Update Node_modules

This commit is contained in:
2019-07-02 16:05:15 +02:00
parent 95a0ff3913
commit 9dab5e2dbc
3495 changed files with 39728 additions and 465154 deletions
+10 -3
View File
@@ -1,4 +1,5 @@
'use strict';
const Msg = require('../connection/msg').Msg;
const KillCursor = require('../connection/commands').KillCursor;
const GetMore = require('../connection/commands').GetMore;
const calculateDurationInMs = require('../utils').calculateDurationInMs;
@@ -17,7 +18,7 @@ const SENSITIVE_COMMANDS = new Set([
]);
// helper methods
const extractCommandName = command => Object.keys(command)[0];
const extractCommandName = commandDoc => Object.keys(commandDoc)[0];
const namespace = command => command.ns;
const databaseName = command => command.ns.split('.')[0];
const collectionName = command => command.ns.split('.')[1];
@@ -75,6 +76,10 @@ const extractCommand = command => {
};
}
if (command instanceof Msg) {
return command.command;
}
if (command.query && command.query.$query) {
let result;
if (command.ns === 'admin.$cmd') {
@@ -90,8 +95,7 @@ const extractCommand = command => {
}
Object.keys(LEGACY_FIND_OPTIONS_MAP).forEach(key => {
if (typeof command.options[key] !== 'undefined')
result[LEGACY_FIND_OPTIONS_MAP[key]] = command.options[key];
if (typeof command[key] !== 'undefined') result[LEGACY_FIND_OPTIONS_MAP[key]] = command[key];
});
OP_QUERY_KEYS.forEach(key => {
@@ -143,6 +147,9 @@ const extractReply = (command, reply) => {
};
}
// in the event of a `noResponse` command, just return
if (reply === null) return reply;
return reply.result;
};
+3 -1
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@@ -19,7 +19,9 @@ var CommandResult = function(result, connection, message) {
* @return {object}
*/
CommandResult.prototype.toJSON = function() {
return this.result;
let result = Object.assign({}, this, this.result);
delete result.message;
return result;
};
/**
+10 -52
View File
@@ -3,7 +3,6 @@
var retrieveBSON = require('./utils').retrieveBSON;
var BSON = retrieveBSON();
var Long = BSON.Long;
const MongoError = require('../error').MongoError;
const Buffer = require('safe-buffer').Buffer;
// Incrementing request id
@@ -22,7 +21,7 @@ var OPTS_EXHAUST = 64;
var OPTS_PARTIAL = 128;
// Response flags
var CURSOR_NOT_FOUND = 0;
var CURSOR_NOT_FOUND = 1;
var QUERY_FAILURE = 2;
var SHARD_CONFIG_STALE = 4;
var AWAIT_CAPABLE = 8;
@@ -46,9 +45,6 @@ var Query = function(bson, ns, query, options) {
this.ns = ns;
this.query = query;
// Ensure empty options
this.options = options || {};
// Additional options
this.numberToSkip = options.numberToSkip || 0;
this.numberToReturn = options.numberToReturn || 0;
@@ -466,53 +462,6 @@ Response.prototype.parse = function(options) {
// (See https://docs.mongodb.com/manual/reference/mongodb-wire-protocol/#wire-op-reply)
this.index = 20;
//
// Single document and documentsReturnedIn set
//
if (this.numberReturned === 1 && documentsReturnedIn != null && raw) {
// Calculate the bson size
bsonSize =
this.data[this.index] |
(this.data[this.index + 1] << 8) |
(this.data[this.index + 2] << 16) |
(this.data[this.index + 3] << 24);
// Slice out the buffer containing the command result document
var document = this.data.slice(this.index, this.index + bsonSize);
// Set up field we wish to keep as raw
var fieldsAsRaw = {};
fieldsAsRaw[documentsReturnedIn] = true;
_options.fieldsAsRaw = fieldsAsRaw;
// Deserialize but keep the array of documents in non-parsed form
var doc = this.bson.deserialize(document, _options);
if (doc instanceof Error) {
throw doc;
}
if (doc.errmsg) {
throw new MongoError(doc.errmsg);
}
if (!doc.cursor) {
throw new MongoError('Cursor not found');
}
// Get the documents
this.documents = doc.cursor[documentsReturnedIn];
this.numberReturned = this.documents.length;
// Ensure we have a Long valie cursor id
this.cursorId =
typeof doc.cursor.id === 'number' ? Long.fromNumber(doc.cursor.id) : doc.cursor.id;
// Adjust the index
this.index = this.index + bsonSize;
// Set as parsed
this.parsed = true;
return;
}
//
// Parse Body
//
@@ -537,6 +486,15 @@ Response.prototype.parse = function(options) {
this.index = this.index + bsonSize;
}
if (this.documents.length === 1 && documentsReturnedIn != null && raw) {
const fieldsAsRaw = {};
fieldsAsRaw[documentsReturnedIn] = true;
_options.fieldsAsRaw = fieldsAsRaw;
const doc = this.bson.deserialize(this.documents[0], _options);
this.documents = [doc];
}
// Set parsed
this.parsed = true;
};
+370
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@@ -0,0 +1,370 @@
'use strict';
const net = require('net');
const tls = require('tls');
const Connection = require('./connection');
const Query = require('./commands').Query;
const createClientInfo = require('../topologies/shared').createClientInfo;
const MongoError = require('../error').MongoError;
const MongoNetworkError = require('../error').MongoNetworkError;
const defaultAuthProviders = require('../auth/defaultAuthProviders').defaultAuthProviders;
const WIRE_CONSTANTS = require('../wireprotocol/constants');
const MAX_SUPPORTED_WIRE_VERSION = WIRE_CONSTANTS.MAX_SUPPORTED_WIRE_VERSION;
const MAX_SUPPORTED_SERVER_VERSION = WIRE_CONSTANTS.MAX_SUPPORTED_SERVER_VERSION;
const MIN_SUPPORTED_WIRE_VERSION = WIRE_CONSTANTS.MIN_SUPPORTED_WIRE_VERSION;
const MIN_SUPPORTED_SERVER_VERSION = WIRE_CONSTANTS.MIN_SUPPORTED_SERVER_VERSION;
let AUTH_PROVIDERS;
function connect(options, callback) {
if (AUTH_PROVIDERS == null) {
AUTH_PROVIDERS = defaultAuthProviders(options.bson);
}
if (options.family !== void 0) {
makeConnection(options.family, options, (err, socket) => {
if (err) {
callback(err, socket); // in the error case, `socket` is the originating error event name
return;
}
performInitialHandshake(new Connection(socket, options), options, callback);
});
return;
}
return makeConnection(6, options, (err, ipv6Socket) => {
if (err) {
makeConnection(4, options, (err, ipv4Socket) => {
if (err) {
callback(err, ipv4Socket); // in the error case, `ipv4Socket` is the originating error event name
return;
}
performInitialHandshake(new Connection(ipv4Socket, options), options, callback);
});
return;
}
performInitialHandshake(new Connection(ipv6Socket, options), options, callback);
});
}
function getSaslSupportedMechs(options) {
if (!(options && options.credentials)) {
return {};
}
const credentials = options.credentials;
// TODO: revisit whether or not items like `options.user` and `options.dbName` should be checked here
const authMechanism = credentials.mechanism;
const authSource = credentials.source || options.dbName || 'admin';
const user = credentials.username || options.user;
if (typeof authMechanism === 'string' && authMechanism.toUpperCase() !== 'DEFAULT') {
return {};
}
if (!user) {
return {};
}
return { saslSupportedMechs: `${authSource}.${user}` };
}
function checkSupportedServer(ismaster, options) {
const serverVersionHighEnough =
ismaster &&
typeof ismaster.maxWireVersion === 'number' &&
ismaster.maxWireVersion >= MIN_SUPPORTED_WIRE_VERSION;
const serverVersionLowEnough =
ismaster &&
typeof ismaster.minWireVersion === 'number' &&
ismaster.minWireVersion <= MAX_SUPPORTED_WIRE_VERSION;
if (serverVersionHighEnough) {
if (serverVersionLowEnough) {
return null;
}
const message = `Server at ${options.host}:${options.port} reports minimum wire version ${
ismaster.minWireVersion
}, but this version of the Node.js Driver requires at most ${MAX_SUPPORTED_WIRE_VERSION} (MongoDB ${MAX_SUPPORTED_SERVER_VERSION})`;
return new MongoError(message);
}
const message = `Server at ${options.host}:${
options.port
} reports maximum wire version ${ismaster.maxWireVersion ||
0}, but this version of the Node.js Driver requires at least ${MIN_SUPPORTED_WIRE_VERSION} (MongoDB ${MIN_SUPPORTED_SERVER_VERSION})`;
return new MongoError(message);
}
function performInitialHandshake(conn, options, _callback) {
const callback = function(err, ret) {
if (err && conn) {
conn.destroy();
}
_callback(err, ret);
};
let compressors = [];
if (options.compression && options.compression.compressors) {
compressors = options.compression.compressors;
}
const handshakeDoc = Object.assign(
{
ismaster: true,
client: createClientInfo(options),
compression: compressors
},
getSaslSupportedMechs(options)
);
const start = new Date().getTime();
runCommand(conn, 'admin.$cmd', handshakeDoc, options, (err, ismaster) => {
if (err) {
callback(err, null);
return;
}
if (ismaster.ok === 0) {
callback(new MongoError(ismaster), null);
return;
}
const supportedServerErr = checkSupportedServer(ismaster, options);
if (supportedServerErr) {
callback(supportedServerErr, null);
return;
}
// resolve compression
if (ismaster.compression) {
const agreedCompressors = compressors.filter(
compressor => ismaster.compression.indexOf(compressor) !== -1
);
if (agreedCompressors.length) {
conn.agreedCompressor = agreedCompressors[0];
}
if (options.compression && options.compression.zlibCompressionLevel) {
conn.zlibCompressionLevel = options.compression.zlibCompressionLevel;
}
}
// NOTE: This is metadata attached to the connection while porting away from
// handshake being done in the `Server` class. Likely, it should be
// relocated, or at very least restructured.
conn.ismaster = ismaster;
conn.lastIsMasterMS = new Date().getTime() - start;
const credentials = options.credentials;
if (!ismaster.arbiterOnly && credentials) {
credentials.resolveAuthMechanism(ismaster);
authenticate(conn, credentials, callback);
return;
}
callback(null, conn);
});
}
const LEGAL_SSL_SOCKET_OPTIONS = [
'pfx',
'key',
'passphrase',
'cert',
'ca',
'ciphers',
'NPNProtocols',
'ALPNProtocols',
'servername',
'ecdhCurve',
'secureProtocol',
'secureContext',
'session',
'minDHSize',
'crl',
'rejectUnauthorized'
];
function parseConnectOptions(family, options) {
const host = typeof options.host === 'string' ? options.host : 'localhost';
if (host.indexOf('/') !== -1) {
return { path: host };
}
const result = {
family,
host,
port: typeof options.port === 'number' ? options.port : 27017,
rejectUnauthorized: false
};
return result;
}
function parseSslOptions(family, options) {
const result = parseConnectOptions(family, options);
// Merge in valid SSL options
for (const name in options) {
if (options[name] != null && LEGAL_SSL_SOCKET_OPTIONS.indexOf(name) !== -1) {
result[name] = options[name];
}
}
// Override checkServerIdentity behavior
if (options.checkServerIdentity === false) {
// Skip the identiy check by retuning undefined as per node documents
// https://nodejs.org/api/tls.html#tls_tls_connect_options_callback
result.checkServerIdentity = function() {
return undefined;
};
} else if (typeof options.checkServerIdentity === 'function') {
result.checkServerIdentity = options.checkServerIdentity;
}
// Set default sni servername to be the same as host
if (result.servername == null) {
result.servername = result.host;
}
return result;
}
function makeConnection(family, options, _callback) {
const useSsl = typeof options.ssl === 'boolean' ? options.ssl : false;
const keepAlive = typeof options.keepAlive === 'boolean' ? options.keepAlive : true;
let keepAliveInitialDelay =
typeof options.keepAliveInitialDelay === 'number' ? options.keepAliveInitialDelay : 300000;
const noDelay = typeof options.noDelay === 'boolean' ? options.noDelay : true;
const connectionTimeout =
typeof options.connectionTimeout === 'number' ? options.connectionTimeout : 30000;
const socketTimeout = typeof options.socketTimeout === 'number' ? options.socketTimeout : 360000;
const rejectUnauthorized =
typeof options.rejectUnauthorized === 'boolean' ? options.rejectUnauthorized : true;
if (keepAliveInitialDelay > socketTimeout) {
keepAliveInitialDelay = Math.round(socketTimeout / 2);
}
let socket;
const callback = function(err, ret) {
if (err && socket) {
socket.destroy();
}
_callback(err, ret);
};
try {
if (useSsl) {
socket = tls.connect(parseSslOptions(family, options));
if (typeof socket.disableRenegotiation === 'function') {
socket.disableRenegotiation();
}
} else {
socket = net.createConnection(parseConnectOptions(family, options));
}
} catch (err) {
return callback(err);
}
socket.setKeepAlive(keepAlive, keepAliveInitialDelay);
socket.setTimeout(connectionTimeout);
socket.setNoDelay(noDelay);
const errorEvents = ['error', 'close', 'timeout', 'parseError', 'connect'];
function errorHandler(eventName) {
return err => {
errorEvents.forEach(event => socket.removeAllListeners(event));
socket.removeListener('connect', connectHandler);
callback(connectionFailureError(eventName, err), eventName);
};
}
function connectHandler() {
errorEvents.forEach(event => socket.removeAllListeners(event));
if (socket.authorizationError && rejectUnauthorized) {
return callback(socket.authorizationError);
}
socket.setTimeout(socketTimeout);
callback(null, socket);
}
socket.once('error', errorHandler('error'));
socket.once('close', errorHandler('close'));
socket.once('timeout', errorHandler('timeout'));
socket.once('parseError', errorHandler('parseError'));
socket.once('connect', connectHandler);
}
const CONNECTION_ERROR_EVENTS = ['error', 'close', 'timeout', 'parseError'];
function runCommand(conn, ns, command, options, callback) {
if (typeof options === 'function') (callback = options), (options = {});
const socketTimeout = typeof options.socketTimeout === 'number' ? options.socketTimeout : 360000;
const bson = conn.options.bson;
const query = new Query(bson, ns, command, {
numberToSkip: 0,
numberToReturn: 1
});
function errorHandler(err) {
conn.resetSocketTimeout();
CONNECTION_ERROR_EVENTS.forEach(eventName => conn.removeListener(eventName, errorHandler));
conn.removeListener('message', messageHandler);
callback(err, null);
}
function messageHandler(msg) {
if (msg.responseTo !== query.requestId) {
return;
}
conn.resetSocketTimeout();
CONNECTION_ERROR_EVENTS.forEach(eventName => conn.removeListener(eventName, errorHandler));
conn.removeListener('message', messageHandler);
msg.parse({ promoteValues: true });
callback(null, msg.documents[0]);
}
conn.setSocketTimeout(socketTimeout);
CONNECTION_ERROR_EVENTS.forEach(eventName => conn.once(eventName, errorHandler));
conn.on('message', messageHandler);
conn.write(query.toBin());
}
function authenticate(conn, credentials, callback) {
const mechanism = credentials.mechanism;
if (!AUTH_PROVIDERS[mechanism]) {
callback(new MongoError(`authMechanism '${mechanism}' not supported`));
return;
}
const provider = AUTH_PROVIDERS[mechanism];
provider.auth(runCommand, [conn], credentials, err => {
if (err) return callback(err);
callback(null, conn);
});
}
function connectionFailureError(type, err) {
switch (type) {
case 'error':
return new MongoNetworkError(err);
case 'timeout':
return new MongoNetworkError(`connection timed out`);
case 'close':
return new MongoNetworkError(`connection closed`);
default:
return new MongoNetworkError(`unknown network error`);
}
}
module.exports = connect;
+406 -587
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+219
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@@ -0,0 +1,219 @@
'use strict';
// Implementation of OP_MSG spec:
// https://github.com/mongodb/specifications/blob/master/source/message/OP_MSG.rst
//
// struct Section {
// uint8 payloadType;
// union payload {
// document document; // payloadType == 0
// struct sequence { // payloadType == 1
// int32 size;
// cstring identifier;
// document* documents;
// };
// };
// };
// struct OP_MSG {
// struct MsgHeader {
// int32 messageLength;
// int32 requestID;
// int32 responseTo;
// int32 opCode = 2013;
// };
// uint32 flagBits;
// Section+ sections;
// [uint32 checksum;]
// };
const opcodes = require('../wireprotocol/shared').opcodes;
const databaseNamespace = require('../wireprotocol/shared').databaseNamespace;
const ReadPreference = require('../topologies/read_preference');
// Incrementing request id
let _requestId = 0;
// Msg Flags
const OPTS_CHECKSUM_PRESENT = 1;
const OPTS_MORE_TO_COME = 2;
const OPTS_EXHAUST_ALLOWED = 1 << 16;
class Msg {
constructor(bson, ns, command, options) {
// Basic options needed to be passed in
if (command == null) throw new Error('query must be specified for query');
// Basic options
this.bson = bson;
this.ns = ns;
this.command = command;
this.command.$db = databaseNamespace(ns);
if (options.readPreference && options.readPreference.mode !== ReadPreference.PRIMARY) {
this.command.$readPreference = options.readPreference.toJSON();
}
// Ensure empty options
this.options = options || {};
// Additional options
this.requestId = Msg.getRequestId();
// Serialization option
this.serializeFunctions =
typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
this.ignoreUndefined =
typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : false;
this.checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false;
this.maxBsonSize = options.maxBsonSize || 1024 * 1024 * 16;
// flags
this.checksumPresent = false;
this.moreToCome = options.moreToCome || false;
this.exhaustAllowed = false;
}
toBin() {
const buffers = [];
let flags = 0;
if (this.checksumPresent) {
flags |= OPTS_CHECKSUM_PRESENT;
}
if (this.moreToCome) {
flags |= OPTS_MORE_TO_COME;
}
if (this.exhaustAllowed) {
flags |= OPTS_EXHAUST_ALLOWED;
}
const header = new Buffer(
4 * 4 + // Header
4 // Flags
);
buffers.push(header);
let totalLength = header.length;
const command = this.command;
totalLength += this.makeDocumentSegment(buffers, command);
header.writeInt32LE(totalLength, 0); // messageLength
header.writeInt32LE(this.requestId, 4); // requestID
header.writeInt32LE(0, 8); // responseTo
header.writeInt32LE(opcodes.OP_MSG, 12); // opCode
header.writeUInt32LE(flags, 16); // flags
return buffers;
}
makeDocumentSegment(buffers, document) {
const payloadTypeBuffer = new Buffer(1);
payloadTypeBuffer[0] = 0;
const documentBuffer = this.serializeBson(document);
buffers.push(payloadTypeBuffer);
buffers.push(documentBuffer);
return payloadTypeBuffer.length + documentBuffer.length;
}
serializeBson(document) {
return this.bson.serialize(document, {
checkKeys: this.checkKeys,
serializeFunctions: this.serializeFunctions,
ignoreUndefined: this.ignoreUndefined
});
}
}
Msg.getRequestId = function() {
return ++_requestId;
};
class BinMsg {
constructor(bson, message, msgHeader, msgBody, opts) {
opts = opts || { promoteLongs: true, promoteValues: true, promoteBuffers: false };
this.parsed = false;
this.raw = message;
this.data = msgBody;
this.bson = bson;
this.opts = opts;
// Read the message header
this.length = msgHeader.length;
this.requestId = msgHeader.requestId;
this.responseTo = msgHeader.responseTo;
this.opCode = msgHeader.opCode;
this.fromCompressed = msgHeader.fromCompressed;
// Read response flags
this.responseFlags = msgBody.readInt32LE(0);
this.checksumPresent = (this.responseFlags & OPTS_CHECKSUM_PRESENT) !== 0;
this.moreToCome = (this.responseFlags & OPTS_MORE_TO_COME) !== 0;
this.exhaustAllowed = (this.responseFlags & OPTS_EXHAUST_ALLOWED) !== 0;
this.promoteLongs = typeof opts.promoteLongs === 'boolean' ? opts.promoteLongs : true;
this.promoteValues = typeof opts.promoteValues === 'boolean' ? opts.promoteValues : true;
this.promoteBuffers = typeof opts.promoteBuffers === 'boolean' ? opts.promoteBuffers : false;
this.documents = [];
}
isParsed() {
return this.parsed;
}
parse(options) {
// Don't parse again if not needed
if (this.parsed) return;
options = options || {};
this.index = 4;
// Allow the return of raw documents instead of parsing
const raw = options.raw || false;
const documentsReturnedIn = options.documentsReturnedIn || null;
const promoteLongs =
typeof options.promoteLongs === 'boolean' ? options.promoteLongs : this.opts.promoteLongs;
const promoteValues =
typeof options.promoteValues === 'boolean' ? options.promoteValues : this.opts.promoteValues;
const promoteBuffers =
typeof options.promoteBuffers === 'boolean'
? options.promoteBuffers
: this.opts.promoteBuffers;
// Set up the options
const _options = {
promoteLongs: promoteLongs,
promoteValues: promoteValues,
promoteBuffers: promoteBuffers
};
while (this.index < this.data.length) {
const payloadType = this.data.readUInt8(this.index++);
if (payloadType === 1) {
console.error('TYPE 1');
} else if (payloadType === 0) {
const bsonSize = this.data.readUInt32LE(this.index);
const bin = this.data.slice(this.index, this.index + bsonSize);
this.documents.push(raw ? bin : this.bson.deserialize(bin, _options));
this.index += bsonSize;
}
}
if (this.documents.length === 1 && documentsReturnedIn != null && raw) {
const fieldsAsRaw = {};
fieldsAsRaw[documentsReturnedIn] = true;
_options.fieldsAsRaw = fieldsAsRaw;
const doc = this.bson.deserialize(this.documents[0], _options);
this.documents = [doc];
}
this.parsed = true;
}
}
module.exports = { Msg, BinMsg };
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+14 -70
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@@ -1,71 +1,17 @@
'use strict';
var f = require('util').format,
require_optional = require('require_optional');
const require_optional = require('require_optional');
// Set property function
var setProperty = function(obj, prop, flag, values) {
Object.defineProperty(obj, prop.name, {
enumerable: true,
set: function(value) {
if (typeof value !== 'boolean') throw new Error(f('%s required a boolean', prop.name));
// Flip the bit to 1
if (value === true) values.flags |= flag;
// Flip the bit to 0 if it's set, otherwise ignore
if (value === false && (values.flags & flag) === flag) values.flags ^= flag;
prop.value = value;
},
get: function() {
return prop.value;
}
});
};
// Set property function
var getProperty = function(obj, propName, fieldName, values, func) {
Object.defineProperty(obj, propName, {
enumerable: true,
get: function() {
// Not parsed yet, parse it
if (values[fieldName] == null && obj.isParsed && !obj.isParsed()) {
obj.parse();
}
// Do we have a post processing function
if (typeof func === 'function') return func(values[fieldName]);
// Return raw value
return values[fieldName];
}
});
};
// Set simple property
var getSingleProperty = function(obj, name, value) {
Object.defineProperty(obj, name, {
enumerable: true,
get: function() {
return value;
}
});
};
// Shallow copy
var copy = function(fObj, tObj) {
tObj = tObj || {};
for (var name in fObj) tObj[name] = fObj[name];
return tObj;
};
var debugOptions = function(debugFields, options) {
function debugOptions(debugFields, options) {
var finaloptions = {};
debugFields.forEach(function(n) {
finaloptions[n] = options[n];
});
return finaloptions;
};
}
var retrieveBSON = function() {
function retrieveBSON() {
var BSON = require('bson');
BSON.native = false;
@@ -78,17 +24,17 @@ var retrieveBSON = function() {
} catch (err) {} // eslint-disable-line
return BSON;
};
}
// Throw an error if an attempt to use Snappy is made when Snappy is not installed
var noSnappyWarning = function() {
function noSnappyWarning() {
throw new Error(
'Attempted to use Snappy compression, but Snappy is not installed. Install or disable Snappy compression and try again.'
);
};
}
// Facilitate loading Snappy optionally
var retrieveSnappy = function() {
function retrieveSnappy() {
var snappy = null;
try {
snappy = require_optional('snappy');
@@ -102,12 +48,10 @@ var retrieveSnappy = function() {
};
}
return snappy;
};
}
exports.setProperty = setProperty;
exports.getProperty = getProperty;
exports.getSingleProperty = getSingleProperty;
exports.copy = copy;
exports.debugOptions = debugOptions;
exports.retrieveBSON = retrieveBSON;
exports.retrieveSnappy = retrieveSnappy;
module.exports = {
debugOptions,
retrieveBSON,
retrieveSnappy
};