Add script to cleanup dead remote branches

bin/git-branch-clean.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+set -e
+set -o pipefail
+
+if [ $# -lt 3 ]; then
+  echo "Usage: $0 path/to/keep.txt git@somerepo.com/repo.git\n"
+  exit 1
+fi
+
+IGNORE_FILE=$1
+REPO=$2
+
+if [ ! -r $IGNORE_FILE ]; then
+  echo "keep.txt not found - exiting..."
+  exit 1
+fi
+
+REMOTE_BRANCHES=$(git ls-remote $REPO | awk '{print $2}' | sed 's#refs/heads/##' | grep -v '^HEAD$')
+KEEP_BRANCHES=$(cat $IGNORE_FILE)
+
+for REMOTE_BRANCH in ${REMOTE_BRANCHES[@]}; do
+  if [[ " ${KEEP_BRANCHES[@]} " =~ "${REMOTE_BRANCH}" ]]; then
+    echo "Keeping $REMOTE_BRANCH"
+  else
+    echo "Deleting $REMOTE_BRANCH"
+    git push origin :$REMOTE_BRANCH
+  fi
+done