try-repo doesn't utilize already existing environment

[ulgens]

Summary

I'm developing a tool and I need to test it while developing. Initially, I was setting up the .pre-commit-config.yaml file to use the latest commit in the repo:

  - repo: .
    rev: <commit_hash>
    hooks:
        ...

This approach installs the referenced commit in the first call, and the next calls uses the installed env and runs instantly.

Then I found out try-repo exists,

prek try-repo . -v --all-files

Install the hooks every time I call the command, even when nothing has changed. From the command's output, it looks like prek creates a new environment for each call and doesn't reuse the previous one. The following fragmants are extracted from consequent calls with no change in the repo:

- repo: .../.cache/prek/scratch/try-repo-H9WAQM/shadow-repo
- repo: .../.cache/prek/scratch/try-repo-Q3ywIR/shadow-repo
- repo: .../.cache/prek/scratch/try-repo-SLeW5H/shadow-repo

This adds an extra ~5 seconds to each run in my case. While creating a new env, I believe it also installs additional_dependencies from scratch.

This makes development process slower than it should be, and it becomes frustrating very quickly when you are trying to get quick results.

Platform

macOS 15.7 / Darwin 24.6.0 arm64

Version

0.2.25

.pre-commit-config.yaml

No response

Log file

No response