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 strVersion = null;
 317                         string strInput = null;
 318                         Match match;
 319
 320                         strInput = reader.ReadLine();
 321                         if (strInput == null)
 322                                 return null;
 323
 324                         match = slnVersionRegex.Match(strInput);
 325                         if (!match.Success) {
 326                                 strInput = reader.ReadLine();
 327                                 if (strInput == null)
 328                                         return null;
 329                                 match = slnVersionRegex.Match (strInput);
 330                         }
 331
 332                         if (match.Success)
 333                                 return match.Groups[1].Value;
 334
 335                         return null;
 336                 }
 337
 338                 void AddGeneralSettings (string solutionFile, Project p)
 339                 {
 340                         p.DefaultTargets = "Build";
 341                         p.InitialTargets = "ValidateSolutionConfiguration";
 342                         p.AddNewUsingTaskFromAssemblyName ("CreateTemporaryVCProject", "Microsoft.Build.Tasks, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a");
 343                         p.AddNewUsingTaskFromAssemblyName ("ResolveVCProjectOutput", "Microsoft.Build.Tasks, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a");
 344
 345                         string solutionFilePath = Path.GetFullPath (solutionFile);
 346                         BuildPropertyGroup solutionPropertyGroup = p.AddNewPropertyGroup (true);
 347                         solutionPropertyGroup.AddNewProperty ("SolutionDir", Path.GetDirectoryName (solutionFilePath) + Path.DirectorySeparatorChar);
 348                         solutionPropertyGroup.AddNewProperty ("SolutionExt", Path.GetExtension (solutionFile));
 349                         solutionPropertyGroup.AddNewProperty ("SolutionFileName", Path.GetFileName (solutionFile));
 350                         solutionPropertyGroup.AddNewProperty ("SolutionName", Path.GetFileNameWithoutExtension (solutionFile));
 351                         solutionPropertyGroup.AddNewProperty ("SolutionPath", solutionFilePath);
 352                 }
 353
 354                 void ParseSolutionConfigurationPlatforms (string section, List<TargetInfo> solutionTargets)
 355                 {
 356                         Match solutionConfigurationPlatform = solutionConfigurationRegex.Match (section);
 357                         while (solutionConfigurationPlatform.Success) {
 358                                 string solutionConfiguration = solutionConfigurationPlatform.Groups[1].Value;
 359                                 string solutionPlatform = solutionConfigurationPlatform.Groups[2].Value;
 360                                 solutionTargets.Add (new TargetInfo (solutionConfiguration, solutionPlatform));
 361                                 solutionConfigurationPlatform = solutionConfigurationPlatform.NextMatch ();
 362                         }
 363                 }
 364
 365                 // ignores the website projects, in the websiteProjectInfos
 366                 void ParseProjectConfigurationPlatforms (string section, Dictionary<Guid, ProjectInfo> projectInfos,
 367                                 Dictionary<Guid, ProjectInfo> websiteProjectInfos)
 368                 {
 369                         List<Guid> missingGuids = new List<Guid> ();
 370                         Match projectConfigurationPlatform = projectConfigurationActiveCfgRegex.Match (section);
 371                         while (projectConfigurationPlatform.Success) {
 372                                 Guid guid = new Guid (projectConfigurationPlatform.Groups[1].Value);
 373                                 ProjectInfo projectInfo;
 374                                 if (!projectInfos.TryGetValue (guid, out projectInfo)) {
 375                                         if (!missingGuids.Contains (guid)) {
 376                                                 if (!websiteProjectInfos.ContainsKey (guid))
 377                                                         // ignore website projects
 378                                                         RaiseWarning (0, string.Format("Failed to find project {0}", guid));
 379                                                 missingGuids.Add (guid);
 380                                         }
 381                                         projectConfigurationPlatform = projectConfigurationPlatform.NextMatch ();
 382                                         continue;
 383                                 }
 384                                 string solConf = projectConfigurationPlatform.Groups[2].Value;
 385                                 string solPlat = projectConfigurationPlatform.Groups[3].Value;
 386                                 string projConf = projectConfigurationPlatform.Groups[4].Value;
 387                                 string projPlat = projectConfigurationPlatform.Groups[5].Value;
 388                                 // hack, what are they doing here?
 389                                 if (projPlat == "Any CPU")
 390                                         projPlat = "AnyCPU";
 391                                 projectInfo.TargetMap.Add (new TargetInfo (solConf, solPlat), new TargetInfo (projConf, projPlat));
 392                                 projectConfigurationPlatform = projectConfigurationPlatform.NextMatch ();
 393                         }
 394                         Match projectConfigurationPlatformBuild = projectConfigurationBuildRegex.Match (section);
 395                         while (projectConfigurationPlatformBuild.Success) {
 396                                 Guid guid = new Guid (projectConfigurationPlatformBuild.Groups[1].Value);
 397                                 ProjectInfo projectInfo;
 398                                 if (!projectInfos.TryGetValue (guid, out projectInfo)) {
 399                                         if (!missingGuids.Contains (guid)) {
 400                                                 RaiseWarning (0, string.Format("Failed to find project {0}", guid));
 401                                                 missingGuids.Add (guid);
 402                                         }
 403                                         projectConfigurationPlatformBuild = projectConfigurationPlatformBuild.NextMatch ();
 404                                         continue;
 405                                 }
 406                                 string solConf = projectConfigurationPlatformBuild.Groups[2].Value;
 407                                 string solPlat = projectConfigurationPlatformBuild.Groups[3].Value;
 408                                 string projConf = projectConfigurationPlatformBuild.Groups[4].Value;
 409                                 string projPlat = projectConfigurationPlatformBuild.Groups[5].Value;
 410                                 // hack, what are they doing here?
 411                                 if (projPlat == "Any CPU")
 412                                         projPlat = "AnyCPU";
 413                                 projectInfo.TargetMap[new TargetInfo (solConf, solPlat)] = new TargetInfo (projConf, projPlat, true);
 414                                 projectConfigurationPlatformBuild = projectConfigurationPlatformBuild.NextMatch ();
 415                         }
 416                 }
 417
 418                 void ParseSolutionProperties (string section)
 419                 {
 420                 }
 421
 422                 void AddCurrentSolutionConfigurationContents (Project p, List<TargetInfo> solutionTargets,
 423                                 Dictionary<Guid, ProjectInfo> projectInfos,
 424                                 Dictionary<Guid, ProjectInfo> websiteProjectInfos)
 425                 {
 426                         TargetInfo default_target_info = new TargetInfo ("Debug", "Any CPU");
 427                         if (solutionTargets.Count > 0) {
 428                                 bool found = false;
 429                                 foreach (TargetInfo tinfo in solutionTargets) {
 430                                         if (String.Compare (tinfo.Platform, "Mixed Platforms") == 0) {
 431                                                 default_target_info = tinfo;
 432                                                 found = true;
 433                                                 break;
 434                                         }
 435                                 }
 436
 437                                 if (!found)
 438                                         default_target_info = solutionTargets [0];
 439                         }
 440
 441                         AddDefaultSolutionConfiguration (p, default_target_info);
 442
 443                         foreach (TargetInfo solutionTarget in solutionTargets) {
 444                                 BuildPropertyGroup platformPropertyGroup = p.AddNewPropertyGroup (false);
 445                                 platformPropertyGroup.Condition = string.Format (
 446                                         " ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ",
 447                                         solutionTarget.Configuration,
 448                                         solutionTarget.Platform
 449                                         );
 450
 451                                 StringBuilder solutionConfigurationContents = new StringBuilder ();
 452                                 solutionConfigurationContents.Append ("<SolutionConfiguration xmlns=\"\">");
 453                                 foreach (KeyValuePair<Guid, ProjectInfo> projectInfo in projectInfos) {
 454                                         AddProjectConfigurationItems (projectInfo.Key, projectInfo.Value, solutionTarget, solutionConfigurationContents);
 455                                 }
 456                                 solutionConfigurationContents.Append ("</SolutionConfiguration>");
 457
 458                                 platformPropertyGroup.AddNewProperty ("CurrentSolutionConfigurationContents",
 459                                                 solutionConfigurationContents.ToString ());
 460                         }
 461                 }
 462
 463                 void AddProjectConfigurationItems (Guid guid, ProjectInfo projectInfo, TargetInfo solutionTarget,
 464                                 StringBuilder solutionConfigurationContents)
 465                 {
 466                         foreach (KeyValuePair<TargetInfo, TargetInfo> targetInfo in projectInfo.TargetMap) {
 467                                 if (solutionTarget.Configuration == targetInfo.Key.Configuration &&
 468                                                 solutionTarget.Platform == targetInfo.Key.Platform) {
 469                                         solutionConfigurationContents.AppendFormat (
 470                                                         "<ProjectConfiguration Project=\"{0}\">{1}|{2}</ProjectConfiguration>",
 471                                         guid.ToString ("B").ToUpper (), targetInfo.Value.Configuration, targetInfo.Value.Platform);
 472                                 }
 473                         }
 474                 }
 475
 476                 void AddDefaultSolutionConfiguration (Project p, TargetInfo target)
 477                 {
 478                         BuildPropertyGroup configurationPropertyGroup = p.AddNewPropertyGroup (true);
 479                         configurationPropertyGroup.Condition = " '$(Configuration)' == '' ";
 480                         configurationPropertyGroup.AddNewProperty ("Configuration", target.Configuration);
 481
 482                         BuildPropertyGroup platformPropertyGroup = p.AddNewPropertyGroup (true);
 483                         platformPropertyGroup.Condition = " '$(Platform)' == '' ";
 484                         platformPropertyGroup.AddNewProperty ("Platform", target.Platform);
 485
 486                         // emit default for AspNetConfiguration also
 487                         BuildPropertyGroup aspNetConfigurationPropertyGroup = p.AddNewPropertyGroup (true);
 488                         aspNetConfigurationPropertyGroup.Condition = " ('$(AspNetConfiguration)' == '') ";
 489                         aspNetConfigurationPropertyGroup.AddNewProperty ("AspNetConfiguration", "$(Configuration)");
 490                 }
 491
 492                 void AddWarningForMissingProjectConfiguration (Target target, string slnConfig, string slnPlatform, string projectName)
 493                 {
 494                         BuildTask task = target.AddNewTask ("Warning");
 495                         task.SetParameterValue ("Text",
 496                                         String.Format ("The project configuration for project '{0}' corresponding " +
 497                                                 "to the solution configuration '{1}|{2}' was not found in the solution file.",
 498                                                 projectName, slnConfig, slnPlatform));
 499                         task.Condition = String.Format ("('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}')",
 500                                                 slnConfig, slnPlatform);
 501
 502                 }
 503
 504                 // Website project methods
 505
 506                 void AddWebsiteProperties (Project p, Dictionary<Guid, ProjectInfo> websiteProjectInfos,
 507                                 Dictionary<Guid, ProjectInfo> projectInfos)
 508                 {
 509                         var propertyGroupByConfig = new Dictionary<string, BuildPropertyGroup> ();
 510                         foreach (KeyValuePair<Guid, ProjectInfo> infoPair in websiteProjectInfos) {
 511                                 ProjectInfo info = infoPair.Value;
 512                                 string projectGuid = infoPair.Key.ToString ();
 513
 514                                 ProjectSection section;
 515                                 if (!info.ProjectSections.TryGetValue ("WebsiteProperties", out section)) {
 516                                         RaiseWarning (0, String.Format ("Website project '{0}' does not have the required project section: WebsiteProperties. Ignoring project.", info.Name));
 517                                         return;
 518                                 }
 519
 520                                 //parse project references
 521                                 string [] ref_guids = null;
 522                                 string references;
 523                                 if (section.Properties.TryGetValue ("ProjectReferences", out references)) {
 524                                         ref_guids = references.Split (new char [] {';'}, StringSplitOptions.RemoveEmptyEntries);
 525                                         for (int i = 0; i < ref_guids.Length; i ++) {
 526                                                 // "{guid}|foo.dll"
 527                                                 ref_guids [i] = ref_guids [i].Split ('|') [0];
 528
 529                                                 Guid r_guid = new Guid (ref_guids [i]);
 530                                                 ProjectInfo ref_info;
 531                                                 if (projectInfos.TryGetValue (r_guid, out ref_info))
 532                                                         // ignore if not found
 533                                                         info.Dependencies [r_guid] = ref_info;
 534                                         }
 535                                 }
 536
 537                                 foreach (KeyValuePair<string, string> pair in section.Properties) {
 538                                         //looking for -- ConfigName.AspNetCompiler.PropName
 539                                         string [] parts = pair.Key.Split ('.');
 540                                         if (parts.Length != 3 || String.Compare (parts [1], "AspNetCompiler") != 0)
 541                                                 continue;
 542
 543                                         string config = parts [0];
 544                                         string propertyName = parts [2];
 545
 546                                         BuildPropertyGroup bpg;
 547                                         if (!propertyGroupByConfig.TryGetValue (config, out bpg)) {
 548                                                 bpg = p.AddNewPropertyGroup (true);
 549                                                 bpg.Condition = String.Format (" '$(AspNetConfiguration)' == '{0}' ", config);
 550                                                 propertyGroupByConfig [config] = bpg;
 551                                         }
 552
 553                                         bpg.AddNewProperty (String.Format ("Project_{0}_AspNet{1}", projectGuid, propertyName),
 554                                                                 pair.Value);
 555
 556                                         if (!info.AspNetConfigurations.Contains (config))
 557                                                 info.AspNetConfigurations.Add (config);
 558                                 }
 559                         }
 560                 }
 561
 562                 // For WebSite projects
 563                 // The main "Build" target:
 564                 //      1. builds all non-website projects
 565                 //      2. calls target for website project
 566                 //              - gets target path for the referenced projects
 567                 //              - Resolves dependencies, satellites etc for the
 568                 //                referenced project assemblies, and copies them
 569                 //                to bin/ folder
 570                 void AddWebsiteTargets (Project p, Dictionary<Guid, ProjectInfo> websiteProjectInfos,
 571                                 Dictionary<Guid, ProjectInfo> projectInfos, List<ProjectInfo>[] infosByLevel,
 572                                 List<TargetInfo> solutionTargets)
 573                 {
 574                         foreach (ProjectInfo w_info in websiteProjectInfos.Values) {
 575                                 // gets a linear list of dependencies
 576                                 List<ProjectInfo> depInfos = new List<ProjectInfo> ();
 577                                 foreach (List<ProjectInfo> pinfos in infosByLevel) {
 578                                         foreach (ProjectInfo pinfo in pinfos)
 579                                                 if (w_info.Dependencies.ContainsKey (pinfo.Guid))
 580                                                         depInfos.Add (pinfo);
 581                                 }
 582
 583                                 foreach (string buildTarget in new string [] {"Build", "Rebuild"})
 584                                         AddWebsiteTarget (p, w_info, projectInfos, depInfos, solutionTargets, buildTarget);
 585
 586                                 // clean/publish are not supported for website projects
 587                                 foreach (string buildTarget in new string [] {"Clean", "Publish"})
 588                                         AddWebsiteUnsupportedTarget (p, w_info, depInfos, buildTarget);
 589                         }
 590                 }
 591
 592                 void AddWebsiteTarget (Project p, ProjectInfo webProjectInfo,
 593                                 Dictionary<Guid, ProjectInfo> projectInfos, List<ProjectInfo> depInfos,
 594                                 List<TargetInfo> solutionTargets, string buildTarget)
 595                 {
 596                         string w_guid = webProjectInfo.Guid.ToString ().ToUpper ();
 597
 598                         Target target = p.Targets.AddNewTarget (GetTargetNameForProject (webProjectInfo.Name, buildTarget));
 599                         target.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 600                         target.DependsOnTargets = GetWebsiteDependsOnTarget (depInfos, buildTarget);
 601
 602                         // this item collects all the references
 603                         string final_ref_item = String.Format ("Project_{0}_References{1}", w_guid,
 604                                                         buildTarget != "Build" ? "_" + buildTarget : String.Empty);
 605
 606                         foreach (TargetInfo targetInfo in solutionTargets) {
 607                                 int ref_num = 0;
 608                                 foreach (ProjectInfo depInfo in depInfos) {
 609                                         TargetInfo projectTargetInfo;
 610                                         if (!depInfo.TargetMap.TryGetValue (targetInfo, out projectTargetInfo))
 611                                                 // Ignore, no config, so no target path
 612                                                 continue;
 613
 614                                         // GetTargetPath from the referenced project
 615                                         AddWebsiteMSBuildTaskForReference (target, depInfo, projectTargetInfo, targetInfo,
 616                                                         final_ref_item, ref_num);
 617                                         ref_num ++;
 618                                 }
 619                         }
 620
 621                         // resolve the references
 622                         AddWebsiteResolveAndCopyReferencesTasks (target, webProjectInfo, final_ref_item, w_guid);
 623                 }
 624
 625                 // emits the MSBuild task to GetTargetPath for the referenced project
 626                 void AddWebsiteMSBuildTaskForReference (Target target, ProjectInfo depInfo, TargetInfo projectTargetInfo,
 627                                 TargetInfo solutionTargetInfo, string final_ref_item, int ref_num)
 628                 {
 629                         BuildTask task = target.AddNewTask ("MSBuild");
 630                         task.SetParameterValue ("Projects", depInfo.FileName);
 631                         task.SetParameterValue ("Targets", "GetTargetPath");
 632
 633                         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));
 634                         task.Condition = string.Format (" ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ", solutionTargetInfo.Configuration, solutionTargetInfo.Platform);
 635
 636                         string ref_item = String.Format ("{0}_{1}",
 637                                                 final_ref_item, ref_num);
 638
 639                         task.AddOutputItem ("TargetOutputs", ref_item);
 640
 641                         task = target.AddNewTask ("CreateItem");
 642                         task.SetParameterValue ("Include", String.Format ("@({0})", ref_item));
 643                         task.SetParameterValue ("AdditionalMetadata", String.Format ("Guid={{{0}}}",
 644                                                 depInfo.Guid.ToString ().ToUpper ()));
 645                         task.AddOutputItem ("Include", final_ref_item);
 646                 }
 647
 648                 void AddWebsiteResolveAndCopyReferencesTasks (Target target, ProjectInfo webProjectInfo,
 649                                 string final_ref_item, string w_guid)
 650                 {
 651                         BuildTask task = target.AddNewTask ("ResolveAssemblyReference");
 652                         task.SetParameterValue ("Assemblies", String.Format ("@({0}->'%(FullPath)')", final_ref_item));
 653                         task.SetParameterValue ("TargetFrameworkDirectories", "$(TargetFrameworkPath)");
 654                         task.SetParameterValue ("SearchPaths", "{RawFileName};{TargetFrameworkDirectory};{GAC}");
 655                         task.SetParameterValue ("FindDependencies", "true");
 656                         task.SetParameterValue ("FindSatellites", "true");
 657                         task.SetParameterValue ("FindRelatedFiles", "true");
 658                         task.Condition = String.Format ("Exists ('%({0}.Identity)')", final_ref_item);
 659
 660                         string copylocal_item = String.Format ("{0}_CopyLocalFiles", final_ref_item);
 661                         task.AddOutputItem ("CopyLocalFiles", copylocal_item);
 662
 663                         // Copy the references
 664                         task = target.AddNewTask ("Copy");
 665                         task.SetParameterValue ("SourceFiles", String.Format ("@({0})", copylocal_item));
 666                         task.SetParameterValue ("DestinationFiles", String.Format (
 667                                                 "@({0}->'$(Project_{1}_AspNetPhysicalPath)\\Bin\\%(DestinationSubDirectory)%(Filename)%(Extension)')",
 668                                                 copylocal_item, w_guid));
 669
 670                         // AspNetConfiguration, is config for the website project, useful
 671                         // for overriding from command line
 672                         StringBuilder cond = new StringBuilder ();
 673                         foreach (string config in webProjectInfo.AspNetConfigurations) {
 674                                 if (cond.Length > 0)
 675                                         cond.Append (" or ");
 676                                 cond.AppendFormat (" ('$(AspNetConfiguration)' == '{0}') ", config);
 677                         }
 678                         task.Condition = cond.ToString ();
 679
 680                         task = target.AddNewTask ("Message");
 681                         cond = new StringBuilder ();
 682                         foreach (string config in webProjectInfo.AspNetConfigurations) {
 683                                 if (cond.Length > 0)
 684                                         cond.Append (" and ");
 685                                 cond.AppendFormat (" ('$(AspNetConfiguration)' != '{0}') ", config);
 686                         }
 687                         task.Condition = cond.ToString ();
 688                         task.SetParameterValue ("Text", "Skipping as the '$(AspNetConfiguration)' configuration is " +
 689                                                 "not supported by this website project.");
 690                 }
 691
 692                 void AddWebsiteUnsupportedTarget (Project p, ProjectInfo webProjectInfo, List<ProjectInfo> depInfos,
 693                                 string buildTarget)
 694                 {
 695                         Target target = p.Targets.AddNewTarget (GetTargetNameForProject (webProjectInfo.Name, buildTarget));
 696                         target.DependsOnTargets = GetWebsiteDependsOnTarget (depInfos, buildTarget);
 697
 698                         BuildTask task = target.AddNewTask ("Message");
 699                         task.SetParameterValue ("Text", String.Format (
 700                                                 "Target '{0}' not support for website projects", buildTarget));
 701                 }
 702
 703                 string GetWebsiteDependsOnTarget (List<ProjectInfo> depInfos, string buildTarget)
 704                 {
 705                         StringBuilder deps = new StringBuilder ();
 706                         foreach (ProjectInfo pinfo in depInfos) {
 707                                 if (deps.Length > 0)
 708                                         deps.Append (";");
 709                                 deps.Append (GetTargetNameForProject (pinfo.Name, buildTarget));
 710                         }
 711                         deps.Append (";GetFrameworkPath");
 712                         return deps.ToString ();
 713                 }
 714
 715                 void AddGetFrameworkPathTarget (Project p)
 716                 {
 717                         Target t = p.Targets.AddNewTarget ("GetFrameworkPath");
 718                         BuildTask task = t.AddNewTask ("GetFrameworkPath");
 719                         task.AddOutputProperty ("Path", "TargetFrameworkPath");
 720                 }
 721
 722                 void AddValidateSolutionConfiguration (Project p)
 723                 {
 724                         Target t = p.Targets.AddNewTarget ("ValidateSolutionConfiguration");
 725                         BuildTask task = t.AddNewTask ("Warning");
 726                         task.SetParameterValue ("Text", "On windows, an environment variable 'Platform' is set to MCD sometimes, and this overrides the Platform property" +
 727                                                 " for xbuild, which could be an invalid Platform for this solution file. And so you are getting the following error." +
 728                                                 " You could override it by either setting the environment variable to nothing, as\n" +
 729                                                 "   set Platform=\n" +
 730                                                 "Or explicity specify its value on the command line, as\n" +
 731                                                 "   xbuild Foo.sln /p:Platform=Release");
 732                         task.Condition = "('$(CurrentSolutionConfigurationContents)' == '') and ('$(SkipInvalidConfigurations)' != 'true')" +
 733                                         " and '$(Platform)' == 'MCD' and '$(OS)' == 'Windows_NT'";
 734
 735                         task = t.AddNewTask ("Error");
 736                         task.SetParameterValue ("Text", "Invalid solution configuration and platform: \"$(Configuration)|$(Platform)\".");
 737                         task.Condition = "('$(CurrentSolutionConfigurationContents)' == '') and ('$(SkipInvalidConfigurations)' != 'true')";
 738                         task = t.AddNewTask ("Warning");
 739                         task.SetParameterValue ("Text", "Invalid solution configuration and platform: \"$(Configuration)|$(Platform)\".");
 740                         task.Condition = "('$(CurrentSolutionConfigurationContents)' == '') and ('$(SkipInvalidConfigurations)' == 'true')";
 741                         task = t.AddNewTask ("Message");
 742                         task.SetParameterValue ("Text", "Building solution configuration \"$(Configuration)|$(Platform)\".");
 743                         task.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 744                 }
 745
 746                 void AddProjectTargets (Project p, List<TargetInfo> solutionTargets, Dictionary<Guid, ProjectInfo> projectInfos)
 747                 {
 748                         foreach (KeyValuePair<Guid, ProjectInfo> projectInfo in projectInfos) {
 749                                 ProjectInfo project = projectInfo.Value;
 750                                 foreach (string buildTarget in buildTargets) {
 751                                         string target_name = GetTargetNameForProject (project.Name, buildTarget);
 752                                         Target target = p.Targets.AddNewTarget (target_name);
 753                                         target.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 754                                         if (project.Dependencies.Count > 0)
 755                                                 target.DependsOnTargets = String.Join (";",
 756                                                                 project.Dependencies.Values.Select (
 757                                                                         di => GetTargetNameForProject (di.Name, buildTarget)).ToArray ());
 758
 759                                         foreach (TargetInfo targetInfo in solutionTargets) {
 760                                                 BuildTask task = null;
 761                                                 TargetInfo projectTargetInfo;
 762                                                 if (!project.TargetMap.TryGetValue (targetInfo, out projectTargetInfo)) {
 763                                                         AddWarningForMissingProjectConfiguration (target, targetInfo.Configuration,
 764                                                                         targetInfo.Platform, project.Name);
 765                                                         continue;
 766                                                 }
 767                                                 if (projectTargetInfo.Build) {
 768                                                         task = target.AddNewTask ("MSBuild");
 769                                                         task.SetParameterValue ("Projects", project.FileName);
 770                                                         task.SetParameterValue ("ToolsVersion", "$(ProjectToolsVersion)");
 771
 772                                                         if (buildTarget != "Build")
 773                                                                 task.SetParameterValue ("Targets", buildTarget);
 774                                                         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));
 775                                                 } else {
 776                                                         task = target.AddNewTask ("Message");
 777                                                         task.SetParameterValue ("Text", string.Format ("Project \"{0}\" is disabled for solution configuration \"{1}|{2}\".", project.Name, targetInfo.Configuration, targetInfo.Platform));
 778                                                 }
 779                                                 task.Condition = string.Format (" ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ", targetInfo.Configuration, targetInfo.Platform);
 780                                         }
 781                                 }
 782                         }
 783                 }
 784
 785
 786                 string GetTargetNameForProject (string projectName, string buildTarget)
 787                 {
 788                         //FIXME: hack
 789                         projectName = projectName.Replace ("\\", "/").Replace (".", "_");
 790                         string target_name = projectName +
 791                                         (buildTarget == "Build" ? string.Empty : ":" + buildTarget);
 792
 793                         if (IsBuildTargetName (projectName))
 794                                 target_name = "Solution:" + target_name;
 795
 796                         return target_name;
 797                 }
 798
 799                 bool IsBuildTargetName (string name)
 800                 {
 801                         foreach (string tgt in buildTargets)
 802                                 if (name == tgt)
 803                                         return true;
 804                         return false;
 805                 }
 806
 807                 // returns number of levels
 808                 int AddBuildLevels (Project p, List<TargetInfo> solutionTargets, Dictionary<Guid, ProjectInfo> projectInfos,
 809                                 ref List<ProjectInfo>[] infosByLevel)
 810                 {
 811                         infosByLevel = TopologicalSort<ProjectInfo> (projectInfos.Values);
 812
 813                         foreach (TargetInfo targetInfo in solutionTargets) {
 814                                 BuildItemGroup big = p.AddNewItemGroup ();
 815                                 big.Condition = String.Format (" ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ",
 816                                                 targetInfo.Configuration, targetInfo.Platform);
 817
 818                                 //FIXME: every level has projects that can be built in parallel.
 819                                 //       levels are ordered on the basis of the dependency graph
 820
 821                                 for (int i = 0; i < infosByLevel.Length; i ++) {
 822                                         string build_level = String.Format ("BuildLevel{0}", i);
 823                                         string skip_level = String.Format ("SkipLevel{0}", i);
 824                                         string missing_level = String.Format ("MissingConfigLevel{0}", i);
 825
 826                                         foreach (ProjectInfo projectInfo in infosByLevel [i]) {
 827                                                 TargetInfo projectTargetInfo;
 828                                                 if (!projectInfo.TargetMap.TryGetValue (targetInfo, out projectTargetInfo)) {
 829                                                         // missing project config
 830                                                         big.AddNewItem (missing_level, projectInfo.Name);
 831                                                         continue;
 832                                                 }
 833
 834                                                 if (projectTargetInfo.Build) {
 835                                                         BuildItem item = big.AddNewItem (build_level, projectInfo.FileName);
 836                                                         item.SetMetadata ("Configuration", projectTargetInfo.Configuration);
 837                                                         item.SetMetadata ("Platform", projectTargetInfo.Platform);
 838                                                 } else {
 839                                                         // build disabled
 840                                                         big.AddNewItem (skip_level, projectInfo.Name);
 841                                                 }
 842                                         }
 843                                 }
 844                         }
 845
 846                         return infosByLevel.Length;
 847                 }
 848
 849                 void AddSolutionTargets (Project p, int num_levels, IEnumerable<ProjectInfo> websiteProjectInfos)
 850                 {
 851                         foreach (string buildTarget in buildTargets) {
 852                                 Target t = p.Targets.AddNewTarget (buildTarget);
 853                                 t.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 854
 855                                 BuildTask task = null;
 856                                 for (int i = 0; i < num_levels; i ++) {
 857                                         string level_str = String.Format ("BuildLevel{0}", i);
 858                                         task = t.AddNewTask ("MSBuild");
 859                                         task.SetParameterValue ("Condition", String.Format ("'@({0})' != ''", level_str));
 860                                         task.SetParameterValue ("Projects", String.Format ("@({0})", level_str));
 861                                         task.SetParameterValue ("ToolsVersion", "$(ProjectToolsVersion)");
 862                                         task.SetParameterValue ("Properties",
 863                                                 string.Format ("Configuration=%(Configuration); Platform=%(Platform); BuildingSolutionFile=true; CurrentSolutionConfigurationContents=$(CurrentSolutionConfigurationContents); SolutionDir=$(SolutionDir); SolutionExt=$(SolutionExt); SolutionFileName=$(SolutionFileName); SolutionName=$(SolutionName); SolutionPath=$(SolutionPath)"));
 864                                         if (buildTarget != "Build")
 865                                                 task.SetParameterValue ("Targets", buildTarget);
 866                                         //FIXME: change this to BuildInParallel=true, when parallel
 867                                         //       build support gets added
 868                                         task.SetParameterValue ("RunEachTargetSeparately", "true");
 869
 870                                         level_str = String.Format ("SkipLevel{0}", i);
 871                                         task = t.AddNewTask ("Message");
 872                                         task.Condition = String.Format ("'@({0})' != ''", level_str);
 873                                         task.SetParameterValue ("Text",
 874                                                 String.Format ("The project '%({0}.Identity)' is disabled for solution " +
 875                                                         "configuration '$(Configuration)|$(Platform)'.", level_str));
 876
 877                                         level_str = String.Format ("MissingConfigLevel{0}", i);
 878                                         task = t.AddNewTask ("Warning");
 879                                         task.Condition = String.Format ("'@({0})' != ''", level_str);
 880                                         task.SetParameterValue ("Text",
 881                                                 String.Format ("The project configuration for project '%({0}.Identity)' " +
 882                                                         "corresponding to the solution configuration " +
 883                                                         "'$(Configuration)|$(Platform)' was not found.", level_str));
 884                                 }
 885
 886                                 // "build" website projects also
 887                                 StringBuilder w_targets = new StringBuilder ();
 888                                 foreach (ProjectInfo info in websiteProjectInfos) {
 889                                         if (w_targets.Length > 0)
 890                                                 w_targets.Append (";");
 891                                         w_targets.Append (GetTargetNameForProject (info.Name, buildTarget));
 892                                 }
 893
 894                                 task = t.AddNewTask ("CallTarget");
 895                                 task.SetParameterValue ("Targets", w_targets.ToString ());
 896                                 task.SetParameterValue ("RunEachTargetSeparately", "true");
 897                         }
 898                 }
 899
 900                 // Sorts the ProjectInfo dependency graph, to obtain
 901                 // a series of build levels with projects. Projects
 902                 // in each level can be run parallel (no inter-dependency).
 903                 static List<T>[] TopologicalSort<T> (IEnumerable<T> items) where T: ProjectInfo
 904                 {
 905                         IList<T> allItems;
 906                         allItems = items as IList<T>;
 907                         if (allItems == null)
 908                                 allItems = new List<T> (items);
 909
 910                         bool[] inserted = new bool[allItems.Count];
 911                         bool[] triedToInsert = new bool[allItems.Count];
 912                         int[] levels = new int [allItems.Count];
 913
 914                         int maxdepth = 0;
 915                         for (int i = 0; i < allItems.Count; ++i) {
 916                                 int d = Insert<T> (i, allItems, levels, inserted, triedToInsert);
 917                                 if (d > maxdepth)
 918                                         maxdepth = d;
 919                         }
 920
 921                         // Separate out the project infos by build level
 922                         List<T>[] infosByLevel = new List<T>[maxdepth];
 923                         for (int i = 0; i < levels.Length; i ++) {
 924                                 int level = levels [i] - 1;
 925                                 if (infosByLevel [level] == null)
 926                                         infosByLevel [level] = new List<T> ();
 927
 928                                 infosByLevel [level].Add (allItems [i]);
 929                         }
 930
 931                         return infosByLevel;
 932                 }
 933
 934                 // returns level# for the project
 935                 static int Insert<T> (int index, IList<T> allItems, int[] levels, bool[] inserted, bool[] triedToInsert)
 936                         where T: ProjectInfo
 937                 {
 938                         if (inserted [index])
 939                                 return levels [index];
 940
 941                         if (triedToInsert[index])
 942                                 throw new InvalidOperationException (String.Format (
 943                                                 "Cyclic dependency involving project {0} found in the project dependency graph",
 944                                                 allItems [index].Name));
 945
 946                         triedToInsert[index] = true;
 947                         ProjectInfo insertItem = allItems[index];
 948
 949                         int maxdepth = 0;
 950                         foreach (ProjectInfo dependency in insertItem.Dependencies.Values) {
 951                                 for (int j = 0; j < allItems.Count; ++j) {
 952                                         ProjectInfo checkItem = allItems [j];
 953                                         if (dependency.FileName == checkItem.FileName) {
 954                                                 int d = Insert (j, allItems, levels, inserted, triedToInsert);
 955                                                 maxdepth = d > maxdepth ? d : maxdepth;
 956                                                 break;
 957                                         }
 958                                 }
 959                         }
 960                         levels [index] = maxdepth + 1;
 961                         inserted [index] = true;
 962
 963                         return levels [index];
 964                 }
 965
 966                 public static IEnumerable<string> GetAllProjectFileNames (string solutionFile)
 967                 {
 968                         StreamReader reader = new StreamReader (solutionFile);
 969                         string line = reader.ReadToEnd ();
 970                         line = line.Replace ("\r\n", "\n");
 971                         string soln_dir = Path.GetDirectoryName (solutionFile);
 972
 973                         Match m = projectRegex.Match (line);
 974                         while (m.Success) {
 975                                 if (String.Compare (m.Groups [1].Value, solutionFolderGuid,
 976                                                 StringComparison.InvariantCultureIgnoreCase) != 0)
 977                                         yield return Path.Combine (soln_dir, m.Groups [3].Value).Replace ("\\", "/");
 978
 979                                 m = m.NextMatch ();
 980                         }
 981                 }
 982         }
 983 }
 984
 985 #endif