Great code - how 'bout wrapping it up as an extension?
On Mar 10, 2:42 pm, andynu <[email protected]> wrote:
> I took a different approach. Since you have access to the ENV object I
> added a few helpers
>
> def menu(variable,options)
> Capistrano::CLI.ui.choose do |menu|
> options.each {|c| menu.choice(c)}
> menu.header = "( ? ) Select #{variable.to_s}"
> end
> end
>
> def env_or_menu(variable,options)
> value = if ENV[variable.to_s].nil?
> Capistrano::CLI.ui.choose do |menu|
> options.each {|c| menu.choice(c)}
> menu.header = "( ? ) Select #{variable.to_s}"
> end
> else
> if ENV[variable.to_s] == /^:/
> ENV[variable.to_s].to_sym
> else
> ENV[variable.to_s].to_s
> end
> end
> yield(value) if block_given?
> return value
> end
>
> def env_or_ask(variable,question)
> value = if ENV[variable.to_s].nil?
> Capistrano::CLI.ui.ask(question)
> else
> if ENV[variable.to_s] == /^:/
> ENV[variable.to_s].to_sym
> else
> ENV[variable.to_s].to_s
> end
> end
> yield(value) if block_given?
> return value
> end
>
> def env_or_set(variable,value)
> value = if ENV[variable.to_s].nil?
> value
> else
> if ENV[variable.to_s] == /^:/
> ENV[variable.to_s].to_sym
> else
> ENV[variable.to_s].to_s
> end
> end
> yield(value) if block_given?
> return value
> end
>
> def set_ask_menu(variable,options)
> set(variable) do
> env_or_menu(variable,options) do |value|
> yield(value) if block_given?
> end
> end
> end
>
> def set_ask(variable,question)
> set(variable) do
> env_or_ask(variable,question) do |value|
> yield(value) if block_given?
> end
> end
> end
>
> With those you can do things like
>
> env_or_set(:some_variable, "some_default_value")
>
> if you provide it it'll use it, otherwise it'll use the default.
> e.g.
>
> cap task some_variable=custom_value
>
> or
>
> env_or_menu(:some_variable, ["option1","option2","option3"])
> will take the environment or provide a menu.
>
> On Mar 8, 6:46 pm, "S. Robert James" <[email protected]> wrote:
>
>
>
> > Is there a standard Capistrano idiom for passing in, and parsing, user
> > defined parameters from the command line? I know vars can be set using
> > -S. But I'd like more: supporting boolean switches, or switches with
> > a default val. If I was writing my own script, I'd use OptionParser or
> > the like - what's the preferred Capistrano way to do this?
>
> > Along similar lines, is there a standard idiom for a task to take a
> > parameter, or return a result? I could hack this with a global
> > variable, but I'd like to find a preferred way.
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