Files
mongo-index-helper/export-indexes.sh
2026-04-01 11:50:03 +03:00

58 lines
1.4 KiB
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#!/usr/bin/env bash
set -euo pipefail
usage() {
echo "Usage: $0 --uri <uri> --db <dbname> --output <file>"
echo ""
echo " --uri MongoDB connection URI (e.g. mongodb://user:pass@host:27017/admin)"
echo " --db Database name"
echo " --output Path to output JSON file"
exit 1
}
URI=""
DB=""
OUTPUT=""
while [[ $# -gt 0 ]]; do
case "$1" in
--uri) URI="$2"; shift 2 ;;
--db) DB="$2"; shift 2 ;;
--output) OUTPUT="$2"; shift 2 ;;
*) echo "Unknown argument: $1"; usage ;;
esac
done
[[ -z "$URI" ]] && echo "Error: --uri is required" && usage
[[ -z "$DB" ]] && echo "Error: --db is required" && usage
[[ -z "$OUTPUT" ]] && echo "Error: --output is required" && usage
TMP_JS=$(mktemp /tmp/mongo-export-XXXXXX.js)
trap 'rm -f "$TMP_JS"' EXIT
cat > "$TMP_JS" <<'EOF'
const dbName = process.env.MONGO_DB;
const targetDb = db.getSiblingDB(dbName);
const result = {};
const collections = targetDb.getCollectionNames();
for (const collName of collections) {
const indexes = targetDb.getCollection(collName).getIndexes();
const filtered = indexes.filter(idx => idx.name !== "_id_");
if (filtered.length > 0) {
result[collName] = filtered.map(idx => {
const { v, ns, ...rest } = idx;
return rest;
});
}
}
print(JSON.stringify(result, null, 2));
EOF
MONGO_DB="$DB" mongosh --quiet "$URI" --file "$TMP_JS" > "$OUTPUT"
echo "Exported indexes to: $OUTPUT"