GitLab

* [ci] move C++ tests to GitHub Actions

* skip more CI

* fix env variables

* fix some small things

* fix software setup

* add sudo

* UBUNTU_BASE_CONTAINER (spelling)

* fix condition on manylinux image

* restore other CI

* remove if-else from python_package

* define BUILD_ARTIFACTSTAGINGDIRECTORY for cpp jobs

* Apply suggestions from code review
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

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

* Update .appveyor.yml

* Update .appveyor.yml

* Update test_arrow.py

* Update test_arrow.py

* Update .appveyor.yml

* Update test_arrow.py

* [ci] move R-package artifact publishing to GitHub Actions

* create artifacts directory

* ensure both files are included

* restore other CI

* create artifacts directory unconditionally

* Update .github/workflows/r_package.yml
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

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

* Update setup.sh

* Update build-docs.sh

* Update test-windows.ps1

* [ci] [C++] drop support for Visual Studio 2015 (fixes #6803)

* update more references

* [ci] some additional changes to drop VS2015 and make it work from solution file (#7046)

* Update LightGBM.vcxproj

* Update LightGBM.vcxproj.filters

* Update Installation-Guide.rst

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

* Add competitions

* Simplify links

* Remove 1st place

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

This reverts commit e461e868.

error: explicit specialization in non-namespace scope ‘class ArrowChunkedArrayTest’

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
```

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

* [docs] update Ray section

* [docs] add Ray to external repositories

* [docs] simplify Ray note

Bumps the ci-dependencies group with 1 update: [actions/checkout](https://github.com/actions/checkout).


Updates `actions/checkout` from 4 to 5
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v4...v5

)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: ci-dependencies
...
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* [ci] separate configs and scripts for linting and docs CI

* update name

* remove lint-cpp reference

* Update .ci/lint-all.sh

* Update .ci/lint-all.sh
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

* revert env: blocks

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

* [python-package] Fix mypy checks in `engine.py`

* Update python-package/lightgbm/engine.py

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

* [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: Nikita Titov <nekit94-08@mail.ru>

* [docs] [python-package] document how to run Python tests

* refer to installation instructions

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