first commit

config.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/currantlabs/ble/linux"
+	"gopkg.in/ini.v1"
+)
+
+// Config represents a configuration
+type Config struct {
+	MQTT    MQTT
+	Host    *linux.Device
+}
+
+// NewConfig returns a new Config
+func NewConfig(file string) (*Config, error) {
+	log.Printf("[Config] Loading Configuration (%s)", file)
+	cfg, err := ini.Load(file)
+	if err != nil {
+		return &Config{}, err
+	}
+
+	sec, err := cfg.GetSection("MQTT")
+	if err != nil {
+		return &Config{}, err
+	}
+	if !sec.HasKey("host") {
+		return &Config{}, fmt.Errorf("Configuration requires MQTT host")
+	}
+
+	if !sec.HasKey("port") {
+		log.Print("MQTT port not defined; defaulting to 1883")
+		sec.NewKey("port", "1883")
+	}
+
+	mqtt := MQTT{
+		Host: sec.Key("host").String(),
+		Port: sec.Key("port").String(),
+		User: sec.Key("user").String(),
+		Pass: sec.Key("pass").String(),
+	}
+
+
+	return &Config{
+		MQTT:    mqtt,
+	}, nil
+}
+