public CssMinifier(ILoggerFactory loggerFactory)
{
if (loggerFactory == null)
{
throw new ArgumentNullException(nameof(loggerFactory));
}
_logger = loggerFactory.CreateLogger <CssMinifier>();
_minifier = new KristensenCssMinifier();
}
private static Dictionary <string, Tuple <string, byte[]> > LoadCache(string basePath, string[] extensions = null)
{
//put static files minificated in a memory store -> cache
var staticFilesStorage = new Dictionary <string, Tuple <string, byte[]> >();
//read all static files and load into mmemory
var files = Directory.GetFiles(basePath, "*", SearchOption.AllDirectories).ToList();
if (extensions != null)
{
files = files.Where(f => extensions.Contains(Path.GetExtension(f))).ToList();
}
var minifyJs = new WebMarkupMin.Core.CrockfordJsMinifier();
var minifyCss = new WebMarkupMin.Core.KristensenCssMinifier();
var minifyHtml = new WebMarkupMin.Core.HtmlMinifier();
files.ForEach(file =>
{
var content = File.ReadAllBytes(file);
var ext = Path.GetExtension(file);
//compress or minify
if (Environment.GetEnvironmentVariable("minifyResponse") != "false")
{
switch (ext)
{
case ".js":
//javascript minify
var js = System.Text.UTF8Encoding.Default.GetString(content);
var minifiedJs = minifyJs.Minify(js, false);
if (!minifiedJs.Errors.Any())
{
content = System.Text.UTF8Encoding.Default.GetBytes(minifiedJs.MinifiedContent);
}
break;
case ".css":
//css minify
var css = System.Text.UTF8Encoding.Default.GetString(content);
var minifiedCss = minifyCss.Minify(css, false);
if (!minifiedCss.Errors.Any())
{
content = System.Text.UTF8Encoding.Default.GetBytes(minifiedCss.MinifiedContent);
}
break;
case ".html":
//html minify
var html = System.Text.UTF8Encoding.Default.GetString(content);
var minifiedHtml = minifyHtml.Minify(html, false);
if (!minifiedHtml.Errors.Any())
{
content = System.Text.UTF8Encoding.Default.GetBytes(minifiedHtml.MinifiedContent);
}
break;
}
}
staticFilesStorage.Add(file, new Tuple <string, byte[]>(MimeMapping.MimeUtility.GetMimeMapping(file), content));
});
var usedMemory = Math.Round(staticFilesStorage.Select(s => s.Value).Sum(s => s.Item2.Length) / 1024.0 / 1024.0);
Console.WriteLine($"{staticFilesStorage.Count} static files loaded into memory using {usedMemory} MB");
return(staticFilesStorage);
}
