trigger:
  - master

jobs:
- job: Build
  timeoutInMinutes: 360
  strategy:
    matrix:
      windows:
        imageName: 'vs2017-win2016'
      mac:
        imageName: 'macos-10.14'
      linux:
        imageName: 'ubuntu-16.04'

  pool:
    vmImage: $(imageName)

  steps:
    - script: |
        powershell -Command "$ProgressPreference = 'SilentlyContinue'; iwr -outf %TEMP%\LLVM-8.0.0-win64.exe https://rust-lang-ci2.s3.amazonaws.com/rust-ci-mirror/LLVM-8.0.0-win64.exe"
        set CLANG_DIR=%CD%\citools\clang-rust
        start "" /WAIT %TEMP%\LLVM-8.0.0-win64.exe /S /NCRC /D=%CLANG_DIR%
        echo ##vso[task.prependpath]%CLANG_DIR%/bin
      condition: and(succeeded(), eq(variables['Agent.OS'], 'Windows_NT'))
      displayName: Install clang (Windows)
    - bash: |
        set -euo pipefail
        curl -f http://releases.llvm.org/8.0.0/clang+llvm-8.0.0-x86_64-apple-darwin.tar.xz | tar xJf -
        export CLANG_DIR=`pwd`/clang+llvm-8.0.0-x86_64-apple-darwin/bin
        echo "##vso[task.prependpath]$CLANG_DIR"
      displayName: Install clang (OSX)
      condition: and(succeeded(), eq(variables['Agent.OS'], 'Darwin'))
    - bash: |
        set -euo pipefail
        curl -f http://releases.llvm.org/8.0.0/clang+llvm-8.0.0-x86_64-linux-gnu-ubuntu-16.04.tar.xz | tar xJf -
        export CLANG_DIR=`pwd`/clang+llvm-8.0.0-x86_64-linux-gnu-ubuntu-16.04/bin
        echo "##vso[task.prependpath]$CLANG_DIR"
      displayName: Install clang (Linux)
      condition: and(succeeded(), eq(variables['Agent.OS'], 'Linux'))
    - bash: |
        # Windows releases of LLVM don't include the llvm-nm tool, which is needed for building
        # wasi-libc. Rust's llvm-tools include llvm-nm, and Rust is installed on Azure's Windows
        # images, so we can use that to make llvm-nm available without too much overhead.
        set -euo pipefail
        # Add --no-self-update as a workaround for
        # https://github.com/microsoft/azure-pipelines-image-generation/issues/1224
        rustup update stable --no-self-update
        rustup default stable
        rustup component add llvm-tools-preview
        echo "##vso[task.setvariable variable=WASM_NM;]$(rustc --print sysroot|sed 's|C:|/c|'|sed 's|\\|/|g')/lib/rustlib/x86_64-pc-windows-msvc/bin/llvm-nm.exe"
      displayName: Install llvm-nm (Windows)
      condition: and(succeeded(), eq( variables['Agent.OS'], 'Windows_NT' ))
    - script: make -j4
      displayName: Build