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 using System.Xml;
  42
  43 namespace Mono.XBuild.CommandLine {
  44         class ProjectInfo {
  45                 public string Name;
  46                 public string FileName;
  47                 public Guid Guid;
  48
  49                 public ProjectInfo (string name, string fileName)
  50                 {
  51                         Name = name;
  52                         FileName = fileName;
  53                 }
  54
  55                 public Dictionary<TargetInfo, TargetInfo> TargetMap = new Dictionary<TargetInfo, TargetInfo> ();
  56                 public Dictionary<Guid, ProjectInfo> Dependencies = new Dictionary<Guid, ProjectInfo> ();
  57                 public Dictionary<string, ProjectSection> ProjectSections = new Dictionary<string, ProjectSection> ();
  58                 public List<string> AspNetConfigurations = new List<string> ();
  59         }
  60
  61         class ProjectSection {
  62                 public string Name;
  63                 public Dictionary<string, string> Properties = new Dictionary<string, string> ();
  64
  65                 public ProjectSection (string name)
  66                 {
  67                         Name = name;
  68                 }
  69         }
  70
  71         struct TargetInfo {
  72                 public string Configuration;
  73                 public string Platform;
  74                 public bool Build;
  75
  76                 public TargetInfo (string configuration, string platform)
  77                         : this (configuration, platform, false)
  78                 {
  79                 }
  80
  81                 public TargetInfo (string configuration, string platform, bool build)
  82                 {
  83                         Configuration = configuration;
  84                         Platform = platform;
  85                         Build = build;
  86                 }
  87         }
  88
  89
  90         internal delegate void RaiseWarningHandler (int errorNumber, string message);
  91
  92         class SolutionParser {
  93                 static string[] buildTargets = new string[] { "Build", "Clean", "Rebuild", "Publish" };
  94
  95                 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}}";
  96
  97                 static Regex slnVersionRegex = new Regex (@"Microsoft Visual Studio Solution File, Format Version (\d?\d.\d\d)");
  98                 static Regex projectRegex = new Regex ("Project\\(\"(" + guidExpression + ")\"\\) = \"(.*?)\", \"(.*?)\", \"(" + guidExpression + ")\"(\\s*?)((\\s*?)ProjectSection\\((.*?)\\) = (.*?)EndProjectSection(\\s*?))*(\\s*?)(EndProject)?", RegexOptions.Singleline);
  99                 static Regex projectDependenciesRegex = new Regex ("ProjectSection\\((.*?)\\) = \\w*(.*?)EndProjectSection", RegexOptions.Singleline);
 100                 static Regex projectDependencyRegex = new Regex ("\\s*(" + guidExpression + ") = (" + guidExpression + ")");
 101                 static Regex projectSectionPropertiesRegex = new Regex ("\\s*(?<name>.*) = \"(?<value>.*)\"");
 102
 103                 static Regex globalRegex = new Regex ("Global(.*)EndGlobal", RegexOptions.Singleline);
 104                 static Regex globalSectionRegex = new Regex ("GlobalSection\\((.*?)\\) = \\w*(.*?)EndGlobalSection", RegexOptions.Singleline);
 105
 106                 static Regex solutionConfigurationRegex = new Regex ("\\s*(.*?)\\|(.*?) = (.*?)\\|(.+)");
 107                 static Regex projectConfigurationActiveCfgRegex = new Regex ("\\s*(" + guidExpression + ")\\.(.+?)\\|(.+?)\\.ActiveCfg = (.+?)\\|(.+)");
 108                 static Regex projectConfigurationBuildRegex = new Regex ("\\s*(" + guidExpression + ")\\.(.*?)\\|(.*?)\\.Build\\.0 = (.*?)\\|(.+)");
 109
 110                 static string solutionFolderGuid = "{2150E333-8FDC-42A3-9474-1A3956D46DE8}";
 111                 static string vcprojGuid = "{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}";
 112                 static string websiteProjectGuid = "{E24C65DC-7377-472B-9ABA-BC803B73C61A}";
 113
 114                 RaiseWarningHandler RaiseWarning;
 115
 116                 public void ParseSolution (string file, ProjectCollection projects, ProjectRootElement p, RaiseWarningHandler RaiseWarning)
 117                 {
 118                         this.RaiseWarning = RaiseWarning;
 119                         EmitBeforeImports (p, file);
 120
 121                         AddGeneralSettings (file, p);
 122
 123                         StreamReader reader = new StreamReader (file);
 124                         string slnVersion = GetSlnFileVersion (reader);
 125                         if (slnVersion == "12.00")
 126                                 projects.DefaultToolsVersion = "12.0";
 127                         else if (slnVersion == "11.00")
 128                                 projects.DefaultToolsVersion = "4.0";
 129                         else if (slnVersion == "10.00")
 130                                 projects.DefaultToolsVersion = "3.5";
 131                         else
 132                                 projects.DefaultToolsVersion = "2.0";
 133
 134                         string line = reader.ReadToEnd ();
 135                         line = line.Replace ("\r\n", "\n");
 136                         string solutionDir = Path.GetDirectoryName (file);
 137
 138                         List<TargetInfo> solutionTargets = new List<TargetInfo> ();
 139                         Dictionary<Guid, ProjectInfo> projectInfos = new Dictionary<Guid, ProjectInfo> ();
 140                         Dictionary<Guid, ProjectInfo> websiteProjectInfos = new Dictionary<Guid, ProjectInfo> ();
 141                         List<ProjectInfo>[] infosByLevel = null;
 142                         Dictionary<Guid, ProjectInfo> unsupportedProjectInfos = new Dictionary<Guid, ProjectInfo> ();
 143
 144                         Match m = projectRegex.Match (line);
 145                         while (m.Success) {
 146                                 ProjectInfo projectInfo = new ProjectInfo (m.Groups[2].Value,
 147                                                                 Path.GetFullPath (Path.Combine (solutionDir,
 148                                                                         m.Groups [3].Value.Replace ('\\', Path.DirectorySeparatorChar))));
 149                                 if (String.Compare (m.Groups [1].Value, solutionFolderGuid,
 150                                                 StringComparison.InvariantCultureIgnoreCase) == 0) {
 151                                         // Ignore solution folders
 152                                         m = m.NextMatch ();
 153                                         continue;
 154                                 }
 155
 156                                 projectInfo.Guid = new Guid (m.Groups [4].Value);
 157
 158                                 if (String.Compare (m.Groups [1].Value, vcprojGuid,
 159                                                 StringComparison.InvariantCultureIgnoreCase) == 0) {
 160                                         // Ignore vcproj
 161                                         RaiseWarning (0, string.Format("Ignoring vcproj '{0}'.", projectInfo.Name));
 162
 163                                         unsupportedProjectInfos [projectInfo.Guid] = projectInfo;
 164                                         m = m.NextMatch ();
 165                                         continue;
 166                                 }
 167
 168                                 if (String.Compare (m.Groups [1].Value, websiteProjectGuid,
 169                                                 StringComparison.InvariantCultureIgnoreCase) == 0)
 170                                         websiteProjectInfos.Add (new Guid (m.Groups[4].Value), projectInfo);
 171                                 else
 172                                         projectInfos.Add (projectInfo.Guid, projectInfo);
 173
 174                                 Match projectSectionMatch = projectDependenciesRegex.Match (m.Groups[6].Value);
 175                                 while (projectSectionMatch.Success) {
 176                                         string section_name = projectSectionMatch.Groups [1].Value;
 177                                         if (String.Compare (section_name, "ProjectDependencies") == 0) {
 178                                                 Match projectDependencyMatch = projectDependencyRegex.Match (projectSectionMatch.Value);
 179                                                 while (projectDependencyMatch.Success) {
 180                                                         // we might not have projectInfo available right now, so
 181                                                         // set it to null, and fill it in later
 182                                                         projectInfo.Dependencies [new Guid (projectDependencyMatch.Groups[1].Value)] = null;
 183                                                         projectDependencyMatch = projectDependencyMatch.NextMatch ();
 184                                                 }
 185                                         } else {
 186                                                 ProjectSection section = new ProjectSection (section_name);
 187                                                 Match propertiesMatch = projectSectionPropertiesRegex.Match (
 188                                                                         projectSectionMatch.Groups [2].Value);
 189                                                 while (propertiesMatch.Success) {
 190                                                         section.Properties [propertiesMatch.Groups ["name"].Value] =
 191                                                                 propertiesMatch.Groups ["value"].Value;
 192
 193                                                         propertiesMatch = propertiesMatch.NextMatch ();
 194                                                 }
 195
 196                                                 projectInfo.ProjectSections [section_name] = section;
 197                                         }
 198                                         projectSectionMatch = projectSectionMatch.NextMatch ();
 199                                 }
 200                                 m = m.NextMatch ();
 201                         }
 202
 203                         foreach (ProjectInfo projectInfo in projectInfos.Values) {
 204                                 string filename = projectInfo.FileName;
 205                                 string projectDir = Path.GetDirectoryName (filename);
 206
 207                                 if (!File.Exists (filename)) {
 208                                         RaiseWarning (0, String.Format ("Project file {0} referenced in the solution file, " +
 209                                                                 "not found. Ignoring.", filename));
 210                                         continue;
 211                                 }
 212
 213                                 Project currentProject;
 214                                 try {
 215                                         using (var xmlReader = XmlReader.Create (filename)) {
 216                                                 var root = ProjectRootElement.Create (xmlReader, projects);
 217                                                 root.FullPath = filename;
 218                                                 currentProject = new Project (root, null, null, projects, ProjectLoadSettings.IgnoreMissingImports);
 219                                         }
 220                                 } catch (InvalidProjectFileException e) {
 221                                         RaiseWarning (0, e.Message);
 222                                         continue;
 223                                 }
 224
 225                                 foreach (var bi in currentProject.GetItems ("ProjectReference")) {
 226                                         ProjectInfo info = null;
 227                                         string projectReferenceGuid = bi.GetMetadataValue ("Project");
 228                                         bool hasGuid = !String.IsNullOrEmpty (projectReferenceGuid);
 229
 230                                         // try to resolve the ProjectReference by GUID
 231                                         // and fallback to project filename
 232
 233                                         if (hasGuid) {
 234                                                 Guid guid = new Guid (projectReferenceGuid);
 235                                                 projectInfos.TryGetValue (guid, out info);
 236                                                 if (info == null && unsupportedProjectInfos.TryGetValue (guid, out info)) {
 237                                                         RaiseWarning (0, String.Format (
 238                                                                         "{0}: ProjectReference '{1}' is of an unsupported type. Ignoring.",
 239                                                                 filename, bi.EvaluatedInclude));
 240                                                         continue;
 241                                                 }
 242                                         }
 243
 244                                         if (info == null || !hasGuid) {
 245                                                 // Project not found by guid or guid not available
 246                                                 // Try to find by project file
 247
 248                                                 string fullpath = Path.GetFullPath (Path.Combine (projectDir, bi.EvaluatedInclude.Replace ('\\', Path.DirectorySeparatorChar)));
 249                                                 info = projectInfos.Values.FirstOrDefault (pi => pi.FileName == fullpath);
 250
 251                                                 if (info == null) {
 252                                                         if (unsupportedProjectInfos.Values.Any (pi => pi.FileName == fullpath))
 253                                                                 RaiseWarning (0, String.Format (
 254                                                                                 "{0}: ProjectReference '{1}' is of an unsupported type. Ignoring.",
 255                                                                         filename, bi.EvaluatedInclude));
 256                                                         else
 257                                                                 RaiseWarning (0, String.Format (
 258                                                                                 "{0}: ProjectReference '{1}' not found, neither by guid '{2}' nor by project file name '{3}'.",
 259                                                                         filename, bi.EvaluatedInclude, projectReferenceGuid.Replace ("{", "").Replace ("}", ""), fullpath));
 260                                                 }
 261
 262                                         }
 263
 264                                         if (info != null)
 265                                                 projectInfo.Dependencies [info.Guid] = info;
 266                                 }
 267                         }
 268
 269                         // fill in the project info for deps found in the .sln file
 270                         foreach (ProjectInfo projectInfo in projectInfos.Values) {
 271                                 List<Guid> missingInfos = new List<Guid> ();
 272                                 foreach (KeyValuePair<Guid, ProjectInfo> dependency in projectInfo.Dependencies) {
 273                                         if (dependency.Value == null)
 274                                                 missingInfos.Add (dependency.Key);
 275                                 }
 276
 277                                 foreach (Guid guid in missingInfos) {
 278                                         ProjectInfo info;
 279                                         if (projectInfos.TryGetValue (guid, out info))
 280                                                 projectInfo.Dependencies [guid] = info;
 281                                         else
 282                                                 projectInfo.Dependencies.Remove (guid);
 283                                 }
 284                         }
 285
 286                         Match globalMatch = globalRegex.Match (line);
 287                         Match globalSectionMatch = globalSectionRegex.Match (globalMatch.Groups[1].Value);
 288                         while (globalSectionMatch.Success) {
 289                                 string sectionType = globalSectionMatch.Groups[1].Value;
 290                                 switch (sectionType) {
 291                                         case "SolutionConfigurationPlatforms":
 292                                                 ParseSolutionConfigurationPlatforms (globalSectionMatch.Groups[2].Value, solutionTargets);
 293                                                 break;
 294                                         case "ProjectConfigurationPlatforms":
 295                                                 ParseProjectConfigurationPlatforms (globalSectionMatch.Groups[2].Value,
 296                                                                 projectInfos, websiteProjectInfos);
 297                                                 break;
 298                                         case "SolutionProperties":
 299                                                 ParseSolutionProperties (globalSectionMatch.Groups[2].Value);
 300                                                 break;
 301                                         case "NestedProjects":
 302                                                 break;
 303                                         case "MonoDevelopProperties":
 304                                                 break;
 305                                         default:
 306                                                 RaiseWarning (0, string.Format("Don't know how to handle GlobalSection {0}, Ignoring.", sectionType));
 307                                                 break;
 308                                 }
 309                                 globalSectionMatch = globalSectionMatch.NextMatch ();
 310                         }
 311
 312                         int num_levels = AddBuildLevels (p, solutionTargets, projectInfos, ref infosByLevel);
 313
 314                         AddCurrentSolutionConfigurationContents (p, solutionTargets, projectInfos, websiteProjectInfos);
 315                         AddProjectReferences (p, projectInfos);
 316                         AddWebsiteProperties (p, websiteProjectInfos, projectInfos);
 317                         AddValidateSolutionConfiguration (p);
 318
 319                         EmitAfterImports (p, file);
 320
 321                         AddGetFrameworkPathTarget (p);
 322                         AddWebsiteTargets (p, websiteProjectInfos, projectInfos, infosByLevel, solutionTargets);
 323                         AddProjectTargets (p, solutionTargets, projectInfos);
 324                         AddSolutionTargets (p, num_levels, websiteProjectInfos.Values);
 325                 }
 326
 327                 string GetSlnFileVersion (StreamReader reader)
 328                 {
 329                         string strInput = null;
 330                         Match match;
 331
 332                         strInput = reader.ReadLine();
 333                         if (strInput == null)
 334                                 return null;
 335
 336                         match = slnVersionRegex.Match(strInput);
 337                         if (!match.Success) {
 338                                 strInput = reader.ReadLine();
 339                                 if (strInput == null)
 340                                         return null;
 341                                 match = slnVersionRegex.Match (strInput);
 342                         }
 343
 344                         if (match.Success)
 345                                 return match.Groups[1].Value;
 346
 347                         return null;
 348                 }
 349
 350                 void EmitBeforeImports (ProjectRootElement p, string file)
 351                 {
 352 #if NET_4_0
 353                         p.AddImportGroup ().AddImport ("$(MSBuildExtensionsPath)\\$(MSBuildToolsVersion)\\SolutionFile\\ImportBefore\\*").Condition =
 354                                         "'$(ImportByWildcardBeforeSolution)' != 'false' and " +
 355                                         "Exists('$(MSBuildExtensionsPath)\\$(MSBuildToolsVersion)\\SolutionFile\\ImportBefore')";
 356 #endif
 357
 358                         string before_filename = Path.Combine (Path.GetDirectoryName (file), "before." + Path.GetFileName (file) + ".targets");
 359                         p.AddImportGroup ().AddImport (before_filename).Condition = String.Format ("Exists ('{0}')", before_filename);
 360                 }
 361
 362                 void EmitAfterImports (ProjectRootElement p, string file)
 363                 {
 364 #if NET_4_0
 365                         p.AddImportGroup ().AddImport ("$(MSBuildExtensionsPath)\\$(MSBuildToolsVersion)\\SolutionFile\\ImportAfter\\*").Condition =
 366                                         "'$(ImportByWildcardAfterSolution)' != 'false' and " +
 367                                         "Exists('$(MSBuildExtensionsPath)\\$(MSBuildToolsVersion)\\SolutionFile\\ImportAfter')";
 368 #endif
 369
 370                         string after_filename = Path.Combine (Path.GetDirectoryName (file), "after." + Path.GetFileName (file) + ".targets");
 371                         p.AddImportGroup ().AddImport (after_filename).Condition = String.Format ("Exists ('{0}')", after_filename);
 372                 }
 373
 374                 void AddGeneralSettings (string solutionFile, ProjectRootElement p)
 375                 {
 376                         p.DefaultTargets = "Build";
 377                         p.InitialTargets = "ValidateSolutionConfiguration";
 378                         //p.AddUsingTask ("CreateTemporaryVCProject", null, "Microsoft.Build.Tasks, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a");
 379                         //p.AddUsingTask ("ResolveVCProjectOutput", null, "Microsoft.Build.Tasks, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a");
 380
 381                         string solutionFilePath = Path.GetFullPath (solutionFile);
 382                         var solutionPropertyGroup = p.CreatePropertyGroupElement ();
 383                         //solutionPropertyGroup.ChildrenReversed = true;
 384                         solutionPropertyGroup.AddProperty ("SolutionDir", Path.GetDirectoryName (solutionFilePath) + Path.DirectorySeparatorChar);
 385                         solutionPropertyGroup.AddProperty ("SolutionExt", Path.GetExtension (solutionFile));
 386                         solutionPropertyGroup.AddProperty ("SolutionFileName", Path.GetFileName (solutionFile));
 387                         solutionPropertyGroup.AddProperty ("SolutionName", Path.GetFileNameWithoutExtension (solutionFile));
 388                         solutionPropertyGroup.AddProperty ("SolutionPath", solutionFilePath);
 389                 }
 390
 391                 void ParseSolutionConfigurationPlatforms (string section, List<TargetInfo> solutionTargets)
 392                 {
 393                         Match solutionConfigurationPlatform = solutionConfigurationRegex.Match (section);
 394                         while (solutionConfigurationPlatform.Success) {
 395                                 string solutionConfiguration = solutionConfigurationPlatform.Groups[1].Value;
 396                                 string solutionPlatform = solutionConfigurationPlatform.Groups[2].Value;
 397                                 solutionTargets.Add (new TargetInfo (solutionConfiguration, solutionPlatform));
 398                                 solutionConfigurationPlatform = solutionConfigurationPlatform.NextMatch ();
 399                         }
 400                 }
 401
 402                 // ignores the website projects, in the websiteProjectInfos
 403                 void ParseProjectConfigurationPlatforms (string section, Dictionary<Guid, ProjectInfo> projectInfos,
 404                                 Dictionary<Guid, ProjectInfo> websiteProjectInfos)
 405                 {
 406                         List<Guid> missingGuids = new List<Guid> ();
 407                         Match projectConfigurationPlatform = projectConfigurationActiveCfgRegex.Match (section);
 408                         while (projectConfigurationPlatform.Success) {
 409                                 Guid guid = new Guid (projectConfigurationPlatform.Groups[1].Value);
 410                                 ProjectInfo projectInfo;
 411                                 if (!projectInfos.TryGetValue (guid, out projectInfo)) {
 412                                         if (!missingGuids.Contains (guid)) {
 413                                                 if (!websiteProjectInfos.ContainsKey (guid))
 414                                                         // ignore website projects
 415                                                         RaiseWarning (0, string.Format("Failed to find project {0}", guid));
 416                                                 missingGuids.Add (guid);
 417                                         }
 418                                         projectConfigurationPlatform = projectConfigurationPlatform.NextMatch ();
 419                                         continue;
 420                                 }
 421                                 string solConf = projectConfigurationPlatform.Groups[2].Value;
 422                                 string solPlat = projectConfigurationPlatform.Groups[3].Value;
 423                                 string projConf = projectConfigurationPlatform.Groups[4].Value;
 424                                 string projPlat = projectConfigurationPlatform.Groups[5].Value;
 425                                 // hack, what are they doing here?
 426                                 if (projPlat == "Any CPU")
 427                                         projPlat = "AnyCPU";
 428                                 projectInfo.TargetMap.Add (new TargetInfo (solConf, solPlat), new TargetInfo (projConf, projPlat));
 429                                 projectConfigurationPlatform = projectConfigurationPlatform.NextMatch ();
 430                         }
 431                         Match projectConfigurationPlatformBuild = projectConfigurationBuildRegex.Match (section);
 432                         while (projectConfigurationPlatformBuild.Success) {
 433                                 Guid guid = new Guid (projectConfigurationPlatformBuild.Groups[1].Value);
 434                                 ProjectInfo projectInfo;
 435                                 if (!projectInfos.TryGetValue (guid, out projectInfo)) {
 436                                         if (!missingGuids.Contains (guid)) {
 437                                                 RaiseWarning (0, string.Format("Failed to find project {0}", guid));
 438                                                 missingGuids.Add (guid);
 439                                         }
 440                                         projectConfigurationPlatformBuild = projectConfigurationPlatformBuild.NextMatch ();
 441                                         continue;
 442                                 }
 443                                 string solConf = projectConfigurationPlatformBuild.Groups[2].Value;
 444                                 string solPlat = projectConfigurationPlatformBuild.Groups[3].Value;
 445                                 string projConf = projectConfigurationPlatformBuild.Groups[4].Value;
 446                                 string projPlat = projectConfigurationPlatformBuild.Groups[5].Value;
 447                                 // hack, what are they doing here?
 448                                 if (projPlat == "Any CPU")
 449                                         projPlat = "AnyCPU";
 450                                 projectInfo.TargetMap[new TargetInfo (solConf, solPlat)] = new TargetInfo (projConf, projPlat, true);
 451                                 projectConfigurationPlatformBuild = projectConfigurationPlatformBuild.NextMatch ();
 452                         }
 453                 }
 454
 455                 void ParseSolutionProperties (string section)
 456                 {
 457                 }
 458
 459                 void AddCurrentSolutionConfigurationContents (ProjectRootElement p, List<TargetInfo> solutionTargets,
 460                                 Dictionary<Guid, ProjectInfo> projectInfos,
 461                                 Dictionary<Guid, ProjectInfo> websiteProjectInfos)
 462                 {
 463                         TargetInfo default_target_info = new TargetInfo ("Debug", "Any CPU");
 464                         if (solutionTargets.Count > 0) {
 465                                 bool found = false;
 466                                 foreach (TargetInfo tinfo in solutionTargets) {
 467                                         if (String.Compare (tinfo.Platform, "Mixed Platforms") == 0) {
 468                                                 default_target_info = tinfo;
 469                                                 found = true;
 470                                                 break;
 471                                         }
 472                                 }
 473
 474                                 if (!found)
 475                                         default_target_info = solutionTargets [0];
 476                         }
 477
 478                         AddDefaultSolutionConfiguration (p, default_target_info);
 479
 480                         foreach (TargetInfo solutionTarget in solutionTargets) {
 481                                 var platformPropertyGroup = p.AddPropertyGroup ();
 482                                 platformPropertyGroup.Condition = string.Format (
 483                                         " ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ",
 484                                         solutionTarget.Configuration,
 485                                         solutionTarget.Platform
 486                                         );
 487
 488                                 StringBuilder solutionConfigurationContents = new StringBuilder ();
 489                                 solutionConfigurationContents.Append ("<SolutionConfiguration xmlns=\"\">");
 490                                 foreach (KeyValuePair<Guid, ProjectInfo> projectInfo in projectInfos) {
 491                                         AddProjectConfigurationItems (projectInfo.Key, projectInfo.Value, solutionTarget, solutionConfigurationContents);
 492                                 }
 493                                 solutionConfigurationContents.Append ("</SolutionConfiguration>");
 494
 495                                 platformPropertyGroup.AddProperty ("CurrentSolutionConfigurationContents",
 496                                                 solutionConfigurationContents.ToString ());
 497                         }
 498                 }
 499
 500                 void AddProjectReferences (ProjectRootElement p, Dictionary<Guid, ProjectInfo> projectInfos)
 501                 {
 502                         var big = p.AddItemGroup ();
 503                         foreach (KeyValuePair<Guid, ProjectInfo> pair in projectInfos)
 504                                 big.AddItem ("ProjectReference", pair.Value.FileName);
 505                 }
 506
 507                 void AddProjectConfigurationItems (Guid guid, ProjectInfo projectInfo, TargetInfo solutionTarget,
 508                                 StringBuilder solutionConfigurationContents)
 509                 {
 510                         foreach (KeyValuePair<TargetInfo, TargetInfo> targetInfo in projectInfo.TargetMap) {
 511                                 if (solutionTarget.Configuration == targetInfo.Key.Configuration &&
 512                                                 solutionTarget.Platform == targetInfo.Key.Platform) {
 513                                         solutionConfigurationContents.AppendFormat (
 514                                                         "<ProjectConfiguration Project=\"{0}\">{1}|{2}</ProjectConfiguration>",
 515                                         guid.ToString ("B").ToUpper (), targetInfo.Value.Configuration, targetInfo.Value.Platform);
 516                                 }
 517                         }
 518                 }
 519
 520                 void AddDefaultSolutionConfiguration (ProjectRootElement p, TargetInfo target)
 521                 {
 522                         var configurationPropertyGroup = p.AddPropertyGroup ();
 523                         //configurationPropertyGroup.PropertiesReversed = true;
 524                         configurationPropertyGroup.Condition = " '$(Configuration)' == '' ";
 525                         configurationPropertyGroup.AddProperty ("Configuration", target.Configuration);
 526
 527                         var platformPropertyGroup = p.AddPropertyGroup ();
 528                         //platformPropertyGroup.PropertiesReversed = true;
 529                         platformPropertyGroup.Condition = " '$(Platform)' == '' ";
 530                         platformPropertyGroup.AddProperty ("Platform", target.Platform);
 531
 532                         // emit default for AspNetConfiguration also
 533                         var aspNetConfigurationPropertyGroup = p.AddPropertyGroup ();
 534                         //aspNetConfigurationPropertyGroup.PropertiesReversed = true;
 535                         aspNetConfigurationPropertyGroup.Condition = " ('$(AspNetConfiguration)' == '') ";
 536                         aspNetConfigurationPropertyGroup.AddProperty ("AspNetConfiguration", "$(Configuration)");
 537                 }
 538
 539                 void AddWarningForMissingProjectConfiguration (ProjectTargetElement target, string slnConfig, string slnPlatform, string projectName)
 540                 {
 541                         var task = target.AddTask ("Warning");
 542                         task.SetParameter ("Text",
 543                                         String.Format ("The project configuration for project '{0}' corresponding " +
 544                                                 "to the solution configuration '{1}|{2}' was not found in the solution file.",
 545                                                 projectName, slnConfig, slnPlatform));
 546                         task.Condition = String.Format ("('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}')",
 547                                                 slnConfig, slnPlatform);
 548
 549                 }
 550
 551                 // Website project methods
 552
 553                 void AddWebsiteProperties (ProjectRootElement p, Dictionary<Guid, ProjectInfo> websiteProjectInfos,
 554                                 Dictionary<Guid, ProjectInfo> projectInfos)
 555                 {
 556                         var propertyGroupByConfig = new Dictionary<string, ProjectPropertyGroupElement> ();
 557                         foreach (KeyValuePair<Guid, ProjectInfo> infoPair in websiteProjectInfos) {
 558                                 ProjectInfo info = infoPair.Value;
 559                                 string projectGuid = infoPair.Key.ToString ();
 560
 561                                 ProjectSection section;
 562                                 if (!info.ProjectSections.TryGetValue ("WebsiteProperties", out section)) {
 563                                         RaiseWarning (0, String.Format ("Website project '{0}' does not have the required project section: WebsiteProperties. Ignoring project.", info.Name));
 564                                         return;
 565                                 }
 566
 567                                 //parse project references
 568                                 string [] ref_guids = null;
 569                                 string references;
 570                                 if (section.Properties.TryGetValue ("ProjectReferences", out references)) {
 571                                         ref_guids = references.Split (new char [] {';'}, StringSplitOptions.RemoveEmptyEntries);
 572                                         for (int i = 0; i < ref_guids.Length; i ++) {
 573                                                 // "{guid}|foo.dll"
 574                                                 ref_guids [i] = ref_guids [i].Split ('|') [0];
 575
 576                                                 Guid r_guid = new Guid (ref_guids [i]);
 577                                                 ProjectInfo ref_info;
 578                                                 if (projectInfos.TryGetValue (r_guid, out ref_info))
 579                                                         // ignore if not found
 580                                                         info.Dependencies [r_guid] = ref_info;
 581                                         }
 582                                 }
 583
 584                                 foreach (KeyValuePair<string, string> pair in section.Properties) {
 585                                         //looking for -- ConfigName.AspNetCompiler.PropName
 586                                         string [] parts = pair.Key.Split ('.');
 587                                         if (parts.Length != 3 || String.Compare (parts [1], "AspNetCompiler") != 0)
 588                                                 continue;
 589
 590                                         string config = parts [0];
 591                                         string propertyName = parts [2];
 592
 593                                         ProjectPropertyGroupElement bpg;
 594                                         if (!propertyGroupByConfig.TryGetValue (config, out bpg)) {
 595                                                 bpg = p.AddPropertyGroup ();
 596                                                 //bpg.PropertiesReversed = true;
 597                                                 bpg.Condition = String.Format (" '$(AspNetConfiguration)' == '{0}' ", config);
 598                                                 propertyGroupByConfig [config] = bpg;
 599                                         }
 600
 601                                         bpg.AddProperty (String.Format ("Project_{0}_AspNet{1}", projectGuid, propertyName),
 602                                                                 pair.Value);
 603
 604                                         if (!info.AspNetConfigurations.Contains (config))
 605                                                 info.AspNetConfigurations.Add (config);
 606                                 }
 607                         }
 608                 }
 609
 610                 // For WebSite projects
 611                 // The main "Build" target:
 612                 //      1. builds all non-website projects
 613                 //      2. calls target for website project
 614                 //              - gets target path for the referenced projects
 615                 //              - Resolves dependencies, satellites etc for the
 616                 //                referenced project assemblies, and copies them
 617                 //                to bin/ folder
 618                 void AddWebsiteTargets (ProjectRootElement p, Dictionary<Guid, ProjectInfo> websiteProjectInfos,
 619                                 Dictionary<Guid, ProjectInfo> projectInfos, List<ProjectInfo>[] infosByLevel,
 620                                 List<TargetInfo> solutionTargets)
 621                 {
 622                         foreach (ProjectInfo w_info in websiteProjectInfos.Values) {
 623                                 // gets a linear list of dependencies
 624                                 List<ProjectInfo> depInfos = new List<ProjectInfo> ();
 625                                 foreach (List<ProjectInfo> pinfos in infosByLevel) {
 626                                         foreach (ProjectInfo pinfo in pinfos)
 627                                                 if (w_info.Dependencies.ContainsKey (pinfo.Guid))
 628                                                         depInfos.Add (pinfo);
 629                                 }
 630
 631                                 foreach (string buildTarget in new string [] {"Build", "Rebuild"})
 632                                         AddWebsiteTarget (p, w_info, projectInfos, depInfos, solutionTargets, buildTarget);
 633
 634                                 // clean/publish are not supported for website projects
 635                                 foreach (string buildTarget in new string [] {"Clean", "Publish"})
 636                                         AddWebsiteUnsupportedTarget (p, w_info, depInfos, buildTarget);
 637                         }
 638                 }
 639
 640                 void AddWebsiteTarget (ProjectRootElement p, ProjectInfo webProjectInfo,
 641                                 Dictionary<Guid, ProjectInfo> projectInfos, List<ProjectInfo> depInfos,
 642                                 List<TargetInfo> solutionTargets, string buildTarget)
 643                 {
 644                         string w_guid = webProjectInfo.Guid.ToString ().ToUpper ();
 645
 646                         var target = p.AddTarget (GetTargetNameForProject (webProjectInfo.Name, buildTarget));
 647                         target.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 648                         target.DependsOnTargets = GetWebsiteDependsOnTarget (depInfos, buildTarget);
 649
 650                         // this item collects all the references
 651                         string final_ref_item = String.Format ("Project_{0}_References{1}", w_guid,
 652                                                         buildTarget != "Build" ? "_" + buildTarget : String.Empty);
 653
 654                         foreach (TargetInfo targetInfo in solutionTargets) {
 655                                 int ref_num = 0;
 656                                 foreach (ProjectInfo depInfo in depInfos) {
 657                                         TargetInfo projectTargetInfo;
 658                                         if (!depInfo.TargetMap.TryGetValue (targetInfo, out projectTargetInfo))
 659                                                 // Ignore, no config, so no target path
 660                                                 continue;
 661
 662                                         // GetTargetPath from the referenced project
 663                                         AddWebsiteMSBuildTaskForReference (target, depInfo, projectTargetInfo, targetInfo,
 664                                                         final_ref_item, ref_num);
 665                                         ref_num ++;
 666                                 }
 667                         }
 668
 669                         // resolve the references
 670                         AddWebsiteResolveAndCopyReferencesTasks (target, webProjectInfo, final_ref_item, w_guid);
 671                 }
 672
 673                 // emits the MSBuild task to GetTargetPath for the referenced project
 674                 void AddWebsiteMSBuildTaskForReference (ProjectTargetElement target, ProjectInfo depInfo, TargetInfo projectTargetInfo,
 675                                 TargetInfo solutionTargetInfo, string final_ref_item, int ref_num)
 676                 {
 677                         var task = target.AddTask ("MSBuild");
 678                         task.SetParameter ("Projects", depInfo.FileName);
 679                         task.SetParameter ("Targets", "GetTargetPath");
 680
 681                         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));
 682                         task.Condition = string.Format (" ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ", solutionTargetInfo.Configuration, solutionTargetInfo.Platform);
 683
 684                         string ref_item = String.Format ("{0}_{1}",
 685                                                 final_ref_item, ref_num);
 686
 687                         task.AddOutputItem ("TargetOutputs", ref_item);
 688
 689                         task = target.AddTask ("CreateItem");
 690                         task.SetParameter ("Include", String.Format ("@({0})", ref_item));
 691                         task.SetParameter ("AdditionalMetadata", String.Format ("Guid={{{0}}}",
 692                                                 depInfo.Guid.ToString ().ToUpper ()));
 693                         task.AddOutputItem ("Include", final_ref_item);
 694                 }
 695
 696                 void AddWebsiteResolveAndCopyReferencesTasks (ProjectTargetElement target, ProjectInfo webProjectInfo,
 697                                 string final_ref_item, string w_guid)
 698                 {
 699                         var task = target.AddTask ("ResolveAssemblyReference");
 700                         task.SetParameter ("Assemblies", String.Format ("@({0}->'%(FullPath)')", final_ref_item));
 701                         task.SetParameter ("TargetFrameworkDirectories", "$(TargetFrameworkPath)");
 702                         task.SetParameter ("SearchPaths", "{RawFileName};{TargetFrameworkDirectory};{GAC}");
 703                         task.SetParameter ("FindDependencies", "true");
 704                         task.SetParameter ("FindSatellites", "true");
 705                         task.SetParameter ("FindRelatedFiles", "true");
 706                         task.Condition = String.Format ("Exists ('%({0}.Identity)')", final_ref_item);
 707
 708                         string copylocal_item = String.Format ("{0}_CopyLocalFiles", final_ref_item);
 709                         task.AddOutputItem ("CopyLocalFiles", copylocal_item);
 710
 711                         // Copy the references
 712                         task = target.AddTask ("Copy");
 713                         task.SetParameter ("SourceFiles", String.Format ("@({0})", copylocal_item));
 714                         task.SetParameter ("DestinationFiles", String.Format (
 715                                                 "@({0}->'$(Project_{1}_AspNetPhysicalPath)\\Bin\\%(DestinationSubDirectory)%(Filename)%(Extension)')",
 716                                                 copylocal_item, w_guid));
 717
 718                         // AspNetConfiguration, is config for the website project, useful
 719                         // for overriding from command line
 720                         StringBuilder cond = new StringBuilder ();
 721                         foreach (string config in webProjectInfo.AspNetConfigurations) {
 722                                 if (cond.Length > 0)
 723                                         cond.Append (" or ");
 724                                 cond.AppendFormat (" ('$(AspNetConfiguration)' == '{0}') ", config);
 725                         }
 726                         task.Condition = cond.ToString ();
 727
 728                         task = target.AddTask ("Message");
 729                         cond = new StringBuilder ();
 730                         foreach (string config in webProjectInfo.AspNetConfigurations) {
 731                                 if (cond.Length > 0)
 732                                         cond.Append (" and ");
 733                                 cond.AppendFormat (" ('$(AspNetConfiguration)' != '{0}') ", config);
 734                         }
 735                         task.Condition = cond.ToString ();
 736                         task.SetParameter ("Text", "Skipping as the '$(AspNetConfiguration)' configuration is " +
 737                                                 "not supported by this website project.");
 738                 }
 739
 740                 void AddWebsiteUnsupportedTarget (ProjectRootElement p, ProjectInfo webProjectInfo, List<ProjectInfo> depInfos,
 741                                 string buildTarget)
 742                 {
 743                         var target = p.AddTarget (GetTargetNameForProject (webProjectInfo.Name, buildTarget));
 744                         target.DependsOnTargets = GetWebsiteDependsOnTarget (depInfos, buildTarget);
 745
 746                         var task = target.AddTask ("Message");
 747                         task.SetParameter ("Text", String.Format (
 748                                                 "Target '{0}' not support for website projects", buildTarget));
 749                 }
 750
 751                 string GetWebsiteDependsOnTarget (List<ProjectInfo> depInfos, string buildTarget)
 752                 {
 753                         StringBuilder deps = new StringBuilder ();
 754                         foreach (ProjectInfo pinfo in depInfos) {
 755                                 if (deps.Length > 0)
 756                                         deps.Append (";");
 757                                 deps.Append (GetTargetNameForProject (pinfo.Name, buildTarget));
 758                         }
 759                         deps.Append (";GetFrameworkPath");
 760                         return deps.ToString ();
 761                 }
 762
 763                 void AddGetFrameworkPathTarget (ProjectRootElement p)
 764                 {
 765                         var t = p.AddTarget ("GetFrameworkPath");
 766                         var task = t.AddTask ("GetFrameworkPath");
 767                         task.AddOutputProperty ("Path", "TargetFrameworkPath");
 768                 }
 769
 770                 void AddValidateSolutionConfiguration (ProjectRootElement p)
 771                 {
 772                         var t = p.AddTarget ("ValidateSolutionConfiguration");
 773                         var task = t.AddTask ("Warning");
 774                         task.SetParameter ("Text", "On windows, an environment variable 'Platform' is set to MCD sometimes, and this overrides the Platform property" +
 775                                                 " for Mono msbuild, which could be an invalid Platform for this solution file. And so you are getting the following error." +
 776                                                 " You could override it by either setting the environment variable to nothing, as\n" +
 777                                                 "   set Platform=\n" +
 778                                                 "Or explicity specify its value on the command line, as\n" +
 779                                                 "   msbuild Foo.sln /p:Platform=Release");
 780                         task.Condition = "('$(CurrentSolutionConfigurationContents)' == '') and ('$(SkipInvalidConfigurations)' != 'true')" +
 781                                         " and '$(Platform)' == 'MCD' and '$(OS)' == 'Windows_NT'";
 782
 783                         task = t.AddTask ("Error");
 784                         task.SetParameter ("Text", "Invalid solution configuration and platform: \"$(Configuration)|$(Platform)\".");
 785                         task.Condition = "('$(CurrentSolutionConfigurationContents)' == '') and ('$(SkipInvalidConfigurations)' != 'true')";
 786                         task = t.AddTask ("Warning");
 787                         task.SetParameter ("Text", "Invalid solution configuration and platform: \"$(Configuration)|$(Platform)\".");
 788                         task.Condition = "('$(CurrentSolutionConfigurationContents)' == '') and ('$(SkipInvalidConfigurations)' == 'true')";
 789                         task = t.AddTask ("Message");
 790                         task.SetParameter ("Text", "Building solution configuration \"$(Configuration)|$(Platform)\".");
 791                         task.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 792                 }
 793
 794                 void AddProjectTargets (ProjectRootElement p, List<TargetInfo> solutionTargets, Dictionary<Guid, ProjectInfo> projectInfos)
 795                 {
 796                         foreach (KeyValuePair<Guid, ProjectInfo> projectInfo in projectInfos) {
 797                                 ProjectInfo project = projectInfo.Value;
 798                                 foreach (string buildTarget in buildTargets) {
 799                                         string target_name = GetTargetNameForProject (project.Name, buildTarget);
 800                                         bool is_build_or_rebuild = buildTarget == "Build" || buildTarget == "Rebuild";
 801                                         var target = p.AddTarget (target_name);
 802                                         target.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 803
 804                                         if (is_build_or_rebuild)
 805                                                 target.Outputs = "@(CollectedBuildOutput)";
 806                                         if (project.Dependencies.Count > 0)
 807                                                 target.DependsOnTargets = String.Join (";",
 808                                                                 project.Dependencies.Values.Select (
 809                                                                         di => GetTargetNameForProject (di.Name, buildTarget)).ToArray ());
 810
 811                                         foreach (TargetInfo targetInfo in solutionTargets) {
 812                                                 ProjectTaskElement task = null;
 813                                                 TargetInfo projectTargetInfo;
 814                                                 if (!project.TargetMap.TryGetValue (targetInfo, out projectTargetInfo)) {
 815                                                         AddWarningForMissingProjectConfiguration (target, targetInfo.Configuration,
 816                                                                         targetInfo.Platform, project.Name);
 817                                                         continue;
 818                                                 }
 819                                                 if (projectTargetInfo.Build) {
 820                                                         task = target.AddTask ("MSBuild");
 821                                                         task.SetParameter ("Projects", project.FileName);
 822                                                         task.SetParameter ("ToolsVersion", "$(ProjectToolsVersion)");
 823                                                         if (is_build_or_rebuild)
 824                                                                 task.AddOutputItem ("TargetOutputs", "CollectedBuildOutput");
 825
 826                                                         if (buildTarget != "Build")
 827                                                                 task.SetParameter ("Targets", buildTarget);
 828                                                         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));
 829                                                 } else {
 830                                                         task = target.AddTask ("Message");
 831                                                         task.SetParameter ("Text", string.Format ("Project \"{0}\" is disabled for solution configuration \"{1}|{2}\".", project.Name, targetInfo.Configuration, targetInfo.Platform));
 832                                                 }
 833                                                 task.Condition = string.Format (" ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ", targetInfo.Configuration, targetInfo.Platform);
 834                                         }
 835                                 }
 836                         }
 837                 }
 838
 839
 840                 string GetTargetNameForProject (string projectName, string buildTarget)
 841                 {
 842                         //FIXME: hack
 843                         projectName = projectName.Replace ("\\", "/").Replace (".", "_");
 844                         string target_name = projectName +
 845                                         (buildTarget == "Build" ? string.Empty : ":" + buildTarget);
 846
 847                         if (IsBuildTargetName (projectName))
 848                                 target_name = "Solution:" + target_name;
 849
 850                         return target_name;
 851                 }
 852
 853                 bool IsBuildTargetName (string name)
 854                 {
 855                         foreach (string tgt in buildTargets)
 856                                 if (name == tgt)
 857                                         return true;
 858                         return false;
 859                 }
 860
 861                 // returns number of levels
 862                 int AddBuildLevels (ProjectRootElement p, List<TargetInfo> solutionTargets, Dictionary<Guid, ProjectInfo> projectInfos,
 863                                 ref List<ProjectInfo>[] infosByLevel)
 864                 {
 865                         infosByLevel = TopologicalSort<ProjectInfo> (projectInfos.Values);
 866
 867                         foreach (TargetInfo targetInfo in solutionTargets) {
 868                                 var big = p.AddItemGroup ();
 869                                 big.Condition = String.Format (" ('$(Configuration)' == '{0}') and ('$(Platform)' == '{1}') ",
 870                                                 targetInfo.Configuration, targetInfo.Platform);
 871
 872                                 //FIXME: every level has projects that can be built in parallel.
 873                                 //       levels are ordered on the basis of the dependency graph
 874
 875                                 for (int i = 0; i < infosByLevel.Length; i ++) {
 876                                         string build_level = String.Format ("BuildLevel{0}", i);
 877                                         string skip_level = String.Format ("SkipLevel{0}", i);
 878                                         string missing_level = String.Format ("MissingConfigLevel{0}", i);
 879
 880                                         foreach (ProjectInfo projectInfo in infosByLevel [i]) {
 881                                                 TargetInfo projectTargetInfo;
 882                                                 if (!projectInfo.TargetMap.TryGetValue (targetInfo, out projectTargetInfo)) {
 883                                                         // missing project config
 884                                                         big.AddItem (missing_level, projectInfo.Name);
 885                                                         continue;
 886                                                 }
 887
 888                                                 if (projectTargetInfo.Build) {
 889                                                         var item = big.AddItem (build_level, projectInfo.FileName);
 890                                                         item.AddMetadata ("Configuration", projectTargetInfo.Configuration);
 891                                                         item.AddMetadata ("Platform", projectTargetInfo.Platform);
 892                                                 } else {
 893                                                         // build disabled
 894                                                         big.AddItem (skip_level, projectInfo.Name);
 895                                                 }
 896                                         }
 897                                 }
 898                         }
 899
 900                         return infosByLevel.Length;
 901                 }
 902
 903                 void AddSolutionTargets (ProjectRootElement p, int num_levels, IEnumerable<ProjectInfo> websiteProjectInfos)
 904                 {
 905                         foreach (string buildTarget in buildTargets) {
 906                                 var t = p.AddTarget (buildTarget);
 907                                 bool is_build_or_rebuild = buildTarget == "Build" || buildTarget == "Rebuild";
 908
 909                                 t.Condition = "'$(CurrentSolutionConfigurationContents)' != ''";
 910                                 if (is_build_or_rebuild)
 911                                         t.Outputs = "@(CollectedBuildOutput)";
 912
 913                                 ProjectTaskElement task = null;
 914                                 for (int i = 0; i < num_levels; i ++) {
 915                                         string level_str = String.Format ("BuildLevel{0}", i);
 916                                         task = t.AddTask ("MSBuild");
 917                                         task.SetParameter ("Condition", String.Format ("'@({0})' != ''", level_str));
 918                                         task.SetParameter ("Projects", String.Format ("@({0})", level_str));
 919                                         task.SetParameter ("ToolsVersion", "$(ProjectToolsVersion)");
 920                                         task.SetParameter ("Properties",
 921                                                 string.Format ("Configuration=%(Configuration); Platform=%(Platform); BuildingSolutionFile=true; CurrentSolutionConfigurationContents=$(CurrentSolutionConfigurationContents); SolutionDir=$(SolutionDir); SolutionExt=$(SolutionExt); SolutionFileName=$(SolutionFileName); SolutionName=$(SolutionName); SolutionPath=$(SolutionPath)"));
 922                                         if (buildTarget != "Build")
 923                                                 task.SetParameter ("Targets", buildTarget);
 924                                         //FIXME: change this to BuildInParallel=true, when parallel
 925                                         //       build support gets added
 926                                         task.SetParameter ("RunEachTargetSeparately", "true");
 927                                         if (is_build_or_rebuild)
 928                                                 task.AddOutputItem ("TargetOutputs", "CollectedBuildOutput");
 929
 930                                         level_str = String.Format ("SkipLevel{0}", i);
 931                                         task = t.AddTask ("Message");
 932                                         task.Condition = String.Format ("'@({0})' != ''", level_str);
 933                                         task.SetParameter ("Text",
 934                                                 String.Format ("The project '%({0}.Identity)' is disabled for solution " +
 935                                                         "configuration '$(Configuration)|$(Platform)'.", level_str));
 936
 937                                         level_str = String.Format ("MissingConfigLevel{0}", i);
 938                                         task = t.AddTask ("Warning");
 939                                         task.Condition = String.Format ("'@({0})' != ''", level_str);
 940                                         task.SetParameter ("Text",
 941                                                 String.Format ("The project configuration for project '%({0}.Identity)' " +
 942                                                         "corresponding to the solution configuration " +
 943                                                         "'$(Configuration)|$(Platform)' was not found.", level_str));
 944                                 }
 945
 946                                 // "build" website projects also
 947                                 StringBuilder w_targets = new StringBuilder ();
 948                                 foreach (ProjectInfo info in websiteProjectInfos) {
 949                                         if (w_targets.Length > 0)
 950                                                 w_targets.Append (";");
 951                                         w_targets.Append (GetTargetNameForProject (info.Name, buildTarget));
 952                                 }
 953
 954                                 task = t.AddTask ("CallTarget");
 955                                 task.SetParameter ("Targets", w_targets.ToString ());
 956                                 task.SetParameter ("RunEachTargetSeparately", "true");
 957                         }
 958                 }
 959
 960                 // Sorts the ProjectInfo dependency graph, to obtain
 961                 // a series of build levels with projects. Projects
 962                 // in each level can be run parallel (no inter-dependency).
 963                 static List<T>[] TopologicalSort<T> (IEnumerable<T> items) where T: ProjectInfo
 964                 {
 965                         IList<T> allItems;
 966                         allItems = items as IList<T>;
 967                         if (allItems == null)
 968                                 allItems = new List<T> (items);
 969
 970                         bool[] inserted = new bool[allItems.Count];
 971                         bool[] triedToInsert = new bool[allItems.Count];
 972                         int[] levels = new int [allItems.Count];
 973
 974                         int maxdepth = 0;
 975                         for (int i = 0; i < allItems.Count; ++i) {
 976                                 int d = Insert<T> (i, allItems, levels, inserted, triedToInsert);
 977                                 if (d > maxdepth)
 978                                         maxdepth = d;
 979                         }
 980
 981                         // Separate out the project infos by build level
 982                         List<T>[] infosByLevel = new List<T>[maxdepth];
 983                         for (int i = 0; i < levels.Length; i ++) {
 984                                 int level = levels [i] - 1;
 985                                 if (infosByLevel [level] == null)
 986                                         infosByLevel [level] = new List<T> ();
 987
 988                                 infosByLevel [level].Add (allItems [i]);
 989                         }
 990
 991                         return infosByLevel;
 992                 }
 993
 994                 // returns level# for the project
 995                 static int Insert<T> (int index, IList<T> allItems, int[] levels, bool[] inserted, bool[] triedToInsert)
 996                         where T: ProjectInfo
 997                 {
 998                         if (inserted [index])
 999                                 return levels [index];
1000
1001                         if (triedToInsert[index])
1002                                 throw new InvalidOperationException (String.Format (
1003                                                 "Cyclic dependency involving project {0} found in the project dependency graph",
1004                                                 allItems [index].Name));
1005
1006                         triedToInsert[index] = true;
1007                         ProjectInfo insertItem = allItems[index];
1008
1009                         int maxdepth = 0;
1010                         foreach (ProjectInfo dependency in insertItem.Dependencies.Values) {
1011                                 for (int j = 0; j < allItems.Count; ++j) {
1012                                         ProjectInfo checkItem = allItems [j];
1013                                         if (dependency.FileName == checkItem.FileName) {
1014                                                 int d = Insert (j, allItems, levels, inserted, triedToInsert);
1015                                                 maxdepth = d > maxdepth ? d : maxdepth;
1016                                                 break;
1017                                         }
1018                                 }
1019                         }
1020                         levels [index] = maxdepth + 1;
1021                         inserted [index] = true;
1022
1023                         return levels [index];
1024                 }
1025
1026                 public static IEnumerable<string> GetAllProjectFileNames (string solutionFile)
1027                 {
1028                         StreamReader reader = new StreamReader (solutionFile);
1029                         string line = reader.ReadToEnd ();
1030                         line = line.Replace ("\r\n", "\n");
1031                         string soln_dir = Path.GetDirectoryName (solutionFile);
1032
1033                         Match m = projectRegex.Match (line);
1034                         while (m.Success) {
1035                                 if (String.Compare (m.Groups [1].Value, solutionFolderGuid,
1036                                                 StringComparison.InvariantCultureIgnoreCase) != 0)
1037                                         yield return Path.Combine (soln_dir, m.Groups [3].Value).Replace ("\\", "/");
1038
1039                                 m = m.NextMatch ();
1040                         }
1041                 }
1042         }
1043 }