protected virtual IReadOnlyList <string> GetBundleFiles(BundleConfigurationCollection bundles, string bundleName, IBundler bundler)
{
var contributors = GetContributors(bundles, bundleName);
var bundleFiles = RequestResources.TryAdd(GetBundleFiles(contributors));
var dynamicResources = RequestResources.TryAdd(GetDynamicResources(contributors));
if (!IsBundlingEnabled())
{
return(bundleFiles.Union(dynamicResources).ToImmutableList());
}
var bundleRelativePath =
Options.BundleFolderName.EnsureEndsWith('/') +
bundleName + "." + bundleFiles.JoinAsString("|").ToMd5() + "." + bundler.FileExtension;
var cacheItem = BundleCache.GetOrAdd(bundleRelativePath, () =>
{
var cacheValue = new BundleCacheItem(
new List <string>
{
"/" + bundleRelativePath
}
);
WatchChanges(cacheValue, bundleFiles, bundleRelativePath);
var bundleResult = bundler.Bundle(
new BundlerContext(
bundleRelativePath,
bundleFiles,
IsMinficationEnabled()
)
);
SaveBundleResult(bundleRelativePath, bundleResult);
return(cacheValue);
});
return(cacheItem.Files.Union(dynamicResources).ToImmutableList());
}
private void WatchChanges(BundleCacheItem cacheValue, List <string> files, string bundleRelativePath)
{
lock (cacheValue.WatchDisposeHandles)
{
foreach (var file in files)
{
var watchDisposeHandle = WebContentFileProvider.Watch(file).RegisterChangeCallback(_ =>
{
lock (cacheValue.WatchDisposeHandles)
{
cacheValue.WatchDisposeHandles.ForEach(h => h.Dispose());
cacheValue.WatchDisposeHandles.Clear();
}
BundleCache.Remove(bundleRelativePath);
DynamicFileProvider.Delete("/wwwroot/" + bundleRelativePath); //TODO: get rid of wwwroot!
}, null);
cacheValue.WatchDisposeHandles.Add(watchDisposeHandle);
}
}
}
