Display UsageText on Commands and Subcommands

If it is set, otherwise build the usage.

Fixes #592
This commit is contained in:
Jesse Szwedko 2017-01-29 21:05:21 -08:00
parent f229e3c59c
commit 48db8e2435
2 changed files with 46 additions and 3 deletions

View File

@ -47,7 +47,7 @@ var CommandHelpTemplate = `NAME:
{{.HelpName}} - {{.Usage}}
USAGE:
{{.HelpName}}{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{if .Category}}
{{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}}{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}{{if .Category}}
CATEGORY:
{{.Category}}{{end}}{{if .Description}}
@ -67,7 +67,7 @@ var SubcommandHelpTemplate = `NAME:
{{.HelpName}} - {{if .Description}}{{.Description}}{{else}}{{.Usage}}{{end}}
USAGE:
{{.HelpName}} command{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}
{{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}} command{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}
COMMANDS:{{range .VisibleCategories}}{{if .Name}}
{{.Name}}:{{end}}{{range .VisibleCommands}}

View File

@ -283,7 +283,6 @@ EXAMPLES:
},
},
}
output := &bytes.Buffer{}
app.Writer = output
app.Run([]string{"foo", "help", "frobbly"})
@ -301,6 +300,50 @@ EXAMPLES:
}
}
func TestShowSubcommandHelp_CommandUsageText(t *testing.T) {
app := &App{
Commands: []Command{
{
Name: "frobbly",
UsageText: "this is usage text",
},
},
}
output := &bytes.Buffer{}
app.Writer = output
app.Run([]string{"foo", "frobbly", "--help"})
if !strings.Contains(output.String(), "this is usage text") {
t.Errorf("expected output to include usage text; got: %q", output.String())
}
}
func TestShowSubcommandHelp_SubcommandUsageText(t *testing.T) {
app := &App{
Commands: []Command{
{
Name: "frobbly",
Subcommands: []Command{
{
Name: "bobbly",
UsageText: "this is usage text",
},
},
},
},
}
output := &bytes.Buffer{}
app.Writer = output
app.Run([]string{"foo", "frobbly", "bobbly", "--help"})
if !strings.Contains(output.String(), "this is usage text") {
t.Errorf("expected output to include usage text; got: %q", output.String())
}
}
func TestShowAppHelp_HiddenCommand(t *testing.T) {
app := &App{
Commands: []Command{