improve output of CLI mode for streaming APIs (#79)

Author: ktr0731

adapter/controller/cli.go

@@ -1,7 +1,6 @@
 package controller
 
 import (
-	"bytes"
 	"context"
 	"flag"
 	"fmt"
@@ -329,13 +328,10 @@ func (c *CLI) runAsCLI() int {
 			return
 		}
 
-		b := new(bytes.Buffer)
-		if _, err := b.ReadFrom(res); err != nil {
+		if _, err := io.Copy(c.ui.Writer(), res); err != nil {
 			errCh <- err
 			return
 		}
-
-		c.ui.Println(b.String())
 	}()
 
 	select {

meta/meta.go

@@ -7,5 +7,5 @@ import (
 const AppName = "evans"
 
 var (
-	Version = semver.MustParse("0.5.0")
+	Version = semver.MustParse("0.5.1")
 )

usecase/call.go

@@ -265,7 +265,7 @@ func (sw *bidiStreamSendWriter) sendRequest(ctx context.Context) {
 		}
 
 		req, err := sw.inputter.Input(sw.rpc.RequestMessage())
-		if err == io.EOF {
+		if errors.Cause(err) == io.EOF {
 			sw.s.Close()
 			return
 		}