Merge pull request #68 from guitarlum/master

nil pointer fix - also addressed in issue #64

client.go

@@ -86,6 +86,10 @@ func newClient(options *Options, clientGetter genericclioptions.RESTClientGetter
 		}
 	}
 
+	if options.Output == nil {
+		options.Output = os.Stdout
+	}
+
 	actionConfig := new(action.Configuration)
 	err = actionConfig.Init(
 		clientGetter,
@@ -104,6 +108,7 @@ func newClient(options *Options, clientGetter genericclioptions.RESTClientGetter
 		ActionConfig: actionConfig,
 		linting:      options.Linting,
 		DebugLog:     debugLog,
+		output:       options.Output,
 	}, nil
 }
 
@@ -301,6 +306,7 @@ func (c *HelmClient) install(ctx context.Context, spec *ChartSpec) (*release.Rel
 					Getters:          c.Providers,
 					RepositoryConfig: c.Settings.RepositoryConfig,
 					RepositoryCache:  c.Settings.RepositoryCache,
+					Out:              c.output,
 				}
 				if err := man.Update(); err != nil {
 					return nil, err

client_test.go

@@ -1,20 +1,23 @@
 package helmclient
 
 import (
+	"bytes"
 	"context"
-
 	"helm.sh/helm/v3/pkg/repo"
 	"k8s.io/client-go/rest"
 )
 
 func ExampleNew() {
+	var outputBuffer bytes.Buffer
+
 	opt := &Options{
 		Namespace:        "default", // Change this to the namespace you wish the client to operate in.
 		RepositoryCache:  "/tmp/.helmcache",
 		RepositoryConfig: "/tmp/.helmrepo",
 		Debug:            true,
 		Linting:          true,
 		DebugLog:         func(format string, v ...interface{}) {},
+		Output:           &outputBuffer, // Not mandatory, leave open for default os.Stdout
 	}
 
 	helmClient, err := New(opt)

types.go

@@ -1,6 +1,7 @@
 package helmclient
 
 import (
+	"io"
 	"time"
 
 	"helm.sh/helm/v3/pkg/getter"
@@ -28,14 +29,15 @@ type RestConfClientOptions struct {
 	RestConfig *rest.Config
 }
 
-// Options defines the options of a client.
+// Options defines the options of a client. If Output is not set, os.Stdout will be used.
 type Options struct {
 	Namespace        string
 	RepositoryConfig string
 	RepositoryCache  string
 	Debug            bool
 	Linting          bool
 	DebugLog         action.DebugLog
+	Output           io.Writer
 }
 
 // RESTClientGetter defines the values of a helm REST client.
@@ -54,6 +56,7 @@ type HelmClient struct {
 	// ActionConfig is the helm action configuration.
 	ActionConfig *action.Configuration
 	linting      bool
+	output       io.Writer
 	DebugLog     action.DebugLog
 }