bee/banner.go

61 lines
1.1 KiB
Go

package main
import (
"io"
"io/ioutil"
"os"
"runtime"
"text/template"
)
type vars struct {
GoVersion string
GOOS string
GOARCH string
NumCPU int
GOPATH string
GOROOT string
Compiler string
BeeVersion string
BeegoVersion string
}
// InitBanner loads the banner and prints it to output
// All errors are ignored, the application will not
// print the banner in case of error.
func InitBanner(out io.Writer, in io.Reader) {
if in == nil {
logger.Fatal("The input is nil")
}
banner, err := ioutil.ReadAll(in)
if err != nil {
logger.Fatalf("Error while trying to read the banner: %s", err)
}
show(out, string(banner))
}
func show(out io.Writer, content string) {
t, err := template.New("banner").
Funcs(template.FuncMap{"Now": Now}).
Parse(content)
if err != nil {
logger.Fatalf("Cannot parse the banner template: %s", err)
}
err = t.Execute(out, vars{
getGoVersion(),
runtime.GOOS,
runtime.GOARCH,
runtime.NumCPU(),
os.Getenv("GOPATH"),
runtime.GOROOT(),
runtime.Compiler,
version,
getBeegoVersion(),
})
MustCheck(err)
}