fzf/README.md

441 lines
12 KiB
Markdown
Raw Normal View History

2013-10-23 23:25:19 -04:00
fzf - Fuzzy finder for your shell
=================================
2013-10-22 21:26:55 -04:00
fzf is a general-purpose fuzzy finder for your shell.
2013-10-29 09:14:11 -04:00
![](https://raw.github.com/junegunn/i/master/fzf.gif)
2013-10-28 02:50:46 -04:00
2014-04-02 12:29:21 -04:00
([tmux integration!](https://cloud.githubusercontent.com/assets/700826/2593609/3ec13962-ba83-11e3-88d3-f9f95bd8a64b.gif))
2013-10-23 23:25:19 -04:00
It was heavily inspired by [ctrlp.vim](https://github.com/kien/ctrlp.vim) and
the likes.
2013-10-22 21:26:55 -04:00
Requirements
------------
2013-12-25 11:15:46 -05:00
fzf requires Ruby (>= 1.8.5).
2013-10-22 21:26:55 -04:00
Installation
------------
Clone this repository and run
2013-10-22 21:26:55 -04:00
[install](https://github.com/junegunn/fzf/blob/master/install) script.
```sh
git clone https://github.com/junegunn/fzf.git ~/.fzf
~/.fzf/install
2013-10-22 21:26:55 -04:00
```
2014-01-14 02:51:52 -05:00
The script will setup:
2014-01-14 02:51:52 -05:00
- `fzf` executable
2014-03-13 02:28:01 -04:00
- Key bindings (`CTRL-T`, `CTRL-R`, and `ALT-C`) for bash and zsh
2014-01-14 02:51:52 -05:00
- Fuzzy auto-completion for bash
2013-10-22 21:26:55 -04:00
2014-03-30 21:15:38 -04:00
If you don't use bash or zsh, you have to manually place fzf executable in a
directory included in `$PATH`. Key bindings are not yet supported.
2013-10-31 12:12:46 -04:00
### Install as Vim plugin
2013-10-22 21:26:55 -04:00
2014-03-03 21:25:50 -05:00
Once you have cloned the repository, add the following line to your .vimrc.
2013-10-22 21:26:55 -04:00
2014-03-03 21:25:50 -05:00
```vim
set rtp+=~/.fzf
```
2013-10-22 21:26:55 -04:00
2014-03-03 21:25:50 -05:00
Or you may use any Vim plugin manager, such as
[vim-plug](https://github.com/junegunn/vim-plug).
2013-10-22 21:26:55 -04:00
Usage
-----
2013-10-25 05:31:16 -04:00
```
usage: fzf [options]
Search
-x, --extended Extended-search mode
-e, --extended-exact Extended-search mode (exact match)
-i Case-insensitive match (default: smart-case match)
+i Case-sensitive match
-n, --nth=[-]N[,..] Comma-separated list of field indexes for limiting
search scope (positive or negative integers)
2014-03-29 04:05:35 -04:00
-d, --delimiter=STR Field delimiter regex for --nth (default: AWK-style)
Search result
-s, --sort=MAX Maximum number of matched items to sort (default: 1000)
+s, --no-sort Do not sort the result. Keep the sequence unchanged.
Interface
-m, --multi Enable multi-select with tab/shift-tab
--no-mouse Disable mouse
+c, --no-color Disable colors
+2, --no-256 Disable 256-color
--black Use black background
Scripting
-q, --query=STR Start the finder with the given query
-1, --select-1 Automatically select the only match
-0, --exit-0 Exit immediately when there's no match
-f, --filter=STR Filter mode. Do not start interactive finder.
Environment variables
FZF_DEFAULT_COMMAND Default command to use when input is tty
FZF_DEFAULT_OPTS Defaults options. (e.g. "-x -m --sort 10000")
2013-10-25 05:31:16 -04:00
```
2013-10-22 21:26:55 -04:00
fzf will launch curses-based finder, read the list from STDIN, and write the
selected item to STDOUT.
```sh
find * -type f | fzf > selected
```
Without STDIN pipe, fzf will use find command to fetch the list of
2013-11-01 23:56:43 -04:00
files excluding hidden ones. (You can override the default command with
`FZF_DEFAULT_COMMAND`)
2013-10-22 21:26:55 -04:00
```sh
vim $(fzf)
2013-10-22 21:26:55 -04:00
```
2013-10-25 05:31:16 -04:00
If you want to preserve the exact sequence of the input, provide `--no-sort` (or
`+s`) option.
```sh
2013-10-25 05:31:16 -04:00
history | fzf +s
```
2014-03-15 03:54:25 -04:00
### Keys
2013-10-22 21:26:55 -04:00
Use CTRL-J and CTRL-K (or CTRL-N and CTRL-P) to change the selection, press
enter key to select the item. CTRL-C, CTRL-G, or ESC will terminate the finder.
2013-10-22 21:26:55 -04:00
The following readline key bindings should also work as expected.
- CTRL-A / CTRL-E
- CTRL-B / CTRL-F
2014-03-15 03:54:25 -04:00
- CTRL-W / CTRL-U / CTRL-Y
2013-11-16 11:19:16 -05:00
- ALT-B / ALT-F
2013-10-22 21:26:55 -04:00
2013-11-09 13:56:18 -05:00
If you enable multi-select mode with `-m` option, you can select multiple items
2013-11-10 06:19:57 -05:00
with TAB or Shift-TAB key.
2013-11-09 13:56:18 -05:00
You can also use mouse. Double-click on an item to select it or shift-click (or
ctrl-click) to select multiple items. Use mouse wheel to move the cursor up and
down.
2013-11-15 12:21:39 -05:00
### Extended-search mode
2013-11-15 12:21:39 -05:00
With `-x` or `--extended` option, fzf will start in "extended-search mode".
2013-11-15 12:21:39 -05:00
In this mode, you can specify multiple patterns delimited by spaces,
such as: `^music .mp3$ sbtrkt !rmx`
2013-11-15 11:55:33 -05:00
| Token | Description | Match type |
| -------- | -------------------------------- | -------------------- |
| `^music` | Items that start with `music` | prefix-exact-match |
| `.mp3$` | Items that end with `.mp3` | suffix-exact-match |
| `sbtrkt` | Items that match `sbtrkt` | fuzzy-match |
| `!rmx` | Items that do not match `rmx` | inverse-fuzzy-match |
| `'wild` | Items that include `wild` | exact-match (quoted) |
| `!'fire` | Items that do not include `fire` | inverse-exact-match |
If you don't need fuzzy matching and do not wish to "quote" every word, start
fzf with `-e` or `--extended-exact` option.
Useful examples
---------------
2013-10-22 21:26:55 -04:00
```sh
# fe [FUZZY PATTERN] - Open the selected file with the default editor
# - Bypass fuzzy finder if there's only one match (--select-1)
# - Exit if there's no match (--exit-0)
fe() {
local file
file=$(fzf --query="$1" --select-1 --exit-0)
[ -n "$file" ] && ${EDITOR:-vim} "$file"
2013-10-24 11:40:04 -04:00
}
2013-10-22 21:26:55 -04:00
# fd - cd to selected directory
fd() {
local dir
dir=$(find ${1:-*} -path '*/\.*' -prune \
-o -type d -print 2> /dev/null | fzf +m) &&
cd "$dir"
2013-10-22 21:26:55 -04:00
}
# fda - including hidden directories
fda() {
local dir
dir=$(find ${1:-.} -type d 2> /dev/null | fzf +m) && cd "$dir"
2013-10-22 21:26:55 -04:00
}
# fh - repeat history
fh() {
eval $(([ -n "$ZSH_NAME" ] && fc -l 1 || history) | fzf +s | sed 's/ *[0-9]* *//')
}
# fkill - kill process
fkill() {
2013-11-09 14:00:27 -05:00
ps -ef | sed 1d | fzf -m | awk '{print $2}' | xargs kill -${1:-9}
}
# fbr - checkout git branch
fbr() {
local branches branch
branches=$(git branch) &&
branch=$(echo "$branches" | fzf +s +m) &&
git checkout $(echo "$branch" | sed "s/.* //")
}
2014-03-19 19:07:47 -04:00
# fco - checkout git commit
fco() {
local commits commit
commits=$(git log --pretty=oneline --abbrev-commit --reverse) &&
commit=$(echo "$commits" | fzf +s +m -e) &&
git checkout $(echo "$commit" | sed "s/ .*//")
}
2014-03-29 04:05:35 -04:00
# ftags - search ctags
ftags() {
local line
[ -e tags ] &&
line=$(
awk 'BEGIN { FS="\t" } !/^!/ {print toupper($4)"\t"$1"\t"$2"\t"$3}' tags |
cut -c1-80 | fzf --nth=1,2
) && $EDITOR $(cut -f3 <<< "$line") -c "set nocst" \
-c "silent tag $(cut -f2 <<< "$line")"
2014-03-29 04:05:35 -04:00
}
```
2013-12-21 10:22:23 -05:00
Key bindings for command line
-----------------------------
2014-01-14 02:51:52 -05:00
The install script will setup the following key bindings.
2014-03-13 01:29:27 -04:00
### bash/zsh
- `CTRL-T` - Paste the selected file path(s) into the command line
- `CTRL-R` - Paste the selected command from history into the command line
- `ALT-C` - cd into the selected directory
2013-11-08 11:16:39 -05:00
If you're on a tmux session, `CTRL-T` will launch fzf in a new split-window. You
may disable this tmux integration by setting `FZF_TMUX` to 0, or change the
2014-03-28 04:15:32 -04:00
height of the window with `FZF_TMUX_HEIGHT` (e.g. `20`, `50%`).
2014-03-13 01:29:27 -04:00
The source code can be found in `~/.fzf.bash` and in `~/.fzf.zsh`.
2013-11-08 11:16:39 -05:00
2013-12-14 08:29:57 -05:00
Auto-completion
---------------
Disclaimer: *Auto-completion feature is currently experimental, it can change
over time*
### bash
#### Files and directories
2013-11-29 03:49:48 -05:00
Fuzzy completion for files and directories can be triggered if the word before
the cursor ends with the trigger sequence which is by default `**`.
- `COMMAND [DIRECTORY/][FUZZY_PATTERN]**<TAB>`
```sh
2013-11-19 11:42:57 -05:00
# Files under current directory
# - You can select multiple items with TAB key
vim **<TAB>
2013-11-19 11:42:57 -05:00
# Files under parent directory
vim ../**<TAB>
# Files under parent directory that match `fzf`
vim ../fzf**<TAB>
2013-11-19 11:42:57 -05:00
# Files under your home directory
vim ~/**<TAB>
2013-11-19 11:42:57 -05:00
# Directories under current directory (single-selection)
cd **<TAB>
2013-11-19 11:42:57 -05:00
# Directories under ~/github that match `fzf`
cd ~/github/fzf**<TAB>
```
#### Process IDs
Fuzzy completion for PIDs is provided for kill command. In this case
2013-11-29 03:49:48 -05:00
there is no trigger sequence, just press tab key after kill command.
```sh
# Can select multiple processes with <TAB> or <Shift-TAB> keys
kill -9 <TAB>
```
#### Host names
2013-11-29 04:09:51 -05:00
For ssh and telnet commands, fuzzy completion for host names is provided. The
names are extracted from /etc/hosts and ~/.ssh/config.
```sh
ssh **<TAB>
telnet **<TAB>
```
2013-11-19 11:42:57 -05:00
#### Settings
```sh
2013-11-19 11:42:57 -05:00
# Use ~~ as the trigger sequence instead of the default **
export FZF_COMPLETION_TRIGGER='~~'
2013-11-19 11:42:57 -05:00
# Options to fzf command
export FZF_COMPLETION_OPTS='+c -x'
```
### zsh
2013-11-19 11:42:57 -05:00
TODO :smiley:
(Pull requests are appreciated.)
2014-01-07 03:07:02 -05:00
Usage as Vim plugin
-------------------
2014-03-27 11:58:07 -04:00
(fzf is a command-line utility, naturally it is only accessible in terminal Vim)
2014-03-25 06:55:52 -04:00
2014-03-27 11:58:07 -04:00
### `:FZF[!]`
If you have set up fzf for Vim, `:FZF` command will be added.
2014-01-07 03:07:02 -05:00
```vim
" Look for files under current directory
:FZF
" Look for files under your home directory
:FZF ~
" With options
:FZF --no-sort -m /tmp
```
2014-03-27 11:58:07 -04:00
Note that the environment variables `FZF_DEFAULT_COMMAND` and `FZF_DEFAULT_OPTS`
2014-03-25 06:55:52 -04:00
also apply here.
If you're on a tmux session, `:FZF` will launch fzf in a new split-window whose
2014-03-28 04:15:32 -04:00
height can be adjusted with `g:fzf_tmux_height` (default: '40%'). However, the
bang version (`:FZF!`) will always start in fullscreen.
2014-03-27 11:58:07 -04:00
2014-03-25 06:55:52 -04:00
### `fzf#run([options])`
For more advanced uses, you can call `fzf#run()` function which returns the list
of the selected items.
`fzf#run()` may take an options-dictionary:
2014-03-28 04:15:32 -04:00
| Option name | Type | Description |
| ----------- | ------------- | ------------------------------------------------------------------- |
| `source` | string | External command to generate input to fzf (e.g. `find .`) |
| `source` | list | Vim list as input to fzf |
| `sink` | string | Vim command to handle the selected item (e.g. `e`, `tabe`) |
| `sink` | funcref | Reference to function to process each selected item |
| `options` | string | Options to fzf |
| `dir` | string | Working directory |
| `tmux` | number/string | Use tmux split if possible with the given height (e.g. `20`, `50%`) |
2014-03-25 06:55:52 -04:00
#### Examples
If `sink` option is not given, `fzf#run` will simply return the list.
2014-01-07 03:07:02 -05:00
```vim
2014-03-25 06:55:52 -04:00
let items = fzf#run({ 'options': '-m +c', 'dir': '~', 'source': 'ls' })
2014-01-07 03:07:02 -05:00
```
2014-03-25 06:55:52 -04:00
But if `sink` is given as a string, the command will be executed for each
selected item.
2014-01-07 03:07:02 -05:00
```vim
2014-03-25 06:55:52 -04:00
" Each selected item will be opened in a new tab
let items = fzf#run({ 'sink': 'tabe', 'options': '-m +c', 'dir': '~', 'source': 'ls' })
2014-01-07 03:07:02 -05:00
```
2014-03-25 06:55:52 -04:00
We can also use a Vim list as the source as follows:
2014-01-07 03:07:02 -05:00
```vim
2014-03-25 06:55:52 -04:00
" Choose a color scheme with fzf
2014-03-27 11:58:07 -04:00
nnoremap <silent> <Leader>C :call fzf#run({
2014-03-25 06:55:52 -04:00
\ 'source':
\ map(split(globpath(&rtp, "colors/*.vim"), "\n"),
\ "substitute(fnamemodify(v:val, ':t'), '\\..\\{-}$', '', '')"),
\ 'sink': 'colo',
2014-03-27 11:58:07 -04:00
\ 'options': '+m',
\ 'tmux': 15
\ })<CR>
2014-01-07 03:07:02 -05:00
```
2014-03-25 06:55:52 -04:00
`sink` option can be a function reference. The following example creates a
handy mapping that selects an open buffer.
```vim
" List of buffers
function! g:buflist()
redir => ls
silent ls
redir END
return split(ls, '\n')
endfunction
function! g:bufopen(e)
execute 'buffer '. matchstr(a:e, '^[ 0-9]*')
endfunction
2014-03-27 11:58:07 -04:00
nnoremap <silent> <Leader><Enter> :call fzf#run({
2014-03-25 06:55:52 -04:00
\ 'source': g:buflist(),
\ 'sink': function('g:bufopen'),
\ 'options': '+m +s',
2014-03-27 11:58:07 -04:00
\ 'tmux': 15
2014-03-25 06:55:52 -04:00
\ })<CR>
```
2014-01-07 03:07:02 -05:00
2013-11-10 05:51:32 -05:00
Tips
----
2014-03-08 20:43:59 -05:00
### Rendering issues
If you have any rendering issues, check the followings:
1. Make sure `$TERM` is correctly set. fzf will use 256-color only if it
contains `256` (e.g. `xterm-256color`)
2014-03-08 21:52:35 -05:00
2. If you're on screen or tmux, `$TERM` should be either `screen` or
2014-03-08 20:43:59 -05:00
`screen-256color`
3. Some terminal emulators (e.g. mintty) have problem displaying default
background color and make some text unable to read. In that case, try `--black`
option. And if it solves your problem, I recommend including it in
`FZF_DEFAULT_OPTS` for further convenience.
4. If you still have problem, try `--no-256` option or even `--no-color`.
5. Ruby 1.9 or above is required for correctly displaying unicode characters.
2013-11-10 05:51:32 -05:00
2013-12-21 10:22:23 -05:00
### Ranking algorithm
fzf sorts the result first by the length of the matched substring, then by the
length of the whole string. However it only does so when the number of matches
is less than the limit which is by default 1000, in order to avoid the cost of
sorting a large list and limit the response time of the query.
This limit can be adjusted with `-s` option, or with the environment variable
`FZF_DEFAULT_OPTS`.
2013-12-21 10:22:23 -05:00
```sh
export FZF_DEFAULT_OPTS="--sort 20000"
2013-12-21 10:22:23 -05:00
```
2013-10-22 21:26:55 -04:00
License
-------
MIT
Author
------
Junegunn Choi