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lookupkey = readlink $ basename?

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https://id.koumbit.net/anarcat 2015-02-13 15:33:54 +00:00 committed by admin
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to work around [[forum/original_filename_on_s3/]], i need to get the key from a file, and i'm not within the git-annex process. i know there's `git annex lookupkey $FILE`, but that incurs significant overhead because the whole git annex runtime needs to fire up. in my tests, this takes around 25ms on average.
could i optimise this by simply doing a `readlink` call on the git checkout? it sure looks like `readlink | basename` is all I really need, and that can probably be done below 10ms (4ms in my tests). how reliable are those links anyways, and is that what lookupkey does?
thanks. --[[anarcat]]