#!/bin/sh

# wtf <file identifier>
#
#   or
#
# wtf $arch <file identifier>
#
#   where <file identifier> is on of:
#
# $filename
# /$full/$path/$to/$file
# $partial/$path/$to/$file

base_dir=$(
  readlink -f "${0%/*}/.."
)

search="$*"

case ${search%% *} in
  'i486')
    arch='i486'
    search="${search#* }"
  ;;
  'i686')
    arch='i686'
    search="${search#* }"
  ;;
  'pentium4')
    arch='pentium4'
    search="${search#* }"
  ;;
  *)
    arch='i686'
  ;;
esac

pkgfile -w \
  -C "${base_dir}/misc/pacman-${arch}.conf" \
  -D "${base_dir}/work/pkgfile-${arch}.cache" \
  -s "${search##*/}" | \
  xargs -rn1 \
    pkgfile -w \
      -C "${base_dir}/misc/pacman-${arch}.conf" \
      -D "${base_dir}/work/pkgfile-${arch}.cache" \
      -l | \
  if printf '%s\n' "${search}" | \
    grep -q '^/'; then
    grep -w "${search}"
  else
    grep "/${search}\$"
  fi | \
  sort -k2,2 | \
  sed '
    s,^\([^/[:space:]]\+\)/\([^/[:space:]]\+\)\s\(\S.*\)$,\2 [\1]: \3,
  ' | \
  sed '
    :a
    $!N
    s#^\(\([^/:[:space:]]\+ [^/:[:space:]]\+, \)*[^/:[:space:]]\+ [^/:[:space:]]\+\): \([^\n]\+\)\n\([^/:[:space:]]\+ [^/:[:space:]]\+\): \3$#\1, \4: \3#
    ta
    P
    D
  '