public string GetPathWithAcceptableDependencyVersionsInstalled()
{
var lastSnapshotPath = _storage.GetLatestInstalledSnapshot();
if (lastSnapshotPath == null)
{
_logger.Log(isUserOnlyLog: false, Level.Information, string.Format(PowerShellWorkerStrings.NoInstalledDependencySnapshot, lastSnapshotPath));
return(null);
}
_logger.Log(isUserOnlyLog: false, Level.Information, string.Format(PowerShellWorkerStrings.LastInstalledDependencySnapshotFound, lastSnapshotPath));
if (_storage.IsEquivalentDependencyManifest(lastSnapshotPath))
{
_logger.Log(isUserOnlyLog: false, Level.Information, string.Format(PowerShellWorkerStrings.EquivalentDependencySnapshotManifest, lastSnapshotPath));
return(lastSnapshotPath);
}
var dependencies = _storage.GetDependencies();
if (dependencies.All(entry => IsAcceptableVersionInstalled(lastSnapshotPath, entry)))
{
_logger.Log(isUserOnlyLog: false, Level.Information, string.Format(PowerShellWorkerStrings.DependencySnapshotContainsAcceptableModuleVersions, lastSnapshotPath));
return(lastSnapshotPath);
}
_logger.Log(isUserOnlyLog: false, Level.Information, string.Format(PowerShellWorkerStrings.DependencySnapshotDoesNotContainAcceptableModuleVersions, lastSnapshotPath));
return(null);
}
private void PromoteToInstalledOrRemove(
string installingPath,
string installedPath,
DependencySnapshotInstallationMode installationMode,
ILogger logger)
{
var latestSnapshot = _storage.GetLatestInstalledSnapshot();
if (latestSnapshot != null && _snapshotComparer.AreEquivalent(installingPath, latestSnapshot, logger))
{
logger.Log(
isUserOnlyLog: false,
LogLevel.Trace,
string.Format(PowerShellWorkerStrings.RemovingEquivalentDependencySnapshot, installingPath, latestSnapshot));
// The new snapshot is not better than the latest installed snapshot,
// so remove the new snapshot and update the timestamp of the latest snapshot
// in order to avoid unnecessary worker restarts.
_storage.RemoveSnapshot(installingPath);
_storage.SetSnapshotCreationTimeToUtcNow(latestSnapshot);
}
else
{
PromoteToInstalled(installingPath, installedPath, installationMode, logger);
}
}
internal void CheckForNewerDependencySnapshot(string currentlyUsedSnapshot, ILogger logger)
{
logger.Log(
isUserOnlyLog: false,
LogLevel.Trace,
string.Format(PowerShellWorkerStrings.LookingForNewerDependencySnapshot, currentlyUsedSnapshot));
var latestInstalledSnapshot = _storage.GetLatestInstalledSnapshot();
if (latestInstalledSnapshot == null || string.CompareOrdinal(latestInstalledSnapshot, currentlyUsedSnapshot) <= 0)
{
logger.Log(
isUserOnlyLog: false,
LogLevel.Trace,
string.Format(PowerShellWorkerStrings.NoNewerDependencySnapshotDetected));
}
else
{
logger.Log(
isUserOnlyLog: false,
LogLevel.Trace,
string.Format(PowerShellWorkerStrings.NewerDependencySnapshotDetected, latestInstalledSnapshot));
_workerRestarter.Restart(logger);
}
}
public string GetPathWithAcceptableDependencyVersionsInstalled()
{
var lastSnapshotPath = _storage.GetLatestInstalledSnapshot();
if (lastSnapshotPath != null)
{
var dependencies = _storage.GetDependencies();
if (dependencies.All(entry => IsAcceptableVersionInstalled(lastSnapshotPath, entry)))
{
return(lastSnapshotPath);
}
}
return(null);
}