Yes, it automatically generates help tags for all of your plugins whenever you run PlugInstall or PlugUpdate. But you can regenerate help tags only with plug#helptags() function.

"Premature optimization is the root of all evil."

You most likely don't need them at all. A properly implemented Vim plugin should already load lazily without any help from the plugin manager (:help autoload). There are very few cases where those options actually make much sense. On-demand loading should only be used as the last resort. It is basically a hacky workaround and is not always guaranteed to work.

Before applying the options, make sure that you're tackling the right problem by breaking down the startup time of Vim using --startuptime. See if there are plugins that take more than a few milliseconds to load.

vim --startuptime /tmp/log

The symptom is commonly caused by the two configuration mistakes:

1. Not putting call plug#end() after Plug statements
2. Putting the code in .gvimrc instead of .vimrc (See #540)

There is a separate PlugUpgrade command and there are valid reasons behind the decision. A detailed discussion can be found here.

So if you want to make sure that you have the latest version of vim-plug after PlugUpdate, just run PlugUpgrade after PlugUpdate.

PlugUpdate | PlugUpgrade

You can save some keystrokes by defining a custom command like follows:

command! PU PlugUpdate | PlugUpgrade

If you really, really want to use PlugUpdate only, you can set up vim-plug like follows:

# Manually clone vim-plug and symlink plug.vim to ~/.vim/autoload
mkdir -p ~/.vim/{autoload,plugged}
git clone https://github.com/junegunn/vim-plug.git ~/.vim/plugged/vim-plug
ln -s ~/.vim/plugged/vim-plug/plug.vim ~/.vim/autoload

and in your .vimrc:

call plug#begin('~/.vim/plugged')
Plug 'junegunn/vim-plug'
" ...
call plug#end()
" The caveat is that you should *never* use PlugUpgrade
delc PlugUpgrade

Unlike PlugUpgrade, you'll have to restart Vim after vim-plug is updated.

vim-plug no longer handles dependencies between plugins and it's up to the user to manually specify Plug commands for dependent plugins.

Plug 'SirVer/ultisnips'
Plug 'honza/vim-snippets'

Some users prefer to use | separators or arbitrary indentation to express plugin dependencies in their configuration files.

" Vim script allows you to write multiple statements in a row using `|` separators
" But it's just a stylistic convention. If dependent plugins are written in a single line,
" it's easier to delete or comment out the line when you no longer need them.
Plug 'SirVer/ultisnips' | Plug 'honza/vim-snippets'
Plug 'junegunn/fzf', { 'do': './install --all' } | Plug 'junegunn/fzf.vim'

" Using manual indentation to express dependency
Plug 'kana/vim-textobj-user'
  Plug 'nelstrom/vim-textobj-rubyblock'
  Plug 'whatyouhide/vim-textobj-xmlattr'
  Plug 'reedes/vim-textobj-sentence'

• Ordering of plugins only matters when overriding an earlier plugin's commands or mappings, so putting the dependency next to the plugin that depends on it or next to other plugins' dependencies are both okay.
• In the rare case where plugins do overwrite commands or mappings, vim-plug requires you to manually reorder your plugins.

When vim-plug clones a repository, it injects git::@ into the URL (e.g. https://git::@github.com/junegunn/seoul256.vim.git) which can be an issue when you want to push some changes back to the remote. So why?

It's a little hack to avoid username/password prompt from git when the repository doesn't exist. Such thing can happen when there's a typo in the argument, or when the repository is removed from GitHub. It looks kind of silly, but doing so is the only way I know that works on various versions of git. However, Git 2.3.0 introduced $GIT_TERMINAL_PROMPT which can be used to suppress user prompt, and vim-plug takes advantage of it and removes git::@ when Git 2.3.0 or above is found.

Also, there are two ways to override the default URL pattern:

1. Using full git url: Plug 'https://github.com/junegunn/seoul256.vim.git'
2. Or define g:plug_url_format for the plugins that you need to work on.

let g:plug_url_format = '[email protected]:%s.git'
Plug 'junegunn/vim-easy-align'
Plug 'junegunn/seoul256.vim'

unlet g:plug_url_format
Plug 'tpope/vim-surround'
Plug 'tpope/vim-repeat'

See #168, #161, #133, #109, #56 for more details.

Yes, color schemes are not any different from other plugins. A common mistake is to put :colorscheme NAME before call plug#end(). Plugins are not activated before plug#end(), so make sure to load your color scheme after it.

Parallel installer is only enabled when at least one of the following conditions is met:

1. Vim with Ruby support: has('ruby') / Ruby 1.8.7 or above
2. Vim with Python support: has('python') or has('python3') / Python 2.6 or above
3. Neovim with job control: exists('*jobwait')

For more help, see the requirements.

If your Vim crashes with the above message, first check if its Ruby interface is working correctly with the following command:

:ruby puts RUBY_VERSION

If Vim crashes even with this command, it is likely that Ruby interface is broken, and you have to rebuild Vim with a working version of Ruby. (brew reinstall vim or ./configure && make ...)

If you're on OS X, one possibility is that you had installed Vim with Homebrew while using a Ruby installed with RVM or rbenv and later removed that version of Ruby. Thus, it is safer to build Vim with system ruby.

rvm use system
brew reinstall vim

If you're on Windows using cygwin and the above ruby command fails with: cannot load such file -- rubygems.rb (LoadError). It means cygwin is missing the rubygems package. Install it using the setup.exe that came with cygwin.

Please let me know if you can't resolve the problem. In the meantime, you can put let g:plug_threads = 1 in your vimrc, to disable the parallel installers.

Due to a bug that slipped into this release, the registry entries and python.dll do not align. A simple work around is explained here.

YouCompleteMe (YCM) is a huge project and you might run into timeouts when trying to install/update it with vim-plug.

The parallel installer of vim-plug (ruby or python) times out only when the stdout of the process is not updated for the designated seconds (default 60). Which means even if the whole process takes much longer than 60 seconds to complete, if the process is constantly printing the progress to stdout (10%, 11%, ...) it should never time out. Nevertheless, we still experience problems when installing YCM :(

Workarounds are as follows:

• Increase g:plug_timeout
• Install YCM exclusively with :PlugInstall YouCompleteMe
  • In this case single-threaded vimscript installer, which never times out, is used
• Asynchronous Neovim installer does not implement timeout.

YouCompleteMe is an exceptionally large plugin that can take a very long time to download and compile. For this reason, one may want to download and update YouCompleteMe manually only when it is needed. Install it on any directory you prefer and pass the name of the directory to the Plug command.

" Assuming that you have installed (or will install) YCM
" in ~/.vim/plugged/YouCompleteMe
Plug '~/.vim/plugged/YouCompleteMe'

vim-plug will load the plugin, but it will not try to install or update YouCompleteMe.

Apparently the git option --depth 1 requires SSL on the remote Git server. It is now default, to reduce download size. To get around this, you can:

Disable Shallow Cloning

Add let g:plug_shallow = 0 to your .vimrc.

Mirror the repository on a Git server with https (i.e. Github or BitBucket).

Then just add it normally with the new URI.

Mark the plugin as local/unmanaged

a) Clone it locally to ~/.vim/plugged/plugin_name

b) Add to the vimrc with Plug '~/.vim/plugged/plugin_name'.

The leading tilda tells vim-plug not to do anything other than rtp for plugin_name.

There are two possible causes we've encountered.

1. Bad escaping. On Windows, if you use '<', '>' or '|' in the file path, vim-plug is known to fail. Any other chars should be fine. vim-plug supports the user's &shell since https://github.com/junegunn/vim-plug/commit/8a44109329757e29c4956162e3353df367ecdb71 was merged. It uses custom shellescape to support the following shells: cmd.exe, sh, powershell. Please report if this happens.

2. System changes due to AutoRun commands executed on cmd.exe startup. See docs.

To see if your system suffers this second problem, run these reg queries. If either one returns a path to a bat file, you should carefully read it. You may have to edit/disable it to get vim-plug working.

REG QUERY "HKCU\Software\Microsoft\Command Processor" /v AutoRun
REG QUERY "HKLM\Software\Microsoft\Command Processor" /v AutoRun

Windows Git must be upgraded to support mixed paths (ie. C:/Users/foo/.vim/plugged). Modify your vimrc to use g:plug_home instead of passing a filepath to plug#begin so that vim-plug does not convert it back to Unix paths (ie. /home/foo/.vim/plugged) and break when passing filepaths to Windows Git. Use cygpath -m command to convert a filepath to mixed paths. Plugins that define dir to install the plugin in some directory must use mixed paths as well.

function! s:fix_plug_path(path)
  if has('win32unix')
  \ && executable('cygpath')
  \ && executable('git')
  \ && split(system('git --version'))[2] =~# 'windows'
    return substitute(system('cygpath -m ' . a:path), '\r*\n\+$', '', '')
  endif
  return a:path
endfunction
let g:plug_home = s:fix_plug_path($HOME . '/.vim/plugged')
call plug#begin()
call plug#('junegunn/fzf', { 'dir': s:fix_plug_path($HOME . '/.fzf'), 'do': './install --all' })

Details at https://github.com/junegunn/vim-plug/issues/896

Options:

• update your terminal settings to use a font that supports unicode characters.
• Use powershell as your shell
• DO NOT SET/UNSET chcp (see issues listed in https://github.com/junegunn/vim-plug/issues?utf8=%E2%9C%93&q=is%3Aissue+chcp+ for details)
  • Reference: https://dev.to/mattn/please-stop-hack-chcp-65001-27db

If vim-plug doesn't work correctly on fish shell, you might need to add set shell=/bin/sh to your .vimrc.

Refer to the following links for the details:

• http://badsimplicity.com/vim-fish-e484-cant-open-file-tmpvrdnvqe0-error/
• https://github.com/junegunn/vim-plug/issues/12