From 219dd857197a51af43e625ddddb7a6a3563ccf2d Mon Sep 17 00:00:00 2001
From: Alessandro Iezzi <aiezzi@alessandroiezzi.it>
Date: Wed, 14 May 2025 22:25:29 +0200
Subject: Initial commit

---
 clide | 89 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100755 clide

diff --git a/clide b/clide
new file mode 100755
index 0000000..a748a83
--- /dev/null
+++ b/clide
@@ -0,0 +1,89 @@
+#-
+# This file is part of Clide.
+#
+# Clide is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Clide is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Clide.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+#!/bin/sh
+
+__help()
+{
+	echo ''
+}
+
+__update_copyright()
+{
+	local YEAR=$(date +%Y)
+	local COPYRIGHT=copyright.txt  # Filename of the copyright to append to the source code
+
+	# Extension, to know wich symbol to use for the copyright
+	local EXTENSION="${1##*.}"
+	case $EXTENSION in
+		java|c|h)   local START='/*-'; local END=' */'; local ROW=' \*';;
+		properties) local START='#-';  local END='#';   local ROW='#'  ;;
+		Makefile)   local START='#-';  local END='#';   local ROW='#'  ;;
+	esac
+
+	# This is the range between the start and the end of the copyright header
+	local RANGE=$(echo $(cat $1 | grep -n "^$START$\|^$END$" | head -2 | sed -E 's/([0-9]+):.*/\1/g') | tr ' ', ',')
+
+	if [ -z $RANGE ]; then
+		# If the range is empty, copyright notice must be added
+		RANGE=0a
+		local ADD_BLANK_LINE=1
+	else
+		# Otherwise must be replaced
+		RANGE=${RANGE}c
+	fi
+
+	# Generate the content with
+	local CONTENT=$(cat $COPYRIGHT \
+		| sed "s/%YEAR%/$YEAR/g" \
+		| sed -E "s/^(.+)/$ROW \1/g" | sed -E "s/^$/$ROW/g")
+
+	if [ ! -z $ADD_BLANK_LINE ]; then
+ed "$1" <<EOF
+$RANGE
+$START
+$CONTENT
+$END
+
+.
+w
+q
+EOF
+	else
+ed "$1" <<EOF
+$RANGE
+$START
+$CONTENT
+$END
+.
+w
+q
+EOF
+	fi
+}
+
+if [ $# -eq 0 ]; then
+	__help
+	exit 1
+fi
+
+while [ $# -gt 0 ]; do
+	case $1 in
+		--update-copyright|-uc) __update_copyright $2;;
+	esac
+	shift
+done
-- 
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