gsel

#!/usr/bin/env bash
# gsel - grep and select
#
# TODO: would be nice to open the selected files at the according position. However, vim 8 does not
# support opening several files at custom lines out of the box.
#
# author: andreasl

show_help() {
    script_name="${0##*/}"

    msg="${script_name}\n"
    msg+="Select some of the output of grep with the given parameters and open the according files"
    msg+=" in vim.\n"
    msg+="\n"
    msg+="Usage:\n"
    msg+="  ${script_name} <search-pattern>\n"
    msg+="\n"
    msg+="Examples:\n"
    msg+="  ${script_name} '2019'       # find & select files that contain '2019'\n"
    msg+="  ${script_name} '# TODO'     # find & select files that contain '# TODO'\n"
    msg+="  ${script_name} -h           # print the usage message\n"
    msg+="  ${script_name} --help       # print the usage message\n"
    printf "$msg"
}
[[ "$1" =~ ^(-h|--help)$ ]] && { show_help; exit; }

grep_cmd='rg -LSn --hidden --no-heading --no-ignore --color=always'
# manually cut; fzf can nicely --delimit similar to `cut`, but fails with file names that have leading & trailing spaces
preview_cmd='printf "%s" {} | cut -d: -f1 | xargs -d"\n" batcat --color=always --style=header,numbers -H{2} --line-range={2}:'
selections_str="$($grep_cmd "$*" | fzf -m --ansi --delimiter=: --preview="$preview_cmd" | cut -d: -f1)"
[ -n "$selections_str" ] && { mapfile -t selections <<< "$selections_str"; vim -p "${selections[@]}"; }