recipe_format now updates source code headers.

Note that it does depend on new source code files *having* a header,
even if it's just a blank block comment.

make.sh

@@ -75,7 +75,13 @@ recipe_clean() {
 
 recipe_format() {
 	find src -name '*.c' -or -name '*.h' | while IFS= read -r src; do
-		echo "indent $src"
+		# Update the headers
+		srcHeader=$(grep -n -m 1 '^ \*/' "$src" | cut -d ':' -f 1)
+		head "-n$srcHeader" "$src" |
+			diff -u -p - src/header.txt |
+			patch "$src"
+
+		# Format the source code
 		if indent "$src"; then
 			rm $(basename "$src").BAK
 		fi

src/header.txt

@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2022 Jordan Bancino <@jordan:bancino.net>
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */