add utils

Author: leafney

utils/exec.go

@@ -0,0 +1,27 @@
+/**
+ * @Author:      leafney
+ * @Date:        2022-12-23 20:29
+ * @Project:     rpi-monitor
+ * @HomePage:    https://github.com/leafney
+ * @Description:
+ */
+
+package utils
+
+import (
+	"os/exec"
+	"strings"
+)
+
+// RunCommand execute shell command
+func RunCommand(str string) (string, error) {
+	cmd := exec.Command("/bin/sh", "-c", str)
+	outBytes, err := cmd.CombinedOutput()
+	if err != nil {
+		return "", err
+	}
+
+	// Clean the output and remove special characters
+	outStr := strings.TrimSpace(string(outBytes))
+	return outStr, nil
+}

utils/utils.go

@@ -0,0 +1,41 @@
+/**
+ * @Author:      leafney
+ * @Date:        2022-12-23 20:24
+ * @Project:     rpi-monitor
+ * @HomePage:    https://github.com/leafney
+ * @Description:
+ */
+
+package utils
+
+import (
+	"os"
+	"strconv"
+)
+
+func StrToFloat64(s string) float64 {
+	if s == "" {
+		return 0.0
+	}
+	if i, err := strconv.ParseFloat(s, 64); err != nil {
+		return 0.0
+	} else {
+		return i
+	}
+}
+
+func StrToFloat64WithDef(s string, def float64) float64 {
+	if s == "" {
+		return def
+	}
+	if i, err := strconv.ParseFloat(s, 64); err != nil {
+		return def
+	} else {
+		return i
+	}
+}
+
+func FIsExist(path string) bool {
+	_, err := os.Stat(path)
+	return err == nil || os.IsExist(err)
+}