private static ExternalAnnotationsCache TryGetCacheFromDisk()
{
try
{
if (File.Exists(CachePath))
{
using (FileStream stream = File.OpenRead(CachePath))
{
using (new CodeTimer("ExternalAnnotationsCache:Read"))
{
var service = new MsgPackSerializationService();
var result = service.ReadObject <ExternalAnnotationsCache>(stream);
if (result.ExternalAnnotations.Any())
{
return(result);
}
}
}
}
}
catch (UnauthorizedAccessException)
{
}
catch (IOException)
{
}
return(null);
}
private static void TrySaveToDisk([NotNull] ExternalAnnotationsCache cache)
{
try
{
EnsureDirectoryExists();
using (FileStream stream = File.Create(CachePath))
{
using (new CodeTimer("ExternalAnnotationsCache:Write"))
{
var service = new MsgPackSerializationService();
service.WriteObject(cache, stream);
}
}
}
catch (IOException)
{
// When MSBuild runs in parallel, another process may be writing the cache file at the same time.
}
}