如何以编程方式安装NuGet包?
我想以编程方式将NuGet包安装到项目中,并更新.csproj
文件和packages.config
文件。
我正在使用官方的Nuget.core
框架,其源代码可在此处获取: https : //github.com/NuGet/NuGet2
我没有使用NuGet包: https : //www.nuget.org/packages/NuGet.Core/但是在GitHub上找到的源代码能够进行一些调试。
注意:我使用的是
2.11
版而不是2.13
我可以在所需的目录下载一个包并更新packages.config
文件:
// ---- Download and install a package at a desired path ---- string packageID = "Newtonsoft.json"; var sourceUri = new Uri("https://packages.nuget.org/api/v2"); // Return an IPackage var package = GetNugetPackage(packageID, sourceUri); IPackageRepository sourceRepository = PackageRepositoryFactory.Default.CreateRepository(sourceUri.ToString()); string packagesPath = "../../TestFiles/packages"; PackageManager packageManager = new PackageManager(sourceRepository, packagesPath); packageManager.InstallPackage(packageID, SemanticVersion.Parse(package.Version.ToFullString())); // ---- Update the 'packages.config' file ---- var packageReferenceFile = new PackageReferenceFile("../../TestFiles/packages.config"); // Get the target framework of the current project to add --> targetframework="net452" attribute in the package.config file var currentTargetFw = Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(TargetFrameworkAttribute), false); var targetFrameworkAttribute = ((TargetFrameworkAttribute[])currentTargetFw).FirstOrDefault(); // Update the packages.config file packageReferenceFile.AddEntry(package.GetFullName(), SemanticVersion.Parse(package.Version.ToFullString()), false, new FrameworkName(targetFrameworkAttribute.FrameworkName));
现在我需要更新.csproj
,这是一个棘手的部分……
这是我到目前为止所尝试的:
string csprojFilePath = "../../TestFiles/test.csproj"; var project = new MSBuildProjectSystem(csprojFilePath); string pathToAnExistingNugetPackageDll = "../../TestFiles/packages/Newtonsoft.json/lib/net45/Newtonsoft.json.dll" project.AddReference(pathToAnExistingNugetPackageDll, Stream.Null); project.Save();
这段代码更新.csproj
文件,它添加一个新的reference
节点,如下所示:
..\packages\Newtonsoft.json\lib\net45\Newtonsoft.json.dll
但我需要一个完整的 reference
节点,如下所示:
..\packages\Newtonsoft.json\lib\net45\Newtonsoft.json.dll True
我该怎么做 ?
感谢@MattWard和@bashis ,我编写了自己的代码生成器:
因此,要在给定的.csproj
正确添加引用,这就是我所做的:
var CsprojDoc = new XmlDocument(); CsprojDoc.LoadXml("*your_csproj_content*"); var Nsmgr = new XmlNamespaceManager(CsprojDoc.NameTable); Nsmgr.AddNamespace("x", "http://schemas.microsoft.com/developer/msbuild/2003"); IPackage packageInfos = GetNugetPackage(packageId, packageRepositoryUri); XmlNode referenceNode = CsprojDoc.CreateNode(XmlNodeType.Element, "Reference", XmlNamespaceValue); XmlAttribute includeAttribute = CsprojDoc.CreateAttribute("Include"); var targetFwProfile = CsprojDoc.SelectSingleNode("//x:TargetFrameworkProfile", Nsmgr); string targetFrameworkProfile = string.Empty; if (!string.IsNullOrEmpty(targetFwProfile?.InnerXml)) { targetFrameworkProfile = targetFwProfile.InnerXml; } var targetFwAttribute = GetTargetFrameworkFromCsproj(); Regex p = new Regex(@"\d+(\.\d+)+"); Match m = p.Match(targetFwAttribute.FrameworkName); Version targetFwVersion = Version.Parse(m.Value); // Get the package's assembly reference matching the target framework from the given '.csproj'. var assemblyReference = packageInfos.AssemblyReferences .Where(a => a.TargetFramework.Identifier.Equals(targetFwAttribute.FrameworkName.Split(',').First())) .Where(a => a.TargetFramework.Profile.Equals(targetFrameworkProfile)) .Last(a => (a.TargetFramework.Version.Major.Equals(targetFwVersion.Major) && a.TargetFramework.Version.Minor.Equals(targetFwVersion.Minor)) || a.TargetFramework.Version.Major.Equals(targetFwVersion.Major)); DownloadNugetPackage(packageInfos.Id, packageRepositoryUri, packagesFolderPath, packageInfos.Version.ToFullString()); string dllAbsolutePath = Path.GetFullPath($"{packagesFolderPath}\\{packageInfos.GetFullName().Replace(' ', '.')}\\{assemblyReference.Path}"); var assemblyInfos = Assembly.LoadFile(dllAbsolutePath); includeAttribute.Value = $"{assemblyInfos.FullName}, processorArchitecture=MSIL"; referenceNode.Attributes.Append(includeAttribute); XmlNode hintPathNode = CsprojDoc.CreateNode(XmlNodeType.Element, "HintPath", XmlNamespaceValue); XmlNode privateNode = CsprojDoc.CreateNode(XmlNodeType.Element, "Private", XmlNamespaceValue); hintPathNode.InnerXml = $"$(SolutionDir)\\packages\\{assemblyReference.Path}"; privateNode.InnerXml = "True"; referenceNode.AppendChild(hintPathNode); referenceNode.AppendChild(privateNode); var itemGroupNode = CsprojDoc.SelectSingleNode("//x:Project/x:ItemGroup/x:Reference", Nsmgr).ParentNode; itemGroupNode.AppendChild(referenceNode);
这是我的DownloadNugetPackage
方法:
private static void DownloadNugetPackage(string packageId, Uri repoUri, string packagesFolderPath, string version) { IPackageRepository packageRepository = PackageRepositoryFactory.Default.CreateRepository(repoUri.ToString()); PackageManager packageManager = new PackageManager(packageRepository, packagesFolderPath); packageManager.InstallPackage(packageId, SemanticVersion.Parse(version)); }
我的GetTargetFrameworkFromCsproj
public static TargetFrameworkAttribute GetTargetFrameworkFromCsproj() { XmlNode targetFrameworkNode = CsprojDoc.SelectSingleNode("//x:TargetFrameworkVersion", Nsmgr); return new TargetFrameworkAttribute($".NETFramework, Version={targetFrameworkNode.InnerXml}"); }
和我的GetNugetPackage
方法:
public static IPackage GetNugetPackage(string packageId, Uri repoUri, string version = null) { IPackageRepository packageRepository = PackageRepositoryFactory.Default.CreateRepository(repoUri.ToString()); IPackage package; if (!string.IsNullOrEmpty(version)) { package = packageRepository.FindPackagesById(packageId).SingleOrDefault(p => p.Version.ToFullString().Equals(version)); } else { package = packageRepository.FindPackagesById(packageId).SingleOrDefault(p => p.IsLatestVersion); } return package; }
注意:这一次,我使用官方的NuGet包: Nuget.core 2.14 : https : //www.nuget.org/packages/NuGet.Core/
注意2:当我添加一个新的
Reference
节点时,在processorArchitecture
属性中,我对该值进行了硬编码:MSIL
如果你想测试它,你可能会调整一下。
这对我来说很好。
(假设您自己编写代码生成器)
我不确定这是最好的解决方案,但你可以尝试这样的事情:
var assembly = Assembly.LoadFile("path_to_dll"); string info = assembly.FullName; // contains something like "AssemblyName, Version=0.0.0.0, Culture=neutral, PublicKeyToken=foobar"
这将通过加载程序集增加一些开销,但可能会完成这项工作。