Add license and go report

Signed-off-by: Dušan Borovčanin <[email protected]>

.github/workflows/go.yml

@@ -11,15 +11,15 @@ jobs:
       with:
         go-version: 1.13
       id: go
-    
+
     - name: Check out code into the Go module directory
       uses: actions/checkout@v1
 
     - name: test
       run: |
         go test -v -race -tags test -coverprofile=profile.out -covermode=atomic ./...
-    
-    - name: Upload coverage to Codecov  
+
+    - name: Upload coverage to Codecov
       uses: codecov/codecov-action@v1
       with:
         token: ${{ secrets.CODECOV_TOKEN }}

README.md

@@ -1,6 +1,8 @@
 # SenML
 
 [![coverage][cov-badge]][cov-url]
+[![go report card][grc-badge]][grc-url]
+[![license][license]](LICENSE)
 
 This repository contains a lightweight implementation of [RFC 8428 Sensor Measurement Lists (SenML)](https://tools.ietf.org/html/rfc8428)
 
@@ -23,3 +25,6 @@ All SenML Records in a Pack must have the same version number. This is typically
 
 [cov-badge]: https://codecov.io/gh/mainflux/senml/branch/master/graph/badge.svg
 [cov-url]: https://codecov.io/gh/mainflux/senml
+[grc-badge]: https://goreportcard.com/badge/github.com/mainflux/senml
+[grc-url]: https://goreportcard.com/report/github.com/mainflux/senml
+[license]: https://img.shields.io/badge/license-Apache%20v2.0-blue.svg

senml.go

@@ -227,14 +227,21 @@ func Validate(p Pack) error {
 		if valCnt < 1 {
 			return ErrNoValues
 		}
-		l := name[0]
-		if (l == '-') || (l == ':') || (l == '.') || (l == '/') || (l == '_') {
-			return ErrBadChar
+		if err := validateName(name); err != nil {
+			return err
 		}
-		for _, l := range name {
-			if (l < 'a' || l > 'z') && (l < 'A' || l > 'Z') && (l < '0' || l > '9') && (l != '-') && (l != ':') && (l != '.') && (l != '/') && (l != '_') {
-				return ErrBadChar
-			}
+	}
+	return nil
+}
+
+func validateName(name string) error {
+	l := name[0]
+	if (l == '-') || (l == ':') || (l == '.') || (l == '/') || (l == '_') {
+		return ErrBadChar
+	}
+	for _, l := range name {
+		if (l < 'a' || l > 'z') && (l < 'A' || l > 'Z') && (l < '0' || l > '9') && (l != '-') && (l != ':') && (l != '.') && (l != '/') && (l != '_') {
+			return ErrBadChar
 		}
 	}
 	return nil

senml_test.go

@@ -28,7 +28,7 @@ var (
 func pack() senml.Pack {
 	return senml.Pack{
 		Records: []senml.Record{
-			senml.Record{
+			{
 				BaseName:    "base-name",
 				BaseTime:    100,
 				BaseUnit:    "base-unit",
@@ -42,7 +42,7 @@ func pack() senml.Pack {
 				Value:       &value,
 				Sum:         &sum,
 			},
-			senml.Record{
+			{
 				BaseName:    "base-name",
 				BaseTime:    100,
 				BaseUnit:    "base-unit",