aspnetcore/build/Resources.tt

<#@ template debug="true" hostspecific="true" language="C#" #>
<#@ assembly name="System.Core" #>
<#@ assembly name="System.Windows.Forms" #>
<#@ assembly name="Microsoft.VisualStudio.Shell.Interop.8.0" #>
<#@ assembly name="EnvDTE" #>
<#@ assembly name="EnvDTE80" #>
<#@ import namespace="System" #>
<#@ import namespace="System.Collections" #>
<#@ import namespace="System.Collections.Generic" #>
<#@ import namespace="System.IO" #>
<#@ import namespace="System.Linq" #>
<#@ import namespace="System.Resources" #>
<#@ import namespace="System.Text" #>
<#@ import namespace="System.Text.RegularExpressions" #>
<#@ import namespace="Microsoft.VisualStudio.Shell.Interop" #>
<#@ import namespace="EnvDTE" #>
<#@ import namespace="EnvDTE80" #>

<#
  var hostServiceProvider = (IServiceProvider)Host;
  var dte = (EnvDTE.DTE)hostServiceProvider.GetService(typeof(EnvDTE.DTE));
  var templateProjectItem = dte.Solution.FindProjectItem(Host.TemplateFile);

  var projectDirectory = Path.GetDirectoryName(templateProjectItem.ContainingProject.FullName);
  var ttDirectory = Path.Combine(projectDirectory, "Properties");
  var projectName = Path.GetFileName(projectDirectory.TrimEnd('/'));
  
  foreach (var resxFile in Directory.EnumerateFiles(projectDirectory, "*.resx", SearchOption.AllDirectories))
  {
    var fileName = Path.GetFileNameWithoutExtension(resxFile);
    var parameterMatcher = new Regex(@"\{(\d)\}");
    var resourceStrings = new List<ResourceData>();

    using (var resxReader = new ResXResourceReader(resxFile))
    {
        resxReader.UseResXDataNodes = true;

        foreach (DictionaryEntry entry in resxReader)
        {
            var node = (ResXDataNode)entry.Value;
            var value = (string)node.GetValue((System.ComponentModel.Design.ITypeResolutionService)null);

            var matchedArgs
                = parameterMatcher.Matches(value)
                    .Cast<Match>()
                    .Select(m => Convert.ToInt32(m.Groups[1].Value))
                    .ToArray();

            resourceStrings.Add(new ResourceData {
              Name = node.Name,
              Value = value,
              ArgsCount = matchedArgs.Any() ? matchedArgs.Max() + 1 : 0
            });
        }
    }
    GenerationEnvironment.AppendFormat(
@"// <auto-generated />

namespace {0}
{{
    using System.Globalization;
    using System.Reflection;
    using System.Resources;

    internal static class {1}
    {{
        private static readonly ResourceManager _resourceManager
            = new ResourceManager(""{0}.{1}"", typeof({1}).GetTypeInfo().Assembly);
", projectName, fileName);
  foreach (var resourceString in resourceStrings)
  {
    GenerationEnvironment.AppendLine();
    GenerationEnvironment.AppendFormat(@"        /// <summary>").AppendLine();
    foreach (var line in resourceString.Value.Split(new[] { Environment.NewLine }, StringSplitOptions.None))
    {
      GenerationEnvironment.AppendFormat("        /// {0}", line.Replace("<", "&lt;").Replace(">", "&gt;"))
                           .AppendLine();
    }
    GenerationEnvironment.AppendFormat(
@"        /// </summary>
        internal static string {0}{1}
        {{
", resourceString.Name, resourceString.ArgsCount > 0 ? resourceString.ParamsArray : string.Empty);
    if (resourceString.ArgsCount == 0)
    {
      GenerationEnvironment.AppendFormat(
@"            get {{ return GetString(""{0}""); }}", resourceString.Name);
    }
    else
    {
      GenerationEnvironment.AppendFormat(
@"            return string.Format(CultureInfo.CurrentCulture, GetString(""{0}""), {1});", resourceString.Name, resourceString.ArgsArray);
    }
    GenerationEnvironment.AppendLine().Append(
@"        }").AppendLine();
  }
  GenerationEnvironment.Append(@"
        private static string GetString(string name)
        {
            string value = _resourceManager.GetString(name);
            System.Diagnostics.Debug.Assert(value != null);
            return value;
        }
    }
}
");
#>
<#
  string outputPath = Path.Combine(ttDirectory, fileName + ".Designer.cs");
  bool fileExists = File.Exists(outputPath);
  File.WriteAllText(outputPath, GenerationEnvironment.ToString());
  GenerationEnvironment.Length = 0;
  if (!fileExists) {
    
    templateProjectItem.ProjectItems.AddFromFile(outputPath);
  }
}
#>
<#+
  private class ResourceData
  {
    public string Name { get; set; }
    public string Value { get; set; }
    public int ArgsCount { get; set; }

    public string ArgsArray
    {
      get { return GenerateArgs("p"); }
    }
    
    public string ParamsArray
    {
      get { return "(" + GenerateArgs("object p") + ")"; }
    }
    
    private string GenerateArgs(string template)
    {
      return string.Join(", ", Enumerable.Range(0, ArgsCount).Select(i => template + i));
    }
  }
#>