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This sassy commit is all the rage this summer.
Solves Code52#192 - introduces Sass for CSS generation. Uses Libsassnet to provide the Sassyness. Switches out ILMerge for Fody/Costura. When handling unmanaged assemblies, this is the best solution. This required some modifications to how MEF was used. It uses a very specific version of Fody/Costura because of issues with VS15, I think. Please don't update it.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,88 @@ | ||
| using System.Collections.Generic; | ||
| using System.ComponentModel.Composition; | ||
| using System.IO; | ||
| using System.IO.Abstractions; | ||
| using System.Linq; | ||
| using HtmlAgilityPack; | ||
| using LibSassNet; | ||
| using Pretzel.Logic.Extensibility; | ||
| using Pretzel.Logic.Templating.Context; | ||
|
|
||
| namespace Pretzel.Logic.Minification | ||
| { | ||
| public class SassTransform : ITransform | ||
| { | ||
| private static readonly string[] ExternalProtocols = { "http", "https", "//" }; | ||
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|
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| #pragma warning disable 0649 | ||
| private readonly IFileSystem fileSystem; | ||
| #pragma warning restore 0649 | ||
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|
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| [ImportingConstructor] | ||
| public SassTransform(IFileSystem fileSystem) | ||
| { | ||
| this.fileSystem = fileSystem; | ||
| } | ||
|
|
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| private string filePath = string.Empty; | ||
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| private readonly ISassCompiler compiler = new SassCompiler(); | ||
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| public void Transform(SiteContext siteContext) | ||
| { | ||
| var shouldCompile = new List<Page>(); | ||
| //Process to see if the site has a CSS file that doesn't exist, and should be created from LESS files. | ||
| //This is "smarter" than just compiling all Less files, which will crash if they're part of a larger Less project | ||
| //ie, one file pulls in imports, individually they don't know about each other but use variables | ||
| foreach (var file in siteContext.Pages.Where(p => p.OutputFile.EndsWith(".html") && fileSystem.File.Exists(p.OutputFile))) | ||
| { | ||
| var doc = new HtmlDocument(); | ||
| var fileContents = fileSystem.File.ReadAllText(file.OutputFile); | ||
| doc.LoadHtml(fileContents); | ||
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|
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| var nodes = doc.DocumentNode.SelectNodes("/html/head/link[@rel='stylesheet']"); | ||
| if (nodes != null) | ||
| foreach (HtmlNode link in nodes) | ||
| { | ||
| var cssfile = link.Attributes["href"].Value; | ||
|
|
||
| // If the file is not local, ignore it | ||
| var matchingIgnoreProtocol = ExternalProtocols.FirstOrDefault(cssfile.StartsWith); | ||
| if (matchingIgnoreProtocol != null) | ||
| continue; | ||
|
|
||
| //If the file exists, ignore it | ||
| if (fileSystem.File.Exists(Path.Combine(siteContext.OutputFolder, cssfile))) | ||
| continue; | ||
|
|
||
| //If there is a CSS file that matches the name, ignore, could be another issue | ||
| if (siteContext.Pages.Any(p => p.OutputFile.Contains(cssfile))) | ||
| continue; | ||
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| var n = cssfile.Replace(".css", ".scss"); | ||
| n = n.Replace('/', '\\'); | ||
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| var cssPageToCompile = siteContext.Pages.FirstOrDefault(f => f.OutputFile.Contains(n)); | ||
| if (cssPageToCompile != null && !shouldCompile.Contains(cssPageToCompile)) | ||
| { | ||
| shouldCompile.Add(cssPageToCompile); | ||
| } | ||
| } | ||
| } | ||
|
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| foreach (var less in shouldCompile) | ||
| { | ||
| filePath = less.OutputFile; | ||
| fileSystem.File.WriteAllText(less.OutputFile.Replace(".scss", ".css"), ProcessCss(siteContext, less.Filepath)); | ||
| fileSystem.File.Delete(less.OutputFile); | ||
| } | ||
| } | ||
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| public string ProcessCss(SiteContext siteContext, string file) | ||
| { | ||
| var x = compiler.CompileFile(file).CSS; | ||
| return x; | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <Weavers> | ||
| <Costura> | ||
| <Unmanaged32Assemblies> | ||
| LibSass.x86 | ||
| </Unmanaged32Assemblies> | ||
| </Costura> | ||
|
|
||
| </Weavers> |
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