midi-request-trigger/flags.go

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1.3 KiB
Go
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2023-09-09 20:37:39 -05:00
package main
import (
"flag"
"fmt"
"os"
)
// Flags supplied to cli.
type Flags struct {
ConfigPath string
HTTPBind string
HTTPPort uint
ListMidiDevices bool
}
// Parse the supplied flags.
func (a *App) ParseFlags() {
app.flags = new(Flags)
flag.Usage = func() {
fmt.Printf(serviceName + ": " + serviceDescription + ".\n\nUsage:\n")
flag.PrintDefaults()
}
// If version is requested.
var printVersion bool
flag.BoolVar(&printVersion, "v", false, "Print version")
// Override configuration path.
usage := "Load configuration from `FILE`"
flag.StringVar(&app.flags.ConfigPath, "config", "", usage)
flag.StringVar(&app.flags.ConfigPath, "c", "", usage+" (shorthand)")
// Config overrides for http configurations.
flag.StringVar(&app.flags.HTTPBind, "http-bind", "", "Bind address for http server")
flag.UintVar(&app.flags.HTTPPort, "http-port", 0, "Bind port for http server")
// Lists available devices.
usage = "List available midi devices for use in configurations"
flag.BoolVar(&app.flags.ListMidiDevices, "list", false, usage)
flag.BoolVar(&app.flags.ListMidiDevices, "l", false, usage+" (shorthand)")
// Parse the flags.
flag.Parse()
// Print version and exit if requested.
if printVersion {
fmt.Println(serviceName + ": " + serviceVersion)
os.Exit(0)
}
}