private Task <LockFile> ReadLockFile(string projectLockFilePath)
{
if (!File.Exists(projectLockFilePath))
{
return(Task.FromResult(default(LockFile)));
}
var lockFileFormat = new LockFileFormat();
return(Task.FromResult(lockFileFormat.Read(projectLockFilePath)));
}
private void PurgeOrphanPackages()
{
_reports.Verbose.WriteLine("Removing orphaned packages...");
// Find the packages still used by the command scripts
var applicationPackagesStillUsed = _commandsRepo.Commands
.Select(cmd => _commandsRepo.FindCommandOwner(cmd))
.Distinct();
// Get all the installed packages
var packagesRepo = new PackageRepository(
_commandsRepo.PackagesRoot,
caseSensitivePackagesName: false);
// Key = package<id, version>, Value = bool (true if used, false otherwise)
var usedPackages = packagesRepo
.GetAllPackages()
.SelectMany(pack => pack.Value)
.ToDictionary(
pack => pack,
_ => false);
var lockFileFormat = new LockFileFormat();
// Mark all the packages still in used by using the dependencies in the lock file
foreach (var applicationPackage in applicationPackagesStillUsed)
{
var appLockFileFullPath = Path.Combine(
_commandsRepo.PackagesRoot.Root,
_commandsRepo.PathResolver.GetPackageDirectory(applicationPackage.Id, applicationPackage.Version),
InstallBuilder.CommandsFolderName,
LockFileFormat.LockFileName);
if (!File.Exists(appLockFileFullPath))
{
_reports.Verbose.WriteLine("Lock file {0} not found. This package will be removed if it is not used by another application", appLockFileFullPath);
// The lock file is missing, probably the app is not installed correctly
// unless someone else is using it, we'll remove it
continue;
}
var lockFile = lockFileFormat.Read(appLockFileFullPath);
foreach (var dependency in lockFile.Libraries)
{
var dependencyPackage = new NuGet.PackageInfo(
_commandsRepo.PackagesRoot,
dependency.Name,
dependency.Version,
null,
null);
if (usedPackages.ContainsKey(dependencyPackage))
{
// Mark the dependency as used
usedPackages[dependencyPackage] = true;
}
}
}
// Now it's time to remove those unused packages
var unusedPackages = usedPackages
.Where(pack => !pack.Value)
.Select(pack => pack.Key);
foreach (var package in unusedPackages)
{
packagesRepo.RemovePackage(package);
_reports.Verbose.WriteLine("Removed orphaned package: {0} {1}", package.Id, package.Version);
}
}