无法以编程方式运行 Jekyll 构建

Question

我正在尝试以编程方式运行 Jekyll 构建，但在尝试加载 Jekyll 站点插件使用的一些 gem 时，我遇到了构建崩溃的问题。

我的代码如下所示（为便于阅读添加了换行符）：

%x(cd #{@config['input_directory']} &&
  bundle install &&
  bundle exec jekyll build --config #{File.join(@config['input_directory'], "_config.yml")} --source #{@config['input_directory']} --destination #{@config['output_directory']} --trace)

当它运行时，我得到一个如下所示的堆栈跟踪：

/_plugins/jekyll_lunr_js_search.rb:80:in `require': cannot load such file -- nokogiri (LoadError)
    from /_plugins/jekyll_lunr_js_search.rb:80:in `<top (required)>'
    from /ruby-1.9.3-p448/gems/jekyll-1.3.0/lib/jekyll/site.rb:77:in `require'
    from /ruby-1.9.3-p448/gems/jekyll-1.3.0/lib/jekyll/site.rb:77:in `block (2 levels) in setup'
    from /ruby-1.9.3-p448/gems/jekyll-1.3.0/lib/jekyll/site.rb:76:in `each'
    from /ruby-1.9.3-p448/gems/jekyll-1.3.0/lib/jekyll/site.rb:76:in `block in setup'
    from /ruby-1.9.3-p448/gems/jekyll-1.3.0/lib/jekyll/site.rb:75:in `each'
    from /ruby-1.9.3-p448/gems/jekyll-1.3.0/lib/jekyll/site.rb:75:in `setup'
    from /ruby-1.9.3-p448/gems/jekyll-1.3.0/lib/jekyll/site.rb:29:in `initialize'
    from /ruby-1.9.3-p448/gems/jekyll-1.3.0/lib/jekyll/commands/build.rb:5:in `new'
    from /ruby-1.9.3-p448/gems/jekyll-1.3.0/lib/jekyll/commands/build.rb:5:in `process'
    from /ruby-1.9.3-p448/gems/jekyll-1.3.0/bin/jekyll:77:in `block (2 levels) in <top (required)>'
    from /ruby-1.9.3-p448/gems/commander-4.1.5/lib/commander/command.rb:180:in `call'
    from /ruby-1.9.3-p448/gems/commander-4.1.5/lib/commander/command.rb:180:in `call'
    from /ruby-1.9.3-p448/gems/commander-4.1.5/lib/commander/command.rb:155:in `run'
    from /ruby-1.9.3-p448/gems/commander-4.1.5/lib/commander/runner.rb:402:in `run_active_command'
    from /ruby-1.9.3-p448/gems/commander-4.1.5/lib/commander/runner.rb:78:in `run!'
    from /ruby-1.9.3-p448/gems/commander-4.1.5/lib/commander/delegates.rb:11:in `run!'
    from /ruby-1.9.3-p448/gems/commander-4.1.5/lib/commander/import.rb:10:in `block in <top (required)>'

input_directory 的 Gemfile 看起来是这样的，所以我不知道为什么它无法加载 nokogiri。

source 'https://rubygems.org'

gem 'directory_watcher', '= 1.4.1' # http://stackoverflow.com/questions/15591000/jekylls-auto-doesnt-work
gem 'kramdown'
gem 'nokogiri'
gem 'yui-compressor'
gem "jekyll"

group :development do
  gem 'capistrano'
  gem 'rvm-capistrano'
end

欢迎任何指点。我感觉有更好的方法可以通过编程方式构建 Jekyll，这对我来说似乎是最简单的。

Answer 1

运行bundle exec jekyll 以确保它为 Jekyll 正确设置 gem 路径。如果您从使用 Bundler 本身的应用程序调用程序，您可能还需要将执行包装在对 Bundler.with_clean_env 的调用中。

完整的命令应该是这样的：

Bundler.with_clean_env do
  %x(cd #{@config['input_directory']} &&
    bundle install &&
    bundle exec jekyll build --config #{File.join(@config['input_directory'], "_config.yml")} --source #{@config['input_directory']} --destination #{@config['output_directory']} --trace)
end