func (cmd *Help) Execute(c flags.FlagContext) error {
if len(c.Args()) == 0 {
help.ShowHelp(cmd.ui.Writer(), help.GetHelpTemplate())
} else {
cmdName := c.Args()[0]
if commandregistry.Commands.CommandExists(cmdName) {
cmd.ui.Say(commandregistry.Commands.CommandUsage(cmdName))
} else {
//check plugin commands
found := false
for _, meta := range cmd.config.Plugins() {
for _, c := range meta.Commands {
if c.Name == cmdName || c.Alias == cmdName {
output := T("NAME:") + "\n"
output += " " + c.Name + " - " + c.HelpText + "\n"
if c.Alias != "" {
output += "\n" + T("ALIAS:") + "\n"
output += " " + c.Alias + "\n"
}
output += "\n" + T("USAGE:") + "\n"
output += " " + c.UsageDetails.Usage + "\n"
if len(c.UsageDetails.Options) > 0 {
output += "\n" + T("OPTIONS:") + "\n"
//find longest name length
l := 0
for n := range c.UsageDetails.Options {
if len(n) > l {
l = len(n)
}
}
for n, f := range c.UsageDetails.Options {
output += " -" + n + strings.Repeat(" ", 7+(l-len(n))) + f + "\n"
}
}
cmd.ui.Say(output)
found = true
}
}
}
if !found {
return errors.New("'" + cmdName + "' is not a registered command. See 'cf help'")
}
}
}
return nil
}
var buffer *gbytes.Buffer
BeforeEach(func() {
buffer = gbytes.NewBuffer()
})
AfterEach(func() {
buffer.Close()
})
It("shows help for all commands", func() {
dummyTemplate := `
{{range .Commands}}{{range .CommandSubGroups}}{{range .}}
{{.Name}}
{{end}}{{end}}{{end}}
`
help.ShowHelp(buffer, dummyTemplate)
Expect(buffer).To(gbytes.Say("login"))
for _, metadata := range commandregistry.Commands.Metadatas() {
if metadata.Hidden {
continue
}
Expect(buffer.Contents()).To(ContainSubstring(metadata.Name))
}
})
It("shows help for all installed plugin's commands", func() {
confighelpers.PluginRepoDir = func() string {
return filepath.Join("..", "..", "fixtures", "config", "help-plugin-test-config")
}