Restore the latest dump of a mongo database into your local mongodb instance

restore-latest.sh

#!/bin/bash

######################################################################
# Restore the latest production dump into local mongodb
######################################################################

# NOTE: Will wipe existing local destination db before restoring latest

echo "Restoring latest production dump to local mongodb"

PRODDBNAME=meteor
DUMPDIR=~/ops/dumps
LOCALDBNAME=proddump

# ensure mongodb running locally
localMongo=`ps -Ax | grep [m]ongod | head -1`
if [ "${localMongo:-null}" = null ]; then
  echo "  mongod must be running. Halting script."
  exit 1
else
  echo "  local mongo found"
fi

# get filename of latest dump
LATEST=$(ls -t $DUMPDIR/mongo* | head -1)
echo "  latest: $LATEST"

echo "  extracting dump"
tar -vxf $LATEST -C $DUMPDIR

# get filename of latest
DIRNAME=${LATEST##*/}
#   strip .tar.xz extension
DIRNAME=${DIRNAME%.*.*}

# fix up directory names
echo "  renaming $PRODDBNAME to $LOCALDBNAME"
mv "$DUMPDIR/$PRODDBNAME" "$DUMPDIR/$LOCALDBNAME"

echo "  wipe existing $LOCALDBNAME db"
mongo $LOCALDBNAME --eval "db.dropDatabase()"

# do mongo restore to '$LOCALDBNAME' database
echo "  restoring to mongodb/$LOCALDBNAME"
mongorestore $DUMPDIR/$LOCALDBNAME > out.log

# remove existing dump
echo "  cleaning up $DUMPDIR/$LOCALDBNAME"
rm -rf "$DUMPDIR/$LOCALDBNAME"

Very convenient to use with rsync. Only tested on OSX.