mcs/tools/msbuild/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.Evaluation;
  38 using Microsoft.Build.Execution;
  39 using Microsoft.Build.Construction;
  40 using Microsoft.Build.Exceptions;
  41
  42 namespace Mono.XBuild.CommandLine {
  43         class ProjectInfo {
  44                 public string Name;
  45                 public string FileName;
  46                 public Guid Guid;
  47
  48                 public ProjectInfo (string name, string fileName)
  49                 {
  50                         Name = name;
  51                         FileName = fileName;
  52                 }
  53
  54                 public Dictionary<TargetInfo, TargetInfo> TargetMap = new Dictionary<TargetInfo, TargetInfo> ();
  55                 public Dictionary<Guid, ProjectInfo> Dependencies = new Dictionary<Guid, ProjectInfo> ();
  56                 public Dictionary<string, ProjectSection> ProjectSections = new Dictionary<string, ProjectSection> ();
  57                 public List<string> AspNetConfigurations = new List<string> ();
  58         }
  59
  60         class ProjectSection {
  61                 public string Name;
  62                 public Dictionary<string, string> Properties = new Dictionary<string, string> ();
  63
  64                 public ProjectSection (string name)
  65                 {
  66                         Name = name;
  67                 }
  68         }
  69
  70         struct TargetInfo {
  71                 public string Configuration;
  72                 public string Platform;
  73                 public bool Build;
  74
  75                 public TargetInfo (string configuration, string platform)
  76                         : this (configuration, platform, false)
  77                 {
  78                 }
  79
  80                 public TargetInfo (string configuration, string platform, bool build)
  81                 {
  82                         Configuration = configuration;
  83                         Platform = platform;
  84                         Build = build;
  85                 }
  86         }
  87
  88
  89         internal delegate void RaiseWarningHandler (int errorNumber, string message);
  90
  91         class SolutionParser {
  92                 static string[] buildTargets = new string[] { "Build", "Clean", "Rebuild", "Publish" };
  93
  94                 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}}";
  95
  96                 static Regex slnVersionRegex = new Regex (@"Microsoft Visual Studio Solution File, Format Version (\d?\d.\d\d)");
  97                 static Regex projectRegex = new Regex ("Project\\(\"(" + guidExpression + ")\"\\) = \"(.*?)\", \"(.*?)\", \"(" + guidExpression + ")\"(\\s*?)((\\s*?)ProjectSection\\((.*?)\\) = (.*?)EndProjectSection(\\s*?))*(\\s*?)(EndProject)?", RegexOptions.Singleline);
  98                 static Regex projectDependenciesRegex = new Regex ("ProjectSection\\((.*?)\\) = \\w*(.*?)EndProjectSection", RegexOptions.Singleline);
  99                 static Regex projectDependencyRegex = new Regex ("\\s*(" + guidExpression + ") = (" + guidExpression + ")");
 100                 static Regex projectSectionPropertiesRegex = new Regex ("\\s*(?<name>.*) = \"(?<value>.*)\"");
 101
 102                 static Regex globalRegex = new Regex ("Global(.*)EndGlobal", RegexOptions.Singleline);
 103                 static Regex globalSectionRegex = new Regex ("GlobalSection\\((.*?)\\) = \\w*(.*?)EndGlobalSection", RegexOptions.Singleline);
 104
 105                 static Regex solutionConfigurationRegex = new Regex ("\\s*(.*?)\\|(.*?) = (.*?)\\|(.+)");
 106                 static Regex projectConfigurationActiveCfgRegex = new Regex ("\\s*(" + guidExpression + ")\\.(.+?)\\|(.+?)\\.ActiveCfg = (.+?)\\|(.+)");
 107                 static Regex projectConfigurationBuildRegex = new Regex ("\\s*(" + guidExpression + ")\\.(.*?)\\|(.*?)\\.Build\\.0 = (.*?)\\|(.+)");
 108
 109                 static string solutionFolderGuid = "{2150E333-8FDC-42A3-9474-1A3956D46DE8}";
 110                 static string vcprojGuid = "{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}";
 111                 static string websiteProjectGuid = "{E24C65DC-7377-472B-9ABA-BC803B73C61A}";
 112
 113                 RaiseWarningHandler RaiseWarning;
 114
 115                 public void ParseSolution (string file, ProjectCollection projects, ProjectRootElement p, RaiseWarningHandler RaiseWarning)
 116                 {
 117                         this.RaiseWarning = RaiseWarning;
 118                         EmitBeforeImports (p, file);
 119
 120                         AddGeneralSettings (file, p);
 121
 122                         StreamReader reader = new StreamReader (file);
 123                         string slnVersion = GetSlnFileVersion (reader);
 124                         if (slnVersion == "11.00")
 125                                 projects.DefaultToolsVersion = "4.0";
 126                         else if (slnVersion == "10.00")
 127                                 projects.DefaultToolsVersion = "3.5";
 128                         else
 129                                 projects.DefaultToolsVersion = "2.0";
 130
 131                         string line = reader.ReadToEnd ();
 132                         line = line.Replace ("\r\n", "\n");
 133                         string solutionDir = Path.GetDirectoryName (file);
 134
 135                         List<TargetInfo> solutionTargets = new List<TargetInfo> ();
 136                         Dictionary<Guid, ProjectInfo> projectInfos = new Dictionary<Guid, ProjectInfo> ();
 137                         Dictionary<Guid, ProjectInfo> websiteProjectInfos = new Dictionary<Guid, ProjectInfo> ();
 138                         List<ProjectInfo>[] infosByLevel = null;
 139                         Dictionary<Guid, ProjectInfo> unsupportedProjectInfos = new Dictionary<Guid, ProjectInfo> ();
 140
 141                         Match m = projectRegex.Match (line);
 142                         while (m.Success) {
 143                                 ProjectInfo projectInfo = new ProjectInfo (m.Groups[2].Value,
 144                                                                 Path.GetFullPath (Path.Combine (solutionDir,
 145                                                                         m.Groups [3].Value.Replace ('\\', Path.DirectorySeparatorChar))));
 146                                 if (String.Compare (m.Groups [1].Value, solutionFolderGuid,
 147                                                 StringComparison.InvariantCultureIgnoreCase) == 0) {
 148                                         // Ignore solution folders
 149                                         m = m.NextMatch ();
 150                                         continue;
 151                                 }
 152
 153                                 projectInfo.Guid = new Guid (m.Groups [4].Value);
 154
 155                                 if (String.Compare (m.Groups [1].Value, vcprojGuid,
 156                                                 StringComparison.InvariantCultureIgnoreCase) == 0) {
 157                                         // Ignore vcproj
 158                                         RaiseWarning (0, string.Format("Ignoring vcproj '{0}'.", projectInfo.Name));
 159
 160                                         unsupportedProjectInfos [projectInfo.Guid] = projectInfo;
 161                                         m = m.NextMatch ();
 162                                         continue;
 163                                 }
 164
 165                                 if (String.Compare (m.Groups [1].Value, websiteProjectGuid,
 166                                                 StringComparison.InvariantCultureIgnoreCase) == 0)
 167                                         websiteProjectInfos.Add (new Guid (m.Groups[4].Value), projectInfo);
 168                                 else
 169                                         projectInfos.Add (projectInfo.Guid, projectInfo);
 170
 171                                 Match projectSectionMatch = projectDependenciesRegex.Match (m.Groups[6].Value);
 172                                 while (projectSectionMatch.Success) {
 173                                         string section_name = projectSectionMatch.Groups [1].Value;
 174                                         if (String.Compare (section_name, "ProjectDependencies") == 0) {
 175                                                 Match projectDependencyMatch = projectDependencyRegex.Match (projectSectionMatch.Value);
 176                                                 while (projectDependencyMatch.Success) {
 177                                                         // we might not have projectInfo available right now, so
 178                                                         // set it to null, and fill it in later
 179                                                         projectInfo.Dependencies [new Guid (projectDependencyMatch.Groups[1].Value)] = null;
 180                                                         projectDependencyMatch = projectDependencyMatch.NextMatch ();
 181                                                 }
 182                                         } else {
 183                                                 ProjectSection section = new ProjectSection (section_name);
 184                                                 Match propertiesMatch = projectSectionPropertiesRegex.Match (
 185                                                                         projectSectionMatch.Groups [2].Value);
 186                                                 while (propertiesMatch.Success) {
 187                                                         section.Properties [propertiesMatch.Groups ["name"].Value] =
 188                                                                 propertiesMatch.Groups ["value"].Value;
 189
 190                                                         propertiesMatch = propertiesMatch.NextMatch ();
 191                                                 }
 192
 193                                                 projectInfo.ProjectSections [section_name] = section;
 194                                         }
 195                                         projectSectionMatch = projectSectionMatch.NextMatch ();
 196                                 }
 197                                 m = m.NextMatch ();
 198                         }
 199
 200                         foreach (ProjectInfo projectInfo in projectInfos.Values) {
 201                                 string filename = projectInfo.FileName;
 202                                 string projectDir = Path.GetDirectoryName (filename);
 203
 204                                 if (!File.Exists (filename)) {
 205                                         RaiseWarning (0, String.Format ("Project file {0} referenced in the solution file, " +
 206                                                                 "not found. Ignoring.", filename));
 207                                         continue;
 208                                 }
 209
 210                                 Project currentProject;
 211                                 try {
 212                                         currentProject = new Project (filename, null, null, new ProjectCollection (), ProjectLoadSettings.IgnoreMissingImports);
 213                                 } catch (InvalidProjectFileException e) {
 214                                         RaiseWarning (0, e.Message);
 215                                         continue;
 216                                 }
 217
 218                                 foreach (var bi in currentProject.GetItems ("ProjectReference")) {
 219                                         ProjectInfo info = null;
 220                                         string projectReferenceGuid = bi.GetMetadataValue ("Project");
 221                                         bool hasGuid = !String.IsNullOrEmpty (projectReferenceGuid);
 222
 223                                         // try to resolve the ProjectReference by GUID
 224                                         // and fallback to project filename
 225
 226                                         if (hasGuid) {
 227                                                 Guid guid = new Guid (projectReferenceGuid);
 228                                                 projectInfos.TryGetValue (guid, out info);
 229                                                 if (info == null && unsupportedProjectInfos.TryGetValue (guid, out info)) {
 230                                                         RaiseWarning (0, String.Format (
 231                                                                         "{0}: ProjectReference '{1}' is of an unsupported type. Ignoring.",
 232                                                                 filename, bi.EvaluatedInclude));
 233                                                         continue;
 234                                                 }
 235                                         }
 236
 237                                         if (info == null || !hasGuid) {
 238                                                 // Project not found by guid or guid not available
 239                                                 // Try to find by project file
 240
 241                                                 string fullpath = Path.GetFullPath (Path.Combine (projectDir, bi.EvaluatedInclude.Replace ('\\', Path.DirectorySeparatorChar)));
 242                                                 info = projectInfos.Values.FirstOrDefault (pi => pi.FileName == fullpath);
 243
 244                                                 if (info == null) {
 245                                                         if (unsupportedProjectInfos.Values.Any (pi => pi.FileName == fullpath))
 246                                                                 RaiseWarning (0, String.Format (
 247                                                                                 "{0}: ProjectReference '{1}' is of an unsupported type. Ignoring.",
 248                                                                         filename, bi.EvaluatedInclude));
 249                                                         else
 250                                                                 RaiseWarning (0, String.Format (
 251                                                                                 "{0}: ProjectReference '{1}' not found, neither by guid '{2}' nor by project file name '{3}'.",
 252                                                                         filename, bi.EvaluatedInclude, projectReferenceGuid.Replace ("{", "").Replace ("}", ""), fullpath));
 253                                                 }
 254
 255                                         }
 256
 257                                         if (info != null)
 258                                                 projectInfo.Dependencies [info.Guid] = info;
 259                                 }
 260                         }
 261
 262                         // fill in the project info for deps found in the .sln file
 263                         foreach (ProjectInfo projectInfo in projectInfos.Values) {
 264                                 List<Guid> missingInfos = new List<Guid> ();
 265                                 foreach (KeyValuePair<Guid, ProjectInfo> dependency in projectInfo.Dependencies) {
 266                                         if (dependency.Value == null)
 267                                                 missingInfos.Add (dependency.Key);
 268                                 }
 269
 270                                 foreach (Guid guid in missingInfos) {
 271                                         ProjectInfo info;
 272                                         if (projectInfos.TryGetValue (guid, out info))
 273                                                 projectInfo.Dependencies [guid] = info;
 274                                         else
 275                                                 projectInfo.Dependencies.Remove (guid);
 276                                 }
 277                         }
 278
 279                         Match globalMatch = globalRegex.Match (line);
 280                         Match globalSectionMatch = globalSectionRegex.Match (globalMatch.Groups[1].Value);
 281                         while (globalSectionMatch.Success) {
 282                                 string sectionType = globalSectionMatch.Groups[1].Value;
 283                                 switch (sectionType) {
 284                                         case "SolutionConfigurationPlatforms":
 285                                                 ParseSolutionConfigurationPlatforms (globalSectionMatch.Groups[2].Value, solutionTargets);
 286                                                 break;
 287                                         case "ProjectConfigurationPlatforms":
 288                                                 ParseProjectConfigurationPlatforms (globalSectionMatch.Groups[2].Value,
 289                                                                 projectInfos, websiteProjectInfos);
 290                                                 break;
 291                                         case "SolutionProperties":
 292                                                 ParseSolutionProperties (globalSectionMatch.Groups[2].Value);
 293                                                 break;
 294                                         case "NestedProjects":
 295                                                 break;
 296                                         case "MonoDevelopProperties":
 297                                                 break;
 298                                         default:
 299                                                 RaiseWarning (0, string.Format("Don't know how to handle GlobalSection {0}, Ignoring.", sectionType));
 300                                                 break;
 301                                 }
 302                                 globalSectionMatch = globalSectionMatch.NextMatch ();
 303                         }
 304
 305                         int num_levels = AddBuildLevels (p, solutionTargets, projectInfos, ref infosByLevel);
 306
 307                         AddCurrentSolutionConfigurationContents (p, solutionTargets, projectInfos, websiteProjectInfos);
 308                         AddProjectReferences (p, projectInfos);
 309                         AddWebsiteProperties (p, websiteProjectInfos, projectInfos);
 310                         AddValidateSolutionConfiguration (p);
 311
 312                         EmitAfterImports (p, file);
 313
 314                         AddGetFrameworkPathTarget (p);
 315                         AddWebsiteTargets (p, websiteProjectInfos, projectInfos, infosByLevel, solutionTargets);
 316                         AddProjectTargets (p, solutionTargets, projectInfos);
 317                         AddSolutionTargets (p, num_levels, websiteProjectInfos.Values);
 318                 }
 319
 320                 string GetSlnFileVersion (StreamReader reader)
 321                 {
 322                         string strInput = null;
 323                         Match match;
 324
 325                         strInput = reader.ReadLine();
 326                         if (strInput == null)
 327                                 return null;
 328
 329                         match = slnVersionRegex.Match(strInput);
 330                         if (!match.Success) {
 331                                 strInput = reader.ReadLine();
 332                                 if (strInput == null)
 333                                         return null;
 334                                 match = slnVersionRegex.Match (strInput);
 335                         }
 336
 337                         if (match.Success)
 338                                 return match.Groups[1].Value;
 339
 340                         return null;
 341                 }
 342
 343                 void EmitBeforeImports (ProjectRootElement p, string file)
 344                 {
 345 #if NET_4_0
 346                         p.AddImportGroup ().AddImport ("$(MSBuildExtensionsPath)\\$(MSBuildToolsVersion)\\SolutionFile\\ImportBefore\\*").Condition =
 347                                         "'$(ImportByWildcardBeforeSolution)' != 'false' and " +
 348                                         "Exists('$(MSBuildExtensionsPath)\\$(MSBuildToolsVersion)\\SolutionFile\\ImportBefore')";
 349 #endif
 350
 351                         string before_filename = Path.Combine (Path.GetDirectoryName (file), "before." + Path.GetFileName (file) + ".targets");
 352                         p.AddImportGroup ().AddImport (before_filename).Condition = String.Format ("Exists ('{0}')", before_filename);
 353                 }
 354
 355                 void EmitAfterImports (ProjectRootElement p, string file)
 356                 {
 357 #if NET_4_0
 358                         p.AddImportGroup ().AddImport ("$(MSBuildExtensionsPath)\\$(MSBuildToolsVersion)\\SolutionFile\\ImportAfter\\*").Condition =
 359                                         "'$(ImportByWildcardAfterSolution)' != 'false' and " +
 360                                         "Exists('$(MSBuildExtensionsPath)\\$(MSBuildToolsVersion)\\SolutionFile\\ImportAfter')";
 361 #endif
 362
 363                         string after_filename = Path.Combine (Path.GetDirectoryName (file), "after." + Path.GetFileName (file) + ".targets");
 364                         p.AddImportGroup ().AddImport (after_filename).Condition = String.Format ("Exists ('{0}')", after_filename);
 365                 }
 366
 367                 void AddGeneralSettings (string solutionFile, ProjectRootElement p)
 368                 {
 369                         p.DefaultTargets = "Build";
 370                         p.InitialTargets = "ValidateSolutionConfiguration";
 371                         p.AddUsingTask ("CreateTemporaryVCProject", null, "Microsoft.Build.Tasks, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a");
 372                         p.AddUsingTask ("ResolveVCProjectOutput", null, "Microsoft.Build.Tasks, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a");
 373
 374                         string solutionFilePath = Path.GetFullPath (solutionFile);
 375                         var solutionPropertyGroup = p.CreatePropertyGroupElement ();
 376                         //solutionPropertyGroup.ChildrenReversed = true;
 377                         solutionPropertyGroup.AddProperty ("SolutionDir", Path.GetDirectoryName (solutionFilePath) + Path.DirectorySeparatorChar);
 378                         solutionPropertyGroup.AddProperty ("SolutionExt", Path.GetExtension (solutionFile));
 379                         solutionPropertyGroup.AddProperty ("SolutionFileName", Path.GetFileName (solutionFile));
 380                         solutionPropertyGroup.AddProperty ("SolutionName", Path.GetFileNameWithoutExtension (solutionFile));
 381                         solutionPropertyGroup.AddProperty ("SolutionPath", solutionFilePath);
 382                 }
 383
 384                 void ParseSolutionConfigurationPlatforms (string section, List<TargetInfo> solutionTargets)
 385                 {
 386                         Match solutionConfigurationPlatform = solutionConfigurationRegex.Match (section);
 387                         while (solutionConfigurationPlatform.Success) {
 388                                 string solutionConfiguration = solutionConfigurationPlatform.Groups[1].Value;
 389                                 string solutionPlatform = solutionConfigurationPlatform.Groups[2].Value;
 390                                 solutionTargets.Add (new TargetInfo (solutionConfiguration, solutionPlatform));
 391                                 solutionConfigurationPlatform = solutionConfigurationPlatform.NextMatch ();
 392                         }
 393                 }
 394
 395                 // ignores the website projects, in the websiteProjectInfos
 396                 void ParseProjectConfigurationPlatforms (string section, Dictionary<Guid, ProjectInfo> projectInfos,
 397                                 Dictionary<Guid, ProjectInfo> websiteProjectInfos)
 398                 {
 399                         List<Guid> missingGuids = new List<Guid> ();
 400                         Match projectConfigurationPlatform = projectConfigurationActiveCfgRegex.Match (section);
 401                         while (projectConfigurationPlatform.Success) {
 402                                 Guid guid = new Guid (projectConfigurationPlatform.Groups[1].Value);
 403                                 ProjectInfo projectInfo;
 404                                 if (!projectInfos.TryGetValue (guid, out projectInfo)) {
 405                                         if (!missingGuids.Contains (guid)) {
 406                                                 if (!websiteProjectInfos.ContainsKey (guid))
 407                                                         // ignore website projects
 408                                                         RaiseWarning (0, string.Format("Failed to find project {0}", guid));
 409                                                 missingGuids.Add (guid);
 410                                         }
 411                                         projectConfigurationPlatform = projectConfigurationPlatform.NextMatch ();
 412                                         continue;
 413                                 }
 414                                 string solConf = projectConfigurationPlatform.Groups[2].Value;
 415                                 string solPlat = projectConfigurationPlatform.Groups[3].Value;
 416                                 string projConf = projectConfigurationPlatform.Groups[4].Value;
 417                                 string projPlat = projectConfigurationPlatform.Groups[5].Value;
 418                                 // hack, what are they doing here?
 419                                 if (projPlat == "Any CPU")
 420                                         projPlat = "AnyCPU";
 421                                 projectInfo.TargetMap.Add (new TargetInfo (solConf, solPlat), new TargetInfo (projConf, projPlat));
 422                                 projectConfigurationPlatform = projectConfigurationPlatform.NextMatch ();
 423                         }
 424                         Match projectConfigurationPlatformBuild = projectConfigurationBuildRegex.Match (section);
 425                         while (projectConfigurationPlatformBuild.Success) {
 426                                 Guid guid = new Guid (projectConfigurationPlatformBuild.Groups[1].Value);
 427                                 ProjectInfo projectInfo;
 428                                 if (!projectInfos.TryGetValue (guid, out projectInfo)) {
 429                                         if (!missingGuids.Contains (guid)) {
 430                                                 RaiseWarning (0, string.Format("Failed to find project {0}", guid));
 431                                                 missingGuids.Add (guid);
 432                                         }
 433                                         projectConfigurationPlatformBuild = projectConfigurationPlatformBuild.NextMatch ();
 434                                         continue;
 435                                 }
 436                                 string solConf = projectConfigurationPlatformBuild.Groups[2].Value;
 437                                 string solPlat = projectConfigurationPlatformBuild.Groups[3].Value;
 438                                 string projConf = projectConfigurationPlatformBuild.Groups[4].Value;
 439                                 string projPlat = projectConfigurationPlatformBuild.Groups[5].Value;
 440                                 // hack, what are they doing here?
 441                                 if (projPlat == "Any CPU")
 442                                         projPlat = "AnyCPU";
 443                                 projectInfo.TargetMap[new TargetInfo (solConf, solPlat)] = new TargetInfo (projConf, projPlat, true);
 444                                 projectConfigurationPlatformBuild = projectConfigurationPlatformBuild.NextMatch ();
 445                         }
 446                 }
 447
 448                 void ParseSolutionProperties (string section)
 449                 {
 450                 }
 451
 452                 void AddCurrentSolutionConfigurationContents (ProjectRootElement p, List<TargetInfo> solutionTargets,
 453                                 Dictionary<Guid, ProjectInfo> projectInfos,
 454                                 Dictionary<Guid, ProjectInfo> websiteProjectInfos)
 455                 {
 456                         TargetInfo default_target_info = new TargetInfo ("Debug", "Any CPU");
 457                         if (solutionTargets.Count > 0) {
 458                                 bool found = false;
 459                                 foreach (TargetInfo tinfo in solutionTargets) {
 460                                         if (String.Compare (tinfo.Platform, "Mixed Platforms") == 0) {
 461                                                 default_target_info = tinfo;
 462                                                 found = true;
 463                                                 break;
 464                                         }
 465                                 }
 466
 467                                 if (!found)
 468                                         default_target_info = solutionTargets [0];
 469                         }
 470
 471                         AddDefaultSolutionConfiguration (p, default_target_info);
 472
 473                         foreach (TargetInfo solutionTarget in solutionTargets) {
 474                                 var platformPropertyGroup = p.AddPropertyGroup ();
 475                                 platformPropertyGroup.Condition = string.Format (
 476                                         " ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ",
 477                                         solutionTarget.Configuration,
 478                                         solutionTarget.Platform
 479                                         );
 480
 481                                 StringBuilder solutionConfigurationContents = new StringBuilder ();
 482                                 solutionConfigurationContents.Append ("<SolutionConfiguration xmlns=\"\">");
 483                                 foreach (KeyValuePair<Guid, ProjectInfo> projectInfo in projectInfos) {
 484                                         AddProjectConfigurationItems (projectInfo.Key, projectInfo.Value, solutionTarget, solutionConfigurationContents);
 485                                 }
 486                                 solutionConfigurationContents.Append ("</SolutionConfiguration>");
 487
 488                                 platformPropertyGroup.AddProperty ("CurrentSolutionConfigurationContents",
 489                                                 solutionConfigurationContents.ToString ());
 490                         }
 491                 }
 492
 493                 void AddProjectReferences (ProjectRootElement p, Dictionary<Guid, ProjectInfo> projectInfos)
 494                 {
 495                         var big = p.AddItemGroup ();
 496                         foreach (KeyValuePair<Guid, ProjectInfo> pair in projectInfos)
 497                                 big.AddItem ("ProjectReference", pair.Value.FileName);
 498                 }
 499
 500                 void AddProjectConfigurationItems (Guid guid, ProjectInfo projectInfo, TargetInfo solutionTarget,
 501                                 StringBuilder solutionConfigurationContents)
 502                 {
 503                         foreach (KeyValuePair<TargetInfo, TargetInfo> targetInfo in projectInfo.TargetMap) {
 504                                 if (solutionTarget.Configuration == targetInfo.Key.Configuration &&
 505                                                 solutionTarget.Platform == targetInfo.Key.Platform) {
 506                                         solutionConfigurationContents.AppendFormat (
 507                                                         "<ProjectConfiguration Project=\"{0}\">{1}|{2}</ProjectConfiguration>",
 508                                         guid.ToString ("B").ToUpper (), targetInfo.Value.Configuration, targetInfo.Value.Platform);
 509                                 }
 510                         }
 511                 }
 512
 513                 void AddDefaultSolutionConfiguration (ProjectRootElement p, TargetInfo target)
 514                 {
 515                         var configurationPropertyGroup = p.AddPropertyGroup ();
 516                         //configurationPropertyGroup.PropertiesReversed = true;
 517                         configurationPropertyGroup.Condition = " '$(Configuration)' == '' ";
 518                         configurationPropertyGroup.AddProperty ("Configuration", target.Configuration);
 519
 520                         var platformPropertyGroup = p.AddPropertyGroup ();
 521                         //platformPropertyGroup.PropertiesReversed = true;
 522                         platformPropertyGroup.Condition = " '$(Platform)' == '' ";
 523                         platformPropertyGroup.AddProperty ("Platform", target.Platform);
 524
 525                         // emit default for AspNetConfiguration also
 526                         var aspNetConfigurationPropertyGroup = p.AddPropertyGroup ();
 527                         //aspNetConfigurationPropertyGroup.PropertiesReversed = true;
 528                         aspNetConfigurationPropertyGroup.Condition = " ('$(AspNetConfiguration)' == '') ";
 529                         aspNetConfigurationPropertyGroup.AddProperty ("AspNetConfiguration", "$(Configuration)");
 530                 }
 531
 532                 void AddWarningForMissingProjectConfiguration (ProjectTargetElement target, string slnConfig, string slnPlatform, string projectName)
 533                 {
 534                         var task = target.AddTask ("Warning");
 535                         task.SetParameter ("Text",
 536                                         String.Format ("The project configuration for project '{0}' corresponding " +
 537                                                 "to the solution configuration '{1}|{2}' was not found in the solution file.",
 538                                                 projectName, slnConfig, slnPlatform));
 539                         task.Condition = String.Format ("('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}')",
 540                                                 slnConfig, slnPlatform);
 541
 542                 }
 543
 544                 // Website project methods
 545
 546                 void AddWebsiteProperties (ProjectRootElement p, Dictionary<Guid, ProjectInfo> websiteProjectInfos,
 547                                 Dictionary<Guid, ProjectInfo> projectInfos)
 548                 {
 549                         var propertyGroupByConfig = new Dictionary<string, ProjectPropertyGroupElement> ();
 550                         foreach (KeyValuePair<Guid, ProjectInfo> infoPair in websiteProjectInfos) {
 551                                 ProjectInfo info = infoPair.Value;
 552                                 string projectGuid = infoPair.Key.ToString ();
 553
 554                                 ProjectSection section;
 555                                 if (!info.ProjectSections.TryGetValue ("WebsiteProperties", out section)) {
 556                                         RaiseWarning (0, String.Format ("Website project '{0}' does not have the required project section: WebsiteProperties. Ignoring project.", info.Name));
 557                                         return;
 558                                 }
 559
 560                                 //parse project references
 561                                 string [] ref_guids = null;
 562                                 string references;
 563                                 if (section.Properties.TryGetValue ("ProjectReferences", out references)) {
 564                                         ref_guids = references.Split (new char [] {';'}, StringSplitOptions.RemoveEmptyEntries);
 565                                         for (int i = 0; i < ref_guids.Length; i ++) {
 566                                                 // "{guid}|foo.dll"
 567                                                 ref_guids [i] = ref_guids [i].Split ('|') [0];
 568
 569                                                 Guid r_guid = new Guid (ref_guids [i]);
 570                                                 ProjectInfo ref_info;
 571                                                 if (projectInfos.TryGetValue (r_guid, out ref_info))
 572                                                         // ignore if not found
 573                                                         info.Dependencies [r_guid] = ref_info;
 574                                         }
 575                                 }
 576
 577                                 foreach (KeyValuePair<string, string> pair in section.Properties) {
 578                                         //looking for -- ConfigName.AspNetCompiler.PropName
 579                                         string [] parts = pair.Key.Split ('.');
 580                                         if (parts.Length != 3 || String.Compare (parts [1], "AspNetCompiler") != 0)
 581                                                 continue;
 582
 583                                         string config = parts [0];
 584                                         string propertyName = parts [2];
 585
 586                                         ProjectPropertyGroupElement bpg;
 587                                         if (!propertyGroupByConfig.TryGetValue (config, out bpg)) {
 588                                                 bpg = p.AddPropertyGroup ();
 589                                                 //bpg.PropertiesReversed = true;
 590                                                 bpg.Condition = String.Format (" '$(AspNetConfiguration)' == '{0}' ", config);
 591                                                 propertyGroupByConfig [config] = bpg;
 592                                         }
 593
 594                                         bpg.AddProperty (String.Format ("Project_{0}_AspNet{1}", projectGuid, propertyName),
 595                                                                 pair.Value);
 596
 597                                         if (!info.AspNetConfigurations.Contains (config))
 598                                                 info.AspNetConfigurations.Add (config);
 599                                 }
 600                         }
 601                 }
 602
 603                 // For WebSite projects
 604                 // The main "Build" target:
 605                 //      1. builds all non-website projects
 606                 //      2. calls target for website project
 607                 //              - gets target path for the referenced projects
 608                 //              - Resolves dependencies, satellites etc for the
 609                 //                referenced project assemblies, and copies them
 610                 //                to bin/ folder
 611                 void AddWebsiteTargets (ProjectRootElement p, Dictionary<Guid, ProjectInfo> websiteProjectInfos,
 612                                 Dictionary<Guid, ProjectInfo> projectInfos, List<ProjectInfo>[] infosByLevel,
 613                                 List<TargetInfo> solutionTargets)
 614                 {
 615                         foreach (ProjectInfo w_info in websiteProjectInfos.Values) {
 616                                 // gets a linear list of dependencies
 617                                 List<ProjectInfo> depInfos = new List<ProjectInfo> ();
 618                                 foreach (List<ProjectInfo> pinfos in infosByLevel) {
 619                                         foreach (ProjectInfo pinfo in pinfos)
 620                                                 if (w_info.Dependencies.ContainsKey (pinfo.Guid))
 621                                                         depInfos.Add (pinfo);
 622                                 }
 623
 624                                 foreach (string buildTarget in new string [] {"Build", "Rebuild"})
 625                                         AddWebsiteTarget (p, w_info, projectInfos, depInfos, solutionTargets, buildTarget);
 626
 627                                 // clean/publish are not supported for website projects
 628                                 foreach (string buildTarget in new string [] {"Clean", "Publish"})
 629                                         AddWebsiteUnsupportedTarget (p, w_info, depInfos, buildTarget);
 630                         }
 631                 }
 632
 633                 void AddWebsiteTarget (ProjectRootElement p, ProjectInfo webProjectInfo,
 634                                 Dictionary<Guid, ProjectInfo> projectInfos, List<ProjectInfo> depInfos,
 635                                 List<TargetInfo> solutionTargets, string buildTarget)
 636                 {
 637                         string w_guid = webProjectInfo.Guid.ToString ().ToUpper ();
 638
 639                         var target = p.AddTarget (GetTargetNameForProject (webProjectInfo.Name, buildTarget));
 640                         target.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 641                         target.DependsOnTargets = GetWebsiteDependsOnTarget (depInfos, buildTarget);
 642
 643                         // this item collects all the references
 644                         string final_ref_item = String.Format ("Project_{0}_References{1}", w_guid,
 645                                                         buildTarget != "Build" ? "_" + buildTarget : String.Empty);
 646
 647                         foreach (TargetInfo targetInfo in solutionTargets) {
 648                                 int ref_num = 0;
 649                                 foreach (ProjectInfo depInfo in depInfos) {
 650                                         TargetInfo projectTargetInfo;
 651                                         if (!depInfo.TargetMap.TryGetValue (targetInfo, out projectTargetInfo))
 652                                                 // Ignore, no config, so no target path
 653                                                 continue;
 654
 655                                         // GetTargetPath from the referenced project
 656                                         AddWebsiteMSBuildTaskForReference (target, depInfo, projectTargetInfo, targetInfo,
 657                                                         final_ref_item, ref_num);
 658                                         ref_num ++;
 659                                 }
 660                         }
 661
 662                         // resolve the references
 663                         AddWebsiteResolveAndCopyReferencesTasks (target, webProjectInfo, final_ref_item, w_guid);
 664                 }
 665
 666                 // emits the MSBuild task to GetTargetPath for the referenced project
 667                 void AddWebsiteMSBuildTaskForReference (ProjectTargetElement target, ProjectInfo depInfo, TargetInfo projectTargetInfo,
 668                                 TargetInfo solutionTargetInfo, string final_ref_item, int ref_num)
 669                 {
 670                         var task = target.AddTask ("MSBuild");
 671                         task.SetParameter ("Projects", depInfo.FileName);
 672                         task.SetParameter ("Targets", "GetTargetPath");
 673
 674                         task.SetParameter ("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));
 675                         task.Condition = string.Format (" ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ", solutionTargetInfo.Configuration, solutionTargetInfo.Platform);
 676
 677                         string ref_item = String.Format ("{0}_{1}",
 678                                                 final_ref_item, ref_num);
 679
 680                         task.AddOutputItem ("TargetOutputs", ref_item);
 681
 682                         task = target.AddTask ("CreateItem");
 683                         task.SetParameter ("Include", String.Format ("@({0})", ref_item));
 684                         task.SetParameter ("AdditionalMetadata", String.Format ("Guid={{{0}}}",
 685                                                 depInfo.Guid.ToString ().ToUpper ()));
 686                         task.AddOutputItem ("Include", final_ref_item);
 687                 }
 688
 689                 void AddWebsiteResolveAndCopyReferencesTasks (ProjectTargetElement target, ProjectInfo webProjectInfo,
 690                                 string final_ref_item, string w_guid)
 691                 {
 692                         var task = target.AddTask ("ResolveAssemblyReference");
 693                         task.SetParameter ("Assemblies", String.Format ("@({0}->'%(FullPath)')", final_ref_item));
 694                         task.SetParameter ("TargetFrameworkDirectories", "$(TargetFrameworkPath)");
 695                         task.SetParameter ("SearchPaths", "{RawFileName};{TargetFrameworkDirectory};{GAC}");
 696                         task.SetParameter ("FindDependencies", "true");
 697                         task.SetParameter ("FindSatellites", "true");
 698                         task.SetParameter ("FindRelatedFiles", "true");
 699                         task.Condition = String.Format ("Exists ('%({0}.Identity)')", final_ref_item);
 700
 701                         string copylocal_item = String.Format ("{0}_CopyLocalFiles", final_ref_item);
 702                         task.AddOutputItem ("CopyLocalFiles", copylocal_item);
 703
 704                         // Copy the references
 705                         task = target.AddTask ("Copy");
 706                         task.SetParameter ("SourceFiles", String.Format ("@({0})", copylocal_item));
 707                         task.SetParameter ("DestinationFiles", String.Format (
 708                                                 "@({0}->'$(Project_{1}_AspNetPhysicalPath)\\Bin\\%(DestinationSubDirectory)%(Filename)%(Extension)')",
 709                                                 copylocal_item, w_guid));
 710
 711                         // AspNetConfiguration, is config for the website project, useful
 712                         // for overriding from command line
 713                         StringBuilder cond = new StringBuilder ();
 714                         foreach (string config in webProjectInfo.AspNetConfigurations) {
 715                                 if (cond.Length > 0)
 716                                         cond.Append (" or ");
 717                                 cond.AppendFormat (" ('$(AspNetConfiguration)' == '{0}') ", config);
 718                         }
 719                         task.Condition = cond.ToString ();
 720
 721                         task = target.AddTask ("Message");
 722                         cond = new StringBuilder ();
 723                         foreach (string config in webProjectInfo.AspNetConfigurations) {
 724                                 if (cond.Length > 0)
 725                                         cond.Append (" and ");
 726                                 cond.AppendFormat (" ('$(AspNetConfiguration)' != '{0}') ", config);
 727                         }
 728                         task.Condition = cond.ToString ();
 729                         task.SetParameter ("Text", "Skipping as the '$(AspNetConfiguration)' configuration is " +
 730                                                 "not supported by this website project.");
 731                 }
 732
 733                 void AddWebsiteUnsupportedTarget (ProjectRootElement p, ProjectInfo webProjectInfo, List<ProjectInfo> depInfos,
 734                                 string buildTarget)
 735                 {
 736                         var target = p.AddTarget (GetTargetNameForProject (webProjectInfo.Name, buildTarget));
 737                         target.DependsOnTargets = GetWebsiteDependsOnTarget (depInfos, buildTarget);
 738
 739                         var task = target.AddTask ("Message");
 740                         task.SetParameter ("Text", String.Format (
 741                                                 "Target '{0}' not support for website projects", buildTarget));
 742                 }
 743
 744                 string GetWebsiteDependsOnTarget (List<ProjectInfo> depInfos, string buildTarget)
 745                 {
 746                         StringBuilder deps = new StringBuilder ();
 747                         foreach (ProjectInfo pinfo in depInfos) {
 748                                 if (deps.Length > 0)
 749                                         deps.Append (";");
 750                                 deps.Append (GetTargetNameForProject (pinfo.Name, buildTarget));
 751                         }
 752                         deps.Append (";GetFrameworkPath");
 753                         return deps.ToString ();
 754                 }
 755
 756                 void AddGetFrameworkPathTarget (ProjectRootElement p)
 757                 {
 758                         var t = p.AddTarget ("GetFrameworkPath");
 759                         var task = t.AddTask ("GetFrameworkPath");
 760                         task.AddOutputProperty ("Path", "TargetFrameworkPath");
 761                 }
 762
 763                 void AddValidateSolutionConfiguration (ProjectRootElement p)
 764                 {
 765                         var t = p.AddTarget ("ValidateSolutionConfiguration");
 766                         var task = t.AddTask ("Warning");
 767                         task.SetParameter ("Text", "On windows, an environment variable 'Platform' is set to MCD sometimes, and this overrides the Platform property" +
 768                                                 " for Mono msbuild, which could be an invalid Platform for this solution file. And so you are getting the following error." +
 769                                                 " You could override it by either setting the environment variable to nothing, as\n" +
 770                                                 "   set Platform=\n" +
 771                                                 "Or explicity specify its value on the command line, as\n" +
 772                                                 "   msbuild Foo.sln /p:Platform=Release");
 773                         task.Condition = "('$(CurrentSolutionConfigurationContents)' == '') and ('$(SkipInvalidConfigurations)' != 'true')" +
 774                                         " and '$(Platform)' == 'MCD' and '$(OS)' == 'Windows_NT'";
 775
 776                         task = t.AddTask ("Error");
 777                         task.SetParameter ("Text", "Invalid solution configuration and platform: \"$(Configuration)|$(Platform)\".");
 778                         task.Condition = "('$(CurrentSolutionConfigurationContents)' == '') and ('$(SkipInvalidConfigurations)' != 'true')";
 779                         task = t.AddTask ("Warning");
 780                         task.SetParameter ("Text", "Invalid solution configuration and platform: \"$(Configuration)|$(Platform)\".");
 781                         task.Condition = "('$(CurrentSolutionConfigurationContents)' == '') and ('$(SkipInvalidConfigurations)' == 'true')";
 782                         task = t.AddTask ("Message");
 783                         task.SetParameter ("Text", "Building solution configuration \"$(Configuration)|$(Platform)\".");
 784                         task.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 785                 }
 786
 787                 void AddProjectTargets (ProjectRootElement p, List<TargetInfo> solutionTargets, Dictionary<Guid, ProjectInfo> projectInfos)
 788                 {
 789                         foreach (KeyValuePair<Guid, ProjectInfo> projectInfo in projectInfos) {
 790                                 ProjectInfo project = projectInfo.Value;
 791                                 foreach (string buildTarget in buildTargets) {
 792                                         string target_name = GetTargetNameForProject (project.Name, buildTarget);
 793                                         bool is_build_or_rebuild = buildTarget == "Build" || buildTarget == "Rebuild";
 794                                         var target = p.AddTarget (target_name);
 795                                         target.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 796
 797                                         if (is_build_or_rebuild)
 798                                                 target.Outputs = "@(CollectedBuildOutput)";
 799                                         if (project.Dependencies.Count > 0)
 800                                                 target.DependsOnTargets = String.Join (";",
 801                                                                 project.Dependencies.Values.Select (
 802                                                                         di => GetTargetNameForProject (di.Name, buildTarget)).ToArray ());
 803
 804                                         foreach (TargetInfo targetInfo in solutionTargets) {
 805                                                 ProjectTaskElement task = null;
 806                                                 TargetInfo projectTargetInfo;
 807                                                 if (!project.TargetMap.TryGetValue (targetInfo, out projectTargetInfo)) {
 808                                                         AddWarningForMissingProjectConfiguration (target, targetInfo.Configuration,
 809                                                                         targetInfo.Platform, project.Name);
 810                                                         continue;
 811                                                 }
 812                                                 if (projectTargetInfo.Build) {
 813                                                         task = target.AddTask ("MSBuild");
 814                                                         task.SetParameter ("Projects", project.FileName);
 815                                                         task.SetParameter ("ToolsVersion", "$(ProjectToolsVersion)");
 816                                                         if (is_build_or_rebuild)
 817                                                                 task.AddOutputItem ("TargetOutputs", "CollectedBuildOutput");
 818
 819                                                         if (buildTarget != "Build")
 820                                                                 task.SetParameter ("Targets", buildTarget);
 821                                                         task.SetParameter ("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));
 822                                                 } else {
 823                                                         task = target.AddTask ("Message");
 824                                                         task.SetParameter ("Text", string.Format ("Project \"{0}\" is disabled for solution configuration \"{1}|{2}\".", project.Name, targetInfo.Configuration, targetInfo.Platform));
 825                                                 }
 826                                                 task.Condition = string.Format (" ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ", targetInfo.Configuration, targetInfo.Platform);
 827                                         }
 828                                 }
 829                         }
 830                 }
 831
 832
 833                 string GetTargetNameForProject (string projectName, string buildTarget)
 834                 {
 835                         //FIXME: hack
 836                         projectName = projectName.Replace ("\\", "/").Replace (".", "_");
 837                         string target_name = projectName +
 838                                         (buildTarget == "Build" ? string.Empty : ":" + buildTarget);
 839
 840                         if (IsBuildTargetName (projectName))
 841                                 target_name = "Solution:" + target_name;
 842
 843                         return target_name;
 844                 }
 845
 846                 bool IsBuildTargetName (string name)
 847                 {
 848                         foreach (string tgt in buildTargets)
 849                                 if (name == tgt)
 850                                         return true;
 851                         return false;
 852                 }
 853
 854                 // returns number of levels
 855                 int AddBuildLevels (ProjectRootElement p, List<TargetInfo> solutionTargets, Dictionary<Guid, ProjectInfo> projectInfos,
 856                                 ref List<ProjectInfo>[] infosByLevel)
 857                 {
 858                         infosByLevel = TopologicalSort<ProjectInfo> (projectInfos.Values);
 859
 860                         foreach (TargetInfo targetInfo in solutionTargets) {
 861                                 var big = p.AddItemGroup ();
 862                                 big.Condition = String.Format (" ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ",
 863                                                 targetInfo.Configuration, targetInfo.Platform);
 864
 865                                 //FIXME: every level has projects that can be built in parallel.
 866                                 //       levels are ordered on the basis of the dependency graph
 867
 868                                 for (int i = 0; i < infosByLevel.Length; i ++) {
 869                                         string build_level = String.Format ("BuildLevel{0}", i);
 870                                         string skip_level = String.Format ("SkipLevel{0}", i);
 871                                         string missing_level = String.Format ("MissingConfigLevel{0}", i);
 872
 873                                         foreach (ProjectInfo projectInfo in infosByLevel [i]) {
 874                                                 TargetInfo projectTargetInfo;
 875                                                 if (!projectInfo.TargetMap.TryGetValue (targetInfo, out projectTargetInfo)) {
 876                                                         // missing project config
 877                                                         big.AddItem (missing_level, projectInfo.Name);
 878                                                         continue;
 879                                                 }
 880
 881                                                 if (projectTargetInfo.Build) {
 882                                                         var item = big.AddItem (build_level, projectInfo.FileName);
 883                                                         item.AddMetadata ("Configuration", projectTargetInfo.Configuration);
 884                                                         item.AddMetadata ("Platform", projectTargetInfo.Platform);
 885                                                 } else {
 886                                                         // build disabled
 887                                                         big.AddItem (skip_level, projectInfo.Name);
 888                                                 }
 889                                         }
 890                                 }
 891                         }
 892
 893                         return infosByLevel.Length;
 894                 }
 895
 896                 void AddSolutionTargets (ProjectRootElement p, int num_levels, IEnumerable<ProjectInfo> websiteProjectInfos)
 897                 {
 898                         foreach (string buildTarget in buildTargets) {
 899                                 var t = p.AddTarget (buildTarget);
 900                                 bool is_build_or_rebuild = buildTarget == "Build" || buildTarget == "Rebuild";
 901
 902                                 t.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 903                                 if (is_build_or_rebuild)
 904                                         t.Outputs = "@(CollectedBuildOutput)";
 905
 906                                 ProjectTaskElement task = null;
 907                                 for (int i = 0; i < num_levels; i ++) {
 908                                         string level_str = String.Format ("BuildLevel{0}", i);
 909                                         task = t.AddTask ("MSBuild");
 910                                         task.SetParameter ("Condition", String.Format ("'@({0})' != ''", level_str));
 911                                         task.SetParameter ("Projects", String.Format ("@({0})", level_str));
 912                                         task.SetParameter ("ToolsVersion", "$(ProjectToolsVersion)");
 913                                         task.SetParameter ("Properties",
 914                                                 string.Format ("Configuration=%(Configuration); Platform=%(Platform); BuildingSolutionFile=true; CurrentSolutionConfigurationContents=$(CurrentSolutionConfigurationContents); SolutionDir=$(SolutionDir); SolutionExt=$(SolutionExt); SolutionFileName=$(SolutionFileName); SolutionName=$(SolutionName); SolutionPath=$(SolutionPath)"));
 915                                         if (buildTarget != "Build")
 916                                                 task.SetParameter ("Targets", buildTarget);
 917                                         //FIXME: change this to BuildInParallel=true, when parallel
 918                                         //       build support gets added
 919                                         task.SetParameter ("RunEachTargetSeparately", "true");
 920                                         if (is_build_or_rebuild)
 921                                                 task.AddOutputItem ("TargetOutputs", "CollectedBuildOutput");
 922
 923                                         level_str = String.Format ("SkipLevel{0}", i);
 924                                         task = t.AddTask ("Message");
 925                                         task.Condition = String.Format ("'@({0})' != ''", level_str);
 926                                         task.SetParameter ("Text",
 927                                                 String.Format ("The project '%({0}.Identity)' is disabled for solution " +
 928                                                         "configuration '$(Configuration)|$(Platform)'.", level_str));
 929
 930                                         level_str = String.Format ("MissingConfigLevel{0}", i);
 931                                         task = t.AddTask ("Warning");
 932                                         task.Condition = String.Format ("'@({0})' != ''", level_str);
 933                                         task.SetParameter ("Text",
 934                                                 String.Format ("The project configuration for project '%({0}.Identity)' " +
 935                                                         "corresponding to the solution configuration " +
 936                                                         "'$(Configuration)|$(Platform)' was not found.", level_str));
 937                                 }
 938
 939                                 // "build" website projects also
 940                                 StringBuilder w_targets = new StringBuilder ();
 941                                 foreach (ProjectInfo info in websiteProjectInfos) {
 942                                         if (w_targets.Length > 0)
 943                                                 w_targets.Append (";");
 944                                         w_targets.Append (GetTargetNameForProject (info.Name, buildTarget));
 945                                 }
 946
 947                                 task = t.AddTask ("CallTarget");
 948                                 task.SetParameter ("Targets", w_targets.ToString ());
 949                                 task.SetParameter ("RunEachTargetSeparately", "true");
 950                         }
 951                 }
 952
 953                 // Sorts the ProjectInfo dependency graph, to obtain
 954                 // a series of build levels with projects. Projects
 955                 // in each level can be run parallel (no inter-dependency).
 956                 static List<T>[] TopologicalSort<T> (IEnumerable<T> items) where T: ProjectInfo
 957                 {
 958                         IList<T> allItems;
 959                         allItems = items as IList<T>;
 960                         if (allItems == null)
 961                                 allItems = new List<T> (items);
 962
 963                         bool[] inserted = new bool[allItems.Count];
 964                         bool[] triedToInsert = new bool[allItems.Count];
 965                         int[] levels = new int [allItems.Count];
 966
 967                         int maxdepth = 0;
 968                         for (int i = 0; i < allItems.Count; ++i) {
 969                                 int d = Insert<T> (i, allItems, levels, inserted, triedToInsert);
 970                                 if (d > maxdepth)
 971                                         maxdepth = d;
 972                         }
 973
 974                         // Separate out the project infos by build level
 975                         List<T>[] infosByLevel = new List<T>[maxdepth];
 976                         for (int i = 0; i < levels.Length; i ++) {
 977                                 int level = levels [i] - 1;
 978                                 if (infosByLevel [level] == null)
 979                                         infosByLevel [level] = new List<T> ();
 980
 981                                 infosByLevel [level].Add (allItems [i]);
 982                         }
 983
 984                         return infosByLevel;
 985                 }
 986
 987                 // returns level# for the project
 988                 static int Insert<T> (int index, IList<T> allItems, int[] levels, bool[] inserted, bool[] triedToInsert)
 989                         where T: ProjectInfo
 990                 {
 991                         if (inserted [index])
 992                                 return levels [index];
 993
 994                         if (triedToInsert[index])
 995                                 throw new InvalidOperationException (String.Format (
 996                                                 "Cyclic dependency involving project {0} found in the project dependency graph",
 997                                                 allItems [index].Name));
 998
 999                         triedToInsert[index] = true;
1000                         ProjectInfo insertItem = allItems[index];
1001
1002                         int maxdepth = 0;
1003                         foreach (ProjectInfo dependency in insertItem.Dependencies.Values) {
1004                                 for (int j = 0; j < allItems.Count; ++j) {
1005                                         ProjectInfo checkItem = allItems [j];
1006                                         if (dependency.FileName == checkItem.FileName) {
1007                                                 int d = Insert (j, allItems, levels, inserted, triedToInsert);
1008                                                 maxdepth = d > maxdepth ? d : maxdepth;
1009                                                 break;
1010                                         }
1011                                 }
1012                         }
1013                         levels [index] = maxdepth + 1;
1014                         inserted [index] = true;
1015
1016                         return levels [index];
1017                 }
1018
1019                 public static IEnumerable<string> GetAllProjectFileNames (string solutionFile)
1020                 {
1021                         StreamReader reader = new StreamReader (solutionFile);
1022                         string line = reader.ReadToEnd ();
1023                         line = line.Replace ("\r\n", "\n");
1024                         string soln_dir = Path.GetDirectoryName (solutionFile);
1025
1026                         Match m = projectRegex.Match (line);
1027                         while (m.Success) {
1028                                 if (String.Compare (m.Groups [1].Value, solutionFolderGuid,
1029                                                 StringComparison.InvariantCultureIgnoreCase) != 0)
1030                                         yield return Path.Combine (soln_dir, m.Groups [3].Value).Replace ("\\", "/");
1031
1032                                 m = m.NextMatch ();
1033                         }
1034                 }
1035         }
1036 }
1037