Run the current command and pipe the output to fzf

Question

What would be an easy way to bind a key binding from fish to run the current command prompt and pipe it to fzf for easy search/selection?

i.e. a 1 key-press way of accomplishing | fzf (enter)?

Answer 1

Seems like a pretty straightforward bind function, if I'm understanding correctly. At its simplest:

Saved in ~/.config/fish/functions/__append_pipe_fzf.fish:

function __append_pipe_fzf
    set -l cmd (commandline -b)
    commandline -r $cmd" | fzf"
    commandline -f execute
end

And then bind it to a key with something like: bind -k nul __append_pipe_fzf nul binds to Ctrl+Space (or ⌘+Space on Mac, which I believe is your case).

Of course, you can make this more robust by checking to see if the current command ends with a process starting with | fzf and remove it if so. Right now, it could conceivably append the | fzf even when you already have one there. Also, if you pressed it when the current commandline ended in |, I think it would generate an "or" statement, instead of what you want.