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Add '--version' flag to Help output (#1707)

This commit is contained in:
Francis Nickels III 2022-09-30 11:26:05 -07:00 committed by GitHub
parent fce8d8aeb0
commit 7039e1fa21
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 89 additions and 1 deletions
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3
command.go
View File

@ -1123,7 +1123,8 @@ Simply type ` + c.Name() + ` help [path to command] for full details.`,
c.Printf("Unknown help topic %#q\n", args)
CheckErr(c.Root().Usage())
} else {
cmd.InitDefaultHelpFlag() // make possible 'help' flag to be shown
cmd.InitDefaultHelpFlag() // make possible 'help' flag to be shown
cmd.InitDefaultVersionFlag() // make possible 'version' flag to be shown
CheckErr(cmd.Help())
}
},

87
command_test.go
View File

@ -2343,3 +2343,90 @@ func TestSetContextPersistentPreRun(t *testing.T) {
t.Error(err)
}
}
const VersionFlag = "--version"
const HelpFlag = "--help"
func TestNoRootRunCommandExecutedWithVersionSet(t *testing.T) {
rootCmd := &Command{Use: "root", Version: "1.0.0", Long: "Long description"}
rootCmd.AddCommand(&Command{Use: "child", Run: emptyRun})
output, err := executeCommand(rootCmd)
if err != nil {
t.Errorf("Unexpected error: %v", err)
}
checkStringContains(t, output, rootCmd.Long)
checkStringContains(t, output, HelpFlag)
checkStringContains(t, output, VersionFlag)
}
func TestNoRootRunCommandExecutedWithoutVersionSet(t *testing.T) {
rootCmd := &Command{Use: "root", Long: "Long description"}
rootCmd.AddCommand(&Command{Use: "child", Run: emptyRun})
output, err := executeCommand(rootCmd)
if err != nil {
t.Errorf("Unexpected error: %v", err)
}
checkStringContains(t, output, rootCmd.Long)
checkStringContains(t, output, HelpFlag)
checkStringOmits(t, output, VersionFlag)
}
func TestHelpCommandExecutedWithVersionSet(t *testing.T) {
rootCmd := &Command{Use: "root", Version: "1.0.0", Long: "Long description", Run: emptyRun}
rootCmd.AddCommand(&Command{Use: "child", Run: emptyRun})
output, err := executeCommand(rootCmd, "help")
if err != nil {
t.Errorf("Unexpected error: %v", err)
}
checkStringContains(t, output, rootCmd.Long)
checkStringContains(t, output, HelpFlag)
checkStringContains(t, output, VersionFlag)
}
func TestHelpCommandExecutedWithoutVersionSet(t *testing.T) {
rootCmd := &Command{Use: "root", Long: "Long description", Run: emptyRun}
rootCmd.AddCommand(&Command{Use: "child", Run: emptyRun})
output, err := executeCommand(rootCmd, "help")
if err != nil {
t.Errorf("Unexpected error: %v", err)
}
checkStringContains(t, output, rootCmd.Long)
checkStringContains(t, output, HelpFlag)
checkStringOmits(t, output, VersionFlag)
}
func TestHelpflagCommandExecutedWithVersionSet(t *testing.T) {
rootCmd := &Command{Use: "root", Version: "1.0.0", Long: "Long description", Run: emptyRun}
rootCmd.AddCommand(&Command{Use: "child", Run: emptyRun})
output, err := executeCommand(rootCmd, HelpFlag)
if err != nil {
t.Errorf("Unexpected error: %v", err)
}
checkStringContains(t, output, rootCmd.Long)
checkStringContains(t, output, HelpFlag)
checkStringContains(t, output, VersionFlag)
}
func TestHelpflagCommandExecutedWithoutVersionSet(t *testing.T) {
rootCmd := &Command{Use: "root", Long: "Long description", Run: emptyRun}
rootCmd.AddCommand(&Command{Use: "child", Run: emptyRun})
output, err := executeCommand(rootCmd, HelpFlag)
if err != nil {
t.Errorf("Unexpected error: %v", err)
}
checkStringContains(t, output, rootCmd.Long)
checkStringContains(t, output, HelpFlag)
checkStringOmits(t, output, VersionFlag)
}