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);
}
}
return(package);
}
private List <LocalPackageInfo> GetPackages(string id)
{
var packages = new List <LocalPackageInfo>();
var packageIdRoot = PathResolver.GetVersionListPath(id);
if (!Directory.Exists(packageIdRoot))
{
return(packages);
}
foreach (var fullVersionDir in Directory.EnumerateDirectories(packageIdRoot))
{
LocalPackageInfo package;
if (!_packageCache.TryGetValue(fullVersionDir, out package))
{
var versionPart = fullVersionDir.Substring(packageIdRoot.Length).TrimStart(Path.DirectorySeparatorChar);
// Get the version part and parse it
NuGetVersion version;
if (!NuGetVersion.TryParse(versionPart, out version))
{
continue;
}
var nupkgMetadataPath = PathResolver.GetNupkgMetadataPath(id, version);
var hashPath = PathResolver.GetHashPath(id, version);
var zipPath = PathResolver.GetPackageFilePath(id, version);
var installPath = PathResolver.GetInstallPath(id, 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(id, version, fullVersionDir, nupkgMetadataPath, zipPath);
// 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(fullVersionDir, package);
}
// 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, installPath, hashPath, nupkgMetadataPath);
package = CreateLocalPackageInfo(id, version, fullVersionDir, nupkgMetadataPath, zipPath);
// 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(fullVersionDir, package);
}
}
// Add the package if it is valid
if (package != null)
{
packages.Add(package);
}
}
return(packages);
}
