【发布时间】：2013-12-03 09:17:52
【问题描述】：
是否有库存或可插入方式（如 NuGet 包）让我在我使用它们的 MVC 视图和部分中声明 .js、.css 和理想情况下的 .less 文件，并让它们自动运行在生产中捆绑和缩小？ （又名“Autobunding”）
我已经尝试了内置的 MVC 4 捆绑。我不喜欢在 BundleConfig.cs 中定义的捆绑包远离页面作者期望找到它们的位置。这对于非 C# 团队成员是行不通的。
作为我正在寻找的示例，这是我自己使用SquishIt 拼凑而成的。
ExtendedViewPage.cs
/// <summary>
/// Caches a bundle of .js and/or .css specific to this ViewPage, at a path similar to:
/// shared_signinpartial_F3BD3CCE1DFCEA70F5524C57164EB48E.js
/// </summary>
public abstract class ExtendedViewPage<TModel> : WebViewPage<TModel> {
// This is where I keep my assets, and since I don't actually store any in my root,
// I emit all my bundles here. I also use the the web deployment engine,
// and remove extra files on publish, so I never personally have to clean them up,
// and I also don't have to hand-identify generated bundles from original code.
// However, to keep from needing to give the app write permissions
// on a static content folder, or collocate bundles with original assets,
// or conform to a specific asset path, this should surely be configurable
private const string ASSET_PATH = "~/assets/";
/// <summary>
/// Emits here the bundled resources declared with "AddResources" on all child controls
/// </summary>
public MvcHtmlString ResourceLinks {
get {
return MvcHtmlString.Create(
string.Join("", CssResourceLinks) + string.Join("", JsResourceLinks));
}
}
// This allows all resources to be specified in a single command,
// which permits .css and .js resources to be declared in an
// interwoven manner, in any order the site author prefers
// For me, this makes it clearer, to group my related .css and .js links,
// and to place my often control-specific CSS near last in the list
/// <summary>
/// Queues compressible resources to be emitted with the ResourceLinks directive
/// </summary>
/// <param name="resourceFiles">Project paths to JavaScript and/or CSS files</param>
public void AddResources(params string[] resourceFiles) {
var css = FilterFileExtension(resourceFiles, ".css");
AddCssResources(css);
var js = FilterFileExtension(resourceFiles, ".js");
AddJsResources(js);
}
/// <summary>
/// Bundles JavaScript files to be emitted with the ResourceLinks directive
/// </summary>
/// <param name="resourceFiles">Zero or more project paths to JavaScript files</param>
public void AddJsResources(params string[] resourceFiles) {
if (resourceFiles.Any()) {
JavaScriptBundle jsBundle = Bundle.JavaScript();
foreach (string jsFile in resourceFiles) {
jsBundle.Add(jsFile);
}
// Pages render from the inside-out, which is required for us to expose
// our resources declared in children to the parent where they are emitted
// however, it also means our resources naturally collect here in an order
// that is probably not what the site author intends.
// We reverse the order with insert
JsResourceLinks.Insert(0, jsBundle.MvcRender(ASSET_PATH + ViewIdentifier + "_#.js"));
}
}
/// <summary>
/// Bundles CSS files to be emitted with the ResourceLinks directive
/// </summary>
/// <param name="resourceFiles">Zero or more project paths to CSS files</param>
public void AddCssResources(params string[] resourceFiles) {
// Create a separate reference for each CSS path, since CSS files typically include path-relative images.
foreach (
var cssFolder in resourceFiles.
GroupBy(r => r.Substring(0, r.LastIndexOf('/')).ToLowerInvariant()).
// Note the CssResourceLinks.Insert command below reverses not only desirably
// the order of view emission, but also undesirably reverses the order of resources within this one view.
// for this page we'll 'pre-reverse' them. There's probably a clearer way to address this.
Reverse()) {
CSSBundle cssBundle = Bundle.Css();
foreach (string cssFile in cssFolder) {
cssBundle.Add(cssFile);
}
// See JsResourceLinks.Insert comment above
CssResourceLinks.Insert(0, cssBundle.MvcRender(cssFolder.Key + "/" + ViewIdentifier + "_#.css"));
}
}
#region private implementation
private string _viewIdentifier = null;
// ViewIdentifier returns a site-unique name for the current control, such as "shared_signinpartial"
// Some security wonks may take issue with exposing folder structure here
// It may be appropriate to obfuscate it with a checksum
private string ViewIdentifier {
get {
if (_viewIdentifier == null) {
_viewIdentifier =
// VirtualPath uniquely identifies the currently rendering View or Partial,
// such as "~/Views/Shared/SignInPartial.cshtml"
Path.GetFileNameWithoutExtension(VirtualPath).
// This "Substring" truncates the ~/Views/ or ~/Areas/ in my build, in others
// but it is probably inappropriate to make this assumption.
// It is certainly possible to have views in the root.
// Substring(8).
// It's assumed all of these bundles will be output to a single folder,
// to keep filesystem write-access minimal, so we flatten them here.
Replace("/", "_").
// The following assumes a typical MS filesystem, preserve-but-ignore case.
// The .NET string recommendations suggest instead using ToUpperInvariant
// for such an operation, but this was just a personal preference.
// My IIS rules typically drop the case on all content served.
// It may be altogether inappropriate to alter,
// although appending the MD5 hash ensure it does no harm on other platforms,
// while still collapsing the cases where multiply-cased aliases are used
ToLowerInvariant();
}
return _viewIdentifier;
}
}
private List<MvcHtmlString> CssResourceLinks {
get { return getContextHtmlStringList("SquishItCssResourceLinks"); }
}
private List<MvcHtmlString> JsResourceLinks {
get { return getContextHtmlStringList("SquishItJsResourceLinks"); }
}
// Note that at the resource render, if no bundles of a specific type (.css or .js)
// have been provided, this performs the unnecessary operation of instanciating a new List<MvcHtmlString>
// and adding it to the HttpContext.Items. This get/set could benefit from some clarification.
private List<MvcHtmlString> getContextHtmlStringList(string itemName) {
IDictionary contextItems = Context.ApplicationInstance.Context.Items;
List<MvcHtmlString> resourceLinks;
if (contextItems.Contains(itemName)) {
resourceLinks = contextItems[itemName] as List<MvcHtmlString>;
}
else {
resourceLinks = new List<MvcHtmlString>();
contextItems.Add(itemName, resourceLinks);
}
return resourceLinks;
}
private string[] FilterFileExtension(string[] filenames, string mustEndWith) {
IEnumerable<string> filtered =
filenames.Where(r => r.EndsWith(mustEndWith, StringComparison.OrdinalIgnoreCase));
return filtered.ToArray();
}
#endregion private implementation
}
PageWithHeaderLayout.cshtml（示例用法）
@{
AddResources(
Links.Assets.Common.Script.GoogleAnalytics_js,
Links.Assets.Common.Style.ProprietaryTheme.jquery_ui_1_8_23_custom_css,
Links.Assets.Common.Style.SiteStandards_css,
Links.Assets.Common.CdnMirror.jquery._1_7_2.jquery_js,
Links.Assets.Common.CdnMirror.jQuery_Validate._2_0_0pre.jquery_validate_120826_js,
Links.Assets.Common.CdnMirror.jqueryui._1_8_23.jquery_ui_min_js,
Links.Assets.Common.JqueryPlugins.templates.jquery_tmpl_min_js,
Links.Assets.Common.JqueryPlugins.jquery_ajaxmanager_js,
Links.Assets.Common.JqueryPlugins.hashchange.jquery_ba_hashchange_min_js
);
}
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>@ViewBag.Title</title>
<meta name="description" content="@ViewBag.Description" />
<meta name="keywords" content="@ViewBag.Keywords" />
<link rel="shortcut icon" href="@Url.Content("~/favicon.ico")" type="image/x-icon" />
<!-- all bundles from all page components are emitted here -->
@ResourceLinks
</head>
<body>
@Html.Partial(MVC.Common.Views.ContextNavigationTree)
<div id="pageContent">
@RenderBody()
</div>
</body>
</html>
不幸的是我写了它，所以它有很多限制。脚本不会重复，它采用简单的方法来描述捆绑包，我最近添加了一个丑陋的 hack 以允许 .less 支持等。
是否有任何现有的解决方案可以做到这一点？
【问题讨论】：
标签： asp.net-mvc bundling-and-minification squishit