electron-main: Reindex the event index if it indicates that this is needed.

This commit is contained in:
Damir Jelić 2020-03-11 11:27:00 +01:00
parent 1dd7c168cf
commit 4b35086028

View file

@ -43,10 +43,19 @@ const Store = require('electron-store');
const fs = require('fs');
const afs = fs.promises;
let Seshat = null;
let seshatSupported = false;
let Seshat;
let SeshatRecovery;
let ReindexError;
const seshatPassphrase = "DEFAULT_PASSPHRASE";
try {
Seshat = require('matrix-seshat');
seshatModule = require('matrix-seshat');
Seshat = seshatModule.Seshat;
SeshatRecovery = seshatModule.SeshatRecovery;
ReindexError = seshatModule.ReindexError;
seshatSupported = true;
} catch (e) {
if (e.code === "MODULE_NOT_FOUND") {
console.log("Seshat isn't installed, event indexing is disabled.");
@ -349,19 +358,37 @@ ipcMain.on('seshat', async function(ev, payload) {
switch (payload.name) {
case 'supportsEventIndexing':
if (Seshat === null) ret = false;
else ret = true;
ret = seshatSupported;
break;
case 'initEventIndex':
if (eventIndex === null) {
try {
await afs.mkdir(eventStorePath, {recursive: true});
eventIndex = new Seshat(eventStorePath, {passphrase: "DEFAULT_PASSPHRASE"});
eventIndex = new Seshat(eventStorePath, {passphrase: seshatPassphrase});
} catch (e) {
if (e instanceof ReindexError) {
// If this is a reindex error, the index schema
// changed. Try to open the database in recovery mode,
// reindex the database and finally try to open the
// database again.
try {
recoveryIndex = new SeshatRecovery(eventStorePath, {
passphrase: seshatPassphrase
});
await recoveryIndex.reindex();
eventIndex = new Seshat(eventStorePath, {
passphrase: seshatPassphrase
});
} catch (e) {
sendError(payload.id, e);
return;
}
} else {
sendError(payload.id, e);
return;
}
}
}
break;