diff --git a/cobra_test.go b/cobra_test.go index f4814ea..c26633e 100644 --- a/cobra_test.go +++ b/cobra_test.go @@ -217,6 +217,13 @@ func fullSetupTest(input string) resulter { return fullTester(c, input) } +func noRRSetupTestSilenced(input string) resulter { + c := initialize() + c.SilenceErrors = true + c.SilenceUsage = true + return fullTester(c, input) +} + func noRRSetupTest(input string) resulter { c := initialize() @@ -488,8 +495,8 @@ func TestChildCommandFlags(t *testing.T) { t.Errorf("invalid flag should generate error") } - if !strings.Contains(r.Output, "unknown shorthand") { - t.Errorf("Wrong error message displayed, \n %s", r.Output) + if !strings.Contains(r.Error.Error(), "unknown shorthand") { + t.Errorf("Wrong error message displayed, \n %s", r.Error) } if flagi2 != 99 { @@ -506,9 +513,8 @@ func TestChildCommandFlags(t *testing.T) { if r.Error == nil { t.Errorf("invalid flag should generate error") } - - if !strings.Contains(r.Output, "unknown shorthand flag") { - t.Errorf("Wrong error message displayed, \n %s", r.Output) + if !strings.Contains(r.Error.Error(), "unknown shorthand flag") { + t.Errorf("Wrong error message displayed, \n %s", r.Error) } // Testing with persistent flag overwritten by child @@ -528,9 +534,8 @@ func TestChildCommandFlags(t *testing.T) { if r.Error == nil { t.Errorf("invalid input should generate error") } - - if !strings.Contains(r.Output, "invalid argument \"10E\" for i10E") { - t.Errorf("Wrong error message displayed, \n %s", r.Output) + if !strings.Contains(r.Error.Error(), "invalid argument \"10E\" for i10E") { + t.Errorf("Wrong error message displayed, \n %s", r.Error) } } @@ -547,10 +552,10 @@ func TestInvalidSubcommandFlags(t *testing.T) { cmd.AddCommand(cmdTimes) result := simpleTester(cmd, "times --inttwo=2 --badflag=bar") - - checkResultContains(t, result, "unknown flag: --badflag") - - if strings.Contains(result.Output, "unknown flag: --inttwo") { + // given that we are not checking here result.Error we check for + // stock usage message + checkResultContains(t, result, "cobra-test times [# times]") + if strings.Contains(result.Error.Error(), "unknown flag: --inttwo") { t.Errorf("invalid --badflag flag shouldn't fail on 'unknown' --inttwo flag") } @@ -809,6 +814,20 @@ func TestRootUnknownCommand(t *testing.T) { } } +func TestRootUnknownCommandSilenced(t *testing.T) { + r := noRRSetupTestSilenced("bogus") + s := "Run 'cobra-test --help' for usage.\n" + + if r.Output != "" { + t.Errorf("Unexpected response.\nExpecting to be: \n\"\"\n Got:\n %q\n", s, r.Output) + } + + r = noRRSetupTestSilenced("--strtwo=a bogus") + if r.Output != "" { + t.Errorf("Unexpected response.\nExpecting to be:\n\"\"\nGot:\n %q\n", s, r.Output) + } +} + func TestRootSuggestions(t *testing.T) { outputWithSuggestions := "Error: unknown command \"%s\" for \"cobra-test\"\n\nDid you mean this?\n\t%s\n\nRun 'cobra-test --help' for usage.\n" outputWithoutSuggestions := "Error: unknown command \"%s\" for \"cobra-test\"\nRun 'cobra-test --help' for usage.\n" @@ -872,8 +891,8 @@ func TestFlagsBeforeCommand(t *testing.T) { // With parsing error properly reported x = fullSetupTest("-i10E echo") - if !strings.Contains(x.Output, "invalid argument \"10E\" for i10E") { - t.Errorf("Wrong error message displayed, \n %s", x.Output) + if !strings.Contains(x.Error.Error(), "invalid argument \"10E\" for i10E") { + t.Errorf("Wrong error message displayed, \n %s", x.Error) } //With quotes diff --git a/command.go b/command.go index 2041243..f0587f9 100644 --- a/command.go +++ b/command.go @@ -61,6 +61,10 @@ type Command struct { pflags *flag.FlagSet // Flags that are declared specifically by this command (not inherited). lflags *flag.FlagSet + // SilenceErrors is an option to quiet errors down stream + SilenceErrors bool + // Silence Usage is an option to silence usage when an error occurs. + SilenceUsage bool // The *Run functions are executed in the following order: // * PersistentPreRun() // * PreRun() @@ -626,21 +630,31 @@ func (c *Command) Execute() (err error) { if cmd != nil { c = cmd } - c.Println("Error:", err.Error()) - c.Printf("Run '%v --help' for usage.\n", c.CommandPath()) + if !c.SilenceErrors { + c.Println("Error:", err.Error()) + c.Printf("Run '%v --help' for usage.\n", c.CommandPath()) + } return err } err = cmd.execute(flags) if err != nil { - if err == flag.ErrHelp { - cmd.HelpFunc()(cmd, args) - return nil + // If root command has SilentUsage flagged, + // all subcommands should respect it + if !cmd.SilenceUsage && !c.SilenceUsage { + c.Println(cmd.UsageString()) } - c.Println(cmd.UsageString()) - c.Println("Error:", err.Error()) + // If root command has SilentErrors flagged, + // all subcommands should respect it + if !cmd.SilenceErrors && !c.SilenceErrors { + if err == flag.ErrHelp { + cmd.HelpFunc()(cmd, args) + return nil + } + c.Println("Error:", err.Error()) + } + return err } - return }