Tools/scripts: Add new script update_crates to replace CARGO_CRATES block

Simple shell script to help updating Makefile CARGO_CRATES variable
returned by make cargo-crates.

simplest way to use it :
   make cargo-crates | update_crates Makefile > NewMakefile

2 files changed, 65 insertions, 0 deletions

diff --git a/Tools/scripts/README b/Tools/scripts/README
index 1b7d2b838270..aa9b32f612e4 100644
--- a/Tools/scripts/README
+++ b/Tools/scripts/README
@@ -42,6 +42,9 @@ tindex - script used to build INDEXes for supported FreeBSD branches, which
          failure reports on ports@FreeBSD.org
 update-patches - generates updated patches.
 
+update_crates - script used to generate an updated Makefile using make cargo-crates
+                output
+
 ----------------------------------------------------------------------
 
 gnomedepends is a script, which analyses pkg/PLIST and gives an advice as to
diff --git a/Tools/scripts/update_crates b/Tools/scripts/update_crates
new file mode 100755
index 000000000000..c95b4bbec6af
--- /dev/null
+++ b/Tools/scripts/update_crates
@@ -0,0 +1,62 @@
+#!/bin/sh
+# Copyright (c) 2021 Rodrigo Osorio
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# MAINTAINER=   rodrigo@FreeBSD.org
+#
+
+usage() {
+	echo "usage: update_crates <makefile>"
+	echo
+	exit 1
+}
+
+if [ "$#" -ne 1 ]; then
+	usage
+	exit 1
+fi
+
+newcrates() {
+    while IFS= read -r nline
+    do
+        echo "$nline"
+    done < "/dev/stdin"
+}
+
+infile=$1
+incrates=0
+while IFS= read -r line <&3
+do
+    match=$(echo "${line}" | grep "^CARGO_CRATES=")
+    [ -n "${match}" ] && incrates=1
+    if [ "${incrates}" -eq 1 ]; then
+        if [ -z "$line" ]; then
+            incrates=0
+            newcrates
+            echo "$line"
+        fi
+    else
+        echo "${line}"
+    fi
+done 3< "$infile"