Add script to transition entire series to EM or EOL

Probably mostly useful for extended maintenance, but this adds a script
that can add a $series-em tag to all deliverables of a series as we
claimed we would do in the extended maintenance policy changes [0].

[0] https://docs.openstack.org/project-team-guide/stable-branches.html#extended-maintenance

Change-Id: Ibeec88bf4e81b97c523f416669e07a10aa86a53b
Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>

tools/transition_series.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+#
+# Convenience wrapper transition a release cycle to its next stable
+# phase.
+
+TOOLSDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+BASEDIR=$(dirname $TOOLSDIR)
+#source $TOOLSDIR/functions
+
+if [[ $# -lt 2 ]]; then
+    echo "Usage: $(basename $0) <series> <tag>"
+    echo ""
+    echo "<tag> either 'em' or 'eol'"
+    exit 1
+fi
+
+series="$1"
+tag="$2"
+
+if [[ -z "$VIRTUAL_ENV" ]]; then
+    if [[ ! -d $BASEDIR/.tox/venv ]]; then
+        (cd $BASEDIR && tox -e venv --notest)
+    fi
+    source $BASEDIR/.tox/venv/bin/activate
+fi
+
+echo "Finding deliverables for $series series..."
+deliverables=$(list-deliverables --series $series)
+
+errors=()
+for deliverable in $deliverables; do
+    echo "Adding $series-$tag tag for $deliverable..."
+    new-release $series $deliverable $tag
+    if [[ $? -ne 0 ]]; then
+        echo ""
+        echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
+        echo "$deliverable failed to update"
+        echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
+        echo ""
+
+        errors+=("$deliverable")
+    fi
+done
+
+if [[ ${#errors[@]} -ne 0 ]]; then
+    echo ""
+    echo "Errors adding tags to some deliverables. Check the following:"
+    echo "  ${errors[@]}"
+    exit 1
+fi