Vim打开Ruby文件时间非常长

Question

我注意到Vim打开Ruby和ERB（嵌入式Ruby）文件需要很长时间。我对我的启动时间进行了分析，以下是有趣的行（如果您想查看完整的分析，请查看底部）：

32980.181  32011.917  32011.917: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/ftplugin/ruby.vim
32980.516  32035.414  022.871: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/ftplugin/eruby.vim

你可以看到，加载Ruby和ERuby的ftdetect需要很长时间（显然以"msec"为单位）。与此相比，加载HTML的ftdetect以及加载我的.vimrc所需的时间如何：

952.223  000.626  000.626: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/ftplugin/html.vim
738.536  612.248  534.785: sourcing $HOME/.vimrc

这是正常现象吗？我能做些什么来解决吗？打开一个文件需要等待大约33秒，这真的很令人恼火。

times in msec
 clock   self+sourced   self:  sourced script
 clock   elapsed:              other lines

000.022  000.022: --- VIM STARTING ---
012.064  012.042: Allocated generic buffers
012.910  000.846: locale set
013.186  000.276: clipboard setup
013.203  000.017: window checked
033.918  020.715: inits 1
034.697  000.779: parsing arguments
034.716  000.019: expanding arguments
077.784  043.068: shell init
079.520  001.736: Termcap init
079.562  000.042: inits 2
080.186  000.624: init highlight
179.889  001.991  001.991: sourcing /Users/davidtuite/.vim/autoload/pathogen.vim
564.261  000.178  000.178: sourcing /Users/davidtuite/.vim/filetype.vim
632.475  000.389  000.389: sourcing /Users/davidtuite/.vim/bundle/jst/ftdetect/jst.vim
633.141  055.478  055.089: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/filetype.vim
660.587  000.236  000.236: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/ftplugin.vim
661.081  000.247  000.247: sourcing /Users/davidtuite/.vim/filetype.vim
661.408  000.041  000.041: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/filetype.vim
673.005  000.208  000.208: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/indent.vim
699.170  000.901  000.901: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/syncolor.vim
699.550  007.236  006.335: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/synload.vim
699.669  008.305  001.069: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/syntax.vim
700.763  000.561  000.561: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/syncolor.vim
715.774  000.497  000.497: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/syncolor.vim
716.658  000.452  000.452: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/syncolor.vim
722.467  010.218  009.269: sourcing /Users/davidtuite/.vim/bundle/solarized/colors/solarized.vim
738.536  612.248  534.785: sourcing $HOME/.vimrc
738.593  046.159: sourcing vimrc file(s)
784.522  000.859  000.859: sourcing /Users/davidtuite/.vim/bundle/ctrlp/autoload/ctrlp/mrufiles.vim
785.378  045.922  045.063: sourcing /Users/davidtuite/.vim/bundle/ctrlp/plugin/ctrlp.vim
816.261  000.454  000.454: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/getscriptPlugin.vim
818.593  000.792  000.792: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/gzip.vim
820.050  000.921  000.921: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/matchparen.vim
830.405  002.463  002.463: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/netrwPlugin.vim
843.038  000.145  000.145: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/rrhelper.vim
850.425  000.293  000.293: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/spellfile.vim
851.617  000.671  000.671: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/tarPlugin.vim
852.558  000.509  000.509: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/tohtml.vim
853.470  000.599  000.599: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/vimballPlugin.vim
854.255  000.463  000.463: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/zipPlugin.vim
854.362  062.537: loading plugins
854.375  000.013: inits 3
875.931  021.556: reading viminfo
875.995  000.064: setting raw mode
876.010  000.015: start termcap
876.062  000.052: clearing screen
952.223  000.626  000.626: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/ftplugin/html.vim
32980.181  32011.917  32011.917: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/ftplugin/ruby.vim
32980.516  32035.414  022.871: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/ftplugin/eruby.vim
33007.912  000.688  000.688: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/indent/ruby.vim
33024.997  001.804  001.804: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/indent/html.vim
33025.207  025.843  023.351: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/indent/eruby.vim
33067.541  000.929  000.929: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/javascript.vim
33085.205  004.486  004.486: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/vb.vim
33088.445  002.575  002.575: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/css.vim
33089.314  039.262  031.272: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/html.vim
33106.920  003.463  003.463: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/ruby.vim
33107.112  064.122  021.397: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/eruby.vim
33107.888  107.447: opening buffers
33108.114  000.226: BufEnter autocommands
33108.117  000.003: editing files in windows
33108.319  000.202: VimEnter autocommands
33108.320  000.001: before starting main loop
33127.031  018.711: first screen update
33127.033  000.002: --- VIM STARTED ---

- David Tuite

---

你至少打开那些文件看看它们的作用了吗？ - romainl

据我所知，这只是针对Ruby文件的语法和光标移动规则（我的VimScript非常薄弱）。它们是标准Vim安装的一部分，所以我想我不必发布它们的内容。 - David Tuite

这些文件会进行一些探索来理解它们的Ruby环境。可能是这些步骤花费了太长时间。另外，尝试安装更近期的版本：你的版本是7.3.266，而最新的补丁是700+。 - romainl

Answer 1

延迟是由ftplugin/ruby.vim查询Ruby加载路径引起的。就在几天前，我通过删除对Ruby Gems的查询，显著提高了这一速度。我的Mac目前报告大约需要125毫秒，这是一个显著的改进。因此，您可以尝试更新到最新版本。

如果这仍然不够快，您可以通过在vimrc中设置g:ruby_path来完全禁用加载路径查询。

尝试将此添加到.vimrc文件（位于您的主文件夹中）：

if !empty($MY_RUBY_HOME)
 let g:ruby_path = join(split(glob($MY_RUBY_HOME.'/lib/ruby/*.*')."\n".glob($MY_RUBY_HOME.'/lib/rubysite_ruby/*'),"\n"),',')
endif

- user1798227

---

嗨，谢谢你的回答。你能提供一些关于如何停止查询 Ruby Gems 的更多信息吗？ - David Tuite

我在我的 .vimrc 文件中添加了这些行。目前看起来速度有了很大的提升，但还为时过早，因为问题只发生在某些冷启动时。我会再做一些实验。 - David Tuite

Answer 2

如果您只想将vim的ruby路径设置为明确的内容，请在您的.vimrc文件中的任何位置添加以下内容：

let g:ruby_path = "/Users/<username>/rbenv/shims/ruby"

如果您使用的是rbenv，则可以将<username>替换为您实际的Mac用户名。

如果您的ruby路径是其他内容，请用ruby可执行文件的完整路径替换引号内的所有内容。

- staxim