Publish Nerbus source snapshot and build documentation
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const lib = require('../lib/explorer');
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const readline = require('readline');
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const deleteLockName = 'delete';
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const settings = require('../lib/settings');
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let lockCreated = false;
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let preserveClaimAddressNames = false;
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// exit function used to cleanup lock before finishing script
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function exit(mongoose, exitCode) {
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const db = require('../lib/database');
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// check if mongo was connected
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if (mongoose != null) {
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// check if this is a clean exit
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if (exitCode == 0) {
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// initialize the database
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db.initialize_data_startup(function() {
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// disconnect mongo connection
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mongoose.disconnect();
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// finish exit cleanup
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finishExit(db, exitCode);
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});
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} else {
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// disconnect mongo connection
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mongoose.disconnect();
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// finish exit cleanup
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finishExit(db, exitCode);
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}
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} else {
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// finish exit cleanup
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finishExit(db, exitCode);
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}
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}
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function finishExit(db, exitCode) {
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// always check for and remove the sync msg if exists
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db.remove_sync_message();
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// only remove delete lock if it was created in this session
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if (!lockCreated || lib.remove_lock(deleteLockName) == true) {
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// clean exit with previous exit code
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process.exit(exitCode);
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} else {
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// error removing lock
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process.exit(1);
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}
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}
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function drop_collection(mongoose, colName, cb) {
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// attempt to delete the collection
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mongoose.connection.db.dropCollection(colName).then((result) => {
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if (!result) {
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console.log(`Error: Unable to delete the ${colName} collection`);
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exit(mongoose, 1);
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} else
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return cb(true);
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}).catch((err) => {
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console.log(err);
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exit(mongoose, 1);
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});
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}
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function delete_prompt(cb) {
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preserve_claimaddress_prompt(function() {
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const rl = readline.createInterface({
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input: process.stdin,
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output: process.stdout
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});
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// Change the delete prompt based on whether this is a reindex or regular delete
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if (process.argv[2] != null && process.argv[2] == 'reindex') {
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console.log('You are about to delete all data from the entire eIquidus database');
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if (preserveClaimAddressNames)
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console.log('(claim address name data will not be deleted)');
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console.log('and resync from the genesis block.');
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} else {
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console.log('You are about to delete all data from the entire eIquidus database.');
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if (preserveClaimAddressNames)
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console.log('(claim address name data will not be deleted)');
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}
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// prompt for deleting explorer database
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rl.question(`${settings.localization.are_you_sure}: `, function (deleteAnswer) {
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// stop prompting
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rl.close();
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// determine if the explorer database should be deleted
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switch ((deleteAnswer == null ? '' : deleteAnswer).toLowerCase()) {
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case settings.localization.short_yes:
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case settings.localization.long_yes:
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return cb(true);
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break;
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default:
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return cb(false);
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}
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});
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});
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}
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function preserve_claimaddress_prompt(cb) {
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const ClaimAddress = require('../models/claimaddress');
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// check how many claim address records there are
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ClaimAddress.find({}).countDocuments().then((count) => {
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// display an additional prompt in the event the claimaddress collection has data
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if (count > 0) {
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console.log(`The current database has ${count} custom claim address names`);
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console.log('Would you like to preserve this data?');
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const rl = readline.createInterface({
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input: process.stdin,
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output: process.stdout
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});
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// prompt for deleting claim address data
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rl.question('y = keep claim address data, n = delete claim address data [y/n]: ', function (preserveClaimAddresses) {
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// stop prompting
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rl.close();
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// determine if the claim address data should be preserved
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switch (preserveClaimAddresses) {
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case 'y':
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case 'Y':
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case 'yes':
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case 'YES':
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case 'Yes':
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preserveClaimAddressNames = true;
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console.log('Claim address name data will be saved' + '\n');
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break;
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default:
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console.log('Claim address name data will be deleted' + '\n');
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}
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return cb();
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});
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} else
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return cb();
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});
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}
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// check if the "delete database" process is already running
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if (lib.is_locked([deleteLockName]) == false) {
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// create a new delete lock before checking the rest of the locks to minimize problems with running scripts at the same time
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lib.create_lock(deleteLockName);
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// ensure the lock will be deleted on exit
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lockCreated = true;
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var lock_list = ['backup', 'restore', 'markets', 'peers', 'masternodes', 'plugin'];
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// do not check the index lock if this is called from the reindex process
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if (process.argv[2] == null || process.argv[2] != 'reindex') {
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lock_list.push('index');
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}
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// check all other possible locks since database deletion should not run at the same time that data is being changed
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if (lib.is_locked(lock_list) == false) {
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// all tests passed. OK to run delete
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// suppress the pid message when doing a reindex
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if (process.argv[2] == null || process.argv[2] != 'reindex')
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console.log(`${settings.localization.script_launched }: ${process.pid}`);
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const mongoose = require('mongoose');
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const dbString = `mongodb://${encodeURIComponent(settings.dbsettings.user)}:${encodeURIComponent(settings.dbsettings.password)}@${settings.dbsettings.address}:${settings.dbsettings.port}/${settings.dbsettings.database}`;
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console.log('Connecting to database..');
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mongoose.set('strictQuery', true);
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mongoose.set('updatePipeline', true);
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// connect to mongo database
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mongoose.connect(dbString).then(() => {
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console.log('Database connection successful' + '\n');
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// prompt for database delete
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delete_prompt(function(continue_process) {
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if (continue_process) {
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// get the list of collections
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mongoose.connection.db.listCollections().toArray().then((collections) => {
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// check if there are any collections
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if (collections.length > 0) {
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var counter = 0;
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// loop through all collections
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collections.forEach((collection) => {
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// check if this is the claim addres collection and that data is being preserved
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if (!preserveClaimAddressNames || collection.name != 'claimaddresses') {
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console.log(`Deleting ${collection.name}..`);
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// delete this collection
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drop_collection(mongoose, collection.name, function(retVal) {
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// check if the collection was successfully deleted
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if (retVal)
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counter++;
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// check if the last collection was deleted
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if (counter == collections.length) {
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// finish the delete process
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console.log('Finished deleting database');
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exit(mongoose, 0);
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}
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});
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} else {
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// skipped deleting of the claimaddresses collection
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counter++;
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// check if the last collection was deleted
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if (counter == collections.length) {
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// finish the delete process
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console.log('Finished deleting database');
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exit(mongoose, 0);
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}
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}
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});
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} else {
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// nothing to delete
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console.log('Nothing to delete, the database is already empty..');
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// finish the delete process
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exit(mongoose, 0);
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}
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}).catch((err) => {
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console.log('Error: Unable to list collections in database: %s', err);
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exit(mongoose, 1);
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});
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} else {
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console.log(`${settings.localization.process_aborted}. ${settings.localization.nothing_was_deleted}.`);
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exit(null, 2);
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}
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});
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}).catch((err) => {
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console.log('Error: Unable to connect to database: %s', err);
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exit(mongoose, 999);
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});
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} else {
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// another script process is currently running
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console.log("Delete aborted");
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exit(null, 2);
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}
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} else {
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// delete process is already running
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console.log("Delete aborted");
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exit(null, 2);
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}
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