again.fish

A fish plugin that prepopulates the next prompt with the contents and cursor position of the previous prompt.

Example Scenario

Say you wanted to search for several different things in a directory using grep. Then you would have to type out the command and press enter. To search for the next thing you would have to press up in order to get the previous prompt. And then move your cursor to the previous query, delete it and the retype it. This becomes tedious very quickly. But with again.fish this type of scenario can be handled effortlessly!

Say you had the following prompt, where the | character is the cursor position.

grep --perl-regexp "|" **.fish

Press alt+a, and then type something like

grep --perl-regexp "set -g|" **.fish

Press enter to execute the prompt. Then the next prompt will already be prepulated like this

grep --perl-regexp "|" **.fish

Simply press alt+a to disable again when you are done.

Installation

fisher install kpbaks/again.fish

Prompt Integration

To make it easier to notice that the again "submode" has been activated I suggest you to configure your prompt to show this. The plugin exposes a global exported variable called AGAIN_ENABLED when the again "submode" is active.

starship.rs

starship has a module for showing environment variables, dependent on whether the variable is defined or not. Using the following snippet in ~/.config/starship.toml

format = """
${env_var.AGAIN_ENABLED}
... rest of your format string
"""

[env_var.AGAIN_ENABLED]
style = "bold fg:red"
default = ""
format = "[$env_value]($style)"
description = "again.fish"
disabled = false

adds the leftmost red segment, when again is active:

Customization

The following variables can be changed to customize the plugin:

Variable	Default	Description	Constraints
`AGAIN_KEYBIND`	`\ea` `alt+a`	The keybind used to toggle the again "submode"	Must match the keybind format expected by the `bind` builtin.
`AGAIN_ENABLED_MESSAGE`	`again enabled ($AGAIN_KEYBIND to disable)`	The value of the `$AGAIN_ENABLED` variable, used to see if the again "submode" is enabled. The value is only relevant for any kind of prompt integration).

kpbaks / again.fish