边学边做ROR(安装ruby-debug)
因为之前是用InstantRails-2.0-win来安装的，然后下载ruby1.92，将ruby1.92的安装包覆盖在InstantRails-2.0-win的子目录ruby下，原本这里是ruby1.87版。后来想要debug的时候，需要首先安装DevKit(DevKit 是windows平台下编译和使用本地C/C++扩展包的工具。它就是用来模拟Linux平台下的make, gcc, sh来进行编译)。下载好DevKit后，指定解压路径，路径中不能有空格。如C:\DevKit。
> cd <DEVKIT_INSTALL_DIR> 2 > ruby dk.rb init 3 #生成config.yml，这里会检查将要添加DevKit支持的Ruby列表，只支持通过RubyInstaller安装的Ruby 4 #如果这里列出的Ruby与你的要求不符，可以手动修改 5 > ruby dk.rb review #检查要添加DevKit支持的Ruby列表是否有误，可以略过 6 > ruby dk.rb install 7 [INFO] Updating convenience notice gem override for 'C:/Ruby192' 8 [INFO] Installing 'C:/Ruby192/lib/ruby/site_ruby/devkit.rb'
注：
在生成config.yml后，我将它指定的C:/Ruby192 修改成 D:/InstantRails-2.0-win/ruby 。然后再 ruby dk.rb install。
检查是否安装成功
> gem install rdiscount --platform=ruby 2 Fetching: rdiscount-1.6.8.gem (100%) 3 Temporarily enhancing PATH to include DevKit... 4 Building native extensions. This could take a while... 5 Successfully installed rdiscount-1.6.8 6 1 gem installed 7 Installing ri documentation for rdiscount-1.6.8... 8 Installing RDoc documentation for rdiscount-1.6.8...
如果能安装rdiscount成功说明安装DevKit成功。
然后
gem install ruby-debug19
总是报错，类似于下面(因这是隔天写的，头天的一些报错信息并没有保存，在网上找了个类似的)：
E:/programs/Ruby19/bin/ruby.exe extconf.rb
checking for vm_core.h... no
checking for vm_core.h... no
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=E:/programs/Ruby19/bin/ruby
--with-ruby-dir
--without-ruby-dir
--with-ruby-include
--without-ruby-include=${ruby-dir}/include
--with-ruby-lib
--without-ruby-lib=${ruby-dir}/lib
E:/programs/Ruby19/lib/ruby/1.9.1/net/http.rb:581:in `initialize':
Connection failed. - connect(2)
(Errno::ETIMEDOUT)
from E:/programs/Ruby19/lib/ruby/1.9.1/net/http.rb:581:in
`open'
from E:/programs/Ruby19/lib/ruby/1.9.1/net/http.rb:581:in
`block in connect'
from E:/programs/Ruby19/lib/ruby/1.9.1/timeout.rb:44:in
`timeout'
from E:/programs/Ruby19/lib/ruby/1.9.1/timeout.rb:82:in
`timeout'
from E:/programs/Ruby19/lib/ruby/1.9.1/net/http.rb:581:in
`connect'
from E:/programs/Ruby19/lib/ruby/1.9.1/net/http.rb:574:in
`do_start'
from E:/programs/Ruby19/lib/ruby/1.9.1/net/http.rb:563:in
`start'
from E:/programs/Ruby19/lib/ruby/1.9.1/net/http.rb:1094:in
`request'
from E:/programs/Ruby19/lib/ruby/gems/1.9.1/gems/
ruby_core_source-0.1.4/lib/contrib/uri_ext.rb:239:in `block in read'
from E:/programs/Ruby19/lib/ruby/gems/1.9.1/gems/
ruby_core_source-0.1.4/lib/contrib/uri_ext.rb:286:in `connect'
from E:/programs/Ruby19/lib/ruby/gems/1.9.1/gems/
ruby_core_source-0.1.4/lib/contrib/uri_ext.rb:234:in `read'
from E:/programs/Ruby19/lib/ruby/gems/1.9.1/gems/
ruby_core_source-0.1.4/lib/contrib/uri_ext.rb:128:in `download'
from E:/programs/Ruby19/lib/ruby/gems/1.9.1/gems/
ruby_core_source-0.1.4/lib/ruby_core_source.rb:55:in `block in
create_makefile_
with_core'
from E:/programs/Ruby19/lib/ruby/1.9.1/tempfile.rb:199:in
`open'
from E:/programs/Ruby19/lib/ruby/gems/1.9.1/gems/
ruby_core_source-0.1.4/lib/ruby_core_source.rb:51:in
`create_makefile_with_core
'
from extconf.rb:20:in `<main>'
Requesting http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.1-p378.tar.gz
Gem files will remain installed in E:/programs/Ruby19/lib/ruby/gems/
1.9.1/gems/linecache19-0.5.11 for inspection.
Results logged to E:/programs/Ruby19/lib/ruby/gems/1.9.1/gems/
linecache19-0.5.11/ext/trace_nums/gem_make.out
这个错快把我搞死了，结果回过头发现，原来是没有下载ruby1.92的源码。
ftp://ftp.ruby-lang.org//pub/ruby/1.9/ruby-1.9.2-p0.tar.gz
解压到D:\InstantRails-2.0-win\ruby\src下即可。
设置环境变量PATH：D:\InstantRails-2.0-win\ruby\bin
确认Gemfile中：gem 'ruby-debug19', :require => 'ruby-debug'
最后 gem install ruby-debug19 -- --with-ruby-include=D:/InstantRails-2.0-win/ruby/src/ruby-1.9.2-p0
ok!!!!!
最后 gem install ruby-debug-ide19
ok!!!!!