mcs/tools/gacutil/driver.cs

   1 //
   2 // Mono.Tools.GacUtil
   3 //
   4 // Author(s):
   5 //  Todd Berman <tberman@sevenl.net>
   6 //  Jackson Harper <jackson@ximian.com>
   7 //
   8 // Copyright 2003, 2004 Todd Berman
   9 // Copyright 2004 Novell, Inc (http://www.novell.com)
  10 //
  11
  12
  13 using System;
  14 using System.IO;
  15 using System.Text;
  16 using System.Reflection;
  17 using System.Collections;
  18 using System.Globalization;
  19 using System.Runtime.InteropServices;
  20
  21 using Mono.Security;
  22
  23 namespace Mono.Tools {
  24
  25         public class Driver {
  26
  27                 private enum Command {
  28                         Unknown,
  29                         Install,
  30                         InstallFromList,
  31                         Uninstall,
  32                         UninstallFromList,
  33                         UninstallSpecific,
  34                         List,
  35                         Help
  36                 }
  37
  38                 private static bool silent;
  39
  40                 public static int Main (string [] args)
  41                 {
  42                         if (args.Length == 0)
  43                                 Usage ();
  44
  45                         Command command = Command.Unknown;
  46                         string command_str = null;
  47
  48                         string libdir;
  49                         string name, package, gacdir, root;
  50                         name = package = root = gacdir = null;
  51                         bool check_refs = false;
  52
  53                         // Check for silent arg first so we can suppress
  54                         // warnings during command line parsing
  55                         if (Array.IndexOf (args, "/silent") > -1 || Array.IndexOf (args, "-silent") > -1)
  56                                 silent = true;
  57
  58                         for (int i=0; i<args.Length; i++) {
  59                                 if (IsSwitch (args [i])) {
  60
  61                                         // for cmd line compatibility with other gacutils
  62                                         // we always force it though
  63                                         if (args [i] == "-f" || args [i] == "/f")
  64                                                 continue;
  65
  66                                         // Ignore this option for now, although we might implement it someday
  67                                         if (args [i] == "/r") {
  68                                                 WriteLine ("WARNING: gacutil does not support traced references." +
  69                                                         "This option is being ignored.");
  70                                                 i += 3;
  71                                                 continue;
  72                                         }
  73
  74                                         // This is already handled we just dont want to choke on it
  75                                         if (args [i] == "-silent" || args [i] == "/silent")
  76                                                 continue;
  77
  78                                         if (args [i] == "-check_refs" || args [i] == "/check_refs") {
  79                                                 check_refs = true;
  80                                                 continue;
  81                                         }
  82
  83                                         if (command == Command.Unknown) {
  84                                                 command = GetCommand (args [i]);
  85                                                 if (command != Command.Unknown) {
  86                                                         command_str = args [i];
  87                                                         continue;
  88                                                 }
  89                                         }
  90
  91                                         if (i + 1 >= args.Length) {
  92                                                 Console.WriteLine ("Option " + args [i] + " takes 1 argument");
  93                                                 return 1;
  94                                         }
  95
  96                                         switch (args [i]) {
  97                                         case "-package":
  98                                         case "/package":
  99                                                 package = args [++i];
 100                                                 continue;
 101                                         case "-root":
 102                                         case "/root":
 103                                                 root = args [++i];
 104                                                 continue;
 105                                         case "-gacdir":
 106                                         case "/gacdir":
 107                                                 gacdir = args [++i];
 108                                                 continue;
 109                                         }
 110                                 }
 111                                 if (name == null)
 112                                         name = args [i];
 113                                 else
 114                                         name += args [i];
 115                         }
 116
 117                         if (command == Command.Unknown && IsSwitch (args [0])) {
 118                                 Console.WriteLine ("Unknown command: " + args [0]);
 119                                 return 1;
 120                         } else if (command == Command.Unknown) {
 121                                 Usage ();
 122                         } else if (command == Command.Help) {
 123                                 ShowHelp (true);
 124                                 return 1;
 125                         }
 126
 127                         if (gacdir == null) {
 128                                 gacdir = GetGacDir ();
 129                                 libdir = GetLibDir ();
 130                         } else {
 131                                 gacdir = EnsureLib (gacdir);
 132                                 libdir = Path.Combine (gacdir, "mono");
 133                                 gacdir = Path.Combine (libdir, "gac");
 134                         }
 135
 136                         string link_gacdir = gacdir;
 137                         string link_libdir = libdir;
 138                         if (root != null) {
 139                                 libdir = Path.Combine (root, "mono");
 140                                 gacdir = Path.Combine (libdir, "gac");
 141                         }
 142
 143                         switch (command) {
 144                         case Command.Install:
 145                                 if (name == null) {
 146                                         WriteLine ("Option " + command_str + " takes 1 argument");
 147                                         return 1;
 148                                 }
 149                                 if (!Install (check_refs, name, package, gacdir, link_gacdir, libdir, link_libdir))
 150                                         return 1;
 151                                 break;
 152                         case Command.InstallFromList:
 153                                 if (name == null) {
 154                                         WriteLine ("Option " + command_str + " takes 1 argument");
 155                                         return 1;
 156                                 }
 157                                 if (!InstallFromList (check_refs, name, package, gacdir, link_gacdir, libdir, link_libdir))
 158                                         return 1;
 159                                 break;
 160                         case Command.Uninstall:
 161                                 if (name == null) {
 162                                         WriteLine ("Option " + command_str + " takes 1 argument");
 163                                         return 1;
 164                                 }
 165                                 if (!Uninstall (name, package, gacdir, libdir))
 166                                         Environment.Exit (1);
 167                                 break;
 168                         case Command.UninstallFromList:
 169                                 if (name == null) {
 170                                         WriteLine ("Option " + command_str + " takes 1 argument");
 171                                         return 1;
 172                                 }
 173                                 if (!UninstallFromList (name, package, gacdir, libdir))
 174                                         return 1;
 175                                 break;
 176                         case Command.UninstallSpecific:
 177                                 if (name == null) {
 178                                         WriteLine ("Option " + command_str + " takes 1 argument");
 179                                         return 1;
 180                                 }
 181                                 if (!UninstallSpecific (name, package, gacdir, libdir))
 182                                         return 1;
 183                                 break;
 184                         case Command.List:
 185                                 List (name, gacdir);
 186                                 break;
 187                         }
 188
 189                         return 0;
 190                 }
 191
 192                 static void Copy (string source, string target, bool v)
 193                 {
 194                         try {
 195                                 File.Delete (target);
 196                         } catch {}
 197                         File.Copy (source, target, v);
 198                 }
 199
 200                 private static bool Install (bool check_refs, string name, string package,
 201                                 string gacdir, string link_gacdir, string libdir, string link_libdir)
 202                 {
 203                         string failure_msg = "Failure adding assembly to the cache: ";
 204                         ArrayList resources;
 205
 206                         if (!File.Exists (name)) {
 207                                 WriteLine (failure_msg + "The system cannot find the file specified.");
 208                                 Environment.Exit (1);
 209                         }
 210
 211                         Assembly assembly = null;
 212                         AssemblyName an = null;
 213                         byte [] pub_tok;
 214
 215                         try {
 216                                 assembly = Assembly.LoadFrom (name);
 217                         } catch {
 218                                 WriteLine (failure_msg + "The file specified is not a valid assembly.");
 219                                 return false;
 220                         }
 221
 222                         an = assembly.GetName ();
 223                         pub_tok = an.GetPublicKeyToken ();
 224                         if (pub_tok == null || pub_tok.Length == 0) {
 225                                 WriteLine (failure_msg + "Attempt to install an assembly without a strong name.");
 226                                 return false;
 227                         }
 228
 229                         resources = new ArrayList ();
 230                         foreach (string res_name in assembly.GetManifestResourceNames ()) {
 231                                 ManifestResourceInfo res_info = assembly.GetManifestResourceInfo (res_name);
 232
 233                                 if ((res_info.ResourceLocation & ResourceLocation.Embedded) == 0) {
 234                                         if (!File.Exists (res_info.FileName)) {
 235                                                 WriteLine (failure_msg + "The system cannot find resource " + res_info.FileName);
 236                                                 return false;
 237                                         }
 238
 239                                         resources.Add (res_info);
 240                                 }
 241                         }
 242
 243                         if (check_refs && !CheckReferencedAssemblies (an)) {
 244                                 WriteLine (failure_msg + "Attempt to install an assembly that references non " +
 245                                                 "strong named assemblies with -check_refs enabled.");
 246                                 return false;
 247                         }
 248
 249                         string [] siblings = { ".config", ".mdb" };
 250                         string version_token = an.Version + "_" +
 251                                                an.CultureInfo.Name.ToLower (CultureInfo.InvariantCulture) + "_" +
 252                                                GetStringToken (pub_tok);
 253                         string full_path = Path.Combine (Path.Combine (gacdir, an.Name), version_token);
 254                         string asmb_file = Path.GetFileName (name);
 255                         string asmb_path = Path.Combine (full_path, asmb_file);
 256
 257                         try {
 258                                 if (Directory.Exists (full_path)) {
 259                                         // Wipe out the directory. This way we ensure old assemblies
 260                                         // config files, and AOTd files are removed.
 261                                         Directory.Delete (full_path, true);
 262                                 }
 263                                 Directory.CreateDirectory (full_path);
 264                         } catch {
 265                                 WriteLine (failure_msg + "gac directories could not be created, " +
 266                                                 "possibly permission issues.");
 267                                 return false;
 268                         }
 269
 270                         Copy (name, asmb_path, true);
 271
 272                         foreach (string ext in siblings) {
 273                                 string sibling = String.Concat (name, ext);
 274                                 if (File.Exists (sibling))
 275                                         Copy (sibling, String.Concat (asmb_path, ext), true);
 276                         }
 277
 278                         foreach (ManifestResourceInfo resource_info in resources) {
 279                                 try {
 280                                         Copy (resource_info.FileName, Path.Combine (full_path, Path.GetFileName (resource_info.FileName)), true);
 281                                 } catch {
 282                                         WriteLine ("ERROR: Could not install resource file " + resource_info.FileName);
 283                                         Environment.Exit (1);
 284                                 }
 285                         }
 286
 287                         if (package != null) {
 288                                 string ref_dir = Path.Combine (libdir, package);
 289                                 string ref_path = Path.Combine (ref_dir, asmb_file);
 290
 291                                 if (File.Exists (ref_path))
 292                                         File.Delete (ref_path);
 293                                 try {
 294                                         Directory.CreateDirectory (ref_dir);
 295                                 } catch {
 296                                         WriteLine ("ERROR: Could not create package dir file.");
 297                                         Environment.Exit (1);
 298                                 }
 299                                 if (Path.DirectorySeparatorChar == '/') {
 300                                         string pkg_path = "../gac/" + an.Name + "/" + version_token + "/" + asmb_file;
 301                                         symlink (pkg_path, ref_path);
 302
 303                                         foreach (string ext in siblings) {
 304                                                 string sibling = String.Concat (pkg_path, ext);
 305                                                 string sref = String.Concat (ref_path, ext);
 306                                                 if (File.Exists (sibling))
 307                                                         symlink (sibling, sref);
 308                                                 else {
 309                                                         try {
 310                                                                 File.Delete (sref);
 311                                                         } catch {
 312                                                                 // Ignore error, just delete files that should not be there.
 313                                                         }
 314                                                 }
 315                                         }
 316                                         WriteLine ("Package exported to: {0} -> {1}", ref_path, pkg_path);
 317                                 } else {
 318                                         // string link_path = Path.Combine (Path.Combine (link_gacdir, an.Name), version_token);
 319                                         //
 320                                         // We can't use 'link_path' here, since it need not be a valid path at the time 'gacutil'
 321                                         // is run, esp. when invoked in a DESTDIR install.
 322                                         Copy (name, ref_path, true);
 323                                         WriteLine ("Package exported to: " + ref_path);
 324                                 }
 325                         }
 326
 327                         WriteLine ("{0} installed into the gac ({1})", an.Name, gacdir);
 328                         return true;
 329                 }
 330
 331                 private static bool Uninstall (string name, string package, string gacdir, string libdir)
 332                 {
 333                         string [] assembly_pieces = name.Split (new char[] { ',' });
 334                         Hashtable asm_info = new Hashtable ();
 335
 336                         foreach (string item in assembly_pieces) {
 337                                 if (item == String.Empty) continue;
 338                                 string[] pieces = item.Trim ().Split (new char[] { '=' }, 2);
 339                                 if(pieces.Length == 1)
 340                                         asm_info ["assembly"] = pieces [0];
 341                                 else
 342                                         asm_info [pieces[0].Trim ().ToLower (CultureInfo.InvariantCulture)] = pieces [1];
 343                         }
 344
 345                         string asmdir = Path.Combine (gacdir, (string) asm_info ["assembly"]);
 346                         if (!Directory.Exists (asmdir)) {
 347                                 WriteLine ("No assemblies found that match: " + name);
 348                                 return false;
 349                         }
 350
 351                         string searchString = GetSearchString (asm_info);
 352                         string [] directories = Directory.GetDirectories (asmdir, searchString);
 353
 354                         foreach (string dir in directories) {
 355                                 Directory.Delete (dir, true);
 356                                 if (package != null) {
 357                                         string link_dir = Path.Combine (libdir, package);
 358                                         string link = Path.Combine (link_dir, (string) asm_info ["assembly"] + ".dll");
 359                                         File.Delete (link);
 360                                         if (Directory.GetFiles (link_dir).Length == 0) {
 361                                                 WriteLine ("Cleaning package directory, it is empty.");
 362                                                 try {
 363                                                         Directory.Delete (link_dir);
 364                                                 } catch {
 365                                                         // Workaround: GetFiles does not list Symlinks
 366                                                 }
 367                                         }
 368                                 }
 369                                 WriteLine ("Assembly removed from the gac.");
 370                         }
 371
 372                         if(Directory.GetDirectories (asmdir).Length == 0) {
 373                                 WriteLine ("Cleaning assembly dir, it is empty");
 374                                 try {
 375                                         Directory.Delete (asmdir);
 376                                 } catch {
 377                                         // Workaround: GetFiles does not list Symlinks
 378                                 }
 379                         }
 380
 381                         return true;
 382                 }
 383
 384                 private static bool UninstallSpecific (string name, string package,
 385                                 string gacdir, string libdir)
 386                 {
 387                         string failure_msg = "Failure to remove assembly from the cache: ";
 388
 389                         if (!File.Exists (name)) {
 390                                 WriteLine (failure_msg + "The system cannot find the file specified.");
 391                                 return false;
 392                         }
 393
 394                         AssemblyName an = null;
 395
 396                         try {
 397                                 an = AssemblyName.GetAssemblyName (name);
 398                         } catch {
 399                                 WriteLine (failure_msg + "The file specified is not a valid assembly.");
 400                                 return false;
 401                         }
 402
 403                         return Uninstall (an.FullName.Replace (" ", String.Empty),
 404                                         package, gacdir, libdir);
 405                 }
 406
 407                 private static void List (string name, string gacdir)
 408                 {
 409                         WriteLine ("The following assemblies are installed into the GAC:");
 410
 411                         if (name != null) {
 412                                 FilteredList (name, gacdir);
 413                                 return;
 414                         }
 415
 416                         int count = 0;
 417                         DirectoryInfo gacinfo = new DirectoryInfo (gacdir);
 418                         foreach (DirectoryInfo parent in gacinfo.GetDirectories ()) {
 419                                 foreach (DirectoryInfo dir in parent.GetDirectories ()) {
 420                                         string asmb = Path.Combine (Path.Combine (parent.FullName, dir.Name), parent.Name) + ".dll";
 421                                         if (File.Exists (asmb)) {
 422                                                 WriteLine (AsmbNameFromVersionString (parent.Name, dir.Name));
 423                                                 count++;
 424                                         }
 425                                 }
 426                         }
 427                         WriteLine ("Number of items = " + count);
 428                 }
 429
 430                 private static void FilteredList (string name, string gacdir)
 431                 {
 432                         string [] assembly_pieces = name.Split (new char[] { ',' });
 433                         Hashtable asm_info = new Hashtable ();
 434
 435                         foreach (string item in assembly_pieces) {
 436                                 string[] pieces = item.Trim ().Split (new char[] { '=' }, 2);
 437                                 if(pieces.Length == 1)
 438                                         asm_info ["assembly"] = pieces [0];
 439                                 else
 440                                         asm_info [pieces[0].Trim ().ToLower (CultureInfo.InvariantCulture)] = pieces [1];
 441                         }
 442
 443                         string asmdir = Path.Combine (gacdir, (string) asm_info ["assembly"]);
 444                         if (!Directory.Exists (asmdir)) {
 445                                 WriteLine ("Number of items = 0");
 446                                 return;
 447                         }
 448                         string search = GetSearchString (asm_info);
 449                         string [] dir_list = Directory.GetDirectories (asmdir, search);
 450
 451                         int count = 0;
 452                         foreach (string dir in dir_list) {
 453                                 string asmb = Path.Combine (dir, (string) asm_info ["assembly"]) + ".dll";
 454                                 if (File.Exists (asmb)) {
 455                                         WriteLine (AsmbNameFromVersionString ((string) asm_info ["assembly"],
 456                                                                    new DirectoryInfo (dir).Name));
 457                                         count++;
 458                                 }
 459                         }
 460                         WriteLine ("Number of items = " + count);
 461                 }
 462
 463                 private static bool InstallFromList (bool check_refs, string list_file, string package,
 464                                 string gacdir, string link_gacdir, string libdir, string link_libdir)
 465                 {
 466                         StreamReader s = null;
 467                         int processed, failed;
 468
 469                         processed = failed = 0;
 470
 471                         try {
 472                                 s = new StreamReader (list_file);
 473
 474                                 string line;
 475                                 while ((line = s.ReadLine ()) != null) {
 476                                         if (!Install (check_refs, line, package, gacdir, link_gacdir,
 477                                                             libdir, link_libdir))
 478                                                 failed++;
 479                                         processed++;
 480
 481                                 }
 482                         } catch (IOException ioe) {
 483                                 WriteLine ("Failed to open assemblies list file " + list_file + ".");
 484                                 return false;
 485                         } finally {
 486                                 if (s != null)
 487                                         s.Close ();
 488                         }
 489
 490                         return true;
 491                 }
 492
 493                 private static bool UninstallFromList (string list_file, string package,
 494                                 string gacdir, string libdir)
 495                 {
 496                         StreamReader s = null;
 497                         int processed, failed;
 498
 499                         processed = failed = 0;
 500
 501                         try {
 502                                 s = new StreamReader (list_file);
 503
 504                                 string line;
 505                                 while ((line = s.ReadLine ()) != null) {
 506                                         if (!Uninstall (line, package, gacdir, libdir))
 507                                                 failed++;
 508                                         processed++;
 509                                 }
 510                         } catch (IOException ioe) {
 511                                 WriteLine ("Failed to open assemblies list file " + list_file + ".");
 512                                 return false;
 513                         } finally {
 514                                 if (s != null)
 515                                         s.Close ();
 516                         }
 517
 518                         return true;
 519                 }
 520
 521                 private static bool CheckReferencedAssemblies (AssemblyName an)
 522                 {
 523                         AppDomain d = null;
 524                         try {
 525                                 Assembly a = Assembly.LoadFrom (an.CodeBase);
 526                                 AssemblyName corlib = typeof (object).Assembly.GetName ();
 527
 528                                 foreach (AssemblyName ref_an in a.GetReferencedAssemblies ()) {
 529                                         if (ref_an.Name == corlib.Name) // Just do a string compare so we can install on diff versions
 530                                                 continue;
 531                                         byte [] pt = ref_an.GetPublicKeyToken ();
 532                                         if (pt == null || pt.Length == 0) {
 533                                                 WriteLine ("Assembly " + ref_an.Name + " is not strong named.");
 534                                                 return false;
 535                                         }
 536                                 }
 537                         } catch  (Exception e) {
 538                                 WriteLine (e.ToString ()); // This should be removed pre beta3
 539                                 return false;
 540                         } finally {
 541                                 if (d != null) {
 542                                         try {
 543                                                 AppDomain.Unload (d);
 544                                         } catch { }
 545                                 }
 546                         }
 547
 548                         return true;
 549                 }
 550
 551                 private static string GetSearchString (Hashtable asm_info)
 552                 {
 553                         if (asm_info.Keys.Count == 1)
 554                                 return "*";
 555                         string version, culture, token;
 556
 557                         version = asm_info ["version"] as string;
 558                         version = (version == null ? "*" : version);
 559                         culture = asm_info ["culture"] as string;
 560                         culture = (culture == null ? "*" : (culture == "neutral") ? String.Empty : culture.ToLower (CultureInfo.InvariantCulture));
 561                         token = asm_info ["publickeytoken"] as string;
 562                         token = (token == null ? "*" : token.ToLower (CultureInfo.InvariantCulture));
 563
 564                         return String.Format ("{0}_{1}_{2}", version, culture, token);
 565                 }
 566
 567                 private static string AsmbNameFromVersionString (string name, string str)
 568                 {
 569                         string [] pieces = str.Split ('_');
 570                         return String.Format ("{0}, Version={1}, Culture={2}, PublicKeyToken={3}",
 571                                         name, pieces [0], (pieces [1] == String.Empty ? "neutral" : pieces [1]),
 572                                         pieces [2]);
 573                 }
 574
 575                 private static bool IsSwitch (string arg)
 576                 {
 577                         return (arg [0] == '-' || arg [0] == '/');
 578                 }
 579
 580                 private static Command GetCommand (string arg)
 581                 {
 582                         Command c = Command.Unknown;
 583
 584                         switch (arg) {
 585                         case "-i":
 586                         case "/i":
 587                         case "--install":
 588                                 c = Command.Install;
 589                                 break;
 590                         case "-il":
 591                         case "/il":
 592                         case "--install-from-list":
 593                                 c = Command.InstallFromList;
 594                                 break;
 595                         case "-u":
 596                         case "/u":
 597                         case "/uf":
 598                         case "--uninstall":
 599                                 c = Command.Uninstall;
 600                                 break;
 601                         case "-ul":
 602                         case "/ul":
 603                         case "--uninstall-from-list":
 604                                 c = Command.UninstallFromList;
 605                                 break;
 606                         case "-us":
 607                         case "/us":
 608                         case "--uninstall-specific":
 609                                 c = Command.UninstallSpecific;
 610                                 break;
 611                         case "-l":
 612                         case "/l":
 613                         case "--list":
 614                                 c = Command.List;
 615                                 break;
 616                         case "-?":
 617                         case "/?":
 618                         case "--help":
 619                                 c = Command.Help;
 620                                 break;
 621                         }
 622                         return c;
 623                 }
 624
 625                 [DllImport ("libc", SetLastError=true)]
 626                 public static extern int symlink (string oldpath, string newpath);
 627
 628                 private static string GetGacDir () {
 629                         PropertyInfo gac = typeof (System.Environment).GetProperty ("GacPath",
 630                                         BindingFlags.Static|BindingFlags.NonPublic);
 631                         if (gac == null) {
 632                                 WriteLine ("ERROR: Mono runtime not detected, please use " +
 633                                                 "the mono runtime for gacutil.exe");
 634                                 Environment.Exit (1);
 635                         }
 636                         MethodInfo get_gac = gac.GetGetMethod (true);
 637                         return (string) get_gac.Invoke (null, null);
 638                 }
 639
 640                 private static string GetLibDir () {
 641                         MethodInfo libdir = typeof (System.Environment).GetMethod ("internalGetGacPath",
 642                                         BindingFlags.Static|BindingFlags.NonPublic);
 643                         if (libdir == null) {
 644                                 WriteLine ("ERROR: Mono runtime not detected, please use " +
 645                                                 "the mono runtime for gacutil.exe");
 646                                 Environment.Exit (1);
 647                         }
 648                         return Path.Combine ((string)libdir.Invoke (null, null), "mono");
 649                 }
 650
 651                 private static string GetStringToken (byte[] tok)
 652                 {
 653                         StringBuilder sb = new StringBuilder ();
 654                         for (int i = 0; i < tok.Length ; i++)
 655                                 sb.Append (tok[i].ToString ("x2"));
 656                         return sb.ToString ();
 657                 }
 658
 659                 private static string CombinePaths (string a, string b)
 660                 {
 661                         string dsc = Path.DirectorySeparatorChar.ToString ();
 662                         string sep = (a.EndsWith (dsc) ? String.Empty : dsc);
 663                         string end = (b.StartsWith (dsc) ? b.Substring (1) : b);
 664                         return String.Concat (a, sep, end);
 665                 }
 666
 667                 private static string EnsureLib (string dir)
 668                 {
 669                         DirectoryInfo d = new DirectoryInfo (dir);
 670                         if (d.Name == "lib")
 671                                 return dir;
 672                         return Path.Combine (dir, "lib");
 673                 }
 674
 675                 private static void WriteLine ()
 676                 {
 677                         if (silent)
 678                                 return;
 679                         Console.WriteLine ();
 680                 }
 681
 682                 private static void WriteLine (string line)
 683                 {
 684                         if (silent)
 685                                 return;
 686                         Console.WriteLine (line);
 687                 }
 688
 689                 private static void WriteLine (string line, params object [] p)
 690                 {
 691                         if (silent)
 692                                 return;
 693                         Console.WriteLine (line, p);
 694                 }
 695
 696                 private static void Usage ()
 697                 {
 698                         ShowHelp (false);
 699                         Environment.Exit (1);
 700                 }
 701
 702                 private static void ShowHelp (bool detailed)
 703                 {
 704                         WriteLine ("Usage: gacutil.exe <commands> [ <options> ]");
 705                         WriteLine ("Commands:");
 706
 707                         WriteLine ("-i <assembly_path> [-check_refs] [-package NAME] [-root ROOTDIR] [-gacdir GACDIR]");
 708                         WriteLine ("\tInstalls an assembly into the global assembly cache.");
 709                         if (detailed) {
 710                                 WriteLine ("\t<assembly_path> is the name of the file that contains the " +
 711                                                 "\tassembly manifest\n" +
 712                                                 "\tExample: -i myDll.dll");
 713                         }
 714                         WriteLine ();
 715
 716                         WriteLine ("-il <assembly_list_file> [-check_refs] [-package NAME] [-root ROOTDIR] [-gacdir GACDIR]");
 717                         WriteLine ("\tInstalls one or more assemblies into the global assembly cache.");
 718                         if (detailed) {
 719                                 WriteLine ("\t<assembly_list_file> is the path to a test file containing a list of\n" +
 720                                                 "\tassembly file paths on separate lines.\n" +
 721                                                 "\tExample -il assembly_list.txt\n" +
 722                                                 "\t\tassembly_list.txt contents:\n" +
 723                                                 "\t\tassembly1.dll\n" +
 724                                                 "\t\tassembly2.dll");
 725                         }
 726                         WriteLine ();
 727
 728                         WriteLine ("-u <assembly_display_name> [-package NAME] [-root ROOTDIR] [-gacdir GACDIR]");
 729                         WriteLine ("\tUninstalls an assembly from the global assembly cache.");
 730                         if (detailed) {
 731                                 WriteLine ("\t<assembly_display_name> is the name of the assembly (partial or\n" +
 732                                                 "\tfully qualified) to remove from the global assembly cache. If a \n" +
 733                                                 "\tpartial name is specified all matching assemblies will be uninstalled.\n" +
 734                                                 "\tExample: -u myDll,Version=1.2.1.0");
 735                         }
 736                         WriteLine ();
 737
 738                         WriteLine ("-ul <assembly_list_file> [-package NAME] [-root ROOTDIR] [-gacdir GACDIR]");
 739                         WriteLine ("\tUninstalls one or more assemblies from the global assembly cache.");
 740                         if (detailed) {
 741                                 WriteLine ("\t<assembly_list_file> is the path to a test file containing a list of\n" +
 742                                                 "\tassembly names on separate lines.\n" +
 743                                                 "\tExample -ul assembly_list.txt\n" +
 744                                                 "\t\tassembly_list.txt contents:\n" +
 745                                                 "\t\tassembly1,Version=1.0.0.0,Culture=en,PublicKeyToken=0123456789abcdef\n" +
 746                                                 "\t\tassembly2,Version=2.0.0.0,Culture=en,PublicKeyToken=0123456789abcdef");
 747                         }
 748                         WriteLine ();
 749
 750                         WriteLine ("-us <assembly_path> [-package NAME] [-root ROOTDIR] [-gacdir GACDIR]");
 751                         WriteLine ("\tUninstalls an assembly using the specifed assemblies full name.");
 752                         if (detailed) {
 753                                 WriteLine ("\t<assembly path> is the path to an assembly. The full assembly name\n" +
 754                                                 "\tis retrieved from the specified assembly if there is an assembly in\n" +
 755                                                 "\tthe GAC with a matching name, it is removed.\n" +
 756                                                 "\tExample: -us myDll.dll");
 757                         }
 758                         WriteLine ();
 759
 760                         WriteLine ("-l [assembly_name] [-root ROOTDIR] [-gacdir GACDIR]");
 761                         WriteLine ("\tLists the contents of the global assembly cache.");
 762                         if (detailed) {
 763                                 WriteLine ("\tWhen the <assembly_name> parameter is specified only matching\n" +
 764                                                 "\tassemblies are listed.");
 765                         }
 766                         WriteLine ();
 767
 768                         WriteLine ("-?");
 769                         WriteLine ("\tDisplays a detailed help screen");
 770                         WriteLine ();
 771
 772                         if (!detailed)
 773                                 return;
 774
 775                         WriteLine ("Options:");
 776                         WriteLine ("-package <NAME>");
 777                         WriteLine ("\tUsed to create a directory in prefix/lib/mono with the name NAME, and a\n" +
 778                                         "\tsymlink is created from NAME/assembly_name to the assembly on the GAC.\n" +
 779                                         "\tThis is used so developers can reference a set of libraries at once.");
 780                         WriteLine ();
 781
 782                         WriteLine ("-gacdir <GACDIR>");
 783                         WriteLine ("\tUsed to specify the GACs base directory. Once an assembly has been installed\n" +
 784                                         "\tto a non standard gacdir the MONO_GAC_PREFIX environment variable must be used\n" +
 785                                         "\tto access the assembly.");
 786                         WriteLine ();
 787
 788                         WriteLine ("-root <ROOTDIR>");
 789                         WriteLine ("\tUsed by developers integrating this with automake tools or packaging tools\n" +
 790                                         "\tthat require a prefix directory to  be specified. The root represents the\n" +
 791                                         "\t\"libdir\" component of a prefix (typically prefix/lib).");
 792                         WriteLine ();
 793
 794                         WriteLine ("-check_refs");
 795                         WriteLine ("\tUsed to ensure that the assembly being installed into the GAC does not\n" +
 796                                         "\treference any non strong named assemblies. Assemblies being installed to\n" +
 797                                         "\tthe GAC should not reference non strong named assemblies, however the is\n" +
 798                                         "\tan optional check.");
 799
 800                         WriteLine ();
 801                         WriteLine ("Ignored Options:");
 802                         WriteLine ("-f");
 803                         WriteLine ("\tThe Mono gacutil ignores the -f option to maintain commandline compatibility with");
 804                         WriteLine ("\tother gacutils. gacutil will always force the installation of a new assembly.");
 805
 806                         WriteLine ();
 807                         WriteLine ("-r <reference_scheme> <reference_id> <description>");
 808                         WriteLine ("\tThe Mono gacutil has not implemented traced references and will emit a warning");
 809                         WriteLine ("\twhen this option is used.");
 810                 }
 811         }
 812 }
 813