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add git ls-tree --long parser

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Not yet used, but allows getting the size of items in the tree fairly
cheaply.

I noticed that CmdLine.Seek uses ls-tree and the feeds the files into
another long-running process to check their size. That would be an
example of a place that might be sped up by using this. Although in that
particular case, it only needs to know the size of unlocked files, not
locked. And since enabling --long probably doubles the ls-tree runtime
or more, the overhead of using it there may outwweigh the benefit.
This commit is contained in:
Joey Hess 2021-03-23 12:44:29 -04:00
parent d89a9b0f78
commit a8b837aaef
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GPG key ID: DB12DB0FF05F8F38
13 changed files with 97 additions and 56 deletions
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Logs/Export.hs
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@ -204,5 +204,5 @@ getExportExcluded u = do
exportExcludedParser :: L.ByteString -> [Git.Tree.TreeItem]
exportExcludedParser = map Git.Tree.lsTreeItemToTreeItem
. rights
. map Git.LsTree.parseLsTree
. map (Git.LsTree.parseLsTree (Git.LsTree.LsTreeLong False))
. L.split (fromIntegral $ ord '\n')