[dpdk-stable] [scripts] 3-backport: use get-maintainer.sh to CC subtree maintainers

[luca.boccassi@gmail.com]

From: Luca Boccassi <luca.boccassi@microsoft.com>

Signed-off-by: Luca Boccassi <luca.boccassi@microsoft.com>
---
 3-request-backport | 8 +++++++-
 README             | 4 ++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/3-request-backport b/3-request-backport
index d123531..a1725e5 100755
--- a/3-request-backport
+++ b/3-request-backport
@@ -2,6 +2,8 @@
 
 source ./lib.sh
 
+set -e
+
 list=""
 if [ $# -lt 1 ] && [ "$GIT_AM_PAUSE_ON_FAIL" = "yes" ]
 then
@@ -13,7 +15,7 @@ then
 	for _file in $list
 	do
 		_sub=$(grep Subject $_file | cut -d\  -f3-)
-		echo "$_applied" | grep -qF "$_sub" || (head -n1 $_file | awk '{print $2}' >> /tmp/.list-$$)
+		echo "$_applied" | grep -qF "$_sub" || (head -n1 $_file | awk -v _file=$_file '{print $2" "_file}' >> /tmp/.list-$$)
 	done
 	popd &>/dev/null
 else
@@ -33,6 +35,10 @@ get_cc_list()
 
 	> $cc_list
 	while read commit patch; do
+		# Has to be used from git repository directory
+		pushd $STABLE_DIR &>/dev/null
+		$STABLE_DIR/devtools/get-maintainer.sh $patch >> $cc_list
+		popd &>/dev/null
 		$GIT show $commit | grep -h '^.*: .*<.*@.*\..*>' |
 			sed 's/[^:]*: //' >> $cc_list
 	done < $list
diff --git a/README b/README
index 6489379..cc5f6bf 100644
--- a/README
+++ b/README
@@ -120,6 +120,10 @@ should keep an accumulated list for the stable tree and send out this
 request multiple times with the accumulated list of failed patches. This
 list will also be used by "6-announce-release".
 
+The 'devtools/get-maintainer.sh' tool from the DPDK repository is used to
+compile the list of maintainers to CC for each patch. A configuration file
+needs to be set up first, see the script itself for instructions.
+
 4-final-review
 ==============
 
-- 
2.29.2