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all: Support syncing extended attributes (fixes #2698) (#8513)

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This adds support for syncing extended attributes on supported
filesystem on Linux, macOS, FreeBSD and NetBSD. Windows is currently
excluded because the APIs seem onerous and annoying and frankly the uses
cases seem few and far between. On Unixes this also covers ACLs as those
are stored as extended attributes.

Similar to ownership syncing this will optional & opt-in, which two
settings controlling the main behavior: one to "sync" xattrs (read &
write) and another one to "scan" xattrs (only read them so other devices
can "sync" them, but not apply any locally).

Co-authored-by: Tomasz Wilczyński <twilczynski@naver.com>
This commit is contained in:
Jakob Borg
2022-09-14 09:50:55 +02:00
committed by GitHub
co-authored by Tomasz Wilczyński
parent 8065cf7e97
commit 6cac308bcd
37 changed files with 2720 additions and 527 deletions
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gui/default/syncthing/folder/editFolderModalView.html
+39
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@@ -284,6 +284,45 @@
</p>
</div>
</div>
<div class="row">
<div class="col-md-6 form-group">
<p>
<label translate>Ownership</label>
&nbsp;<a href="{{docsURL('advanced/folder-sync-ownership')}}" target="_blank"><span class="fas fa-question-circle"></span>&nbsp;<span translate>Help</span></a>
</p>
<label>
<input type="checkbox" ng-disabled="currentFolder.type == 'sendonly' || currentFolder.type == 'receiveencrypted'" ng-model="currentFolder.syncOwnership" /> <span translate>Sync Ownership</span>
</label>
<p translate class="help-block">
Enables sending ownership information to other devices, and applying incoming ownership information. Typically requires running with elevated privileges.
</p>
<label>
<input type="checkbox" ng-disabled="currentFolder.type == 'receiveonly' || currentFolder.type == 'receiveencrypted' || currentFolder.syncOwnership" ng-checked="currentFolder.sendOwnership || currentFolder.syncOwnership" ng-model="currentFolder.sendOwnership" /> <span translate>Send Ownership</span>
</label>
<p translate class="help-block">
Enables sending ownership to other devices, but not applying incoming ownership information. This can have a significant performance impact. Always enabled when "Sync Ownership" is enabled.
</p>
</div>
<div class="col-md-6 form-group">
<p>
<label translate>Extended Attributes</label>
&nbsp;<a href="{{docsURL('advanced/folder-sync-xattrs')}}" target="_blank"><span class="fas fa-question-circle"></span>&nbsp;<span translate>Help</span></a>
</p>
<label>
<input type="checkbox" ng-disabled="currentFolder.type == 'sendonly' || currentFolder.type == 'receiveencrypted'" ng-model="currentFolder.syncXattrs" /> <span translate>Sync Extended Attributes</span>
</label>
<p translate class="help-block">
Enables sending extended attributes to other devices, and applying incoming extended attributes. May require running with elevated privileges.
</p>
<label>
<input type="checkbox" ng-disabled="currentFolder.type == 'receiveonly' || currentFolder.type == 'receiveencrypted' || currentFolder.syncXattrs" ng-checked="currentFolder.sendXattrs || currentFolder.syncXattrs" ng-model="currentFolder.sendXattrs" /> <span translate>Send Extended Attributes</span>
</label>
<p translate class="help-block">
Enables sending extended attributes to other devices, but not applying incoming extended attributes. This can have a significant performance impact. Always enabled when "Sync Extended Attributes" is enabled.
</p>
</div>
</div>
</div>
</div>
</form>