util/openssl-update-copyright

   1 #!/usr/bin/env bash
   2 #
   3 # Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
   4 #
   5 # Licensed under the Apache License 2.0 (the "License").  You may not use
   6 # this file except in compliance with the License.  You can obtain a copy
   7 # in the file LICENSE in the source distribution or at
   8 # https://www.openssl.org/source/license.html
   9
  10
  11 myname="$(basename $0)"
  12
  13 this_year="$(date '+%Y')"
  14 some_year="[12][0-9][0-9][0-9]"
  15 year_range="(${some_year})(-${some_year})?"
  16
  17 copyright_owner="The OpenSSL Project"
  18 copyright="Copyright .*${year_range} .*${copyright_owner}"
  19
  20 # sed_script:
  21 #   for all lines that contain ${copyright} : {
  22 #     replace years yyyy-zzzz (or year yyyy) by yyyy-${this_year}
  23 #     replace repeated years yyyy-yyyy by yyyy
  24 #   }
  25 sed_script="/${copyright}/{ s/${year_range}/\1-${this_year}/ ; s/(${some_year})-\1/\1/ }"
  26
  27 function usage() {
  28         cat >&2 <<EOF
  29 usage: $myname [-h|--help] [file|directory] ...
  30
  31 Updates the year ranges of all OpenSSL copyright statements in the given
  32 files or directories. (Directories are traversed recursively.)
  33 EOF
  34 }
  35
  36 if [ $# -eq 0 ]; then
  37         usage
  38         exit 0
  39 fi
  40
  41
  42 for arg in "$@"; do
  43         case $arg in
  44                 -h|--help)
  45                         usage
  46                         exit 0
  47                         ;;
  48                 -*)
  49                         echo -e "illegal option: $arg\n" >& 2
  50                         usage
  51                         exit 1
  52                         ;;
  53                 *)
  54                         if [ -f "$arg" ]; then
  55                                 sed -E -i "${sed_script}" "$arg"
  56                         elif [ -d "$arg" ]; then
  57                                 find "$arg" -name '.[a-z]*' -prune -o -type f -exec sed -E -i "${sed_script}" {} +
  58                         else
  59                                 echo "$arg: no such file or directory" >&2
  60                         fi
  61                         ;;
  62         esac
  63 done