I am using Nuget to create packages. I would like to create a package which does not contain any dependencies (in the .nuspec
) file to any other NuGet packages. My project does have NuGet package dependencies defined in its packages.config
file.
First I create the .nuspec
file...
C:\code\MySolution>.nuget\nuget.exe spec MyProject\MyProject.csproj
I edit the generated .nuspec
file to be minimal, with no dependencies.
<?xml version="1.0"?> <package > <metadata> <id>MyProject</id> <version>1.2.3</version> <title>MyProject</title> <authors>Example</authors> <owners>Example</owners> <requireLicenseAcceptance>false</requireLicenseAcceptance> <description>Example</description> <copyright>Copyright 2013 Example</copyright> <tags>example</tags> <dependencies /> </metadata> </package>
Then I build the solution and create a NuGet package...
C:\code\MySolution>.nuget\nuget.exe pack MyProject\MyProject.csproj -Verbosity detailed
Here is the output of that command...
Attempting to build package from 'MyProject.csproj'. Packing files from 'C:\code\MySolution\MyProject\bin\Debug'. Using 'MyProject.nuspec' for metadata. Found packages.config. Using packages listed as dependencies Id: MyProject Version: 1.2.3 Authors: Example Description: Example Tags: example Dependencies: Google.ProtocolBuffers (= 2.4.1.473) Added file 'lib\net40\MyProject.dll'. Successfully created package 'C:\code\MySolution\MyProject.1.2.3.nupkg'.
The .nupkg
package that is created has a .nuspec
file contained within it but it includes a dependencies section which I did not have in the original .nuspec
file...
<dependencies> <dependency id="Google.ProtocolBuffers" version="2.4.1.473" /> </dependencies>
I believe this is happening because of this... (from the output above)
Found packages.config. Using packages listed as dependencies
How can I make NuGet not automatically resolve dependencies and insert them into the .nuspec
file which is generated from the pack
command?
I am using NuGet 2.2 currently. Also, I don't think that this behaviour happened in older version of NuGet; is this a new "feature"? I couldn't find any documentation describing this "feature" or when it was implemented.
Any time a package is installed or reinstalled, which includes being installed as part of a restore process, NuGet also installs any additional packages on which that first package depends. Those immediate dependencies might then also have dependencies on their own, which can continue to an arbitrary depth.
The packages. config file is used in some project types to maintain the list of packages referenced by the project. This allows NuGet to easily restore the project's dependencies when the project is to be transported to a different machine, such as a build server, without all those packages.
In version 2.7 there is an option called developmentDependency that can be set into package.config to avoid including dependency.
<?xml version="1.0" encoding="utf-8"?> <packages> <package id="jQuery" version="1.5.2" /> <package id="netfx-Guard" version="1.3.3.2" developmentDependency="true" /> <package id="microsoft-web-helpers" version="1.15" /> </packages>
As of NuGet 2.7 there is a new developmentDependency attribute that can be added to a package
node in your project's packages.config
file. So if your project includes a NuGet package that you don't want your NuGet package to include as a dependency, you can use this attribute like so:
<?xml version="1.0" encoding="utf-8"?> <packages> <package id="CreateNewNuGetPackageFromProjectAfterEachBuild" version="1.8.1-Prerelease1" targetFramework="net45" developmentDependency="true" /> </packages>
The important bit that you need to add here is developmentDependency="true"
.
If you are creating a development NuGet package for others to consume, that you know they will not want to have as a dependency in their packages, then you can avoid users having to manually add that attribute to their packages.config file by using the NuGet 2.8 developmentDependency
attribute in the metadata section of your .nuspec file. This will automatically add the developmentDependency attribute to the packages.config file when the your package is installed by others. The catch here is that it requires the user to have at least NuGet 2.8 installed. Luckily, we can make use of the NuGet 2.5 minClientVersion attribute to ensure that users have at least v2.8 installed; otherwise they will be notified that they need to update their NuGet client before they can install the package.
I have a development NuGet package that this was perfect for. Here is what my .nuspec file looks like, showing how to use the minClientVersion and developmentDependency attributes (lines 3 and 20 respectively):
<?xml version="1.0" encoding="utf-8"?> <package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd"> <metadata minClientVersion="2.8"> <id>CreateNewNuGetPackageFromProjectAfterEachBuild</id> <version>1.8.1-Prerelease1</version> <title>Create New NuGet Package From Project After Each Build</title> <authors>Daniel Schroeder,iQmetrix</authors> <owners>Daniel Schroeder,iQmetrix</owners> <licenseUrl>https://newnugetpackage.codeplex.com/license</licenseUrl> <projectUrl>https://newnugetpackage.codeplex.com/wikipage?title=NuGet%20Package%20To%20Create%20A%20NuGet%20Package%20From%20Your%20Project%20After%20Every%20Build</projectUrl> <requireLicenseAcceptance>false</requireLicenseAcceptance> <description>Automatically creates a NuGet package from your project each time it builds. The NuGet package is placed in the project's output directory. If you want to use a .nuspec file, place it in the same directory as the project's project file (e.g. .csproj, .vbproj, .fsproj). This adds a PostBuildScripts folder to your project to house the PowerShell script that is called from the project's Post-Build event to create the NuGet package. If it does not seem to be working, check the Output window for any errors that may have occurred.</description> <summary>Automatically creates a NuGet package from your project each time it builds.</summary> <releaseNotes>- Changed to use new NuGet built-in method of marking this package as a developmentDependency (now requires NuGet client 2.8 or higher to download this package).</releaseNotes> <copyright>Daniel Schroeder 2013</copyright> <tags>Auto Automatic Automatically Build Pack Create New NuGet Package From Project After Each Build On PowerShell Power Shell .nupkg new nuget package NewNuGetPackage New-NuGetPackage</tags> <developmentDependency>true</developmentDependency> </metadata> <files> <file src="..\New-NuGetPackage.ps1" target="content\PostBuildScripts\New-NuGetPackage.ps1" /> <file src="Content\NuGet.exe" target="content\PostBuildScripts\NuGet.exe" /> <file src="Content\BuildNewPackage-RanAutomatically.ps1" target="content\PostBuildScripts\BuildNewPackage-RanAutomatically.ps1" /> <file src="Content\UploadPackage-RunManually.ps1" target="content\PostBuildScripts\UploadPackage-RunManually.ps1" /> <file src="Content\UploadPackage-RunManually.bat" target="content\PostBuildScripts\UploadPackage-RunManually.bat" /> <file src="tools\Install.ps1" target="tools\Install.ps1" /> <file src="tools\Uninstall.ps1" target="tools\Uninstall.ps1" /> </files> </package>
If you don't want to force your users to have at least NuGet v2.8 installed before they can use your package, then you can use the solution I came up with and blogged about before the NuGet 2.8 developmentDependency attribute existed.
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