private void CreateFileSystemWatchers(BlazorConfig config)
{
// Watch for the "build completed" signal in the dist dir
var distFileWatcher = new FileSystemWatcher(config.DistPath);
distFileWatcher.Deleted += (sender, eventArgs) => {
if (eventArgs.Name.Equals(BlazorBuildCompletedSignalFile, StringComparison.Ordinal))
{
RequestReload(0);
}
};
distFileWatcher.EnableRaisingEvents = true;
_pinnedWatchers.Add(distFileWatcher);
// If there's a WebRootPath, watch for any file modification there
// WebRootPath is only used in dev builds, where we want to serve from wwwroot directly
// without requiring the developer to rebuild after changing the static files there.
// In production there's no need for it.
if (!string.IsNullOrEmpty(config.WebRootPath))
{
var webRootWatcher = new FileSystemWatcher(config.WebRootPath);
webRootWatcher.Deleted += (sender, evtArgs) => RequestReload(WebRootUpdateDelayMilliseconds);
webRootWatcher.Created += (sender, evtArgs) => RequestReload(WebRootUpdateDelayMilliseconds);
webRootWatcher.Changed += (sender, evtArgs) => RequestReload(WebRootUpdateDelayMilliseconds);
webRootWatcher.Renamed += (sender, evtArgs) => RequestReload(WebRootUpdateDelayMilliseconds);
webRootWatcher.EnableRaisingEvents = true;
_pinnedWatchers.Add(webRootWatcher);
}
}
public static void UseBlazorLiveReloading(
this IApplicationBuilder applicationBuilder,
BlazorConfig config)
{
if (!string.IsNullOrEmpty(config.ReloadUri))
{
var context = new LiveReloadingContext();
context.Attach(applicationBuilder, config);
}
}
public void Attach(IApplicationBuilder applicationBuilder, BlazorConfig config)
{
CreateFileSystemWatchers(config);
AddWebSocketsEndpoint(applicationBuilder, config.ReloadUri);
}
