leanprover-community / leanprover-community/repl
[feature request] Built-in command timeout support
Nobody has claimed this yet.
- Dominant language
- Lean
- Stars
- 228
- Forks
- 71
- Avg merge
- 15m
- Merged PRs (30d)
- 4
Description
Currently solutions like
- https://github.com/project-numina/kimina-lean-server/
- https://github.com/augustepoiroux/LeanInteract
have to kill the REPL processes whenever a verification command times out.
This leads to having to restart the REPL process which means re-importing mathlib (currently leading to ~100K I/O syscalls which can stall the server and can increase because of https://github.com/leanprover/lean4/issues/8092).
Would it be possible to natively add timeout option to the JSON commands? I only found a mention that native set_option timeout is not supported by Lean: https://leanprover-community.github.io/archive/stream/113488-general/topic/deterministic.20timeout.html#244454654
If REPL supports natively timeout control, REPL processes would need to be killed and restarted much fewer times
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reviewing the REPL's JSON command interface and the verification command flow described in the issue. Define how a command-level timeout should stop verification without requiring the REPL process to restart, then identify how that behavior can be tested.
Written by the indexing model from the issue text.
Assessment
- Domain
- cli, tooling
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100