#
# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.
#

name: CI
on: [pull_request, push]

jobs:
  build:
    strategy:
      matrix:
        go: ['1.14', '1.13', '1.12', '1.11']
    name: Build (Go ${{ matrix.go }})
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - uses: actions/setup-go@v2
      with:
        go-version: ${{ matrix.go }}
    - name: Install dependencies
      run: sudo apt-get install -y libpam0g-dev
    - name: Build
      run: GO111MODULE=on make

  build-32bit:
    name: Build (32-bit)
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - uses: actions/setup-go@v2
    - name: Install dependencies
      run: |
        sudo dpkg --add-architecture i386
        sudo apt-get update
        sudo apt-get install -y libpam0g-dev:i386 gcc-multilib
    - name: Build
      run: CGO_ENABLED=1 GOARCH=386 make

  run-integration-tests:
    name: Run integration tests
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - uses: actions/setup-go@v2
    - name: Install dependencies
      run: sudo apt-get install -y libpam0g-dev e2fsprogs keyutils
    - name: Run integration tests
      run: |
        make test-setup
        keyctl link @u @s
        make coverage.out
        make test-teardown
    - name: Report coverage
      uses: shogo82148/actions-goveralls@v1
      with:
        path-to-profile: coverage.out

  # This isn't working currently because qemu user-mode emulation doesn't
  # support passing through the keyctl() system call and the fscrypt ioctls.
  # Hopefully GitHub Actions will natively support other architectures soon...
  #
  # run-integration-tests-other-arch:
  #   name: Run integration tests (${{ matrix.arch }})
  #   strategy:
  #     matrix:
  #       arch: [armv7, aarch64, ppc64le]
  #   runs-on: ubuntu-latest
  #   steps:
  #     - uses: actions/checkout@v2
  #     - uses: uraimo/run-on-arch-action@v2.0.5
  #       with:
  #         arch: ${{ matrix.arch }}
  #         distro: buster
  #         githubToken: ${{ github.token }}
  #         # Needed for 'make test-setup' to mount the test filesystem.
  #         dockerRunArgs: --privileged
  #         install: |
  #           apt-get update
  #           apt-get install -y build-essential git sudo golang-go \
  #                              libpam0g-dev e2fsprogs keyutils
  #         run: |
  #           export GO111MODULE=on
  #           make test-setup
  #           keyctl link @u @s
  #           make test
  #           make test-teardown

  run-cli-tests:
    name: Run command-line interface tests
    # The cli tests require kernel 5.4 or later, and thus Ubuntu 20.04 or later.
    runs-on: ubuntu-20.04
    steps:
    - uses: actions/checkout@v2
    - uses: actions/setup-go@v2
    - name: Install dependencies
      run: sudo apt-get install -y libpam0g-dev e2fsprogs expect keyutils
    - name: Run command-line interface tests
      run: make cli-test

  generate-format-and-lint:
    name: Generate, format, and lint
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - uses: actions/setup-go@v2
    - name: Install dependencies
      run: |
        sudo apt-get install -y libpam0g-dev shellcheck
        make tools
    - name: Generate
      run: make gen && bin/files-changed proto
    - name: Format
      run: make format && bin/files-changed format
    - name: Lint
      run: make lint