From 4eb5aad667bc838b8ebb80c9b970d6bb2f6c013d Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jonas.gorski@gmail.com>
Date: Sat, 25 Jun 2016 15:58:35 +0200
Subject: [PATCH] scripts/getver.sh: try to get branch/upstream automatically

Instead of assuming master is the current branch and origin the right
upstream, try to get both dynamically. If the current branch is not
tracking any upstream, use the origin of the master branch.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
---
 scripts/getver.sh | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/scripts/getver.sh b/scripts/getver.sh
index 5d8788f202..38d526cb53 100755
--- a/scripts/getver.sh
+++ b/scripts/getver.sh
@@ -23,14 +23,23 @@ try_git() {
 		REV="$(git rev-parse HEAD~$((BASE_REV - GET_REV)))"
 		;;
 	*)
-		UPSTREAM_BASE="$(git merge-base $GET_REV origin/master)"
-		UPSTREAM_REV="$(git rev-list reboot..$UPSTREAM_BASE | wc -l | awk '{print $1}')"
+		BRANCH="$(git rev-parse --abbrev-ref HEAD)"
+		ORIGIN="$(git rev-parse --symbolic-full-name ${BRANCH}@{u} 2>/dev/null)"
+		[ -n "$ORIGIN" ] || ORIGIN="$(git rev-parse --symbolic-full-name master@{u} 2>/dev/null)"
 		REV="$(git rev-list reboot..$GET_REV | wc -l | awk '{print $1}')"
-		if [ -n "$REV" -a -n "$UPSTREAM_REV" -a "$REV" -gt "$UPSTREAM_REV" ]; then
-			REV="r${UPSTREAM_REV}+$((REV - UPSTREAM_REV))"
+
+		if [ -n "$ORIGIN" ]; then
+			UPSTREAM_BASE="$(git merge-base $GET_REV $ORIGIN)"
+			UPSTREAM_REV="$(git rev-list reboot..$UPSTREAM_BASE | wc -l | awk '{print $1}')"
 		else
-			REV="${REV:+r$REV}"
+			UPSTREAM_REV=$REV
+		fi
+
+		if [ "$REV" -gt "$UPSTREAM_REV" ]; then
+			REV="${UPSTREAM_REV}+$((REV - UPSTREAM_REV))"
 		fi
+
+		REV="${REV:+r$REV}"
 		;;
 	esac