mcs/tools/xbuild/SolutionParser.cs

   1 //
   2 // SolutionParser.cs: Generates a project file from a solution file.
   3 //
   4 // Author:
   5 //   Jonathan Chambers (joncham@gmail.com)
   6 //   Ankit Jain <jankit@novell.com>
   7 //   Lluis Sanchez Gual <lluis@novell.com>
   8 //
   9 // (C) 2009 Jonathan Chambers
  10 // Copyright 2008, 2009 Novell, Inc (http://www.novell.com)
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30
  31 #if NET_2_0
  32
  33 using System;
  34 using System.Collections.Generic;
  35 using System.Linq;
  36 using System.Text;
  37 using System.Text.RegularExpressions;
  38 using System.IO;
  39 using Microsoft.Build.BuildEngine;
  40
  41 namespace Mono.XBuild.CommandLine {
  42         class ProjectInfo {
  43                 public string Name;
  44                 public string FileName;
  45                 public Guid Guid;
  46
  47                 public ProjectInfo (string name, string fileName)
  48                 {
  49                         Name = name;
  50                         FileName = fileName;
  51                 }
  52
  53                 public Dictionary<TargetInfo, TargetInfo> TargetMap = new Dictionary<TargetInfo, TargetInfo> ();
  54                 public Dictionary<Guid, ProjectInfo> Dependencies = new Dictionary<Guid, ProjectInfo> ();
  55                 public Dictionary<string, ProjectSection> ProjectSections = new Dictionary<string, ProjectSection> ();
  56                 public List<string> AspNetConfigurations = new List<string> ();
  57         }
  58
  59         class ProjectSection {
  60                 public string Name;
  61                 public Dictionary<string, string> Properties = new Dictionary<string, string> ();
  62
  63                 public ProjectSection (string name)
  64                 {
  65                         Name = name;
  66                 }
  67         }
  68
  69         struct TargetInfo {
  70                 public string Configuration;
  71                 public string Platform;
  72                 public bool Build;
  73
  74                 public TargetInfo (string configuration, string platform)
  75                         : this (configuration, platform, false)
  76                 {
  77                 }
  78
  79                 public TargetInfo (string configuration, string platform, bool build)
  80                 {
  81                         Configuration = configuration;
  82                         Platform = platform;
  83                         Build = build;
  84                 }
  85         }
  86
  87
  88         internal delegate void RaiseWarningHandler (int errorNumber, string message);
  89
  90         class SolutionParser {
  91                 static string[] buildTargets = new string[] { "Build", "Clean", "Rebuild", "Publish" };
  92
  93                 static string guidExpression = "{[A-Fa-f0-9]{8}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{12}}";
  94
  95                 static Regex slnVersionRegex = new Regex (@"Microsoft Visual Studio Solution File, Format Version (\d?\d.\d\d)");
  96                 static Regex projectRegex = new Regex ("Project\\(\"(" + guidExpression + ")\"\\) = \"(.*?)\", \"(.*?)\", \"(" + guidExpression + ")\"(\\s*?)((\\s*?)ProjectSection\\((.*?)\\) = (.*?)EndProjectSection(\\s*?))*(\\s*?)(EndProject)?", RegexOptions.Singleline);
  97                 static Regex projectDependenciesRegex = new Regex ("ProjectSection\\((.*?)\\) = \\w*(.*?)EndProjectSection", RegexOptions.Singleline);
  98                 static Regex projectDependencyRegex = new Regex ("\\s*(" + guidExpression + ") = (" + guidExpression + ")");
  99                 static Regex projectSectionPropertiesRegex = new Regex ("\\s*(?<name>.*) = \"(?<value>.*)\"");
 100
 101                 static Regex globalRegex = new Regex ("Global(.*)EndGlobal", RegexOptions.Singleline);
 102                 static Regex globalSectionRegex = new Regex ("GlobalSection\\((.*?)\\) = \\w*(.*?)EndGlobalSection", RegexOptions.Singleline);
 103
 104                 static Regex solutionConfigurationRegex = new Regex ("\\s*(.*?)\\|(.*?) = (.*?)\\|(.+)");
 105                 static Regex projectConfigurationActiveCfgRegex = new Regex ("\\s*(" + guidExpression + ")\\.(.+?)\\|(.+?)\\.ActiveCfg = (.+?)\\|(.+)");
 106                 static Regex projectConfigurationBuildRegex = new Regex ("\\s*(" + guidExpression + ")\\.(.*?)\\|(.*?)\\.Build\\.0 = (.*?)\\|(.+)");
 107
 108                 static string solutionFolderGuid = "{2150E333-8FDC-42A3-9474-1A3956D46DE8}";
 109                 static string vcprojGuid = "{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}";
 110                 static string websiteProjectGuid = "{E24C65DC-7377-472B-9ABA-BC803B73C61A}";
 111
 112                 RaiseWarningHandler RaiseWarning;
 113
 114                 public void ParseSolution (string file, Project p, RaiseWarningHandler RaiseWarning)
 115                 {
 116                         this.RaiseWarning = RaiseWarning;
 117                         AddGeneralSettings (file, p);
 118
 119                         StreamReader reader = new StreamReader (file);
 120                         string slnVersion = GetSlnFileVersion (reader);
 121                         if (slnVersion == "11.00")
 122                                 p.DefaultToolsVersion = "4.0";
 123                         else if (slnVersion == "10.00")
 124                                 p.DefaultToolsVersion = "3.5";
 125                         else
 126                                 p.DefaultToolsVersion = "2.0";
 127
 128                         string line = reader.ReadToEnd ();
 129                         line = line.Replace ("\r\n", "\n");
 130                         string solutionDir = Path.GetDirectoryName (file);
 131
 132                         List<TargetInfo> solutionTargets = new List<TargetInfo> ();
 133                         Dictionary<Guid, ProjectInfo> projectInfos = new Dictionary<Guid, ProjectInfo> ();
 134                         Dictionary<Guid, ProjectInfo> websiteProjectInfos = new Dictionary<Guid, ProjectInfo> ();
 135                         List<ProjectInfo>[] infosByLevel = null;
 136                         Dictionary<Guid, ProjectInfo> unsupportedProjectInfos = new Dictionary<Guid, ProjectInfo> ();
 137
 138                         Match m = projectRegex.Match (line);
 139                         while (m.Success) {
 140                                 ProjectInfo projectInfo = new ProjectInfo (m.Groups[2].Value,
 141                                                                 Path.GetFullPath (Path.Combine (solutionDir,
 142                                                                         m.Groups [3].Value.Replace ('\\', Path.DirectorySeparatorChar))));
 143                                 if (String.Compare (m.Groups [1].Value, solutionFolderGuid,
 144                                                 StringComparison.InvariantCultureIgnoreCase) == 0) {
 145                                         // Ignore solution folders
 146                                         m = m.NextMatch ();
 147                                         continue;
 148                                 }
 149
 150                                 projectInfo.Guid = new Guid (m.Groups [4].Value);
 151
 152                                 if (String.Compare (m.Groups [1].Value, vcprojGuid,
 153                                                 StringComparison.InvariantCultureIgnoreCase) == 0) {
 154                                         // Ignore vcproj
 155                                         RaiseWarning (0, string.Format("Ignoring vcproj '{0}'.", projectInfo.Name));
 156
 157                                         unsupportedProjectInfos [projectInfo.Guid] = projectInfo;
 158                                         m = m.NextMatch ();
 159                                         continue;
 160                                 }
 161
 162                                 if (String.Compare (m.Groups [1].Value, websiteProjectGuid,
 163                                                 StringComparison.InvariantCultureIgnoreCase) == 0)
 164                                         websiteProjectInfos.Add (new Guid (m.Groups[4].Value), projectInfo);
 165                                 else
 166                                         projectInfos.Add (projectInfo.Guid, projectInfo);
 167
 168                                 Match projectSectionMatch = projectDependenciesRegex.Match (m.Groups[6].Value);
 169                                 while (projectSectionMatch.Success) {
 170                                         string section_name = projectSectionMatch.Groups [1].Value;
 171                                         if (String.Compare (section_name, "ProjectDependencies") == 0) {
 172                                                 Match projectDependencyMatch = projectDependencyRegex.Match (projectSectionMatch.Value);
 173                                                 while (projectDependencyMatch.Success) {
 174                                                         // we might not have projectInfo available right now, so
 175                                                         // set it to null, and fill it in later
 176                                                         projectInfo.Dependencies [new Guid (projectDependencyMatch.Groups[1].Value)] = null;
 177                                                         projectDependencyMatch = projectDependencyMatch.NextMatch ();
 178                                                 }
 179                                         } else {
 180                                                 ProjectSection section = new ProjectSection (section_name);
 181                                                 Match propertiesMatch = projectSectionPropertiesRegex.Match (
 182                                                                         projectSectionMatch.Groups [2].Value);
 183                                                 while (propertiesMatch.Success) {
 184                                                         section.Properties [propertiesMatch.Groups ["name"].Value] =
 185                                                                 propertiesMatch.Groups ["value"].Value;
 186
 187                                                         propertiesMatch = propertiesMatch.NextMatch ();
 188                                                 }
 189
 190                                                 projectInfo.ProjectSections [section_name] = section;
 191                                         }
 192                                         projectSectionMatch = projectSectionMatch.NextMatch ();
 193                                 }
 194                                 m = m.NextMatch ();
 195                         }
 196
 197                         foreach (ProjectInfo projectInfo in projectInfos.Values) {
 198                                 string filename = projectInfo.FileName;
 199                                 string projectDir = Path.GetDirectoryName (filename);
 200
 201                                 if (!File.Exists (filename)) {
 202                                         RaiseWarning (0, String.Format ("Project file {0} referenced in the solution file, " +
 203                                                                 "not found. Ignoring.", filename));
 204                                         continue;
 205                                 }
 206
 207                                 Project currentProject = p.ParentEngine.CreateNewProject ();
 208                                 try {
 209                                         currentProject.Load (filename, ProjectLoadSettings.IgnoreMissingImports);
 210                                 } catch (InvalidProjectFileException e) {
 211                                         RaiseWarning (0, e.Message);
 212                                         continue;
 213                                 }
 214
 215                                 foreach (BuildItem bi in currentProject.GetEvaluatedItemsByName ("ProjectReference")) {
 216                                         ProjectInfo info = null;
 217                                         string projectReferenceGuid = bi.GetEvaluatedMetadata ("Project");
 218                                         bool hasGuid = !String.IsNullOrEmpty (projectReferenceGuid);
 219
 220                                         // try to resolve the ProjectReference by GUID
 221                                         // and fallback to project filename
 222
 223                                         if (hasGuid) {
 224                                                 Guid guid = new Guid (projectReferenceGuid);
 225                                                 projectInfos.TryGetValue (guid, out info);
 226                                                 if (info == null && unsupportedProjectInfos.TryGetValue (guid, out info)) {
 227                                                         RaiseWarning (0, String.Format (
 228                                                                         "{0}: ProjectReference '{1}' is of an unsupported type. Ignoring.",
 229                                                                         filename, bi.Include));
 230                                                         continue;
 231                                                 }
 232                                         }
 233
 234                                         if (info == null || !hasGuid) {
 235                                                 // Project not found by guid or guid not available
 236                                                 // Try to find by project file
 237
 238                                                 string fullpath = Path.GetFullPath (Path.Combine (projectDir, bi.Include.Replace ('\\', Path.DirectorySeparatorChar)));
 239                                                 info = projectInfos.Values.FirstOrDefault (pi => pi.FileName == fullpath);
 240
 241                                                 if (info == null) {
 242                                                         if (unsupportedProjectInfos.Values.Any (pi => pi.FileName == fullpath))
 243                                                                 RaiseWarning (0, String.Format (
 244                                                                                 "{0}: ProjectReference '{1}' is of an unsupported type. Ignoring.",
 245                                                                                 filename, bi.Include));
 246                                                         else
 247                                                                 RaiseWarning (0, String.Format (
 248                                                                                 "{0}: ProjectReference '{1}' not found, neither by guid '{2}' nor by project file name '{3}'.",
 249                                                                                 filename, bi.Include, projectReferenceGuid.Replace ("{", "").Replace ("}", ""), fullpath));
 250                                                 }
 251
 252                                         }
 253
 254                                         if (info != null)
 255                                                 projectInfo.Dependencies [info.Guid] = info;
 256                                 }
 257                         }
 258
 259                         // fill in the project info for deps found in the .sln file
 260                         foreach (ProjectInfo projectInfo in projectInfos.Values) {
 261                                 List<Guid> missingInfos = new List<Guid> ();
 262                                 foreach (KeyValuePair<Guid, ProjectInfo> dependency in projectInfo.Dependencies) {
 263                                         if (dependency.Value == null)
 264                                                 missingInfos.Add (dependency.Key);
 265                                 }
 266
 267                                 foreach (Guid guid in missingInfos) {
 268                                         ProjectInfo info;
 269                                         if (projectInfos.TryGetValue (guid, out info))
 270                                                 projectInfo.Dependencies [guid] = info;
 271                                         else
 272                                                 projectInfo.Dependencies.Remove (guid);
 273                                 }
 274                         }
 275
 276                         Match globalMatch = globalRegex.Match (line);
 277                         Match globalSectionMatch = globalSectionRegex.Match (globalMatch.Groups[1].Value);
 278                         while (globalSectionMatch.Success) {
 279                                 string sectionType = globalSectionMatch.Groups[1].Value;
 280                                 switch (sectionType) {
 281                                         case "SolutionConfigurationPlatforms":
 282                                                 ParseSolutionConfigurationPlatforms (globalSectionMatch.Groups[2].Value, solutionTargets);
 283                                                 break;
 284                                         case "ProjectConfigurationPlatforms":
 285                                                 ParseProjectConfigurationPlatforms (globalSectionMatch.Groups[2].Value,
 286                                                                 projectInfos, websiteProjectInfos);
 287                                                 break;
 288                                         case "SolutionProperties":
 289                                                 ParseSolutionProperties (globalSectionMatch.Groups[2].Value);
 290                                                 break;
 291                                         case "NestedProjects":
 292                                                 break;
 293                                         case "MonoDevelopProperties":
 294                                                 break;
 295                                         default:
 296                                                 RaiseWarning (0, string.Format("Don't know how to handle GlobalSection {0}, Ignoring.", sectionType));
 297                                                 break;
 298                                 }
 299                                 globalSectionMatch = globalSectionMatch.NextMatch ();
 300                         }
 301
 302                         int num_levels = AddBuildLevels (p, solutionTargets, projectInfos, ref infosByLevel);
 303
 304                         AddCurrentSolutionConfigurationContents (p, solutionTargets, projectInfos, websiteProjectInfos);
 305                         AddWebsiteProperties (p, websiteProjectInfos, projectInfos);
 306                         AddValidateSolutionConfiguration (p);
 307
 308                         AddGetFrameworkPathTarget (p);
 309                         AddWebsiteTargets (p, websiteProjectInfos, projectInfos, infosByLevel, solutionTargets);
 310                         AddProjectTargets (p, solutionTargets, projectInfos);
 311                         AddSolutionTargets (p, num_levels, websiteProjectInfos.Values);
 312                 }
 313
 314                 string GetSlnFileVersion (StreamReader reader)
 315                 {
 316                         string strInput = null;
 317                         Match match;
 318
 319                         strInput = reader.ReadLine();
 320                         if (strInput == null)
 321                                 return null;
 322
 323                         match = slnVersionRegex.Match(strInput);
 324                         if (!match.Success) {
 325                                 strInput = reader.ReadLine();
 326                                 if (strInput == null)
 327                                         return null;
 328                                 match = slnVersionRegex.Match (strInput);
 329                         }
 330
 331                         if (match.Success)
 332                                 return match.Groups[1].Value;
 333
 334                         return null;
 335                 }
 336
 337                 void AddGeneralSettings (string solutionFile, Project p)
 338                 {
 339                         p.DefaultTargets = "Build";
 340                         p.InitialTargets = "ValidateSolutionConfiguration";
 341                         p.AddNewUsingTaskFromAssemblyName ("CreateTemporaryVCProject", "Microsoft.Build.Tasks, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a");
 342                         p.AddNewUsingTaskFromAssemblyName ("ResolveVCProjectOutput", "Microsoft.Build.Tasks, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a");
 343
 344                         string solutionFilePath = Path.GetFullPath (solutionFile);
 345                         BuildPropertyGroup solutionPropertyGroup = p.AddNewPropertyGroup (true);
 346                         solutionPropertyGroup.AddNewProperty ("SolutionDir", Path.GetDirectoryName (solutionFilePath) + Path.DirectorySeparatorChar);
 347                         solutionPropertyGroup.AddNewProperty ("SolutionExt", Path.GetExtension (solutionFile));
 348                         solutionPropertyGroup.AddNewProperty ("SolutionFileName", Path.GetFileName (solutionFile));
 349                         solutionPropertyGroup.AddNewProperty ("SolutionName", Path.GetFileNameWithoutExtension (solutionFile));
 350                         solutionPropertyGroup.AddNewProperty ("SolutionPath", solutionFilePath);
 351                 }
 352
 353                 void ParseSolutionConfigurationPlatforms (string section, List<TargetInfo> solutionTargets)
 354                 {
 355                         Match solutionConfigurationPlatform = solutionConfigurationRegex.Match (section);
 356                         while (solutionConfigurationPlatform.Success) {
 357                                 string solutionConfiguration = solutionConfigurationPlatform.Groups[1].Value;
 358                                 string solutionPlatform = solutionConfigurationPlatform.Groups[2].Value;
 359                                 solutionTargets.Add (new TargetInfo (solutionConfiguration, solutionPlatform));
 360                                 solutionConfigurationPlatform = solutionConfigurationPlatform.NextMatch ();
 361                         }
 362                 }
 363
 364                 // ignores the website projects, in the websiteProjectInfos
 365                 void ParseProjectConfigurationPlatforms (string section, Dictionary<Guid, ProjectInfo> projectInfos,
 366                                 Dictionary<Guid, ProjectInfo> websiteProjectInfos)
 367                 {
 368                         List<Guid> missingGuids = new List<Guid> ();
 369                         Match projectConfigurationPlatform = projectConfigurationActiveCfgRegex.Match (section);
 370                         while (projectConfigurationPlatform.Success) {
 371                                 Guid guid = new Guid (projectConfigurationPlatform.Groups[1].Value);
 372                                 ProjectInfo projectInfo;
 373                                 if (!projectInfos.TryGetValue (guid, out projectInfo)) {
 374                                         if (!missingGuids.Contains (guid)) {
 375                                                 if (!websiteProjectInfos.ContainsKey (guid))
 376                                                         // ignore website projects
 377                                                         RaiseWarning (0, string.Format("Failed to find project {0}", guid));
 378                                                 missingGuids.Add (guid);
 379                                         }
 380                                         projectConfigurationPlatform = projectConfigurationPlatform.NextMatch ();
 381                                         continue;
 382                                 }
 383                                 string solConf = projectConfigurationPlatform.Groups[2].Value;
 384                                 string solPlat = projectConfigurationPlatform.Groups[3].Value;
 385                                 string projConf = projectConfigurationPlatform.Groups[4].Value;
 386                                 string projPlat = projectConfigurationPlatform.Groups[5].Value;
 387                                 // hack, what are they doing here?
 388                                 if (projPlat == "Any CPU")
 389                                         projPlat = "AnyCPU";
 390                                 projectInfo.TargetMap.Add (new TargetInfo (solConf, solPlat), new TargetInfo (projConf, projPlat));
 391                                 projectConfigurationPlatform = projectConfigurationPlatform.NextMatch ();
 392                         }
 393                         Match projectConfigurationPlatformBuild = projectConfigurationBuildRegex.Match (section);
 394                         while (projectConfigurationPlatformBuild.Success) {
 395                                 Guid guid = new Guid (projectConfigurationPlatformBuild.Groups[1].Value);
 396                                 ProjectInfo projectInfo;
 397                                 if (!projectInfos.TryGetValue (guid, out projectInfo)) {
 398                                         if (!missingGuids.Contains (guid)) {
 399                                                 RaiseWarning (0, string.Format("Failed to find project {0}", guid));
 400                                                 missingGuids.Add (guid);
 401                                         }
 402                                         projectConfigurationPlatformBuild = projectConfigurationPlatformBuild.NextMatch ();
 403                                         continue;
 404                                 }
 405                                 string solConf = projectConfigurationPlatformBuild.Groups[2].Value;
 406                                 string solPlat = projectConfigurationPlatformBuild.Groups[3].Value;
 407                                 string projConf = projectConfigurationPlatformBuild.Groups[4].Value;
 408                                 string projPlat = projectConfigurationPlatformBuild.Groups[5].Value;
 409                                 // hack, what are they doing here?
 410                                 if (projPlat == "Any CPU")
 411                                         projPlat = "AnyCPU";
 412                                 projectInfo.TargetMap[new TargetInfo (solConf, solPlat)] = new TargetInfo (projConf, projPlat, true);
 413                                 projectConfigurationPlatformBuild = projectConfigurationPlatformBuild.NextMatch ();
 414                         }
 415                 }
 416
 417                 void ParseSolutionProperties (string section)
 418                 {
 419                 }
 420
 421                 void AddCurrentSolutionConfigurationContents (Project p, List<TargetInfo> solutionTargets,
 422                                 Dictionary<Guid, ProjectInfo> projectInfos,
 423                                 Dictionary<Guid, ProjectInfo> websiteProjectInfos)
 424                 {
 425                         TargetInfo default_target_info = new TargetInfo ("Debug", "Any CPU");
 426                         if (solutionTargets.Count > 0) {
 427                                 bool found = false;
 428                                 foreach (TargetInfo tinfo in solutionTargets) {
 429                                         if (String.Compare (tinfo.Platform, "Mixed Platforms") == 0) {
 430                                                 default_target_info = tinfo;
 431                                                 found = true;
 432                                                 break;
 433                                         }
 434                                 }
 435
 436                                 if (!found)
 437                                         default_target_info = solutionTargets [0];
 438                         }
 439
 440                         AddDefaultSolutionConfiguration (p, default_target_info);
 441
 442                         foreach (TargetInfo solutionTarget in solutionTargets) {
 443                                 BuildPropertyGroup platformPropertyGroup = p.AddNewPropertyGroup (false);
 444                                 platformPropertyGroup.Condition = string.Format (
 445                                         " ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ",
 446                                         solutionTarget.Configuration,
 447                                         solutionTarget.Platform
 448                                         );
 449
 450                                 StringBuilder solutionConfigurationContents = new StringBuilder ();
 451                                 solutionConfigurationContents.Append ("<SolutionConfiguration xmlns=\"\">");
 452                                 foreach (KeyValuePair<Guid, ProjectInfo> projectInfo in projectInfos) {
 453                                         AddProjectConfigurationItems (projectInfo.Key, projectInfo.Value, solutionTarget, solutionConfigurationContents);
 454                                 }
 455                                 solutionConfigurationContents.Append ("</SolutionConfiguration>");
 456
 457                                 platformPropertyGroup.AddNewProperty ("CurrentSolutionConfigurationContents",
 458                                                 solutionConfigurationContents.ToString ());
 459                         }
 460                 }
 461
 462                 void AddProjectConfigurationItems (Guid guid, ProjectInfo projectInfo, TargetInfo solutionTarget,
 463                                 StringBuilder solutionConfigurationContents)
 464                 {
 465                         foreach (KeyValuePair<TargetInfo, TargetInfo> targetInfo in projectInfo.TargetMap) {
 466                                 if (solutionTarget.Configuration == targetInfo.Key.Configuration &&
 467                                                 solutionTarget.Platform == targetInfo.Key.Platform) {
 468                                         solutionConfigurationContents.AppendFormat (
 469                                                         "<ProjectConfiguration Project=\"{0}\">{1}|{2}</ProjectConfiguration>",
 470                                         guid.ToString ("B").ToUpper (), targetInfo.Value.Configuration, targetInfo.Value.Platform);
 471                                 }
 472                         }
 473                 }
 474
 475                 void AddDefaultSolutionConfiguration (Project p, TargetInfo target)
 476                 {
 477                         BuildPropertyGroup configurationPropertyGroup = p.AddNewPropertyGroup (true);
 478                         configurationPropertyGroup.Condition = " '$(Configuration)' == '' ";
 479                         configurationPropertyGroup.AddNewProperty ("Configuration", target.Configuration);
 480
 481                         BuildPropertyGroup platformPropertyGroup = p.AddNewPropertyGroup (true);
 482                         platformPropertyGroup.Condition = " '$(Platform)' == '' ";
 483                         platformPropertyGroup.AddNewProperty ("Platform", target.Platform);
 484
 485                         // emit default for AspNetConfiguration also
 486                         BuildPropertyGroup aspNetConfigurationPropertyGroup = p.AddNewPropertyGroup (true);
 487                         aspNetConfigurationPropertyGroup.Condition = " ('$(AspNetConfiguration)' == '') ";
 488                         aspNetConfigurationPropertyGroup.AddNewProperty ("AspNetConfiguration", "$(Configuration)");
 489                 }
 490
 491                 void AddWarningForMissingProjectConfiguration (Target target, string slnConfig, string slnPlatform, string projectName)
 492                 {
 493                         BuildTask task = target.AddNewTask ("Warning");
 494                         task.SetParameterValue ("Text",
 495                                         String.Format ("The project configuration for project '{0}' corresponding " +
 496                                                 "to the solution configuration '{1}|{2}' was not found in the solution file.",
 497                                                 projectName, slnConfig, slnPlatform));
 498                         task.Condition = String.Format ("('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}')",
 499                                                 slnConfig, slnPlatform);
 500
 501                 }
 502
 503                 // Website project methods
 504
 505                 void AddWebsiteProperties (Project p, Dictionary<Guid, ProjectInfo> websiteProjectInfos,
 506                                 Dictionary<Guid, ProjectInfo> projectInfos)
 507                 {
 508                         var propertyGroupByConfig = new Dictionary<string, BuildPropertyGroup> ();
 509                         foreach (KeyValuePair<Guid, ProjectInfo> infoPair in websiteProjectInfos) {
 510                                 ProjectInfo info = infoPair.Value;
 511                                 string projectGuid = infoPair.Key.ToString ();
 512
 513                                 ProjectSection section;
 514                                 if (!info.ProjectSections.TryGetValue ("WebsiteProperties", out section)) {
 515                                         RaiseWarning (0, String.Format ("Website project '{0}' does not have the required project section: WebsiteProperties. Ignoring project.", info.Name));
 516                                         return;
 517                                 }
 518
 519                                 //parse project references
 520                                 string [] ref_guids = null;
 521                                 string references;
 522                                 if (section.Properties.TryGetValue ("ProjectReferences", out references)) {
 523                                         ref_guids = references.Split (new char [] {';'}, StringSplitOptions.RemoveEmptyEntries);
 524                                         for (int i = 0; i < ref_guids.Length; i ++) {
 525                                                 // "{guid}|foo.dll"
 526                                                 ref_guids [i] = ref_guids [i].Split ('|') [0];
 527
 528                                                 Guid r_guid = new Guid (ref_guids [i]);
 529                                                 ProjectInfo ref_info;
 530                                                 if (projectInfos.TryGetValue (r_guid, out ref_info))
 531                                                         // ignore if not found
 532                                                         info.Dependencies [r_guid] = ref_info;
 533                                         }
 534                                 }
 535
 536                                 foreach (KeyValuePair<string, string> pair in section.Properties) {
 537                                         //looking for -- ConfigName.AspNetCompiler.PropName
 538                                         string [] parts = pair.Key.Split ('.');
 539                                         if (parts.Length != 3 || String.Compare (parts [1], "AspNetCompiler") != 0)
 540                                                 continue;
 541
 542                                         string config = parts [0];
 543                                         string propertyName = parts [2];
 544
 545                                         BuildPropertyGroup bpg;
 546                                         if (!propertyGroupByConfig.TryGetValue (config, out bpg)) {
 547                                                 bpg = p.AddNewPropertyGroup (true);
 548                                                 bpg.Condition = String.Format (" '$(AspNetConfiguration)' == '{0}' ", config);
 549                                                 propertyGroupByConfig [config] = bpg;
 550                                         }
 551
 552                                         bpg.AddNewProperty (String.Format ("Project_{0}_AspNet{1}", projectGuid, propertyName),
 553                                                                 pair.Value);
 554
 555                                         if (!info.AspNetConfigurations.Contains (config))
 556                                                 info.AspNetConfigurations.Add (config);
 557                                 }
 558                         }
 559                 }
 560
 561                 // For WebSite projects
 562                 // The main "Build" target:
 563                 //      1. builds all non-website projects
 564                 //      2. calls target for website project
 565                 //              - gets target path for the referenced projects
 566                 //              - Resolves dependencies, satellites etc for the
 567                 //                referenced project assemblies, and copies them
 568                 //                to bin/ folder
 569                 void AddWebsiteTargets (Project p, Dictionary<Guid, ProjectInfo> websiteProjectInfos,
 570                                 Dictionary<Guid, ProjectInfo> projectInfos, List<ProjectInfo>[] infosByLevel,
 571                                 List<TargetInfo> solutionTargets)
 572                 {
 573                         foreach (ProjectInfo w_info in websiteProjectInfos.Values) {
 574                                 // gets a linear list of dependencies
 575                                 List<ProjectInfo> depInfos = new List<ProjectInfo> ();
 576                                 foreach (List<ProjectInfo> pinfos in infosByLevel) {
 577                                         foreach (ProjectInfo pinfo in pinfos)
 578                                                 if (w_info.Dependencies.ContainsKey (pinfo.Guid))
 579                                                         depInfos.Add (pinfo);
 580                                 }
 581
 582                                 foreach (string buildTarget in new string [] {"Build", "Rebuild"})
 583                                         AddWebsiteTarget (p, w_info, projectInfos, depInfos, solutionTargets, buildTarget);
 584
 585                                 // clean/publish are not supported for website projects
 586                                 foreach (string buildTarget in new string [] {"Clean", "Publish"})
 587                                         AddWebsiteUnsupportedTarget (p, w_info, depInfos, buildTarget);
 588                         }
 589                 }
 590
 591                 void AddWebsiteTarget (Project p, ProjectInfo webProjectInfo,
 592                                 Dictionary<Guid, ProjectInfo> projectInfos, List<ProjectInfo> depInfos,
 593                                 List<TargetInfo> solutionTargets, string buildTarget)
 594                 {
 595                         string w_guid = webProjectInfo.Guid.ToString ().ToUpper ();
 596
 597                         Target target = p.Targets.AddNewTarget (GetTargetNameForProject (webProjectInfo.Name, buildTarget));
 598                         target.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 599                         target.DependsOnTargets = GetWebsiteDependsOnTarget (depInfos, buildTarget);
 600
 601                         // this item collects all the references
 602                         string final_ref_item = String.Format ("Project_{0}_References{1}", w_guid,
 603                                                         buildTarget != "Build" ? "_" + buildTarget : String.Empty);
 604
 605                         foreach (TargetInfo targetInfo in solutionTargets) {
 606                                 int ref_num = 0;
 607                                 foreach (ProjectInfo depInfo in depInfos) {
 608                                         TargetInfo projectTargetInfo;
 609                                         if (!depInfo.TargetMap.TryGetValue (targetInfo, out projectTargetInfo))
 610                                                 // Ignore, no config, so no target path
 611                                                 continue;
 612
 613                                         // GetTargetPath from the referenced project
 614                                         AddWebsiteMSBuildTaskForReference (target, depInfo, projectTargetInfo, targetInfo,
 615                                                         final_ref_item, ref_num);
 616                                         ref_num ++;
 617                                 }
 618                         }
 619
 620                         // resolve the references
 621                         AddWebsiteResolveAndCopyReferencesTasks (target, webProjectInfo, final_ref_item, w_guid);
 622                 }
 623
 624                 // emits the MSBuild task to GetTargetPath for the referenced project
 625                 void AddWebsiteMSBuildTaskForReference (Target target, ProjectInfo depInfo, TargetInfo projectTargetInfo,
 626                                 TargetInfo solutionTargetInfo, string final_ref_item, int ref_num)
 627                 {
 628                         BuildTask task = target.AddNewTask ("MSBuild");
 629                         task.SetParameterValue ("Projects", depInfo.FileName);
 630                         task.SetParameterValue ("Targets", "GetTargetPath");
 631
 632                         task.SetParameterValue ("Properties", string.Format ("Configuration={0}; Platform={1}; BuildingSolutionFile=true; CurrentSolutionConfigurationContents=$(CurrentSolutionConfigurationContents); SolutionDir=$(SolutionDir); SolutionExt=$(SolutionExt); SolutionFileName=$(SolutionFileName); SolutionName=$(SolutionName); SolutionPath=$(SolutionPath)", projectTargetInfo.Configuration, projectTargetInfo.Platform));
 633                         task.Condition = string.Format (" ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ", solutionTargetInfo.Configuration, solutionTargetInfo.Platform);
 634
 635                         string ref_item = String.Format ("{0}_{1}",
 636                                                 final_ref_item, ref_num);
 637
 638                         task.AddOutputItem ("TargetOutputs", ref_item);
 639
 640                         task = target.AddNewTask ("CreateItem");
 641                         task.SetParameterValue ("Include", String.Format ("@({0})", ref_item));
 642                         task.SetParameterValue ("AdditionalMetadata", String.Format ("Guid={{{0}}}",
 643                                                 depInfo.Guid.ToString ().ToUpper ()));
 644                         task.AddOutputItem ("Include", final_ref_item);
 645                 }
 646
 647                 void AddWebsiteResolveAndCopyReferencesTasks (Target target, ProjectInfo webProjectInfo,
 648                                 string final_ref_item, string w_guid)
 649                 {
 650                         BuildTask task = target.AddNewTask ("ResolveAssemblyReference");
 651                         task.SetParameterValue ("Assemblies", String.Format ("@({0}->'%(FullPath)')", final_ref_item));
 652                         task.SetParameterValue ("TargetFrameworkDirectories", "$(TargetFrameworkPath)");
 653                         task.SetParameterValue ("SearchPaths", "{RawFileName};{TargetFrameworkDirectory};{GAC}");
 654                         task.SetParameterValue ("FindDependencies", "true");
 655                         task.SetParameterValue ("FindSatellites", "true");
 656                         task.SetParameterValue ("FindRelatedFiles", "true");
 657                         task.Condition = String.Format ("Exists ('%({0}.Identity)')", final_ref_item);
 658
 659                         string copylocal_item = String.Format ("{0}_CopyLocalFiles", final_ref_item);
 660                         task.AddOutputItem ("CopyLocalFiles", copylocal_item);
 661
 662                         // Copy the references
 663                         task = target.AddNewTask ("Copy");
 664                         task.SetParameterValue ("SourceFiles", String.Format ("@({0})", copylocal_item));
 665                         task.SetParameterValue ("DestinationFiles", String.Format (
 666                                                 "@({0}->'$(Project_{1}_AspNetPhysicalPath)\\Bin\\%(DestinationSubDirectory)%(Filename)%(Extension)')",
 667                                                 copylocal_item, w_guid));
 668
 669                         // AspNetConfiguration, is config for the website project, useful
 670                         // for overriding from command line
 671                         StringBuilder cond = new StringBuilder ();
 672                         foreach (string config in webProjectInfo.AspNetConfigurations) {
 673                                 if (cond.Length > 0)
 674                                         cond.Append (" or ");
 675                                 cond.AppendFormat (" ('$(AspNetConfiguration)' == '{0}') ", config);
 676                         }
 677                         task.Condition = cond.ToString ();
 678
 679                         task = target.AddNewTask ("Message");
 680                         cond = new StringBuilder ();
 681                         foreach (string config in webProjectInfo.AspNetConfigurations) {
 682                                 if (cond.Length > 0)
 683                                         cond.Append (" and ");
 684                                 cond.AppendFormat (" ('$(AspNetConfiguration)' != '{0}') ", config);
 685                         }
 686                         task.Condition = cond.ToString ();
 687                         task.SetParameterValue ("Text", "Skipping as the '$(AspNetConfiguration)' configuration is " +
 688                                                 "not supported by this website project.");
 689                 }
 690
 691                 void AddWebsiteUnsupportedTarget (Project p, ProjectInfo webProjectInfo, List<ProjectInfo> depInfos,
 692                                 string buildTarget)
 693                 {
 694                         Target target = p.Targets.AddNewTarget (GetTargetNameForProject (webProjectInfo.Name, buildTarget));
 695                         target.DependsOnTargets = GetWebsiteDependsOnTarget (depInfos, buildTarget);
 696
 697                         BuildTask task = target.AddNewTask ("Message");
 698                         task.SetParameterValue ("Text", String.Format (
 699                                                 "Target '{0}' not support for website projects", buildTarget));
 700                 }
 701
 702                 string GetWebsiteDependsOnTarget (List<ProjectInfo> depInfos, string buildTarget)
 703                 {
 704                         StringBuilder deps = new StringBuilder ();
 705                         foreach (ProjectInfo pinfo in depInfos) {
 706                                 if (deps.Length > 0)
 707                                         deps.Append (";");
 708                                 deps.Append (GetTargetNameForProject (pinfo.Name, buildTarget));
 709                         }
 710                         deps.Append (";GetFrameworkPath");
 711                         return deps.ToString ();
 712                 }
 713
 714                 void AddGetFrameworkPathTarget (Project p)
 715                 {
 716                         Target t = p.Targets.AddNewTarget ("GetFrameworkPath");
 717                         BuildTask task = t.AddNewTask ("GetFrameworkPath");
 718                         task.AddOutputProperty ("Path", "TargetFrameworkPath");
 719                 }
 720
 721                 void AddValidateSolutionConfiguration (Project p)
 722                 {
 723                         Target t = p.Targets.AddNewTarget ("ValidateSolutionConfiguration");
 724                         BuildTask task = t.AddNewTask ("Warning");
 725                         task.SetParameterValue ("Text", "On windows, an environment variable 'Platform' is set to MCD sometimes, and this overrides the Platform property" +
 726                                                 " for xbuild, which could be an invalid Platform for this solution file. And so you are getting the following error." +
 727                                                 " You could override it by either setting the environment variable to nothing, as\n" +
 728                                                 "   set Platform=\n" +
 729                                                 "Or explicity specify its value on the command line, as\n" +
 730                                                 "   xbuild Foo.sln /p:Platform=Release");
 731                         task.Condition = "('$(CurrentSolutionConfigurationContents)' == '') and ('$(SkipInvalidConfigurations)' != 'true')" +
 732                                         " and '$(Platform)' == 'MCD' and '$(OS)' == 'Windows_NT'";
 733
 734                         task = t.AddNewTask ("Error");
 735                         task.SetParameterValue ("Text", "Invalid solution configuration and platform: \"$(Configuration)|$(Platform)\".");
 736                         task.Condition = "('$(CurrentSolutionConfigurationContents)' == '') and ('$(SkipInvalidConfigurations)' != 'true')";
 737                         task = t.AddNewTask ("Warning");
 738                         task.SetParameterValue ("Text", "Invalid solution configuration and platform: \"$(Configuration)|$(Platform)\".");
 739                         task.Condition = "('$(CurrentSolutionConfigurationContents)' == '') and ('$(SkipInvalidConfigurations)' == 'true')";
 740                         task = t.AddNewTask ("Message");
 741                         task.SetParameterValue ("Text", "Building solution configuration \"$(Configuration)|$(Platform)\".");
 742                         task.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 743                 }
 744
 745                 void AddProjectTargets (Project p, List<TargetInfo> solutionTargets, Dictionary<Guid, ProjectInfo> projectInfos)
 746                 {
 747                         foreach (KeyValuePair<Guid, ProjectInfo> projectInfo in projectInfos) {
 748                                 ProjectInfo project = projectInfo.Value;
 749                                 foreach (string buildTarget in buildTargets) {
 750                                         string target_name = GetTargetNameForProject (project.Name, buildTarget);
 751                                         Target target = p.Targets.AddNewTarget (target_name);
 752                                         target.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 753                                         if (project.Dependencies.Count > 0)
 754                                                 target.DependsOnTargets = String.Join (";",
 755                                                                 project.Dependencies.Values.Select (
 756                                                                         di => GetTargetNameForProject (di.Name, buildTarget)).ToArray ());
 757
 758                                         foreach (TargetInfo targetInfo in solutionTargets) {
 759                                                 BuildTask task = null;
 760                                                 TargetInfo projectTargetInfo;
 761                                                 if (!project.TargetMap.TryGetValue (targetInfo, out projectTargetInfo)) {
 762                                                         AddWarningForMissingProjectConfiguration (target, targetInfo.Configuration,
 763                                                                         targetInfo.Platform, project.Name);
 764                                                         continue;
 765                                                 }
 766                                                 if (projectTargetInfo.Build) {
 767                                                         task = target.AddNewTask ("MSBuild");
 768                                                         task.SetParameterValue ("Projects", project.FileName);
 769                                                         task.SetParameterValue ("ToolsVersion", "$(ProjectToolsVersion)");
 770
 771                                                         if (buildTarget != "Build")
 772                                                                 task.SetParameterValue ("Targets", buildTarget);
 773                                                         task.SetParameterValue ("Properties", string.Format ("Configuration={0}; Platform={1}; BuildingSolutionFile=true; CurrentSolutionConfigurationContents=$(CurrentSolutionConfigurationContents); SolutionDir=$(SolutionDir); SolutionExt=$(SolutionExt); SolutionFileName=$(SolutionFileName); SolutionName=$(SolutionName); SolutionPath=$(SolutionPath)", projectTargetInfo.Configuration, projectTargetInfo.Platform));
 774                                                 } else {
 775                                                         task = target.AddNewTask ("Message");
 776                                                         task.SetParameterValue ("Text", string.Format ("Project \"{0}\" is disabled for solution configuration \"{1}|{2}\".", project.Name, targetInfo.Configuration, targetInfo.Platform));
 777                                                 }
 778                                                 task.Condition = string.Format (" ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ", targetInfo.Configuration, targetInfo.Platform);
 779                                         }
 780                                 }
 781                         }
 782                 }
 783
 784
 785                 string GetTargetNameForProject (string projectName, string buildTarget)
 786                 {
 787                         //FIXME: hack
 788                         projectName = projectName.Replace ("\\", "/").Replace (".", "_");
 789                         string target_name = projectName +
 790                                         (buildTarget == "Build" ? string.Empty : ":" + buildTarget);
 791
 792                         if (IsBuildTargetName (projectName))
 793                                 target_name = "Solution:" + target_name;
 794
 795                         return target_name;
 796                 }
 797
 798                 bool IsBuildTargetName (string name)
 799                 {
 800                         foreach (string tgt in buildTargets)
 801                                 if (name == tgt)
 802                                         return true;
 803                         return false;
 804                 }
 805
 806                 // returns number of levels
 807                 int AddBuildLevels (Project p, List<TargetInfo> solutionTargets, Dictionary<Guid, ProjectInfo> projectInfos,
 808                                 ref List<ProjectInfo>[] infosByLevel)
 809                 {
 810                         infosByLevel = TopologicalSort<ProjectInfo> (projectInfos.Values);
 811
 812                         foreach (TargetInfo targetInfo in solutionTargets) {
 813                                 BuildItemGroup big = p.AddNewItemGroup ();
 814                                 big.Condition = String.Format (" ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ",
 815                                                 targetInfo.Configuration, targetInfo.Platform);
 816
 817                                 //FIXME: every level has projects that can be built in parallel.
 818                                 //       levels are ordered on the basis of the dependency graph
 819
 820                                 for (int i = 0; i < infosByLevel.Length; i ++) {
 821                                         string build_level = String.Format ("BuildLevel{0}", i);
 822                                         string skip_level = String.Format ("SkipLevel{0}", i);
 823                                         string missing_level = String.Format ("MissingConfigLevel{0}", i);
 824
 825                                         foreach (ProjectInfo projectInfo in infosByLevel [i]) {
 826                                                 TargetInfo projectTargetInfo;
 827                                                 if (!projectInfo.TargetMap.TryGetValue (targetInfo, out projectTargetInfo)) {
 828                                                         // missing project config
 829                                                         big.AddNewItem (missing_level, projectInfo.Name);
 830                                                         continue;
 831                                                 }
 832
 833                                                 if (projectTargetInfo.Build) {
 834                                                         BuildItem item = big.AddNewItem (build_level, projectInfo.FileName);
 835                                                         item.SetMetadata ("Configuration", projectTargetInfo.Configuration);
 836                                                         item.SetMetadata ("Platform", projectTargetInfo.Platform);
 837                                                 } else {
 838                                                         // build disabled
 839                                                         big.AddNewItem (skip_level, projectInfo.Name);
 840                                                 }
 841                                         }
 842                                 }
 843                         }
 844
 845                         return infosByLevel.Length;
 846                 }
 847
 848                 void AddSolutionTargets (Project p, int num_levels, IEnumerable<ProjectInfo> websiteProjectInfos)
 849                 {
 850                         foreach (string buildTarget in buildTargets) {
 851                                 Target t = p.Targets.AddNewTarget (buildTarget);
 852                                 t.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 853
 854                                 BuildTask task = null;
 855                                 for (int i = 0; i < num_levels; i ++) {
 856                                         string level_str = String.Format ("BuildLevel{0}", i);
 857                                         task = t.AddNewTask ("MSBuild");
 858                                         task.SetParameterValue ("Condition", String.Format ("'@({0})' != ''", level_str));
 859                                         task.SetParameterValue ("Projects", String.Format ("@({0})", level_str));
 860                                         task.SetParameterValue ("ToolsVersion", "$(ProjectToolsVersion)");
 861                                         task.SetParameterValue ("Properties",
 862                                                 string.Format ("Configuration=%(Configuration); Platform=%(Platform); BuildingSolutionFile=true; CurrentSolutionConfigurationContents=$(CurrentSolutionConfigurationContents); SolutionDir=$(SolutionDir); SolutionExt=$(SolutionExt); SolutionFileName=$(SolutionFileName); SolutionName=$(SolutionName); SolutionPath=$(SolutionPath)"));
 863                                         if (buildTarget != "Build")
 864                                                 task.SetParameterValue ("Targets", buildTarget);
 865                                         //FIXME: change this to BuildInParallel=true, when parallel
 866                                         //       build support gets added
 867                                         task.SetParameterValue ("RunEachTargetSeparately", "true");
 868
 869                                         level_str = String.Format ("SkipLevel{0}", i);
 870                                         task = t.AddNewTask ("Message");
 871                                         task.Condition = String.Format ("'@({0})' != ''", level_str);
 872                                         task.SetParameterValue ("Text",
 873                                                 String.Format ("The project '%({0}.Identity)' is disabled for solution " +
 874                                                         "configuration '$(Configuration)|$(Platform)'.", level_str));
 875
 876                                         level_str = String.Format ("MissingConfigLevel{0}", i);
 877                                         task = t.AddNewTask ("Warning");
 878                                         task.Condition = String.Format ("'@({0})' != ''", level_str);
 879                                         task.SetParameterValue ("Text",
 880                                                 String.Format ("The project configuration for project '%({0}.Identity)' " +
 881                                                         "corresponding to the solution configuration " +
 882                                                         "'$(Configuration)|$(Platform)' was not found.", level_str));
 883                                 }
 884
 885                                 // "build" website projects also
 886                                 StringBuilder w_targets = new StringBuilder ();
 887                                 foreach (ProjectInfo info in websiteProjectInfos) {
 888                                         if (w_targets.Length > 0)
 889                                                 w_targets.Append (";");
 890                                         w_targets.Append (GetTargetNameForProject (info.Name, buildTarget));
 891                                 }
 892
 893                                 task = t.AddNewTask ("CallTarget");
 894                                 task.SetParameterValue ("Targets", w_targets.ToString ());
 895                                 task.SetParameterValue ("RunEachTargetSeparately", "true");
 896                         }
 897                 }
 898
 899                 // Sorts the ProjectInfo dependency graph, to obtain
 900                 // a series of build levels with projects. Projects
 901                 // in each level can be run parallel (no inter-dependency).
 902                 static List<T>[] TopologicalSort<T> (IEnumerable<T> items) where T: ProjectInfo
 903                 {
 904                         IList<T> allItems;
 905                         allItems = items as IList<T>;
 906                         if (allItems == null)
 907                                 allItems = new List<T> (items);
 908
 909                         bool[] inserted = new bool[allItems.Count];
 910                         bool[] triedToInsert = new bool[allItems.Count];
 911                         int[] levels = new int [allItems.Count];
 912
 913                         int maxdepth = 0;
 914                         for (int i = 0; i < allItems.Count; ++i) {
 915                                 int d = Insert<T> (i, allItems, levels, inserted, triedToInsert);
 916                                 if (d > maxdepth)
 917                                         maxdepth = d;
 918                         }
 919
 920                         // Separate out the project infos by build level
 921                         List<T>[] infosByLevel = new List<T>[maxdepth];
 922                         for (int i = 0; i < levels.Length; i ++) {
 923                                 int level = levels [i] - 1;
 924                                 if (infosByLevel [level] == null)
 925                                         infosByLevel [level] = new List<T> ();
 926
 927                                 infosByLevel [level].Add (allItems [i]);
 928                         }
 929
 930                         return infosByLevel;
 931                 }
 932
 933                 // returns level# for the project
 934                 static int Insert<T> (int index, IList<T> allItems, int[] levels, bool[] inserted, bool[] triedToInsert)
 935                         where T: ProjectInfo
 936                 {
 937                         if (inserted [index])
 938                                 return levels [index];
 939
 940                         if (triedToInsert[index])
 941                                 throw new InvalidOperationException (String.Format (
 942                                                 "Cyclic dependency involving project {0} found in the project dependency graph",
 943                                                 allItems [index].Name));
 944
 945                         triedToInsert[index] = true;
 946                         ProjectInfo insertItem = allItems[index];
 947
 948                         int maxdepth = 0;
 949                         foreach (ProjectInfo dependency in insertItem.Dependencies.Values) {
 950                                 for (int j = 0; j < allItems.Count; ++j) {
 951                                         ProjectInfo checkItem = allItems [j];
 952                                         if (dependency.FileName == checkItem.FileName) {
 953                                                 int d = Insert (j, allItems, levels, inserted, triedToInsert);
 954                                                 maxdepth = d > maxdepth ? d : maxdepth;
 955                                                 break;
 956                                         }
 957                                 }
 958                         }
 959                         levels [index] = maxdepth + 1;
 960                         inserted [index] = true;
 961
 962                         return levels [index];
 963                 }
 964
 965                 public static IEnumerable<string> GetAllProjectFileNames (string solutionFile)
 966                 {
 967                         StreamReader reader = new StreamReader (solutionFile);
 968                         string line = reader.ReadToEnd ();
 969                         line = line.Replace ("\r\n", "\n");
 970                         string soln_dir = Path.GetDirectoryName (solutionFile);
 971
 972                         Match m = projectRegex.Match (line);
 973                         while (m.Success) {
 974                                 if (String.Compare (m.Groups [1].Value, solutionFolderGuid,
 975                                                 StringComparison.InvariantCultureIgnoreCase) != 0)
 976                                         yield return Path.Combine (soln_dir, m.Groups [3].Value).Replace ("\\", "/");
 977
 978                                 m = m.NextMatch ();
 979                         }
 980                 }
 981         }
 982 }
 983
 984 #endif