[CmdletBinding()]

Param(

[string]$Script = "build.cake",

[string]$Target,

[string]$Configuration,

[ValidateSet("Quiet", "Minimal", "Normal", "Verbose", "Diagnostic")]

[string]$Verbosity,

[switch]$ShowDescription,

[Alias("WhatIf", "Noop")]

[switch]$DryRun,

[switch]$SkipToolPackageRestore,

[Parameter(Position=0,Mandatory=$false,ValueFromRemainingArguments=$true)]

[string[]]$ScriptArgs

)

try {

# Set TLS 1.2 (3072), then TLS 1.1 (768), then TLS 1.0 (192), finally SSL 3.0 (48)

# Use integers because the enumeration values for TLS 1.2 and TLS 1.1 won't

# exist in .NET 4.0, even though they are addressable if .NET 4.5+ is

# installed (.NET 4.5 is an in-place upgrade).

# PowerShell Core already has support for TLS 1.2 so we can skip this if running in that.

if (-not $IsCoreCLR) {

[System.Net.ServicePointManager]::SecurityProtocol = 3072 -bor 768 -bor 192 -bor 48

}

} catch {

Write-Output 'Unable to set PowerShell to use TLS 1.2 and TLS 1.1 due to old .NET Framework installed. If you see underlying connection closed or trust errors, you may need to upgrade to .NET Framework 4.5+ and PowerShell v3'

}

[Reflection.Assembly]::LoadWithPartialName("System.Security") | Out-Null

function MD5HashFile([string] $filePath)

{

if ([string]::IsNullOrEmpty($filePath) -or !(Test-Path $filePath -PathType Leaf))

{

return $null

}

[System.IO.Stream] $file = $null;

[System.Security.Cryptography.MD5] $md5 = $null;

try

{

$md5 = [System.Security.Cryptography.MD5]::Create()

$file = [System.IO.File]::OpenRead($filePath)

return [System.BitConverter]::ToString($md5.ComputeHash($file))

}

finally

{

if ($file -ne $null)

{

$file.Dispose()

}

}

}

function GetProxyEnabledWebClient

{

$wc = New-Object System.Net.WebClient

$proxy = [System.Net.WebRequest]::GetSystemWebProxy()

$proxy.Credentials = [System.Net.CredentialCache]::DefaultCredentials

$wc.Proxy = $proxy

return $wc

}

Write-Host "Preparing to run build script..."

if(!$PSScriptRoot){

$PSScriptRoot = Split-Path $MyInvocation.MyCommand.Path -Parent

}

$TOOLS_DIR = Join-Path $PSScriptRoot "tools"

$ADDINS_DIR = Join-Path $TOOLS_DIR "Addins"

$MODULES_DIR = Join-Path $TOOLS_DIR "Modules"

$NUGET_EXE = Join-Path $TOOLS_DIR "nuget.exe"

$CAKE_EXE = Join-Path $TOOLS_DIR "Cake/Cake.exe"

$NUGET_URL = "https://dist.nuget.org/win-x86-commandline/latest/nuget.exe"

$PACKAGES_CONFIG = Join-Path $TOOLS_DIR "packages.config"

$PACKAGES_CONFIG_MD5 = Join-Path $TOOLS_DIR "packages.config.md5sum"

$ADDINS_PACKAGES_CONFIG = Join-Path $ADDINS_DIR "packages.config"

$MODULES_PACKAGES_CONFIG = Join-Path $MODULES_DIR "packages.config"

if ((Test-Path $PSScriptRoot) -and !(Test-Path $TOOLS_DIR)) {

Write-Verbose -Message "Creating tools directory..."

New-Item -Path $TOOLS_DIR -Type Directory | Out-Null

}

if (!(Test-Path $PACKAGES_CONFIG)) {

Write-Verbose -Message "Downloading packages.config..."

try {

$wc = GetProxyEnabledWebClient

$wc.DownloadFile("https://cakebuild.net/download/bootstrapper/packages", $PACKAGES_CONFIG)

} catch {

Throw "Could not download packages.config."

}

}

if (!(Test-Path $NUGET_EXE)) {

Write-Verbose -Message "Trying to find nuget.exe in PATH..."

$existingPaths = $Env:Path -Split ';' | Where-Object { (![string]::IsNullOrEmpty($_)) -and (Test-Path $_ -PathType Container) }

$NUGET_EXE_IN_PATH = Get-ChildItem -Path $existingPaths -Filter "nuget.exe" | Select -First 1

if ($NUGET_EXE_IN_PATH -ne $null -and (Test-Path $NUGET_EXE_IN_PATH.FullName)) {

Write-Verbose -Message "Found in PATH at $($NUGET_EXE_IN_PATH.FullName)."

$NUGET_EXE = $NUGET_EXE_IN_PATH.FullName

}

}

if (!(Test-Path $NUGET_EXE)) {

Write-Verbose -Message "Downloading NuGet.exe..."

try {

$wc = GetProxyEnabledWebClient

$wc.DownloadFile($NUGET_URL, $NUGET_EXE)

} catch {

Throw "Could not download NuGet.exe."

}

}

$env:NUGET_EXE = $NUGET_EXE

$env:NUGET_EXE_INVOCATION = if ($IsLinux -or $IsMacOS) {

"mono `"$NUGET_EXE`""

} else {

"`"$NUGET_EXE`""

}

if(-Not $SkipToolPackageRestore.IsPresent) {

Push-Location

Set-Location $TOOLS_DIR

# Check for changes in packages.config and remove installed tools if true.

[string] $md5Hash = MD5HashFile $PACKAGES_CONFIG

if((!(Test-Path $PACKAGES_CONFIG_MD5)) -Or

($md5Hash -ne (Get-Content $PACKAGES_CONFIG_MD5 ))) {

Write-Verbose -Message "Missing or changed package.config hash..."

Get-ChildItem -Exclude packages.config,nuget.exe,Cake.Bakery |

Remove-Item -Recurse -Force

}

Write-Verbose -Message "Restoring tools from NuGet..."

$NuGetOutput = Invoke-Expression "& $env:NUGET_EXE_INVOCATION install -ExcludeVersion -OutputDirectory `"$TOOLS_DIR`""

if ($LASTEXITCODE -ne 0) {

Throw "An error occurred while restoring NuGet tools."

}

else

{

$md5Hash | Out-File $PACKAGES_CONFIG_MD5 -Encoding "ASCII"

}

Write-Verbose -Message ($NuGetOutput | Out-String)

Pop-Location

}

if (Test-Path $ADDINS_PACKAGES_CONFIG) {

Push-Location

Set-Location $ADDINS_DIR

Write-Verbose -Message "Restoring addins from NuGet..."

$NuGetOutput = Invoke-Expression "& $env:NUGET_EXE_INVOCATION install -ExcludeVersion -OutputDirectory `"$ADDINS_DIR`""

if ($LASTEXITCODE -ne 0) {

Throw "An error occurred while restoring NuGet addins."

}

Write-Verbose -Message ($NuGetOutput | Out-String)

Pop-Location

}

if (Test-Path $MODULES_PACKAGES_CONFIG) {

Push-Location

Set-Location $MODULES_DIR

Write-Verbose -Message "Restoring modules from NuGet..."

$NuGetOutput = Invoke-Expression "& $env:NUGET_EXE_INVOCATION install -ExcludeVersion -OutputDirectory `"$MODULES_DIR`""

if ($LASTEXITCODE -ne 0) {

Throw "An error occurred while restoring NuGet modules."

}

Write-Verbose -Message ($NuGetOutput | Out-String)

Pop-Location

}

if (!(Test-Path $CAKE_EXE)) {

Throw "Could not find Cake.exe at $CAKE_EXE"

}

$CAKE_EXE_INVOCATION = if ($IsLinux -or $IsMacOS) {

"mono `"$CAKE_EXE`""

} else {

"`"$CAKE_EXE`""

}

# Build an array (not a string) of Cake arguments to be joined later

$cakeArguments = @()

if ($Script) { $cakeArguments += "`"$Script`"" }

if ($Target) { $cakeArguments += "-target=`"$Target`"" }

if ($Configuration) { $cakeArguments += "-configuration=$Configuration" }

if ($Verbosity) { $cakeArguments += "-verbosity=$Verbosity" }

if ($ShowDescription) { $cakeArguments += "-showdescription" }

if ($DryRun) { $cakeArguments += "-dryrun" }

$cakeArguments += $ScriptArgs

Write-Host "Running build script..."

Invoke-Expression "& $CAKE_EXE_INVOCATION $($cakeArguments -join " ")"

exit $LASTEXITCODE