public static async Task Install(PackageSources sources, string packageId)
{
var storage = new ServiceClient(sources);
// 1. Load package3.config
JObject packageConfig;
try
{
string packageConfigJson = File.ReadAllText("packages.config.json");
packageConfig = PackageConfig.Load(packageConfigJson);
}
catch (FileNotFoundException)
{
packageConfig = JObject.Parse(@"{ ""packages"": [], ""@context"": { ""@vocab"": ""http://schema.nuget.org/packagesConfig#"",
""pc"": ""http://schema.nuget.org/packagesConfig#"",
""package"": ""@id"",
""packages"": {""@id"": ""pc:package"", ""@container"": ""@set"" },
""metadataSources"": {""@id"": ""pc:metadataSource"", ""@container"": ""@set"", ""@type"": ""@id"" },
""downloadLocations"": {""@id"": ""pc:downloadLocation"", ""@container"": ""@set"", ""@type"": ""@id"" } } }
");
File.WriteAllText("packages.config.json", packageConfig.ToString());
}
// 3. Resolve dependencies.
List<string> installed = new List<string> { packageId };
foreach (JObject package in packageConfig["packages"])
{
if (package["explicitlyInstalled"].ToObject<bool>())
{
installed.Add(package["id"].ToObject<string>());
}
}
IGallery gallery = storage.GetResolverClient().Gallery;
IList<Package> solution = await Runner.ResolveDependencies(gallery, installed);
// 4. Update packages.config.json.
HttpClient hc = new HttpClient();
foreach (Package item in solution)
{
string nupkgPath = (string)item.PackageJson["nupkgUrl"];
string id = item.Id;
string version = item.Version.ToString();
string url = item.PackageJson["url"].ToObject<string>();
bool alreadyPresent = false;
foreach (JObject package in packageConfig["packages"])
{
if (string.Compare(package["id"].ToObject<string>(), id, ignoreCase: true) == 0)
{
alreadyPresent = true;
package["package"] = url;
package["version"] = version;
package["explicitlyInstalled"] = installed.Where(i => string.Compare(id, i, ignoreCase: true) == 0).Any();
package["packageRestoreHints"]["downloadLocations"] = new JArray { nupkgPath };
}
}
if (!alreadyPresent)
{
((JArray)packageConfig["packages"]).Add(new JObject {
{ "package", url},
{ "id", id},
{"version", version},
{"explicitlyInstalled", installed.Where(i => string.Compare(id, i, ignoreCase: true) == 0).Any() },
{"packageRestoreHints", new JObject {
{"metadataSources", new JArray {"https://api.nuget.org/ver3/"} },
{"downloadLocations", new JArray { nupkgPath } },
}}});
}
}
File.WriteAllText("packages.config.json", packageConfig.ToString());
// 5. Download the dependencies.
await Restore(sources);
}