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Allowing to pass a query for exporting specific data. Added a LIMIT option to limit the number of returned results. Added a debug switch to see errors.
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| #!/bin/bash | |
| LOADING=false | |
| usage() | |
| { | |
| cat << EOF | |
| usage: $0 [options] dbname | |
| OPTIONS: | |
| -h Show this help. | |
| -l Load instead of export | |
| -u Mongo username | |
| -p Mongo password | |
| -H Mongo host string (ex. localhost:27017) | |
| EOF | |
| } | |
| while getopts "hlu:p:H:" opt; do | |
| MAXOPTIND=$OPTIND | |
| case $opt in | |
| h) | |
| usage | |
| exit | |
| ;; | |
| l) | |
| LOADING=true | |
| ;; | |
| u) | |
| USERNAME="$opt" | |
| ;; | |
| p) | |
| PASSWORD="$opt" | |
| ;; | |
| H) | |
| HOST="$opt" | |
| ;; | |
| \?) | |
| echo "Invalid option $opt" | |
| exit 1 | |
| ;; | |
| esac | |
| done | |
| shift $(($MAXOPTIND-1)) | |
| if [ -z "$1" ]; then | |
| echo "Usage: export-mongo [opts] <dbname>" | |
| exit 1 | |
| fi | |
| DB="$1" | |
| if [ -z "$HOST" ]; then | |
| CONN="localhost:27017/$DB" | |
| else | |
| CONN="$HOST/$DB" | |
| fi | |
| ARGS="" | |
| if [ -n "$USERNAME" ]; then | |
| ARGS="-u \"$USERNAME\"" | |
| fi | |
| if [ -n "$PASSWORD" ]; then | |
| ARGS="$ARGS -p \"$PASSWORD\"" | |
| fi | |
| if $LOADING ; then | |
| echo "Loading into $CONN" | |
| tar -xzf $DB.tar.gz | |
| pushd $DB >/dev/null | |
| for path in *.json; do | |
| collection=${path%.json} | |
| echo "Loading into $DB/$collection from $path" | |
| mongoimport $ARGS -d $DB -c $collection $path | |
| done | |
| popd >/dev/null | |
| rm -rf $DB | |
| else | |
| echo "Exporting from $CONN" | |
| COLLECTIONS=$(mongo $CONN $ARGS --quiet --eval "db.getCollectionNames()" | sed 's/,/ /g') | |
| mkdir /tmp/$DB | |
| pushd /tmp/$DB 2>/dev/null | |
| for collection in $COLLECTIONS; do | |
| echo "Exporting $DB/$collection ..." | |
| mongoexport $ARGS -d $DB -c $collection -o $collection.json | |
| done | |
| pushd /tmp 2>/dev/null | |
| tar -czf "$DB.tar.gz" $DB | |
| popd 2>/dev/null | |
| popd 2>/dev/null | |
| mv /tmp/$DB.tar.gz ./ | |
| rm -rf /tmp/$DB | |
| fi |
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