librelist archives

Re: [shoes] For the brave.

From:

ashbb

Date:

2012-02-07 @ 12:05

Hi Cecil,

> Is this a 1.9.2 vs .1 thing?
I think so. Because,...

After I commented out and edited several lines in lib/shoes.rb, Policeman
opening window (splash window) was launched correctly and I could click the
'Open an App.' link and select samples/good-clock.rb file. It worked
perfectly!! :-D

The following is the diff I edited. Try it out.

I think that 'open-uri' seems like a problem.

C:\Program Files\Common Files\Shoes\0.r1527\lib>diff shoes.rb shoes_new.rb
9c9
< require 'open-uri'
---
> #require 'open-uri'
13c13
< require 'shoes/cache'
---
> #require 'shoes/cache'
15c15
<   require 'shoes/image'
---
>   #require 'shoes/image'
17c17
< require 'shoes/shybuilder'
---
> #require 'shoes/shybuilder'
143c143
<       require 'shoes/search'
---
>       #require 'shoes/search'
360c360
<     uri = URI(path)
---
>     #uri = URI(path)
370c370,371
<     case uri.path when "/"
---
>     #case uri.path when "/"
>     case path when "/"
399c400,401
<     when URI::HTTP
---
>     #when URI::HTTP
>     when :dummy_for_debug

ashbb

On Tue, 2012-02-07 at 21:05 +0900, ashbb wrote:
> Hi Cecil,
> 
> > Is this a 1.9.2 vs .1 thing?
> I think so. Because,...

Actually the problem is that I don't have the latest Shoes code base
The exception being thrown on require open-uri is 'uninitialized
constant Encoding::UTF_7' and there seems to be fixes for that in later
versions of shoes. 

I'll try to build a more up to date exe.

FWIW if you need to find these kinds of low level problems on
Windows/Shoes without a console, use this for dist/lib/shoes.rb

# shoes.rb
$glbstr = "None"
begin
  require 'open-uri'
rescue Exception => e
  $glbstr = e.message
end

class Shoes
  def self.run path
    [nil]
  end
  def self.args!
    Shoes.app do
        para "#{RUBY_PLATFORM}\n"
        para "#{$glbstr}\n"
        button "Quit" do
          exit
        end
    end
  end
end

I built a newer version of Shoes.exe, 0.r1741. IT FAILS on XP and Wine.

The good news? Both throw up a failure dialogue. In a sick way, it is
progress since I've managed to duplicate ashbb's complaint that
Shoes/1.9.2/Windows doesn't work. That means the cross compile is
successful (in a sick way). My effort is no longer proof of concept.
Cross compiling does work and Wine is a useful test bed because Wine
reports an access to location 0x0 and lots of thread dump info just
like Linux does when Shoes hits a machine level exception by using a
null pointer.

I'll have to recompile ruby and shoes and not strip the debugging info
and hope winedbg reports better info about the offending caller. If it
is a threading issue, then gdb or winegdb can effect the timing (as in
it won't fail reliably). That too would be good to know, if it happens.

I've committed my cross compile rake files to my shoes project at 
https://github.com/ccoupe/shoes/commits/master Very rough and highly
dependent of your environment because that's how cross compiling has to
be (see make/xmingw/env.rb) I have not issued a pull request because
I'm not sure how those files would integrate into the shoes mainline. 

If there are other Linux folk who would like to help debug Shoes/Windows I'll
be more than happy to help set up your cross build environment.

--Cecil