sudope Plugin for Fish Shell

About

A fish shell port of oh-my-zsh's sudo plugin

Install

With Oh-My-Fish:

omf install sudope

Usage

Fish 2.3 and later: Press Esc+Esc or Alt+Esc to activate. (See the "Escape in Fish" appendix if you're having trouble activating sudope)

Fish 2.2 and earlier: Press Ctrl+s to activate. (See Customization below if you want to change the binding.)

It will add sudo to the beginning of the line if missing, or remove it if it is present - while preserving the cursor position. If the current line is empty, it will do the same thing to the most recent history item.

Customization

The default binding sequence can be overriden by setting sudope_sequence to the desired sequence.

For example, to set the sequence to Alt+u you can add:

set -gx sudope_sequence \eu

To ~/.config/omf/init.fish.

Escape in Fish

Esc is treated specially in fish:

The escape key can be used standalone, for example, to switch from insertion mode to normal mode when using Vi keybindings. Escape can also be used as a "meta" key, to indicate the start of an escape sequence, like for function or arrow keys. Custom bindings can also be defined that begin with an escape character.

Holding alt and something else also typically sends escape, for example holding alt+a will send an escape character and then an "a".

fish waits for a period after receiving the escape character, to determine whether it is standalone or part of an escape sequence. While waiting, additional key presses make the escape key behave as a meta key. If no other key presses come in, it is handled as a standalone escape. The waiting period is set to 30 milliseconds (0.03 seconds). It can be configured by setting the fish_escape_delay_ms variable to a value between 10 and 5000 ms. This can be a universal variable that you set once from an interactive session.

Note: fish 2.2.0 and earlier used a default of 10 milliseconds, and provided no way to configure it. That effectively made it impossible to use escape as a meta key.

(from https://fishshell.com/docs/3.1/cmds/bind.html#special-case-the-escape-character)

In other words, using Esc+Esc is possible with fish 2.3+, but you might need to tweak fish_escape_delay_ms to more than 30ms if you're using fish 3.1+ and having trouble activating sudope reliably.

License

2015-2020 ISC @ Itzik Ephraim Commits e45d168 and 0928ab2: 2017 ISC @ Chloe Kudryavtsev