Initial commit

config.go

@@ -0,0 +1,39 @@
+package main
+
+import (
+	"io/ioutil"
+
+	"gopkg.in/yaml.v2"
+)
+
+// Sensor defines configuration for a temperature sensor.
+type Sensor struct {
+	ID          string  `yaml:"id"`
+	Alias       string  `yaml:"alias"`
+	HighTemp    float64 `yaml:"hightemp"`
+	LowTemp     float64 `yaml:"lowtemp"`
+	HeatGpio    int32   `yaml:"heatgpio"`
+	HeatPullup  bool    `yaml:"heatpullup"`
+	HeatMinutes int32   `yaml:"heatminutes"`
+	CoolGpio    int32   `yaml:"coolgpio"`
+	CoolPullup  bool    `yaml:"coolpullup"`
+	CoolMinutes int32   `yaml:"coolminutes"`
+}
+
+// Config contains the applications configuration
+type Config struct {
+	Sensors []Sensor `yaml:"sensors"`
+}
+
+// LoadConfig will loads a file and parses it into a Config struct
+func LoadConfig(path string) (*Config, error) {
+	data, err := ioutil.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+
+	var config Config
+	yaml.Unmarshal(data, &config)
+
+	return &config, nil
+}

config_test.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_LoadConfig(t *testing.T) {
+	testSensor := Sensor{
+		ID:          "28-000008083108",
+		Alias:       "fermenter",
+		HighTemp:    8,
+		LowTemp:     4,
+		HeatGpio:    5,
+		HeatPullup:  true,
+		HeatMinutes: 5,
+		CoolGpio:    17,
+		CoolPullup:  false,
+		CoolMinutes: 10}
+
+	testConfig := Config{Sensors: []Sensor{testSensor}}
+
+	loadedConfig, err := LoadConfig("test_config.yml")
+	assert.Equal(t, nil, err)
+	assert.Equal(t, &testConfig, loadedConfig)
+
+	_, err = LoadConfig("thisfiledoesnotexist")
+	assert.NotEqual(t, nil, err)
+}

main.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/yryz/ds18b20"
+)
+
+func main() {
+	sensors, err := ds18b20.Sensors()
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Printf("Sensors: %v\n", sensors)
+
+	for _, sensor := range sensors {
+		t, err := ds18b20.Temperature(sensor)
+		if err == nil {
+			fmt.Printf("Sensor: %s, Temperature %.2f°C\n", sensor, t)
+		}
+	}
+}

test_config.yml

@@ -0,0 +1,11 @@
+sensors:
+- id: 28-000008083108
+  alias: fermenter
+  hightemp: 8
+  lowtemp: 4
+  heatgpio: 5
+  heatpullup: true
+  heatminutes: 5
+  coolgpio: 17
+  coolpullup: false
+  coolminutes: 10