Add a Go report card, fix lint

README.md

@@ -1,6 +1,7 @@
 # A minimal logging API for Go
 
 [![Go Reference](https://pkg.go.dev/badge/github.com/go-logr/logr.svg)](https://pkg.go.dev/github.com/go-logr/logr)
+[![Go Report Card](https://goreportcard.com/badge/github.com/go-logr/logr)](https://goreportcard.com/report/github.com/go-logr/logr)
 [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/go-logr/logr/badge)](https://securityscorecards.dev/viewer/?platform=github.com&org=go-logr&repo=logr)
 
 logr offers an(other) opinion on how Go programs and libraries can do logging

examples/tab_logger.go

@@ -36,10 +36,10 @@ var _ logr.LogSink = &tabLogSink{}
 
 // Note that Init usually takes a pointer so it can modify the receiver to save
 // runtime info.
-func (_ *tabLogSink) Init(info logr.RuntimeInfo) {
+func (*tabLogSink) Init(info logr.RuntimeInfo) {
 }
 
-func (_ tabLogSink) Enabled(level int) bool {
+func (tabLogSink) Enabled(level int) bool {
 	return true
 }
 

examples/usage_example.go

@@ -51,17 +51,20 @@ var objectMap = map[string]Object{
 	},
 }
 
+// Object is an app contruct that might want to be logged.
 type Object struct {
 	Name    string
 	Kind    string
 	Details any
 }
 
+// Client is a simulated client in this example app.
 type Client struct {
 	objects map[string]Object
 	log     logr.Logger
 }
 
+// Get retrieves an object.
 func (c *Client) Get(key string) (Object, error) {
 	c.log.V(1).Info("fetching object", "key", key)
 	obj, ok := c.objects[key]
@@ -72,6 +75,7 @@ func (c *Client) Get(key string) (Object, error) {
 	return obj, nil
 }
 
+// Save stores an object.
 func (c *Client) Save(obj Object) error {
 	c.log.V(1).Info("saving object", "key", obj.Name, "object", obj)
 	if rand.Intn(2) == 0 {
@@ -81,6 +85,7 @@ func (c *Client) Save(obj Object) error {
 	return nil
 }
 
+// WatchNext waits for object updates.
 func (c *Client) WatchNext() string {
 	time.Sleep(2 * time.Second)
 
@@ -98,12 +103,14 @@ func (c *Client) WatchNext() string {
 	return ""
 }
 
+// Controller is the main point of this example.
 type Controller struct {
 	log          logr.Logger
 	expectedKind string
 	client       *Client
 }
 
+// Run starts the example controller.
 func (c *Controller) Run() {
 	c.log.Info("starting reconciliation")
 
@@ -141,6 +148,7 @@ func (c *Controller) Run() {
 	c.log.Info("stopping reconciliation")
 }
 
+// NewController allocates and initializes a Controller.
 func NewController(log logr.Logger, objectKind string) *Controller {
 	ctrlLogger := log.WithName("controller").WithName(objectKind)
 	client := &Client{