Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
2236122411
This PR adds a standalone script to download pre-built CI artifacts from
GitHub Actions. This allows us to quickly switch commits without
rebuilding.
**Features:**
- Downloads artifacts for current HEAD or specified commit (`--sha`)
- Caches in `~/.cache/lean_build_artifact/` for reuse
- Platform detection (Linux/macOS, x86_64/aarch64)
**Usage:**
```
build_artifact.py # Download for current HEAD
build_artifact.py --sha abc1234 # Download for specific commit
build_artifact.py --clear-cache # Clear cache
```
This is extracted to be shared with `lean-bisect`.
🤖 Prepared with Claude Code
Co-authored-by: Claude <noreply@anthropic.com>
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| .claude | ||
| .github | ||
| doc | ||
| images | ||
| releases_drafts | ||
| script | ||
| src | ||
| stage0 | ||
| tests | ||
| .gitattributes | ||
| .gitignore | ||
| .gitpod.Dockerfile | ||
| .gitpod.yml | ||
| .ignore | ||
| CMakeLists.txt | ||
| CMakePresets.json | ||
| CODEOWNERS | ||
| CONTRIBUTING.md | ||
| flake.lock | ||
| flake.nix | ||
| lean-toolchain | ||
| lean.code-workspace | ||
| LICENSE | ||
| LICENSES | ||
| README.md | ||
| RELEASES.md | ||
This is the repository for Lean 4.
About
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Contributing
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See Building Lean.