File: files.sh
   1 #!/bin/sh
   2 
   3 # The MIT License (MIT)
   4 #
   5 # Copyright (c) 2026 pacman64
   6 #
   7 # Permission is hereby granted, free of charge, to any person obtaining a copy
   8 # of this software and associated documentation files (the "Software"), to deal
   9 # in the Software without restriction, including without limitation the rights
  10 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11 # copies of the Software, and to permit persons to whom the Software is
  12 # furnished to do so, subject to the following conditions:
  13 #
  14 # The above copyright notice and this permission notice shall be included in
  15 # all copies or substantial portions of the Software.
  16 #
  17 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  20 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23 # SOFTWARE.
  24 
  25 
  26 # files [options...] [folders/files...]
  27 #
  28 #
  29 # Show all files in all the folders given, digging recursively into any/all
  30 # subfolders. When not given any name, the current folder is used by default.
  31 #
  32 # All filenames given are given back, which allows picking files using the
  33 # so-called `glob` patterns, which can be mixed with folder names.
  34 #
  35 # Output is lines of absolute filepaths, one per line, without repetitions.
  36 #
  37 # The options are, available both in single and double-dash versions
  38 #
  39 #   -e, -empty    look only for empty files
  40 #   -h, -help     show this help message
  41 #   -t, -top      limit search to top-level files, ignoring subfolders
  42 
  43 
  44 case "$1" in
  45     -h|--h|-help|--help)
  46         if [ ! -e "$1" ]; then
  47             awk '/^# +files /, /^$/ { gsub(/^# ?/, ""); print }' "$0"
  48             exit 0
  49         fi
  50     ;;
  51 esac
  52 
  53 empty=''
  54 max_depth=''
  55 
  56 for arg in "$@"; do
  57     if [ "${arg}" = '--' ]; then
  58         shift
  59         break
  60     fi
  61 
  62     case "${arg}" in
  63         -e|--e|-empty|--empty)
  64             empty='-empty'
  65             shift
  66             continue
  67         ;;
  68 
  69         -t|--t|-top|--top)
  70             max_depth='-maxdepth 1'
  71             shift
  72             continue
  73         ;;
  74     esac
  75 
  76     break
  77 done
  78 
  79 awk_command='awk'
  80 find_command='find'
  81 if [ -e /usr/bin/stdbuf ]; then
  82     if [ -p /dev/stdout ] || [ -t 1 ]; then
  83         awk_command='stdbuf -oL awk'
  84     fi
  85     find_command='stdbuf -oL find'
  86 fi
  87 
  88 options="${max_depth} -type f ${empty}"
  89 
  90 for arg in "${@:-.}"; do
  91     if [ -f "${arg}" ]; then
  92         printf "%s\n" "$(realpath "${arg}")"
  93         continue
  94     fi
  95 
  96     if [ -d "${arg}" ]; then
  97         if echo "${arg}" | grep -q '/$'; then
  98             ${find_command} "${arg}" ${options} -exec realpath {} +
  99         else
 100             ${find_command} "${arg}/" ${options} -exec realpath {} +
 101         fi
 102     fi
 103 done | ${awk_command} '!c[$0]++; END { exit(NR == 0) }'