aspnetcore/src/PageGenerator/Program.cs

119 lines
4.7 KiB
C#

// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Microsoft.AspNet.Razor;
using Microsoft.Net.Runtime;
namespace PageGenerator
{
public class Program
{
private readonly ILibraryManager _libraryManager;
public Program(ILibraryManager libraryManager)
{
_libraryManager = libraryManager;
}
public void Main(string[] args)
{
var diagnosticsLibInfo = _libraryManager.GetLibraryInformation("Microsoft.AspNet.Diagnostics");
var viewBasePath = Path.Combine(Path.GetDirectoryName(diagnosticsLibInfo.Path), "Views");
Console.WriteLine("Generating code files for views in {0}", viewBasePath);
Console.WriteLine();
var cshtmlFiles = GetCshtmlFiles(viewBasePath);
var fileCount = 0;
foreach (var fileName in cshtmlFiles)
{
Console.WriteLine(" Generating code file for view {0}...", Path.GetFileName(fileName));
GenerateCodeFile(fileName);
Console.WriteLine(" Done!");
fileCount++;
}
Console.WriteLine();
Console.WriteLine("{0} files successfully generated.", fileCount);
Console.WriteLine();
Console.Write("Press enter to close application...");
Console.ReadLine();
}
private static IEnumerable<string> GetCshtmlFiles(string path)
{
if (!Directory.Exists(path))
{
throw new ArgumentException("path");
}
return Directory.EnumerateFiles(path, "*.cshtml");
}
private static void GenerateCodeFile(string cshtmlFilePath)
{
var basePath = Path.GetDirectoryName(cshtmlFilePath);
var fileName = Path.GetFileName(cshtmlFilePath);
var fileNameNoExtension = Path.GetFileNameWithoutExtension(fileName);
var codeLang = new CSharpRazorCodeLanguage();
var host = new RazorEngineHost(codeLang);
host.DefaultBaseClass = "Microsoft.AspNet.Diagnostics.Views.BaseView";
var engine = new RazorTemplateEngine(host);
using (var fileStream = File.OpenText(cshtmlFilePath))
{
var code = engine.GenerateCode(
input: fileStream,
className: fileNameNoExtension,
rootNamespace: "Microsoft.AspNet.Diagnostics.Views",
sourceFileName: fileName);
var source = code.GeneratedCode;
var startIndex = 0;
while (startIndex < source.Length)
{
var startMatch = @"<%$ include: ";
var endMatch = @" %>";
startIndex = source.IndexOf(startMatch, startIndex);
if (startIndex == -1)
{
break;
}
var endIndex = source.IndexOf(endMatch, startIndex);
if (endIndex == -1)
{
break;
}
var includeFileName = source.Substring(startIndex + startMatch.Length, endIndex - (startIndex + startMatch.Length));
includeFileName = SanitizeFileName(includeFileName);
Console.WriteLine(" Inlining file {0}", includeFileName);
var replacement = File.ReadAllText(Path.Combine(basePath, includeFileName)).Replace("\"", "\\\"").Replace("\r\n", "\\r\\n");
source = source.Substring(0, startIndex) + replacement + source.Substring(endIndex + endMatch.Length);
startIndex = startIndex + replacement.Length;
}
File.WriteAllText(Path.Combine(basePath, string.Format("{0}.cs", fileNameNoExtension)), source);
}
}
private static string SanitizeFileName(string fileName)
{
// The Razor generated code sometimes splits strings across multiple lines
// which can hit the include file name, so we need to strip out the non-filename chars.
//ErrorPage.j" +
//"s
var invalidChars = new List<char>(Path.GetInvalidFileNameChars());
invalidChars.Add('+');
invalidChars.Add(' ');
return string.Join(string.Empty, fileName.Where(c => !invalidChars.Contains(c)).ToArray());
}
}
}