[PATCH v3 4/8] release.sh: generate ANNOUNCE email

[Andrey Albershteyn <aalbersh@redhat.com>]

Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Andrey Albershteyn <aalbersh@kernel.org>
---
 release.sh | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/release.sh b/release.sh
index c3f74bc8dc587a40d867dd22e1e4c6e4aabb8997..a2afb98c2391c418a1b1d8537ea9f7a2f5138c1e 100755
--- a/release.sh
+++ b/release.sh
@@ -13,11 +13,13 @@ set -e
 
 KUP=0
 COMMIT=1
+LAST_HEAD=""
 
 help() {
 	echo "$(basename) - create xfsprogs release"
 	printf "\t[--kup|-k] upload final tarball with KUP\n"
 	printf "\t[--no-commit|-n] don't create release commit\n"
+	printf "\t[--last-head|-l] commit of the last release\n"
 }
 
 update_version() {
@@ -48,6 +50,10 @@ while [ $# -gt 0 ]; do
 		--no-commit|-n)
 			COMMIT=0
 			;;
+		--last-head|-l)
+			LAST_HEAD=$2
+			shift
+			;;
 		--help|-h)
 			help
 			exit 0
@@ -122,6 +128,43 @@ if [ $KUP -eq 1 ]; then
 		pub/linux/utils/fs/xfs/xfsprogs/
 fi;
 
+mail_file=$(mktemp)
+if [ -n "$LAST_HEAD" ]; then
+	cat << EOF > $mail_file
+To: linux-xfs@vger.kernel.org
+Subject: [ANNOUNCE] xfsprogs $(git describe --abbrev=0) released
+
+Hi folks,
+
+The xfsprogs repository at:
+
+	git://git.kernel.org/pub/scm/fs/xfs/xfsprogs-dev.git
+
+has just been updated.
+
+Patches often get missed, so if your outstanding patches are properly reviewed
+on the list and not included in this update, please let me know.
+
+The for-next branch has also been updated to match the state of master.
+
+The new head of the master branch is commit:
+
+$(git log --oneline --format="%H" -1)
+
+New commits:
+
+$(git shortlog --format="[%h] %s" $LAST_HEAD..HEAD)
+
+Code Diffstat:
+
+$(git diff --stat --summary -C -M $LAST_HEAD..HEAD)
+EOF
+fi
+
 echo ""
 echo "Done. Please remember to push out tags and the branch."
 printf "\tgit push origin v${version} master:master master:for-next\n"
+if [ -n "$LAST_HEAD" ]; then
+	echo "Command to send ANNOUNCE email"
+	printf "\tneomutt -H $mail_file\n"
+fi

-- 
2.47.2