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      1 #!/usr/bin/env bash
      2 #
      3 # Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
      4 #
      5 # Licensed under the OpenSSL license (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
     64