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bug 430363: ignore remove commands when generating deltas for history so the deltas file on the server doesn't grow too large; r=thunder

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This commit is contained in:
Myk Melez 2008-06-11 10:40:24 -07:00
parent 482d745360
commit 4a8808e790
1 changed files with 18 additions and 0 deletions
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18
services/sync/modules/engines/history.js
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@ -10,6 +10,9 @@ Cu.import("resource://weave/engines.js");
Cu.import("resource://weave/syncCores.js");
Cu.import("resource://weave/stores.js");
Cu.import("resource://weave/trackers.js");
Cu.import("resource://weave/async.js");
Function.prototype.async = Async.sugar;
function HistoryEngine(pbeId) {
this._init(pbeId);
@ -59,6 +62,21 @@ HistorySyncCore.prototype = {
// the GUID, so the same sites will map to the same item (same
// GUID), without our intervention.
return false;
},
/**
* Determine the differences between two snapshots. This method overrides
* the one in its superclass so it can ignore removes, since removes don't
* matter for history (and would cause deltas to grow too large too fast).
*/
_detectUpdates: function HSC__detectUpdates(a, b) {
let self = yield;
this.__proto__.__proto__._detectUpdates.async(this, self.cb, a, b);
let cmds = yield;
cmds = cmds.filter(function (v) v.action != "remove");
self.done(cmds);
}
};
HistorySyncCore.prototype.__proto__ = new SyncCore();