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Merge pull request #286 from dnephin/merge_flags_before_adding_help

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Merge persistent flags before checking for a help flag
This commit is contained in:
Eric Paris 2016-10-10 11:14:18 -04:00 committed by GitHub
commit ec2fe78599
2 changed files with 16 additions and 0 deletions
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1
command.go
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@ -735,6 +735,7 @@ func (c *Command) ExecuteC() (cmd *Command, err error) {
}
func (c *Command) initHelpFlag() {
c.mergePersistentFlags()
if c.Flags().Lookup("help") == nil {
c.Flags().BoolP("help", "h", false, "help for "+c.Name())
}

15
command_test.go
View file

@ -136,6 +136,21 @@ func Test_DisableFlagParsing(t *testing.T) {
}
}
func TestInitHelpFlagMergesFlags(t *testing.T) {
usage := "custom flag"
baseCmd := Command{Use: "testcmd"}
baseCmd.PersistentFlags().Bool("help", false, usage)
cmd := Command{Use: "do"}
baseCmd.AddCommand(&cmd)
cmd.initHelpFlag()
actual := cmd.Flags().Lookup("help").Usage
if actual != usage {
t.Fatalf("Expected the help flag from the base command with usage '%s', " +
"but got the default with usage '%s'", usage, actual)
}
}
func TestCommandsAreSorted(t *testing.T) {
EnableCommandSorting = true