104 lines
3.2 KiB
JavaScript
104 lines
3.2 KiB
JavaScript
'use strict';
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/*
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* This is a debug tool. It checks all revisions for data corruption
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*/
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// As of v14, Node.js does not exit when there is an unhandled Promise rejection. Convert an
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// unhandled rejection into an uncaught exception, which does cause Node.js to exit.
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process.on('unhandledRejection', (err) => { throw err; });
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if (process.argv.length !== 3) throw new Error('Use: node src/bin/checkPadDeltas.js $PADID');
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// get the padID
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const padId = process.argv[2];
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const expect = require('../tests/frontend/lib/expect');
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const diff = require('diff');
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(async () => {
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// initialize database
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require('../node/utils/Settings');
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const db = require('../node/db/DB');
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await db.init();
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// load modules
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const Changeset = require('../static/js/Changeset');
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const padManager = require('../node/db/PadManager');
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const exists = await padManager.doesPadExists(padId);
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if (!exists) throw new Error('Pad does not exist');
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// get the pad
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const pad = await padManager.getPad(padId);
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// create an array with key revisions
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// key revisions always save the full pad atext
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const head = pad.getHeadRevisionNumber();
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const keyRevisions = [];
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for (let i = 0; i < head; i += 100) {
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keyRevisions.push(i);
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}
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// create an array with all revisions
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const revisions = [];
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for (let i = 0; i <= head; i++) {
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revisions.push(i);
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}
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let atext = Changeset.makeAText('\n');
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// run through all revisions
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for (const revNum of revisions) {
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// console.log('Fetching', revNum)
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const revision = await db.get(`pad:${padId}:revs:${revNum}`);
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// check if there is a atext in the keyRevisions
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const {meta: {atext: revAtext} = {}} = revision || {};
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if (~keyRevisions.indexOf(revNum) && revAtext == null) {
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console.error(`No atext in key revision ${revNum}`);
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continue;
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}
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// try glue everything together
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try {
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// console.log("check revision ", revNum);
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const cs = revision.changeset;
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atext = Changeset.applyToAText(cs, atext, pad.pool);
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} catch (e) {
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console.error(`Bad changeset at revision ${revNum} - ${e.message}`);
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continue;
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}
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// check things are working properly
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if (~keyRevisions.indexOf(revNum)) {
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try {
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expect(revision.meta.atext.text).to.eql(atext.text);
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expect(revision.meta.atext.attribs).to.eql(atext.attribs);
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} catch (e) {
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console.error(`Atext in key revision ${revNum} doesn't match computed one.`);
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console.log(diff.diffChars(atext.text, revision.meta.atext.text).map((op) => {
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if (!op.added && !op.removed) op.value = op.value.length;
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return op;
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}));
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// console.error(e)
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// console.log('KeyRev. :', revision.meta.atext)
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// console.log('Computed:', atext)
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continue;
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}
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}
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}
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// check final text is right...
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if (pad.atext.text === atext.text) {
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console.log('ok');
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} else {
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console.error('Pad AText doesn\'t match computed one! (Computed ',
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atext.text.length, ', db', pad.atext.text.length, ')');
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console.log(diff.diffChars(atext.text, pad.atext.text).map((op) => {
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if (!op.added && !op.removed) {
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op.value = op.value.length;
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return op;
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}
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}));
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}
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})();
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