private bool DetectFileChange(out Encoding overwrittenEncoding)
{
overwrittenEncoding = null;
if (!_filesystem.FileExists(_fullFilename))
{
if (_lastFingerprint != null)
{
_lastFingerprint = null;
Log.DebugFormat("File {0} no longer exists", _fullFilename);
return(true);
}
return(false);
}
var currentFingerprint = FileFingerprint.FromFile(_filesystem, _fullFilename);
if (!Equals(currentFingerprint, _lastFingerprint))
{
Log.DebugFormat("File {0} fingerprint changed from {1} to {2}", _fullFilename, _lastFingerprint, currentFingerprint);
_lastFingerprint = currentFingerprint;
return(true);
}
overwrittenEncoding = _properties.GetValue(TextProperties.OverwrittenEncoding);
var currentEncoding = _properties.GetValue(TextProperties.Encoding);
if (!Equals(overwrittenEncoding, null) && !Equals(overwrittenEncoding, currentEncoding))
{
Log.DebugFormat("File {0} user chose an overwritten encoding {1} which differs from the current encoding {2}", _fullFilename, overwrittenEncoding, overwrittenEncoding);
return(true);
}
return(false);
}
private bool HasFileChanged(out FileFingerprint currentFingerprint, out FileFingerprint lastFingerprint)
{
lastFingerprint = _lastFingerprint;
currentFingerprint = FileFingerprint.FromFile(_fileName);
if (Equals(currentFingerprint, _lastFingerprint))
{
return(false);
}
_lastFingerprint = currentFingerprint;
_propertiesBuffer.SetValue(Core.Properties.LastModified, currentFingerprint.LastModified);
_propertiesBuffer.SetValue(Core.Properties.Created, currentFingerprint.Created);
_propertiesBuffer.SetValue(Core.Properties.Size, Size.FromBytes(currentFingerprint.Size));
return(true);
}