Move version management into a variable.

build.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env sh
+
+go install --ldflags "-X main.version=$(git describe --abbrev=0 --tags)"

build/buildkitd.go

@@ -22,7 +22,6 @@ func waitBuildkitRunning() error {
 		return err
 	}
 	err = llb.WriteTo(dt, &dummyImageData)
-	fmt.Printf("Data is: %d\n", len(dummyImageData.String()))
 	if err != nil {
 		return err
 	}

commands/deploy.go

@@ -183,7 +183,7 @@ func deployCommandAction(cliContext *cli.Context) error {
 	}
 
 	if _, err := os.Stat(folderIn); err != nil {
-		return cli.NewExitError(fmt.Sprintf("The input folder at %s could not be read. Does it exist? %s", folderIn, err.Error()), 1)
+		return cli.NewExitError(fmt.Sprintf("The input folder at %s could not be read. Does it exist? %s\nSee https://github.com/distributed-containers-inc/sanic-site for an example.", folderIn, err.Error()), 1)
 	}
 	err = os.MkdirAll(folderOut, 0750)
 	if err != nil {

main.go

@@ -7,6 +7,10 @@ import (
 	"os"
 )
 
+//version is the version of this app.
+//Use --ldflags '-X main.version=(...)' with go build to update.
+var version = "master"
+
 func main() {
 
 	app := cli.NewApp()
@@ -22,7 +26,7 @@ func main() {
 
 	app.EnableBashCompletion = true
 
-	app.Version = "v1.2.8"
+	app.Version = version
 	app.Usage = "build & deploy kubernetes monorepos"
 
 	err := app.Run(os.Args)