/// <summary>
/// Translates a code of assets written on Sass or SCSS to CSS-code
/// </summary>
/// <param name="assets">Set of assets with code written on Sass or SCSS</param>
/// <returns>Set of assets with translated code</returns>
public override IList<IAsset> Translate(IList<IAsset> assets)
{
if (assets == null)
{
throw new ArgumentException(CoreStrings.Common_ValueIsEmpty, "assets");
}
if (assets.Count == 0)
{
return assets;
}
var assetsToProcessing = assets.Where(a => a.AssetTypeCode == Constants.AssetTypeCode.Sass
|| a.AssetTypeCode == Constants.AssetTypeCode.Scss).ToList();
if (assetsToProcessing.Count == 0)
{
return assets;
}
lock (_translationSynchronizer)
{
bool enableNativeMinification = NativeMinificationEnabled;
using (var sassCompiler = new SassCompiler(_fileManager))
{
foreach (var asset in assetsToProcessing)
{
InnerTranslate(asset, sassCompiler, enableNativeMinification);
}
}
}
return assets;
}
private void InnerTranslate(IAsset asset, SassCompiler sassCompiler, bool enableNativeMinification)
{
string assetTypeName = (asset.AssetTypeCode == Constants.AssetTypeCode.Sass) ? "Sass" : "SCSS";
string newContent;
string assetUrl = asset.Url;
IList<string> dependencies;
CompilationOptions options = CreateCompilationOptions(asset.AssetTypeCode, enableNativeMinification);
_fileManager.CurrentDirectoryName = UrlHelpers.GetDirectoryName(assetUrl);
try
{
CompilationResult result = sassCompiler.Compile(asset.Content, assetUrl, options: options);
newContent = result.CompiledContent;
dependencies = result.IncludedFilePaths;
}
catch (FileNotFoundException)
{
throw;
}
catch (SassСompilationException e)
{
throw new AssetTranslationException(
string.Format(CoreStrings.Translators_TranslationSyntaxError,
assetTypeName, OUTPUT_CODE_TYPE, assetUrl, SassErrorHelpers.Format(e)));
}
catch (Exception e)
{
throw new AssetTranslationException(
string.Format(CoreStrings.Translators_TranslationFailed,
assetTypeName, OUTPUT_CODE_TYPE, assetUrl, e.Message), e);
}
finally
{
_fileManager.CurrentDirectoryName = null;
}
asset.Content = newContent;
asset.Minified = enableNativeMinification;
asset.RelativePathsResolved = false;
asset.VirtualPathDependencies = dependencies;
}
/// <summary>
/// Translates a code of asset written on Sass or SCSS to CSS-code
/// </summary>
/// <param name="asset">Asset with code written on Sass or SCSS</param>
/// <returns>Asset with translated code</returns>
public override IAsset Translate(IAsset asset)
{
if (asset == null)
{
throw new ArgumentException(Strings.Common_ValueIsEmpty, "asset");
}
lock (_translationSynchronizer)
{
bool enableNativeMinification = NativeMinificationEnabled;
using (var sassCompiler = new SassCompiler(_fileManager))
{
InnerTranslate(asset, sassCompiler, enableNativeMinification);
}
}
return asset;
}