以编程方式为本地存储库创建NuGet包

时间:2014-10-16 14:21:50

标签: c# c#-4.0 nuget

我正在编写一个控制台应用程序来创建NuGet包(使用Nuget.Core库),它将托管在我们的内部服务器上以部署到我们的应用程序中。当我们使用NuGet Package Explorer手动创建包时,这一切都正常,但我们现在需要自动执行此过程。

我将以下代码拼凑在一起以自动构建包,但我在行builder.Populate(packageMetadata);

上收到错误

错误是:

Value cannot be null.

Parameter name: source

这是堆栈跟踪:

at System.Linq.Enumerable.Select[TSource,TResult](IEnumerable`1 source, Func`2 selector)
at NuGet.PackageBuilder.Populate(ManifestMetadata manifestMetadata)
at BuildPackage.Create(String packageName, String path, String description) in c:\Source Code\Visual Studio Projects\Tools\Console Applications\NuGet Package Builder\BuildPackage.cs:line 134

我已经看过NuGet的源代码(请参阅here),但我无法弄清楚导致它的原因。

关于以下代码的一些注释:

  • 前两个区域只是为了找出新包的版本号,你可以忽略它们
  • ReferencePaths.NuGetPackages是本地NuGet存储库路径的静态字符串
  • 此代码使用packageName和提供的路径
  • 获取构建的DLL和PDB文件

以下是代码:

class BuildPackage
{
    public static void Create(string packageName, string path, string description)
    {
        try
        {
            #region Get the current package version

            int major = 0;
            int minor = 0;
            int packageNo = 0;
            List<string> files = Directory.EnumerateFiles(ReferencePaths.NuGetPackages, packageName + "*").ToList();

            if (files.Count > 0)
            {
                foreach (string file in files)
                {
                    string[] versions = file.Replace(ReferencePaths.NuGetPackages, "").Replace(packageName + ".", "").Replace(".nupkg", "").Split('.');
                    int newMajor = Convert.ToInt32(versions[0]);
                    int newMinor = Convert.ToInt32(versions[1]);
                    int newPackageNo = Convert.ToInt32(versions[2]);

                    // Figure out if this is the latest package
                    if (newMajor > major ||
                        (newMajor == major && newMinor > minor) ||
                        (newMajor == major && newMinor == minor && newPackageNo > packageNo))
                    {
                        major = newMajor;
                        minor = newMinor;
                        packageNo = newPackageNo;
                    }
                }
            }

            #endregion Get the current package version

            #region Get the new assembly version

            FileVersionInfo version = FileVersionInfo.GetVersionInfo(path + packageName + ".dll");

            if (version.FileMajorPart > major ||
                (version.FileMajorPart == major && version.FileMinorPart > minor))
            {
                major = version.FileMajorPart;
                minor = version.FileMinorPart;
                packageNo = 0;
            }
            else
            {
                while (File.Exists(ReferencePaths.NuGetPackages + packageName + "." + major.ToString() + "." + minor.ToString() + "." + packageNo.ToString() + ".nupkg"))
                {
                    packageNo++;
                }
            }

            #endregion Get the new assembly version

            #region Create the package

            string packageVersion = major.ToString() + "." + minor.ToString() + "." + packageNo.ToString();
            string newPackageName = packageName + "." + packageVersion + ".nupkg";
            ManifestMetadata packageMetadata = new ManifestMetadata();
            packageMetadata.Id = packageName;
            packageMetadata.Version = packageVersion;
            packageMetadata.Authors = "Test";
            packageMetadata.Description = description;

            List<ManifestFile> manifestFiles = new List<ManifestFile>();
            ManifestFile dllFile = new ManifestFile();
            dllFile.Source = packageName + ".dll";
            dllFile.Target = @"lib\" + packageName + ".dll";
            manifestFiles.Add(dllFile);
            ManifestFile pdbFile = new ManifestFile();
            pdbFile.Source = packageName + ".pdb";
            pdbFile.Target = @"lib\" + packageName + ".pdb";
            manifestFiles.Add(pdbFile); 

            PackageBuilder builder = new PackageBuilder();
            builder.PopulateFiles(path, manifestFiles);
            builder.Populate(packageMetadata);
            using (FileStream stream = File.Open(ReferencePaths.NuGetPackages + newPackageName, FileMode.OpenOrCreate))
            {
                builder.Save(stream);
            }

            #endregion Create the package

            Console.WriteLine("New package created: " + newPackageName);
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.Message);
        }
    }
}

有谁知道什么可能是错的?我是否需要ManifestMetadata中的更多信息?我试着填写我能想到的所有属性,但它没有帮助。

1 个答案:

答案 0 :(得分:0)

好吧,我尝试了几种不同的方法来做同样的事情,但没有任何效果。所以我注意到http://nuget.codeplex.com/SourceControl上的代码版本都是v2.0向上,并决定检查我引用的DLL(这是.NET 4.0或4.5版本),我注意到我的NuGet.Core参考是对于版本1.6.3。

所以,我使用NuGet包管理器来获取最新版本的NuGet.Core(在编写本文时为v2.8.5),现在上面的确切代码工作得很好! *

Alanis Morissette可能会说具有讽刺意味。

  • 我确实需要在保存之前更改File.Open,因为我错过了文件名。