install-android-ndk.ps1

Param(
    [string] $Version = "r21",
    [string] $InstallDestination = $null
)

$ErrorActionPreference = 'Stop'

Add-Type -AssemblyName System.IO.Compression.FileSystem

$HOME_DIR = if ($env:HOME) { $env:HOME } else { $env:USERPROFILE }

if ($IsMacOS) {
    $platform = "darwin-x86_64"
} elseif ($IsLinux) {
    $platform = "linux-x86_64"
} else {
    $platform = "windows-x86_64"
}

$url = "https://dl.google.com/android/repository/android-ndk-${Version}-${platform}.zip"

$ndk = "$HOME_DIR/android-ndk"
if ($InstallDestination) {
    $ndk = $InstallDestination
}
Write-Host "Install destination is '$ndk'..."

$ndkTemp = "$HOME_DIR/android-ndk-temp"
$install = "$ndkTemp/android-ndk.zip"

# download
Write-Host "Downloading NDK..."
New-Item -ItemType Directory -Force -Path "$ndkTemp" | Out-Null
(New-Object System.Net.WebClient).DownloadFile("$url", "$install")

# extract
Write-Host "Extracting NDK..."
if ($IsMacOS -or $IsLinux) {
    # use the native command to preserve permissions
    unzip "$install" -d "$ndkTemp"
}else {
    [System.IO.Compression.ZipFile]::ExtractToDirectory("$install", "$ndkTemp")
}

# move / rename
Write-Host "Moving NDK..."
Move-Item "${ndkTemp}\android-ndk-${Version}" "$ndk"

# make sure that NDK is in ANDROID_NDK_HOME
Write-Host "##vso[task.setvariable variable=ANDROID_NDK_HOME;]$ndk";

exit $LASTEXITCODE