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storage/dotgit: search for incoming dir only once #935
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Search for incoming object directory was done once each time objects were accessed. This means a ReadDir of the objects path that is expensive. Now incoming directory is searched the first time an object is accessed and its name kept in DotGit to be reused. Signed-off-by: Javi Fontan <jfontan@gmail.com>
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@noxora, can you check if this change is compatible with pre-commit hook? |
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I do not see why this would not be compatible, it appears to be a solid change. |
ajnavarro
approved these changes
Aug 27, 2018
erizocosmico
approved these changes
Aug 27, 2018
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I think new incoming directories can appear in subsequent calls? |
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@smola, yes, that can happen if this is the use case.
While this is possible I don't think it's the common usage. Most probably go-git will be used inside the pre hook.
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kuba--
reviewed
Aug 27, 2018
storage/filesystem/dotgit/dotgit.go
Outdated
| directoryContents, err := d.fs.ReadDir(objectsPath) | ||
| if err == nil { | ||
| for _, file := range directoryContents { | ||
| if strings.Split(file.Name(), "-")[0] == "incoming" && file.IsDir() { |
There was a problem hiding this comment.
Is it the same as strings.HasPrefix(file.Name(), "incoming")
Also reformatted function comment and fixed some typos. Signed-off-by: Javi Fontan <jfontan@gmail.com>
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@jfontan I thought similarly, it is possible that it could change, but if it is being used to write a hook, it shouldn't. However, if we were to treat this as volatile (which it could be, in some uncommon use cases) then this would be problematic. |
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Search for incoming object directory was done once each time objects were accessed. This means a ReadDir of the objects path that is expensive. Now incoming directory is searched the first time an object is accessed and its name kept in DotGit to be reused.
This has the drawback that if the incoming object directory is created after the repo is opened it won't be found.
Related to #887