#275: Update copyright year and GHA to check year #11

	---

	name: copyright
	on:
	push:
	branches:
	- master
	pull_request:
	branches:
	- master

	jobs:
	copyright:
	runs-on: ubuntu-22.04
	steps:
	- uses: actions/checkout@v4
	- name: Run check
	run: \|
	bash - << 'SCRIPT'

	# Get the current year
	current_year=$(date +"%Y")

	# Ignore files and directories
	ignore_files="(.git\|node_modules\|build\|dist\|temp\|check_copyright.sh)"

	# Directory to search
	search_dir="."

	# Pattern to look for: 'Copyright (c)'
	pattern="Copyright (c)"

	exit_code=0

	# Find files containing the copyright notice
	echo "Checking files in $search_dir for outdated copyright years..."
	echo "Current year is $current_year."

	# Iterate over files, redirecting into while loop to avoid subshell
	find $search_dir -type f -print0 > tmp.$$ \|\| exit 1
	while IFS= read -r -d $'\0' file; do
	# Skip files in the ignore list
	if [[ "$file" =~ $ignore_files ]]; then
	continue
	fi

	# Use grep to find the line and awk to extract the year
	year_line=$(grep "$pattern" "$file")

	if [[ -n "$year_line" ]]; then
	# Extract year assuming the year is after 'Copyright (c)'
	year=$(echo "$year_line" \| grep -E -oh "[0-9]{4}-[0-9]{4}")
	year=$(echo "$year" \| awk -F'-' '{print $2}')

	# Check if the extracted year is not equal to the current year
	if [[ "$year" -ne "$current_year" ]]; then
	echo "Outdated copyright year ($year) in file: $file"
	exit_code=1
	fi
	fi
	done < tmp.$$
	rm tmp.$$ # Clean up temporary file

	echo "Check complete."
	exit $exit_code
	SCRIPT

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