a script which automates the process of merging the latest outstanding train into production

scripts/merge_train.sh

+#!/bin/bash
+
+# merge the latest outstanding train into production and create
+# a tag.
+
+# get up to date!
+echo "Getting up to date:"
+get fetch origin
+
+# first, let's identify the train
+TRAIN=`git branch -a | grep remotes/origin/train | sed -e 's/^.*train-\(.*\)$/\1/' | sort -n | tail -1`
+echo "Merging train ($TRAIN) into production" 
+
+git checkout prod
+git merge --no-ff remotes/origin/train-$TRAIN -m "integrating train $TRAIN"
+git branch -D train-$TRAIN
+git tag train-$TRAIN
+
+echo "All done!  Now you should delete the remote train, and push your changes"
+echo "git push origin :train-$TRAIN"
+echo "git push --tags origin prod"
+