improve command not found error for package gcmd

os/gcmd/gcmd_command_run.go

@@ -12,6 +12,8 @@ import (
 	"fmt"
 	"os"
 
+	"github.com/gogf/gf/v2/errors/gcode"
+	"github.com/gogf/gf/v2/errors/gerror"
 	"github.com/gogf/gf/v2/os/gcfg"
 	"github.com/gogf/gf/v2/text/gstr"
 	"github.com/gogf/gf/v2/util/gconv"
@@ -45,14 +47,13 @@ func (c *Command) RunWithValue(ctx context.Context) (value interface{}, err erro
 	}
 
 	// Print error and help command if no command found.
-	fmt.Printf(
-		"ERROR: command \"%s\" not found for arguments \"%s\"\n",
+	err = gerror.NewCodef(
+		gcode.CodeNotFound,
+		`command "%s" not found for arguments "%s"`,
 		gstr.Join(args, " "),
 		gstr.Join(os.Args, " "),
 	)
-	c.Print()
-
-	return nil, nil
+	return
 }
 
 func (c *Command) doRun(ctx context.Context, parser *Parser) (value interface{}, err error) {

os/gcmd/gcmd_z_unit_test.go

@@ -13,6 +13,8 @@ import (
 	"fmt"
 	"testing"
 
+	"github.com/gogf/gf/v2/errors/gcode"
+	"github.com/gogf/gf/v2/errors/gerror"
 	"github.com/gogf/gf/v2/frame/g"
 	"github.com/gogf/gf/v2/os/gcmd"
 	"github.com/gogf/gf/v2/os/gctx"
@@ -127,7 +129,9 @@ gf get golang.org/x/sys
 		}
 
 		if err = commandRoot.Run(ctx); err != nil {
-			g.Log().Fatal(ctx, err)
+			if gerror.Code(err) == gcode.CodeNotFound {
+				commandRoot.Print()
+			}
 		}
 	})
 }