public async Task LocalPackageFileCache_UpdateLastAccessTimestampVerifyOnce()
{
using (var pathContext = new SimpleTestPathContext())
{
var cache = new LocalPackageFileCache();
var pathResolver = new VersionFolderPathResolver(pathContext.PackageSource);
var identity = new PackageIdentity("X", NuGetVersion.Parse("1.0.0"));
var path = pathResolver.GetInstallPath(identity.Id, identity.Version);
await SimpleTestPackageUtility.CreateFolderFeedV3Async(
pathContext.PackageSource,
identity);
var metadataPath = pathResolver.GetNupkgMetadataPath(identity.Id, identity.Version);
cache.UpdateLastAccessTime(metadataPath);
var lastAccess = File.GetLastAccessTimeUtc(metadataPath);
cache.UpdateLastAccessTime(metadataPath);
// Verify the last access timestamp was cached
Assert.Equal(lastAccess, File.GetLastAccessTimeUtc(metadataPath));
}
}
private LocalPackageInfo GetPackage(string packageId, NuGetVersion version, string path)
{
if (!_packageCache.TryGetValue(path, out var package))
{
var nupkgMetadataPath = PathResolver.GetNupkgMetadataPath(packageId, version);
var hashPath = PathResolver.GetHashPath(packageId, version);
var zipPath = PathResolver.GetPackageFilePath(packageId, version);
// The nupkg metadata file is written last. If this file does not exist then the package is
// incomplete and should not be used.
if (_packageFileCache.Sha512Exists(nupkgMetadataPath))
{
package = CreateLocalPackageInfo(packageId, version, path, nupkgMetadataPath, zipPath);
}
// if hash file exists and it's not a fallback folder then we generate nupkg metadata file
else if (!_isFallbackFolder && _packageFileCache.Sha512Exists(hashPath))
{
LocalFolderUtility.GenerateNupkgMetadataFile(zipPath, path, hashPath, nupkgMetadataPath);
package = CreateLocalPackageInfo(packageId, version, path, nupkgMetadataPath, zipPath);
}
if (package != null)
{
// Cache the package, if it is valid it will not change
// for the life of this restore.
// Locking is done at a higher level around the id
_packageCache.TryAdd(path, package);
if (!_isFallbackFolder && _updateLastAccessTime)
{
_packageFileCache.UpdateLastAccessTime(nupkgMetadataPath);
}
}
}
return(package);
}