/// <summary>
/// Sorts the specified list of packages according to their dependencies, guaranteeing that no package
/// is listed before its dependencies. Use this to determine the order of batch updates and installs
/// to prevent conflicts from having different versions of the same packages.
/// </summary>
public void OrderByDependencies(IList <LocalPackage> packages)
{
// Map each list entry to its PackageInfo
PackageInfo[] localInfo = packages
.Select(p => p.Info ?? this.GetPackage(p.Name))
.NotNull()
.ToArray();
// Sort the mapped list
this.OrderByDependencies(localInfo);
// Now sort the original list to match the sorted mapped list
LocalPackage[] originalPackages = packages.ToArray();
int nonSortedCount = 0;
for (int i = 0; i < originalPackages.Length; i++)
{
LocalPackage localPackage = originalPackages[i];
int newIndex = localInfo.IndexOfFirst(p => p.Id == localPackage.Id && p.Version == localPackage.Version);
if (newIndex == -1)
{
newIndex = localInfo.IndexOfFirst(p => p.Id == localPackage.Id);
}
// Unresolved packages are always last in the sorted list
if (newIndex == -1)
{
newIndex = packages.Count - nonSortedCount - 1;
nonSortedCount++;
}
packages[newIndex] = localPackage;
}
}
/// <summary>
/// Determines whether all installed pacakges are forward compatible to <paramref name="target"/>.
/// </summary>
/// <param name="target"></param>
/// <returns></returns>
public PackageCompatibility GetForwardCompatibility(PackageInfo target)
{
LocalPackage current = this.localPackages.FirstOrDefault(p => p.Id == target.Id);
if (current == null)
{
return(PackageCompatibility.Definite);
}
Version currentVersion = current.Version;
Version targetVersion = target.Version;
// ToDo: Implement a more sophisticated algorithm
if (currentVersion.Major != targetVersion.Major)
{
return(PackageCompatibility.Unlikely);
}
else if (currentVersion.Minor != targetVersion.Minor)
{
return(PackageCompatibility.Likely);
}
else
{
return(PackageCompatibility.Definite);
}
}
public void UpdatePackage(LocalPackage package)
{
this.uninstallQueue = null;
PackageInfo newVersion = this.QueryPackageInfo(package.Id);
this.manager.UpdatePackage(newVersion.Id, new SemanticVersion(newVersion.Version), true, false);
this.uninstallQueue = new List <LocalPackage>();
}
public void UpdatePackage(LocalPackage package, Version specificVersion = null)
{
// Due to a bug in NuGet 2.8.2, specific-version downgrades are limited to the package itself,
// without updating its dependencies. Otherwise, some of them might be uninstalled without
// being reinstalled properly.
this.uninstallQueue = null;
bool isDowngrade = specificVersion != null && specificVersion < package.Version;
NuGet.IPackage newPackage = this.FindPackageInfo(new PackageName(package.Id, specificVersion), false);
this.manager.UpdatePackage(newPackage, !isDowngrade, false);
this.uninstallQueue = new List <LocalPackage>();
}
public void UpdatePackage(LocalPackage package)
{
NuGet.IPackage newPackage = this.FindPackageInfo(new PackageName(package.Id));
// Check license terms
if (!this.CheckDeepLicenseAgreements(newPackage))
{
return;
}
this.uninstallQueue = null;
this.manager.UpdatePackage(newPackage, true, false);
this.uninstallQueue = new List <LocalPackage>();
}
public bool CanUninstallPackage(LocalPackage package)
{
bool allowed = true;
this.manager.WhatIf = true;
try
{
this.manager.UninstallPackage(package.Id, new SemanticVersion(package.Version), false, true);
}
catch (Exception)
{
allowed = false;
}
this.manager.WhatIf = false;
return(allowed);
}
public void OrderByDependencies(IList <LocalPackage> packages)
{
// Map each list entry to its PackageInfo
PackageInfo[] localInfo = packages.Select(p => p.Info ?? this.QueryPackageInfo(p.PackageName)).ToArray();
// Sort the mapped list
this.OrderByDependencies(localInfo);
// Now sort the original list to match the sorted mapped list
LocalPackage[] originalPackages = packages.ToArray();
for (int i = 0; i < originalPackages.Length; i++)
{
LocalPackage localPackage = originalPackages[i];
int newIndex = localInfo.IndexOfFirst(p => p.Id == localPackage.Id && p.Version == localPackage.Version);
packages[newIndex] = localPackage;
}
}
/// <summary>
/// Installs the specified package if it wasn't installed yet and synchronizes
/// the registered Duality package version number with the one that is present
/// in the local cache.
/// </summary>
/// <param name="localPackage"></param>
public void VerifyPackage(LocalPackage localPackage)
{
Version oldPackageVersion = localPackage.Version;
// Determine the exact version that will be installed
PackageInfo packageInfo = this.GetPackage(localPackage.Name);
if (packageInfo == null)
{
throw new Exception(string.Format(
"Can't resolve version of package '{0}'. There seems to be no compatible version available.",
localPackage.Id));
}
// Prepare a listener to determine whether we actually installed something
EventHandler <PackageOperationEventArgs> installListener = null;
bool packageInstalled = false;
installListener = delegate(object sender, PackageOperationEventArgs args)
{
if (args.Package.Id == localPackage.Id)
{
packageInstalled = true;
}
};
// Install the package. Won't do anything if the package is already installed.
this.manager.PackageInstalled += installListener;
this.InstallPackage(localPackage.Name, true);
this.manager.PackageInstalled -= installListener;
// If we didn't install anything, that package was already in the local repo.
// Update the local setup to match its specific version.
if (!packageInstalled && oldPackageVersion == null)
{
// Add the explicit version to the PackageConfig file
this.setup.Packages.RemoveAll(p => p.Id == packageInfo.Id);
this.setup.Packages.Add(new LocalPackage(packageInfo));
}
// In case we've just retrieved an explicit version for the first time, save the config file.
if (oldPackageVersion == null)
{
this.setup.Save(this.env.ConfigFilePath);
}
}
public bool CanUpdatePackage(LocalPackage package)
{
bool allowed = true;
this.manager.WhatIf = true;
try
{
Version version = this.QueryPackageInfo(package.PackageName.VersionInvariant).Version;
this.manager.UpdatePackage(package.Id, new SemanticVersion(version), true, false);
}
catch (Exception)
{
allowed = false;
}
this.manager.WhatIf = false;
return(allowed);
}
/// <summary>
/// Determines compatibility between the current package installs and the specified target package.
/// Works for both updates and new installs.
/// </summary>
/// <param name="target"></param>
/// <returns></returns>
public PackageCompatibility GetCompatibilityLevel(PackageInfo target)
{
// If the target package is already installed in the matching version, assume compatibility
if (this.localPackages.Any(local => local.Id == target.Id && local.Version == target.Version))
{
return(PackageCompatibility.Definite);
}
// Determine all packages that might be updated or installed
PackageInfo[] touchedPackages = this.GetDeepDependencies(new[] { target }).ToArray();
// Generate a mapping to already installed packages
Dictionary <PackageInfo, LocalPackage> localMap = new Dictionary <PackageInfo, LocalPackage>();
foreach (PackageInfo package in touchedPackages)
{
LocalPackage local = this.localPackages.FirstOrDefault(p => p.Id == package.Id);
if (local == null)
{
continue;
}
localMap.Add(package, local);
}
// Determine the maximum version difference between target and installed
PackageCompatibility compatibility = PackageCompatibility.Definite;
foreach (var pair in localMap)
{
Version targetVersion = pair.Key.Version;
Version localVersion = pair.Value.Version;
if (localVersion.Major != targetVersion.Major)
{
compatibility = compatibility.Combine(PackageCompatibility.Unlikely);
}
else if (localVersion.Minor != targetVersion.Minor)
{
compatibility = compatibility.Combine(PackageCompatibility.Likely);
}
}
return(compatibility);
}
public void VerifyPackage(LocalPackage package)
{
Version oldPackageVersion = package.Version;
// Determine the exact version that will be downloaded
PackageInfo packageInfo = this.QueryPackageInfo(package.Id, package.Version);
if (packageInfo == null)
{
throw new ApplicationException(string.Format(
"Can't resolve version of package '{0}'. There seems to be no compatible version available.",
package.Id));
}
// Prepare a listener to determine whether we actually installed something
EventHandler <PackageOperationEventArgs> installListener = null;
bool packageInstalled = false;
installListener = delegate(object sender, PackageOperationEventArgs args)
{
if (args.Package.Id == package.Id)
{
packageInstalled = true;
}
};
// Install the package. Won't do anything if the package is already installed.
this.manager.PackageInstalled += installListener;
this.InstallPackage(packageInfo);
this.manager.PackageInstalled -= installListener;
// If we didn't install anything, that package was already present in the local cache, but not in the PackageConfig file
if (!packageInstalled && oldPackageVersion == null)
{
// Add the explicit version to the PackageConfig file
this.localPackages.RemoveAll(p => p.Id == packageInfo.Id);
this.localPackages.Add(new LocalPackage(packageInfo));
}
// In case we've just retrieved an explicit version for the first time, save the config file.
if (oldPackageVersion == null)
{
this.SaveConfig();
}
}
public bool CanUpdatePackage(LocalPackage package, Version specificVersion = null)
{
bool allowed = true;
this.manager.WhatIf = true;
try
{
bool isSpecific = specificVersion != null;
if (specificVersion == null)
{
specificVersion = this.QueryPackageInfo(package.PackageName.VersionInvariant).Version;
}
this.manager.UpdatePackage(package.Id, new SemanticVersion(specificVersion), !isSpecific, false);
}
catch (Exception)
{
allowed = false;
}
this.manager.WhatIf = false;
return(allowed);
}
public void VerifyPackage(LocalPackage package)
{
Version oldPackageVersion = package.Version;
// Determine the exact version that will be downloaded
PackageInfo packageInfo = this.QueryPackageInfo(package.Id, package.Version);
if (packageInfo == null)
{
throw new ApplicationException(string.Format(
"Can't resolve version of package '{0}'. There seems to be no compatible version available.",
package.Id));
}
// Install the package. Won't do anything if the package is already installed.
this.InstallPackage(packageInfo);
// In case we've just retrieved an explicit version for the first time, save the config file.
if (oldPackageVersion == null)
{
this.SaveConfig();
}
}
public LocalPackageItem(LocalPackage package, BaseItem parent) : base(package.Info, parent) {}
/// <summary>
/// Determines the number of deep dependencies for the specified package.
/// </summary>
/// <param name="package"></param>
/// <param name="deepCount"></param>
/// <param name="resolver"></param>
/// <returns></returns>
private int GetDeepDependencyCount(PackageInfo package, Dictionary <PackageInfo, int> deepCount, Dictionary <PackageName, PackageInfo> resolveCache)
{
int count;
if (!deepCount.TryGetValue(package, out count))
{
// Use the count of direct dependencies as starting value
count = package.Dependencies.Count();
// Prevent endless recursion on cyclic dependency graphs by registering early
deepCount[package] = count;
// Iterate over dependencies and count theirs as well
foreach (PackageName dependencyName in package.Dependencies)
{
// Try to resolve the dependency name to get a hold on the actual info
PackageInfo dependency;
if (!resolveCache.TryGetValue(dependencyName, out dependency))
{
// Try the exact name locally and online
dependency = this.QueryPackageInfo(dependencyName);
// If nothing turns up, see if we have a similar package locally and try that as well
if (dependency == null)
{
LocalPackage localDependency = this.localPackages.FirstOrDefault(p => p.Id == dependencyName.Id);
if (localDependency != null)
{
if (localDependency.Info != null)
{
dependency = localDependency.Info;
}
else
{
dependency = this.QueryPackageInfo(localDependency.PackageName);
}
}
}
// If we still have nothing, try a general search for the newest package with that Id
if (dependency == null)
{
dependency = this.QueryPackageInfo(dependencyName.VersionInvariant);
}
// Cache the results for later
resolveCache[dependencyName] = dependency;
}
if (dependency == null)
{
continue;
}
// Add secondary dependencies
count += GetDeepDependencyCount(dependency, deepCount, resolveCache);
}
// Update the registered value
deepCount[package] = count;
}
return(count);
}
public void UninstallPackage(LocalPackage package)
{
this.manager.UninstallPackage(package.Id, new SemanticVersion(package.Version), false, true);
}
/// <summary>
/// Determines compatibility between the current package installs and the specified target package.
/// Works for both updates and new installs.
/// </summary>
/// <param name="target"></param>
/// <returns></returns>
public PackageCompatibility GetCompatibilityLevel(PackageInfo target)
{
// If the target package is already installed in the matching version, assume compatibility
if (this.setup.GetPackage(target.Id, target.Version) != null)
{
return(PackageCompatibility.Definite);
}
// Determine all packages that might be updated or installed
this.dependencyWalker.Clear();
this.dependencyWalker.WalkGraph(target);
List <PackageInfo> touchedPackages = this.dependencyWalker.VisitedPackages.ToList();
// Verify properly specified dependencies for Duality packages
if (target.IsDualityPackage)
{
// If none of the targets deep dependencies is anyhow related to Duality, assume they're incomplete and potentially incompatible
bool anyDualityDependency = false;
foreach (PackageInfo package in touchedPackages)
{
if (DualityPackageNames.Any(name => string.Equals(name, package.Id)))
{
anyDualityDependency = true;
break;
}
}
if (!anyDualityDependency)
{
return(PackageCompatibility.None);
}
}
// Generate a mapping to already installed packages
Dictionary <PackageInfo, LocalPackage> localMap = new Dictionary <PackageInfo, LocalPackage>();
foreach (PackageInfo package in touchedPackages)
{
LocalPackage local = this.setup.GetPackage(package.Id);
if (local == null)
{
continue;
}
localMap.Add(package, local);
}
// Determine the maximum version difference between target and installed
PackageCompatibility compatibility = PackageCompatibility.Definite;
foreach (var pair in localMap)
{
Version targetVersion = pair.Key.Version;
Version localVersion = pair.Value.Version;
if (localVersion.Major != targetVersion.Major)
{
compatibility = compatibility.Combine(PackageCompatibility.Unlikely);
}
else if (localVersion.Minor != targetVersion.Minor)
{
compatibility = compatibility.Combine(PackageCompatibility.Likely);
}
}
return(compatibility);
}
public void UninstallPackage(LocalPackage package)
{
this.uninstallQueue.Add(package);
this.manager.UninstallPackage(package.Id, new SemanticVersion(package.Version), false, true);
this.uninstallQueue.Clear();
}
