A simple check to ensure that BridgeSupport is installed on Snow Leopard prior to using HotCocoa.
Mac OS X 10.6.8
MacRuby-nightly MacRuby 0.12 (ruby 1.9.2) [universal-darwin10.0, x86_64] - as of 12/17/2011
No installed gems
HotCocoa installed from local build on 12/21/2011 install using:
% git clone https://github.com/HotCocoa/hotcocoa.git % cd hotcocoa % macgem build hotcocoa.gemspec % sudo macgem install hotcocoa
Create and execute a simple hotcocoa app using
% hotcocoa Postie
% cd Postie
% rake
Building app bundle...
Running app...
.../hotcocoa-0.7.0/lib/hotcocoa/core_extensions/kernel.rb:40:in `block':
uninitialized constant Kernel::NSPropertyListXMLFormat_v1_0 (NameError)
from .../hotcocoa-0.7.0/lib/hotcocoa/core_extensions/kernel.rb:3:in `<main>'
from .../hotcocoa-0.7.0/lib/hotcocoa/mappings.rb:1:in `<main>'
from .../hotcocoa-0.7.0/lib/hotcocoa.rb:13:in `<main>'
from .../Postie.app/Contents/Resources/lib/application.rb:2:in `<main>'
from .../Postie.app/Contents/Resources/rb_main.rb:17:in `block'
from .../Postie.app/Contents/Resources/rb_main.rb:15:in `<main>'
%
Use macirb to require ‘hotcocoa’
% macirb
irb(main):001:0> require 'rubygems'
=> true
irb(main):002:0> require 'hotcocoa'
NameError: uninitialized constant Kernel::NSPropertyListXMLFormat_v1_0
.../gems/hotcocoa-0.7.0/lib/hotcocoa/core_extensions/kernel.rb:40:in `block'
.../gems/hotcocoa-0.7.0/lib/hotcocoa/core_extensions/kernel.rb:3:in `<main>'
.../gems/hotcocoa-0.7.0/lib/hotcocoa/mappings.rb:1:in `<main>'
.../gems/hotcocoa-0.7.0/lib/hotcocoa.rb:13:in `<main>'
irb(main):003:0>
Both of these tests can leave the user somewhat confused about the source of the problem.
Add a simple sanity check to the gem that is called from lib/hotcocoa.rb.
begin NSWindow rescue NameError framework 'Cocoa' end begin CGRectZero rescue NameError warn 'BridgeSupport Preview required for this installation.' warn 'Get the latest version from: http://www.macruby.org/files/' exit(Errno::EOPNOTSUPP::Errno) end
framework 'Cocoa' STDOUT.reopen(IO.for_fd(NSFileHandle.fileHandleWithStandardError.fileDescriptor.to_i, 'w')) ## # HotCocoa is a Cocoa mapping library for MacRuby. It simplifies the use # of complex Cocoa classes using DSL techniques. module HotCocoa; end require 'hotcocoa/snow_leopaard_check' # <== NEW LINE require 'hotcocoa/version' . . .
Following the installation of the hotcocoa gem containing these three changes the test results are more informative
Create and execute a simple hotcocoa app using
% hotcocoa Postie % echo $? 0 % cd Postie % rake Building app bundle... Running app... BridgeSupport Preview required for this installation. Get the latest version from: http://www.macruby.org/files/ % echo $? 0
Use macirb to require ‘hotcocoa’
% macirb irb(main):001:0> require 'rubygems' => true irb(main):002:0> require 'hotcocoa' BridgeSupport Preview required for this installation. Get the latest version from: http://www.macruby.org/files/ % % echo $? 102
Another approach is to use the RubyGems method for C extension packaging to trigger a failure at gem install time. This would envolve the addition and population of the hotcocoa/ext tree structure and additions to the hotcocoa.gemspec.
The test environment for this approach is as before with one exception. The hotcocoa gem is not yet installed.
Mac OS X 10.6.8
MacRuby-nightly MacRuby 0.12 (ruby 1.9.2) [universal-darwin10.0, x86_64] - as of 12/17/2011
No installed gems
% diff hotcocoa.gemspec.Old hotcocoa.gemspec.New
14a15
> s.extensions = ['ext/hotcocoa/extconf.rb']
20c21,22
< Dir.glob('template/**/*')
---
> Dir.glob('template/**/*') +
> Dir.glob('ext/**/*.{c,h,rb}')
% mkdir hotcocoa/ext % mkdir hotcocoa/ext/hotcocoa
require 'mkmf' system('test -d /System/Library/BridgeSupport') bridge_support_required = $?.to_i if bridge_support_required $stderr.puts "" $stderr.puts "###################################################################" $stderr.puts "# #" $stderr.puts "# BridgeSupport installation required. #" $stderr.puts "# Get the latest version at: http://www.MacRuby.org/files #" $stderr.puts "# #" $stderr.puts "###################################################################" $stderr.puts "" end create_makefile('hotcocoa/hotcocoa')
#include </System/Library/BridgeSupport/include/_BS_bool.h>
Build and install the hotcocoa gem using:
% git clone git://github.com/bultacorick/hotcocoa.git
% cd hotcocoa
% macgem build hotcocoa.gemspec
% sudo macgem install hotcocoa
Building native extensions. This could take a while...
ERROR: Error installing hotcocoa:
ERROR: Failed to build gem native extension.
/Library/Frameworks/MacRuby.framework/Versions/0.12/usr/bin/macruby extconf.rb
###################################################################
# #
# BridgeSupport installation required. #
# Get the latest version at: http://www.MacRuby.org/files #
# #
###################################################################
creating Makefile
make
/usr/bin/gcc-4.2 -I. ... -c noop_bridge_support_check.c
noop_bridge_support_check.c:1:60: error: /System/Library/BridgeSupport/include/_BS_bool.h
: No such file or directory
make: *** [noop_bridge_support_check.o] Error 1
Gem files will remain installed in /Library/Frameworks/ ... /hotcocoa-0.7.0 for inspection.
Results logged to /Library/Frameworks/ ... /hotcocoa-0.7.0/ext/hotcocoa/gem_make.out
Now add BridgeSupport Preview 3 package from www.MacRuby.org/files/ and rerun the test.
Now you just need to install the already built gem using:
% sudo macgem install hotcocoa Building native extensions. This could take a while... Successfully installed hotcocoa-0.7.0 1 gem installed
At this point the hotcocoa gem is installed and ready for use. This can be easily confirmed by rerunning tests one and two.