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The NuGet Transitive Dependency Finder analyzes .NET projects and solutions to find superfluous dependencies that have been explicitly added to projects. The goal is to simplify dependency management.

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NuGet Transitive Dependency Finder

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The NuGet Transitive Dependency Finder analyzes .NET projects and solutions to find superfluous dependencies that have been explicitly added to projects. The goal is to simplify dependency management.

.NET developers can use this application to find and remove these transitive dependencies. This serves to simplify NuGet package upgrades by avoiding conflicts between explicitly specified package dependencies and those dependencies implicitly specified as part of a package dependency chain.

The solution comprises two projects for finding transitive dependencies:

  • NuGetTransitiveDependencyFinder. This project provides a .NET library that can be used in any application or service for finding transitive dependencies.
  • NuGetTransitiveDependencyFinder.ConsoleApp. This project runs the NuGet transitive dependency finder logic against a specified .NET project or solution. It is expected to be the standard mechanism through which consumers use the NuGet Transitive Dependency Finder.

It is not always possible to remove all transitive dependencies. Some transitive dependencies are required to explicitly specify a dependency version different from that included as part of a package dependency chain, in order to avoid version conflicts. Therefore, removal of these transitive dependencies should be performed iteratively to ascertain which can be removed without introducing errors or warnings into your build process.

Building

Installing Dependencies

To build the NuGet Transitive Dependency Finder, you will need to install:

You can simplify the process by also installing one of the following:

Downloading the Code

The NuGet Transitive Dependency Finder is hosted on GitHub. You can clone it directly using:

git clone git@github.com:muiriswoulfe/NuGet-Transitive-Dependency-Finder.git

Build Process

The easiest way to build the NuGet Transitive Dependency Finder is to open NuGetTransitiveDependencyFinder.sln in one of the following:

Visual Studio Code

  1. Select File > Open...
  2. Navigate to your local copy of NuGetTransitiveDependencyFinder.sln and click Open.
  3. Select View > Command Palette...
  4. In the Command Palette, enter Task: Run Build Task.
  5. In the next Command Palette view, enter Build Debug or Build Release depending on which configuration you wish to build. Most consumers should use the Release configuration.

Visual Studio

  1. Select File > Open > Project/Solution...
  2. Navigate to your local copy of NuGetTransitiveDependencyFinder.sln and click Open.
  3. In the toolbar, click the Solution Configurations dropdown to select the configuration you wish to build. Most consumers should use the Release configuration.
  4. In the Solution Explorer window, right-click on the solution file and select Build Solution.

Command-Line

To build directly from the command-line, enter the command appropriate to which configuration you wish to build:

dotnet build NuGetTransitiveDependencyFinder.sln --configuration Debug
dotnet build NuGetTransitiveDependencyFinder.sln --configuration Release

Most consumers should use the Release configuration.

Using

After building a copy of the solution or downloading a release, the recommended procedure for running the NuGet Transitive Dependency Finder is to enter the following sequence of commands, adapting the path to NuGetTransitiveDependencyFinder.ConsoleApp as necessary:

NuGetTransitiveDependencyFinder.ConsoleApp --projectOrSolution <ProjectOrSolutionToAnalyze> --all > before.txt
NuGetTransitiveDependencyFinder.ConsoleApp --projectOrSolution <ProjectOrSolutionToAnalyze>

<ProjectOrSolutionToAnalyze> should be replaced by the relative or absolute path of the .NET project or solution you wish to analyze for transitive NuGet dependencies. If you are using a local build rather than a release, you will need to use dotnet NuGetTransitiveDependencyFinder.ConsoleApp.dll in place of NuGetTransitiveDependencyFinder.ConsoleApp.

At this point you should remove all dependencies identified as transitive from your projects. Ensure each project or solution continues to build, reinstating any dependencies as appropriate.

Afterwards, enter the following sequence of commands:

NuGetTransitiveDependencyFinder.ConsoleApp --projectOrSolution <ProjectOrSolutionToAnalyze> --all > after.txt
code --diff before.txt after.txt

The last command will open a copy of Visual Studio Code, if available, and highlight the differences between the full set of dependencies before and after transitive dependency removal. To minimize the risk of a regression, the only differences between the two files should be in the build process at the start of the files and in the removal of those dependencies marked as transitive. If there are additional differences, you can choose to reinstate some appropriate dependencies and re-run the last set of commands to ensure this has been remediated.

Note that ensuring the dependencies are identical before and after this process is not strictly required. This step can be skipped depending on your risk appetite and the level of validation that can be undertaken for your project or solution.

Extended Details

The basic mode of operation, which returns only the set of transitive dependencies:

NuGetTransitiveDependencyFinder.ConsoleApp --projectOrSolution <ProjectOrSolutionToAnalyze>

To view the entire collection of dependencies for each project, including both transitive and non-transitive dependencies:

NuGetTransitiveDependencyFinder.ConsoleApp --projectOrSolution <ProjectOrSolutionToAnalyze> --all

This mode is particularly useful for running before and after the removal of transitive dependencies, as it can be used to detect if the removal of a dependency resulted in the change of a different dependency's version. This can occur because the removal of a transitive dependency results in the dependency being pulled in from another dependency, and the version specified in that dependency may differ from the one previously used. To avoid this and therefore mitigate risk when removing transitive dependencies, you can run the NuGet Transitive Dependency Finder in --all mode prior to removal and after removal as per the recommended procedure above, to ascertain whether any dependencies have changed version.

You can also view the full set of command-line options:

NuGetTransitiveDependencyFinder.ConsoleApp --help

SonarCloud Status

The complete SonarCloud analysis for the NuGet Transitive Dependency Finder can be located here.

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About

The NuGet Transitive Dependency Finder analyzes .NET projects and solutions to find superfluous dependencies that have been explicitly added to projects. The goal is to simplify dependency management.

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