fix to read long output using buffer

keybase.go

@@ -2,6 +2,7 @@ package keybase
 
 import (
 	"bufio"
+	"bytes"
 	"context"
 	"encoding/json"
 	"fmt"
@@ -220,16 +221,26 @@ func (a *ChatAPI) initPipes(ctx context.Context, pipes Pipes) {
 	// reader
 	go func() {
 		r := bufio.NewReader(keyOut)
+		var buf bytes.Buffer
 		for {
 			select {
 			case <-ctx.Done():
 				return
 			default:
-				line, err := r.ReadBytes('\n')
+				line, isPrefix, err := r.ReadLine()
 				if err != nil {
 					a.errChan <- err
+				}
+				if isPrefix {
+					// if its not a complete line, write it to the buffer only so we loop again
+					buf.Write(line)
 				} else {
-					a.outChan <- line
+					// if the line is complete, write it to the buffer
+					buf.Write(line)
+					// then write the entire buffer to the channel
+					a.outChan <- buf.Bytes()
+					// then reset the buffer so it can be re-used
+					buf.Reset()
 				}
 			}
 		}