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Better error message

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Calling `cobra-test echo times one two turkey` where `one` and `two` are
valid arguments but `turkey` is not now results in.

Error: invalid argument "turkey" for "cobra-test echo times"
Run 'cobra-test echo times --help' for usage.
This commit is contained in:
Eric Paris 2015-06-29 17:05:49 -04:00
parent 0a7a850026
commit 9a9d01c9ec
2 changed files with 6 additions and 2 deletions
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2
cobra_test.go
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@ -768,7 +768,7 @@ func TestRootNoCommandHelp(t *testing.T) {
func TestRootUnknownCommand(t *testing.T) { func TestRootUnknownCommand(t *testing.T) {
r := noRRSetupTest("bogus") r := noRRSetupTest("bogus")
s := "Error: unknown command \"bogus\"\nRun 'cobra-test --help' for usage.\n" s := "Error: unknown command \"bogus\" for \"cobra-test\"\nRun 'cobra-test --help' for usage.\n"
if r.Output != s { if r.Output != s {
t.Errorf("Unexpected response.\nExpecting to be:\n %q\nGot:\n %q\n", s, r.Output) t.Errorf("Unexpected response.\nExpecting to be:\n %q\nGot:\n %q\n", s, r.Output)

6
command.go
View file

@ -422,7 +422,7 @@ func (c *Command) Find(args []string) (*Command, []string, error) {
} }
// root command with subcommands, do subcommand checking // root command with subcommands, do subcommand checking
if commandFound == c && len(argsWOflags) > 0 { if commandFound == c && len(argsWOflags) > 0 {
return nil, a, fmt.Errorf("unknown command %q", argsWOflags[0]) return commandFound, a, fmt.Errorf("unknown command %q for %q", argsWOflags[0], commandFound.CommandPath())
} }
return commandFound, a, nil return commandFound, a, nil
@ -539,6 +539,10 @@ func (c *Command) Execute() (err error) {
cmd, flags, err := c.Find(args) cmd, flags, err := c.Find(args)
if err != nil { if err != nil {
// If found parse to a subcommand and then failed, talk about the subcommand
if cmd != nil {
c = cmd
}
c.Println("Error:", err.Error()) c.Println("Error:", err.Error())
c.Printf("Run '%v --help' for usage.\n", c.CommandPath()) c.Printf("Run '%v --help' for usage.\n", c.CommandPath())
return err return err