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 using System;
  32 using System.Collections.Generic;
  33 using System.Linq;
  34 using System.Text;
  35 using System.Text.RegularExpressions;
  36 using System.IO;
  37 using Microsoft.Build.BuildEngine;
  38
  39 namespace Mono.XBuild.CommandLine {
  40         class ProjectInfo {
  41                 public string Name;
  42                 public string FileName;
  43                 public Guid Guid;
  44
  45                 public ProjectInfo (string name, string fileName)
  46                 {
  47                         Name = name;
  48                         FileName = fileName;
  49                 }
  50
  51                 public Dictionary<TargetInfo, TargetInfo> TargetMap = new Dictionary<TargetInfo, TargetInfo> ();
  52                 public Dictionary<Guid, ProjectInfo> Dependencies = new Dictionary<Guid, ProjectInfo> ();
  53                 public Dictionary<string, ProjectSection> ProjectSections = new Dictionary<string, ProjectSection> ();
  54                 public List<string> AspNetConfigurations = new List<string> ();
  55         }
  56
  57         class ProjectSection {
  58                 public string Name;
  59                 public Dictionary<string, string> Properties = new Dictionary<string, string> ();
  60
  61                 public ProjectSection (string name)
  62                 {
  63                         Name = name;
  64                 }
  65         }
  66
  67         struct TargetInfo {
  68                 public string Configuration;
  69                 public string Platform;
  70                 public bool Build;
  71
  72                 public TargetInfo (string configuration, string platform)
  73                         : this (configuration, platform, false)
  74                 {
  75                 }
  76
  77                 public TargetInfo (string configuration, string platform, bool build)
  78                 {
  79                         Configuration = configuration;
  80                         Platform = platform;
  81                         Build = build;
  82                 }
  83         }
  84
  85
  86         internal delegate void RaiseWarningHandler (int errorNumber, string message);
  87
  88         class SolutionParser {
  89                 static string[] buildTargets = new string[] { "Build", "Clean", "Rebuild", "Publish" };
  90
  91                 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}}";
  92
  93                 static Regex slnVersionRegex = new Regex (@"Microsoft Visual Studio Solution File, Format Version (\d?\d.\d\d)");
  94                 static Regex projectRegex = new Regex ("Project\\(\"(" + guidExpression + ")\"\\) = \"(.*?)\", \"(.*?)\", \"(" + guidExpression + ")\"(\\s*?)((\\s*?)ProjectSection\\((.*?)\\) = (.*?)EndProjectSection(\\s*?))*(\\s*?)(EndProject)?", RegexOptions.Singleline);
  95                 static Regex projectDependenciesRegex = new Regex ("ProjectSection\\((.*?)\\) = \\w*(.*?)EndProjectSection", RegexOptions.Singleline);
  96                 static Regex projectDependencyRegex = new Regex ("\\s*(" + guidExpression + ") = (" + guidExpression + ")");
  97                 static Regex projectSectionPropertiesRegex = new Regex ("\\s*(?<name>.*) = \"(?<value>.*)\"");
  98
  99                 static Regex globalRegex = new Regex ("Global(.*)EndGlobal", RegexOptions.Singleline);
 100                 static Regex globalSectionRegex = new Regex ("GlobalSection\\((.*?)\\) = \\w*(.*?)EndGlobalSection", RegexOptions.Singleline);
 101
 102                 static Regex solutionConfigurationRegex = new Regex ("\\s*(.*?)\\|(.*?) = (.*?)\\|(.+)");
 103                 static Regex projectConfigurationActiveCfgRegex = new Regex ("\\s*(" + guidExpression + ")\\.(.+?)\\|(.+?)\\.ActiveCfg = (.+?)\\|(.+)");
 104                 static Regex projectConfigurationBuildRegex = new Regex ("\\s*(" + guidExpression + ")\\.(.*?)\\|(.*?)\\.Build\\.0 = (.*?)\\|(.+)");
 105
 106                 static string solutionFolderGuid = "{2150E333-8FDC-42A3-9474-1A3956D46DE8}";
 107                 static string vcprojGuid = "{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}";
 108                 static string websiteProjectGuid = "{E24C65DC-7377-472B-9ABA-BC803B73C61A}";
 109
 110                 RaiseWarningHandler RaiseWarning;
 111
 112                 public void ParseSolution (string file, Project p, RaiseWarningHandler RaiseWarning)
 113                 {
 114                         this.RaiseWarning = RaiseWarning;
 115                         EmitBeforeImports (p, file);
 116
 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                         AddProjectReferences (p, projectInfos);
 306                         AddWebsiteProperties (p, websiteProjectInfos, projectInfos);
 307                         AddValidateSolutionConfiguration (p);
 308
 309                         EmitAfterImports (p, file);
 310
 311                         AddGetFrameworkPathTarget (p);
 312                         AddWebsiteTargets (p, websiteProjectInfos, projectInfos, infosByLevel, solutionTargets);
 313                         AddProjectTargets (p, solutionTargets, projectInfos);
 314                         AddSolutionTargets (p, num_levels, websiteProjectInfos.Values);
 315                 }
 316
 317                 string GetSlnFileVersion (StreamReader reader)
 318                 {
 319                         string strInput = null;
 320                         Match match;
 321
 322                         strInput = reader.ReadLine();
 323                         if (strInput == null)
 324                                 return null;
 325
 326                         match = slnVersionRegex.Match(strInput);
 327                         if (!match.Success) {
 328                                 strInput = reader.ReadLine();
 329                                 if (strInput == null)
 330                                         return null;
 331                                 match = slnVersionRegex.Match (strInput);
 332                         }
 333
 334                         if (match.Success)
 335                                 return match.Groups[1].Value;
 336
 337                         return null;
 338                 }
 339
 340                 void EmitBeforeImports (Project p, string file)
 341                 {
 342 #if NET_4_0
 343                         p.AddNewImport ("$(MSBuildExtensionsPath)\\$(MSBuildToolsVersion)\\SolutionFile\\ImportBefore\\*",
 344                                         "'$(ImportByWildcardBeforeSolution)' != 'false' and " +
 345                                         "Exists('$(MSBuildExtensionsPath)\\$(MSBuildToolsVersion)\\SolutionFile\\ImportBefore')");
 346 #endif
 347
 348                         string before_filename = Path.Combine (Path.GetDirectoryName (file), "before." + Path.GetFileName (file) + ".targets");
 349                         p.AddNewImport (before_filename, String.Format ("Exists ('{0}')", before_filename));
 350                 }
 351
 352                 void EmitAfterImports (Project p, string file)
 353                 {
 354 #if NET_4_0
 355                         p.AddNewImport ("$(MSBuildExtensionsPath)\\$(MSBuildToolsVersion)\\SolutionFile\\ImportAfter\\*",
 356                                         "'$(ImportByWildcardAfterSolution)' != 'false' and " +
 357                                         "Exists('$(MSBuildExtensionsPath)\\$(MSBuildToolsVersion)\\SolutionFile\\ImportAfter')");
 358 #endif
 359
 360                         string after_filename = Path.Combine (Path.GetDirectoryName (file), "after." + Path.GetFileName (file) + ".targets");
 361                         p.AddNewImport (after_filename, String.Format ("Exists ('{0}')", after_filename));
 362                 }
 363
 364                 void AddGeneralSettings (string solutionFile, Project p)
 365                 {
 366                         p.DefaultTargets = "Build";
 367                         p.InitialTargets = "ValidateSolutionConfiguration";
 368                         p.AddNewUsingTaskFromAssemblyName ("CreateTemporaryVCProject", "Microsoft.Build.Tasks, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a");
 369                         p.AddNewUsingTaskFromAssemblyName ("ResolveVCProjectOutput", "Microsoft.Build.Tasks, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a");
 370
 371                         string solutionFilePath = Path.GetFullPath (solutionFile);
 372                         BuildPropertyGroup solutionPropertyGroup = p.AddNewPropertyGroup (true);
 373                         solutionPropertyGroup.AddNewProperty ("SolutionDir", Path.GetDirectoryName (solutionFilePath) + Path.DirectorySeparatorChar);
 374                         solutionPropertyGroup.AddNewProperty ("SolutionExt", Path.GetExtension (solutionFile));
 375                         solutionPropertyGroup.AddNewProperty ("SolutionFileName", Path.GetFileName (solutionFile));
 376                         solutionPropertyGroup.AddNewProperty ("SolutionName", Path.GetFileNameWithoutExtension (solutionFile));
 377                         solutionPropertyGroup.AddNewProperty ("SolutionPath", solutionFilePath);
 378                 }
 379
 380                 void ParseSolutionConfigurationPlatforms (string section, List<TargetInfo> solutionTargets)
 381                 {
 382                         Match solutionConfigurationPlatform = solutionConfigurationRegex.Match (section);
 383                         while (solutionConfigurationPlatform.Success) {
 384                                 string solutionConfiguration = solutionConfigurationPlatform.Groups[1].Value;
 385                                 string solutionPlatform = solutionConfigurationPlatform.Groups[2].Value;
 386                                 solutionTargets.Add (new TargetInfo (solutionConfiguration, solutionPlatform));
 387                                 solutionConfigurationPlatform = solutionConfigurationPlatform.NextMatch ();
 388                         }
 389                 }
 390
 391                 // ignores the website projects, in the websiteProjectInfos
 392                 void ParseProjectConfigurationPlatforms (string section, Dictionary<Guid, ProjectInfo> projectInfos,
 393                                 Dictionary<Guid, ProjectInfo> websiteProjectInfos)
 394                 {
 395                         List<Guid> missingGuids = new List<Guid> ();
 396                         Match projectConfigurationPlatform = projectConfigurationActiveCfgRegex.Match (section);
 397                         while (projectConfigurationPlatform.Success) {
 398                                 Guid guid = new Guid (projectConfigurationPlatform.Groups[1].Value);
 399                                 ProjectInfo projectInfo;
 400                                 if (!projectInfos.TryGetValue (guid, out projectInfo)) {
 401                                         if (!missingGuids.Contains (guid)) {
 402                                                 if (!websiteProjectInfos.ContainsKey (guid))
 403                                                         // ignore website projects
 404                                                         RaiseWarning (0, string.Format("Failed to find project {0}", guid));
 405                                                 missingGuids.Add (guid);
 406                                         }
 407                                         projectConfigurationPlatform = projectConfigurationPlatform.NextMatch ();
 408                                         continue;
 409                                 }
 410                                 string solConf = projectConfigurationPlatform.Groups[2].Value;
 411                                 string solPlat = projectConfigurationPlatform.Groups[3].Value;
 412                                 string projConf = projectConfigurationPlatform.Groups[4].Value;
 413                                 string projPlat = projectConfigurationPlatform.Groups[5].Value;
 414                                 // hack, what are they doing here?
 415                                 if (projPlat == "Any CPU")
 416                                         projPlat = "AnyCPU";
 417                                 projectInfo.TargetMap.Add (new TargetInfo (solConf, solPlat), new TargetInfo (projConf, projPlat));
 418                                 projectConfigurationPlatform = projectConfigurationPlatform.NextMatch ();
 419                         }
 420                         Match projectConfigurationPlatformBuild = projectConfigurationBuildRegex.Match (section);
 421                         while (projectConfigurationPlatformBuild.Success) {
 422                                 Guid guid = new Guid (projectConfigurationPlatformBuild.Groups[1].Value);
 423                                 ProjectInfo projectInfo;
 424                                 if (!projectInfos.TryGetValue (guid, out projectInfo)) {
 425                                         if (!missingGuids.Contains (guid)) {
 426                                                 RaiseWarning (0, string.Format("Failed to find project {0}", guid));
 427                                                 missingGuids.Add (guid);
 428                                         }
 429                                         projectConfigurationPlatformBuild = projectConfigurationPlatformBuild.NextMatch ();
 430                                         continue;
 431                                 }
 432                                 string solConf = projectConfigurationPlatformBuild.Groups[2].Value;
 433                                 string solPlat = projectConfigurationPlatformBuild.Groups[3].Value;
 434                                 string projConf = projectConfigurationPlatformBuild.Groups[4].Value;
 435                                 string projPlat = projectConfigurationPlatformBuild.Groups[5].Value;
 436                                 // hack, what are they doing here?
 437                                 if (projPlat == "Any CPU")
 438                                         projPlat = "AnyCPU";
 439                                 projectInfo.TargetMap[new TargetInfo (solConf, solPlat)] = new TargetInfo (projConf, projPlat, true);
 440                                 projectConfigurationPlatformBuild = projectConfigurationPlatformBuild.NextMatch ();
 441                         }
 442                 }
 443
 444                 void ParseSolutionProperties (string section)
 445                 {
 446                 }
 447
 448                 void AddCurrentSolutionConfigurationContents (Project p, List<TargetInfo> solutionTargets,
 449                                 Dictionary<Guid, ProjectInfo> projectInfos,
 450                                 Dictionary<Guid, ProjectInfo> websiteProjectInfos)
 451                 {
 452                         TargetInfo default_target_info = new TargetInfo ("Debug", "Any CPU");
 453                         if (solutionTargets.Count > 0) {
 454                                 bool found = false;
 455                                 foreach (TargetInfo tinfo in solutionTargets) {
 456                                         if (String.Compare (tinfo.Platform, "Mixed Platforms") == 0) {
 457                                                 default_target_info = tinfo;
 458                                                 found = true;
 459                                                 break;
 460                                         }
 461                                 }
 462
 463                                 if (!found)
 464                                         default_target_info = solutionTargets [0];
 465                         }
 466
 467                         AddDefaultSolutionConfiguration (p, default_target_info);
 468
 469                         foreach (TargetInfo solutionTarget in solutionTargets) {
 470                                 BuildPropertyGroup platformPropertyGroup = p.AddNewPropertyGroup (false);
 471                                 platformPropertyGroup.Condition = string.Format (
 472                                         " ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ",
 473                                         solutionTarget.Configuration,
 474                                         solutionTarget.Platform
 475                                         );
 476
 477                                 StringBuilder solutionConfigurationContents = new StringBuilder ();
 478                                 solutionConfigurationContents.Append ("<SolutionConfiguration xmlns=\"\">");
 479                                 foreach (KeyValuePair<Guid, ProjectInfo> projectInfo in projectInfos) {
 480                                         AddProjectConfigurationItems (projectInfo.Key, projectInfo.Value, solutionTarget, solutionConfigurationContents);
 481                                 }
 482                                 solutionConfigurationContents.Append ("</SolutionConfiguration>");
 483
 484                                 platformPropertyGroup.AddNewProperty ("CurrentSolutionConfigurationContents",
 485                                                 solutionConfigurationContents.ToString ());
 486                         }
 487                 }
 488
 489                 void AddProjectReferences (Project p, Dictionary<Guid, ProjectInfo> projectInfos)
 490                 {
 491                         BuildItemGroup big = p.AddNewItemGroup ();
 492                         foreach (KeyValuePair<Guid, ProjectInfo> pair in projectInfos)
 493                                 big.AddNewItem ("ProjectReference", pair.Value.FileName);
 494                 }
 495
 496                 void AddProjectConfigurationItems (Guid guid, ProjectInfo projectInfo, TargetInfo solutionTarget,
 497                                 StringBuilder solutionConfigurationContents)
 498                 {
 499                         foreach (KeyValuePair<TargetInfo, TargetInfo> targetInfo in projectInfo.TargetMap) {
 500                                 if (solutionTarget.Configuration == targetInfo.Key.Configuration &&
 501                                                 solutionTarget.Platform == targetInfo.Key.Platform) {
 502                                         solutionConfigurationContents.AppendFormat (
 503                                                         "<ProjectConfiguration Project=\"{0}\">{1}|{2}</ProjectConfiguration>",
 504                                         guid.ToString ("B").ToUpper (), targetInfo.Value.Configuration, targetInfo.Value.Platform);
 505                                 }
 506                         }
 507                 }
 508
 509                 void AddDefaultSolutionConfiguration (Project p, TargetInfo target)
 510                 {
 511                         BuildPropertyGroup configurationPropertyGroup = p.AddNewPropertyGroup (true);
 512                         configurationPropertyGroup.Condition = " '$(Configuration)' == '' ";
 513                         configurationPropertyGroup.AddNewProperty ("Configuration", target.Configuration);
 514
 515                         BuildPropertyGroup platformPropertyGroup = p.AddNewPropertyGroup (true);
 516                         platformPropertyGroup.Condition = " '$(Platform)' == '' ";
 517                         platformPropertyGroup.AddNewProperty ("Platform", target.Platform);
 518
 519                         // emit default for AspNetConfiguration also
 520                         BuildPropertyGroup aspNetConfigurationPropertyGroup = p.AddNewPropertyGroup (true);
 521                         aspNetConfigurationPropertyGroup.Condition = " ('$(AspNetConfiguration)' == '') ";
 522                         aspNetConfigurationPropertyGroup.AddNewProperty ("AspNetConfiguration", "$(Configuration)");
 523                 }
 524
 525                 void AddWarningForMissingProjectConfiguration (Target target, string slnConfig, string slnPlatform, string projectName)
 526                 {
 527                         BuildTask task = target.AddNewTask ("Warning");
 528                         task.SetParameterValue ("Text",
 529                                         String.Format ("The project configuration for project '{0}' corresponding " +
 530                                                 "to the solution configuration '{1}|{2}' was not found in the solution file.",
 531                                                 projectName, slnConfig, slnPlatform));
 532                         task.Condition = String.Format ("('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}')",
 533                                                 slnConfig, slnPlatform);
 534
 535                 }
 536
 537                 // Website project methods
 538
 539                 void AddWebsiteProperties (Project p, Dictionary<Guid, ProjectInfo> websiteProjectInfos,
 540                                 Dictionary<Guid, ProjectInfo> projectInfos)
 541                 {
 542                         var propertyGroupByConfig = new Dictionary<string, BuildPropertyGroup> ();
 543                         foreach (KeyValuePair<Guid, ProjectInfo> infoPair in websiteProjectInfos) {
 544                                 ProjectInfo info = infoPair.Value;
 545                                 string projectGuid = infoPair.Key.ToString ();
 546
 547                                 ProjectSection section;
 548                                 if (!info.ProjectSections.TryGetValue ("WebsiteProperties", out section)) {
 549                                         RaiseWarning (0, String.Format ("Website project '{0}' does not have the required project section: WebsiteProperties. Ignoring project.", info.Name));
 550                                         return;
 551                                 }
 552
 553                                 //parse project references
 554                                 string [] ref_guids = null;
 555                                 string references;
 556                                 if (section.Properties.TryGetValue ("ProjectReferences", out references)) {
 557                                         ref_guids = references.Split (new char [] {';'}, StringSplitOptions.RemoveEmptyEntries);
 558                                         for (int i = 0; i < ref_guids.Length; i ++) {
 559                                                 // "{guid}|foo.dll"
 560                                                 ref_guids [i] = ref_guids [i].Split ('|') [0];
 561
 562                                                 Guid r_guid = new Guid (ref_guids [i]);
 563                                                 ProjectInfo ref_info;
 564                                                 if (projectInfos.TryGetValue (r_guid, out ref_info))
 565                                                         // ignore if not found
 566                                                         info.Dependencies [r_guid] = ref_info;
 567                                         }
 568                                 }
 569
 570                                 foreach (KeyValuePair<string, string> pair in section.Properties) {
 571                                         //looking for -- ConfigName.AspNetCompiler.PropName
 572                                         string [] parts = pair.Key.Split ('.');
 573                                         if (parts.Length != 3 || String.Compare (parts [1], "AspNetCompiler") != 0)
 574                                                 continue;
 575
 576                                         string config = parts [0];
 577                                         string propertyName = parts [2];
 578
 579                                         BuildPropertyGroup bpg;
 580                                         if (!propertyGroupByConfig.TryGetValue (config, out bpg)) {
 581                                                 bpg = p.AddNewPropertyGroup (true);
 582                                                 bpg.Condition = String.Format (" '$(AspNetConfiguration)' == '{0}' ", config);
 583                                                 propertyGroupByConfig [config] = bpg;
 584                                         }
 585
 586                                         bpg.AddNewProperty (String.Format ("Project_{0}_AspNet{1}", projectGuid, propertyName),
 587                                                                 pair.Value);
 588
 589                                         if (!info.AspNetConfigurations.Contains (config))
 590                                                 info.AspNetConfigurations.Add (config);
 591                                 }
 592                         }
 593                 }
 594
 595                 // For WebSite projects
 596                 // The main "Build" target:
 597                 //      1. builds all non-website projects
 598                 //      2. calls target for website project
 599                 //              - gets target path for the referenced projects
 600                 //              - Resolves dependencies, satellites etc for the
 601                 //                referenced project assemblies, and copies them
 602                 //                to bin/ folder
 603                 void AddWebsiteTargets (Project p, Dictionary<Guid, ProjectInfo> websiteProjectInfos,
 604                                 Dictionary<Guid, ProjectInfo> projectInfos, List<ProjectInfo>[] infosByLevel,
 605                                 List<TargetInfo> solutionTargets)
 606                 {
 607                         foreach (ProjectInfo w_info in websiteProjectInfos.Values) {
 608                                 // gets a linear list of dependencies
 609                                 List<ProjectInfo> depInfos = new List<ProjectInfo> ();
 610                                 foreach (List<ProjectInfo> pinfos in infosByLevel) {
 611                                         foreach (ProjectInfo pinfo in pinfos)
 612                                                 if (w_info.Dependencies.ContainsKey (pinfo.Guid))
 613                                                         depInfos.Add (pinfo);
 614                                 }
 615
 616                                 foreach (string buildTarget in new string [] {"Build", "Rebuild"})
 617                                         AddWebsiteTarget (p, w_info, projectInfos, depInfos, solutionTargets, buildTarget);
 618
 619                                 // clean/publish are not supported for website projects
 620                                 foreach (string buildTarget in new string [] {"Clean", "Publish"})
 621                                         AddWebsiteUnsupportedTarget (p, w_info, depInfos, buildTarget);
 622                         }
 623                 }
 624
 625                 void AddWebsiteTarget (Project p, ProjectInfo webProjectInfo,
 626                                 Dictionary<Guid, ProjectInfo> projectInfos, List<ProjectInfo> depInfos,
 627                                 List<TargetInfo> solutionTargets, string buildTarget)
 628                 {
 629                         string w_guid = webProjectInfo.Guid.ToString ().ToUpper ();
 630
 631                         Target target = p.Targets.AddNewTarget (GetTargetNameForProject (webProjectInfo.Name, buildTarget));
 632                         target.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 633                         target.DependsOnTargets = GetWebsiteDependsOnTarget (depInfos, buildTarget);
 634
 635                         // this item collects all the references
 636                         string final_ref_item = String.Format ("Project_{0}_References{1}", w_guid,
 637                                                         buildTarget != "Build" ? "_" + buildTarget : String.Empty);
 638
 639                         foreach (TargetInfo targetInfo in solutionTargets) {
 640                                 int ref_num = 0;
 641                                 foreach (ProjectInfo depInfo in depInfos) {
 642                                         TargetInfo projectTargetInfo;
 643                                         if (!depInfo.TargetMap.TryGetValue (targetInfo, out projectTargetInfo))
 644                                                 // Ignore, no config, so no target path
 645                                                 continue;
 646
 647                                         // GetTargetPath from the referenced project
 648                                         AddWebsiteMSBuildTaskForReference (target, depInfo, projectTargetInfo, targetInfo,
 649                                                         final_ref_item, ref_num);
 650                                         ref_num ++;
 651                                 }
 652                         }
 653
 654                         // resolve the references
 655                         AddWebsiteResolveAndCopyReferencesTasks (target, webProjectInfo, final_ref_item, w_guid);
 656                 }
 657
 658                 // emits the MSBuild task to GetTargetPath for the referenced project
 659                 void AddWebsiteMSBuildTaskForReference (Target target, ProjectInfo depInfo, TargetInfo projectTargetInfo,
 660                                 TargetInfo solutionTargetInfo, string final_ref_item, int ref_num)
 661                 {
 662                         BuildTask task = target.AddNewTask ("MSBuild");
 663                         task.SetParameterValue ("Projects", depInfo.FileName);
 664                         task.SetParameterValue ("Targets", "GetTargetPath");
 665
 666                         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));
 667                         task.Condition = string.Format (" ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ", solutionTargetInfo.Configuration, solutionTargetInfo.Platform);
 668
 669                         string ref_item = String.Format ("{0}_{1}",
 670                                                 final_ref_item, ref_num);
 671
 672                         task.AddOutputItem ("TargetOutputs", ref_item);
 673
 674                         task = target.AddNewTask ("CreateItem");
 675                         task.SetParameterValue ("Include", String.Format ("@({0})", ref_item));
 676                         task.SetParameterValue ("AdditionalMetadata", String.Format ("Guid={{{0}}}",
 677                                                 depInfo.Guid.ToString ().ToUpper ()));
 678                         task.AddOutputItem ("Include", final_ref_item);
 679                 }
 680
 681                 void AddWebsiteResolveAndCopyReferencesTasks (Target target, ProjectInfo webProjectInfo,
 682                                 string final_ref_item, string w_guid)
 683                 {
 684                         BuildTask task = target.AddNewTask ("ResolveAssemblyReference");
 685                         task.SetParameterValue ("Assemblies", String.Format ("@({0}->'%(FullPath)')", final_ref_item));
 686                         task.SetParameterValue ("TargetFrameworkDirectories", "$(TargetFrameworkPath)");
 687                         task.SetParameterValue ("SearchPaths", "{RawFileName};{TargetFrameworkDirectory};{GAC}");
 688                         task.SetParameterValue ("FindDependencies", "true");
 689                         task.SetParameterValue ("FindSatellites", "true");
 690                         task.SetParameterValue ("FindRelatedFiles", "true");
 691                         task.Condition = String.Format ("Exists ('%({0}.Identity)')", final_ref_item);
 692
 693                         string copylocal_item = String.Format ("{0}_CopyLocalFiles", final_ref_item);
 694                         task.AddOutputItem ("CopyLocalFiles", copylocal_item);
 695
 696                         // Copy the references
 697                         task = target.AddNewTask ("Copy");
 698                         task.SetParameterValue ("SourceFiles", String.Format ("@({0})", copylocal_item));
 699                         task.SetParameterValue ("DestinationFiles", String.Format (
 700                                                 "@({0}->'$(Project_{1}_AspNetPhysicalPath)\\Bin\\%(DestinationSubDirectory)%(Filename)%(Extension)')",
 701                                                 copylocal_item, w_guid));
 702
 703                         // AspNetConfiguration, is config for the website project, useful
 704                         // for overriding from command line
 705                         StringBuilder cond = new StringBuilder ();
 706                         foreach (string config in webProjectInfo.AspNetConfigurations) {
 707                                 if (cond.Length > 0)
 708                                         cond.Append (" or ");
 709                                 cond.AppendFormat (" ('$(AspNetConfiguration)' == '{0}') ", config);
 710                         }
 711                         task.Condition = cond.ToString ();
 712
 713                         task = target.AddNewTask ("Message");
 714                         cond = new StringBuilder ();
 715                         foreach (string config in webProjectInfo.AspNetConfigurations) {
 716                                 if (cond.Length > 0)
 717                                         cond.Append (" and ");
 718                                 cond.AppendFormat (" ('$(AspNetConfiguration)' != '{0}') ", config);
 719                         }
 720                         task.Condition = cond.ToString ();
 721                         task.SetParameterValue ("Text", "Skipping as the '$(AspNetConfiguration)' configuration is " +
 722                                                 "not supported by this website project.");
 723                 }
 724
 725                 void AddWebsiteUnsupportedTarget (Project p, ProjectInfo webProjectInfo, List<ProjectInfo> depInfos,
 726                                 string buildTarget)
 727                 {
 728                         Target target = p.Targets.AddNewTarget (GetTargetNameForProject (webProjectInfo.Name, buildTarget));
 729                         target.DependsOnTargets = GetWebsiteDependsOnTarget (depInfos, buildTarget);
 730
 731                         BuildTask task = target.AddNewTask ("Message");
 732                         task.SetParameterValue ("Text", String.Format (
 733                                                 "Target '{0}' not support for website projects", buildTarget));
 734                 }
 735
 736                 string GetWebsiteDependsOnTarget (List<ProjectInfo> depInfos, string buildTarget)
 737                 {
 738                         StringBuilder deps = new StringBuilder ();
 739                         foreach (ProjectInfo pinfo in depInfos) {
 740                                 if (deps.Length > 0)
 741                                         deps.Append (";");
 742                                 deps.Append (GetTargetNameForProject (pinfo.Name, buildTarget));
 743                         }
 744                         deps.Append (";GetFrameworkPath");
 745                         return deps.ToString ();
 746                 }
 747
 748                 void AddGetFrameworkPathTarget (Project p)
 749                 {
 750                         Target t = p.Targets.AddNewTarget ("GetFrameworkPath");
 751                         BuildTask task = t.AddNewTask ("GetFrameworkPath");
 752                         task.AddOutputProperty ("Path", "TargetFrameworkPath");
 753                 }
 754
 755                 void AddValidateSolutionConfiguration (Project p)
 756                 {
 757                         Target t = p.Targets.AddNewTarget ("ValidateSolutionConfiguration");
 758                         BuildTask task = t.AddNewTask ("Warning");
 759                         task.SetParameterValue ("Text", "On windows, an environment variable 'Platform' is set to MCD sometimes, and this overrides the Platform property" +
 760                                                 " for xbuild, which could be an invalid Platform for this solution file. And so you are getting the following error." +
 761                                                 " You could override it by either setting the environment variable to nothing, as\n" +
 762                                                 "   set Platform=\n" +
 763                                                 "Or explicity specify its value on the command line, as\n" +
 764                                                 "   xbuild Foo.sln /p:Platform=Release");
 765                         task.Condition = "('$(CurrentSolutionConfigurationContents)' == '') and ('$(SkipInvalidConfigurations)' != 'true')" +
 766                                         " and '$(Platform)' == 'MCD' and '$(OS)' == 'Windows_NT'";
 767
 768                         task = t.AddNewTask ("Error");
 769                         task.SetParameterValue ("Text", "Invalid solution configuration and platform: \"$(Configuration)|$(Platform)\".");
 770                         task.Condition = "('$(CurrentSolutionConfigurationContents)' == '') and ('$(SkipInvalidConfigurations)' != 'true')";
 771                         task = t.AddNewTask ("Warning");
 772                         task.SetParameterValue ("Text", "Invalid solution configuration and platform: \"$(Configuration)|$(Platform)\".");
 773                         task.Condition = "('$(CurrentSolutionConfigurationContents)' == '') and ('$(SkipInvalidConfigurations)' == 'true')";
 774                         task = t.AddNewTask ("Message");
 775                         task.SetParameterValue ("Text", "Building solution configuration \"$(Configuration)|$(Platform)\".");
 776                         task.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 777                 }
 778
 779                 void AddProjectTargets (Project p, List<TargetInfo> solutionTargets, Dictionary<Guid, ProjectInfo> projectInfos)
 780                 {
 781                         foreach (KeyValuePair<Guid, ProjectInfo> projectInfo in projectInfos) {
 782                                 ProjectInfo project = projectInfo.Value;
 783                                 foreach (string buildTarget in buildTargets) {
 784                                         string target_name = GetTargetNameForProject (project.Name, buildTarget);
 785                                         bool is_build_or_rebuild = buildTarget == "Build" || buildTarget == "Rebuild";
 786                                         Target target = p.Targets.AddNewTarget (target_name);
 787                                         target.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 788
 789                                         if (is_build_or_rebuild)
 790                                                 target.Outputs = "@(CollectedBuildOutput)";
 791                                         if (project.Dependencies.Count > 0)
 792                                                 target.DependsOnTargets = String.Join (";",
 793                                                                 project.Dependencies.Values.Select (
 794                                                                         di => GetTargetNameForProject (di.Name, buildTarget)).ToArray ());
 795
 796                                         foreach (TargetInfo targetInfo in solutionTargets) {
 797                                                 BuildTask task = null;
 798                                                 TargetInfo projectTargetInfo;
 799                                                 if (!project.TargetMap.TryGetValue (targetInfo, out projectTargetInfo)) {
 800                                                         AddWarningForMissingProjectConfiguration (target, targetInfo.Configuration,
 801                                                                         targetInfo.Platform, project.Name);
 802                                                         continue;
 803                                                 }
 804                                                 if (projectTargetInfo.Build) {
 805                                                         task = target.AddNewTask ("MSBuild");
 806                                                         task.SetParameterValue ("Projects", project.FileName);
 807                                                         task.SetParameterValue ("ToolsVersion", "$(ProjectToolsVersion)");
 808                                                         if (is_build_or_rebuild)
 809                                                                 task.AddOutputItem ("TargetOutputs", "CollectedBuildOutput");
 810
 811                                                         if (buildTarget != "Build")
 812                                                                 task.SetParameterValue ("Targets", buildTarget);
 813                                                         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));
 814                                                 } else {
 815                                                         task = target.AddNewTask ("Message");
 816                                                         task.SetParameterValue ("Text", string.Format ("Project \"{0}\" is disabled for solution configuration \"{1}|{2}\".", project.Name, targetInfo.Configuration, targetInfo.Platform));
 817                                                 }
 818                                                 task.Condition = string.Format (" ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ", targetInfo.Configuration, targetInfo.Platform);
 819                                         }
 820                                 }
 821                         }
 822                 }
 823
 824
 825                 string GetTargetNameForProject (string projectName, string buildTarget)
 826                 {
 827                         //FIXME: hack
 828                         projectName = projectName.Replace ("\\", "/").Replace (".", "_");
 829                         string target_name = projectName +
 830                                         (buildTarget == "Build" ? string.Empty : ":" + buildTarget);
 831
 832                         if (IsBuildTargetName (projectName))
 833                                 target_name = "Solution:" + target_name;
 834
 835                         return target_name;
 836                 }
 837
 838                 bool IsBuildTargetName (string name)
 839                 {
 840                         foreach (string tgt in buildTargets)
 841                                 if (name == tgt)
 842                                         return true;
 843                         return false;
 844                 }
 845
 846                 // returns number of levels
 847                 int AddBuildLevels (Project p, List<TargetInfo> solutionTargets, Dictionary<Guid, ProjectInfo> projectInfos,
 848                                 ref List<ProjectInfo>[] infosByLevel)
 849                 {
 850                         infosByLevel = TopologicalSort<ProjectInfo> (projectInfos.Values);
 851
 852                         foreach (TargetInfo targetInfo in solutionTargets) {
 853                                 BuildItemGroup big = p.AddNewItemGroup ();
 854                                 big.Condition = String.Format (" ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ",
 855                                                 targetInfo.Configuration, targetInfo.Platform);
 856
 857                                 //FIXME: every level has projects that can be built in parallel.
 858                                 //       levels are ordered on the basis of the dependency graph
 859
 860                                 for (int i = 0; i < infosByLevel.Length; i ++) {
 861                                         string build_level = String.Format ("BuildLevel{0}", i);
 862                                         string skip_level = String.Format ("SkipLevel{0}", i);
 863                                         string missing_level = String.Format ("MissingConfigLevel{0}", i);
 864
 865                                         foreach (ProjectInfo projectInfo in infosByLevel [i]) {
 866                                                 TargetInfo projectTargetInfo;
 867                                                 if (!projectInfo.TargetMap.TryGetValue (targetInfo, out projectTargetInfo)) {
 868                                                         // missing project config
 869                                                         big.AddNewItem (missing_level, projectInfo.Name);
 870                                                         continue;
 871                                                 }
 872
 873                                                 if (projectTargetInfo.Build) {
 874                                                         BuildItem item = big.AddNewItem (build_level, projectInfo.FileName);
 875                                                         item.SetMetadata ("Configuration", projectTargetInfo.Configuration);
 876                                                         item.SetMetadata ("Platform", projectTargetInfo.Platform);
 877                                                 } else {
 878                                                         // build disabled
 879                                                         big.AddNewItem (skip_level, projectInfo.Name);
 880                                                 }
 881                                         }
 882                                 }
 883                         }
 884
 885                         return infosByLevel.Length;
 886                 }
 887
 888                 void AddSolutionTargets (Project p, int num_levels, IEnumerable<ProjectInfo> websiteProjectInfos)
 889                 {
 890                         foreach (string buildTarget in buildTargets) {
 891                                 Target t = p.Targets.AddNewTarget (buildTarget);
 892                                 bool is_build_or_rebuild = buildTarget == "Build" || buildTarget == "Rebuild";
 893
 894                                 t.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 895                                 if (is_build_or_rebuild)
 896                                         t.Outputs = "@(CollectedBuildOutput)";
 897
 898                                 BuildTask task = null;
 899                                 for (int i = 0; i < num_levels; i ++) {
 900                                         string level_str = String.Format ("BuildLevel{0}", i);
 901                                         task = t.AddNewTask ("MSBuild");
 902                                         task.SetParameterValue ("Condition", String.Format ("'@({0})' != ''", level_str));
 903                                         task.SetParameterValue ("Projects", String.Format ("@({0})", level_str));
 904                                         task.SetParameterValue ("ToolsVersion", "$(ProjectToolsVersion)");
 905                                         task.SetParameterValue ("Properties",
 906                                                 string.Format ("Configuration=%(Configuration); Platform=%(Platform); BuildingSolutionFile=true; CurrentSolutionConfigurationContents=$(CurrentSolutionConfigurationContents); SolutionDir=$(SolutionDir); SolutionExt=$(SolutionExt); SolutionFileName=$(SolutionFileName); SolutionName=$(SolutionName); SolutionPath=$(SolutionPath)"));
 907                                         if (buildTarget != "Build")
 908                                                 task.SetParameterValue ("Targets", buildTarget);
 909                                         //FIXME: change this to BuildInParallel=true, when parallel
 910                                         //       build support gets added
 911                                         task.SetParameterValue ("RunEachTargetSeparately", "true");
 912                                         if (is_build_or_rebuild)
 913                                                 task.AddOutputItem ("TargetOutputs", "CollectedBuildOutput");
 914
 915                                         level_str = String.Format ("SkipLevel{0}", i);
 916                                         task = t.AddNewTask ("Message");
 917                                         task.Condition = String.Format ("'@({0})' != ''", level_str);
 918                                         task.SetParameterValue ("Text",
 919                                                 String.Format ("The project '%({0}.Identity)' is disabled for solution " +
 920                                                         "configuration '$(Configuration)|$(Platform)'.", level_str));
 921
 922                                         level_str = String.Format ("MissingConfigLevel{0}", i);
 923                                         task = t.AddNewTask ("Warning");
 924                                         task.Condition = String.Format ("'@({0})' != ''", level_str);
 925                                         task.SetParameterValue ("Text",
 926                                                 String.Format ("The project configuration for project '%({0}.Identity)' " +
 927                                                         "corresponding to the solution configuration " +
 928                                                         "'$(Configuration)|$(Platform)' was not found.", level_str));
 929                                 }
 930
 931                                 // "build" website projects also
 932                                 StringBuilder w_targets = new StringBuilder ();
 933                                 foreach (ProjectInfo info in websiteProjectInfos) {
 934                                         if (w_targets.Length > 0)
 935                                                 w_targets.Append (";");
 936                                         w_targets.Append (GetTargetNameForProject (info.Name, buildTarget));
 937                                 }
 938
 939                                 task = t.AddNewTask ("CallTarget");
 940                                 task.SetParameterValue ("Targets", w_targets.ToString ());
 941                                 task.SetParameterValue ("RunEachTargetSeparately", "true");
 942                         }
 943                 }
 944
 945                 // Sorts the ProjectInfo dependency graph, to obtain
 946                 // a series of build levels with projects. Projects
 947                 // in each level can be run parallel (no inter-dependency).
 948                 static List<T>[] TopologicalSort<T> (IEnumerable<T> items) where T: ProjectInfo
 949                 {
 950                         IList<T> allItems;
 951                         allItems = items as IList<T>;
 952                         if (allItems == null)
 953                                 allItems = new List<T> (items);
 954
 955                         bool[] inserted = new bool[allItems.Count];
 956                         bool[] triedToInsert = new bool[allItems.Count];
 957                         int[] levels = new int [allItems.Count];
 958
 959                         int maxdepth = 0;
 960                         for (int i = 0; i < allItems.Count; ++i) {
 961                                 int d = Insert<T> (i, allItems, levels, inserted, triedToInsert);
 962                                 if (d > maxdepth)
 963                                         maxdepth = d;
 964                         }
 965
 966                         // Separate out the project infos by build level
 967                         List<T>[] infosByLevel = new List<T>[maxdepth];
 968                         for (int i = 0; i < levels.Length; i ++) {
 969                                 int level = levels [i] - 1;
 970                                 if (infosByLevel [level] == null)
 971                                         infosByLevel [level] = new List<T> ();
 972
 973                                 infosByLevel [level].Add (allItems [i]);
 974                         }
 975
 976                         return infosByLevel;
 977                 }
 978
 979                 // returns level# for the project
 980                 static int Insert<T> (int index, IList<T> allItems, int[] levels, bool[] inserted, bool[] triedToInsert)
 981                         where T: ProjectInfo
 982                 {
 983                         if (inserted [index])
 984                                 return levels [index];
 985
 986                         if (triedToInsert[index])
 987                                 throw new InvalidOperationException (String.Format (
 988                                                 "Cyclic dependency involving project {0} found in the project dependency graph",
 989                                                 allItems [index].Name));
 990
 991                         triedToInsert[index] = true;
 992                         ProjectInfo insertItem = allItems[index];
 993
 994                         int maxdepth = 0;
 995                         foreach (ProjectInfo dependency in insertItem.Dependencies.Values) {
 996                                 for (int j = 0; j < allItems.Count; ++j) {
 997                                         ProjectInfo checkItem = allItems [j];
 998                                         if (dependency.FileName == checkItem.FileName) {
 999                                                 int d = Insert (j, allItems, levels, inserted, triedToInsert);
1000                                                 maxdepth = d > maxdepth ? d : maxdepth;
1001                                                 break;
1002                                         }
1003                                 }
1004                         }
1005                         levels [index] = maxdepth + 1;
1006                         inserted [index] = true;
1007
1008                         return levels [index];
1009                 }
1010
1011                 public static IEnumerable<string> GetAllProjectFileNames (string solutionFile)
1012                 {
1013                         StreamReader reader = new StreamReader (solutionFile);
1014                         string line = reader.ReadToEnd ();
1015                         line = line.Replace ("\r\n", "\n");
1016                         string soln_dir = Path.GetDirectoryName (solutionFile);
1017
1018                         Match m = projectRegex.Match (line);
1019                         while (m.Success) {
1020                                 if (String.Compare (m.Groups [1].Value, solutionFolderGuid,
1021                                                 StringComparison.InvariantCultureIgnoreCase) != 0)
1022                                         yield return Path.Combine (soln_dir, m.Groups [3].Value).Replace ("\\", "/");
1023
1024                                 m = m.NextMatch ();
1025                         }
1026                 }
1027         }
1028 }