public async Task <IEnumerable <IServerPackage> > SearchAsync(
string searchTerm,
IEnumerable <string> targetFrameworks,
bool allowPrereleaseVersions,
ClientCompatibility compatibility,
CancellationToken token)
{
var cache = await GetPackagesAsync(compatibility, token);
var packages = cache
.Find(searchTerm)
.FilterByPrerelease(allowPrereleaseVersions);
if (EnableDelisting)
{
packages = packages.Where(p => p.Listed);
}
if (EnableFrameworkFiltering && targetFrameworks.Any())
{
// Get the list of framework names
var frameworkNames = targetFrameworks
.Select(frameworkName => VersionUtility.ParseFrameworkName(frameworkName));
packages = packages
.Where(package => frameworkNames
.Any(frameworkName => VersionUtility
.IsCompatible(frameworkName, package.GetSupportedFrameworks())));
}
return(packages);
}
private static async Task <IEnumerable <IServerPackage> > GetUpdateCandidatesAsync(
IServerPackageRepository repository,
IEnumerable <IPackageName> packages,
bool includePrerelease,
ClientCompatibility compatibility,
CancellationToken token)
{
var query = await repository.GetPackagesAsync(compatibility, token);
var ids = new HashSet <string>(
packages.Select(p => p.Id),
StringComparer.OrdinalIgnoreCase);
query = query.Where(p => ids.Contains(p.Id));
if (!includePrerelease)
{
query = query.Where(p => p.IsReleaseVersion());
}
// for updates, we never consider unlisted packages
query = query.Where(p => p.Listed);
return(query);
}
/// <summary>
/// Package cache containing packages metadata.
/// This data is generated if it does not exist already.
/// </summary>
public async Task <IEnumerable <IServerPackage> > GetPackagesAsync(
ClientCompatibility compatibility,
CancellationToken token)
{
await RebuildIfNeededAsync(shouldLock : true, token : token);
// First time we come here, attach the file system watcher.
if (_fileSystemWatcher == null &&
EnableFileSystemMonitoring &&
_runBackgroundTasks)
{
RegisterFileSystemWatcher();
}
// First time we come here, setup background jobs.
if (_persistenceTimer == null &&
_runBackgroundTasks)
{
SetupBackgroundJobs();
}
var cache = _serverPackageCache.GetAll();
if (!compatibility.AllowSemVer2)
{
cache = cache.Where(p => !p.IsSemVer2);
}
return(cache);
}
public async Task <IEnumerable <IServerPackage> > SearchAsync(
string searchTerm,
IEnumerable <string> targetFrameworks,
bool allowPrereleaseVersions,
ClientCompatibility compatibility,
CancellationToken token)
{
return(await SearchAsync(searchTerm, targetFrameworks, allowPrereleaseVersions, false, compatibility, token));
}
public static async Task <IEnumerable <IServerPackage> > FindPackagesByIdAsync(
this IServerPackageRepository repository,
string id,
ClientCompatibility compatibility,
CancellationToken token)
{
var packages = await repository.GetPackagesAsync(compatibility, token);
return(packages.Where(p => StringComparer.OrdinalIgnoreCase.Equals(p.Id, id)));
}
public static async Task <IServerPackage> FindPackageAsync(
this IServerPackageRepository repository,
string id,
ClientCompatibility compatibility,
CancellationToken token)
{
var packages = await repository.FindPackagesByIdAsync(id, compatibility, token);
return(packages
.OrderByDescending(p => p.Version)
.FirstOrDefault());
}
public static async Task <IEnumerable <IServerPackage> > SearchAsync(
this IServerPackageRepository repository,
string searchTerm,
bool allowPrereleaseVersions,
ClientCompatibility compatibility,
CancellationToken token)
{
return(await repository.SearchAsync(
searchTerm,
Enumerable.Empty <string>(),
allowPrereleaseVersions,
compatibility,
token));
}
public static async Task <IEnumerable <IServerPackage> > GetUpdatesAsync(
this IServerPackageRepository repository,
IEnumerable <IPackageName> packages,
bool includePrerelease,
bool includeAllVersions,
IEnumerable <FrameworkName> targetFramework,
IEnumerable <IVersionSpec> versionConstraints,
ClientCompatibility compatibility,
CancellationToken token)
{
List <IPackageName> packageList = packages.ToList();
if (!packageList.Any())
{
return(Enumerable.Empty <IServerPackage>());
}
IList <IVersionSpec> versionConstraintList;
if (versionConstraints == null)
{
versionConstraintList = new IVersionSpec[packageList.Count];
}
else
{
versionConstraintList = versionConstraints.ToList();
}
if (packageList.Count != versionConstraintList.Count)
{
throw new ArgumentException(Strings.GetUpdatesParameterMismatch);
}
// These are the packages that we need to look at for potential updates.
var candidates = await GetUpdateCandidatesAsync(
repository,
packageList,
includePrerelease,
compatibility,
token);
ILookup <string, IServerPackage> sourcePackages = candidates
.ToList()
.ToLookup(package => package.Id, StringComparer.OrdinalIgnoreCase);
var results = new List <IServerPackage>();
for (int i = 0; i < packageList.Count; i++)
{
var package = packageList[i];
var constraint = versionConstraintList[i];
var updates = from candidate in sourcePackages[package.Id]
where (candidate.Version > package.Version) &&
SupportsTargetFrameworks(targetFramework, candidate) &&
(constraint == null || constraint.Satisfies(candidate.Version))
select candidate;
results.AddRange(updates);
}
if (!includeAllVersions)
{
return(CollapseById(results));
}
return(results);
}
