fzf-preview.vim

fzf ❤️ preview

Preview Everywhere

This fork checks if the buffer is a scratch buffer and save it's contents so a preview can be shown. This allows preview, for example, of generated fles not saved yet or manpages.

The preview functionality of fzf in vim is great. However, only limited commands of fzf.vim provide a preview window that you can press ctrl-/ key to toggle. If you want to enhance your fzf.vim by enabling the preview window everywhere, try this plugin! All of the commands support a ! as one of their arguments to start a full-screen window.

NOTE This plugin depends on fzf and fzf.vim so you need to install them first. You may also need to put the line to load this plugin after the line of installing fzf.vim in your plugin manager's configuration file since the commands from fzf.vim may override the commands provided by this plugin if you have let g:fzf_command_prefix = 'FZF' in your .vimrc.

NOTE To enable correct preview with FZFTags, you may need to add --excmd=number to your ctags' command-line arguments to help locate the line position of the tag. You also need to make sure the tags file is in the current vim since the file paths in the tags file might be relative paths, or you need to add --tag-relative=no to the arguments.

NOTE All the commands may require a Unix-like environment, or a bash emulator on Windows (WSL or something else, and is in your $PATH variable).

Dependencies

fzf 0.22.0 or above fzf.vim

Usage

Run a command, then press ctrl-/(the default key binding) to toggle preview.

Commands

• FZF/FZFFiles: Search files with previewing file content.
• FZFLocate: Use your system's file database to search files with previewing file content.
• FZFGGrep: Use git grep to search your file content and preview the context of lines.
• FZFGrep: Use grep to search your file content and preview the context of lines.
• FZFAg: Use silversearcher-ag to search your file content and preview the context of lines.
• FZFRg: Use ripgrep to search your file content and preview the context of lines.
• FZFHistory: Browse edited files in vim's history list with previewing file content.
• FZFBLines: Search all lines of the current buffer and previewing their context.
• FZFTags: Search all the tags in vim's tags and previewing their context.
• FZFBTags: Search all the tags of the current buffer and previewing their context.
• FZFMarks: Search all the positions of vim's marks and preview their context. (Unix only, or won't be defined.)
• FZFWindows: Search all the vim's windows and preview their content. (Unix only, or won't be defined.)
• FZFQuickFix/FZFLocList': Search VIM's QuickFix/LocList entries with preview.

Differences between Current fzf.vim's Builtin Commands with preview

• All comands support pressing ? to toggle preview.
• The original Ag and Rg commands will also do fuzzy match on file names, which is annoying sometimes. Here they would only match lines.
• FZFGGrep, FZFGrep: Use git grep and grep to search file content, which the original fzf.vim doesn't provide.
• FZFBLines, FZFTags, FZFMarks and FZFWindows: The original fzf.vim does not support preview with those.
• FZFQuickFix/FZFLocList: The original fzf.vim does not provide these commands.

Configuration

You can use the native fzf.vim's preview window configuration variable g:fzf_preview_window to customize the layout of the preview window, for example, let g:fzf_preview_window = ['up:60%', 'ctrl-/'] to put the preview window at the top 60% of the fzf terminal buffer and set ctrl-/ to toggle. If you don't want the preview window to be opened by default, you can set let g:fzf_preview_window = ['right:hidden', 'ctrl-/']. The three valid preview window layouts are up, down, left and right.

Screenshot