public static void DownloadPackage(string packageId, IVersion version, Uri feedUri, string targetFilePath)
{
if (!Directory.Exists(feedUri.LocalPath))
{
throw new Exception($"Path does not exist: '{feedUri}'");
}
// Lookup files which start with the name "<Id>." and attempt to match it with all possible version string combinations (e.g. 1.2.0, 1.2.0.0)
// before opening the package. To avoid creating file name strings, we attempt to specifically match everything after the last path separator
// which would be the file name and extension.
var package = (from path in GetPackageLookupPaths(packageId, version, feedUri)
let p = new LocalNuGetPackage(path)
where p.Metadata.Id.Equals(packageId, StringComparison.OrdinalIgnoreCase) &&
VersionFactory.CreateVersion(p.Metadata.Version.ToString(), PackageMetadataFactory.GetMetadataFromPackageID(packageId).VersionFormat).Equals(version)
select p).FirstOrDefault();
if (package == null)
{
throw new Exception($"Could not find package {packageId} {version} in feed: '{feedUri}'");
}
Log.VerboseFormat("Found package {0} version {1}", package.Metadata.Id, package.Metadata.Version);
Log.Verbose("Downloading to: " + targetFilePath);
using (var targetFile = File.Open(targetFilePath, FileMode.Create, FileAccess.ReadWrite, FileShare.None))
{
package.GetStream(stream =>
{
stream.CopyTo(targetFile);
});
}
}