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remove some stale comments

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This commit is contained in:
ansuz 2019-08-14 17:32:30 +02:00
parent 1e2a6405d0
commit 9498669ffe
1 changed files with 7 additions and 11 deletions
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18
historyKeeper.js
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@ -710,15 +710,11 @@ module.exports.create = function (cfg) {
}).nThen(() => {
let msgCount = 0;
// XXX a lot of this logic is currently wrong
// we should have already sent the most up-to-date metadata (if it exists)
// TODO compute lastKnownHash in a manner such that it will always skip past the metadata line?
getHistoryAsync(ctx, channelName, lastKnownHash, false, (msg, readMore) => {
if (!msg) { return; }
msgCount++;
// check for the channel because it's the one thing that should
// always exist in "classic metadata"
// avoid sending the metadata message a second time
if (isMetadataMessage(msg) && metadata_cache[channelName]) { return readMore(); }
sendMsg(ctx, user, [0, HISTORY_KEEPER_ID, 'MSG', user.id, JSON.stringify(msg)], readMore);
}, (err) => {
@ -729,12 +725,8 @@ module.exports.create = function (cfg) {
return;
}
// If this is a new channel, we should store it in the new format
// as the first line in a dedicated metadata log, not in the channel
// XXX read this kind of metadata before writing it
const chan = ctx.channels[channelName];
// XXX check metadata message count too...
if (msgCount === 0 && !metadata_cache[channelName] && chan && chan.indexOf(user) > -1) {
var metadata = {};
metadata.channel = channelName;
@ -749,10 +741,14 @@ module.exports.create = function (cfg) {
}
metadata_cache[channelName] = metadata;
// new channels will always have their metadata written to a dedicated metadata log
// but any lines after the first which are not amendments in a particular format will be ignored.
// Thus we should be safe from race conditions here if just write metadata to the log as below...
// TODO validate this logic
// otherwise maybe we need to check that the metadata log is empty as well
store.writeMetadata(channelName, JSON.stringify(metadata), function (err) {
if (err) {
// XXX handle errors
return void console.error(err);
return void Log.error('HK_WRITE_METADATA');
}
});
sendMsg(ctx, user, [0, HISTORY_KEEPER_ID, 'MSG', user.id, JSON.stringify(metadata)]);