Fixed GCP login crash

cmd/gcpstream.go

@@ -23,8 +23,10 @@ THE SOFTWARE.
 package cmd
 
 import (
+	"context"
 	"log"
 	"strconv"
+	"time"
 
 	"github.com/aurc/loggo/internal/loggo"
 	"github.com/aurc/loggo/internal/reader"
@@ -91,6 +93,11 @@ from a given selected project and GCP logging filters:
 			if len(projectName) == 0 {
 				log.Fatal("--project flag is required.")
 			}
+			err := reader.CheckAuth(context.Background(), projectName)
+			if err != nil {
+				log.Fatal("Unable to obtain GCP credentials. ", err)
+			}
+			time.Sleep(time.Second)
 			reader := reader.MakeGCPReader(projectName, filter, reader.ParseFrom(from), nil)
 			app := loggo.NewLoggoApp(reader, templateFile)
 			app.Run()

internal/loggo/app.go

@@ -25,6 +25,7 @@ package loggo
 import (
 	"github.com/aurc/loggo/internal/config"
 	"github.com/aurc/loggo/internal/reader"
+	"github.com/aurc/loggo/internal/util"
 	"github.com/gdamore/tcell/v2"
 	"github.com/rivo/tview"
 )
@@ -71,6 +72,7 @@ func (a *LoggoApp) Run() {
 		SetRoot(a.pages, true).
 		EnableMouse(true).
 		Run(); err != nil {
+		util.Log().Error(err)
 		panic(err)
 	}
 }

internal/reader/gcp_reader.go

@@ -70,14 +70,20 @@ func MakeGCPReader(project, filter, freshness string, strChan chan string) *gcpS
 	}
 }
 
-func (s *gcpStream) StreamInto() error {
+func (s *gcpStream) StreamInto() (err error) {
+	defer func() {
+		r := recover()
+		if r != nil {
+			if e, ok := r.(error); ok {
+				err = e
+			} else {
+				err = fmt.Errorf("%+v", r)
+			}
+		}
+	}()
 	ctx := context.Background()
-	err := s.checkAuth(ctx)
-	if err != nil {
-		return err
-	}
-
-	c, err := logging.NewClient(ctx)
+	var c *logging.Client
+	c, err = logging.NewClient(ctx)
 	if err != nil {
 		return err
 	}
@@ -196,11 +202,11 @@ func (s *gcpStream) Close() {
 	close(s.strChan)
 }
 
-func (s *gcpStream) checkAuth(ctx context.Context) error {
+func CheckAuth(ctx context.Context, projectID string) error {
 	c, err := logging.NewClient(ctx)
 	if err == nil {
 		it := c.ListLogs(ctx, &loggingpb.ListLogsRequest{
-			ResourceNames: []string{"projects/" + s.projectID},
+			ResourceNames: []string{"projects/" + projectID},
 			PageSize:      1,
 		})
 		_, err = it.Next()