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After handler brought up to speed.

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As discussed in issue #151, I modified the implementation to be simpler.
I checked how to propagate err, being done with a scope trick. From our
deferred function we cannot return a new value, so we override the "default"
return value (err), declared on functions' declarations.

Check this StackOverflow for more info: http://stackoverflow.com/a/19934989
This commit is contained in:
Dario Castañé 2015-01-10 00:51:06 +01:00
parent 4ab12cd639
commit dca177c384
1 changed files with 2 additions and 4 deletions
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6
app.go
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@ -77,8 +77,7 @@ func NewApp() *App {
} }
// Entry point to the cli app. Parses the arguments slice and routes to the proper flag/args combination // Entry point to the cli app. Parses the arguments slice and routes to the proper flag/args combination
func (a *App) Run(arguments []string) error { func (a *App) Run(arguments []string) (err error) {
var err error
if HelpPrinter == nil { if HelpPrinter == nil {
defer func() { defer func() {
HelpPrinter = nil HelpPrinter = nil
@ -184,8 +183,7 @@ func (a *App) RunAndExitOnError() {
} }
// Invokes the subcommand given the context, parses ctx.Args() to generate command-specific flags // Invokes the subcommand given the context, parses ctx.Args() to generate command-specific flags
func (a *App) RunAsSubcommand(ctx *Context) error { func (a *App) RunAsSubcommand(ctx *Context) (err error) {
var err error
// append help to commands // append help to commands
if len(a.Commands) > 0 { if len(a.Commands) > 0 {
if a.Command(helpCommand.Name) == nil && !a.HideHelp { if a.Command(helpCommand.Name) == nil && !a.HideHelp {