private void Minify(string jsPath)
{
string minifiedPath = null;
if (jsPath.EndsWith(".js", StringComparison.OrdinalIgnoreCase) == false)
{
minifiedPath = jsPath + ".min";
}
else
{
minifiedPath = jsPath.Substring(0, jsPath.Length - 3) + ".min.js";
}
var mapPath = jsPath.Replace(".js", ".min.js") + ".map";
StreamWriter mapWriter = null;
V3SourceMap sourceMap = null;
try
{
var settings = new CodeSettings();
//try
//{
//Be aware that the text encoding should be UTF-8 with no Byte-Order Mark (BOM) written at the beginning.
//V3 source map files that include a BOM will not be read by Chrome
mapWriter = new StreamWriter(mapPath, false, new System.Text.UTF8Encoding(false));
sourceMap = new V3SourceMap(mapWriter);
sourceMap.StartPackage(minifiedPath, mapPath);
// the first argument specifies "file" field in map file.
// the second arugment specifies "//# sourceMappingURL=" in the output (minified js)
settings.SymbolsMap = sourceMap;
//}
//catch (Exception ex)
//{
//}
settings.TermSemicolons = true;
Minifier minifier = new Minifier();
minifier.FileName = jsPath;
var content = minifier.MinifyJavaScript(File.ReadAllText(jsPath), settings);
using (StreamWriter sw = new StreamWriter(minifiedPath))
{
sw.Write(content);
}
}
finally
{
if (sourceMap != null)
{
sourceMap.EndPackage();
sourceMap.Dispose();
}
mapWriter?.Dispose();
}
}
/// <summary>
/// Override to end the output of all files processed, this is required if not appending source maps to each file
/// </summary>
public void EndPackage()
{
_wrapped.EndPackage();
//need to dispose the wrapped source map which is what is used to generate the whole thing
_wrapped.Dispose();
//get the created map and base64 it
SourceMapOutput = _mapBuilder.ToString();
}
public void SourceMapForMultipleFiles()
{
var assetBuilder = new StringBuilder();
var assets = new[] { "SourceMapForMultipleFiles1.js", "SourceMapForMultipleFiles2.js", "SourceMapForMultipleFiles3.js" };
var currentPath = AppDomain.CurrentDomain.BaseDirectory;
foreach (var asset in assets)
{
assetBuilder.AppendLine("///#source 1 1 " + asset);
var path = Path.Combine(currentPath, "TestData\\JS\\Input\\SourceMap\\" + asset);
assetBuilder.AppendLine(File.ReadAllText(path));
}
var stringBuilder = new StringBuilder();
using (var textWriter = new StringWriter(stringBuilder))
{
var sourceMap = new V3SourceMap(textWriter);
sourceMap.StartPackage("infile.js", "SourceMapForMultipleFiles.js.map");
var uglifyResult = Uglify.Js(assetBuilder.ToString(), "SourceMapForMultipleFiles.js", new CodeSettings
{
SymbolsMap = sourceMap,
SourceMode = JavaScriptSourceMode.Program,
MinifyCode = true,
OutputMode = OutputMode.SingleLine,
StripDebugStatements = false,
LineTerminator = "\r\n"
});
sourceMap.EndPackage();
sourceMap.Dispose();
var code = uglifyResult.Code;
Assert.AreEqual(File.ReadAllText(Path.Combine(currentPath, "TestData\\JS\\Expected\\SourceMap\\SourceMapForMultipleFiles.js")), code);
var builder = stringBuilder.ToString();
Assert.AreEqual(File.ReadAllText(Path.Combine(currentPath, "TestData\\JS\\Expected\\SourceMap\\SourceMapForMultipleFiles.js.map")), builder);
}
}
private static void MinifyFileWithSourceMap(string file, string minFile, CodeSettings settings, bool isBundle)
{
string mapPath = minFile + ".map";
ProjectHelpers.CheckOutFileFromSourceControl(mapPath);
using (TextWriter writer = new StreamWriter(mapPath, false, new UTF8Encoding(false)))
using (V3SourceMap sourceMap = new V3SourceMap(writer))
{
settings.SymbolsMap = sourceMap;
sourceMap.StartPackage(Path.GetFileName(minFile), Path.GetFileName(mapPath));
// This fails when debugger is attached. Bug raised with Ron Logan
MinifyFile(file, minFile, settings, isBundle);
sourceMap.EndPackage();
if (!isBundle)
{
MarginBase.AddFileToProject(file, mapPath);
}
}
}
private static void MinifyFileWithSourceMap(string file, string minFile, CodeSettings settings, bool isBundle)
{
string mapPath = minFile + ".map";
ProjectHelpers.CheckOutFileFromSourceControl(mapPath);
using (TextWriter writer = new StreamWriter(mapPath, false, new UTF8Encoding(false)))
using (V3SourceMap sourceMap = new V3SourceMap(writer))
{
settings.SymbolsMap = sourceMap;
sourceMap.StartPackage(Path.GetFileName(minFile), Path.GetFileName(mapPath));
// This fails when debugger is attached. Bug raised with Ron Logan
MinifyFile(file, minFile, settings, isBundle);
sourceMap.EndPackage();
if (!isBundle)
{
MarginBase.AddFileToProject(file, mapPath);
}
}
}
public string BuildBundleContent(Bundle bundle, BundleContext context, IEnumerable <BundleFile> files)
{
if (files == null)
{
return(string.Empty);
}
if (context == null)
{
throw new ArgumentNullException("context");
}
if (bundle == null)
{
throw new ArgumentNullException("bundle");
}
// Generates source map using an approach documented here: http://ajaxmin.codeplex.com/discussions/446616
// Get paths and create any directories required
var mapVirtualPath = bundle.Path + ".map";
var sourcePath = HostingEnvironment.MapPath(bundle.Path);
var mapPath = HostingEnvironment.MapPath(mapVirtualPath);
var directoryPath = Path.GetDirectoryName(mapPath);
if (directoryPath == null)
{
throw new InvalidOperationException("directoryPath was invalid.");
}
if (!Directory.Exists(directoryPath))
{
Directory.CreateDirectory(directoryPath);
}
// Concatenate file contents to be minified, including the sourcemap hints
var contentConcated = new StringBuilder();
foreach (var file in files)
{
var filePath = HostingEnvironment.MapPath(file.VirtualFile.VirtualPath);
if (bundleFileType == BundleFileTypes.JavaScript)
{
contentConcated.AppendLine(";///#SOURCE 1 1 " + filePath);
}
contentConcated.AppendLine(file.ApplyTransforms());
}
var contentConcatedString = contentConcated.ToString();
// Try minify (+ source map) using AjaxMin dll
try
{
var contentBuilder = new StringBuilder();
using (var contentWriter = new StringWriter(contentBuilder))
using (var mapWriter = new StreamWriter(mapPath, false, new UTF8Encoding(false)))
using (var sourceMap = new V3SourceMap(mapWriter))
{
sourceMap.StartPackage(sourcePath, mapPath);
var settings = new CodeSettings()
{
EvalTreatment = EvalTreatment.MakeImmediateSafe,
PreserveImportantComments = false,
SymbolsMap = sourceMap,
TermSemicolons = true
};
var minifier = new Minifier();
string contentMinified;
switch (bundleFileType)
{
case BundleFileTypes.JavaScript:
contentMinified = minifier.MinifyJavaScript(contentConcatedString, settings);
break;
case BundleFileTypes.StyleSheet:
var cssSettings = new CssSettings
{
TermSemicolons = true
};
contentMinified = minifier.MinifyStyleSheet(contentConcatedString, cssSettings, settings);
break;
default:
throw new ArgumentOutOfRangeException("Unrecognised BundleFileTypes enum value. Could not find minifier method to handle.");
}
if (minifier.ErrorList.Count > 0)
{
return(GenerateMinifierErrorsContent(contentConcatedString, minifier));
}
contentWriter.Write(contentMinified);
sourceMap.EndPackage();
sourceMap.EndFile(contentWriter, "\r\n");
}
return(contentBuilder.ToString());
}
catch (Exception ex)
{
Trace.TraceWarning("An exception occurred trying to build bundle contents for bundle with virtual path: " + bundle.Path + ". See Exception details.", ex, typeof(AjaxMinBundleBuilder));
return(GenerateGenericErrorsContent(contentConcatedString));
}
}
public override IEnumerable<PvcCore.PvcStream> Execute(IEnumerable<PvcCore.PvcStream> inputStreams)
{
var resultStreams = new List<PvcStream>();
SwitchParser switchParser = null;
if (!String.IsNullOrEmpty(this.commandLineSwitches))
{
switchParser = new SwitchParser();
switchParser.Parse(this.commandLineSwitches);
}
foreach (var inputStream in inputStreams)
{
var dirName = Path.GetDirectoryName(inputStream.StreamName);
var fileName = Path.GetFileNameWithoutExtension(inputStream.StreamName) + ".min" + Path.GetExtension(inputStream.StreamName);
var resultName = Path.Combine(dirName, fileName);
var fileContent = new StreamReader(inputStream).ReadToEnd();
var minifier = new Minifier();
var sourceStream = new MemoryStream();
var outputWriter = new StreamWriter(sourceStream);
if (inputStream.StreamName.EndsWith(".js"))
{
// Currently AjaxMin only supports JS source maps
if (this.generateSourceMaps)
{
var resultMapName = resultName + ".map";
var utf8 = new UTF8Encoding(false);
var mapStream = new MemoryStream();
var mapWriter = new SourcemapStreamWriter(mapStream, utf8);
var sourceMap = new V3SourceMap(mapWriter);
if (sourceMap != null)
{
if (switchParser == null)
{
switchParser = new SwitchParser();
}
switchParser.JSSettings.SymbolsMap = sourceMap;
switchParser.JSSettings.TermSemicolons = true;
sourceMap.StartPackage(resultName, resultMapName);
outputWriter.Write(minifier.MinifyJavaScript(fileContent, switchParser.JSSettings));
sourceMap.EndPackage();
sourceMap.EndFile(outputWriter, "\r\n");
sourceMap.Dispose();
mapWriter.Flush();
resultStreams.Add(new PvcStream(() => mapStream).As(resultMapName));
}
}
else
{
CodeSettings settings = new CodeSettings();
if (switchParser != null) settings = switchParser.JSSettings;
outputWriter.Write(minifier.MinifyJavaScript(fileContent, settings));
}
}
else
{
CssSettings settings = new CssSettings();
if (switchParser != null) settings = switchParser.CssSettings;
outputWriter.Write(minifier.MinifyStyleSheet(fileContent, settings));
}
foreach (var error in minifier.ErrorList)
{
Console.Error.WriteLine(error.ToString());
}
outputWriter.Flush();
resultStreams.Add(new PvcStream(() => sourceStream).As(resultName));
}
return resultStreams;
}
/// <summary>
/// Generate source map then minify file
/// </summary>
/// <param name="file"></param>
/// <param name="minFile"></param>
/// <param name="settings"></param>
/// <param name="isBundle"></param>
private static void MinifyFileWithSourceMap(string file, string minFile, CodeSettings settings, bool isBundle)
{
var fileName = minFile + ".map";
using (var writer = new StreamWriter(fileName, false, new UTF8Encoding(false)))
{
using (var map = new V3SourceMap(writer))
{
settings.SymbolsMap = map;
map.StartPackage(Path.GetFileName(minFile), Path.GetFileName(fileName));
MinifyFile(file, minFile, settings, true, isBundle);
map.EndPackage();
}
}
Console.WriteLine("Source map generated: " + Path.GetFileName(fileName));
}
public override IEnumerable <PvcCore.PvcStream> Execute(IEnumerable <PvcCore.PvcStream> inputStreams)
{
var resultStreams = new List <PvcStream>();
SwitchParser switchParser = null;
if (!String.IsNullOrEmpty(this.commandLineSwitches))
{
switchParser = new SwitchParser();
switchParser.Parse(this.commandLineSwitches);
}
foreach (var inputStream in inputStreams)
{
var dirName = Path.GetDirectoryName(inputStream.StreamName);
var fileName = Path.GetFileNameWithoutExtension(inputStream.StreamName) + ".min" + Path.GetExtension(inputStream.StreamName);
var resultName = Path.Combine(dirName, fileName);
var fileContent = new StreamReader(inputStream).ReadToEnd();
var minifier = new Minifier();
var sourceStream = new MemoryStream();
var outputWriter = new StreamWriter(sourceStream);
if (inputStream.StreamName.EndsWith(".js"))
{
// Currently AjaxMin only supports JS source maps
if (this.generateSourceMaps)
{
var resultMapName = resultName + ".map";
var utf8 = new UTF8Encoding(false);
var mapStream = new MemoryStream();
var mapWriter = new SourcemapStreamWriter(mapStream, utf8);
var sourceMap = new V3SourceMap(mapWriter);
if (sourceMap != null)
{
if (switchParser == null)
{
switchParser = new SwitchParser();
}
switchParser.JSSettings.SymbolsMap = sourceMap;
switchParser.JSSettings.TermSemicolons = true;
sourceMap.StartPackage(resultName, resultMapName);
outputWriter.Write(minifier.MinifyJavaScript(fileContent, switchParser.JSSettings));
sourceMap.EndPackage();
sourceMap.EndFile(outputWriter, "\r\n");
sourceMap.Dispose();
mapWriter.Flush();
resultStreams.Add(new PvcStream(() => mapStream).As(resultMapName));
}
}
else
{
CodeSettings settings = new CodeSettings();
if (switchParser != null)
{
settings = switchParser.JSSettings;
}
outputWriter.Write(minifier.MinifyJavaScript(fileContent, settings));
}
}
else
{
CssSettings settings = new CssSettings();
if (switchParser != null)
{
settings = switchParser.CssSettings;
}
outputWriter.Write(minifier.MinifyStyleSheet(fileContent, settings));
}
foreach (var error in minifier.ErrorList)
{
Console.Error.WriteLine(error.ToString());
}
outputWriter.Flush();
resultStreams.Add(new PvcStream(() => sourceStream).As(resultName));
}
return(resultStreams);
}
