dotnet/build/build.cake

#module nuget:?package=Cake.LongPath.Module&version=1.0.1

#addin nuget:?package=Cake.FileHelpers&version=4.0.1
#addin nuget:?package=Cake.Powershell&version=1.0.1
#addin nuget:?package=Cake.GitVersioning&version=3.4.220

#tool nuget:?package=MSTest.TestAdapter&version=2.2.5
#tool nuget:?package=vswhere&version=2.8.4

using System;
using System.Linq;
using System.Text.RegularExpressions;

//////////////////////////////////////////////////////////////////////
// ARGUMENTS
//////////////////////////////////////////////////////////////////////

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

//////////////////////////////////////////////////////////////////////
// VARIABLES
//////////////////////////////////////////////////////////////////////

var baseDir = MakeAbsolute(Directory("../")).ToString();
var binDir = baseDir + "/bin";

//////////////////////////////////////////////////////////////////////
// METHODS
//////////////////////////////////////////////////////////////////////

void VerifyHeaders(bool Replace)
{
    var header = FileReadText("header.txt") + "\r\n";
    bool hasMissing = false;

    Func<IFileSystemInfo, bool> exclude_objDir = fileSystemInfo => !fileSystemInfo.Path.Segments.Contains("obj");

    var files = GetFiles(baseDir + "/**/*.cs", new GlobberSettings { Predicate = exclude_objDir }).Where(file =>
    {
        var path = file.ToString();
        return !(path.EndsWith(".g.cs") || path.EndsWith(".i.cs") || System.IO.Path.GetFileName(path).Contains("TemporaryGeneratedFile"));
    });

    Information("\nChecking " + files.Count() + " file header(s)");

    foreach(var file in files)
    {
        var oldContent = FileReadText(file);

        if(oldContent.Contains("// <auto-generated>") ||
           oldContent.Contains("// <auto-generated/>"))
        {
           continue;
        }

        var rgx = new Regex("^(//.*\r?\n)*\r?\n");
        var newContent = header + rgx.Replace(oldContent, "");

        if(!newContent.Equals(oldContent, StringComparison.Ordinal))
        {
            if(Replace)
            {
                Information("\nUpdating " + file + " header...");
                FileWriteText(file, newContent);
            }
            else
            {
                Error("\nWrong/missing header on " + file);

                hasMissing = true;
            }
        }
    }

    if(!Replace && hasMissing)
    {
        throw new Exception("Please run UpdateHeaders.bat or '.\\build.ps1 -Target UpdateHeaders' and commit the changes.");
    }
}

//////////////////////////////////////////////////////////////////////
// TASK TARGETS
//////////////////////////////////////////////////////////////////////

Task("Clean")
    .Description("Cleans the output folder")
    .Does(() =>
{
    if(DirectoryExists(binDir))
    {
        Information("\nCleaning working directory");
        CleanDirectory(binDir);
    }
    else
    {
        CreateDirectory(binDir);
    }
});

Task("Verify")
    .Description("Verifies the headers in *.cs files")
    .IsDependentOn("Clean")
    .Does(() =>
{
    VerifyHeaders(false);
});

Task("UpdateHeaders")
    .Description("Updates the headers in *.cs files")
    .Does(() =>
{
    VerifyHeaders(true);
});

//////////////////////////////////////////////////////////////////////
// EXECUTION
//////////////////////////////////////////////////////////////////////

RunTarget(target);