phases:
- phase: Linux
  variables:
    PYTHON_VERSION: 3.6
    AGENT_OS: linux
    CONDA_ENV: test-env
  queue:
    name: 'Hosted Linux Preview'
    parallel: 9
    matrix:
      regular:
        TASK: regular
      mpi:
        TASK: mpi
      pylint: 
        TASK: pylint
      doc:
        TASK: check-docs
      inference:
        TASK: if-else
      sdist:
        TASK: sdist
        PYTHON_VERSION: 2.7
      bdist:
        TASK: bdist
        PYTHON_VERSION: 3.5
      gpu_1:
        TASK: gpu 
        METHOD: source
      gpu_2:
        TASK: gpu 
        METHOD: pip
  steps:
  - script: sudo apt-get update
  - script: bash .vsts-ci/setup.sh
  # - task: CondaEnvironment@0
  #   inputs:
  #     environmentName: $(CONDA_ENV)
  #     packageSpecs: 'python=$(PYTHON_VERSION)' # Optional
  #     createOptions: '-q'

  - task: UsePythonVersion@0
    inputs:
      versionSpec: '$(PYTHON_VERSION)'
      architecture: 'x64'
  - script: python -m pip install --upgrade pip setuptools wheel
  - script: bash .vsts-ci/test.sh

- phase: MacOS
  variables:
    PYTHON_VERSION: 3.6
    AGENT_OS: darwin
    CONDA_ENV: test-env
  queue:
    name: 'Hosted macOS Preview'
    parallel: 4
    matrix:
      regular:
        TASK: regular
      mpi:
        TASK: mpi
      sdist:
        TASK: sdist
        PYTHON_VERSION: 2.7
      bdist:
        TASK: bdist
        PYTHON_VERSION: 3.5
  steps:
  - script: bash .vsts-ci/setup.sh
  # - task: CondaEnvironment@0
  #   inputs:
  #     environmentName: $(CONDA_ENV)
  #     packageSpecs: 'python=$(PYTHON_VERSION)' # Optional
  #     createOptions: '-q'

  - task: UsePythonVersion@0
    inputs:
      versionSpec: '$(PYTHON_VERSION)'
      architecture: 'x64'
  - script: python -m pip install --upgrade pip setuptools wheel
  - script: bash .vsts-ci/test.sh

- phase: Windows_1
  variables:
    PYTHON_VERSION: 3.6
    AGENT_OS: windows
  queue:
    name: 'Hosted'
    parallel: 4
    matrix:
      regular:
        TASK: regular
      mpi:
        TASK: mpi
      sdist:
        TASK: sdist
        PYTHON_VERSION: 2.7
      bdist:
        TASK: bdist
        PYTHON_VERSION: 3.5
  steps:
  - task: UsePythonVersion@0
    inputs:
      versionSpec: '$(PYTHON_VERSION)'
      architecture: 'x64'

- phase: Windows_2
  variables:
    PYTHON_VERSION: 3.6
    AGENT_OS: windows
  queue:
    name: 'Hosted VS2017'
    parallel: 4
    matrix:
      regular:
        TASK: regular
      mpi:
        TASK: mpi
      sdist:
        TASK: sdist
        PYTHON_VERSION: 2.7
      bdist:
        TASK: bdist
        PYTHON_VERSION: 3.5
  steps:
  - task: UsePythonVersion@0
    inputs:
      versionSpec: '$(PYTHON_VERSION)'
      architecture: 'x64'