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                         EmitBeforeImports (p, file);
 118
 119                         AddGeneralSettings (file, p);
 120
 121                         StreamReader reader = new StreamReader (file);
 122                         string slnVersion = GetSlnFileVersion (reader);
 123                         if (slnVersion == "11.00")
 124                                 p.DefaultToolsVersion = "4.0";
 125                         else if (slnVersion == "10.00")
 126                                 p.DefaultToolsVersion = "3.5";
 127                         else
 128                                 p.DefaultToolsVersion = "2.0";
 129
 130                         string line = reader.ReadToEnd ();
 131                         line = line.Replace ("\r\n", "\n");
 132                         string solutionDir = Path.GetDirectoryName (file);
 133
 134                         List<TargetInfo> solutionTargets = new List<TargetInfo> ();
 135                         Dictionary<Guid, ProjectInfo> projectInfos = new Dictionary<Guid, ProjectInfo> ();
 136                         Dictionary<Guid, ProjectInfo> websiteProjectInfos = new Dictionary<Guid, ProjectInfo> ();
 137                         List<ProjectInfo>[] infosByLevel = null;
 138                         Dictionary<Guid, ProjectInfo> unsupportedProjectInfos = new Dictionary<Guid, ProjectInfo> ();
 139
 140                         Match m = projectRegex.Match (line);
 141                         while (m.Success) {
 142                                 ProjectInfo projectInfo = new ProjectInfo (m.Groups[2].Value,
 143                                                                 Path.GetFullPath (Path.Combine (solutionDir,
 144                                                                         m.Groups [3].Value.Replace ('\\', Path.DirectorySeparatorChar))));
 145                                 if (String.Compare (m.Groups [1].Value, solutionFolderGuid,
 146                                                 StringComparison.InvariantCultureIgnoreCase) == 0) {
 147                                         // Ignore solution folders
 148                                         m = m.NextMatch ();
 149                                         continue;
 150                                 }
 151
 152                                 projectInfo.Guid = new Guid (m.Groups [4].Value);
 153
 154                                 if (String.Compare (m.Groups [1].Value, vcprojGuid,
 155                                                 StringComparison.InvariantCultureIgnoreCase) == 0) {
 156                                         // Ignore vcproj
 157                                         RaiseWarning (0, string.Format("Ignoring vcproj '{0}'.", projectInfo.Name));
 158
 159                                         unsupportedProjectInfos [projectInfo.Guid] = projectInfo;
 160                                         m = m.NextMatch ();
 161                                         continue;
 162                                 }
 163
 164                                 if (String.Compare (m.Groups [1].Value, websiteProjectGuid,
 165                                                 StringComparison.InvariantCultureIgnoreCase) == 0)
 166                                         websiteProjectInfos.Add (new Guid (m.Groups[4].Value), projectInfo);
 167                                 else
 168                                         projectInfos.Add (projectInfo.Guid, projectInfo);
 169
 170                                 Match projectSectionMatch = projectDependenciesRegex.Match (m.Groups[6].Value);
 171                                 while (projectSectionMatch.Success) {
 172                                         string section_name = projectSectionMatch.Groups [1].Value;
 173                                         if (String.Compare (section_name, "ProjectDependencies") == 0) {
 174                                                 Match projectDependencyMatch = projectDependencyRegex.Match (projectSectionMatch.Value);
 175                                                 while (projectDependencyMatch.Success) {
 176                                                         // we might not have projectInfo available right now, so
 177                                                         // set it to null, and fill it in later
 178                                                         projectInfo.Dependencies [new Guid (projectDependencyMatch.Groups[1].Value)] = null;
 179                                                         projectDependencyMatch = projectDependencyMatch.NextMatch ();
 180                                                 }
 181                                         } else {
 182                                                 ProjectSection section = new ProjectSection (section_name);
 183                                                 Match propertiesMatch = projectSectionPropertiesRegex.Match (
 184                                                                         projectSectionMatch.Groups [2].Value);
 185                                                 while (propertiesMatch.Success) {
 186                                                         section.Properties [propertiesMatch.Groups ["name"].Value] =
 187                                                                 propertiesMatch.Groups ["value"].Value;
 188
 189                                                         propertiesMatch = propertiesMatch.NextMatch ();
 190                                                 }
 191
 192                                                 projectInfo.ProjectSections [section_name] = section;
 193                                         }
 194                                         projectSectionMatch = projectSectionMatch.NextMatch ();
 195                                 }
 196                                 m = m.NextMatch ();
 197                         }
 198
 199                         foreach (ProjectInfo projectInfo in projectInfos.Values) {
 200                                 string filename = projectInfo.FileName;
 201                                 string projectDir = Path.GetDirectoryName (filename);
 202
 203                                 if (!File.Exists (filename)) {
 204                                         RaiseWarning (0, String.Format ("Project file {0} referenced in the solution file, " +
 205                                                                 "not found. Ignoring.", filename));
 206                                         continue;
 207                                 }
 208
 209                                 Project currentProject = p.ParentEngine.CreateNewProject ();
 210                                 try {
 211                                         currentProject.Load (filename, ProjectLoadSettings.IgnoreMissingImports);
 212                                 } catch (InvalidProjectFileException e) {
 213                                         RaiseWarning (0, e.Message);
 214                                         continue;
 215                                 }
 216
 217                                 foreach (BuildItem bi in currentProject.GetEvaluatedItemsByName ("ProjectReference")) {
 218                                         ProjectInfo info = null;
 219                                         string projectReferenceGuid = bi.GetEvaluatedMetadata ("Project");
 220                                         bool hasGuid = !String.IsNullOrEmpty (projectReferenceGuid);
 221
 222                                         // try to resolve the ProjectReference by GUID
 223                                         // and fallback to project filename
 224
 225                                         if (hasGuid) {
 226                                                 Guid guid = new Guid (projectReferenceGuid);
 227                                                 projectInfos.TryGetValue (guid, out info);
 228                                                 if (info == null && unsupportedProjectInfos.TryGetValue (guid, out info)) {
 229                                                         RaiseWarning (0, String.Format (
 230                                                                         "{0}: ProjectReference '{1}' is of an unsupported type. Ignoring.",
 231                                                                         filename, bi.Include));
 232                                                         continue;
 233                                                 }
 234                                         }
 235
 236                                         if (info == null || !hasGuid) {
 237                                                 // Project not found by guid or guid not available
 238                                                 // Try to find by project file
 239
 240                                                 string fullpath = Path.GetFullPath (Path.Combine (projectDir, bi.Include.Replace ('\\', Path.DirectorySeparatorChar)));
 241                                                 info = projectInfos.Values.FirstOrDefault (pi => pi.FileName == fullpath);
 242
 243                                                 if (info == null) {
 244                                                         if (unsupportedProjectInfos.Values.Any (pi => pi.FileName == fullpath))
 245                                                                 RaiseWarning (0, String.Format (
 246                                                                                 "{0}: ProjectReference '{1}' is of an unsupported type. Ignoring.",
 247                                                                                 filename, bi.Include));
 248                                                         else
 249                                                                 RaiseWarning (0, String.Format (
 250                                                                                 "{0}: ProjectReference '{1}' not found, neither by guid '{2}' nor by project file name '{3}'.",
 251                                                                                 filename, bi.Include, projectReferenceGuid.Replace ("{", "").Replace ("}", ""), fullpath));
 252                                                 }
 253
 254                                         }
 255
 256                                         if (info != null)
 257                                                 projectInfo.Dependencies [info.Guid] = info;
 258                                 }
 259                         }
 260
 261                         // fill in the project info for deps found in the .sln file
 262                         foreach (ProjectInfo projectInfo in projectInfos.Values) {
 263                                 List<Guid> missingInfos = new List<Guid> ();
 264                                 foreach (KeyValuePair<Guid, ProjectInfo> dependency in projectInfo.Dependencies) {
 265                                         if (dependency.Value == null)
 266                                                 missingInfos.Add (dependency.Key);
 267                                 }
 268
 269                                 foreach (Guid guid in missingInfos) {
 270                                         ProjectInfo info;
 271                                         if (projectInfos.TryGetValue (guid, out info))
 272                                                 projectInfo.Dependencies [guid] = info;
 273                                         else
 274                                                 projectInfo.Dependencies.Remove (guid);
 275                                 }
 276                         }
 277
 278                         Match globalMatch = globalRegex.Match (line);
 279                         Match globalSectionMatch = globalSectionRegex.Match (globalMatch.Groups[1].Value);
 280                         while (globalSectionMatch.Success) {
 281                                 string sectionType = globalSectionMatch.Groups[1].Value;
 282                                 switch (sectionType) {
 283                                         case "SolutionConfigurationPlatforms":
 284                                                 ParseSolutionConfigurationPlatforms (globalSectionMatch.Groups[2].Value, solutionTargets);
 285                                                 break;
 286                                         case "ProjectConfigurationPlatforms":
 287                                                 ParseProjectConfigurationPlatforms (globalSectionMatch.Groups[2].Value,
 288                                                                 projectInfos, websiteProjectInfos);
 289                                                 break;
 290                                         case "SolutionProperties":
 291                                                 ParseSolutionProperties (globalSectionMatch.Groups[2].Value);
 292                                                 break;
 293                                         case "NestedProjects":
 294                                                 break;
 295                                         case "MonoDevelopProperties":
 296                                                 break;
 297                                         default:
 298                                                 RaiseWarning (0, string.Format("Don't know how to handle GlobalSection {0}, Ignoring.", sectionType));
 299                                                 break;
 300                                 }
 301                                 globalSectionMatch = globalSectionMatch.NextMatch ();
 302                         }
 303
 304                         int num_levels = AddBuildLevels (p, solutionTargets, projectInfos, ref infosByLevel);
 305
 306                         AddCurrentSolutionConfigurationContents (p, solutionTargets, projectInfos, websiteProjectInfos);
 307                         AddProjectReferences (p, projectInfos);
 308                         AddWebsiteProperties (p, websiteProjectInfos, projectInfos);
 309                         AddValidateSolutionConfiguration (p);
 310
 311                         EmitAfterImports (p, file);
 312
 313                         AddGetFrameworkPathTarget (p);
 314                         AddWebsiteTargets (p, websiteProjectInfos, projectInfos, infosByLevel, solutionTargets);
 315                         AddProjectTargets (p, solutionTargets, projectInfos);
 316                         AddSolutionTargets (p, num_levels, websiteProjectInfos.Values);
 317                 }
 318
 319                 string GetSlnFileVersion (StreamReader reader)
 320                 {
 321                         string strInput = null;
 322                         Match match;
 323
 324                         strInput = reader.ReadLine();
 325                         if (strInput == null)
 326                                 return null;
 327
 328                         match = slnVersionRegex.Match(strInput);
 329                         if (!match.Success) {
 330                                 strInput = reader.ReadLine();
 331                                 if (strInput == null)
 332                                         return null;
 333                                 match = slnVersionRegex.Match (strInput);
 334                         }
 335
 336                         if (match.Success)
 337                                 return match.Groups[1].Value;
 338
 339                         return null;
 340                 }
 341
 342                 void EmitBeforeImports (Project p, string file)
 343                 {
 344 #if NET_4_0
 345                         p.AddNewImport ("$(MSBuildExtensionsPath)\\$(MSBuildToolsVersion)\\SolutionFile\\ImportBefore\\*",
 346                                         "'$(ImportByWildcardBeforeSolution)' != 'false' and " +
 347                                         "Exists('$(MSBuildExtensionsPath)\\$(MSBuildToolsVersion)\\SolutionFile\\ImportBefore')");
 348 #endif
 349
 350                         string before_filename = Path.Combine (Path.GetDirectoryName (file), "before." + Path.GetFileName (file) + ".targets");
 351                         p.AddNewImport (before_filename, String.Format ("Exists ('{0}')", before_filename));
 352                 }
 353
 354                 void EmitAfterImports (Project p, string file)
 355                 {
 356 #if NET_4_0
 357                         p.AddNewImport ("$(MSBuildExtensionsPath)\\$(MSBuildToolsVersion)\\SolutionFile\\ImportAfter\\*",
 358                                         "'$(ImportByWildcardAfterSolution)' != 'false' and " +
 359                                         "Exists('$(MSBuildExtensionsPath)\\$(MSBuildToolsVersion)\\SolutionFile\\ImportAfter')");
 360 #endif
 361
 362                         string after_filename = Path.Combine (Path.GetDirectoryName (file), "after." + Path.GetFileName (file) + ".targets");
 363                         p.AddNewImport (after_filename, String.Format ("Exists ('{0}')", after_filename));
 364                 }
 365
 366                 void AddGeneralSettings (string solutionFile, Project p)
 367                 {
 368                         p.DefaultTargets = "Build";
 369                         p.InitialTargets = "ValidateSolutionConfiguration";
 370                         p.AddNewUsingTaskFromAssemblyName ("CreateTemporaryVCProject", "Microsoft.Build.Tasks, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a");
 371                         p.AddNewUsingTaskFromAssemblyName ("ResolveVCProjectOutput", "Microsoft.Build.Tasks, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a");
 372
 373                         string solutionFilePath = Path.GetFullPath (solutionFile);
 374                         BuildPropertyGroup solutionPropertyGroup = p.AddNewPropertyGroup (true);
 375                         solutionPropertyGroup.AddNewProperty ("SolutionDir", Path.GetDirectoryName (solutionFilePath) + Path.DirectorySeparatorChar);
 376                         solutionPropertyGroup.AddNewProperty ("SolutionExt", Path.GetExtension (solutionFile));
 377                         solutionPropertyGroup.AddNewProperty ("SolutionFileName", Path.GetFileName (solutionFile));
 378                         solutionPropertyGroup.AddNewProperty ("SolutionName", Path.GetFileNameWithoutExtension (solutionFile));
 379                         solutionPropertyGroup.AddNewProperty ("SolutionPath", solutionFilePath);
 380                 }
 381
 382                 void ParseSolutionConfigurationPlatforms (string section, List<TargetInfo> solutionTargets)
 383                 {
 384                         Match solutionConfigurationPlatform = solutionConfigurationRegex.Match (section);
 385                         while (solutionConfigurationPlatform.Success) {
 386                                 string solutionConfiguration = solutionConfigurationPlatform.Groups[1].Value;
 387                                 string solutionPlatform = solutionConfigurationPlatform.Groups[2].Value;
 388                                 solutionTargets.Add (new TargetInfo (solutionConfiguration, solutionPlatform));
 389                                 solutionConfigurationPlatform = solutionConfigurationPlatform.NextMatch ();
 390                         }
 391                 }
 392
 393                 // ignores the website projects, in the websiteProjectInfos
 394                 void ParseProjectConfigurationPlatforms (string section, Dictionary<Guid, ProjectInfo> projectInfos,
 395                                 Dictionary<Guid, ProjectInfo> websiteProjectInfos)
 396                 {
 397                         List<Guid> missingGuids = new List<Guid> ();
 398                         Match projectConfigurationPlatform = projectConfigurationActiveCfgRegex.Match (section);
 399                         while (projectConfigurationPlatform.Success) {
 400                                 Guid guid = new Guid (projectConfigurationPlatform.Groups[1].Value);
 401                                 ProjectInfo projectInfo;
 402                                 if (!projectInfos.TryGetValue (guid, out projectInfo)) {
 403                                         if (!missingGuids.Contains (guid)) {
 404                                                 if (!websiteProjectInfos.ContainsKey (guid))
 405                                                         // ignore website projects
 406                                                         RaiseWarning (0, string.Format("Failed to find project {0}", guid));
 407                                                 missingGuids.Add (guid);
 408                                         }
 409                                         projectConfigurationPlatform = projectConfigurationPlatform.NextMatch ();
 410                                         continue;
 411                                 }
 412                                 string solConf = projectConfigurationPlatform.Groups[2].Value;
 413                                 string solPlat = projectConfigurationPlatform.Groups[3].Value;
 414                                 string projConf = projectConfigurationPlatform.Groups[4].Value;
 415                                 string projPlat = projectConfigurationPlatform.Groups[5].Value;
 416                                 // hack, what are they doing here?
 417                                 if (projPlat == "Any CPU")
 418                                         projPlat = "AnyCPU";
 419                                 projectInfo.TargetMap.Add (new TargetInfo (solConf, solPlat), new TargetInfo (projConf, projPlat));
 420                                 projectConfigurationPlatform = projectConfigurationPlatform.NextMatch ();
 421                         }
 422                         Match projectConfigurationPlatformBuild = projectConfigurationBuildRegex.Match (section);
 423                         while (projectConfigurationPlatformBuild.Success) {
 424                                 Guid guid = new Guid (projectConfigurationPlatformBuild.Groups[1].Value);
 425                                 ProjectInfo projectInfo;
 426                                 if (!projectInfos.TryGetValue (guid, out projectInfo)) {
 427                                         if (!missingGuids.Contains (guid)) {
 428                                                 RaiseWarning (0, string.Format("Failed to find project {0}", guid));
 429                                                 missingGuids.Add (guid);
 430                                         }
 431                                         projectConfigurationPlatformBuild = projectConfigurationPlatformBuild.NextMatch ();
 432                                         continue;
 433                                 }
 434                                 string solConf = projectConfigurationPlatformBuild.Groups[2].Value;
 435                                 string solPlat = projectConfigurationPlatformBuild.Groups[3].Value;
 436                                 string projConf = projectConfigurationPlatformBuild.Groups[4].Value;
 437                                 string projPlat = projectConfigurationPlatformBuild.Groups[5].Value;
 438                                 // hack, what are they doing here?
 439                                 if (projPlat == "Any CPU")
 440                                         projPlat = "AnyCPU";
 441                                 projectInfo.TargetMap[new TargetInfo (solConf, solPlat)] = new TargetInfo (projConf, projPlat, true);
 442                                 projectConfigurationPlatformBuild = projectConfigurationPlatformBuild.NextMatch ();
 443                         }
 444                 }
 445
 446                 void ParseSolutionProperties (string section)
 447                 {
 448                 }
 449
 450                 void AddCurrentSolutionConfigurationContents (Project p, List<TargetInfo> solutionTargets,
 451                                 Dictionary<Guid, ProjectInfo> projectInfos,
 452                                 Dictionary<Guid, ProjectInfo> websiteProjectInfos)
 453                 {
 454                         TargetInfo default_target_info = new TargetInfo ("Debug", "Any CPU");
 455                         if (solutionTargets.Count > 0) {
 456                                 bool found = false;
 457                                 foreach (TargetInfo tinfo in solutionTargets) {
 458                                         if (String.Compare (tinfo.Platform, "Mixed Platforms") == 0) {
 459                                                 default_target_info = tinfo;
 460                                                 found = true;
 461                                                 break;
 462                                         }
 463                                 }
 464
 465                                 if (!found)
 466                                         default_target_info = solutionTargets [0];
 467                         }
 468
 469                         AddDefaultSolutionConfiguration (p, default_target_info);
 470
 471                         foreach (TargetInfo solutionTarget in solutionTargets) {
 472                                 BuildPropertyGroup platformPropertyGroup = p.AddNewPropertyGroup (false);
 473                                 platformPropertyGroup.Condition = string.Format (
 474                                         " ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ",
 475                                         solutionTarget.Configuration,
 476                                         solutionTarget.Platform
 477                                         );
 478
 479                                 StringBuilder solutionConfigurationContents = new StringBuilder ();
 480                                 solutionConfigurationContents.Append ("<SolutionConfiguration xmlns=\"\">");
 481                                 foreach (KeyValuePair<Guid, ProjectInfo> projectInfo in projectInfos) {
 482                                         AddProjectConfigurationItems (projectInfo.Key, projectInfo.Value, solutionTarget, solutionConfigurationContents);
 483                                 }
 484                                 solutionConfigurationContents.Append ("</SolutionConfiguration>");
 485
 486                                 platformPropertyGroup.AddNewProperty ("CurrentSolutionConfigurationContents",
 487                                                 solutionConfigurationContents.ToString ());
 488                         }
 489                 }
 490
 491                 void AddProjectReferences (Project p, Dictionary<Guid, ProjectInfo> projectInfos)
 492                 {
 493                         BuildItemGroup big = p.AddNewItemGroup ();
 494                         foreach (KeyValuePair<Guid, ProjectInfo> pair in projectInfos)
 495                                 big.AddNewItem ("ProjectReference", pair.Value.FileName);
 496                 }
 497
 498                 void AddProjectConfigurationItems (Guid guid, ProjectInfo projectInfo, TargetInfo solutionTarget,
 499                                 StringBuilder solutionConfigurationContents)
 500                 {
 501                         foreach (KeyValuePair<TargetInfo, TargetInfo> targetInfo in projectInfo.TargetMap) {
 502                                 if (solutionTarget.Configuration == targetInfo.Key.Configuration &&
 503                                                 solutionTarget.Platform == targetInfo.Key.Platform) {
 504                                         solutionConfigurationContents.AppendFormat (
 505                                                         "<ProjectConfiguration Project=\"{0}\">{1}|{2}</ProjectConfiguration>",
 506                                         guid.ToString ("B").ToUpper (), targetInfo.Value.Configuration, targetInfo.Value.Platform);
 507                                 }
 508                         }
 509                 }
 510
 511                 void AddDefaultSolutionConfiguration (Project p, TargetInfo target)
 512                 {
 513                         BuildPropertyGroup configurationPropertyGroup = p.AddNewPropertyGroup (true);
 514                         configurationPropertyGroup.Condition = " '$(Configuration)' == '' ";
 515                         configurationPropertyGroup.AddNewProperty ("Configuration", target.Configuration);
 516
 517                         BuildPropertyGroup platformPropertyGroup = p.AddNewPropertyGroup (true);
 518                         platformPropertyGroup.Condition = " '$(Platform)' == '' ";
 519                         platformPropertyGroup.AddNewProperty ("Platform", target.Platform);
 520
 521                         // emit default for AspNetConfiguration also
 522                         BuildPropertyGroup aspNetConfigurationPropertyGroup = p.AddNewPropertyGroup (true);
 523                         aspNetConfigurationPropertyGroup.Condition = " ('$(AspNetConfiguration)' == '') ";
 524                         aspNetConfigurationPropertyGroup.AddNewProperty ("AspNetConfiguration", "$(Configuration)");
 525                 }
 526
 527                 void AddWarningForMissingProjectConfiguration (Target target, string slnConfig, string slnPlatform, string projectName)
 528                 {
 529                         BuildTask task = target.AddNewTask ("Warning");
 530                         task.SetParameterValue ("Text",
 531                                         String.Format ("The project configuration for project '{0}' corresponding " +
 532                                                 "to the solution configuration '{1}|{2}' was not found in the solution file.",
 533                                                 projectName, slnConfig, slnPlatform));
 534                         task.Condition = String.Format ("('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}')",
 535                                                 slnConfig, slnPlatform);
 536
 537                 }
 538
 539                 // Website project methods
 540
 541                 void AddWebsiteProperties (Project p, Dictionary<Guid, ProjectInfo> websiteProjectInfos,
 542                                 Dictionary<Guid, ProjectInfo> projectInfos)
 543                 {
 544                         var propertyGroupByConfig = new Dictionary<string, BuildPropertyGroup> ();
 545                         foreach (KeyValuePair<Guid, ProjectInfo> infoPair in websiteProjectInfos) {
 546                                 ProjectInfo info = infoPair.Value;
 547                                 string projectGuid = infoPair.Key.ToString ();
 548
 549                                 ProjectSection section;
 550                                 if (!info.ProjectSections.TryGetValue ("WebsiteProperties", out section)) {
 551                                         RaiseWarning (0, String.Format ("Website project '{0}' does not have the required project section: WebsiteProperties. Ignoring project.", info.Name));
 552                                         return;
 553                                 }
 554
 555                                 //parse project references
 556                                 string [] ref_guids = null;
 557                                 string references;
 558                                 if (section.Properties.TryGetValue ("ProjectReferences", out references)) {
 559                                         ref_guids = references.Split (new char [] {';'}, StringSplitOptions.RemoveEmptyEntries);
 560                                         for (int i = 0; i < ref_guids.Length; i ++) {
 561                                                 // "{guid}|foo.dll"
 562                                                 ref_guids [i] = ref_guids [i].Split ('|') [0];
 563
 564                                                 Guid r_guid = new Guid (ref_guids [i]);
 565                                                 ProjectInfo ref_info;
 566                                                 if (projectInfos.TryGetValue (r_guid, out ref_info))
 567                                                         // ignore if not found
 568                                                         info.Dependencies [r_guid] = ref_info;
 569                                         }
 570                                 }
 571
 572                                 foreach (KeyValuePair<string, string> pair in section.Properties) {
 573                                         //looking for -- ConfigName.AspNetCompiler.PropName
 574                                         string [] parts = pair.Key.Split ('.');
 575                                         if (parts.Length != 3 || String.Compare (parts [1], "AspNetCompiler") != 0)
 576                                                 continue;
 577
 578                                         string config = parts [0];
 579                                         string propertyName = parts [2];
 580
 581                                         BuildPropertyGroup bpg;
 582                                         if (!propertyGroupByConfig.TryGetValue (config, out bpg)) {
 583                                                 bpg = p.AddNewPropertyGroup (true);
 584                                                 bpg.Condition = String.Format (" '$(AspNetConfiguration)' == '{0}' ", config);
 585                                                 propertyGroupByConfig [config] = bpg;
 586                                         }
 587
 588                                         bpg.AddNewProperty (String.Format ("Project_{0}_AspNet{1}", projectGuid, propertyName),
 589                                                                 pair.Value);
 590
 591                                         if (!info.AspNetConfigurations.Contains (config))
 592                                                 info.AspNetConfigurations.Add (config);
 593                                 }
 594                         }
 595                 }
 596
 597                 // For WebSite projects
 598                 // The main "Build" target:
 599                 //      1. builds all non-website projects
 600                 //      2. calls target for website project
 601                 //              - gets target path for the referenced projects
 602                 //              - Resolves dependencies, satellites etc for the
 603                 //                referenced project assemblies, and copies them
 604                 //                to bin/ folder
 605                 void AddWebsiteTargets (Project p, Dictionary<Guid, ProjectInfo> websiteProjectInfos,
 606                                 Dictionary<Guid, ProjectInfo> projectInfos, List<ProjectInfo>[] infosByLevel,
 607                                 List<TargetInfo> solutionTargets)
 608                 {
 609                         foreach (ProjectInfo w_info in websiteProjectInfos.Values) {
 610                                 // gets a linear list of dependencies
 611                                 List<ProjectInfo> depInfos = new List<ProjectInfo> ();
 612                                 foreach (List<ProjectInfo> pinfos in infosByLevel) {
 613                                         foreach (ProjectInfo pinfo in pinfos)
 614                                                 if (w_info.Dependencies.ContainsKey (pinfo.Guid))
 615                                                         depInfos.Add (pinfo);
 616                                 }
 617
 618                                 foreach (string buildTarget in new string [] {"Build", "Rebuild"})
 619                                         AddWebsiteTarget (p, w_info, projectInfos, depInfos, solutionTargets, buildTarget);
 620
 621                                 // clean/publish are not supported for website projects
 622                                 foreach (string buildTarget in new string [] {"Clean", "Publish"})
 623                                         AddWebsiteUnsupportedTarget (p, w_info, depInfos, buildTarget);
 624                         }
 625                 }
 626
 627                 void AddWebsiteTarget (Project p, ProjectInfo webProjectInfo,
 628                                 Dictionary<Guid, ProjectInfo> projectInfos, List<ProjectInfo> depInfos,
 629                                 List<TargetInfo> solutionTargets, string buildTarget)
 630                 {
 631                         string w_guid = webProjectInfo.Guid.ToString ().ToUpper ();
 632
 633                         Target target = p.Targets.AddNewTarget (GetTargetNameForProject (webProjectInfo.Name, buildTarget));
 634                         target.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 635                         target.DependsOnTargets = GetWebsiteDependsOnTarget (depInfos, buildTarget);
 636
 637                         // this item collects all the references
 638                         string final_ref_item = String.Format ("Project_{0}_References{1}", w_guid,
 639                                                         buildTarget != "Build" ? "_" + buildTarget : String.Empty);
 640
 641                         foreach (TargetInfo targetInfo in solutionTargets) {
 642                                 int ref_num = 0;
 643                                 foreach (ProjectInfo depInfo in depInfos) {
 644                                         TargetInfo projectTargetInfo;
 645                                         if (!depInfo.TargetMap.TryGetValue (targetInfo, out projectTargetInfo))
 646                                                 // Ignore, no config, so no target path
 647                                                 continue;
 648
 649                                         // GetTargetPath from the referenced project
 650                                         AddWebsiteMSBuildTaskForReference (target, depInfo, projectTargetInfo, targetInfo,
 651                                                         final_ref_item, ref_num);
 652                                         ref_num ++;
 653                                 }
 654                         }
 655
 656                         // resolve the references
 657                         AddWebsiteResolveAndCopyReferencesTasks (target, webProjectInfo, final_ref_item, w_guid);
 658                 }
 659
 660                 // emits the MSBuild task to GetTargetPath for the referenced project
 661                 void AddWebsiteMSBuildTaskForReference (Target target, ProjectInfo depInfo, TargetInfo projectTargetInfo,
 662                                 TargetInfo solutionTargetInfo, string final_ref_item, int ref_num)
 663                 {
 664                         BuildTask task = target.AddNewTask ("MSBuild");
 665                         task.SetParameterValue ("Projects", depInfo.FileName);
 666                         task.SetParameterValue ("Targets", "GetTargetPath");
 667
 668                         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));
 669                         task.Condition = string.Format (" ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ", solutionTargetInfo.Configuration, solutionTargetInfo.Platform);
 670
 671                         string ref_item = String.Format ("{0}_{1}",
 672                                                 final_ref_item, ref_num);
 673
 674                         task.AddOutputItem ("TargetOutputs", ref_item);
 675
 676                         task = target.AddNewTask ("CreateItem");
 677                         task.SetParameterValue ("Include", String.Format ("@({0})", ref_item));
 678                         task.SetParameterValue ("AdditionalMetadata", String.Format ("Guid={{{0}}}",
 679                                                 depInfo.Guid.ToString ().ToUpper ()));
 680                         task.AddOutputItem ("Include", final_ref_item);
 681                 }
 682
 683                 void AddWebsiteResolveAndCopyReferencesTasks (Target target, ProjectInfo webProjectInfo,
 684                                 string final_ref_item, string w_guid)
 685                 {
 686                         BuildTask task = target.AddNewTask ("ResolveAssemblyReference");
 687                         task.SetParameterValue ("Assemblies", String.Format ("@({0}->'%(FullPath)')", final_ref_item));
 688                         task.SetParameterValue ("TargetFrameworkDirectories", "$(TargetFrameworkPath)");
 689                         task.SetParameterValue ("SearchPaths", "{RawFileName};{TargetFrameworkDirectory};{GAC}");
 690                         task.SetParameterValue ("FindDependencies", "true");
 691                         task.SetParameterValue ("FindSatellites", "true");
 692                         task.SetParameterValue ("FindRelatedFiles", "true");
 693                         task.Condition = String.Format ("Exists ('%({0}.Identity)')", final_ref_item);
 694
 695                         string copylocal_item = String.Format ("{0}_CopyLocalFiles", final_ref_item);
 696                         task.AddOutputItem ("CopyLocalFiles", copylocal_item);
 697
 698                         // Copy the references
 699                         task = target.AddNewTask ("Copy");
 700                         task.SetParameterValue ("SourceFiles", String.Format ("@({0})", copylocal_item));
 701                         task.SetParameterValue ("DestinationFiles", String.Format (
 702                                                 "@({0}->'$(Project_{1}_AspNetPhysicalPath)\\Bin\\%(DestinationSubDirectory)%(Filename)%(Extension)')",
 703                                                 copylocal_item, w_guid));
 704
 705                         // AspNetConfiguration, is config for the website project, useful
 706                         // for overriding from command line
 707                         StringBuilder cond = new StringBuilder ();
 708                         foreach (string config in webProjectInfo.AspNetConfigurations) {
 709                                 if (cond.Length > 0)
 710                                         cond.Append (" or ");
 711                                 cond.AppendFormat (" ('$(AspNetConfiguration)' == '{0}') ", config);
 712                         }
 713                         task.Condition = cond.ToString ();
 714
 715                         task = target.AddNewTask ("Message");
 716                         cond = new StringBuilder ();
 717                         foreach (string config in webProjectInfo.AspNetConfigurations) {
 718                                 if (cond.Length > 0)
 719                                         cond.Append (" and ");
 720                                 cond.AppendFormat (" ('$(AspNetConfiguration)' != '{0}') ", config);
 721                         }
 722                         task.Condition = cond.ToString ();
 723                         task.SetParameterValue ("Text", "Skipping as the '$(AspNetConfiguration)' configuration is " +
 724                                                 "not supported by this website project.");
 725                 }
 726
 727                 void AddWebsiteUnsupportedTarget (Project p, ProjectInfo webProjectInfo, List<ProjectInfo> depInfos,
 728                                 string buildTarget)
 729                 {
 730                         Target target = p.Targets.AddNewTarget (GetTargetNameForProject (webProjectInfo.Name, buildTarget));
 731                         target.DependsOnTargets = GetWebsiteDependsOnTarget (depInfos, buildTarget);
 732
 733                         BuildTask task = target.AddNewTask ("Message");
 734                         task.SetParameterValue ("Text", String.Format (
 735                                                 "Target '{0}' not support for website projects", buildTarget));
 736                 }
 737
 738                 string GetWebsiteDependsOnTarget (List<ProjectInfo> depInfos, string buildTarget)
 739                 {
 740                         StringBuilder deps = new StringBuilder ();
 741                         foreach (ProjectInfo pinfo in depInfos) {
 742                                 if (deps.Length > 0)
 743                                         deps.Append (";");
 744                                 deps.Append (GetTargetNameForProject (pinfo.Name, buildTarget));
 745                         }
 746                         deps.Append (";GetFrameworkPath");
 747                         return deps.ToString ();
 748                 }
 749
 750                 void AddGetFrameworkPathTarget (Project p)
 751                 {
 752                         Target t = p.Targets.AddNewTarget ("GetFrameworkPath");
 753                         BuildTask task = t.AddNewTask ("GetFrameworkPath");
 754                         task.AddOutputProperty ("Path", "TargetFrameworkPath");
 755                 }
 756
 757                 void AddValidateSolutionConfiguration (Project p)
 758                 {
 759                         Target t = p.Targets.AddNewTarget ("ValidateSolutionConfiguration");
 760                         BuildTask task = t.AddNewTask ("Warning");
 761                         task.SetParameterValue ("Text", "On windows, an environment variable 'Platform' is set to MCD sometimes, and this overrides the Platform property" +
 762                                                 " for xbuild, which could be an invalid Platform for this solution file. And so you are getting the following error." +
 763                                                 " You could override it by either setting the environment variable to nothing, as\n" +
 764                                                 "   set Platform=\n" +
 765                                                 "Or explicity specify its value on the command line, as\n" +
 766                                                 "   xbuild Foo.sln /p:Platform=Release");
 767                         task.Condition = "('$(CurrentSolutionConfigurationContents)' == '') and ('$(SkipInvalidConfigurations)' != 'true')" +
 768                                         " and '$(Platform)' == 'MCD' and '$(OS)' == 'Windows_NT'";
 769
 770                         task = t.AddNewTask ("Error");
 771                         task.SetParameterValue ("Text", "Invalid solution configuration and platform: \"$(Configuration)|$(Platform)\".");
 772                         task.Condition = "('$(CurrentSolutionConfigurationContents)' == '') and ('$(SkipInvalidConfigurations)' != 'true')";
 773                         task = t.AddNewTask ("Warning");
 774                         task.SetParameterValue ("Text", "Invalid solution configuration and platform: \"$(Configuration)|$(Platform)\".");
 775                         task.Condition = "('$(CurrentSolutionConfigurationContents)' == '') and ('$(SkipInvalidConfigurations)' == 'true')";
 776                         task = t.AddNewTask ("Message");
 777                         task.SetParameterValue ("Text", "Building solution configuration \"$(Configuration)|$(Platform)\".");
 778                         task.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 779                 }
 780
 781                 void AddProjectTargets (Project p, List<TargetInfo> solutionTargets, Dictionary<Guid, ProjectInfo> projectInfos)
 782                 {
 783                         foreach (KeyValuePair<Guid, ProjectInfo> projectInfo in projectInfos) {
 784                                 ProjectInfo project = projectInfo.Value;
 785                                 foreach (string buildTarget in buildTargets) {
 786                                         string target_name = GetTargetNameForProject (project.Name, buildTarget);
 787                                         bool is_build_or_rebuild = buildTarget == "Build" || buildTarget == "Rebuild";
 788                                         Target target = p.Targets.AddNewTarget (target_name);
 789                                         target.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 790
 791                                         if (is_build_or_rebuild)
 792                                                 target.Outputs = "@(CollectedBuildOutput)";
 793                                         if (project.Dependencies.Count > 0)
 794                                                 target.DependsOnTargets = String.Join (";",
 795                                                                 project.Dependencies.Values.Select (
 796                                                                         di => GetTargetNameForProject (di.Name, buildTarget)).ToArray ());
 797
 798                                         foreach (TargetInfo targetInfo in solutionTargets) {
 799                                                 BuildTask task = null;
 800                                                 TargetInfo projectTargetInfo;
 801                                                 if (!project.TargetMap.TryGetValue (targetInfo, out projectTargetInfo)) {
 802                                                         AddWarningForMissingProjectConfiguration (target, targetInfo.Configuration,
 803                                                                         targetInfo.Platform, project.Name);
 804                                                         continue;
 805                                                 }
 806                                                 if (projectTargetInfo.Build) {
 807                                                         task = target.AddNewTask ("MSBuild");
 808                                                         task.SetParameterValue ("Projects", project.FileName);
 809                                                         task.SetParameterValue ("ToolsVersion", "$(ProjectToolsVersion)");
 810                                                         if (is_build_or_rebuild)
 811                                                                 task.AddOutputItem ("TargetOutputs", "CollectedBuildOutput");
 812
 813                                                         if (buildTarget != "Build")
 814                                                                 task.SetParameterValue ("Targets", buildTarget);
 815                                                         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));
 816                                                 } else {
 817                                                         task = target.AddNewTask ("Message");
 818                                                         task.SetParameterValue ("Text", string.Format ("Project \"{0}\" is disabled for solution configuration \"{1}|{2}\".", project.Name, targetInfo.Configuration, targetInfo.Platform));
 819                                                 }
 820                                                 task.Condition = string.Format (" ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ", targetInfo.Configuration, targetInfo.Platform);
 821                                         }
 822                                 }
 823                         }
 824                 }
 825
 826
 827                 string GetTargetNameForProject (string projectName, string buildTarget)
 828                 {
 829                         //FIXME: hack
 830                         projectName = projectName.Replace ("\\", "/").Replace (".", "_");
 831                         string target_name = projectName +
 832                                         (buildTarget == "Build" ? string.Empty : ":" + buildTarget);
 833
 834                         if (IsBuildTargetName (projectName))
 835                                 target_name = "Solution:" + target_name;
 836
 837                         return target_name;
 838                 }
 839
 840                 bool IsBuildTargetName (string name)
 841                 {
 842                         foreach (string tgt in buildTargets)
 843                                 if (name == tgt)
 844                                         return true;
 845                         return false;
 846                 }
 847
 848                 // returns number of levels
 849                 int AddBuildLevels (Project p, List<TargetInfo> solutionTargets, Dictionary<Guid, ProjectInfo> projectInfos,
 850                                 ref List<ProjectInfo>[] infosByLevel)
 851                 {
 852                         infosByLevel = TopologicalSort<ProjectInfo> (projectInfos.Values);
 853
 854                         foreach (TargetInfo targetInfo in solutionTargets) {
 855                                 BuildItemGroup big = p.AddNewItemGroup ();
 856                                 big.Condition = String.Format (" ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ",
 857                                                 targetInfo.Configuration, targetInfo.Platform);
 858
 859                                 //FIXME: every level has projects that can be built in parallel.
 860                                 //       levels are ordered on the basis of the dependency graph
 861
 862                                 for (int i = 0; i < infosByLevel.Length; i ++) {
 863                                         string build_level = String.Format ("BuildLevel{0}", i);
 864                                         string skip_level = String.Format ("SkipLevel{0}", i);
 865                                         string missing_level = String.Format ("MissingConfigLevel{0}", i);
 866
 867                                         foreach (ProjectInfo projectInfo in infosByLevel [i]) {
 868                                                 TargetInfo projectTargetInfo;
 869                                                 if (!projectInfo.TargetMap.TryGetValue (targetInfo, out projectTargetInfo)) {
 870                                                         // missing project config
 871                                                         big.AddNewItem (missing_level, projectInfo.Name);
 872                                                         continue;
 873                                                 }
 874
 875                                                 if (projectTargetInfo.Build) {
 876                                                         BuildItem item = big.AddNewItem (build_level, projectInfo.FileName);
 877                                                         item.SetMetadata ("Configuration", projectTargetInfo.Configuration);
 878                                                         item.SetMetadata ("Platform", projectTargetInfo.Platform);
 879                                                 } else {
 880                                                         // build disabled
 881                                                         big.AddNewItem (skip_level, projectInfo.Name);
 882                                                 }
 883                                         }
 884                                 }
 885                         }
 886
 887                         return infosByLevel.Length;
 888                 }
 889
 890                 void AddSolutionTargets (Project p, int num_levels, IEnumerable<ProjectInfo> websiteProjectInfos)
 891                 {
 892                         foreach (string buildTarget in buildTargets) {
 893                                 Target t = p.Targets.AddNewTarget (buildTarget);
 894                                 bool is_build_or_rebuild = buildTarget == "Build" || buildTarget == "Rebuild";
 895
 896                                 t.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 897                                 if (is_build_or_rebuild)
 898                                         t.Outputs = "@(CollectedBuildOutput)";
 899
 900                                 BuildTask task = null;
 901                                 for (int i = 0; i < num_levels; i ++) {
 902                                         string level_str = String.Format ("BuildLevel{0}", i);
 903                                         task = t.AddNewTask ("MSBuild");
 904                                         task.SetParameterValue ("Condition", String.Format ("'@({0})' != ''", level_str));
 905                                         task.SetParameterValue ("Projects", String.Format ("@({0})", level_str));
 906                                         task.SetParameterValue ("ToolsVersion", "$(ProjectToolsVersion)");
 907                                         task.SetParameterValue ("Properties",
 908                                                 string.Format ("Configuration=%(Configuration); Platform=%(Platform); BuildingSolutionFile=true; CurrentSolutionConfigurationContents=$(CurrentSolutionConfigurationContents); SolutionDir=$(SolutionDir); SolutionExt=$(SolutionExt); SolutionFileName=$(SolutionFileName); SolutionName=$(SolutionName); SolutionPath=$(SolutionPath)"));
 909                                         if (buildTarget != "Build")
 910                                                 task.SetParameterValue ("Targets", buildTarget);
 911                                         //FIXME: change this to BuildInParallel=true, when parallel
 912                                         //       build support gets added
 913                                         task.SetParameterValue ("RunEachTargetSeparately", "true");
 914                                         if (is_build_or_rebuild)
 915                                                 task.AddOutputItem ("TargetOutputs", "CollectedBuildOutput");
 916
 917                                         level_str = String.Format ("SkipLevel{0}", i);
 918                                         task = t.AddNewTask ("Message");
 919                                         task.Condition = String.Format ("'@({0})' != ''", level_str);
 920                                         task.SetParameterValue ("Text",
 921                                                 String.Format ("The project '%({0}.Identity)' is disabled for solution " +
 922                                                         "configuration '$(Configuration)|$(Platform)'.", level_str));
 923
 924                                         level_str = String.Format ("MissingConfigLevel{0}", i);
 925                                         task = t.AddNewTask ("Warning");
 926                                         task.Condition = String.Format ("'@({0})' != ''", level_str);
 927                                         task.SetParameterValue ("Text",
 928                                                 String.Format ("The project configuration for project '%({0}.Identity)' " +
 929                                                         "corresponding to the solution configuration " +
 930                                                         "'$(Configuration)|$(Platform)' was not found.", level_str));
 931                                 }
 932
 933                                 // "build" website projects also
 934                                 StringBuilder w_targets = new StringBuilder ();
 935                                 foreach (ProjectInfo info in websiteProjectInfos) {
 936                                         if (w_targets.Length > 0)
 937                                                 w_targets.Append (";");
 938                                         w_targets.Append (GetTargetNameForProject (info.Name, buildTarget));
 939                                 }
 940
 941                                 task = t.AddNewTask ("CallTarget");
 942                                 task.SetParameterValue ("Targets", w_targets.ToString ());
 943                                 task.SetParameterValue ("RunEachTargetSeparately", "true");
 944                         }
 945                 }
 946
 947                 // Sorts the ProjectInfo dependency graph, to obtain
 948                 // a series of build levels with projects. Projects
 949                 // in each level can be run parallel (no inter-dependency).
 950                 static List<T>[] TopologicalSort<T> (IEnumerable<T> items) where T: ProjectInfo
 951                 {
 952                         IList<T> allItems;
 953                         allItems = items as IList<T>;
 954                         if (allItems == null)
 955                                 allItems = new List<T> (items);
 956
 957                         bool[] inserted = new bool[allItems.Count];
 958                         bool[] triedToInsert = new bool[allItems.Count];
 959                         int[] levels = new int [allItems.Count];
 960
 961                         int maxdepth = 0;
 962                         for (int i = 0; i < allItems.Count; ++i) {
 963                                 int d = Insert<T> (i, allItems, levels, inserted, triedToInsert);
 964                                 if (d > maxdepth)
 965                                         maxdepth = d;
 966                         }
 967
 968                         // Separate out the project infos by build level
 969                         List<T>[] infosByLevel = new List<T>[maxdepth];
 970                         for (int i = 0; i < levels.Length; i ++) {
 971                                 int level = levels [i] - 1;
 972                                 if (infosByLevel [level] == null)
 973                                         infosByLevel [level] = new List<T> ();
 974
 975                                 infosByLevel [level].Add (allItems [i]);
 976                         }
 977
 978                         return infosByLevel;
 979                 }
 980
 981                 // returns level# for the project
 982                 static int Insert<T> (int index, IList<T> allItems, int[] levels, bool[] inserted, bool[] triedToInsert)
 983                         where T: ProjectInfo
 984                 {
 985                         if (inserted [index])
 986                                 return levels [index];
 987
 988                         if (triedToInsert[index])
 989                                 throw new InvalidOperationException (String.Format (
 990                                                 "Cyclic dependency involving project {0} found in the project dependency graph",
 991                                                 allItems [index].Name));
 992
 993                         triedToInsert[index] = true;
 994                         ProjectInfo insertItem = allItems[index];
 995
 996                         int maxdepth = 0;
 997                         foreach (ProjectInfo dependency in insertItem.Dependencies.Values) {
 998                                 for (int j = 0; j < allItems.Count; ++j) {
 999                                         ProjectInfo checkItem = allItems [j];
1000                                         if (dependency.FileName == checkItem.FileName) {
1001                                                 int d = Insert (j, allItems, levels, inserted, triedToInsert);
1002                                                 maxdepth = d > maxdepth ? d : maxdepth;
1003                                                 break;
1004                                         }
1005                                 }
1006                         }
1007                         levels [index] = maxdepth + 1;
1008                         inserted [index] = true;
1009
1010                         return levels [index];
1011                 }
1012
1013                 public static IEnumerable<string> GetAllProjectFileNames (string solutionFile)
1014                 {
1015                         StreamReader reader = new StreamReader (solutionFile);
1016                         string line = reader.ReadToEnd ();
1017                         line = line.Replace ("\r\n", "\n");
1018                         string soln_dir = Path.GetDirectoryName (solutionFile);
1019
1020                         Match m = projectRegex.Match (line);
1021                         while (m.Success) {
1022                                 if (String.Compare (m.Groups [1].Value, solutionFolderGuid,
1023                                                 StringComparison.InvariantCultureIgnoreCase) != 0)
1024                                         yield return Path.Combine (soln_dir, m.Groups [3].Value).Replace ("\\", "/");
1025
1026                                 m = m.NextMatch ();
1027                         }
1028                 }
1029         }
1030 }
1031
1032 #endif