fingers

![tmux-fingers](./logo.svg)

![demo](https://github.com/Morantron/tmux-fingers/assets/3304507/cafe8877-1c98-41b1-bb65-b72129fea701)

# Usage

Press ( <kbd>prefix</kbd> + <kbd>F</kbd> ) to enter **[fingers]** mode, it will highlight relevant stuff in the current
pane along with letter hints. By pressing those letters, the highlighted match
will be copied to the clipboard. Less keystrokes == profit!

Here is a list of the stuff highlighted by default.

* File paths
* SHAs
* numbers ( 4+ digits )
* hex numbers
* IP addresses
* kubernetes resources
* UUIDs
* git status/diff output

Checkout [list of built-in patterns](#fingers-enabled-builtin-patterns).

## Key shortcuts

While in **[fingers]** mode, you can use the following shortcuts:

* <kbd>a</kbd>-<kbd>z</kbd>: copies selected match to the clipboard
* <kbd>CTRL</kbd> + <kbd>a</kbd>-<kbd>z</kbd>: copies selected match to the clipboard and triggers [@fingers-ctrl-action](#fingers-ctrl-action). By default it triggers `:open:` action, which is useful for opening links in the browser for example.
* <kbd>SHIFT</kbd> + <kbd>a</kbd>-<kbd>z</kbd>: copies selected match to the clipboard and triggers [@fingers-shift-action](#fingers-shift-action). By default it triggers `:paste:` action, which automatically pastes selected matches.
* <kbd>ALT</kbd> + <kbd>a</kbd>-<kbd>z</kbd>: copies selected match to the clipboard and triggers [@fingers-alt-action](#fingers-alt-action). There is no default, configurable by the user.
* <kbd>TAB</kbd>: toggle multi mode. First press enters multi mode, which allows to select multiple matches. Second press will exit with the selected matches copied to the clipboard.
* <kbd>q</kbd>, <kbd>ESC</kbd> or <kbd>CTRL</kbd> + <kbd>c</kbd>: exit **[fingers]** mode

# Requirements

* tmux 3.0 or newer

# Installation

## Using [Tmux Plugin Manager](https://github.com/tmux-plugins/tpm)

Add the following to your list of TPM plugins in `.tmux.conf`:

```tmux
set -g @plugin 'Morantron/tmux-fingers'
```

Hit <kbd>prefix</kbd> + <kbd>I</kbd> to fetch and source the plugin. The first time you run it you'll be presented with a wizard to complete the installation. Depending on the platform, the wizard will offer the following installation methods:

- Building from source (requires [crystal](https://crystal-lang.org/install/)). _Available in all platforms_
- Install through [brew](https://brew.sh). _macOS only_.
- Download standalone binary. _Linux x86_64 and macOS arm64 only_.

## Manual

Clone the repo:

```
$ git clone https://github.com/Morantron/tmux-fingers ~/.tmux/plugins/tmux-fingers
```

Source it in your `.tmux.conf`:

```tmux
run-shell ~/.tmux/plugins/tmux-fingers/tmux-fingers.tmux
```

Reload TMUX conf by running:

```
$ tmux source-file ~/.tmux.conf
```

The first time you run it you'll be presented with a wizard to complete the installation.

# Configuration

NOTE: for changes to take effect, you'll need to source again your `.tmux.conf` file.

* [@fingers-key](#fingers-key)
* [@fingers-jump-key](#fingers-jump-key)
* [@fingers-pattern-N](#fingers-pattern-n)
* [@fingers-main-action](#fingers-main-action)
* [@fingers-ctrl-action](#fingers-ctrl-action)
* [@fingers-alt-action](#fingers-alt-action)
* [@fingers-shift-action](#fingers-shift-action)
* [@fingers-hint-style](#fingers-hint-style)
* [@fingers-highlight-style](#fingers-highlight-style)
* [@fingers-backdrop-style](#fingers-backdrop-style)
* [@fingers-selected-hint-style](#fingers-selected-hint-style)
* [@fingers-selected-highlight-style](#fingers-selected-highlight-style)
* [@fingers-hint-position](#fingers-hint-position)
* [@fingers-keyboard-layout](#fingers-keyboard-layout)
* [@fingers-show-copied-notification](#fingers-show-copied-notification)
* [@fingers-enabled-builtin-patterns](#fingers-enabled-builtin-patterns)
* [@fingers-use-system-clipboard](#fingers-use-system-clipboard)
* [@fingers-enable-bindings](#fingers-enable-bindings)

Recipes:

* [Start tmux-fingers without prefix](#start-tmux-fingers-without-prefix)
* [Using only specific patterns](#using-only-specific-patterns)
* [Using arbitrary commands](#using-arbitrary-commands)
* [Target adjacent panes](#target-adjacent-panes)

## @fingers-key

`default: F`

Customize how to enter fingers mode. Always preceded by prefix: `prefix + @fingers-key`.

For example:

```tmux
set -g @fingers-key F
```

## @fingers-jump-key

`default: J`

Customize how to enter fingers jump mode. Always preceded by prefix: `prefix + @fingers-jump-key`.

In jump mode, the cursor will be placed in the position of the match after the hint is selected.

## @fingers-pattern-N

You can also add additional patterns if you want more stuff to be highlighted:

```tmux
# You can define custom patterns like this
set -g @fingers-pattern-0 'git rebase --(abort|continue)'

# Increment the number and define more patterns
set -g @fingers-pattern-1 'some other pattern'

# You can use a named capture group like this (?<match>YOUR-REGEX-HERE)
# to only highlight and copy part of the match.
set -g @fingers-pattern-2 'capture (?<match>only this)'

# Watch out for backslashes! For example the regex \d{50} matches 50 digits.
set -g @fingers-pattern-3 '\d{50}'  # No need to escape if you use single quotes
set -g @fingers-pattern-4 "\\d{50}" # If you use double quotes, you'll need to escape backslashes for special characters to work
set -g @fingers-pattern-5 \\d{50} # Escaping also needed if you don't use any quotes
```

Patterns use [PCRE pattern syntax](https://www.pcre.org/original/doc/html/pcrepattern.html).

If the introduced regex contains an error, an error will be shown when invoking the plugin.

## @fingers-main-action

`default: :copy:`

By default **tmux-fingers** will copy matches in tmux and system clipboard.

If you still want to set your own custom command you can do so like this:

```tmux
set -g @fingers-main-action '<your command here>'
```
This command will also receive the following:

  * `MODIFIER`: environment variable set to `ctrl`, `alt`, or `shift` specififying which modifier was used when selecting the match.
  * `HINT`: environment variable the selected letter hint itself ( ex: `q`, `as`, etc... ).
  * `stdin`: copied text will be piped to `@fingers-copy-command`.

You can also use the following special values:

* `:paste:` Copy the the match and paste it automatically.
* `:copy:` Uses built-in system clipboard integration to copy the match.
* `:open:` Uses built-in open file integration to open the file ( opens URLs in default browser, files in OS file navigator, etc ).

## @fingers-ctrl-action

`default: :open:`

Same as [@fingers-main-action](#fingers-main-action) but only called when match is selected by holding <kbd>ctrl</kbd>

## @fingers-alt-action

Same as [@fingers-main-action](#fingers-main-action) but only called when match is selected by holding <kbd>alt</kbd>

## @fingers-shift-action

`default: :paste:`

Same as [@fingers-main-action](#fingers-main-action) but only called when match is selected by holding <kbd>shift</kbd>

## @fingers-hint-style

`default: "fg=green,bold"`

With this option you can define the styles for the letter hints.

You can customize the styles using the same syntax used in `.tmux.conf` for styling the status bar.

More info in the `STYLES` section of `man tmux`.

Supported styles are: `bright`, `bold`, `dim`, `underscore`, `italics`.

## @fingers-highlight-style

`default: "fg=yellow"`

Custom styles for the highlighted match. See [@fingers-hint-style](#fingers-hint-style) for more details.

## @fingers-backdrop-style

`default: ""`

Custom styles for all the text that is not matched. See [@fingers-hint-style](#fingers-hint-style) for more details.

## @fingers-selected-hint-style

`default: "fg=blue,bold"`

Format for hints in selected matches in multimode.

## @fingers-selected-highlight-style

`default: "fg=blue"`

Format for selected matches in multimode.

## @fingers-hint-position

`default: "left"`

Control the position where the hint is rendered. Possible values are `"left"`
and `"right"`.

## @fingers-keyboard-layout

`default: "qwerty"`

Hints are generated taking optimal finger movement into account. You can choose between the following:

  * `qwerty`: the default, use all letters
  * `qwerty-left-hand`: only use letters easily reachable with left hand
  * `qwerty-right-hand`: only use letters easily reachable with right hand
  * `qwerty-homerow`: only use letters in the homerow
  * `qwertz`
  * `qwertz-left-hand`
  * `qwertz-right-hand`
  * `qwertz-homerow`
  * `azerty`
  * `azerty-left-hand`
  * `azerty-right-hand`
  * `azerty-homerow`
  * `colemak`
  * `colemak-left-hand`
  * `colemak-right-hand`
  * `colemak-homerow`
  * `dvorak`
  * `dvorak-left-hand`
  * `dvorak-right-hand`
  * `dvorak-homerow`

## @fingers-show-copied-notification

`default: 0`

Show a message using `tmux display-message` notifying about the copied result.

## @fingers-enabled-builtin-patterns

`default: all`

A list of comma separated pattern names. Built-in patterns are the following:

| Name              | Description                                               | Example                                        |
| ----------------- | --------------------------------------------------------- | ---------------------------------------------- |
| ip                | ipv4 addresses                                            | `192.168.0.1`                                  |
| uuid              | uuid identifier                                           | `f1b43afb-773c-4da2-9ae5-fef1aa6945ce`         |
| sha               | sha identifier                                            | `c8b911e2c7e9a6cc57143eaa12cad57c1f0d69df`     |
| digit             | four or more digits                                       | `1337`                                         |
| url               | urls (supported protocols: http/https/git/ssh/file)       | `https://asdf.com`                             |
| path              | file paths                                                | `path/to/file`                                 |
| hex               | hexidecimal numbers                                       | `0x00FF`                                       |
| kubernetes        | kubernetes identifier                                     | `deployment.apps/zookeeper`                    |
| git-status        | will match file paths in the output of git status         | `modified: ./path/to/file`                     |
| git-status-branch | will match branch name in the output of git status        | `Your branch is up to date withname-of-branch` |
| diff              | will match paths in diff output                           | `+++ a/path/to/file`                           |

## @fingers-use-system-clipboard

`default: 1`

Whether to use the system clipboard when copying matches. If set to `0`,
tmux-fingers will only copy matches to the tmux buffer.

## @fingers-enable-bindings

`default: 1`

By default, tmux-fingers will bind to `prefix` + `@fingers-key` and `prefix` +
`@fingers-jump-key`. You can opt-out of these bindings in case they clash with
other parts of your configuration.

Check [recipes](#Recipes) for alternative ways to set up bindings.

## @fingers-cli

You can set up key bindings directly to invoke tmux-fingers by using a special global option `@fingers-cli` exposed by the plugin.

The following options are available:

```
Usage:
        tmux-fingers start <arguments> [options]

Arguments:
        pane_id    pane id (also accepts tmux target-pane tokens specified in tmux man pages) (required)

Options:
        --mode              can be "jump" or "default" (default: default)
        --patterns          comma separated list of pattern names
        --main-action       command to which the output will be piped
        --ctrl-action       command to which the output will be piped when holding CTRL key
        --alt-action        command to which the output will be piped when holding ALT key
        --shift-action      command to which the output will be pipedwhen holding SHIFT key
        -h, --help          prints help
```

Check some examples in the [Recipes](#Recipes) section below.


# Recipes

## Start tmux-fingers without prefix

You can start tmux-fingers without having to press tmux prefix by adding bindings like this:

```tmux
# tmux.conf

# Start tmux fingers by pressing Alt+F
bind -n M-f run -b "#{@fingers-cli} start #{pane_id}"

# Start tmux fingers in jump mode by pressing Alt+J
bind -n M-j run -b "#{@fingers-cli} start #{pane_id} --mode jump"

```

## Using only specific patterns

You can start tmux-fingers with an specific set of built-in or custom patterns.

```tmux
# match urls with prefix + u
bind u run -b "#{@fingers-cli} start #{pane_id} --patterns url"

# match hashes with prefix + h
bind h run -b "#{@fingers-cli} start #{pane_id} --patterns sha"

# match git stuff with prefix + g
bind g run -b "#{@fingers-cli} start #{pane_id} --patterns git-status,git-status-branch"

# match custom pattern with prefix + y
set -g @fingers-pattern-yolo "yolo.*"
bind y run -b "#{@fingers-cli} start #{pane_id} --patterns yolo"
```

## Using arbitrary commands

You can use tmux-fingers with any arbitrary command.

```tmux
# edit file using nvim in a new tmux window with prefix + e
bind e run -b "#{@fingers-cli} start #{pane_id} --patterns path --main-action 'xargs tmux new-window nvim'"
```

## Target adjacent panes

You can use tmux target-pane tokens to target adjacent panes. This
configuration uses vim-style <kbd>ALT</kbd>+<kbd>hjkl</kbd> keys to
directionally adjacent panes.

Also uses <kbd>ALT</kbd>+<kbd>o</kbd> to target the last pane.

```tmux
bind -n M-h run -b "#{@fingers-cli} start {left-of}"
bind -n M-j run -b "#{@fingers-cli} start {down-of}"
bind -n M-k run -b "#{@fingers-cli} start {up-of}"
bind -n M-l run -b "#{@fingers-cli} start {right-of}"
bind -n M-o run -b "#{@fingers-cli} start {last}"
```

# Acknowledgements and inspiration

This plugin is heavily inspired by
[tmux-copycat](https://github.com/tmux-plugins/tmux-copycat) ( **tmux-fingers**
predefined search are *copycatted* :trollface: from
[tmux-copycat](https://github.com/tmux-plugins/tmux-copycat) ).

Kudos to [bruno-](https://github.com/bruno-) for paving the way to tmux
plugins! :clap: :clap:

# License

[MIT](https://github.com/Morantron/tmux-fingers/blob/master/LICENSE)