kamp-buffers

#!/bin/sh
#
# pick buffers
#
# requires:
# - fzf (https://github.com/junegunn/fzf)
# - bat (https://github.com/sharkdp/bat)

set -euf

usage() {
    printf "Usage: %s: [-s session]\n" "$(basename "$0")" >&2
    exit 2
}

while getopts 's:h' OPTION; do
    case $OPTION in
    s)
        session="$OPTARG"
        ;;
    h|?)
        usage
        ;;
    esac
done
shift $((OPTIND - 1))

: ${session:=$KAKOUNE_SESSION}

if kamp ctx -c >/dev/null 2>/dev/null; then
    exec_cmd="kamp -s $session send buffer {}"
else
    exec_cmd="kamp -s $session attach -b {}"
fi

buffers_cmd="kamp -s $session get -b \* val -s bufname"
preview_cmd="kamp -s $session cat -b {} | bat --color=always --line-range=:500 --file-name {}"
delete_cmd="kamp -s $session send -b {} delete-buffer"

eval "$buffers_cmd" |
    fzf --prompt 'buf> ' --preview "$preview_cmd" \
        --header '[c-x] delete' \
        --bind "ctrl-x:execute-silent($delete_cmd)+reload($buffers_cmd)" \
        --bind "enter:become($exec_cmd)"