekoala

.travis.yml

@@ -10,13 +10,14 @@ install:
 
 script:
   - make test
-  - make build
+  - make all
 
 deploy:
   provider: releases
   api_key:
     secure: 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
-  file: "./bin/lanes"
+  file_glob: true
+  file: ./bin/*
   skip_cleanup: true
   overwrite: true
   on:

Makefile

@@ -1,5 +1,21 @@
+REPO ?= github.com/codekoala/go-aws-lanes
+TAG ?= dev
+BUILD_DATE := $(shell date +%FT%T%z)
+
+all: linux osx checksums
+
+linux:
+	GOOS=linux GOARCH=amd64 $(MAKE) build
+
+osx:
+	GOOS=darwin GOARCH=amd64 $(MAKE) build
+
 build: bin
-	go build -race -ldflags '-s' -o ./bin/lanes ./cmd/lanes
+	$(eval SUFFIX=_$(GOOS)_$(GOARCH))
+	go build -ldflags "-s -X $(REPO)/version.Tag=$(TAG) -X $(REPO)/version.BuildDate=$(BUILD_DATE)" -o ./bin/lanes$(SUFFIX) ./cmd/lanes
+
+checksums:
+	cd ./bin/; sha256sum lanes* > SHA256SUMS
 
 compress:
 	@upx ./bin/lanes

cmd/root.go

@@ -33,6 +33,7 @@ func init() {
 	RootCmd.AddCommand(shCmd)
 	RootCmd.AddCommand(sshCmd)
 	RootCmd.AddCommand(switchCmd)
+	RootCmd.AddCommand(versionCmd)
 
 	shCmd.Flags().BoolP("confirm", "c", false, "Bypass manual confirmation step")
 	filePushCmd.Flags().BoolP("confirm", "c", false, "Bypass manual confirmation step")

cmd/version.go

@@ -0,0 +1,20 @@
+package cmd
+
+import (
+	"runtime"
+
+	"github.com/spf13/cobra"
+
+	"github.com/codekoala/go-aws-lanes/version"
+)
+
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "Display Lanes version",
+
+	Run: func(cmd *cobra.Command, args []string) {
+		cmd.Println("lanes", version.String())
+		cmd.Println("Build date:", version.BuildDate)
+		cmd.Println("Go:", runtime.Version())
+	},
+}

version/version.go

@@ -0,0 +1,26 @@
+package version
+
+import (
+	"fmt"
+	"runtime"
+)
+
+var (
+	Version   = "v0.1.0"
+	Tag       = "dev"
+	BuildDate string
+)
+
+func String() string {
+	return fmt.Sprintf("%s-%s", Version, Tag)
+}
+
+func Full() string {
+	return fmt.Sprintf("%s; built: %s; %s", String(), BuildDate, runtime.Version())
+}
+
+func init() {
+	if BuildDate == "" {
+		BuildDate = "unknown"
+	}
+}