Push a git tag after a VERSION change

Normally expeditor does a 'git tag' for us when we use
'built_in:bump_version' but in this case we are doing the version bump
on our own since sometimes we do a major/minor bump based on the the
date.

Signed-off-by: Bryan McLellan <btm@loftninjas.org>

.expeditor/config.yml

@@ -44,6 +44,9 @@ merge_actions:
         - "Expeditor: Skip Omnibus"
         - "Expeditor: Skip All"
       only_if: bash:.expeditor/determine_version.sh
+  - bash:.expeditor/push-git-tag.sh:
+      only_if: bash:.expeditor/determine_version.sh
+      post_commit: true
 
 pipelines:
   - verify:

.expeditor/push-git-tag.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+# This gets run as a post-commit hook after merge to add the version tag so it
+# is easy to determine what changes are in a particular build.
+#
+# https://expeditor.chef.io/docs/reference/action-filters/#post-commit
+
+
+VERSION=`cat VERSION`
+
+git tag $VERSION
+git push origin $VERSION