Install latest Android SDK toolchain packages

scripts/automation/android-sdk-env.ps1

@@ -41,10 +41,154 @@ function Get-LatestAndroidSdkPackageDirectory {
     return $packages[0]
 }
 
+function Get-AndroidSdkManagerCommand {
+    param([Parameter(Mandatory=$true)][string]$SdkRoot)
+
+    $candidates = @(
+        (Join-Path $SdkRoot "cmdline-tools\latest\bin\sdkmanager.bat"),
+        (Join-Path $SdkRoot "cmdline-tools\latest\bin\sdkmanager.exe"),
+        (Join-Path $SdkRoot "tools\bin\sdkmanager.bat"),
+        (Join-Path $SdkRoot "tools\bin\sdkmanager.exe")
+    )
+
+    $cmdlineToolsRoot = Join-Path $SdkRoot "cmdline-tools"
+    if (Test-Path -LiteralPath $cmdlineToolsRoot -PathType Container) {
+        $toolVersions = @(Get-ChildItem -LiteralPath $cmdlineToolsRoot -Directory |
+            Where-Object { $_.Name -ne "latest" } |
+            Sort-Object {
+                try { [version]$_.Name } catch { [version]"0.0" }
+            } -Descending)
+
+        foreach ($toolVersion in $toolVersions) {
+            $candidates += (Join-Path $toolVersion.FullName "bin\sdkmanager.bat")
+            $candidates += (Join-Path $toolVersion.FullName "bin\sdkmanager.exe")
+        }
+    }
+
+    foreach ($candidate in $candidates) {
+        if ($candidate -and (Test-Path -LiteralPath $candidate -PathType Leaf)) {
+            return (Resolve-Path -LiteralPath $candidate).Path
+        }
+    }
+
+    $pathCommand = Get-Command "sdkmanager" -ErrorAction SilentlyContinue
+    if ($pathCommand) {
+        return $pathCommand.Source
+    }
+
+    return $null
+}
+
+function Get-LatestAvailableAndroidSdkPackageVersion {
+    param(
+        [Parameter(Mandatory=$true)][string]$SdkRoot,
+        [Parameter(Mandatory=$true)][string]$SdkManagerCommand,
+        [Parameter(Mandatory=$true)][string]$PackageName
+    )
+
+    $output = @(& $SdkManagerCommand "--sdk_root=$SdkRoot" "--list" 2>&1)
+    $exitCode = $LASTEXITCODE
+    if ($exitCode -ne 0) {
+        throw "sdkmanager --list failed while checking $PackageName packages: $($output -join [Environment]::NewLine)"
+    }
+
+    $versions = @()
+    $pattern = "^\s*$([regex]::Escape($PackageName));([0-9]+(?:\.[0-9]+)*)\s*\|"
+    foreach ($line in $output) {
+        $text = $line.ToString()
+        if ($text -match $pattern) {
+            $versions += $Matches[1]
+        }
+    }
+
+    if ($versions.Count -eq 0) {
+        return $null
+    }
+
+    return @($versions | Sort-Object { [version]$_ } -Descending | Select-Object -First 1)[0]
+}
+
+function Install-AndroidSdkPackage {
+    param(
+        [Parameter(Mandatory=$true)][string]$SdkRoot,
+        [Parameter(Mandatory=$true)][string]$SdkManagerCommand,
+        [Parameter(Mandatory=$true)][string]$PackageId
+    )
+
+    $licenseInput = ("y`n" * 100)
+    $output = @($licenseInput | & $SdkManagerCommand "--sdk_root=$SdkRoot" "--install" $PackageId 2>&1)
+    $exitCode = $LASTEXITCODE
+    if ($exitCode -ne 0) {
+        throw "sdkmanager failed to install $PackageId with exit code ${exitCode}: $($output -join [Environment]::NewLine)"
+    }
+}
+
+function Ensure-LatestAndroidSdkPackageDirectory {
+    param(
+        [Parameter(Mandatory=$true)][string]$SdkRoot,
+        [Parameter(Mandatory=$true)][string]$PackageName,
+        [string]$SdkManagerCommand
+    )
+
+    $installedBefore = $null
+    try {
+        $installedBefore = Get-LatestAndroidSdkPackageDirectory -SdkRoot $SdkRoot -PackageName $PackageName
+    } catch {
+        $installedBefore = $null
+    }
+
+    $availableVersion = $null
+    $action = "using-installed"
+    if ($SdkManagerCommand) {
+        $availableVersion = Get-LatestAvailableAndroidSdkPackageVersion `
+            -SdkRoot $SdkRoot `
+            -SdkManagerCommand $SdkManagerCommand `
+            -PackageName $PackageName
+
+        $installedVersion = if ($installedBefore) { [version]$installedBefore.Name } else { $null }
+        $availableParsed = if ($availableVersion) { [version]$availableVersion } else { $null }
+        if ($availableParsed -and (!$installedVersion -or $availableParsed -gt $installedVersion)) {
+            Install-AndroidSdkPackage `
+                -SdkRoot $SdkRoot `
+                -SdkManagerCommand $SdkManagerCommand `
+                -PackageId "$PackageName;$availableVersion"
+            $action = "installed-latest-available"
+        } elseif ($availableParsed) {
+            $action = "already-latest-available"
+        } else {
+            $action = "available-version-not-listed"
+        }
+    } elseif (!$installedBefore) {
+        throw "No installed Android SDK package versions found under $(Join-Path $SdkRoot $PackageName), and sdkmanager was not found."
+    }
+
+    $selected = Get-LatestAndroidSdkPackageDirectory -SdkRoot $SdkRoot -PackageName $PackageName
+    return [ordered]@{
+        directory = $selected
+        update = [ordered]@{
+            package = $PackageName
+            installedVersionBefore = if ($installedBefore) { $installedBefore.Name } else { $null }
+            availableVersion = $availableVersion
+            selectedVersion = $selected.Name
+            action = $action
+        }
+    }
+}
+
 function Set-AndroidSdkToolchainEnvironment {
     $sdkRoot = Get-AndroidSdkRoot
-    $ndk = Get-LatestAndroidSdkPackageDirectory -SdkRoot $sdkRoot -PackageName "ndk"
-    $cmake = Get-LatestAndroidSdkPackageDirectory -SdkRoot $sdkRoot -PackageName "cmake"
+    $sdkManagerCommand = Get-AndroidSdkManagerCommand -SdkRoot $sdkRoot
+    $ndkSelection = Ensure-LatestAndroidSdkPackageDirectory `
+        -SdkRoot $sdkRoot `
+        -PackageName "ndk" `
+        -SdkManagerCommand $sdkManagerCommand
+    $cmakeSelection = Ensure-LatestAndroidSdkPackageDirectory `
+        -SdkRoot $sdkRoot `
+        -PackageName "cmake" `
+        -SdkManagerCommand $sdkManagerCommand
+
+    $ndk = $ndkSelection.directory
+    $cmake = $cmakeSelection.directory
     $cmakeCommand = Join-Path $cmake.FullName "bin\cmake.exe"
 
     if (!(Test-Path -LiteralPath $cmakeCommand -PathType Leaf)) {
@@ -58,6 +202,8 @@ function Set-AndroidSdkToolchainEnvironment {
 
     return [ordered]@{
         sdkRoot = $sdkRoot
+        sdkManagerCommand = $sdkManagerCommand
+        packageUpdates = @($ndkSelection.update, $cmakeSelection.update)
         ndkVersion = $ndk.Name
         ndkPath = $ndk.FullName
         cmakeVersion = $cmake.Name