Forcing nuget.org in nuget provider

[mandalorianbob]

The documentation for the Nuget Provider at https://cakebuild.net/docs/writing-builds/preprocessor-directives/tool/nuget-provider says

By default, the provider will attempt to install tools from nuget.org.

But it apparently actually uses the providers that are specified in the local nuget config, because it keeps giving me errors about

Unable to load the service index for source [URI to private nuget feed hosted on AzDO].

I tried

.InstallTool(new Uri("nuget:https://www.nuget.org?package=7-Zip.CommandLine"))

But got

An error occurred while retrieving package metadata for '7-Zip.CommandLine' from source 'https://www.nuget.org/'

So I'm wondering how I can force the nuget provider to use nuget.org.

[gitfool]

Besides any support in Cake itself, would the source mapping feature of NuGet 6.0 be a better way to enforce such desired behavior?

[mandalorianbob]

I like the idea of that, and it would probably work in a single Cake project. But I'm actually distributing my Cake tasks to my team via the same NuGet private feed, which we've actually set up to be a downstream feed from Nuget.org.

The source mapping looks like it requires a nuget.config. If I could somehow specify source mapping in my library/nuget package, it'd probably be fine. But since it doesn't look like I can, it means I'd have to have my team set up a special nuget.config for the build projects they create that use my library.

That's a pretty good workaround, but I'd rather my library be self-contained. So it'd work a lot better for me if it actually did just preference nuget.org.

[mandalorianbob]

Oh actually I can't use this workaround at the moment. I can't mix private and public feeds. I had forgotten about that.

[pascalberger]

https://www.nuget.org is the URL of the website, the feed URL for nuget.org is https://api.nuget.org/v3/index.json.

Replace

.InstallTool(new Uri("nuget:https://www.nuget.org?package=7-Zip.CommandLine"))

With

.InstallTool(new Uri("nuget:https://api.nuget.org/v3/index.json?package=7-Zip.CommandLine"))

[mandalorianbob]

Thanks!

[nick5454]

I add a nuget.config to my build folders to provide both private and public feeds. Here's my file which works well to preload my private feeds for the build.

`
configuration>
packageRestore>
add key="enabled" value="True" />

	<!-- Automatically check for missing packages during build in Visual Studio -->
	<add key="automatic" value="True" />
</packageRestore>

<!--
	Used to specify the default Sources for list, install and update.
	See: nuget.exe help list
	See: nuget.exe help install
	See: nuget.exe help update
-->
<packageSources>
	<add key="NuGet official package source" value="https://api.nuget.org/v3/index.json" />
	<add key="smarts" value="https://pkgs.dev.azure.com/orgname/_packaging/feedname/nuget/v3/index.json" />
</packageSources>

<!-- Used to store credentials -->
<packageSourceCredentials>
	<smarts>
		<add key="Username" value="VSTS" />
		<add key="ClearTextPassword"  value="%NUGET_AUTH_TOKEN%" />
	</smarts>
</packageSourceCredentials>

<!-- Used to disable package sources  -->
<disabledPackageSources />

<!--
	Used to specify default API key associated with sources.
	See: nuget.exe help setApiKey
	See: nuget.exe help push
	See: nuget.exe help mirror
-->
<!--<apikeys>
	<add key="https://MyRepo/ES/api/v2/package" value="encrypted_api_key" />
</apikeys>-->

<!--
	Used to specify trusted signers to allow during signature verification.
	See: nuget.exe help trusted-signers
-->

`

The nuget_auth_token is just $(System.AccessToken) so the private organization feeds in azure always have rights. This preloads the feed without needing to specify them