cli: initial commit

this introduces the embd cli tool

embd/.gitignore

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+embd

embd/detect.go

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+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/codegangsta/cli"
+	"github.com/kidoman/embd"
+)
+
+func detect(c *cli.Context) {
+	host, rev, err := embd.DetectHost()
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+	fmt.Printf("detected host %v (rev %v)\n", host, rev)
+}
+
+var detectCmd = cli.Command{
+	Name:   "detect",
+	Usage:  "detect and display information about the host",
+	Action: detect,
+}
+
+func init() {
+	registerCommand(detectCmd)
+}

embd/main.go

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+package main
+
+import (
+	"os"
+
+	"github.com/codegangsta/cli"
+	_ "github.com/kidoman/embd/host/all"
+)
+
+var version = "0.1.0"
+
+var commands []cli.Command
+
+func registerCommand(cmd cli.Command) {
+	commands = append(commands, cmd)
+}
+
+func main() {
+	app := cli.NewApp()
+	app.Name = "embd"
+	app.Usage = "superheroic embedded utility belt"
+	app.Version = version
+	app.Commands = commands
+
+	app.Run(os.Args)
+}