From: Duy Nguyen <pclouds@gmail.com>
Date: Tue, 15 Dec 2015 11:17:14 GMT
Subject: Re: update index mtime etc metadata
Message-ID: <CACsJy8DUxBxQJxe0RzJAs7oeu0FbVhEF3OZFpHNp==1DD_Ht4w@mail.gmail.com>
In-Reply-To: <20151214204429.GA31013@kitenet.net>

On Tue, Dec 15, 2015 at 3:44 AM, Joey Hess <id@joeyh.name> wrote:
> Is there any available plumbing that can change the mtime etc metadata
> that is recorded in the index for a file, to user-provided values? Or,
> to force the current file stat metadata to be updated in the index?

I don't think there is a way. We probably should improve ls-files and
update-index to examine and update basically everything in the index..
But so far, nothing yet.

> I know, git update-index --refresh, but I have a case where that's too
> expensive. I'm using smudge filters; I know that the cleaned version of
> the file will be unchanged from what's in the index now and only the
> stat metadata will change, and so I want to avoid
> git update-index --refresh running the clean filter, which can
> be quite expensive for a large file.
>
> At the moment I don't see a way to do it other than using eg libgit2 to
> update the appropriate fields in the index structure.

Yeah. I see libgit2 has a haskell binding, probably best for you.
-- 
Duy