void SetState(SvnItemState set, SvnItemState unset)
{
// NOTE: This method is /not/ thread safe, but its callers have race conditions anyway
// Setting an integer could worst case completely destroy the integer; nothing a refresh can't fix
var st = (_currentState & ~unset) | set;
if (st != _currentState)
{
// Calculate whether we have a change or just new information
var changed = (st & _onceValid & _noBroadcastFor) != (_currentState & _onceValid & _noBroadcastFor);
if (changed && !_enqueued)
{
_enqueued = true;
// Schedule a stat changed broadcast
lock (_stateChanged)
{
_stateChanged.Enqueue(this);
ScheduleUpdateNotify();
}
}
_currentState = st;
}
_validState |= (set | unset);
_onceValid |= _validState;
}
private void SetDirty(SvnItemState dirty)
{
// NOTE: This method is /not/ thread safe, but its callers have race conditions anyway
// Setting an integer could worst case completely destroy the integer; nothing a refresh can't fix
_validState &= ~dirty;
}
bool TryGetState(SvnItemState mask, out SvnItemState result)
{
if ((mask & _validState) != mask)
{
result = SvnItemState.None;
return(false);
}
result = _currentState & mask;
return(true);
}
void UpdateMustLock()
{
SvnItemState fastValue = SvnItemState.IsDiskFile | SvnItemState.ReadOnly;
SvnItemState slowValue = SvnItemState.Versioned;
SvnItemState v;
bool mustLock;
if (TryGetState(SvnItemState.Versioned, out v) && (v == 0))
{
mustLock = false;
}
else if (TryGetState(SvnItemState.HasProperties, out v) && (v == 0))
{
mustLock = false;
}
else if (TryGetState(SvnItemState.ReadOnly, out v) && (v == 0))
{
mustLock = false;
}
else if (GetState(fastValue) != fastValue)
{
mustLock = false;
}
else if (GetState(slowValue) != slowValue)
{
mustLock = false;
}
else
{
using (SvnClient client = _context.GetService <ISvnClientPool>().GetNoUIClient())
{
string propVal;
if (client.TryGetProperty(FullPath, SvnPropertyNames.SvnNeedsLock, out propVal))
{
mustLock = propVal != null; // Value should be equal to SvnPropertyNames.SvnBooleanValue
}
else
{
mustLock = false;
}
}
}
if (mustLock)
{
SetState(SvnItemState.MustLock, SvnItemState.None);
}
else
{
SetState(SvnItemState.None, SvnItemState.MustLock);
}
}
void UpdateTextFile()
{
SvnItemState value = SvnItemState.IsDiskFile | SvnItemState.Versioned;
SvnItemState v;
bool isTextFile;
if (TryGetState(SvnItemState.Versioned, out v) && (v == 0))
{
isTextFile = false;
}
else if (GetState(value) != value)
{
isTextFile = false;
}
else
{
using (SvnWorkingCopyClient client = _context.GetService <ISvnClientPool>().GetWcClient())
{
SvnWorkingCopyStateArgs a = new SvnWorkingCopyStateArgs();
a.ThrowOnError = false;
a.RetrieveFileData = true;
SvnWorkingCopyState state;
if (client.GetState(FullPath, out state))
{
isTextFile = state.IsTextFile;
}
else
{
isTextFile = false;
}
}
}
if (isTextFile)
{
SetState(SvnItemState.IsTextFile, SvnItemState.None);
}
else
{
SetState(SvnItemState.None, SvnItemState.IsTextFile);
}
}
void UpdateAttributeInfo()
{
// One call of the kernel's GetFileAttributesW() gives us most info we need
uint value = NativeMethods.GetFileAttributes(FullPath);
if (value == NativeMethods.INVALID_FILE_ATTRIBUTES)
{
// File does not exist / no rights, etc.
SetState(SvnItemState.None,
SvnItemState.Exists | SvnItemState.ReadOnly | SvnItemState.MustLock | SvnItemState.Versionable | SvnItemState.IsDiskFolder | SvnItemState.IsDiskFile);
return;
}
SvnItemState set = SvnItemState.Exists;
SvnItemState unset = SvnItemState.None;
if ((value & NativeMethods.FILE_ATTRIBUTE_READONLY) != 0)
{
set |= SvnItemState.ReadOnly;
}
else
{
unset = SvnItemState.ReadOnly;
}
if ((value & NativeMethods.FILE_ATTRIBUTE_DIRECTORY) != 0)
{
unset |= SvnItemState.IsDiskFile | SvnItemState.ReadOnly;
set = SvnItemState.IsDiskFolder | (set & ~SvnItemState.ReadOnly); // Don't set readonly
}
else
{
set |= SvnItemState.IsDiskFile;
unset |= SvnItemState.IsDiskFolder;
}
SetState(set, unset);
}
/// <summary>
/// Copies all information from other.
/// </summary>
/// <param name="lead"></param>
/// <remarks>When this method is called the other item will eventually replace this item</remarks>
void ISvnItemUpdate.RefreshTo(SvnItem lead)
{
if (lead == null)
{
throw new ArgumentNullException("lead");
}
else if (lead._status == null)
{
throw new InvalidOperationException("Lead status = null");
}
_status = lead._status;
_statusDirty = lead._statusDirty;
SvnItemState current = lead._currentState;
SvnItemState valid = lead._validState;
SetState(current & valid, (~current) & valid);
_ticked = false;
_modified = lead._modified;
_cookie = NextCookie(); // Status 100% the same, but changed... Cookies are free ;)
}
void RefreshTo(NoSccStatus status, SvnNodeKind nodeKind)
{
_cookie = NextCookie();
_statusDirty = XBool.False;
SvnItemState set = SvnItemState.None;
SvnItemState unset = SvnItemState.Modified | SvnItemState.Added | SvnItemState.HasCopyOrigin
| SvnItemState.Deleted | SvnItemState.ContentConflicted | SvnItemState.Ignored
| SvnItemState.Obstructed | SvnItemState.Replaced | SvnItemState.Versioned
| SvnItemState.SvnDirty | SvnItemState.PropertyModified | SvnItemState.PropertiesConflicted | SvnItemState.Conflicted
| SvnItemState.Obstructed | SvnItemState.MustLock | SvnItemState.IsWCRoot
| SvnItemState.HasProperties | SvnItemState.HasLockToken | SvnItemState.HasCopyOrigin
| SvnItemState.MovedHere;
switch (status)
{
case NoSccStatus.NotExisting:
SetState(set, SvnItemState.Exists | SvnItemState.ReadOnly | SvnItemState.IsDiskFile | SvnItemState.IsDiskFolder | SvnItemState.Versionable | unset);
_status = SvnStatusData.NotExisting;
break;
case NoSccStatus.NotVersionable:
unset |= SvnItemState.Versionable;
goto case NoSccStatus.NotVersioned; // fall through
case NoSccStatus.NotVersioned:
SetState(SvnItemState.Exists | set, SvnItemState.None | unset);
_status = SvnStatusData.NotVersioned;
break;
case NoSccStatus.Unknown:
default:
SetDirty(set | unset);
_statusDirty = XBool.True;
break;
}
InitializeFromKind(nodeKind);
}
void RefreshTo(SvnStatusData status)
{
if (status == null)
{
throw new ArgumentNullException("status");
}
if (status.LocalNodeStatus == SvnStatus.External)
{
// When iterating the status of an external in it's parent directory
// We get an external status and no really usefull information
SetState(SvnItemState.Exists | SvnItemState.Versionable | SvnItemState.IsDiskFolder,
SvnItemState.IsDiskFile | SvnItemState.ReadOnly | SvnItemState.MustLock | SvnItemState.IsTextFile);
if (_statusDirty != XBool.False)
{
_statusDirty = XBool.True; // Walk the path itself to get the data you want
}
return;
}
else if (MightBeNestedWorkingCopy(status) && IsDirectory)
{
// A not versioned directory might be a working copy by itself!
if (_statusDirty == XBool.False)
{
return; // No need to remove valid cache entries
}
if (SvnTools.IsManagedPath(FullPath))
{
_statusDirty = XBool.True; // Walk the path itself to get the data
// Extract useful information we got anyway
SetState(SvnItemState.Exists | SvnItemState.Versionable | SvnItemState.Versioned | SvnItemState.IsWCRoot | SvnItemState.IsDiskFolder,
SvnItemState.IsDiskFile | SvnItemState.ReadOnly | SvnItemState.MustLock | SvnItemState.IsTextFile);
return;
}
else
{
SetState(SvnItemState.None, SvnItemState.IsWCRoot);
}
// Fall through
}
_cookie = NextCookie();
_statusDirty = XBool.False;
_status = status;
const SvnItemState unset = SvnItemState.Modified | SvnItemState.Added |
SvnItemState.HasCopyOrigin | SvnItemState.Deleted | SvnItemState.ContentConflicted |
SvnItemState.Ignored | SvnItemState.Obstructed | SvnItemState.Replaced |
SvnItemState.MovedHere;
const SvnItemState managed = SvnItemState.Versioned;
// Let's assume status is more recent than our internal property cache
// Set all caching properties we can
bool svnDirty = true;
bool exists = true;
bool provideDiskInfo = true;
switch (status.LocalNodeStatus)
{
case SvnStatus.None:
SetState(SvnItemState.None, managed | unset);
svnDirty = false;
exists = false;
provideDiskInfo = false;
break;
case SvnStatus.NotVersioned:
// Node exists but is not managed by us in this directory
// (Might be from an other location as in the nested case)
SetState(SvnItemState.None, unset | managed);
svnDirty = false;
break;
case SvnStatus.Ignored:
// Node exists but is not managed by us in this directory
// (Might be from an other location as in the nested case)
SetState(SvnItemState.Ignored, unset | managed);
svnDirty = false;
break;
case SvnStatus.Added:
if (status.IsMoved && status.IsCopied)
{
SetState(managed | SvnItemState.Added | SvnItemState.HasCopyOrigin | SvnItemState.MovedHere, unset);
}
else if (status.IsCopied)
{
SetState(managed | SvnItemState.Added | SvnItemState.HasCopyOrigin, unset);
}
else
{
SetState(managed | SvnItemState.Added, unset);
}
if (status.LocalTextStatus == SvnStatus.Modified)
{
SetState(SvnItemState.Modified, SvnItemState.None);
}
else if (status.LocalTextStatus == SvnStatus.Normal)
{
SetState(SvnItemState.None, SvnItemState.Modified);
}
break;
case SvnStatus.Replaced:
if (status.IsMoved && status.IsCopied)
{
SetState(managed | SvnItemState.Replaced | SvnItemState.HasCopyOrigin | SvnItemState.MovedHere, unset);
}
else if (status.IsCopied)
{
SetState(managed | SvnItemState.Replaced | SvnItemState.HasCopyOrigin, unset);
}
else
{
SetState(managed | SvnItemState.Replaced, unset);
}
if (status.LocalTextStatus == SvnStatus.Modified)
{
SetState(SvnItemState.Modified, SvnItemState.None);
}
else if (status.LocalTextStatus == SvnStatus.Normal)
{
SetState(SvnItemState.None, SvnItemState.Modified);
}
break;
case SvnStatus.Modified:
case SvnStatus.Conflicted:
{
bool done = false;
switch (status.LocalTextStatus)
{
case SvnStatus.Modified:
SetState(managed | SvnItemState.Modified, unset);
done = true;
break;
case SvnStatus.Conflicted:
SetState(managed | SvnItemState.ContentConflicted | SvnItemState.Conflicted, unset);
done = true;
break;
}
if (!done)
{
goto case SvnStatus.Normal;
}
break;
}
case SvnStatus.Obstructed: // node exists but is of the wrong type
SetState(SvnItemState.None, managed | unset);
provideDiskInfo = false; // Info is wrong
break;
case SvnStatus.Missing:
exists = false;
provideDiskInfo = false; // Info is wrong
SetState(managed, unset);
break;
case SvnStatus.Deleted:
SetState(managed | SvnItemState.Deleted, unset);
if (status.LocalFileExists)
{
exists = provideDiskInfo = true;
}
else
{
exists = false;
provideDiskInfo = false; // Folder might still exist
}
break;
case SvnStatus.External:
// Should be handled above
throw new InvalidOperationException();
case SvnStatus.Incomplete:
SetState(managed, unset);
break;
default:
Trace.WriteLine(string.Format("Ignoring undefined status {0} in SvnItem.Refresh()", status.LocalNodeStatus));
provideDiskInfo = false; // Can't trust an unknown status
goto case SvnStatus.Normal;
case SvnStatus.Normal:
SetState(managed | SvnItemState.Exists, unset);
svnDirty = false;
break;
}
if (exists)
{
SetState(SvnItemState.Versionable, SvnItemState.None);
}
else
{
SetState(SvnItemState.None, SvnItemState.Versionable);
}
if (status.Conflicted)
{
SetState(SvnItemState.Conflicted, SvnItemState.None);
}
else
{
SetState(SvnItemState.None, SvnItemState.Conflicted);
}
bool hasProperties = true;
switch (status.LocalPropertyStatus)
{
case SvnStatus.None:
hasProperties = false;
SetState(SvnItemState.None, SvnItemState.PropertiesConflicted | SvnItemState.PropertyModified | SvnItemState.HasProperties);
break;
case SvnStatus.Modified:
SetState(SvnItemState.PropertyModified | SvnItemState.HasProperties,
SvnItemState.PropertiesConflicted);
svnDirty = true;
break;
case SvnStatus.Conflicted:
SetState(SvnItemState.PropertyModified | SvnItemState.PropertiesConflicted | SvnItemState.HasProperties,
SvnItemState.None);
svnDirty = true;
break;
case SvnStatus.Normal:
default:
SetState(SvnItemState.HasProperties,
SvnItemState.PropertiesConflicted | SvnItemState.PropertyModified);
break;
}
if (svnDirty)
{
SetState(SvnItemState.SvnDirty, SvnItemState.None);
}
else
{
SetState(SvnItemState.None, SvnItemState.SvnDirty);
}
if (!hasProperties)
{
SetState(SvnItemState.None, SvnItemState.MustLock);
}
if (provideDiskInfo)
{
if (exists) // Behaviour must match updating from UpdateAttributeInfo()
{
switch (status.NodeKind)
{
case SvnNodeKind.Directory:
SetState(SvnItemState.IsDiskFolder | SvnItemState.Exists, SvnItemState.ReadOnly | SvnItemState.MustLock | SvnItemState.IsTextFile | SvnItemState.IsDiskFile);
break;
case SvnNodeKind.File:
SetState(SvnItemState.IsDiskFile | SvnItemState.Exists, SvnItemState.IsDiskFolder);
break;
default:
// Handle direct replacement without an additional stat
if (status.LocalFileExists)
{
goto case SvnNodeKind.File;
}
break;
}
}
else
{
SetState(SvnItemState.None, SvnItemState.Exists);
}
}
if (status.IsLockedLocal)
{
SetState(SvnItemState.HasLockToken, SvnItemState.None);
}
else
{
SetState(SvnItemState.None, SvnItemState.HasLockToken);
}
}
public SvnItemState GetState(SvnItemState flagsToGet)
{
var unavailable = flagsToGet & ~_validState;
if (unavailable == 0)
{
return(_currentState & flagsToGet); // We have everything we need
}
if (0 != (unavailable & _maskRefreshTo))
{
Debug.Assert(_statusDirty != XBool.False);
RefreshStatus();
unavailable = flagsToGet & ~_validState;
Debug.Assert((~_validState & _maskRefreshTo) == 0, "RefreshMe() set all attributes it should");
}
if (0 != (unavailable & _maskGetAttributes))
{
UpdateAttributeInfo();
unavailable = flagsToGet & ~_validState;
Debug.Assert((~_validState & _maskGetAttributes) == 0, "UpdateAttributeInfo() set all attributes it should");
}
if (0 != (unavailable & _maskUpdateSolution))
{
UpdateSolutionInfo();
unavailable = flagsToGet & ~_validState;
Debug.Assert((~_validState & _maskUpdateSolution) == 0, "UpdateSolution() set all attributes it should");
}
if (0 != (unavailable & _maskDocumentInfo))
{
UpdateDocumentInfo();
unavailable = flagsToGet & ~_validState;
Debug.Assert((~_validState & _maskDocumentInfo) == 0, "UpdateDocumentInfo() set all attributes it should");
}
if (0 != (unavailable & _maskVersionable))
{
UpdateVersionable();
unavailable = flagsToGet & ~_validState;
Debug.Assert((~_validState & _maskVersionable) == 0, "UpdateVersionable() set all attributes it should");
}
if (0 != (unavailable & _maskMustLock))
{
UpdateMustLock();
unavailable = flagsToGet & ~_validState;
Debug.Assert((~_validState & _maskMustLock) == 0, "UpdateMustLock() set all attributes it should");
}
if (0 != (unavailable & _maskTextFile))
{
UpdateTextFile();
unavailable = flagsToGet & ~_validState;
Debug.Assert((~_validState & _maskTextFile) == 0, "UpdateTextFile() set all attributes it should");
}
if (0 != (unavailable & _maskWCRoot))
{
UpdateWCRoot();
unavailable = flagsToGet & ~_validState;
Debug.Assert((~_validState & _maskWCRoot) == 0, "UpdateWCRoot() set all attributes it should");
}
if (0 != (unavailable & _maskIsAdministrativeArea))
{
UpdateAdministrativeArea();
unavailable = flagsToGet & ~_validState;
Debug.Assert((~_validState & _maskIsAdministrativeArea) == 0, "UpdateIsAdministrativeArea() set all attributes it should");
}
if (unavailable != 0)
{
Trace.WriteLine(string.Format("Don't know how to retrieve {0:X} state; clearing dirty flag", (int)unavailable));
_validState |= unavailable;
}
return(_currentState & flagsToGet);
}
bool ISvnItemUpdate.TryGetState(SvnItemState get, out SvnItemState value)
{
return(TryGetState(get, out value));
}
void ISvnItemUpdate.SetDirty(SvnItemState dirty)
{
SetDirty(dirty);
}
void ISvnItemUpdate.SetState(SvnItemState set, SvnItemState unset)
{
SetState(set, unset);
}
