bool SetTimestampsFromInfoZipUnixOriginal(IList <ExtraField> fields, WindowsZipEntry entry)
{
if (fields == null || fields.Count == 0)
{
return(false);
}
DateTime modTime = DateTime.MinValue;
DateTime accTime = DateTime.MinValue;
ForEachExtraField(fields, true, (ExtraField ef) => {
var izef = new ExtraField_InfoZipUnixOriginal(ef);
SetOriginalUnixTimeStampTimes(izef, ref modTime, ref accTime);
});
if (modTime == DateTime.MinValue)
{
ForEachExtraField(fields, false, (ExtraField ef) => SetOriginalUnixTimeStampTimes(new ExtraField_InfoZipUnixOriginal(ef), ref modTime, ref accTime));
}
if (modTime != DateTime.MinValue)
{
entry.ModificationTime = modTime;
}
// We ignore ID/GID here because it's less important than timestamps which may be set from other
// fields should this one lack any of them.
return(modTime != DateTime.MinValue || accTime != DateTime.MinValue);
}
void SetOriginalUnixTimeStampTimes(ExtraField_InfoZipUnixOriginal tstamp, ref DateTime modTime, ref DateTime accTime)
{
if (!tstamp.DataValid)
{
return;
}
if (tstamp.ModificationTime != DateTime.MinValue)
{
modTime = tstamp.ModificationTime;
}
if (tstamp.AccessTime != DateTime.MinValue)
{
accTime = tstamp.AccessTime;
}
}