public SparkleFetcherRsync(string server, string remote_folder, string target_folder)
: base(server, remote_folder, target_folder)
{
if (server.EndsWith ("/"))
server = server.Substring (0, server.Length - 1);
if (!remote_folder.StartsWith ("/"))
remote_folder = "/" + remote_folder;
remote_folder = remote_folder.Substring (0, (remote_folder.Length - 6));
Uri uri;
try {
uri = new Uri (server + remote_folder);
} catch (UriFormatException) {
uri = new Uri ("rsync://" + server + remote_folder);
}
if (string.IsNullOrEmpty (uri.UserInfo)) {
uri = new Uri (uri.Scheme + "://rsync@" + uri.Host + ":" + uri.Port + uri.AbsolutePath);
uri = new Uri (uri.ToString ().Replace (":-1", ""));
}
base.target_folder = target_folder;
base.remote_url = uri.ToString();
string tmpPort = uri.Port.ToString();
string tmpRsyncRemoteUrl = uri.UserInfo + "@" + uri.Host + ":" + uri.AbsolutePath;
this.rsync = new SparkleRsync(SparkleConfig.DefaultConfig.TmpPath,"--version")
{ port = tmpPort, rsync_remote_url = tmpRsyncRemoteUrl };
}
public override bool Fetch()
{
SparkleRsync rsync = new SparkleRsync (SparkleConfig.DefaultConfig.TmpPath,
"-e \"ssh -p " + this.rsync.port + "\" " + "-azviP \"" + this.rsync.rsync_remote_url + "\" " + "\"" + base.target_folder + "\"");
rsync.Start ();
rsync.WaitForExit ();
SparkleHelpers.DebugInfo ("Rsync", "Exit code " + rsync.ExitCode.ToString ());
if (rsync.ExitCode != 0) {
return false;
} else {
InstallConfiguration ();
InstallExcludeRules ();
return true;
}
}
private string RemoteChanges()
{
// TODO: Check if there is an equivalent for --itemize which has been
// removed because of not being detected
SparkleRsync rsync = new SparkleRsync (LocalPath,
"--archive --compress --dry-run --partial --delete --exclude-from=.sparkleshare \"" + Url + "\" " + ".");
rsync.Start ();
rsync.WaitForExit ();
string remote_revision = rsync.StandardOutput.ReadToEnd ().TrimEnd ();
return remote_revision ;
}
private void ResolveConflict()
{
//some conflict resolution code in python: http://sujitpal.blogspot.com/2009/12/unison-replacement-with-rsync.htm
//local changes
// TODO: Check if there is an equivalent for --itemize which has been
// removed because of not being detected
SparkleRsync rsync = new SparkleRsync (LocalPath,
"--archive --compress --dry-run --partial --delete --exclude-from=.sparkleshare " + "\"" + Url + "\"");
rsync.Start ();
rsync.WaitForExit ();
string local_changes = rsync.StandardOutput.ReadToEnd ().TrimEnd ();
//remote changes
// TODO: Check if there is an equivalent for --itemize which has been
// removed because of not being detected
rsync = new SparkleRsync (LocalPath,
"--archive --compress --dry-run --partial --delete --exclude-from=.sparkleshare \"" + Url + "\" " + ".");
rsync.Start ();
rsync.WaitForExit ();
string remote_changes = rsync.StandardOutput.ReadToEnd ().TrimEnd ();
//need to compare local_changes with remote_changes to check for overlapping files
//look at each overlap and see if they are both modified or:
//it the local version has been modified, but the server version was removed
//and the opposite, where the local version was deleted and the server version was modified
//for simple conflicts where the local and server version were both modified
//(need to look at timestamps and rsync log since rsync doesn't have a record of modifications)
//just apply a suffix (usernames + timestamps) and keep both files
//**DELETED FILES**
//there is a complexity that arrises when a file is locally modified by one person after being deleted on the server by someone else
//since there is no record of if the file was actually locally modified other than the timestamp
//might need to compare the modification-timestamp of the local files to the time of last sync (from the log)
//for files that are deleted on the server, then if they were modified copy them to the server with a suffix
//otherwise delete them locally...
//the rsync dry run will report which files are scheduled for deletion in the upcoming sync
//the output from the rsync command can inform if the file was deleted
//see: http://samba.anu.edu.au/ftp/rsync/rsync.html section on itemize changes
// Append a timestamp to local version
string timestamp = DateTime.Now.ToString ("HH:mm MMM d");
}
//the option --inplace is good if your server uses block level snapshots (ex. ZFS) but it increases network throughput
//maybe make a config file option?
//Windows<->Solaris will want to use -A to preserve ACLs
//--delete will delete files on the server that were deleted locally (need to make sure that the server copy wasnt modified...)
public override bool SyncUp()
{
//delete can cause problems -- see comments in the conflict code
// TODO: Check if there is an equivalent for --itemize which has been
// removed because of not being detected
SparkleRsync rsync = new SparkleRsync (LocalPath,
"--archive --compress --partial --delete --delete-during --exclude-from=.sparkleshare --log-file=.rsynclog . " + "\"" + Url + "\"");
rsync.Start ();
rsync.WaitForExit ();
if (rsync.ExitCode == 0)
return true;
else
return false;
}
