From 5f885537e29ecd6b63b50f8374799c8604e486be Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Sat, 22 Jul 2017 18:49:50 -0400
Subject: scripts/update-license-notice.sh: Rewrite in native SCL (works now)

---
diff --git a/scripts/update-license-notice.sh b/scripts/update-license-notice.sh
index 80b2ff8..e139b02 100755
--- a/scripts/update-license-notice.sh
+++ b/scripts/update-license-notice.sh
@@ -18,7 +18,9 @@
 
 set -eu
 
-cat >license-notice.txt <<-'EOF'
+LF='
+'
+NEW_NOTICE="$(cat <<-'EOF'
 	# This file is part of the ProteanOS Archive Manager.
 	#
 	# The ProteanOS Archive Manager is free software: you can redistribute
@@ -35,20 +37,26 @@ cat >license-notice.txt <<-'EOF'
 	# along with the ProteanOS Archive Manager.  If not, see
 	# <http://www.gnu.org/licenses/>.
 	EOF
+	)"
 
 if [ ${#} -eq 0 ]; then
 	printf 'Usage: %s <file>...\n' "${0}" >&2
 fi
 
-gnu_lic_url='<http:\/\/www.gnu.org\/licenses\/>'
 for file in "${@}"; do
-	sed '
-		/This program is free software:/,/'"${gnu_lic_url}"'/{
-			d
-			r license-notice.txt
-		}
-		' "${file}" >"${file}~"
-	mv "${file}~" "${file}"
+	text=''
+	while IFS= read -r line; do
+		case "${line}" in '# This program is free software:'*)
+			while IFS= read -r notice; do
+				case "${notice}" in
+					*'<http://www.gnu.org/licenses/>.')
+						text="${text}${NEW_NOTICE}${LF}"
+						break;
+						;;
+				esac
+			done
+		;; esac
+		text="${text}${line}${LF}"
+	done <"${file}"
+	printf '%s' "${text}" >"${file}"
 done
-
-rm -f license-notice.txt
--
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