Revert "comment out CI"

This reverts commit 899fbb4.

.appveyor.yml

@@ -0,0 +1,43 @@
+version: 3.3.0.99.{build}
+
+image: Visual Studio 2015
+platform: x64
+configuration:  # a trick to construct a build matrix with multiple Python versions
+  - 3.7
+
+# only build pull requests and
+# commits to 'master'
+branches:
+  only:
+    - master
+
+environment:
+  matrix:
+    - COMPILER: MSVC
+      TASK: python
+    - COMPILER: MINGW
+      TASK: python
+
+clone_depth: 5
+
+install:
+  - git submodule update --init --recursive  # get `external_libs` folder
+  - set PATH=%PATH:C:\Program Files\Git\usr\bin;=%  # delete sh.exe from PATH (mingw32-make fix)
+  - set PATH=C:\mingw-w64\x86_64-8.1.0-posix-seh-rt_v6-rev0\mingw64\bin;%PATH%
+  - set PYTHON_VERSION=%CONFIGURATION%
+  - set CONDA_ENV="test-env"
+  - ps: |
+      switch ($env:PYTHON_VERSION) {
+          "3.6" {$env:MINICONDA = "C:\Miniconda36-x64"}
+          "3.7" {$env:MINICONDA = "C:\Miniconda37-x64"}
+          default {$env:MINICONDA = "C:\Miniconda37-x64"}
+      }
+      $env:PATH = "$env:MINICONDA;$env:MINICONDA\Scripts;$env:PATH"
+      $env:BUILD_SOURCESDIRECTORY = "$env:APPVEYOR_BUILD_FOLDER"
+      $env:LGB_VER = (Get-Content $env:APPVEYOR_BUILD_FOLDER\VERSION.txt).trim()
+
+build: false
+
+test_script:
+  - conda init powershell
+  - powershell.exe -ExecutionPolicy Bypass -File %APPVEYOR_BUILD_FOLDER%\.ci\test_windows.ps1

.github/workflows/cuda.yml

@@ -0,0 +1,103 @@
+name: CUDA Version
+
+on:
+  push:
+    branches:
+    - master
+  pull_request:
+    branches:
+    - master
+
+env:
+  github_actions: 'true'
+  os_name: linux
+  task: cuda
+  conda_env: test-env
+
+jobs:
+  test:
+    name: cuda ${{ matrix.cuda_version }} ${{ matrix.method }} (linux, ${{ matrix.compiler }}, Python ${{ matrix.python_version }})
+    runs-on: [self-hosted, linux]
+    timeout-minutes: 60
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - method: source
+            compiler: gcc
+            python_version: 3.7
+            cuda_version: "11.4.2"
+          - method: pip
+            compiler: clang
+            python_version: 3.8
+            cuda_version: "10.0"
+          - method: wheel
+            compiler: gcc
+            python_version: 3.9
+            cuda_version: "9.0"
+    steps:
+      - name: Setup or update software on host machine
+        run: |
+            sudo apt-get update
+            sudo apt-get install --no-install-recommends -y \
+                apt-transport-https \
+                ca-certificates \
+                curl \
+                git \
+                gnupg-agent \
+                lsb-release \
+                software-properties-common
+            curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
+            sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" -y
+            curl -sL https://nvidia.github.io/nvidia-docker/gpgkey | sudo apt-key add -
+            curl -sL https://nvidia.github.io/nvidia-docker/$(. /etc/os-release;echo $ID$VERSION_ID)/nvidia-docker.list | sudo tee /etc/apt/sources.list.d/nvidia-docker.list
+            sudo apt-get update
+            sudo apt-get install --no-install-recommends -y \
+                containerd.io \
+                docker-ce \
+                docker-ce-cli \
+                nvidia-docker2
+            sudo chmod a+rw /var/run/docker.sock
+            sudo systemctl restart docker
+      - name: Remove old folder with repository
+        run: sudo rm -rf $GITHUB_WORKSPACE
+      - name: Checkout repository
+        uses: actions/checkout@v1
+        with:
+          fetch-depth: 5
+          submodules: true
+      - name: Setup and run tests
+        run: |
+            export ROOT_DOCKER_FOLDER=/LightGBM
+            cat > docker.env <<EOF
+            GITHUB_ACTIONS=${{ env.github_actions }}
+            OS_NAME=${{ env.os_name }}
+            COMPILER=${{ matrix.compiler }}
+            TASK=${{ env.task }}
+            METHOD=${{ matrix.method }}
+            CONDA_ENV=${{ env.conda_env }}
+            PYTHON_VERSION=${{ matrix.python_version }}
+            BUILD_DIRECTORY=$ROOT_DOCKER_FOLDER
+            LGB_VER=$(head -n 1 VERSION.txt)
+            EOF
+            cat > docker-script.sh <<EOF
+            export CONDA=\$HOME/miniconda
+            export PATH=\$CONDA/bin:\$PATH
+            nvidia-smi
+            $ROOT_DOCKER_FOLDER/.ci/setup.sh || exit -1
+            $ROOT_DOCKER_FOLDER/.ci/test.sh || exit -1
+            EOF
+            cuda_version="${{ matrix.cuda_version }}"
+            cuda_major=${cuda_version%%.*}
+            docker_img="nvcr.io/nvidia/cuda:${cuda_version}-devel"
+            if [[ ${cuda_major} -gt 10 ]]; then
+                docker_img="${docker_img}-ubuntu$(lsb_release -rs)" 
+            fi
+            docker run --env-file docker.env -v "$GITHUB_WORKSPACE":"$ROOT_DOCKER_FOLDER" --rm --gpus all "$docker_img" /bin/bash $ROOT_DOCKER_FOLDER/docker-script.sh
+  all-successful:
+    # https://git.luolix.topmunity/t/is-it-possible-to-require-all-github-actions-tasks-to-pass-without-enumerating-them/117957/4?u=graingert
+    runs-on: ubuntu-latest
+    needs: [test]
+    steps:
+    - name: Note that all tests succeeded
+      run: echo "🎉"

.github/workflows/python_package.yml

@@ -0,0 +1,79 @@
+name: Python-package
+
+on:
+  push:
+    branches:
+    - master
+  pull_request:
+    branches:
+    - master
+
+env:
+  CONDA_ENV: test-env
+  GITHUB_ACTIONS: 'true'
+
+jobs:
+  test:
+    name: ${{ matrix.task }} ${{ matrix.method }} (${{ matrix.os }}, Python ${{ matrix.python_version }})
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 60
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: macOS-latest
+            task: regular
+            python_version: 3.6
+          - os: macOS-latest
+            task: sdist
+            python_version: 3.9
+          - os: macOS-latest
+            task: bdist
+            python_version: 3.8
+          - os: macOS-latest
+            task: if-else
+            python_version: 3.8
+          - os: macOS-latest
+            task: mpi
+            method: source
+            python_version: 3.9
+          - os: macOS-latest
+            task: mpi
+            method: pip
+            python_version: 3.6
+          - os: macOS-latest
+            task: mpi
+            method: wheel
+            python_version: 3.7
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2.3.4
+        with:
+          fetch-depth: 5
+          submodules: true
+      - name: Setup and run tests
+        shell: bash
+        run: |
+          export TASK="${{ matrix.task }}"
+          export METHOD="${{ matrix.method }}"
+          export PYTHON_VERSION="${{ matrix.python_version }}"
+          if [[ "${{ matrix.os }}" == "macOS-latest" ]]; then
+              export COMPILER="gcc"
+              export OS_NAME="macos"
+          elif [[ "${{ matrix.os }}" == "ubuntu-latest" ]]; then
+              export COMPILER="clang"
+              export OS_NAME="linux"
+          fi
+          export BUILD_DIRECTORY="$GITHUB_WORKSPACE"
+          export LGB_VER=$(head -n 1 VERSION.txt)
+          export CONDA=${HOME}/miniconda
+          export PATH=${CONDA}/bin:${PATH}
+          $GITHUB_WORKSPACE/.ci/setup.sh || exit -1
+          $GITHUB_WORKSPACE/.ci/test.sh || exit -1
+  all-successful:
+    # https://git.luolix.topmunity/t/is-it-possible-to-require-all-github-actions-tasks-to-pass-without-enumerating-them/117957/4?u=graingert
+    runs-on: ubuntu-latest
+    needs: [test]
+    steps:
+    - name: Note that all tests succeeded
+      run: echo "🎉"