build.cake

// Usings
using System.Text.RegularExpressions;

// Arguments
var target = Argument<string>("target", "Default");
var source = Argument<string>("source", null);
var apiKey = Argument<string>("apikey", null);

var version = target.ToLower() == "default"
    ? "2.0.0-Pre" + (EnvironmentVariable("APPVEYOR_BUILD_NUMBER") ?? "0")
    : GetNancyVersion(new FilePath("dependencies/Nancy/src/Directory.Build.props"));

// Variables
var projectName = "Nancy.Serialization.JsonNet";
var configuration = "Release";
var fullFrameworkTarget = "net452";
var netStandardTarget = "netstandard1.6";
var netCoreTarget = "netcoreapp1.1";

// Directories
var output = Directory("build");
var outputBinaries = output + Directory("binaries");
var outputBinariesNet452 = outputBinaries + Directory(fullFrameworkTarget);
var outputBinariesNetstandard = outputBinaries + Directory(netStandardTarget);
var outputPackages = output + Directory("packages");
var outputNuGet = output + Directory("nuget");

/*
/ TASK DEFINITIONS
*/

Task("Default")
    .IsDependentOn("Test")
    .IsDependentOn("Package-NuGet");

Task("Clean")
    .Does(() =>
    {
        // Clean artifact directories.
        CleanDirectories(new DirectoryPath[] {
            output,
            outputBinaries,
            outputPackages,
            outputNuGet,
            outputBinariesNet452,
            outputBinariesNetstandard
        });

        // Clean output directories.
        CleanDirectories("./src/**/" + configuration);
        CleanDirectories("./test/**/" + configuration);
    });

Task("Compile")
    .Description("Builds all the projects in the solution")
    .IsDependentOn("Clean")
    .IsDependentOn("Update-Version")
    .IsDependentOn("Restore-NuGet-Packages")
    .Does(() =>
    {
        var projects =
            GetFiles("./src/**/*.csproj") +
            GetFiles("./test/**/*.csproj") -
            GetFiles("./samples/**/*.csproj");

        if (projects.Count == 0)
        {
            throw new CakeException("Unable to find any projects to build.");
        }

        foreach(var project in projects)
        {
            var content =
                System.IO.File.ReadAllText(project.FullPath, Encoding.UTF8);

            if (IsRunningOnUnix() && content.Contains(">" + fullFrameworkTarget + "<"))
            {
                Information(project.GetFilename() + " only supports " +fullFrameworkTarget + " and cannot be built on *nix. Skipping.");
                continue;
            }

            DotNetCoreBuild(project.GetDirectory().FullPath, new DotNetCoreBuildSettings {
                ArgumentCustomization = args => {
                    if (IsRunningOnUnix())
                    {
                        args.Append(string.Concat("-f ", project.GetDirectory().GetDirectoryName().Contains(".Tests") ? netCoreTarget : netStandardTarget));
                    }

                    return args;
                },
                Configuration = configuration
            });
        }
    });

Task("Package")
    .Description("Zips up the built binaries for easy distribution")
    .IsDependentOn("Publish")
    .Does(() =>
    {
        var package =
            outputPackages + File(string.Concat(projectName, "-Latest.zip"));

        var files =
            GetFiles(outputBinaries.Path.FullPath + "/**/*");

        Zip(outputBinaries, package, files);
    });

Task("Package-NuGet")
    .Description("Generates NuGet packages for each project")
    .Does(() =>
    {
        foreach(var project in GetFiles("./src/**/*.csproj"))
        {
            DotNetCorePack(project.GetDirectory().FullPath, new DotNetCorePackSettings {
                Configuration = configuration,
                OutputDirectory = outputNuGet
            });
        }
    });

Task("Publish")
    .Description("Gathers output files and copies them to the output folder")
    .IsDependentOn("Compile")
    .Does(() =>
    {
        // Copy net452 binaries.
        CopyFiles(GetFiles("./src/**/bin/" + configuration + "/" + fullFrameworkTarget + "/*.dll")
            + GetFiles("./src/**/bin/" + configuration + "/" + fullFrameworkTarget + "/*.xml")
            + GetFiles("./src/**/bin/" + configuration + "/" + fullFrameworkTarget + "/*.pdb")
            + GetFiles("./src/**/*.ps1"), outputBinariesNet452);

        // Copy netstandard binaries.
        CopyFiles(GetFiles("./src/**/bin/" + configuration + "/" + netStandardTarget + "/*.dll")
            + GetFiles("./src/**/bin/" + configuration + "/" + netStandardTarget + "/*.xml")
            + GetFiles("./src/**/bin/" + configuration + "/" + netStandardTarget + "/*.pdb")
            + GetFiles("./src/**/*.ps1"), outputBinariesNetstandard);
    });

Task("Publish-NuGet")
    .Description("Pushes the nuget packages in the nuget folder to a NuGet source. Also publishes the packages into the feeds.")
    .Does(() =>
    {
        if(string.IsNullOrWhiteSpace(apiKey))
        {
            throw new CakeException("No NuGet API key provided. You need to pass in --apikey=\"xyz\"");
        }

        var packages =
            GetFiles(outputNuGet.Path.FullPath + "/*.nupkg") -
            GetFiles(outputNuGet.Path.FullPath + "/*.symbols.nupkg");

        foreach(var package in packages)
        {
            NuGetPush(package, new NuGetPushSettings {
                Source = source,
                ApiKey = apiKey
            });
        }
    });

Task("Restore-NuGet-Packages")
    .Description("Restores NuGet packages for all projects")
    .Does(() =>
    {
        DotNetCoreRestore(new DotNetCoreRestoreSettings {
            ArgumentCustomization = args => {
                args.Append("--verbosity minimal");
                return args;
            }
        });
    });

Task("Test")
    .Description("Executes unit tests for all projects")
    .IsDependentOn("Compile")
    .Does(() =>
    {
        var projects =
            GetFiles("./test/**/*.csproj");

        if (projects.Count == 0)
        {
            throw new CakeException("Unable to find any projects to test.");
        }

        foreach(var project in projects)
        {
            var content =
                System.IO.File.ReadAllText(project.FullPath, Encoding.UTF8);

            if (IsRunningOnUnix() && content.Contains(">" + fullFrameworkTarget + "<"))
            {
                Information(project.GetFilename() + " only supports " +fullFrameworkTarget + " and tests cannot be executed on *nix. Skipping.");
                continue;
            }

            var settings = new ProcessSettings {
                Arguments = string.Concat("xunit -configuration ", configuration, " -nobuild"),
                WorkingDirectory = project.GetDirectory()
            };

            if (IsRunningOnUnix())
            {
                settings.Arguments.Append(string.Concat("-framework ", netCoreTarget));
            }

            Information("Executing tests for " + project.GetFilename() + " with arguments: " + settings.Arguments.Render());

            if (StartProcess("dotnet", settings) != 0)
            {
                throw new CakeException("One or more tests failed during execution of: " + project.GetFilename());
            }
        }
    });

Task("Update-Version")
    .Does(() =>
    {
        Information("Setting version to " + version);

        if(string.IsNullOrWhiteSpace(version))
        {
            throw new CakeException("No version specified! You need to pass in --targetversion=\"x.y.z\"");
        }

        var file =
            MakeAbsolute(File(string.Concat("./src/", projectName, "/", projectName, ".csproj")));

        Information(file.FullPath);

        var project =
            System.IO.File.ReadAllText(file.FullPath, Encoding.UTF8);

        var projectVersion =
            new Regex(@"<Version>.+<\/Version>");

        project =
            projectVersion.Replace(project, string.Concat("<Version>", version, "</Version>"));

        System.IO.File.WriteAllText(file.FullPath, project, Encoding.UTF8);
    });

/*
/ RUN BUILD TARGET
*/

RunTarget(target);

/*
/ HELPER FUNCTIONS
*/

public static string GetNancyVersion(FilePath filePath)
{
    var project =
        System.IO.File.ReadAllText(filePath.FullPath, Encoding.UTF8);

    return Regex.Match(project, "<Version>(.+)</Version>").Groups[1].ToString();
}