XpandPosh

1.0.14

Public/NugetSearch.cs

                                using System;

using System.Collections.Generic;

using System.Linq;

using System.Management.Automation;

using System.Threading;

using System.Threading.Tasks;

using NuGet.Common;

using NuGet.Configuration;

using NuGet.Protocol;

using NuGet.Protocol.Core.Types;

namespace NugetSearch{

    [Cmdlet(VerbsCommon.Get, "NugetPackageSearchMetadata")]

    [OutputType(typeof(IPackageSearchMetadata))]

    [CmdletBinding]

    public class GetNugetPackageSearchMetadata : PSCmdlet{

        [Parameter(Mandatory = true, ValueFromPipeline = true)]

        public string Name{ get; set; } = string.Empty;

        [Parameter]

        public SwitchParameter AllVersions{ get; set; } 

        [Parameter]

        public SwitchParameter IncludePrerelease{ get; set; } =SwitchParameter.Present;

        [Parameter]

        public SwitchParameter IncludeUnlisted{ get; set; } = SwitchParameter.Present;

        protected override void ProcessRecord(){

            base.ProcessRecord();

            try{

                var packageSearchMetadata = Find(Name, IncludeUnlisted, IncludePrerelease).Result;

                if (!AllVersions)

                    packageSearchMetadata = new[]{packageSearchMetadata.Last()};

                WriteObject(packageSearchMetadata, true);

            }

            catch (AggregateException e){

                var flatten = e.Flatten();

                flatten.Flatten().Handle(_ => {

                    if (_ is AggregateException){

                        WriteError(new ErrorRecord(flatten, _.GetType().FullName, ErrorCategory.InvalidOperation, Name));

                        return true;

                    }

                    return false;

                });

            }

        }

        async Task<IEnumerable<IPackageSearchMetadata>> Find(string packageID,bool includeUnlisted, bool includePrerelease){

            var providers = new List<Lazy<INuGetResourceProvider>>();

            providers.AddRange(Repository.Provider.GetCoreV3());

            var packageSource = new PackageSource("https://api.nuget.org/v3/index.json");

            var sourceRepository = new SourceRepository(packageSource, providers);

            var packageMetadataResource = await sourceRepository.GetResourceAsync<PackageMetadataResource>();

            return await packageMetadataResource.GetMetadataAsync(packageID, includePrerelease, includeUnlisted, new NullLogger(), CancellationToken.None);

        }

    }

}