## Summary
Improve CMake build system: cleaner separation, compiler caching, and
release packaging.
### Toolchain & Build
- Clean up `toolchain.cmake` to only contain clang/lld-specific setup
(compiler paths, linker selection, llvm tools), allowing other
toolchains like GCC to work without it
- Add ccache (Linux/macOS) and sccache (Windows) support via toolchain
auto-detection
- Move project-universal flags (`-ffunction-sections`, `--gc-sections`,
`-static-libstdc++`, etc.) to `CMakeLists.txt` so they apply regardless
of toolchain
- Add `-fno-exceptions` to project compile options; fix `/EHs-c-` for
proper MSVC exception disabling
- Use MSVC/clang-cl frontend detection instead of `WIN32` for
MSVC-specific linker flags
- Declare missing options: `CLICE_USE_LIBCXX`, `CLICE_OFFLINE_BUILD`,
`CLICE_ENABLE_BENCHMARK`, `CLICE_RELEASE`
### Release Packaging (`cmake/release.cmake`)
- Strip debug symbols and produce separate symbol archives (`.debug` /
`.dSYM` / `.pdb`)
- Windows: copy PDB via `$<TARGET_PDB_FILE:clice>`; macOS: use
`copy_directory` for dSYM bundle
- Package clice binary + clang resource dir + config into distributable
tarball/zip
- `cmake/archive.cmake` helper for cross-platform archive creation
- Activated via `-DCLICE_RELEASE=ON` (auto-enables LTO)
### Code Cleanup
- Replace manual 40+ line source file list with `GLOB_RECURSE` for
clice-core
- Fix duplicate `include_resolver.cpp` entry
- Use build-time `add_custom_target` for clang resource dir copy
(instead of configure-time `file(COPY)`)
- Gate `scan_benchmark` behind `CLICE_ENABLE_BENCHMARK` option
### CI
- Add compiler cache with env var control (`CCACHE_DIR`/`SCCACHE_DIR`)
and `actions/cache` for persistence
- Proper cache lifecycle: zero-stats before build, show-stats +
stop-server after
- Stop sccache server before pixi cleanup to fix Windows EBUSY error
- Pass `CLICE_ENABLE_BENCHMARK=ON` in benchmark workflow
- Platform-specific ccache/sccache dependencies in pixi.toml
## Test plan
- [x] Local build (RelWithDebInfo) passes
- [x] Local release build (LTO + strip + pack) produces correct archives
- [ ] CI: Linux Debug/RelWithDebInfo
- [ ] CI: macOS Debug/RelWithDebInfo
- [ ] CI: Windows Debug/RelWithDebInfo
- [ ] CI: Benchmark (all platforms)
---------
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
## Summary
- **CMake-based CDB generation for module tests**: Replace hand-written
compile_commands.json with CMakeLists.txt (CMake 3.28 `FILE_SET
CXX_MODULES`) in all 26 `tests/data/modules/*/` directories. CDB is
generated on-the-fly via `cmake -G Ninja` during test setup.
- **`@pytest.mark.workspace()` decorator**: Introduce a marker + fixture
pattern so tests declare their workspace via decorator and receive a
resolved `workspace` path. The fixture auto-generates CDB when a
CMakeLists.txt is present.
- **`CliceClient` helper methods**: Add `initialize()`, `open()`,
`wait_diagnostics()`, and `open_and_wait()` to reduce boilerplate across
all test files.
- **Use `asyncio_mode = "auto"`**: Switch from `@pytest_asyncio.fixture`
+ `@pytest.mark.asyncio` to `@pytest.fixture` + auto mode for proper
Pylance type inference on fixtures.
- **Test cleanup**: Remove redundant section separators and docstrings,
delete `tests/pyproject.toml` (config moved to `pytest.ini`).
- **Format task**: Add `.cppm` to `format-cpp` glob pattern.
- **CI fix**: Disable `CMAKE_CXX_SCAN_FOR_MODULES` and prefer pixi
clang++ to fix macOS CI where CMake rejects module scanning.
## Test plan
- [x] All 26 module test directories have CMakeLists.txt with FILE_SET
CXX_MODULES
- [x] generate_cdb() produces valid compile_commands.json with module
flags
- [x] Integration tests pass locally
- [ ] CI passes on all platforms (Linux, macOS, Windows)
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Tests**
* Unified fixtures and client workflow: new init/open/wait helpers,
workspace marker support, bounded diagnostics waiting, CMake-based
compilation-database generation, and directory-backed temp-file
workflows; enabled asyncio test mode.
* **Chores**
* Added many C++20 module test projects and test data; removed prior
test pyproject in favor of pytest config; updated formatter to include
.cppm files.
* **Style**
* Reformatted many module/source implementations to consistent
multi-line function bodies.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
