--- a/cmd_edit.go	Mon Dec 07 08:38:09 2020 +0900
+++ b/cmd_edit.go	Mon Dec 07 10:10:16 2020 +0900
@@ -8,6 +8,8 @@
 	"os"
 	"path/filepath"
 	"time"
+
+	"golang.org/x/xerrors"
 )
 
 type editCmd struct{}
@@ -27,7 +29,7 @@
 	fs.SetOutput(errorWriter)
 
 	if err := fs.Parse(argv); err != nil {
-		return nil
+		return xerrors.Errorf("[error] failed parse argv %+w", err)
 	}
 
 	var growiPATH string
@@ -47,25 +49,25 @@
 	if alreadyExistsFile {
 		info, err := os.Stat(localFilePATH)
 		if err != nil {
-			return err
+			return xerrors.Errorf("[error] failed file stat %s %+w", localFilePATH, err)
 		}
 		beforeTime = info.ModTime()
 	}
 
 	client, err := NewGrowiClient(config.URL, config.TOKEN)
 	if err != nil {
-		return err
+		return xerrors.Errorf("[error] failed growi client %+w", err)
 	}
 
 	err = doEdit(localFilePATH)
 	if err != nil {
-		return fmt.Errorf("failed edit mardkwodn file %+v", err)
+		return xerrors.Errorf("failed edit mardkwodn file %+w", err)
 	}
 
 	if alreadyExistsFile {
 		info, err := os.Stat(localFilePATH)
 		if err != nil {
-			return err
+			return xerrors.Errorf("[error] failed file stat %s %+w", localFilePATH, err)
 		}
 
 		if info.ModTime() == beforeTime {

--- a/cmd_push.go	Mon Dec 07 08:38:09 2020 +0900
+++ b/cmd_push.go	Mon Dec 07 10:10:16 2020 +0900
@@ -23,7 +23,7 @@
 	fs.SetOutput(errorWriter)
 
 	if err := fs.Parse(argv); err != nil {
-		return nil
+		return xerrors.Errorf("[error] failed parse argv %+w", err)
 	}
 
 	if fs.NArg() < 1 {
@@ -32,7 +32,7 @@
 
 	client, err := NewGrowiClient(config.URL, config.TOKEN)
 	if err != nil {
-		return err
+		return xerrors.Errorf("[error] failed growi client %+w", err)
 	}
 
 	markdownPATH := fs.Arg(0)
@@ -40,7 +40,7 @@
 	id, err := client.IsExistsPageOnGrowi(growiSystemPath)
 
 	if err != nil {
-		return err
+		return xerrors.Errorf("[error] failed get page %s %+w", growiSystemPath, err)
 	}
 
 	if id == nil {

--- a/config.go	Mon Dec 07 08:38:09 2020 +0900
+++ b/config.go	Mon Dec 07 10:10:16 2020 +0900
@@ -7,6 +7,7 @@
 	"path/filepath"
 
 	"github.com/goccy/go-yaml"
+	"golang.org/x/xerrors"
 )
 
 type growiConfig struct {
@@ -21,12 +22,12 @@
 	configFilePATH, _ := getConfingPATH()
 	configBytes, err := ioutil.ReadFile(configFilePATH)
 	if err != nil {
-		return nil, err
+		return nil, xerrors.Errorf("failed read %s : %+w", configFilePATH, err)
 	}
 	config := growiConfig{}
 
 	if err := yaml.Unmarshal(configBytes, &config); err != nil {
-		return nil, err
+		return nil, xerrors.Errorf("failed unmarshal yaml at %s, %+w", configFilePATH, err)
 	}
 	return &config, nil
 }
@@ -34,7 +35,7 @@
 func getConfingPATH() (string, error) {
 	home, err := os.UserHomeDir()
 	if err != nil {
-		return "", err
+		return "", xerrors.Errorf("[error] failed get user homedir %+w", err)
 	}
 	configFilePATH := filepath.Join(home, ".config", "growsync", "config.yaml")
 	if !existsFile(configFilePATH) {

--- a/editor.go	Mon Dec 07 08:38:09 2020 +0900
+++ b/editor.go	Mon Dec 07 10:10:16 2020 +0900
@@ -6,6 +6,7 @@
 	"strings"
 
 	"github.com/mattn/go-tty"
+	"golang.org/x/xerrors"
 )
 
 func doEdit(mdfilePATH string) error {
@@ -15,7 +16,7 @@
 	}
 	tty, err := tty.Open()
 	if err != nil {
-		return err
+		return xerrors.Errorf("[error] failed open tty %+w", err)
 	}
 	defer tty.Close()
 
@@ -27,5 +28,9 @@
 	cmd.Stdout = tty.Output()
 	cmd.Stderr = tty.Output()
 
-	return cmd.Run()
+	if err := cmd.Run(); err != nil {
+		return xerrors.Errorf("[error] failed exec editor %+w", err)
+	}
+
+	return nil
 }