build.cake

using System.Xml.Linq;

////////////////////
// Cake arguments //
////////////////////

var target = Argument<string>("target", "Default");
var configuration = Argument<string>("configuration", "Release");

//////////////////////////
// Variable definitions //
//////////////////////////

// Name of the project
var projectName = "XamlAnimatedGif";
// Solution to build
var solutionFile = $"./{projectName}.sln";
// Projects in the solution
var projects = new[]
{
    $"{projectName}.Wpf",
    $"{projectName}.Wpf.4.0",
    $"{projectName}.WinRT"
};
var projectDirsToClean = new[] { "bin", "obj", "AppPackages" };

// Assemblies containing unit tests
var unitTestAssemblies = new string[] { };

// NuGet package ID; change if different from project name
var nugetId = projectName;
// Path to the nuspec file
var nuspecFile = $"./NuGet/{nugetId}.nuspec";
// Directory where the package will be generated
var nugetDir = $"./NuGet/{configuration}";
// Directory containing the package tree
var nupkgDir = $"{nugetDir}/nupkg";
// Files to include in NuGet package for each target
var nugetTargets = new[]
{
    new { Name = "net45", Files = new[] { $"{projectName}.Wpf/bin/{configuration}/{projectName}.dll" } },
    new { Name = "net40", Files = new[] { $"{projectName}.Wpf.4.0/bin/{configuration}/{projectName}.dll" } },
    new { Name = "portable-win81+wpa81", Files = new[] { $"{projectName}.WinRT/bin/{configuration}/{projectName}.dll" } },
};

//////////////////////
// Setup / Teardown //
//////////////////////

Setup(() =>
{
    // Executed BEFORE the first task.
    Information("Running tasks...");
});

Teardown(() =>
{
    // Executed AFTER the last task.
    Information("Finished running tasks.");
});

//////////////////////
// Task definitions //
//////////////////////

// Clears the output directories
Task("Clean")
    .Does(() =>
{
    var dirsToClean =
        from p in projects
        from d in projectDirsToClean
        select $"{p}/{d}";
    CleanDirectories(dirsToClean);
    CleanDirectory(nugetDir);
});

// Builds the solution
Task("Build")
    .IsDependentOn("Clean")
    .Does(() =>
{
    foreach (var project in projects)
    {
        MSBuild(
            $"{project}/{project}.csproj",
            settings => settings.SetConfiguration(configuration));
    }
});

// Runs the unit tests
Task("Test")
    .WithCriteria(unitTestAssemblies.Any())
    .IsDependentOn("Build")
    .Does(() =>
{
    NUnit(unitTestAssemblies);
});

// Creates the NuGet package
Task("Pack")
    .IsDependentOn("Test")
    .Does(() =>
{
    CreateDirectory(nupkgDir);
    foreach (var target in nugetTargets)
    {
        string targetDir = $"{nupkgDir}/lib/{target.Name}";
        CreateDirectory(targetDir);
        foreach (var file in target.Files)
        {
            CopyFileToDirectory(file, targetDir);
        }
    }
    var packSettings = new NuGetPackSettings
    {
        BasePath = nupkgDir,
        OutputDirectory = nugetDir
    };
    NuGetPack(nuspecFile, packSettings);
});

// Pushes the NuGet package to nuget.org
Task("Push")
    .IsDependentOn("Pack")
    .Does(() =>
{
    var doc = XDocument.Load(nuspecFile);
    var ns = XNamespace.Get("http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd");
    string version = doc.Root.Element(ns + "metadata").Element(ns + "version").Value;
    string package = $"{nugetDir}/{nugetId}.{version}.nupkg";
    NuGetPush(package, new NuGetPushSettings());
});

/////////////
// Targets //
/////////////

Task("Default")
    .IsDependentOn("Test");

///////////////
// Execution //
///////////////

RunTarget(target);