# update index mtime etc metadata 2 messages from 2015-12-14 to 2015-12-15. Participants: Joey Hess, Duy Nguyen. Thread: https://gitlist.dev/t/40996 ## Joey Hess, 2015-12-14 20:44 Subject: update index mtime etc metadata Message-ID: <20151214204429.GA31013@kitenet.net> URL: https://gitlist.dev/e/20151214204429.GA31013%40kitenet.net ``` 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 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. -- see shy jo ``` ## Duy Nguyen, 2015-12-15 11:17 Subject: Re: update index mtime etc metadata Message-ID: URL: https://gitlist.dev/e/CACsJy8DUxBxQJxe0RzJAs7oeu0FbVhEF3OZFpHNp%3D%3D1DD_Ht4w%40mail.gmail.com In-Reply-To: <20151214204429.GA31013@kitenet.net> ``` On Tue, Dec 15, 2015 at 3:44 AM, Joey Hess 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 ```