Support directory deletion #210
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src/volume_mgr.rs
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| .iter() | ||
| .find(|dir_info| { | ||
| // Subdirectory is already open. | ||
| dir_info.cluster == dir_entry.cluster |
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I think that if the directory you are deleting is already open, you shouldn't be able to delete it because it would leave a dangling entry.
src/volume_mgr.rs
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| let dir_idx = data.get_dir_by_id(directory)?; | ||
| let dir_info = &data.open_dirs[dir_idx]; | ||
| let volume_idx = data.get_volume_by_id(dir_info.raw_volume)?; | ||
| let parent_dir_info = data.open_dirs[dir_idx].clone(); |
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I don't recall needing to clone an entry for an open directory before (unless I'm forgetting about it). What's the reason for the clone as opposed to borrowing the entry, or referring to it by index? This is probably fine, it just gave me pause as I read it.
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This is only needed if we want to allow deletion of currently open directories, because I'm creating a new DirectoryInfo in a block and making it a borrow would require using some of the lifetime extension tricks, while the struct looked tiny enough that cloning seemed cleaner to do.
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Rebasing after #211 is merged should fix CI. |
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Fix #186.
The changes to the
Errorenum would be a breaking change. The new variant can either be only added, leaving behind a variant that will never be constructed or replaced.