add publish and track command to the release flow

git-flow-release

@@ -276,3 +276,50 @@ cmd_finish() {
 	fi
 	echo
 }
+
+cmd_publish() {
+	parse_args "$@"
+	expand_nameprefix_arg
+
+	# sanity checks
+	require_clean_working_tree
+	require_branch "$BRANCH"
+	git fetch -q "$ORIGIN"
+	require_branch_absent "$ORIGIN/$BRANCH"
+
+	# create remote branch
+	git push "$ORIGIN" "$BRANCH:refs/heads/$BRANCH"
+	git fetch -q "$ORIGIN"
+
+	# configure remote tracking
+	git config "branch.$BRANCH.remote" "$ORIGIN"
+	git config "branch.$BRANCH.merge" "refs/heads/$BRANCH"
+	git checkout "$BRANCH"
+
+	echo
+	echo "Summary of actions:"
+	echo "- A new remote branch '$BRANCH' was created"
+	echo "- The local branch '$BRANCH' was configured to track the remote branch"
+	echo "- You are now on branch '$BRANCH'"
+	echo
+}
+
+cmd_track() {
+	parse_args "$@"
+	require_name_arg
+
+	# sanity checks
+	require_clean_working_tree
+	require_branch_absent "$BRANCH"
+	git fetch -q "$ORIGIN"
+	require_branch "$ORIGIN/$BRANCH"
+
+	# create tracking branch
+	git checkout -b "$BRANCH" "$ORIGIN/$BRANCH"
+
+	echo
+	echo "Summary of actions:"
+	echo "- A new remote tracking branch '$BRANCH' was created"
+	echo "- You are now on branch '$BRANCH'"
+	echo
+}