ANDROID: scripts: get_emails.sh wrapper around get_maintainers

For a given patch file, this wrapper gives the list of maintainer/list
names and emails/list emails in a format that git send-email can
understand.

Bug: 452558671
Bug: 452304382
Change-Id: Ic3f07da403202e4c7f4770eb8c3c4fb9bc2de033
Signed-off-by: Saravana Kannan <saravanak@google.com>

scripts/get_emails.sh

@@ -0,0 +1,43 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2020, Google LLC. All rights reserved.
+# Author: Saravana Kannan <saravanak@google.com>
+
+# Find top of git repo
+while [ `pwd` != '/' -a ! -d .git ]
+do
+	cd ..
+done
+
+# Exit if you can't find it
+if [ ! -d .git ]
+then
+	exit 1
+fi
+
+if [ ! -f ./scripts/get_maintainer.pl ]
+then
+	exit 2
+fi
+
+opt='--no-rolestats --no-git-fallback --multiline --n'
+if [ "$1" = '-cc' ]
+then
+	shift
+	opt="$opt --no-m --no-r --l"
+	echo kernel-team@android.com
+else
+	opt="$opt --m --r --no-l"
+fi
+
+# Special case for git send-email that only passes one patch at a time
+if [ $# -eq 1 ]
+then
+	prefix="$1"
+	# Intentionally stripping out only the last 2 digits in the patch
+	# number
+	prefix=$(echo $1 | sed -e "s/[0-9][0-9]-.*\.patch/*.patch/")
+	set "$prefix"
+fi
+
+./scripts/get_maintainer.pl $opt $* 2>/dev/null