/// <summary>
/// Gets the package .nupkg file path if it exists; otherwise, <c>null</c>.
/// </summary>
/// <param name="packageIdentity">A package identity.</param>
/// <returns>The package .nupkg file path if it exists; otherwise, <c>null</c>.</returns>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="packageIdentity" />
/// is <c>null</c>.</exception>
public string GetInstalledPackageFilePath(PackageIdentity packageIdentity)
{
if (packageIdentity == null)
{
throw new ArgumentNullException(nameof(packageIdentity));
}
// Check the expected location before searching all directories
var packageDirectory = PackagePathResolver.GetInstallPath(packageIdentity);
var packageName = PackagePathResolver.GetPackageFileName(packageIdentity);
var installPath = Path.GetFullPath(Path.Combine(packageDirectory, packageName));
// Keep the previous optimization of just going by the existance of the file if we find it.
if (File.Exists(installPath))
{
return(installPath);
}
// If the file was not found check for non-normalized paths and verify the id/version
LocalPackageInfo package = null;
if (PackagePathResolver.UseSideBySidePaths)
{
// Search for a folder with the id and version
package = LocalFolderUtility.GetPackagesConfigFolderPackage(
Root,
packageIdentity,
NullLogger.Instance);
}
else
{
// Search for just the id
package = LocalFolderUtility.GetPackageV2(
Root,
packageIdentity,
NullLogger.Instance,
CancellationToken.None);
}
if (package != null && packageIdentity.Equals(package.Identity))
{
return(package.Path);
}
// Default to empty
return(string.Empty);
}