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Bug 972434 - Fix a dumb loop that mistakenly deletes all of the bookmarks backups. r=MattN

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This commit is contained in:
Marco Bonardo 2014-02-13 23:26:40 +01:00
parent a00fadcb27
commit 06cc604610
2 changed files with 137 additions and 72 deletions
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28
toolkit/components/places/PlacesBackups.jsm
View File

@ -309,27 +309,25 @@ this.PlacesBackups = {
let mostRecentBackupFile = yield this.getMostRecentBackup();
if (!aForceBackup) {
let numberOfBackupsToDelete = 0;
if (aMaxBackups !== undefined && aMaxBackups > -1) {
let backupFiles = yield this.getBackupFiles();
numberOfBackupsToDelete = backupFiles.length - aMaxBackups;
let backupFiles = yield this.getBackupFiles();
// If there are backups, limit them to aMaxBackups, if requested.
if (backupFiles.length > 0 && typeof aMaxBackups == "number" &&
aMaxBackups > -1 && backupFiles.length >= aMaxBackups) {
let numberOfBackupsToDelete = backupFiles.length - aMaxBackups;
// If we don't have today's backup, remove one more so that
// the total backups after this operation does not exceed the
// number specified in the pref.
if (!mostRecentBackupFile ||
!this._isFilenameWithSameDate(OS.Path.basename(mostRecentBackupFile),
newBackupFilename))
if (!this._isFilenameWithSameDate(OS.Path.basename(mostRecentBackupFile),
newBackupFilename)) {
numberOfBackupsToDelete++;
}
while (numberOfBackupsToDelete--) {
this._entries.pop();
if (!this._backupFiles) {
yield this.getBackupFiles();
}
let oldestBackup = this._backupFiles.pop();
yield OS.File.remove(oldestBackup);
while (numberOfBackupsToDelete--) {
this._entries.pop();
let oldestBackup = this._backupFiles.pop();
yield OS.File.remove(oldestBackup);
}
}
// Do nothing if we already have this backup or we don't want backups.

181
toolkit/components/places/tests/bookmarks/test_466303-json-remove-backups.js
View File

@ -4,63 +4,130 @@
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
const NUMBER_OF_BACKUPS = 1;
// Since PlacesBackups.getbackupFiles() is a lazy getter, these tests must
// run in the given order, to avoid making it out-of-sync.
add_task(function check_max_backups_is_respected() {
// Get bookmarkBackups directory
let backupFolder = yield PlacesBackups.getBackupFolder();
// Create an html dummy backup in the past.
let htmlPath = OS.Path.join(backupFolder, "bookmarks-2008-01-01.html");
let htmlFile = yield OS.File.open(htmlPath, { truncate: true });
htmlFile.close();
do_check_true(yield OS.File.exists(htmlPath));
// Create a json dummy backup in the past.
let jsonPath = OS.Path.join(backupFolder, "bookmarks-2008-01-31.json");
let jsonFile = yield OS.File.open(jsonPath, { truncate: true });
jsonFile.close();
do_check_true(yield OS.File.exists(jsonPath));
// Export bookmarks to JSON.
// Allow 2 backups, the older one should be removed.
yield PlacesBackups.create(2);
let backupFilename = PlacesBackups.getFilenameForDate();
let re = new RegExp("^" + backupFilename.replace(/\.json/, "") + "(_[0-9]+){0,1}\.json$");
let count = 0;
let lastBackupPath = null;
let iterator = new OS.File.DirectoryIterator(backupFolder);
try {
yield iterator.forEach(aEntry => {
count++;
if (aEntry.name.match(re))
lastBackupPath = aEntry.path;
});
} finally {
iterator.close();
}
do_check_eq(count, 2);
do_check_neq(lastBackupPath, null);
do_check_false(yield OS.File.exists(htmlPath));
do_check_true(yield OS.File.exists(jsonPath));
});
add_task(function check_max_backups_greater_than_backups() {
// Get bookmarkBackups directory
let backupFolder = yield PlacesBackups.getBackupFolder();
// Export bookmarks to JSON.
// Allow 3 backups, none should be removed.
yield PlacesBackups.create(3);
let backupFilename = PlacesBackups.getFilenameForDate();
let re = new RegExp("^" + backupFilename.replace(/\.json/, "") + "(_[0-9]+){0,1}\.json$");
let count = 0;
let lastBackupPath = null;
let iterator = new OS.File.DirectoryIterator(backupFolder);
try {
yield iterator.forEach(aEntry => {
count++;
if (aEntry.name.match(re))
lastBackupPath = aEntry.path;
});
} finally {
iterator.close();
}
do_check_eq(count, 2);
do_check_neq(lastBackupPath, null);
});
add_task(function check_max_backups_null() {
// Get bookmarkBackups directory
let backupFolder = yield PlacesBackups.getBackupFolder();
// Export bookmarks to JSON.
// Allow infinite backups, none should be removed, a new one is not created
// since one for today already exists.
yield PlacesBackups.create(null);
let backupFilename = PlacesBackups.getFilenameForDate();
let re = new RegExp("^" + backupFilename.replace(/\.json/, "") + "(_[0-9]+){0,1}\.json$");
let count = 0;
let lastBackupPath = null;
let iterator = new OS.File.DirectoryIterator(backupFolder);
try {
yield iterator.forEach(aEntry => {
count++;
if (aEntry.name.match(re))
lastBackupPath = aEntry.path;
});
} finally {
iterator.close();
}
do_check_eq(count, 2);
do_check_neq(lastBackupPath, null);
});
add_task(function check_max_backups_undefined() {
// Get bookmarkBackups directory
let backupFolder = yield PlacesBackups.getBackupFolder();
// Export bookmarks to JSON.
// Allow infinite backups, none should be removed, a new one is not created
// since one for today already exists.
yield PlacesBackups.create();
let backupFilename = PlacesBackups.getFilenameForDate();
let re = new RegExp("^" + backupFilename.replace(/\.json/, "") + "(_[0-9]+){0,1}\.json$");
let count = 0;
let lastBackupPath = null;
let iterator = new OS.File.DirectoryIterator(backupFolder);
try {
yield iterator.forEach(aEntry => {
count++;
if (aEntry.name.match(re))
lastBackupPath = aEntry.path;
});
} finally {
iterator.close();
}
do_check_eq(count, 2);
do_check_neq(lastBackupPath, null);
});
function run_test() {
do_test_pending();
Task.spawn(function() {
// Get bookmarkBackups directory
let backupFolder = yield PlacesBackups.getBackupFolder();
let bookmarksBackupDir = new FileUtils.File(backupFolder);
// Create an html dummy backup in the past
var htmlBackupFile = bookmarksBackupDir.clone();
htmlBackupFile.append("bookmarks-2008-01-01.html");
if (htmlBackupFile.exists())
htmlBackupFile.remove(false);
do_check_false(htmlBackupFile.exists());
htmlBackupFile.create(Ci.nsILocalFile.NORMAL_FILE_TYPE, 0600);
do_check_true(htmlBackupFile.exists());
// Create a json dummy backup in the past
var jsonBackupFile = bookmarksBackupDir.clone();
jsonBackupFile.append("bookmarks-2008-01-31.json");
if (jsonBackupFile.exists())
jsonBackupFile.remove(false);
do_check_false(jsonBackupFile.exists());
jsonBackupFile.create(Ci.nsILocalFile.NORMAL_FILE_TYPE, 0600);
do_check_true(jsonBackupFile.exists());
// Export bookmarks to JSON.
var backupFilename = PlacesBackups.getFilenameForDate();
var rx = new RegExp("^" + backupFilename.replace(/\.json/, "") + "(_[0-9]+){0,1}\.json$");
var files = bookmarksBackupDir.directoryEntries;
var entry;
while (files.hasMoreElements()) {
entry = files.getNext().QueryInterface(Ci.nsIFile);
if (entry.leafName.match(rx))
entry.remove(false);
}
yield PlacesBackups.create(NUMBER_OF_BACKUPS);
files = bookmarksBackupDir.directoryEntries;
while (files.hasMoreElements()) {
entry = files.getNext().QueryInterface(Ci.nsIFile);
if (entry.leafName.match(rx))
lastBackupFile = entry;
}
do_check_true(lastBackupFile.exists());
// Check that last backup has been retained
do_check_false(htmlBackupFile.exists());
do_check_false(jsonBackupFile.exists());
do_check_true(lastBackupFile.exists());
// cleanup
lastBackupFile.remove(false);
do_check_false(lastBackupFile.exists());
do_test_finished();
});
run_next_test();
}