Add zsh/oh my zsh/w10k

zsh/.oh-my-zsh/plugins/rake-fast/README.md

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+# rake-fast
+
+Fast rake autocompletion plugin.
+
+This plugin caches the output for later usage and significantly speeds it up.
+It generates a `.rake_tasks` cache file in parallel to the Rakefile. It also
+checks the file modification time to see if it needs to regenerate the cache
+file.
+
+This is entirely based on [this pull request by Ullrich Schäfer](https://github.com/robb/.dotfiles/pull/10/),
+which is inspired by [this Ruby on Rails trick from 2006](https://weblog.rubyonrails.org/2006/3/9/fast-rake-task-completion-for-zsh/).
+
+Think about that. 2006.
+
+----------
+
+Since August of 2016, it also checks if it's in a Rails project and looks at
+rake files inside `lib/tasks` and their modification time to know if the
+cache file needs to be regenerated.
+
+## Installation
+
+Just add the plugin to your `.zshrc`:
+
+```zsh
+plugins=(... rake-fast)
+```
+
+You might consider adding `.rake_tasks` to your [global .gitignore](https://help.github.com/articles/ignoring-files#global-gitignore)
+
+## Usage
+
+Type `rake`, then press tab.
+
+If you want to force the regeneration of the `.rake_tasks` file, run `rake_refresh`.

zsh/.oh-my-zsh/plugins/rake-fast/rake-fast.plugin.zsh

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+_rake_does_task_list_need_generating () {
+  [[ ! -f .rake_tasks ]] || [[ Rakefile -nt .rake_tasks ]] || { _is_rails_app && _tasks_changed }
+}
+
+_is_rails_app () {
+  [[ -e "bin/rails" ]] || [[ -e "script/rails" ]]
+}
+
+_tasks_changed () {
+  local -a files
+  files=(lib/tasks lib/tasks/**/*(N))
+
+  for file in $files; do
+    if [[ "$file" -nt .rake_tasks ]]; then
+      return 0
+    fi
+  done
+
+  return 1
+}
+
+_rake_generate () {
+  rake --silent --tasks | cut -d " " -f 2 | sed 's/\[.*\]//g' > .rake_tasks
+}
+
+_rake () {
+  if [[ -f Rakefile ]]; then
+    if _rake_does_task_list_need_generating; then
+      echo "\nGenerating .rake_tasks..." >&2
+      _rake_generate
+    fi
+    compadd $(cat .rake_tasks)
+  fi
+}
+compdef _rake rake
+
+rake_refresh () {
+  [[ -f .rake_tasks ]] && rm -f .rake_tasks
+
+  echo "Generating .rake_tasks..." >&2
+  _rake_generate
+  cat .rake_tasks
+}