// ATTENTION: Use ConsoleWriter instead of Console.WriteLine to use Colors
/// <summary>
/// Starts the backup program initiating all required actions like profile choosing, parsing and running
/// the backup.
/// </summary>
/// <param name="args">unused command line arguments</param>
static void Main(string[] args)
{
// change to English for testing
//Thread.CurrentThread.CurrentUICulture = CultureInfo.GetCultureInfo("en");
try
{
// init profile selector (might throw BackupException if "../backup_profiles" does not exist)
BackupProfileSelector profileSelector = new BackupProfileSelector();
profileSelector.InitProfilePaths();
// create necessary instances
BackupProfileConverter profileConverter = new BackupProfileConverter();
ExcludeUtil excludeUtil = new ExcludeUtil();
// execute main loop (might forward BackupException if the backup cannot be processed)
Start starter = new Start();
starter.DoMainLoop(profileSelector, profileConverter, excludeUtil);
}
catch (BackupException e)
{
// all BackupExceptions are forwarded here to provide a single exit point when an error occurs
ExitUtil.ExitAfterError(e);
}
// backup was successful or regularly cancelled by user, so exit the application in the default way
ExitUtil.ExitWithoutError();
}
/// <summary>
/// Creates an instance of BackupRunner which is responsible for doing the actual backup defined by the
/// given profile.
/// The profile should be validated since the BackupRunner does rely on it.
/// </summary>
/// <param name="profile">a valid backup profile</param>
/// <param name="excludeUtil">an instance for checking paths which should be excluded by the backup</param>
public BackupRunner(BackupProfile profile, ExcludeUtil excludeUtil)
{
_profile = profile;
_excludeUtil = excludeUtil;
}
/// <summary>
/// The main loop executes the following steps:<br />
/// 1. Print start message, explain usage of application<br />
/// 2. Let the user select a profile<br />
/// 3. Do a backup according to the selected profile<br />
/// 4. Ask if another backup run should be started<br />
/// 5. Exit or repeat from step 1<br />
/// <br />
/// If an error occurs while executing the main loop, a BackupException will be thrown by the sub methods
/// and is forwarded to the Main method for unifying the exit points of the application.
/// </summary>
/// <param name="profileSelector">an instance for selecting a backup profile</param>
/// <param name="profileConverter">an instance for converting a backup profile from a xml file to an internal representation</param>
/// <param name="excludeUtil">an instance for checking paths which should be excluded by the backup</param>
private void DoMainLoop(BackupProfileSelector profileSelector, BackupProfileConverter profileConverter, ExcludeUtil excludeUtil)
{
// endless loop to enable multiple backup runs without restarting the program
// => only stops if an error occurs or if the user does not want to do another run
bool doAnotherRun = true;
while (doAnotherRun)
{
// starting message to explain the usage of the application
ConsoleWriter.WriteApplicationTitle();
PrintStartingMessage();
// let the user select a backup profile or cancel the application
string profilePath = profileSelector.SelectBackupProfile();
if (profilePath == null)
{
break;
}
// load selected profile (might throw BackupException if invalid)
BackupProfile profile = profileConverter.LoadBackupProfile(profilePath, profileSelector.IsDryRunSelected);
// valid profile, do backup (might throw BackupException)
BackupRunner backupRunner = new BackupRunner(profile, excludeUtil);
backupRunner.RunBackup();
// if reached here, the backup is completed without errors
// => ask the user if another backup run should be done
doAnotherRun = AskForAnotherRun();
}
}
