(rip)grep pipelines in fzf

[aris-mav]

Hello everyone.

I have been extensively using the following fzf command to interactively grep through my text files:

fzf --ansi \
--delimiter : \
--bind "change:reload:sleep 0.1; rg --multiline --line-number --no-heading --color=always --smart-case {q} || true" \
--bind "enter:execute($editcommand)" \
--preview "bat --style=numbers --color=always --highlight-line {2} {1}" \
--preview-window="right:66%:wrap" \
--reverse --height 100%

and it's been working great, however, there is one feature I'm missing.

I would like to have a --bind option which, after typing some text and pressing some key (e.g. ctrl-s), would capture all files with matches, and start a new search, but now looking only into the files captured previously.

It would effectively be like: rg -l 'some text' | xargs rg 'some other text'

I was looking for an option like {q} or {1} which captures all current outputs, but could not find anything.

Can this be somehow implemented?

Looking forward to any advice!

[phanen]

related: #4279
although it's not live action, I think it can be done similar

you can write a action to store some filtered result in a tmpfile, then cat it out to reload

match placeholder:

- Added `{*}` placeholder flag that evaluates to all matched items.

[aris-mav]

Thank you @phanen, seems related indeed.
However, I still can't figure out how to use the information in #4279 to achieve the goal above.
Am I missing something?

[aris-mav]

Update: had another look with a clearer head and looks like this does the job:

#!/bin/sh

validfiles=$(mktemp)
ls > $validfiles

previewcmd='bat --style=numbers --color=always --highlight-line {2} {1}'
grepcmd="xargs rg --multiline --line-number --no-heading --color=always --smart-case < $validfiles"
prevwin='right:66%:wrap'

fzf --ansi \
    --delimiter : \
    --preview "$previewcmd" \
    --preview-window="$prevwin" \
    --reverse --height 100% \
    --bind "change:reload:sleep 0.1;$grepcmd {q} || true" \
    --bind "ctrl-g:execute-silent(
        printf '%s\n' {*} | awk -F: '{print \$1}' | sort -u > $validfiles
        )+clear-query"

Turns out {*} is what I needed, thank you very much for the suggestion @phanen.