private static bool TryLoadAssets(PackageSession session, ILogger log, Package package, PackageLoadParameters loadParameters)
{
// Already loaded
if (package.State >= PackageState.AssetsReady)
return true;
// Dependencies could not properly be loaded
if (package.State < PackageState.DependenciesReady)
return false;
// A package upgrade has previously been tried and denied, so let's keep the package in this state
if (package.State == PackageState.UpgradeFailed)
return false;
try
{
// First, check that dependencies have their assets loaded
bool dependencyError = false;
foreach (var dependency in package.FindDependencies(false, false))
{
if (!TryLoadAssets(session, log, dependency, loadParameters))
dependencyError = true;
}
if (dependencyError)
return false;
var pendingPackageUpgrades = new List<PendingPackageUpgrade>();
// Note: Default state is upgrade failed (for early exit on error/exceptions)
// We will update to success as soon as loading is finished.
package.State = PackageState.UpgradeFailed;
// Process store dependencies for upgraders
foreach (var packageDependency in package.Meta.Dependencies)
{
var dependencyPackage = session.Packages.Find(packageDependency);
if (dependencyPackage == null)
{
continue;
}
// Check for upgraders
var packageUpgrader = session.CheckPackageUpgrade(log, package, packageDependency, dependencyPackage);
if (packageUpgrader != null)
{
pendingPackageUpgrades.Add(new PendingPackageUpgrade(packageUpgrader, packageDependency, dependencyPackage));
}
}
// Prepare asset loading
var newLoadParameters = loadParameters.Clone();
newLoadParameters.AssemblyContainer = session.assemblyContainer;
// Default package version override
newLoadParameters.ExtraCompileProperties = new Dictionary<string, string>();
var defaultPackageOverride = NugetStore.GetPackageVersionVariable(PackageStore.Instance.DefaultPackageName) + "Override";
var defaultPackageVersion = PackageStore.Instance.DefaultPackageVersion.Version;
newLoadParameters.ExtraCompileProperties.Add(defaultPackageOverride, new Version(defaultPackageVersion.Major, defaultPackageVersion.Minor).ToString());
if (loadParameters.ExtraCompileProperties != null)
{
foreach (var property in loadParameters.ExtraCompileProperties)
{
newLoadParameters.ExtraCompileProperties[property.Key] = property.Value;
}
}
if (pendingPackageUpgrades.Count > 0)
{
var upgradeAllowed = true;
// Need upgrades, let's ask user confirmation
if (loadParameters.PackageUpgradeRequested != null)
{
upgradeAllowed = loadParameters.PackageUpgradeRequested(package, pendingPackageUpgrades);
}
if (!upgradeAllowed)
{
log.Error("Necessary package migration for [{0}] has not been allowed", package.Meta.Name);
return false;
}
// Perform pre assembly load upgrade
foreach (var pendingPackageUpgrade in pendingPackageUpgrades)
{
var packageUpgrader = pendingPackageUpgrade.PackageUpgrader;
var dependencyPackage = pendingPackageUpgrade.DependencyPackage;
if (!packageUpgrader.UpgradeBeforeAssembliesLoaded(session, log, package, pendingPackageUpgrade.Dependency, dependencyPackage))
{
log.Error("Error while upgrading package [{0}] for [{1}] from version [{2}] to [{3}]", package.Meta.Name, dependencyPackage.Meta.Name, pendingPackageUpgrade.Dependency.Version, dependencyPackage.Meta.Version);
return false;
}
}
}
// Load assemblies. Set the package filename to the path on disk, in case of renaming.
// TODO: Could referenced projects be associated to other packages than this one?
newLoadParameters.ExtraCompileProperties.Add("SiliconStudioCurrentPackagePath", package.FullPath);
package.LoadAssemblies(log, newLoadParameters);
// Load list of assets
newLoadParameters.AssetFiles = Package.ListAssetFiles(log, package, loadParameters.CancelToken);
if (pendingPackageUpgrades.Count > 0)
{
// Perform upgrades
foreach (var pendingPackageUpgrade in pendingPackageUpgrades)
{
var packageUpgrader = pendingPackageUpgrade.PackageUpgrader;
var dependencyPackage = pendingPackageUpgrade.DependencyPackage;
if (!packageUpgrader.Upgrade(session, log, package, pendingPackageUpgrade.Dependency, dependencyPackage, newLoadParameters.AssetFiles))
{
log.Error("Error while upgrading package [{0}] for [{1}] from version [{2}] to [{3}]", package.Meta.Name, dependencyPackage.Meta.Name, pendingPackageUpgrade.Dependency.Version, dependencyPackage.Meta.Version);
return false;
}
// Update dependency to reflect new requirement
pendingPackageUpgrade.Dependency.Version = pendingPackageUpgrade.PackageUpgrader.Attribute.PackageUpdatedVersionRange;
}
// Mark package as dirty
package.IsDirty = true;
}
// Load assets
package.LoadAssets(log, newLoadParameters);
// Validate assets from package
package.ValidateAssets(newLoadParameters.GenerateNewAssetIds);
if (pendingPackageUpgrades.Count > 0)
{
// Perform post asset load upgrade
foreach (var pendingPackageUpgrade in pendingPackageUpgrades)
{
var packageUpgrader = pendingPackageUpgrade.PackageUpgrader;
var dependencyPackage = pendingPackageUpgrade.DependencyPackage;
if (!packageUpgrader.UpgradeAfterAssetsLoaded(session, log, package, pendingPackageUpgrade.Dependency, dependencyPackage, pendingPackageUpgrade.DependencyVersionBeforeUpgrade))
{
log.Error("Error while upgrading package [{0}] for [{1}] from version [{2}] to [{3}]", package.Meta.Name, dependencyPackage.Meta.Name, pendingPackageUpgrade.Dependency.Version, dependencyPackage.Meta.Version);
return false;
}
}
// Mark package as dirty
package.IsDirty = true;
}
// Mark package as ready
package.State = PackageState.AssetsReady;
// Freeze the package after loading the assets
session.FreezePackage(package);
return true;
}
catch (Exception ex)
{
log.Error("Error while loading package [{0}]", ex, package);
return false;
}
}
private static Package PreLoadPackage(PackageSession session, ILogger log, string filePath, bool isSystemPackage, PackageCollection loadedPackages, PackageLoadParameters loadParameters)
{
if (session == null)
{
throw new ArgumentNullException("session");
}
if (log == null)
{
throw new ArgumentNullException("log");
}
if (filePath == null)
{
throw new ArgumentNullException("filePath");
}
if (loadedPackages == null)
{
throw new ArgumentNullException("loadedPackages");
}
if (loadParameters == null)
{
throw new ArgumentNullException("loadParameters");
}
try
{
var packageId = Package.GetPackageIdFromFile(filePath);
// Check that the package was not already loaded, otherwise return the same instance
if (session.Packages.ContainsById(packageId))
{
return(session.Packages.Find(packageId));
}
// Package is already loaded, use the instance
if (loadedPackages.ContainsById(packageId))
{
return(loadedPackages.Find(packageId));
}
// Load the package without loading assets
var newLoadParameters = loadParameters.Clone();
newLoadParameters.AssemblyContainer = session.assemblyContainer;
// Load the package
var package = Package.Load(log, filePath, newLoadParameters);
package.IsSystem = isSystemPackage;
// Add the package has loaded before loading dependencies
loadedPackages.Add(package);
// Load package dependencies
PreLoadPackageDependencies(session, log, package, loadedPackages, loadParameters);
// Add the package to the session but don't freeze it yet
session.Packages.Add(package);
// Validate assets from package
package.ValidateAssets(loadParameters.GenerateNewAssetIds);
// Freeze the package after loading the assets
session.FreezePackage(package);
return(package);
}
catch (Exception ex)
{
log.Error("Error while pre-loading package [{0}]", ex, filePath);
}
return(null);
}
private static bool TryLoadAssets(PackageSession session, ILogger log, Package package, PackageLoadParameters loadParameters)
{
// Already loaded
if (package.State >= PackageState.AssetsReady)
{
return(true);
}
// Dependencies could not properly be loaded
if (package.State < PackageState.DependenciesReady)
{
return(false);
}
// A package upgrade has previously been tried and denied, so let's keep the package in this state
if (package.State == PackageState.UpgradeFailed)
{
return(false);
}
try
{
// First, check that dependencies have their assets loaded
bool dependencyError = false;
foreach (var dependency in package.FindDependencies(false, false))
{
if (!TryLoadAssets(session, log, dependency, loadParameters))
{
dependencyError = true;
}
}
if (dependencyError)
{
return(false);
}
var pendingPackageUpgrades = new List <PendingPackageUpgrade>();
// Note: Default state is upgrade failed (for early exit on error/exceptions)
// We will update to success as soon as loading is finished.
package.State = PackageState.UpgradeFailed;
// Process store dependencies for upgraders
foreach (var packageDependency in package.Meta.Dependencies)
{
var dependencyPackage = session.Packages.Find(packageDependency);
if (dependencyPackage == null)
{
continue;
}
// Check for upgraders
var packageUpgrader = session.CheckPackageUpgrade(log, package, packageDependency, dependencyPackage);
if (packageUpgrader != null)
{
pendingPackageUpgrades.Add(new PendingPackageUpgrade(packageUpgrader, packageDependency, dependencyPackage));
}
}
// Load list of assets
var assetFiles = Package.ListAssetFiles(log, package, loadParameters.CancelToken);
if (pendingPackageUpgrades.Count > 0)
{
var upgradeAllowed = true;
// Need upgrades, let's ask user confirmation
if (loadParameters.PackageUpgradeRequested != null)
{
upgradeAllowed = loadParameters.PackageUpgradeRequested(package, pendingPackageUpgrades);
}
if (!upgradeAllowed)
{
log.Error("Necessary package migration for [{0}] has not been allowed", package.Meta.Name);
return(false);
}
// Perform upgrades
foreach (var pendingPackageUpgrade in pendingPackageUpgrades)
{
var packageUpgrader = pendingPackageUpgrade.PackageUpgrader;
var dependencyPackage = pendingPackageUpgrade.DependencyPackage;
if (!packageUpgrader.Upgrade(session, log, package, pendingPackageUpgrade.Dependency, dependencyPackage, assetFiles))
{
log.Error("Error while upgrading package [{0}] for [{1}] from version [{2}] to [{3}]", package.Meta.Name, dependencyPackage.Meta.Name, pendingPackageUpgrade.Dependency.Version, dependencyPackage.Meta.Version);
return(false);
}
// Update dependency to reflect new requirement
pendingPackageUpgrade.Dependency.Version = pendingPackageUpgrade.PackageUpgrader.Attribute.PackageUpdatedVersionRange;
}
// Mark package as dirty
package.IsDirty = true;
}
// Process the package for assets
var newLoadParameters = loadParameters.Clone();
newLoadParameters.AssetFiles = assetFiles;
newLoadParameters.AssemblyContainer = session.assemblyContainer;
// Default package version override
newLoadParameters.ExtraCompileProperties = new Dictionary <string, string>();
var defaultPackageOverride = NugetStore.GetPackageVersionVariable(PackageStore.Instance.DefaultPackageName) + "Override";
var defaultPackageVersion = PackageStore.Instance.DefaultPackageVersion.Version;
newLoadParameters.ExtraCompileProperties.Add(defaultPackageOverride, new Version(defaultPackageVersion.Major, defaultPackageVersion.Minor).ToString());
if (loadParameters.ExtraCompileProperties != null)
{
foreach (var property in loadParameters.ExtraCompileProperties)
{
newLoadParameters.ExtraCompileProperties[property.Key] = property.Value;
}
}
// Load assemblies and assets
package.LoadAssembliesAndAssets(log, newLoadParameters);
// Validate assets from package
package.ValidateAssets(newLoadParameters.GenerateNewAssetIds);
// Mark package as ready
package.State = PackageState.AssetsReady;
// Freeze the package after loading the assets
session.FreezePackage(package);
return(true);
}
catch (Exception ex)
{
log.Error("Error while loading package [{0}]", ex, package);
return(false);
}
}
private static Package PreLoadPackage(PackageSession session, ILogger log, string filePath, bool isSystemPackage, PackageCollection loadedPackages, PackageLoadParameters loadParameters)
{
if (session == null) throw new ArgumentNullException("session");
if (log == null) throw new ArgumentNullException("log");
if (filePath == null) throw new ArgumentNullException("filePath");
if (loadedPackages == null) throw new ArgumentNullException("loadedPackages");
if (loadParameters == null) throw new ArgumentNullException("loadParameters");
try
{
var packageId = Package.GetPackageIdFromFile(filePath);
// Check that the package was not already loaded, otherwise return the same instance
if (session.Packages.ContainsById(packageId))
{
return session.Packages.Find(packageId);
}
// Package is already loaded, use the instance
if (loadedPackages.ContainsById(packageId))
{
return loadedPackages.Find(packageId);
}
// Load the package without loading assets
var newLoadParameters = loadParameters.Clone();
newLoadParameters.AssemblyContainer = session.assemblyContainer;
// Load the package
var package = Package.Load(log, filePath, newLoadParameters);
package.IsSystem = isSystemPackage;
// Add the package has loaded before loading dependencies
loadedPackages.Add(package);
// Package has been loaded, register it in constraints so that we force each subsequent loads to use this one (or fails if version doesn't match)
session.constraintProvider.AddConstraint(package.Meta.Name, new VersionSpec(package.Meta.Version.ToSemanticVersion()));
// Load package dependencies
PreLoadPackageDependencies(session, log, package, loadedPackages, loadParameters);
// Add the package to the session but don't freeze it yet
session.Packages.Add(package);
// Validate assets from package
package.ValidateAssets(loadParameters.GenerateNewAssetIds);
// Freeze the package after loading the assets
session.FreezePackage(package);
return package;
}
catch (Exception ex)
{
log.Error("Error while pre-loading package [{0}]", ex, filePath);
}
return null;
}