internal string Initialize(ILogger logger)
{
try
{
// Parse and process the function app dependencies defined in the manifest.
_dependenciesFromManifest = _storage.GetDependencies().ToArray();
if (!_dependenciesFromManifest.Any())
{
logger.Log(isUserOnlyLog: true, LogLevel.Warning, PowerShellWorkerStrings.FunctionAppDoesNotHaveRequiredModulesToInstall);
return(null);
}
_currentSnapshotPath = _installedDependenciesLocator.GetPathWithAcceptableDependencyVersionsInstalled()
?? _storage.CreateNewSnapshotPath();
_backgroundSnapshotMaintainer.Start(_currentSnapshotPath, _dependenciesFromManifest, logger);
_newerSnapshotDetector.Start(_currentSnapshotPath, logger);
_currentSnapshotContentLogger.Start(_currentSnapshotPath, logger);
return(_currentSnapshotPath);
}
catch (Exception e)
{
var errorMsg = string.Format(PowerShellWorkerStrings.FailToInstallFuncAppDependencies, e.Message);
throw new DependencyInstallationException(errorMsg, e);
}
}
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);
}
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);
}