Source nuget declaration

[JPaja]

Main idea is to create way to share single file c# as script and share it as such, without need for .csproj for nuget links.

Possible solutions would be

package Newtonsoft.Json;

using System;
using Newtonsoft.Json;

Console.WriteLine("Hello world!");

Possible keywords for nuget package

package
nuget
install

Another issue would be to specify version, where user could pick between concrete version like

12.0.3
13.0.1-beta1

or latest, preview (beta) and latestMajor (default)

Possible styles would be:

Comma separated

package Newtonsoft.Json, 12.0.3;
package Newtonsoft.Json, 13.0.1-beta1;
package Newtonsoft.Json, latest;
package Newtonsoft.Json, preview;

Attribute

[Version("latest")] 
package Newtonsoft.Json;

[Version("preview")] 
package Newtonsoft.Json;

[Version("12.0.3")]
package Newtonsoft.Json;

[Version("13.0.1-beta1")]
package Newtonsoft.Json;

[HaloFour]

IMO if there was a desire to add such support it could be done entirely with custom attributes and not require any specific language support.

[assembly: Package("Newtonsoft.Json", Version="latest")]

[canton7]

Things like dotnet-script and csx use e.g.

#r "nuget: AutoMapper, 6.1.0"

[JPaja]

Hmm yes dotnet-script seems nice also also I totally forgot about feature to set .net version and language version.
Maybe dotnet team can do some official way to do single file scripts similar to dotnet-script
that would be officially supported by roslyn and dotnet

[CyrusNajmabadi]

FWIW when i see package Newtonsoft.Json; it totally makes me think you're declaring the package that your symbols will belong to.