Handle interrupts [CLI-151] (#273)

* Handle interrupts

* Fix typo

* Use context

internal/cli/root.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"os"
+	"os/signal"
 
 	"github.com/auth0/auth0-cli/internal/ansi"
 	"github.com/auth0/auth0-cli/internal/buildinfo"
@@ -119,11 +120,26 @@ func Execute() {
 	// for most of the architectures there's no requirements:
 	ansi.InitConsole()
 
-	if err := rootCmd.ExecuteContext(context.TODO()); err != nil {
+	if err := rootCmd.ExecuteContext(contextWithSignal(os.Interrupt)); err != nil {
 		cli.renderer.Heading("error")
 		cli.renderer.Errorf(err.Error())
 
 		instrumentation.ReportException(err)
 		os.Exit(1)
 	}
 }
+
+func contextWithSignal(sigs ...os.Signal) context.Context {
+	ctx, cancel := context.WithCancel(context.Background())
+
+	ch := make(chan os.Signal, 1)
+	signal.Notify(ch, sigs...)
+
+	go func() {
+		<-ch
+		defer cancel()
+		os.Exit(0)
+	}()
+
+	return ctx
+}

internal/cli/template.go

@@ -183,7 +183,7 @@ func (cli *cli) obtainCustomTemplateData(ctx context.Context) (*branding.Templat
 
 	g.Go(func() error {
 		var err error
-		clients, err = cli.api.Client.List(management.ExcludeFields(clientExcludedList...))
+		clients, err = cli.api.Client.List(management.Context(ctx), management.ExcludeFields(clientExcludedList...))
 		return err
 	})