GitLab

* [ci] speed up if-else, swig, and lint conda setup

* add 'source activate'

* python constraint

* start removing cuda v1

* comment out CI

* remove more references

* revert some unnecessaary changes

* revert a few more mistakes

* revert another change that ignored params

* sigh

* remove CUDATreeLearner

* fix tests, docs

* fix quoting in setup.py

* restore all CI

* Apply suggestions from code review
Co-authored-by: shiyu1994 <shiyu_k1994@qq.com>

* Apply suggestions from code review

* completely remove cuda_exp, update docs

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Co-authored-by: shiyu1994 <shiyu_k1994@qq.com>

[ci] [python-package] fix missing import, test that lightgbm can be imported with only required dependencies (fixes #5631) (#5632)

* Add integrated OpenCL build on Linux

* Build integrated OpenCL Linux wheel in CI

* Fix test_dual.py on Linux arm64

* Enable integrated OpenCL Linux wheel arm64 testing in CI

* Update documentation

* Add comment about gpu_use_dp

* add missing fi dropped in merge conflict resolution

* install opencl-headers on bdist task

* use new CI image for x86_64

* update check_dynamic_dependencies script

* use main CI image
Co-authored-by: James Lamb <jaylamb20@gmail.com>

[ci] prefer CPython in Windows test environment and use safer approach for cleaning up network (fixes #5509) (#5510)

* Update utils.R

* Update lint_r_code.R

* Update lint_r_code.R

* Update lint_r_code.R

* Update lint_r_code.R

[ci] [R-package] Add paste_linter (#5303)

* Add duplicate_argument_linter

* Add duplicate_argument_linter

* added acomment for duplicate argument

* Update R-package/tests/testthat/test_utils.R
Co-authored-by: José Morales <jmoralz92@gmail.com>
Co-authored-by: José Morales <jmoralz92@gmail.com>

* [ci] Fix any_is_na linter key

* [ci] Add several linter checks (#5303)

Includes following linters

- any_duplicated_linter()
- inner_combine_linter()
- literal_coercion_linter()
- missing_argument_linter()
- numeric_leading_zero_linter()
- outer_negation_linter()
- package_hooks_linter()
- sprintf_linter()
- regex_subset_linter()
- unreachable_code_linter()
- vector_logic_linter()

These required no changes to the code base

* Install PoCL in Docker for old Ubuntu 14.04

* Update .vsts-ci.yml

* Try with Clang

* switch back to gcc

* Switch from dev container to stable one

Do not use r-lintr 3.0+

* Run OpenCL tests against POCL instead of the AMD App SDK

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

* Run Linux gpu source on default Python version

* [docs] Update GPU Targets Table
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>