GitLab

* dev

* dev

* dev

* dev

* dev

---------
Co-authored-by: James Lamb <jaylamb20@gmail.com>

* Add R-squared metric, documentation, and tests

* Fix static ci checks: correct Sklearn r2_score URL link, fix cpp linting errors

* Replace non-static data members from pragma reduction with variables

* Update src/metric/metric.cpp

* Add additional asserts, remove needless y.copy()

* Add back y.copy()

---------
Co-authored-by: James Lamb <jaylamb20@gmail.com>
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

* dev

* dev

* dev

* Update static_analysis.yml

* Update .pre-commit-config.yaml

---------
Co-authored-by: James Lamb <jaylamb20@gmail.com>

[ci][docs] fix link checking action by switching from linkchecker to lychee and update some links (#7027)

Instead of replacing all #ifdef USE_CUDA, just add USE_CUDA define to ROCm build.

Previously #6086 added ROCm support but after numerous rebases it lost
critical changes. This PR restores the ROCm build.

There are many source file changes but most were automated using the
following:

```bash
for f in `grep -rl '#ifdef USE_CUDA'`
do
    sed -i 's@#ifdef USE_CUDA@#if defined(USE_CUDA) || defined(USE_ROCM)@g' $f
done

for f in `grep -rl '#endif  // USE_CUDA'`
do
    sed -i 's@#endif  // USE_CUDA@#endif  // USE_CUDA || USE_ROCM@g' $f
done
```

* [ci] [c++] use 'pre-commit' to run 'cpplint', upgrade to 'cpplint' 2.0.2

* remove bashisms

* one more pipefail use

* another pipefail

Co-authored-by: James Lamb <jaylamb20@gmail.com>

* [ROCm] add support for ROCm/HIP

- CMakeLists.txt ROCm updates, also replace glob with explicit file list
- initial warpSize interop changes
- helpers/hipify.sh script added
- .gitignore to ignore generated hip source files

* more rocm updates

- disable compiler warnings
- move PercentileDevice __device__ template function into header
- bug fixes for __host__ __define__ and __HIP__ preprocessor symbols

* more bug fixes

* warp 32 vs 64 updates

* lint fixes

* missing device_index variable

* accidental inclusion of hip headers

* copyright notice compliance

* Update CMakeLists.txt
Co-authored-by: James Lamb <jaylamb20@gmail.com>

* fix lint issue

* clean up

* Update CMakeLists.txt
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

* Update CMakeLists.txt
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

* clean up CMakeLists.txt

use WARPSIZE

* use WARPSIZE

* fix share buffer size

---------
Co-authored-by: shiyu1994 <shiyu_k1994@qq.com>
Co-authored-by: James Lamb <jaylamb20@gmail.com>
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>
Co-authored-by: Yu Shi <yushi2@microsoft.com>

[python-package] do not copy column-major numpy arrays when creating Dataset from list of arrays (#6773)
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

* 1) Fixed Predictor lifecycle
2) Fixed Boosting trees initialization

#5482

* Added tests for LGBM_BoosterPredictForMat in Contrib mode

* #6778 Reverted indentation to 4 spaces

---------
Co-authored-by: James Lamb <jaylamb20@gmail.com>
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

* remove src/treelearner/kernels

* Update CMakeLists.txt

* clean up

* Update append-comment.sh

* Update static_analysis.yml

* Update static_analysis.yml

* Update basic.py

* Update basic.py

* Update .pre-commit-config.yaml

* Update basic.py

* Update basic.py

* Update basic.py

* Update basic.py

* Update basic.py

* Update pyproject.toml

* Update pyproject.toml

* Update pyproject.toml

* Update pyproject.toml

* Update interactive_plot_example.ipynb

* Update pyproject.toml

* Update append-comment.sh

* Update basic.py

* Update basic.py

* Update pyproject.toml

* Update .pre-commit-config.yaml

* Update basic.py

* Update basic.py

* Update test_basic.R

* Update rank_objective.hpp

* Update histogram_16_64_256.cu

* Update static_analysis.yml

* ensure alphabetical order of rules

Co-authored-by: Nikita Titov <nekit94-08@mail.ru>
Co-authored-by: shiyu1994 <shiyu_k1994@qq.com>

Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

* basic gpu_linear_tree_learner implementation

* corresponding config of gpu linear tree

* Update src/io/config.cpp
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

* work around for gpu linear tree learner without gpu enabled

* add #endif

* add #ifdef USE_GPU

* fix lint problems

* fix compilation when USE_GPU is OFF

* add destructor

* add gpu_linear_tree_learner.cpp in make file list

* use template for linear tree learner

---------
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>
Co-authored-by: shiyu1994 <shiyu_k1994@qq.com>

Co-authored-by: Atanas Dimitrov <nasko119@abv.bg>
Co-authored-by: James Lamb <jaylamb20@gmail.com>

* add bagging by query for lambdarank

* fix pre-commit

* fix bagging by query with cuda

* fix bagging by query test case

* fix bagging by query test case

* fix bagging by query test case

* add #include <vector>

* Update include/LightGBM/objective_function.h
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

* Update tests/python_package_test/test_engine.py
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

* Update tests/python_package_test/test_engine.py
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

---------
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

[python-package] respect 'verbose' setting when using custom objective function (fixes #6014) (#6428)

* [python-package] Allow to pass early stopping min delta in params

* Fix test

* Add separate test

* Fix

* Add to cpp config

* Adjust test

* Adjust test

* Debug

* Revert

* Apply suggestions from code review

---------
Co-authored-by: James Lamb <jaylamb20@gmail.com>