Initial commit

internal/glance/cli.go

@@ -0,0 +1,42 @@
+package glance
+
+import (
+	"flag"
+	"os"
+)
+
+type CliIntent uint8
+
+const (
+	CliIntentServe       CliIntent = iota
+	CliIntentCheckConfig           = iota
+)
+
+type CliOptions struct {
+	Intent     CliIntent
+	ConfigPath string
+}
+
+func ParseCliOptions() (*CliOptions, error) {
+	flags := flag.NewFlagSet("", flag.ExitOnError)
+
+	checkConfig := flags.Bool("check-config", false, "Check whether the config is valid")
+	configPath := flags.String("config", "glance.yml", "Set config path")
+
+	err := flags.Parse(os.Args[1:])
+
+	if err != nil {
+		return nil, err
+	}
+
+	intent := CliIntentServe
+
+	if *checkConfig {
+		intent = CliIntentCheckConfig
+	}
+
+	return &CliOptions{
+		Intent:     intent,
+		ConfigPath: *configPath,
+	}, nil
+}