public async Task InitializeAsync()
{
await _threadHandling.Value.SwitchToUIThread();
// Initialize our cache file
string appDataFolder = await _shellUtilitiesHelper.Value.GetLocalAppDataFolderAsync(_vsShellService);
if (appDataFolder != null)
{
_versionDataCacheFile = new RemoteCacheFile(Path.Combine(appDataFolder, s_versionDataFilename), s_versionCompatibilityDownloadFwlink,
TimeSpan.FromHours(s_cacheFileValidHours), _fileSystem.Value, _httpClient);
}
VisualStudioVersion = await _shellUtilitiesHelper.Value.GetVSVersionAsync(_vsAppIdService);
_vsSolution = await _vsSolutionService.GetValueAsync();
Verify.HResult(_vsSolution.AdviseSolutionEvents(this, out _solutionCookie));
// Check to see if a solution is already open. If so we set _solutionOpened to true so that subsequent projects added to
// this solution are processed.
if (ErrorHandler.Succeeded(_vsSolution.GetProperty((int)__VSPROPID4.VSPROPID_IsSolutionFullyLoaded, out object isFullyLoaded)) &&
isFullyLoaded is bool isFullyLoadedBool &&
isFullyLoadedBool)
{
SolutionOpen = true;
// do not block package initialization on this
_threadHandling.Value.RunAndForget(async() =>
{
// First make sure that the cache file exists
if (_versionDataCacheFile.ReadCacheFile() is null)
{
await _versionDataCacheFile.TryToUpdateCacheFileAsync();
}
// check if the project is compatible
await CheckCompatibilityAsync();
}, unconfiguredProject: null);
}
}
/// <summary>
/// Pings the server to download version compatibility information and stores this in a cached file in the users app data. If the cached file is
/// less than 24 hours old, it uses that data. Otherwise it downloads from the server. If the download fails it will use the previously cached
/// file, or if that file doesn't not exist, it uses the data baked into this class
/// </summary>
private VersionCompatibilityData GetVersionCmpatibilityData()
{
// Do we need to update our cached data? Note that since the download could take a long time like tens of seconds we don't really want to
// start showing messages to the user well after their project is opened and they are interacting with it. Thus we start a task to update the
// file, so that the next time we come here, we have updated data.
if (_curVersionCompatibilityData != null && _timeCurVersionDataLastUpdatedUtc.AddHours(CacheFileValidHours).IsLaterThan(DateTime.UtcNow))
{
return(_curVersionCompatibilityData);
}
try
{
// Try the cache file
Dictionary <Version, VersionCompatibilityData> versionCompatData = GetCompabilityDataFromCacheFile();
// See if the cache file needs refreshing and if so, kick off a task to do so
if (_versionDataCacheFile != null && _versionDataCacheFile.CacheFileIsStale())
{
Task noWait = _versionDataCacheFile.TryToUpdateCacheFileAsync(() =>
{
// Invalidate the in-memory cached data on success
_timeCurVersionDataLastUpdatedUtc = DateTime.MinValue;
});
}
if (versionCompatData != null)
{
// First try to match exatly on our VS version and if that fails, match on just major, minor
if (versionCompatData.TryGetValue(_ourVSVersion, out VersionCompatibilityData compatData) || versionCompatData.TryGetValue(new Version(_ourVSVersion.Major, _ourVSVersion.Minor), out compatData))
{
// Now fix up missing data
if (string.IsNullOrEmpty(compatData.OpenSupportedMessage))
{
compatData.OpenSupportedMessage = VSResources.PartialSupportedDotNetCoreProject;
}
if (string.IsNullOrEmpty(compatData.OpenUnsupportedMessage))
{
compatData.OpenUnsupportedMessage = VSResources.NotSupportedDotNetCoreProject;
}
UpdateInMemoryCachedData(compatData);
}
}
}
catch
{
}
if (_curVersionCompatibilityData == null)
{
// Something failed or no remote file, use the compatibility data we shipped with which does not have any warnings
UpdateInMemoryCachedData(new VersionCompatibilityData()
{
OpenSupportedMessage = VSResources.PartialSupportedDotNetCoreProject,
OpenUnsupportedMessage = VSResources.NotSupportedDotNetCoreProject
});
}
return(_curVersionCompatibilityData);
}