mcs/class/Microsoft.Build.Tasks/Microsoft.Build.Tasks/ResolveAssemblyReference.cs

   1 //
   2 // ResolveAssemblyReference.cs: Searches for assembly files.
   3 //
   4 // Author:
   5 //   Marek Sieradzki (marek.sieradzki@gmail.com)
   6 //   Ankit Jain (jankit@novell.com)
   7 //
   8 // (C) 2006 Marek Sieradzki
   9 // Copyright 2009 Novell, Inc (http://www.novell.com)
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29
  30 #if NET_2_0
  31
  32 using System;
  33 using System.Collections.Generic;
  34 using System.Globalization;
  35 using System.IO;
  36 using System.Linq;
  37 using System.Reflection;
  38 using System.Security;
  39 using Microsoft.Build.Framework;
  40 using Microsoft.Build.Utilities;
  41
  42 namespace Microsoft.Build.Tasks {
  43         public class ResolveAssemblyReference : TaskExtension {
  44
  45                 bool            autoUnify;
  46                 ITaskItem[]     assemblyFiles;
  47                 ITaskItem[]     assemblies;
  48                 string          appConfigFile;
  49                 string[]        allowedAssemblyExtensions;
  50                 string[]        allowedRelatedFileExtensions;
  51                 string[]        candidateAssemblyFiles;
  52                 ITaskItem[]     copyLocalFiles;
  53                 ITaskItem[]     filesWritten;
  54                 bool            findDependencies;
  55                 bool            findRelatedFiles;
  56                 bool            findSatellites;
  57                 bool            findSerializationAssemblies;
  58                 string[]        installedAssemblyTables;
  59                 ITaskItem[]     relatedFiles;
  60                 ITaskItem[]     resolvedDependencyFiles;
  61                 ITaskItem[]     resolvedFiles;
  62                 ITaskItem[]     satelliteFiles;
  63                 ITaskItem[]     scatterFiles;
  64                 string[]        searchPaths;
  65                 ITaskItem[]     serializationAssemblyFiles;
  66                 bool            silent;
  67                 string          stateFile;
  68                 ITaskItem[]     suggestedRedirects;
  69                 string[]        targetFrameworkDirectories;
  70                 string          targetProcessorArchitecture;
  71                 static string []        default_assembly_extensions;
  72
  73                 AssemblyResolver        assembly_resolver;
  74                 List<string> dependency_search_paths;
  75                 Dictionary<string, ResolvedReference> assemblyNameToResolvedRef;
  76                 Dictionary<string, ITaskItem>   tempSatelliteFiles, tempRelatedFiles,
  77                         tempResolvedDepFiles, tempCopyLocalFiles;
  78                 List<ITaskItem> tempResolvedFiles;
  79                 List<PrimaryReference> primaryReferences;
  80                 Dictionary<string, string> alreadyScannedAssemblyNames;
  81                 Dictionary<string, string> conflictWarningsCache;
  82
  83                 //FIXME: construct and use a graph of the dependencies, useful across projects
  84
  85                 static ResolveAssemblyReference ()
  86                 {
  87                         default_assembly_extensions = new string [] { ".dll", ".exe" };
  88                 }
  89
  90                 public ResolveAssemblyReference ()
  91                 {
  92                         assembly_resolver = new AssemblyResolver ();
  93                 }
  94
  95                 //FIXME: make this reusable
  96                 public override bool Execute ()
  97                 {
  98                         if (assemblies == null && assemblyFiles == null)
  99                                 // nothing to resolve
 100                                 return true;
 101
 102                         LogTaskParameters ();
 103
 104                         assembly_resolver.Log = Log;
 105                         tempResolvedFiles = new List<ITaskItem> ();
 106                         tempCopyLocalFiles = new Dictionary<string, ITaskItem> ();
 107                         tempSatelliteFiles = new Dictionary<string, ITaskItem> ();
 108                         tempRelatedFiles = new Dictionary<string, ITaskItem> ();
 109                         tempResolvedDepFiles = new Dictionary<string, ITaskItem> ();
 110
 111                         primaryReferences = new List<PrimaryReference> ();
 112                         assemblyNameToResolvedRef = new Dictionary<string, ResolvedReference> ();
 113                         conflictWarningsCache = new Dictionary<string, string> ();
 114
 115                         ResolveAssemblies ();
 116                         ResolveAssemblyFiles ();
 117                         resolvedFiles = tempResolvedFiles.ToArray ();
 118
 119                         alreadyScannedAssemblyNames = new Dictionary<string, string> ();
 120
 121                         // the first element is place holder for parent assembly's dir
 122                         dependency_search_paths = new List<string> () { String.Empty };
 123                         dependency_search_paths.AddRange (searchPaths);
 124
 125                         // resolve dependencies
 126                         foreach (PrimaryReference pref in primaryReferences)
 127                                 ResolveAssemblyFileDependencies (pref.TaskItem, pref.ParentCopyLocal);
 128
 129                         copyLocalFiles = tempCopyLocalFiles.Values.ToArray ();
 130                         satelliteFiles = tempSatelliteFiles.Values.ToArray ();
 131                         relatedFiles = tempRelatedFiles.Values.ToArray ();
 132                         resolvedDependencyFiles = tempResolvedDepFiles.Values.ToArray ();
 133
 134                         tempResolvedFiles.Clear ();
 135                         tempCopyLocalFiles.Clear ();
 136                         tempSatelliteFiles.Clear ();
 137                         tempRelatedFiles.Clear ();
 138                         tempResolvedDepFiles.Clear ();
 139                         alreadyScannedAssemblyNames.Clear ();
 140                         primaryReferences.Clear ();
 141                         assemblyNameToResolvedRef.Clear ();
 142                         conflictWarningsCache.Clear ();
 143                         dependency_search_paths = null;
 144
 145                         return true;
 146                 }
 147
 148                 void ResolveAssemblies ()
 149                 {
 150                         if (assemblies == null || assemblies.Length == 0)
 151                                 return;
 152
 153                         foreach (ITaskItem item in assemblies) {
 154                                 if (!String.IsNullOrEmpty (item.GetMetadata ("SubType"))) {
 155                                         Log.LogWarning ("Reference '{0}' has non-empty SubType. Ignoring.", item.ItemSpec);
 156                                         continue;
 157                                 }
 158
 159                                 LogWithPrecedingNewLine (MessageImportance.Low, "Primary Reference {0}", item.ItemSpec);
 160                                 ResolvedReference resolved_ref = ResolveReference (item, searchPaths, true);
 161                                 if (resolved_ref == null) {
 162                                         Log.LogWarning ("Reference '{0}' not resolved", item.ItemSpec);
 163                                         assembly_resolver.LogSearchLoggerMessages (MessageImportance.Normal);
 164                                 } else {
 165                                         if (Environment.GetEnvironmentVariable ("XBUILD_LOG_REFERENCE_RESOLVER") != null)
 166                                                 assembly_resolver.LogSearchLoggerMessages (MessageImportance.Low);
 167
 168                                         Log.LogMessage (MessageImportance.Low,
 169                                                         "\tReference {0} resolved to {1}. CopyLocal = {2}",
 170                                                         item.ItemSpec, resolved_ref.TaskItem,
 171                                                         resolved_ref.TaskItem.GetMetadata ("CopyLocal"));
 172
 173                                         Log.LogMessage (MessageImportance.Low,
 174                                                         "\tReference found at search path {0}",
 175                                                         resolved_ref.FoundInSearchPathAsString);
 176
 177                                         if (TryAddNewReference (tempResolvedFiles, resolved_ref) &&
 178                                                 !IsFromGacOrTargetFramework (resolved_ref) &&
 179                                                 resolved_ref.FoundInSearchPath != SearchPath.PkgConfig) {
 180                                                 primaryReferences.Add (new PrimaryReference (
 181                                                                 resolved_ref.TaskItem,
 182                                                                 resolved_ref.TaskItem.GetMetadata ("CopyLocal")));
 183                                         }
 184                                 }
 185                         }
 186                 }
 187
 188                 // Use @search_paths to resolve the reference
 189                 ResolvedReference ResolveReference (ITaskItem item, IEnumerable<string> search_paths, bool set_copy_local)
 190                 {
 191                         ResolvedReference resolved = null;
 192                         bool specific_version;
 193
 194                         assembly_resolver.ResetSearchLogger ();
 195
 196                         if (!TryGetSpecificVersionValue (item, out specific_version))
 197                                 return null;
 198
 199                         foreach (string spath in search_paths) {
 200                                 assembly_resolver.LogSearchMessage ("For searchpath {0}", spath);
 201
 202                                 if (String.Compare (spath, "{HintPathFromItem}") == 0) {
 203                                         resolved = assembly_resolver.ResolveHintPathReference (item, specific_version);
 204                                 } else if (String.Compare (spath, "{TargetFrameworkDirectory}") == 0) {
 205                                         if (targetFrameworkDirectories == null)
 206                                                 continue;
 207                                         foreach (string fpath in targetFrameworkDirectories) {
 208                                                 resolved = assembly_resolver.FindInTargetFramework (item,
 209                                                                 fpath, specific_version);
 210                                                 if (resolved != null)
 211                                                         break;
 212                                         }
 213                                 } else if (String.Compare (spath, "{GAC}") == 0) {
 214                                         resolved = assembly_resolver.ResolveGacReference (item, specific_version);
 215                                 } else if (String.Compare (spath, "{RawFileName}") == 0) {
 216                                         //FIXME: identify assembly names, as extract the name, and try with that?
 217                                         AssemblyName aname;
 218                                         if (assembly_resolver.TryGetAssemblyNameFromFile (item.ItemSpec, out aname))
 219                                                 resolved = assembly_resolver.GetResolvedReference (item, item.ItemSpec, aname, true,
 220                                                                 SearchPath.RawFileName);
 221                                 } else if (String.Compare (spath, "{CandidateAssemblyFiles}") == 0) {
 222                                         assembly_resolver.LogSearchMessage (
 223                                                         "Warning: {{CandidateAssemblyFiles}} not supported currently");
 224                                 } else if (String.Compare (spath, "{PkgConfig}") == 0) {
 225                                         resolved = assembly_resolver.ResolvePkgConfigReference (item, specific_version);
 226                                 } else {
 227                                         resolved = assembly_resolver.FindInDirectory (
 228                                                         item, spath,
 229                                                         allowedAssemblyExtensions ?? default_assembly_extensions,
 230                                                         specific_version);
 231                                 }
 232
 233                                 if (resolved != null)
 234                                         break;
 235                         }
 236
 237                         if (resolved != null && set_copy_local)
 238                                 SetCopyLocal (resolved.TaskItem, resolved.CopyLocal.ToString ());
 239
 240                         return resolved;
 241                 }
 242
 243                 bool TryGetSpecificVersionValue (ITaskItem item, out bool specific_version)
 244                 {
 245                         specific_version = true;
 246                         string value = item.GetMetadata ("SpecificVersion");
 247                         if (String.IsNullOrEmpty (value)) {
 248                                 //AssemblyName name = new AssemblyName (item.ItemSpec);
 249                                 // If SpecificVersion is not specified, then
 250                                 // it is true if the Include is a strong name else false
 251                                 //specific_version = assembly_resolver.IsStrongNamed (name);
 252
 253                                 // msbuild seems to just look for a ',' in the name :/
 254                                 specific_version = item.ItemSpec.IndexOf (',') >= 0;
 255                                 return true;
 256                         }
 257
 258                         if (Boolean.TryParse (value, out specific_version))
 259                                 return true;
 260
 261                         Log.LogError ("Item '{0}' has attribute SpecificVersion with invalid value '{1}' " +
 262                                         "which could not be converted to a boolean.", item.ItemSpec, value);
 263                         return false;
 264                 }
 265
 266                 //FIXME: Consider CandidateAssemblyFiles also here
 267                 void ResolveAssemblyFiles ()
 268                 {
 269                         if (assemblyFiles == null)
 270                                 return;
 271
 272                         foreach (ITaskItem item in assemblyFiles) {
 273                                 assembly_resolver.ResetSearchLogger ();
 274
 275                                 if (!File.Exists (item.ItemSpec)) {
 276                                         LogWithPrecedingNewLine (MessageImportance.Low,
 277                                                         "Primary Reference from AssemblyFiles {0}, file not found. Ignoring",
 278                                                         item.ItemSpec);
 279                                         continue;
 280                                 }
 281
 282                                 LogWithPrecedingNewLine (MessageImportance.Low, "Primary Reference from AssemblyFiles {0}", item.ItemSpec);
 283                                 string copy_local;
 284
 285                                 AssemblyName aname;
 286                                 if (!assembly_resolver.TryGetAssemblyNameFromFile (item.ItemSpec, out aname)) {
 287                                         Log.LogWarning ("Reference '{0}' not resolved", item.ItemSpec);
 288                                         assembly_resolver.LogSearchLoggerMessages (MessageImportance.Normal);
 289                                         continue;
 290                                 }
 291
 292                                 if (Environment.GetEnvironmentVariable ("XBUILD_LOG_REFERENCE_RESOLVER") != null)
 293                                         assembly_resolver.LogSearchLoggerMessages (MessageImportance.Low);
 294
 295                                 ResolvedReference rr = assembly_resolver.GetResolvedReference (item, item.ItemSpec, aname, true,
 296                                                 SearchPath.RawFileName);
 297                                 copy_local = rr.CopyLocal.ToString ();
 298
 299                                 if (!TryAddNewReference (tempResolvedFiles, rr))
 300                                         // already resolved
 301                                         continue;
 302
 303                                 SetCopyLocal (rr.TaskItem, copy_local);
 304
 305                                 FindAndAddRelatedFiles (item.ItemSpec, copy_local);
 306                                 FindAndAddSatellites (item.ItemSpec, copy_local);
 307
 308                                 if (FindDependencies && !IsFromGacOrTargetFramework (rr) &&
 309                                                 rr.FoundInSearchPath != SearchPath.PkgConfig)
 310                                         primaryReferences.Add (new PrimaryReference (item, copy_local));
 311                         }
 312                 }
 313
 314                 // Tries to resolve assemblies referenced by @item
 315                 // Skips gac references
 316                 // @item : filename
 317                 void ResolveAssemblyFileDependencies (ITaskItem item, string parent_copy_local)
 318                 {
 319                         Queue<string> dependencies = new Queue<string> ();
 320                         dependencies.Enqueue (item.ItemSpec);
 321
 322                         while (dependencies.Count > 0) {
 323                                 string filename = Path.GetFullPath (dependencies.Dequeue ());
 324                                 Assembly asm = Assembly.ReflectionOnlyLoadFrom (filename);
 325                                 if (alreadyScannedAssemblyNames.ContainsKey (asm.FullName))
 326                                         continue;
 327
 328                                 // set the 1st search path to this ref's base path
 329                                 // Will be used for resolving the dependencies
 330                                 dependency_search_paths [0] = Path.GetDirectoryName (filename);
 331
 332                                 foreach (AssemblyName aname in asm.GetReferencedAssemblies ()) {
 333                                         if (alreadyScannedAssemblyNames.ContainsKey (aname.FullName))
 334                                                 continue;
 335
 336                                         ResolvedReference resolved_ref = ResolveDependencyByAssemblyName (
 337                                                         aname, asm.FullName, parent_copy_local);
 338
 339                                         if (resolved_ref != null && !IsFromGacOrTargetFramework (resolved_ref)
 340                                                         && resolved_ref.FoundInSearchPath != SearchPath.PkgConfig) {
 341                                                 tempResolvedDepFiles[resolved_ref.AssemblyName.FullName] = resolved_ref.TaskItem;
 342                                                 dependencies.Enqueue (resolved_ref.TaskItem.ItemSpec);
 343                                         }
 344                                 }
 345                                 alreadyScannedAssemblyNames.Add (asm.FullName, String.Empty);
 346                         }
 347                 }
 348
 349                 // Resolves by looking dependency_search_paths
 350                 // which is dir of parent reference file, and
 351                 // SearchPaths
 352                 ResolvedReference ResolveDependencyByAssemblyName (AssemblyName aname, string parent_asm_name,
 353                                 string parent_copy_local)
 354                 {
 355                         // This will check for compatible assembly name/version
 356                         ResolvedReference resolved_ref;
 357                         if (TryGetResolvedReferenceByAssemblyName (aname, false, out resolved_ref))
 358                                 return resolved_ref;
 359
 360                         LogWithPrecedingNewLine (MessageImportance.Low, "Dependency {0}", aname);
 361                         Log.LogMessage (MessageImportance.Low, "\tRequired by {0}", parent_asm_name);
 362
 363                         ITaskItem item = new TaskItem (aname.FullName);
 364                         item.SetMetadata ("SpecificVersion", "false");
 365                         resolved_ref = ResolveReference (item, dependency_search_paths, false);
 366
 367                         if (resolved_ref != null) {
 368                                 if (Environment.GetEnvironmentVariable ("XBUILD_LOG_REFERENCE_RESOLVER") != null)
 369                                                 assembly_resolver.LogSearchLoggerMessages (MessageImportance.Low);
 370
 371                                 Log.LogMessage (MessageImportance.Low, "\tReference {0} resolved to {1}.",
 372                                         aname, resolved_ref.TaskItem.ItemSpec);
 373
 374                                 Log.LogMessage (MessageImportance.Low,
 375                                                 "\tReference found at search path {0}",
 376                                                 resolved_ref.FoundInSearchPathAsString);
 377
 378                                 if (resolved_ref.FoundInSearchPath == SearchPath.Directory) {
 379                                         // override CopyLocal with parent's val
 380                                         SetCopyLocal (resolved_ref.TaskItem, parent_copy_local);
 381
 382                                         Log.LogMessage (MessageImportance.Low,
 383                                                         "\tThis is CopyLocal {0} as parent item has this value",
 384                                                         parent_copy_local);
 385
 386                                         if (TryAddNewReference (tempResolvedFiles, resolved_ref)) {
 387                                                 FindAndAddRelatedFiles (resolved_ref.TaskItem.ItemSpec, parent_copy_local);
 388                                                 FindAndAddSatellites (resolved_ref.TaskItem.ItemSpec, parent_copy_local);
 389                                         }
 390                                 } else {
 391                                         //gac or tgtfmwk
 392                                         Log.LogMessage (MessageImportance.Low,
 393                                                         "\tThis is CopyLocal false as it is in the gac," +
 394                                                         "target framework directory or provided by a package.");
 395
 396                                         TryAddNewReference (tempResolvedFiles, resolved_ref);
 397                                 }
 398                         } else {
 399                                 Log.LogWarning ("Reference '{0}' not resolved", aname);
 400                                 assembly_resolver.LogSearchLoggerMessages (MessageImportance.Normal);
 401                         }
 402
 403                         return resolved_ref;
 404                 }
 405
 406                 void FindAndAddRelatedFiles (string filename, string parent_copy_local)
 407                 {
 408                         if (!findRelatedFiles || allowedRelatedFileExtensions == null)
 409                                 return;
 410
 411                         foreach (string ext in allowedRelatedFileExtensions) {
 412                                 string rfile = filename + ext;
 413                                 if (File.Exists (rfile)) {
 414                                         ITaskItem item = new TaskItem (rfile);
 415                                         SetCopyLocal (item, parent_copy_local);
 416
 417                                         tempRelatedFiles.AddUniqueFile (item);
 418                                 }
 419                         }
 420                 }
 421
 422                 void FindAndAddSatellites (string filename, string parent_copy_local)
 423                 {
 424                         if (!FindSatellites)
 425                                 return;
 426
 427                         string basepath = Path.GetDirectoryName (filename);
 428                         string resource = String.Format ("{0}{1}{2}",
 429                                         Path.GetFileNameWithoutExtension (filename),
 430                                         ".resources",
 431                                         Path.GetExtension (filename));
 432
 433                         string dir_sep = Path.DirectorySeparatorChar.ToString ();
 434                         foreach (string dir in Directory.GetDirectories (basepath)) {
 435                                 string culture = Path.GetFileName (dir);
 436                                 if (!CultureNamesTable.ContainsKey (culture))
 437                                         continue;
 438
 439                                 string res_path = Path.Combine (dir, resource);
 440                                 if (File.Exists (res_path)) {
 441                                         ITaskItem item = new TaskItem (res_path);
 442                                         SetCopyLocal (item, parent_copy_local);
 443                                         item.SetMetadata ("DestinationSubdirectory", culture + dir_sep);
 444                                         tempSatelliteFiles.AddUniqueFile (item);
 445                                 }
 446                         }
 447                 }
 448
 449                 // returns true is it was new
 450                 bool TryAddNewReference (List<ITaskItem> file_list, ResolvedReference key_ref)
 451                 {
 452                         ResolvedReference found_ref;
 453                         if (!TryGetResolvedReferenceByAssemblyName (key_ref.AssemblyName, key_ref.IsPrimary, out found_ref)) {
 454                                 assemblyNameToResolvedRef [key_ref.AssemblyName.Name] = key_ref;
 455                                 file_list.Add (key_ref.TaskItem);
 456
 457                                 return true;
 458                         }
 459                         return false;
 460                 }
 461
 462                 void SetCopyLocal (ITaskItem item, string copy_local)
 463                 {
 464                         item.SetMetadata ("CopyLocal", copy_local);
 465
 466                         // Assumed to be valid value
 467                         if (Boolean.Parse (copy_local))
 468                                 tempCopyLocalFiles.AddUniqueFile (item);
 469                 }
 470
 471                 bool TryGetResolvedReferenceByAssemblyName (AssemblyName key_aname, bool is_primary, out ResolvedReference found_ref)
 472                 {
 473                         found_ref = null;
 474                         // Match by just name
 475                         if (!assemblyNameToResolvedRef.TryGetValue (key_aname.Name, out found_ref))
 476                                 // not there
 477                                 return false;
 478
 479                         // match for full name
 480                         if (AssemblyResolver.AssemblyNamesCompatible (key_aname, found_ref.AssemblyName, true, false))
 481                                 // exact match, so its already there, dont add anything
 482                                 return true;
 483
 484                         // we have a name match, but version mismatch!
 485                         assembly_resolver.LogSearchMessage ("A conflict was detected between '{0}' and '{1}'",
 486                                         key_aname.FullName, found_ref.AssemblyName.FullName);
 487
 488                         if (is_primary == found_ref.IsPrimary) {
 489                                 assembly_resolver.LogSearchMessage ("Unable to choose between the two. " +
 490                                                 "Choosing '{0}' arbitrarily.", found_ref.AssemblyName.FullName);
 491                                 return true;
 492                         }
 493
 494                         // since all dependencies are processed after
 495                         // all primary refererences, the one in the cache
 496                         // has to be a primary
 497                         // Prefer a primary reference over a dependency
 498
 499                         assembly_resolver.LogSearchMessage ("Choosing '{0}' as it is a primary reference.",
 500                                         found_ref.AssemblyName.FullName);
 501
 502                         // If we can successfully use the primary reference, don't log a warning. It's too
 503                         // verbose.
 504                         //LogConflictWarning (found_ref.AssemblyName.FullName, key_aname.FullName);
 505
 506                         return true;
 507                 }
 508
 509                 void LogWithPrecedingNewLine (MessageImportance importance, string format, params object [] args)
 510                 {
 511                         Log.LogMessage (importance, String.Empty);
 512                         Log.LogMessage (importance, format, args);
 513                 }
 514
 515                 // conflict b/w @main and @conflicting, picking @main
 516                 void LogConflictWarning (string main, string conflicting)
 517                 {
 518                         string key = main + ":" + conflicting;
 519                         if (!conflictWarningsCache.ContainsKey (key)) {
 520                                 Log.LogWarning ("Found a conflict between : '{0}' and '{1}'. Using '{0}' reference.",
 521                                                 main, conflicting);
 522                                 conflictWarningsCache [key] = key;
 523                         }
 524                 }
 525
 526                 bool IsFromGacOrTargetFramework (ResolvedReference rr)
 527                 {
 528                         return rr.FoundInSearchPath == SearchPath.Gac ||
 529                                 rr.FoundInSearchPath == SearchPath.TargetFrameworkDirectory;
 530                 }
 531
 532                 void LogTaskParameters ()
 533                 {
 534                         Log.LogMessage (MessageImportance.Low, "TargetFrameworkDirectories:");
 535                         if (TargetFrameworkDirectories != null)
 536                                 foreach (string dir in TargetFrameworkDirectories)
 537                                         Log.LogMessage (MessageImportance.Low, "\t{0}", dir);
 538
 539                         Log.LogMessage (MessageImportance.Low, "SearchPaths:");
 540                         if (SearchPaths != null)
 541                                 foreach (string path in SearchPaths)
 542                                         Log.LogMessage (MessageImportance.Low, "\t{0}", path);
 543                 }
 544
 545                 public bool AutoUnify {
 546                         get { return autoUnify; }
 547                         set { autoUnify = value; }
 548                 }
 549
 550                 public ITaskItem[] AssemblyFiles {
 551                         get { return assemblyFiles; }
 552                         set { assemblyFiles = value; }
 553                 }
 554
 555                 public ITaskItem[] Assemblies {
 556                         get { return assemblies; }
 557                         set { assemblies = value; }
 558                 }
 559
 560                 public string AppConfigFile {
 561                         get { return appConfigFile; }
 562                         set { appConfigFile = value; }
 563                 }
 564
 565                 public string[] AllowedAssemblyExtensions {
 566                         get { return allowedAssemblyExtensions; }
 567                         set { allowedAssemblyExtensions = value; }
 568                 }
 569
 570                 public string[] AllowedRelatedFileExtensions {
 571                         get { return allowedRelatedFileExtensions; }
 572                         set { allowedRelatedFileExtensions = value; }
 573                 }
 574
 575                 public string[] CandidateAssemblyFiles {
 576                         get { return candidateAssemblyFiles; }
 577                         set { candidateAssemblyFiles = value; }
 578                 }
 579
 580                 [Output]
 581                 public ITaskItem[] CopyLocalFiles {
 582                         get { return copyLocalFiles; }
 583                 }
 584
 585                 [Output]
 586                 public ITaskItem[] FilesWritten {
 587                         get { return filesWritten; }
 588                         set { filesWritten = value; }
 589                 }
 590
 591                 public bool FindDependencies {
 592                         get { return findDependencies; }
 593                         set { findDependencies = value; }
 594                 }
 595
 596                 public bool FindRelatedFiles {
 597                         get { return findRelatedFiles; }
 598                         set { findRelatedFiles = value; }
 599                 }
 600
 601                 public bool FindSatellites {
 602                         get { return findSatellites; }
 603                         set { findSatellites = value; }
 604                 }
 605
 606                 public bool FindSerializationAssemblies {
 607                         get { return findSerializationAssemblies; }
 608                         set { findSerializationAssemblies = value; }
 609                 }
 610
 611                 public string[] InstalledAssemblyTables {
 612                         get { return installedAssemblyTables; }
 613                         set { installedAssemblyTables = value; }
 614                 }
 615
 616                 [Output]
 617                 public ITaskItem[] RelatedFiles {
 618                         get { return relatedFiles; }
 619                 }
 620
 621                 [Output]
 622                 public ITaskItem[] ResolvedDependencyFiles {
 623                         get { return resolvedDependencyFiles; }
 624                 }
 625
 626                 [Output]
 627                 public ITaskItem[] ResolvedFiles {
 628                         get { return resolvedFiles; }
 629                 }
 630
 631                 [Output]
 632                 public ITaskItem[] SatelliteFiles {
 633                         get { return satelliteFiles; }
 634                 }
 635
 636                 [Output]
 637                 public ITaskItem[] ScatterFiles {
 638                         get { return scatterFiles; }
 639                 }
 640
 641                 [Required]
 642                 public string[] SearchPaths {
 643                         get { return searchPaths; }
 644                         set { searchPaths = value; }
 645                 }
 646
 647                 [Output]
 648                 public ITaskItem[] SerializationAssemblyFiles {
 649                         get { return serializationAssemblyFiles; }
 650                 }
 651
 652                 public bool Silent {
 653                         get { return silent; }
 654                         set { silent = value; }
 655                 }
 656
 657                 public string StateFile {
 658                         get { return stateFile; }
 659                         set { stateFile = value; }
 660                 }
 661
 662                 [Output]
 663                 public ITaskItem[] SuggestedRedirects {
 664                         get { return suggestedRedirects; }
 665                 }
 666
 667 #if NET_4_0
 668                 public string TargetFrameworkMoniker { get; set; }
 669
 670                 public string TargetFrameworkMonikerDisplayName { get; set; }
 671 #endif
 672
 673                 public string TargetFrameworkVersion { get; set; }
 674
 675                 public string[] TargetFrameworkDirectories {
 676                         get { return targetFrameworkDirectories; }
 677                         set { targetFrameworkDirectories = value; }
 678                 }
 679
 680                 public string TargetProcessorArchitecture {
 681                         get { return targetProcessorArchitecture; }
 682                         set { targetProcessorArchitecture = value; }
 683                 }
 684
 685
 686                 static Dictionary<string, string> cultureNamesTable;
 687                 static Dictionary<string, string> CultureNamesTable {
 688                         get {
 689                                 if (cultureNamesTable == null) {
 690                                         cultureNamesTable = new Dictionary<string, string> ();
 691                                         foreach (CultureInfo ci in CultureInfo.GetCultures (CultureTypes.AllCultures))
 692                                                 cultureNamesTable [ci.Name] = ci.Name;
 693                                 }
 694
 695                                 return cultureNamesTable;
 696                         }
 697                 }
 698         }
 699
 700         static class ResolveAssemblyReferenceHelper {
 701                 public static void AddUniqueFile (this Dictionary<string, ITaskItem> dic, ITaskItem item)
 702                 {
 703                         if (dic == null)
 704                                 throw new ArgumentNullException ("dic");
 705                         if (item == null)
 706                                 throw new ArgumentNullException ("item");
 707
 708                         string fullpath = Path.GetFullPath (item.ItemSpec);
 709                         if (!dic.ContainsKey (fullpath))
 710                                 dic [fullpath] = item;
 711                 }
 712         }
 713
 714         struct PrimaryReference {
 715                 public ITaskItem TaskItem;
 716                 public string ParentCopyLocal;
 717
 718                 public PrimaryReference (ITaskItem item, string parent_copy_local)
 719                 {
 720                         TaskItem = item;
 721                         ParentCopyLocal = parent_copy_local;
 722                 }
 723         }
 724
 725 }
 726
 727 #endif