get-original-file

#!/bin/bash
filePath="$(realpath "$1")"
packageName="$(yay -Qqo "$filePath")"
packageNameWithVersion="$(expac '%n-%v-%a' "$packageName")"
if yay -Qqm | grep "$packageName" &>/dev/null; then
    searchPath="$XDG_CACHE_HOME/yay/$packageName"
else
    searchPath=/var/cache/pacman/pkg/
fi
packagePath="$(find "$searchPath" -type f -name "$packageNameWithVersion.pkg*" -not -name '*.sig')"
sudo tar -xvOf "$packagePath" "${filePath#/}"