Re: [PATCH] fsmonitor: invalidate untracked cache after losing history

[Derrick Stolee <stolee@gmail.com>]

On 11/4/2026 5:52 PM, Junio C Hamano wrote:
> "Derrick Stolee via GitGitGadget" <gitgitgadget@gmail.com> writes:

>>     A user of an internal monorepo reported this behavior, including an
>>     AI-assisted powershell script to prove how it worked. I used an agent to
>>     assist in porting that to a Git test script and a code fix, but then
>>     applied significant human editing and validation on top to get it up to
>>     my standards.
>>     
>>     Thanks, -Stolee
> 
> Would this be a viable replacement for ik/fsmonitor-untracked-cache-trivial-response
> 
>   https://lore.kernel.org/git/pull.2247.git.1791127155614.gitgitgadget@gmail.com/
> 
> that has been left unreviewed for a month?

Thank you for pointing me at this. I didn't realize there was already a
patch working on a fix for this issue.

Ilia's patch has the stronger approach of trying to preserve as much of
the untracked cache as possible, which has some performance improvements
over my change (in the "rare" case of the fsmonitor failing).

Let me first see if we can take that patch instead of mine. I'll start
some review over there.

Thanks,
-Stolee