✨ 迁移项目

pkg/helpers/config.go

@@ -0,0 +1,18 @@
+package helpers
+
+import (
+	"io/ioutil"
+
+	"github.com/pkg/errors"
+	yaml "gopkg.in/yaml.v2"
+)
+
+// LoadConfig read YAML-formatted config from filename into cfg.
+func LoadConfig(filename string, cfg interface{}) error {
+	buf, err := ioutil.ReadFile(filename)
+	if err != nil {
+		return errors.Wrap(err, "Error reading config file")
+	}
+
+	return yaml.UnmarshalStrict(buf, cfg)
+}

pkg/helpers/logerror.go

@@ -0,0 +1,13 @@
+package helpers
+
+import (
+	"github.com/go-kit/kit/log"
+	"github.com/go-kit/kit/log/level"
+)
+
+// LogError logs any error returned by f; useful when deferring Close etc.
+func LogError(logger log.Logger, message string, f func() error) {
+	if err := f(); err != nil {
+		level.Error(logger).Log("message", message, "error", err)
+	}
+}

pkg/helpers/math.go

@@ -0,0 +1,9 @@
+package helpers
+
+// MinUint32 return the min of a and b.
+func MinUint32(a, b uint32) uint32 {
+	if a < b {
+		return a
+	}
+	return b
+}