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103 строки
2.8 KiB
103 строки
2.8 KiB
const startTime = Date.now();
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require('ep_etherpad-lite/node_modules/npm').load({}, (er, npm) => {
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const fs = require('fs');
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const ueberDB = require('ep_etherpad-lite/node_modules/ueberdb2');
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const settings = require('ep_etherpad-lite/node/utils/Settings');
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const log4js = require('ep_etherpad-lite/node_modules/log4js');
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const dbWrapperSettings = {
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cache: 0,
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writeInterval: 100,
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json: false, // data is already json encoded
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};
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const db = new ueberDB.database(settings.dbType, settings.dbSettings, dbWrapperSettings, log4js.getLogger('ueberDB'));
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const sqlFile = process.argv[2];
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// stop if the settings file is not set
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if (!sqlFile) {
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console.error('Use: node importSqlFile.js $SQLFILE');
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process.exit(1);
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}
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log('initializing db');
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db.init((err) => {
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// there was an error while initializing the database, output it and stop
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if (err) {
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console.error('ERROR: Problem while initializing the database');
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console.error(err.stack ? err.stack : err);
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process.exit(1);
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} else {
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log('done');
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log('open output file...');
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const lines = fs.readFileSync(sqlFile, 'utf8').split('\n');
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const count = lines.length;
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let keyNo = 0;
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process.stdout.write(`Start importing ${count} keys...\n`);
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lines.forEach((l) => {
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if (l.substr(0, 27) == 'REPLACE INTO store VALUES (') {
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const pos = l.indexOf("', '");
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const key = l.substr(28, pos - 28);
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let value = l.substr(pos + 3);
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value = value.substr(0, value.length - 2);
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console.log(`key: ${key} val: ${value}`);
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console.log(`unval: ${unescape(value)}`);
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db.set(key, unescape(value), null);
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keyNo++;
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if (keyNo % 1000 == 0) {
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process.stdout.write(` ${keyNo}/${count}\n`);
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}
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}
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});
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process.stdout.write('\n');
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process.stdout.write('done. waiting for db to finish transaction. depended on dbms this may take some time...\n');
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db.doShutdown(() => {
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log(`finished, imported ${keyNo} keys.`);
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process.exit(0);
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});
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}
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});
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});
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function log(str) {
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console.log(`${(Date.now() - startTime) / 1000}\t${str}`);
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}
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unescape = function (val) {
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// value is a string
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if (val.substr(0, 1) == "'") {
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val = val.substr(0, val.length - 1).substr(1);
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return val.replace(/\\[0nrbtZ\\'"]/g, (s) => {
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switch (s) {
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case '\\0': return '\0';
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case '\\n': return '\n';
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case '\\r': return '\r';
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case '\\b': return '\b';
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case '\\t': return '\t';
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case '\\Z': return '\x1a';
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default: return s.substr(1);
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}
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});
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}
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// value is a boolean or NULL
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if (val == 'NULL') {
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return null;
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}
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if (val == 'true') {
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return true;
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}
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if (val == 'false') {
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return false;
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}
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// value is a number
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return val;
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};
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