build.ps1

#The MIT License (MIT)
#
#Copyright (c) 2014 - 2016 Patrik Svensson, Mattias Karlsson, Gary Ewan Park and contributors
#
#Permission is hereby granted, free of charge, to any person obtaining a copy of
#this software and associated documentation files (the "Software"), to deal in
#the Software without restriction, including without limitation the rights to
#use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
#the Software, and to permit persons to whom the Software is furnished to do so,
#subject to the following conditions:
#
#The above copyright notice and this permission notice shall be included in all
#copies or substantial portions of the Software.
#
#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
#IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
#FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
#COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
#IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
#CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

##########################################################################
# This is the Cake bootstrapper script for PowerShell.
# This file was downloaded from https://github.com/cake-build/resources
# Feel free to change this file to fit your needs.
##########################################################################

<#

.SYNOPSIS
This is a Powershell script to bootstrap a Cake build.

.DESCRIPTION
This Powershell script will download NuGet if missing, restore NuGet tools (including Cake)
and execute your Cake build script with the parameters you provide.

.PARAMETER Script
The build script to execute.
.PARAMETER Target
The build script target to run.
.PARAMETER Configuration
The build configuration to use.
.PARAMETER Verbosity
Specifies the amount of information to be displayed.
.PARAMETER ShowDescription
Shows description about tasks.
.PARAMETER DryRun
Performs a dry run.
.PARAMETER Experimental
Uses the nightly builds of the Roslyn script engine.
.PARAMETER Mono
Uses the Mono Compiler rather than the Roslyn script engine.
.PARAMETER SkipToolPackageRestore
Skips restoring of packages.
.PARAMETER ScriptArgs
Remaining arguments are added here.

.LINK
https://cakebuild.net

#>

[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]$Experimental,
    [switch]$Mono,
    [switch]$SkipToolPackageRestore,
    [Parameter(Position=0,Mandatory=$false,ValueFromRemainingArguments=$true)]
    [string[]]$ScriptArgs
)

[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"

# Make sure tools folder exists
if ((Test-Path $PSScriptRoot) -and !(Test-Path $TOOLS_DIR)) {
    Write-Verbose -Message "Creating tools directory..."
    New-Item -Path $TOOLS_DIR -Type directory | out-null
}

# Make sure that packages.config exist.
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."
    }
}

# Try find NuGet.exe in path if not exists
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
    }
}

# Try download NuGet.exe if not exists
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."
    }
}

# Save nuget.exe path to environment to be available to child processed
$ENV:NUGET_EXE = $NUGET_EXE

# Restore tools from NuGet?
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..."
        Remove-Item * -Recurse -Exclude packages.config,nuget.exe
    }

    Write-Verbose -Message "Restoring tools from NuGet..."
    $NuGetOutput = Invoke-Expression "&`"$NUGET_EXE`" 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
}

# Restore addins from NuGet
if (Test-Path $ADDINS_PACKAGES_CONFIG) {
    Push-Location
    Set-Location $ADDINS_DIR

    Write-Verbose -Message "Restoring addins from NuGet..."
    $NuGetOutput = Invoke-Expression "&`"$NUGET_EXE`" 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
}

# Restore modules from NuGet
if (Test-Path $MODULES_PACKAGES_CONFIG) {
    Push-Location
    Set-Location $MODULES_DIR

    Write-Verbose -Message "Restoring modules from NuGet..."
    $NuGetOutput = Invoke-Expression "&`"$NUGET_EXE`" 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
}

# Make sure that Cake has been installed.
if (!(Test-Path $CAKE_EXE)) {
    Throw "Could not find Cake.exe at $CAKE_EXE"
}



# Build Cake arguments
$cakeArguments = @("$Script");
if ($Target) { $cakeArguments += "-target=$Target" }
if ($Configuration) { $cakeArguments += "-configuration=$Configuration" }
if ($Verbosity) { $cakeArguments += "-verbosity=$Verbosity" }
if ($ShowDescription) { $cakeArguments += "-showdescription" }
if ($DryRun) { $cakeArguments += "-dryrun" }
if ($Experimental) { $cakeArguments += "-experimental" }
if ($Mono) { $cakeArguments += "-mono" }
$cakeArguments += $ScriptArgs

# Start Cake
Write-Host "Running build script..."
&$CAKE_EXE $cakeArguments
exit $LASTEXITCODE