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db/update/Walk: add code comments

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This commit is contained in:
Max Kellermann 2020-10-28 14:23:01 +01:00
parent ecaa51e322
commit ee802867df
1 changed files with 4 additions and 0 deletions
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4
src/db/update/Walk.cxx
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@ -94,12 +94,16 @@ UpdateWalk::PurgeDeletedFromDirectory(Directory &directory) noexcept
{ {
directory.ForEachChildSafe([&](Directory &child){ directory.ForEachChildSafe([&](Directory &child){
if (child.IsMount()) if (child.IsMount())
/* mount points are always preserved */
return; return;
if (DirectoryExists(storage, child) && if (DirectoryExists(storage, child) &&
child.IsPluginAvailable()) child.IsPluginAvailable())
return; return;
/* the directory was deleted (or the plugin which
handles this "virtual" directory is unavailable) */
editor.LockDeleteDirectory(&child); editor.LockDeleteDirectory(&child);
modified = true; modified = true;