How to create a NuGet Package using NuGet.Core?

Question

I would like to create a application which makes use of the NuGet Package NuGet.Core. It has a class called PackageBuilder that makes it possible. Is there any sample / tutorial / documentation available?

Answer 1

I am not aware of any tutorial or documentation on how to build a NuGet package using NuGet.Core. Instead I would take a look at the source code for NuGet.exe. It has a pack command that builds a package from a .nuspec file. The PackCommand class, which uses the PackageBuilder class, should show you what you need to do.

Answer 2

A really simple example:

1. create a folder containing the files you want in your package.

2. Write some code like this:

   
   ManifestMetadata metadata = new ManifestMetadata()
       {
           Authors = "mauvo",
           Version = "1.0.0.0",
           Id =  "myPackageIdentifier",
           Description = "A description",
       };
   
   PackageBuilder builder = new PackageBuilder();
   builder.PopulateFiles("folderPath/", new[] {new ManifestFile() {Source = "**"}});
   builder.Populate(metadata);
   using(FileStream stream = File.Open(packagePath, FileMode.OpenOrCreate))
   {
       builder.Save(stream);
   }
   

Answer 3

An improved example based on David's code. Changes:

• All files in a folder except *.nuspec are added to package.

• A row defining package file name.

  ManifestMetadata metadata = new ManifestMetadata()
  {
      Authors = "mauvo",
      Version = "1.0.0.0",
      Id =  "myPackageIdentifier",
      Description = "A description",
  };
  
  PackageBuilder builder = new PackageBuilder();
  var files = Directory.GetFiles(packagePath, "*", SearchOption.AllDirectories)
      .Where(f => !f.EndsWith(".nuspec"))
      .Select(f => new ManifestFile { Source = f, Target = f.Replace(path, "") })
      .ToList();
  builder.PopulateFiles("", files);
  builder.Populate(metadata);
  string packageFile = Path.Combine(packagePath, builder.GetFullName()) + ".nupkg";
  using(FileStream stream = File.Open(packageFile, FileMode.OpenOrCreate))
  {
      builder.Save(stream);
  }