48 lines
797 B
Go
48 lines
797 B
Go
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
)
|
|
|
|
// asciiLogo (see version.go) is printed by the `version` command.
|
|
|
|
func main() {
|
|
args := os.Args[1:]
|
|
isSilent := hasSilentFlag(args)
|
|
if !isSilent {
|
|
printVersionHeader(args)
|
|
}
|
|
|
|
previousStderr := os.Stderr
|
|
var nullOutput *os.File
|
|
if isSilent {
|
|
var err error
|
|
nullOutput, err = os.OpenFile(os.DevNull, os.O_WRONLY, 0)
|
|
if err != nil {
|
|
fmt.Fprintln(previousStderr, err)
|
|
os.Exit(1)
|
|
}
|
|
os.Stderr = nullOutput
|
|
}
|
|
|
|
err := rootCmd.Execute()
|
|
if nullOutput != nil {
|
|
os.Stderr = previousStderr
|
|
nullOutput.Close()
|
|
}
|
|
if err != nil {
|
|
fmt.Fprintln(os.Stderr, err)
|
|
os.Exit(1)
|
|
}
|
|
}
|
|
|
|
func hasSilentFlag(args []string) bool {
|
|
for _, arg := range args {
|
|
if arg == "--silent" || arg == "--silent=true" {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|