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Bug 805466 - Remove old MozUpdater-i folders in /tmp in PostUpdate. r=bbondy

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This commit is contained in:
Adri Hilviu 2012-10-31 16:32:14 -04:00
parent b6f3486ddb
commit 0bf9cbbfa2
1 changed files with 28 additions and 1 deletions
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29
toolkit/mozapps/update/nsUpdateService.js
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@ -759,7 +759,34 @@ function cleanUpMozUpdaterDirs() {
var tmpDir = Components.classes["@mozilla.org/file/directory_service;1"].
getService(Components.interfaces.nsIProperties).
get("TmpD", Components.interfaces.nsIFile);
// All temp unique subfolders are inside MozUpdater, delete it recursively.
// We used to store MozUpdater-i folders directly inside the temp directory.
// We need to cleanup these directories if we detect that they still exist.
// To check if they still exist, we simply check for MozUpdater-1.
var mozUpdaterDir1 = tmpDir.clone();
mozUpdaterDir1.append("MozUpdater-1");
// Only try to delete the left over folders in "$Temp/MozUpdater-i/*" if
// MozUpdater-1 exists.
if (mozUpdaterDir1.exists()) {
LOG("cleanUpMozUpdaterDirs - Cleaning top level MozUpdater-i folders");
let i = 0;
let dirEntries = tmpDir.directoryEntries;
while (dirEntries.hasMoreElements() && i < 10) {
let file = dirEntries.getNext().QueryInterface(Components.interfaces.nsILocalFile);
if (file.leafName.startsWith("MozUpdater-") && file.leafName != "MozUpdater-1") {
file.remove(true);
i++;
}
}
// If you enumerate the whole temp directory and the count of deleted
// items is less than 10, then delete MozUpdate-1.
if (i < 10) {
mozUpdaterDir1.remove(true);
}
}
// If we reach here, we simply need to clean the MozUpdater folder. In our
// new way of storing these files, the unique subfolders are inside MozUpdater
var mozUpdaterDir = tmpDir.clone();
mozUpdaterDir.append("MozUpdater");
if (mozUpdaterDir.exists()) {