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micromdm.go
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micromdm.go
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package main
import (
"flag"
"fmt"
"math/rand"
"os"
"strings"
"text/tabwriter"
"time"
"github.com/micromdm/go4/version"
)
func init() {
rand.Seed(time.Now().UnixNano())
}
func main() {
if len(os.Args) < 2 {
usage()
os.Exit(1)
}
var run func([]string) error
switch strings.ToLower(os.Args[1]) {
case "version", "-version":
version.Print()
return
case "serve":
run = serve
default:
usage()
os.Exit(1)
}
if err := run(os.Args[2:]); err != nil {
fmt.Fprintf(os.Stderr, "%v\n", err)
os.Exit(1)
}
}
func usage() error {
helpText := `USAGE: micromdm <COMMAND>
Available Commands:
serve
version
Use micromdm <command> -h for additional usage of each command.
Example: micromdm serve -h
`
fmt.Println(helpText)
return nil
}
func usageFor(fs *flag.FlagSet, short string) func() {
return func() {
fmt.Fprintf(os.Stderr, "USAGE\n")
fmt.Fprintf(os.Stderr, " %s\n", short)
fmt.Fprintf(os.Stderr, "\n")
fmt.Fprintf(os.Stderr, "FLAGS\n")
w := tabwriter.NewWriter(os.Stdout, 0, 2, 2, ' ', 0)
fs.VisitAll(func(f *flag.Flag) {
fmt.Fprintf(w, "\t-%s %s\t%s\n", f.Name, f.DefValue, f.Usage)
})
w.Flush()
fmt.Fprintf(os.Stderr, "\n")
}
}