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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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3
CmdLine/Seek.hs
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@ -279,6 +279,7 @@ withKeyOptions' ko auto mkkeyaction fallbackaction worktreeitems = do
void Annex.Branch.update
(l, cleanup) <- inRepo $ LsTree.lsTree
LsTree.LsTreeRecursive
(LsTree.LsTreeLong False)
Annex.Branch.fullname
let getk f = fmap (,f) (locationLogFileKey config f)
let discard reader = reader >>= \case
@ -301,7 +302,7 @@ withKeyOptions' ko auto mkkeyaction fallbackaction worktreeitems = do
runbranchkeys bs = do
keyaction <- mkkeyaction
forM_ bs $ \b -> do
(l, cleanup) <- inRepo $ LsTree.lsTree LsTree.LsTreeRecursive b
(l, cleanup) <- inRepo $ LsTree.lsTree LsTree.LsTreeRecursive (LsTree.LsTreeLong False) b
forM_ l $ \i -> catKey (LsTree.sha i) >>= \case
Just k ->
let bfp = mkActionItem (BranchFilePath b (LsTree.file i), k)