private static FileSymbolCache GetDefaultCache()
{
FileSymbolCache?cache = s_cache;
if (cache != null)
{
return(cache);
}
// We always expect to be able to create a temporary directory
Directory.CreateDirectory(s_defaultCacheLocation);
cache = new FileSymbolCache(s_defaultCacheLocation);
Interlocked.CompareExchange(ref s_cache, cache, null);
return(s_cache !);
}
internal SymbolServer(FileSymbolCache cache, string server)
{
if (cache is null)
{
throw new ArgumentNullException(nameof(cache));
}
_cache = cache;
Server = server;
if (IsSymweb(server))
{
SupportsCompression = false;
SupportsRedirection = true;
}
}
public static IFileLocator CreateFromSymbolPath(string symbolPath)
{
FileSymbolCache defaultCache = GetDefaultCache();
List <IFileLocator> locators = new List <IFileLocator>();
bool first = false;
SymbolServer?single = null;
foreach ((string?Cache, string[] Servers) in symbolPath.Split(new char[] { ';' }, StringSplitOptions.RemoveEmptyEntries).Select(EnumerateEntries))
{
if (Servers.Length == 0)
{
continue;
}
FileSymbolCache cache = defaultCache;
if (Cache != null && !defaultCache.Location.Equals(Cache, FileSymbolCache.IsCaseInsensitiveFileSystem ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal))
{
Directory.CreateDirectory(Cache);
cache = new FileSymbolCache(Cache);
// if the cache is not the default, we have to add it to the list of locators so we check there before hitting the symbol server
locators.Add(cache);
}
foreach (string server in Servers)
{
if (server.StartsWith("http:", StringComparison.OrdinalIgnoreCase) || server.StartsWith("https:", StringComparison.OrdinalIgnoreCase))
{
SymbolServer symSvr = new SymbolServer(cache, server);
locators.Add(symSvr);
if (first)
{
single = symSvr;
first = false;
}
else
{
single = null;
}
}
else if (Directory.Exists(server))
{
locators.Add(new FileSymbolCache(server));
}
else
{
Trace.WriteLine($"Ignoring symbol part: {server}");
}
}
}
if (single != null)
{
return(single);
}
if (locators.Count == 0)
{
return(new SymbolServer(defaultCache, SymbolServer.Msdl));
}
return(new SymbolGroup(locators));
}