Stop processing rest of file?

[thomthom]

Regardless of load or require being used - I try to find a method that will stop ruby from processing the rest of the file - without killing SketchUp itself.

[Dan Rathbun]

In my prototype I also have a step that is only a comment at this point:

a) Display a webdialog here so the user can download the file(s).

b) call retry if download successful

[Dan Rathbun]

So far I am trying my best to NOT touch or override either require or load themselves.

[tbd]

have a separate loader.rb that checks if LIB exists and has functions required.
if yes, require/load rest of your code, if not ...

[Dan Rathbun]

Having to have yet ANOTHER file for each and every library or plugin package, is not what I am aiming at...

... besides that does not solve the idiot situation, trying to force a plugin to load, using load(), when require does not work.
I'm not sure there is a solution to the idiot syndrome anyway. I (personally,) would not give any support, or waste any time responding, to an idiot who does not let the plugin load the way it's supposed to.

[Dan Rathbun]

ThomThom, for now do something like:

module TT_FancyUtil

  # move require dependancy calls inside namespace
  require('TT/TT_Lib2') rescue raise(LoadError,'TT_Lib2')
  require('TT/TT_GUI') rescue raise(LoadError,'TT_GUI')

  # the rest of the module's code

# way down the bottom of the namespace block;
rescue LoadError => e

  case e.message
  when 'TT_Lib2'
    puts("LoadError; TT_Lib2 file is not present. .. blah blah blah...")
  when 'TT_GUI'
    puts("LoadError; TT_GUI file is not present. .. blah blah blah...")
  else
    puts("Error; #<#{e.class.name}; #{e.message}>")
    puts e.backtrace
  end

end # module

[thomthom]

@unknownuser said:

have a separate loader.rb that checks if LIB exists and has functions required.
if yes, require/load rest of your code, if not ...

Really don't want to use another file. Many of my plugins are self contained in a single file - apart from that they require TT_Lib. And I don't want to split it up just for this check.

[thomthom]

Found a way:

<span class="syntaxdefault">require </span><span class="syntaxstring">'sketchup.rb'<br /></span><span class="syntaxdefault">begin<br />  require </span><span class="syntaxstring">'TT_Lib2/core.rb'<br /></span><span class="syntaxdefault">rescue LoadError </span><span class="syntaxkeyword">=></span><span class="syntaxdefault"> e<br />  </span><span class="syntaxcomment"># meh!<br /></span><span class="syntaxdefault">end<br /><br />module MagicPlugin<br />  </span><span class="syntaxcomment"># Voodoo<br /></span><span class="syntaxdefault">end if defined</span><span class="syntaxkeyword">?(</span><span class="syntaxdefault"> TT</span><span class="syntaxkeyword">;;</span><span class="syntaxdefault">Lib </span><span class="syntaxkeyword">)<br /></span><span class="syntaxdefault"> </span>

[Dan Rathbun]

interesting!

Hmm ... I see rescue modifiers do not work with require(), for some reason ?

You could also do (if you did not want any module defined) ...

require 'sketchup.rb'
begin
  require 'TT_Lib2/core.rb'
rescue LoadError => e
  # meh!
else
  module MagicPlugin
    # Voodoo
  end
end# begin
 

[thomthom]

@dan rathbun said:

Hmm ... I see rescue modifiers do not work with require(), for some reason ?

What you mean? What modifiers?

[tbd]

statement modifiers = conditional statements onto the end of a normal statement

` name = first_name + last_name rescue "John Doe"

John Doe # if first_name and last_name are not defined`

[Dan Rathbun]

@thomthom said:

@dan rathbun said:

Hmm ... I see rescue modifiers do not work with require(), for some reason ?

What you mean? What modifiers?

The conditional keywords if and unless can be used in block position:
[ if| unless] ( expression)
statements
end

or modifier position:
statement [ if| unless] ( expression)

**rescue** can also be used in modifier poistion, but ... my attempt at this:
require('booboo.rb') rescue nil
... does NOT trap the LoadError (because LoadError < ScriptError < Exception, and rescue only traps RuntimeError and subclasses by default.)

For a one-liner, we must use semi-colons:
begin require('booboo.rb'); rescue Exception; nil; end