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2024-07-11 10:35:04 +02:00

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#!/bin/bash
set -euo pipefail
SCRIPT_NAME="$(basename "$0")"
# Arg1: OLD_YEAR
# Arg2: NEW_YEAR
# Arg3: File Path
replace_copyright() {
local PATTERN="s|Copyright (c) 2010-${1}, Deusty, LLC|Copyright (c) 2010-${2}, Deusty, LLC|g"
if [[ "$(uname -s)" = 'Darwin' ]]; then
sed -i '' -e "${PATTERN}" "$3"
return $?
else
sed -i -e "${PATTERN}" "$3"
return $?
fi
}
current_year() {
date '+%Y'
return $?
}
last_year() {
date -v'-1y' '+%Y'
return $?
}
# Arg1: Mode (full, usage_only). Defaults to 'full'.
print_usage() {
echo "Usage: ${SCRIPT_NAME} [OLD_YEAR NEW_YEAR]"
if [[ "${1:-full}" = 'full' ]]; then
echo ''
echo 'If called with OLD_YEAR and NEW_YEAR arguments, updates the copyright years from OLD_YEAR to NEW_YEAR.'
echo 'If called with no arguments but OLD_YEAR and NEW_YEAR environment variables defined, updates from OLD_YEAR to NEW_YEAR.'
echo 'If called with no arguments and OLD_YEAR and NEW_YEAR not being defined, updates from last year to the current year.'
echo ''
echo 'Examples:'
echo "$ ${SCRIPT_NAME} 2016 2017 # Updates from 2016 to 2017."
echo "$ OLD_YEAR=2017 NEW_YEAR=2018 ${SCRIPT_NAME} # Updates from 2017 to 2018."
echo "$ ${SCRIPT_NAME} # Updates from $(last_year) to $(current_year)."
fi
}
OLD_YEAR=${OLD_YEAR:-$(last_year)}
NEW_YEAR=${NEW_YEAR:-$(current_year)}
if [[ $# -gt 0 ]]; then
if [[ $# -eq 2 ]]; then
OLD_YEAR="$1"
NEW_YEAR="$2"
elif [[ $# -eq 1 ]] && [[ $1 == '--help' ]] || [[ $1 == '-h' ]]; then
print_usage 'full'
exit 0
else
echo 'Specifying years via command line arguments requires two arguments (OLD_YEAR and NEW_YEAR)!'
echo 'For more information use --help.'
echo ''
print_usage 'usage_only'
exit 1
fi
fi
# We need to export the function so that bash can call it from the find exec argument.
export -f replace_copyright
EXTENDED_REGEX_FLAG_POST_PATH='-regextype posix-extended'
EXTENDED_REGEX_FLAG_PRE_PATH=''
if [[ "$(uname -s)" = 'Darwin' ]]; then
EXTENDED_REGEX_FLAG_PRE_PATH='-E'
EXTENDED_REGEX_FLAG_POST_PATH=''
fi
pushd "$(dirname "$0")/../" > /dev/null
find ${EXTENDED_REGEX_FLAG_PRE_PATH} \
. \
${EXTENDED_REGEX_FLAG_POST_PATH} \
-regex '.*\.([hm]|swift|pch)' \
-exec bash -c "replace_copyright \"${OLD_YEAR}\" \"${NEW_YEAR}\" \"{}\"" \;
replace_copyright "${OLD_YEAR}" "${NEW_YEAR}" './LICENSE'
popd > /dev/null
# Delete the function again
unset -f replace_copyright