## Summary
- Rewrite serial background indexing to concurrent dispatch (up to
`stateless_worker_count / 2` parallel tasks)
- Add depth-counted pause/resume mechanism: completion and
signature-help handlers pause new index dispatches to prioritize user
requests
- Report indexing progress via LSP `$/progress` notifications
(percentage + file count)
- Lower thread scheduling priority (`nice +10`) for index tasks in
stateless workers via RAII `ScopedNice` guard
## Test plan
- [x] `pixi run format` — no changes
- [x] `pixi run unit-test Debug` — 551 passed, 9 skipped (pre-existing)
- [x] `pixi run smoke-test Debug` — 2/2 passed
- [x] `pixi run integration-test Debug` — 121 passed, 3 failed (all
pre-existing on main: header_context x2, staleness x1)
- [ ] Manual test: open a large project (e.g. LLVM), verify progress bar
appears and completion remains responsive during indexing
🤖 Generated with [Claude Code](https://claude.com/claude-code)
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Pause/resume controls for background indexing
* Concurrent, adaptive background indexing with configurable concurrency
* LSP progress reporting (create/begin/report/end) and updated
completion metrics
* **Behavior Change**
* Code completion and signature help temporarily pause indexing for
responsiveness
* Background indexing runs with reduced scheduling priority on
non-Windows and logs "files dispatched" at finish
* **Tests**
* Test client fixture defaults init options and sets workspace cache dir
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
## Summary
This PR adds cross-compilation support for three new target platforms,
upgrades LLVM to 21.1.8, and overhauls the CI pipelines around
cross-builds and testing.
## Cross-compilation
New target triples accepted via `-DCLICE_TARGET_TRIPLE=...`:
| Target triple | Host | Output |
|---|---|---|
| `x86_64-apple-darwin` | macos-15 (arm64) | macOS x64 |
| `aarch64-linux-gnu` | ubuntu-24.04 (x64) | Linux arm64 |
| `aarch64-pc-windows-msvc` | windows-2025 (x64) | Windows arm64 |
- `cmake/toolchain.cmake` — maps `CLICE_TARGET_TRIPLE` to
`CMAKE_SYSTEM_NAME`/`CMAKE_SYSTEM_PROCESSOR`/compiler `--target`; picks
up conda aarch64 sysroot when cross-compiling Linux.
- `cmake/llvm.cmake` — forwards target platform/arch to `setup-llvm.py`
so the right prebuilt LLVM is downloaded for the target.
- `CMakeLists.txt` — uses a host-side `flatc` from `PATH` under
`CMAKE_CROSSCOMPILING` instead of the in-tree target build.
- `pixi.toml`:
- Adds `osx-64`, `linux-aarch64`, `win-arm64` platforms.
- New environments: `cross-macos-x64`, `cross-linux-aarch64` (adds
`gcc_linux-aarch64` + `sysroot_linux-aarch64`), `cross-windows-arm64`.
- New lightweight `test-run` env used on native ARM/x64 runners to
execute cross-built artifacts (pulls in upstream clang+lld on macOS so
tests don't fall back to Apple clang).
- `scripts/activate_cross_linux.sh` — exports `CONDA_PREFIX`-relative
paths for the aarch64 toolchain.
- `scripts/build-llvm.py` — `--target-triple` support and a
`build_native_tools()` helper that produces host `llvm-tblgen` /
`clang-tblgen` needed when cross-compiling LLVM itself.
## LLVM upgrade 21.1.4 → 21.1.8
- `cmake/package.cmake` bumps `setup_llvm("21.1.8")`.
- `config/llvm-manifest.json` regenerated with 6 new cross-compiled
entries and a new `arch` field on every entry so lookup is `(version,
platform, arch, lto, build_type)`.
- `scripts/setup-llvm.py` — honours the new `arch` field when resolving
artifacts.
- `scripts/update-llvm-version.py` (new) — single-call version bump
across `package.cmake` + manifest.
- `scripts/validate-llvm-components.py` (new) — scans the LLVM source
tree for library targets and diffs them against
`scripts/llvm-components.json` to catch stale/misspelled component names
before a build.
- `scripts/llvm-components.json` (new) — explicit allow-list of required
LLVM/Clang library targets used by `build-llvm.py`.
## CI changes
- `.github/workflows/build-llvm.yml`:
- Adds `workflow_dispatch` with `llvm_version`, `skip_upload`, `skip_pr`
inputs.
- Matrix extended with the 6 cross-compile entries (2 per new platform:
RelWithDebInfo ± LTO).
- `build clice` / test / prune steps gated on `!matrix.target_triple`
for cross-builds; cross-built LTO entries apply the native prune
manifest (arch-independent).
- Cross-compiled binary architecture is verified with `file(1)`.
- New `upload` job triggered by `workflow_dispatch` pushes artifacts to
`clice-io/clice-llvm` and hands the manifest off to the next job.
- `.github/workflows/test-cmake.yml`:
- Build matrix gains three `build_only: true` cross entries that upload
`bin/` + `lib/` artifacts.
- New `test-cross` job runs on native `macos-15-intel`,
`ubuntu-24.04-arm`, `windows-11-arm` runners, downloads the cross-built
artifacts, and runs unit / integration / smoke tests under the
`test-run` pixi env.
- Cache keys now include `target_triple` so native and cross builds
don't collide.
- `.github/workflows/publish-clice.yml`:
- Three additional release artifacts for the new targets
(`clice-x86_64-macos-darwin`, `clice-aarch64-linux-gnu`,
`clice-aarch64-windows-msvc`), each with a matching `-symbol` archive.
## Compatibility
- All existing native builds and tests are preserved; cross entries are
additive.
- `Debug` + ASAN remains disabled on Windows (`llvm_mode == Debug && os
== windows-*` no longer appends `-asan`).
🤖 Generated with [Claude Code](https://claude.com/claude-code)
---------
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
## Summary
- Add `.claude/CLAUDE.md` with project guide, C++ coding style,
correction patterns from past AI interactions, and pre-commit/pre-PR
workflows
- Add `.claude/commands/` with `/build`, `/test`, `/format` slash
commands for Claude Code
- Add `.clang-tidy` configuration
- Add `scripts/run_clang_tidy.py` for parallel clang-tidy with progress
reporting (reads CDB, filters to `src/` and `tests/` only)
- Add pixi tasks: `clang-tidy`, `lint-cpp`, `lint-python`, `lint`
- Add `clang-tools` dependency for clang-tidy
- Update `.gitignore` to track `.claude/CLAUDE.md` and
`.claude/commands/`
## Test plan
- [x] `pixi run format` passes
- [x] `pixi run lint-python` passes (ruff check)
- [x] `scripts/run_clang_tidy.py` correctly filters to project files
only
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
## Summary
- **Remove xmake build system**: delete `xmake.lua`, `test-xmake.yml`
workflow, and all xmake-related pixi tasks
- **Migrate packaging to CMake**: `publish-clice.yml` now uses `cmake
-DCLICE_RELEASE=ON` instead of xmake pack
- **Clean up**: remove unused `tests/uv.lock`, `.xmake/` from
`.gitignore`, xmake references from docs
- **Benchmark CI**: change trigger from `pull_request` to
`workflow_dispatch` (manual only)
- **Simplify CLI parsing**: use `DecoKV(style =
KVStyle::JoinedOrSeparate)` in `clice.cc` and `unit_tests.cc`, replacing
verbose `DecoKVStyled` with manual `static_cast` bitmask; use comma
separators; explicit `names` only for underscore fields
## Test plan
- [x] `pixi run cmake-build RelWithDebInfo` compiles successfully
- [x] Verify `pixi run test` passes
- [x] Verify `pixi run package` produces correct archives via CMake
release build
- [x] Verify benchmark workflow can be triggered manually via `gh
workflow run benchmark`
🤖 Generated with [Claude Code](https://claude.com/claude-code)
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Chores**
* Consolidated CI workflows; some automated triggers converted to manual
invocation
* Standardized shell for workflow steps and removed legacy build
workflow
* Switched packaging/build tasks to a CMake/Ninja flow and updated
artifact paths
* Adjusted ignore rules to include previously-ignored build metadata
* **Documentation**
* Removed XMake-specific build and test instructions; docs now reflect
the CMake-based workflow
* **Style**
* Updated CLI option declaration style (no user-facing flag name
changes)
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
## Summary
Add LSP trace recording and replay-based smoke testing infrastructure.
### clice changes (`src/clice.cc`)
- Add `--log-level` CLI option with validation (rejects unknown levels
instead of silently defaulting to off)
- Add `--record <path>` CLI option that wraps the transport with
`RecordingTransport` to capture client→server messages as timestamped
JSONL
- Works in both pipe and socket modes
- Fix exit code: `loop.run()` returns non-zero after `uv_stop()`,
explicitly return 0 after clean shutdown
### Compile logging (`src/compile/compilation.cpp`)
- Print compile commands at debug log level
### Replay script (`tests/replay.py`)
- Timestamp-based pacing: sleeps between messages based on recorded
intervals, faithful to original editor session
- Automatic workspace path rewriting: infers repo root from script
location, rewrites absolute paths in trace so CI replay works without
extra arguments
- Handles server→client requests (workDoneProgress/create,
registerCapability, etc.) with default responses
- Waits for all pending responses before sending shutdown/exit
- Detects server exit mid-replay and fails pending futures immediately
instead of hanging
- Reports PASS/FAIL/SKIP with stderr tail on failure
### CI & config
- Add `smoke-test` pixi task and CI workflow step (runs after
integration tests)
- `.gitattributes`: mark `tests/smoke/*.jsonl` as `linguist-generated
binary` to suppress diffs
- Add sample trace file `tests/smoke/session.jsonl`
### VSCode extension
- Add restart command (`clice.restart`)
- Support `CLICE_MODE` env var to override mode setting (for debug
launch configs)
- Split launch configs into socket/pipe variants with
`--disable-extensions`
## Test plan
- [x] `python tests/replay.py tests/smoke/session.jsonl --clice
./build/RelWithDebInfo/bin/clice` passes locally
- [ ] CI smoke test passes on Linux/macOS/Windows
🤖 Generated with [Claude Code](https://claude.com/claude-code)
---------
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
## 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>
