关于在ubuntu服务器上进行capistrano部署时nokogiri的错误

Question

在相继bundle:install之后deploy:finalize_update,我收到关于nokogiri的错误.它暗示,

 ** [out :: *******] Make sure that `gem install nokogiri -v '1.6.0'` succeeds before bundling.

所以我试着在服务器上自己安装nokogiri.但它给出了以下错误,

Building native extensions.  This could take a while...
ERROR:  Error installing nokogiri:
    ERROR: Failed to build gem native extension.

    /home/deployer/.rvm/rubies/ruby-2.0.0-p0/bin/ruby extconf.rb
Extracting libxml2-2.8.0.tar.gz into tmp/x86_64-linux-gnu/ports/libxml2/2.8.0... OK
Running 'configure' for libxml2 2.8.0... OK
Running 'compile' for libxml2 2.8.0... ERROR, review 'tmp/x86_64-linux-gnu/ports/libxml2/2.8.0/compile.log' to see what happened.
*** 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=/home/deployer/.rvm/rubies/ruby-2.0.0-p0/bin/ruby
/home/deployer/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/gems/2.0.0/gems/mini_portile-0.5.0/lib/mini_portile.rb:235:in `block in execute': Failed to complete compile task (RuntimeError)
    from /home/deployer/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/gems/2.0.0/gems/mini_portile-0.5.0/lib/mini_portile.rb:227:in `chdir'
    from /home/deployer/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/gems/2.0.0/gems/mini_portile-0.5.0/lib/mini_portile.rb:227:in `execute'
    from /home/deployer/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/gems/2.0.0/gems/mini_portile-0.5.0/lib/mini_portile.rb:61:in `compile'
    from /home/deployer/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/gems/2.0.0/gems/mini_portile-0.5.0/lib/mini_portile.rb:101:in `cook'
    from extconf.rb:101:in `block in <main>'
    from extconf.rb:119:in `call'
    from extconf.rb:119:in `block in <main>'
    from extconf.rb:109:in `tap'
    from extconf.rb:109:in `<main>'


Gem files will remain installed in /home/deployer/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0 for inspection.
Results logged to /home/deployer/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0/ext/nokogiri/gem_make.out

它刚刚开始.还安装了libxml2.

任何的想法？

谢谢.

编辑:我不需要在我的gemfile中明确nokogiri.

Answer 1

我与Nokogiri 1.6.0面临同样的问题.正如您从日志中看到的那样,这个问题是由于libxml2的编译失败导致的,它与libxslt一起现在嵌入在gem中,并在安装时进行编译.

要找出编译确实出错的地方,请查看建议的文件compile.log,在您的情况下,您可以在以下位置找到:

/home/deployer/.rvm/gems/ruby-2.0.0-p0/gems/nokogiri-1.6.0/ext/nokogiri/tmp/x86_64-linux-gnu/ports/libxml2/2.8.0/compile.log

作为一种解决方法(假设您安装了libxml2-dev和libxslt-dev),您可以:

NOKOGIRI_USE_SYSTEM_LIBRARIES=1 bundle install

我希望它有所帮助.

Answer 2

如果您使用的是Capistrano 3.x,则可以在deploy.rb文件中执行以下操作(或特定于环境的文件deploy/production.rb)

set :bundle_env_variables, { 'NOKOGIRI_USE_SYSTEM_LIBRARIES' => 1 }

这样就可以避免覆盖bundle install任务.这将env在运行时设置给定的变量bundle install.