mcs/tools/mkbundle/mkbundle.cs

   1 //
   2 // mkbundle: tool to create bundles.
   3 //
   4 // Based on the `make-bundle' Perl script written by Paolo Molaro (lupus@debian.org)
   5 //
   6 // TODO:
   7 //   [x] Rename the paths for the zip file that is downloaded
   8 //   [x] Update documentation with new flag
   9 //   [x] Load internationalized assemblies
  10 //   [x] Dependencies - if System.dll -> include Mono.Security.* (not needed, automatic)
  11 //   [x] --list-targets should download from a different url
  12 //   [x] --fetch-target should unpack zip file
  13 //   [x] Update --cross to use not a runtime, but an SDK
  14 //   [x] Update --local-targets to show the downloaded SDKs
  15 //
  16 // Author:
  17 //   Miguel de Icaza
  18 //
  19 // (C) Novell, Inc 2004
  20 // (C) 2016 Xamarin Inc
  21 //
  22 // Missing features:
  23 // * Add support for packaging native libraries, extracting at runtime and setting the library path.
  24 // * Implement --list-targets lists all the available remote targets
  25 //
  26 using System;
  27 using System.Diagnostics;
  28 using System.Xml;
  29 using System.Collections.Generic;
  30 using System.IO;
  31 using System.IO.Compression;
  32 using System.Runtime.InteropServices;
  33 using System.Text;
  34 using IKVM.Reflection;
  35 using System.Linq;
  36 using System.Net;
  37 using System.Threading.Tasks;
  38
  39 class MakeBundle {
  40         static string output = "a.out";
  41         static string object_out = null;
  42         static List<string> link_paths = new List<string> ();
  43         static Dictionary<string,string> libraries = new Dictionary<string,string> ();
  44         static bool autodeps = false;
  45         static bool keeptemp = false;
  46         static bool compile_only = false;
  47         static bool static_link = false;
  48         static string config_file = null;
  49         static string machine_config_file = null;
  50         static string config_dir = null;
  51         static string style = "linux";
  52         static bool bundled_header = false;
  53         static string os_message = "";
  54         static bool compress;
  55         static bool nomain;
  56         static string custom_main = null;
  57         static bool? use_dos2unix = null;
  58         static bool skip_scan;
  59         static string ctor_func;
  60         static bool quiet = true;
  61         static string cross_target = null;
  62         static string fetch_target = null;
  63         static bool custom_mode = true;
  64         static string embedded_options = null;
  65         static string runtime = null;
  66         static string sdk_path = null;
  67         static string lib_path = null;
  68         static Dictionary<string,string> environment = new Dictionary<string,string>();
  69         static string [] i18n = new string [] {
  70                 "West",
  71                 ""
  72         };
  73         static string [] i18n_all = new string [] {
  74                 "CJK",
  75                 "MidEast",
  76                 "Other",
  77                 "Rare",
  78                 "West",
  79                 ""
  80         };
  81         static string target_server = "https://download.mono-project.com/runtimes/raw/";
  82
  83         static int Main (string [] args)
  84         {
  85                 List<string> sources = new List<string> ();
  86                 int top = args.Length;
  87                 link_paths.Add (".");
  88
  89                 DetectOS ();
  90
  91                 for (int i = 0; i < top; i++){
  92                         switch (args [i]){
  93                         case "--help": case "-h": case "-?":
  94                                 Help ();
  95                                 return 1;
  96
  97                         case "--simple":
  98                                 custom_mode = false;
  99                                 autodeps = true;
 100                                 break;
 101
 102                         case "-v":
 103                                 quiet = false;
 104                                 break;
 105
 106                         case "--i18n":
 107                                 if (i+1 == top){
 108                                         Help ();
 109                                         return 1;
 110                                 }
 111                                 var iarg = args [++i];
 112                                 if (iarg == "all")
 113                                         i18n = i18n_all;
 114                                 else if (iarg == "none")
 115                                         i18n = new string [0];
 116                                 else
 117                                         i18n = iarg.Split (',');
 118                                 break;
 119
 120                         case "--custom":
 121                                 custom_mode = true;
 122                                 break;
 123
 124                         case "-c":
 125                                 compile_only = true;
 126                                 break;
 127
 128                         case "--local-targets":
 129                                 CommandLocalTargets ();
 130                                 return 0;
 131
 132                         case "--cross":
 133                                 if (i+1 == top){
 134                                         Help ();
 135                                         return 1;
 136                                 }
 137                                 if (sdk_path != null || runtime != null)
 138                                         Error ("You can not specify one of --runtime, --sdk or --cross");
 139                                 custom_mode = false;
 140                                 autodeps = true;
 141                                 cross_target = args [++i];
 142                                 break;
 143
 144                         case "--library":
 145                                 if (i+1 == top){
 146                                         Help ();
 147                                         return 1;
 148                                 }
 149                                 if (custom_mode){
 150                                         Console.Error.WriteLine ("--library can only be used with --simple/--runtime/--cross mode");
 151                                         Help ();
 152                                         return 1;
 153                                 }
 154                                 var lspec = args [++i];
 155                                 var p = lspec.IndexOf (",");
 156                                 string alias, path;
 157                                 if (p == -1){
 158                                         alias = Path.GetFileName (lspec);
 159                                         path = lspec;
 160                                 } else {
 161                                         alias = lspec.Substring (0, p);
 162                                         path = lspec.Substring (p+1);
 163                                 }
 164                                 if (!File.Exists (path))
 165                                         Error ($"The specified library file {path} does not exist");
 166                                 libraries [alias] = path;
 167                                 break;
 168
 169                         case "--fetch-target":
 170                                 if (i+1 == top){
 171                                         Help ();
 172                                         return 1;
 173                                 }
 174                                 fetch_target = args [++i];
 175                                 break;
 176
 177                         case "--list-targets":
 178                                 CommandLocalTargets ();
 179                                 var wc = new WebClient ();
 180                                 var s = wc.DownloadString (new Uri (target_server + "target-sdks.txt"));
 181                                 Console.WriteLine ("Targets available for download with --fetch-target:\n" + s);
 182                                 return 0;
 183
 184                         case "--target-server":
 185                                 if (i+1 == top){
 186                                         Help ();
 187                                         return 1;
 188                                 }
 189                                 target_server = args [++i];
 190                                 break;
 191
 192                         case "-o":
 193                                 if (i+1 == top){
 194                                         Help ();
 195                                         return 1;
 196                                 }
 197                                 output = args [++i];
 198                                 break;
 199
 200                         case "--options":
 201                                 if (i+1 == top){
 202                                         Help ();
 203                                         return 1;
 204                                 }
 205                                 embedded_options = args [++i];
 206                                 break;
 207                         case "--sdk":
 208                                 if (i + 1 == top) {
 209                                         Help ();
 210                                         return 1;
 211                                 }
 212                                 custom_mode = false;
 213                                 autodeps = true;
 214                                 sdk_path = args [++i];
 215                                 if (cross_target != null || runtime != null)
 216                                         Error ("You can not specify one of --runtime, --sdk or --cross");
 217                                 break;
 218                         case "--runtime":
 219                                 if (i+1 == top){
 220                                         Help ();
 221                                         return 1;
 222                                 }
 223                                 if (sdk_path != null || cross_target != null)
 224                                         Error ("You can only specify one of --runtime, --sdk or --cross");
 225                                 custom_mode = false;
 226                                 autodeps = true;
 227                                 runtime = args [++i];
 228                                 break;
 229                         case "-oo":
 230                                 if (i+1 == top){
 231                                         Help ();
 232                                         return 1;
 233                                 }
 234                                 object_out = args [++i];
 235                                 break;
 236
 237                         case "-L":
 238                                 if (i+1 == top){
 239                                         Help ();
 240                                         return 1;
 241                                 }
 242                                 link_paths.Add (args [++i]);
 243                                 break;
 244
 245                         case "--nodeps":
 246                                 autodeps = false;
 247                                 break;
 248
 249                         case "--deps":
 250                                 autodeps = true;
 251                                 break;
 252
 253                         case "--keeptemp":
 254                                 keeptemp = true;
 255                                 break;
 256
 257                         case "--static":
 258                                 static_link = true;
 259                                 break;
 260                         case "--config":
 261                                 if (i+1 == top) {
 262                                         Help ();
 263                                         return 1;
 264                                 }
 265
 266                                 config_file = args [++i];
 267                                 break;
 268                         case "--machine-config":
 269                                 if (i+1 == top) {
 270                                         Help ();
 271                                         return 1;
 272                                 }
 273
 274                                 machine_config_file = args [++i];
 275
 276                                 if (!quiet)
 277                                         Console.WriteLine ("WARNING:\n  Check that the machine.config file you are bundling\n  doesn't contain sensitive information specific to this machine.");
 278                                 break;
 279                         case "--config-dir":
 280                                 if (i+1 == top) {
 281                                         Help ();
 282                                         return 1;
 283                                 }
 284
 285                                 config_dir = args [++i];
 286                                 break;
 287                         case "-z":
 288                                 compress = true;
 289                                 break;
 290                         case "--nomain":
 291                                 nomain = true;
 292                                 break;
 293                         case "--custom-main":
 294                                 if (i+1 == top) {
 295                                         Help ();
 296                                         return 1;
 297                                 }
 298                                 custom_main = args [++i];
 299                                 break;
 300                         case "--style":
 301                                 if (i+1 == top) {
 302                                         Help ();
 303                                         return 1;
 304                                 }
 305                                 style = args [++i];
 306                                 switch (style) {
 307                                 case "windows":
 308                                 case "mac":
 309                                 case "linux":
 310                                         break;
 311                                 default:
 312                                         Error ("Invalid style '{0}' - only 'windows', 'mac' and 'linux' are supported for --style argument", style);
 313                                         return 1;
 314                                 }
 315
 316                                 break;
 317                         case "--skip-scan":
 318                                 skip_scan = true;
 319                                 break;
 320                         case "--static-ctor":
 321                                 if (i+1 == top) {
 322                                         Help ();
 323                                         return 1;
 324                                 }
 325                                 ctor_func = args [++i];
 326                                 break;
 327                         case "--dos2unix":
 328                         case "--dos2unix=true":
 329                                 use_dos2unix = true;
 330                                 break;
 331                         case "--dos2unix=false":
 332                                 use_dos2unix = false;
 333                                 break;
 334                         case "-q":
 335                         case "--quiet":
 336                                 quiet = true;
 337                                 break;
 338                         case "-e":
 339                         case "--env":
 340                                 if (i+1 == top) {
 341                                         Help ();
 342                                         return 1;
 343                                 }
 344                                 var env = args [++i];
 345                                 p = env.IndexOf ('=');
 346                                 if (p == -1)
 347                                         environment.Add (env, "");
 348                                 else
 349                                         environment.Add (env.Substring (0, p), env.Substring (p+1));
 350                                 break;
 351                         case "--bundled-header":
 352                                 bundled_header = true;
 353                                 break;
 354                         default:
 355                                 sources.Add (args [i]);
 356                                 break;
 357                         }
 358
 359                 }
 360                 // Modern bundling starts here
 361                 if (!custom_mode){
 362                         if (runtime != null){
 363                                 // Nothing to do here, the user has chosen to manually specify --runtime nad libraries
 364                         } else if (sdk_path != null) {
 365                                 VerifySdk (sdk_path);
 366                         } else if (cross_target == "default" || cross_target == null){
 367                                 sdk_path = Path.GetFullPath (Path.Combine (Process.GetCurrentProcess().MainModule.FileName, "..", ".."));
 368                                 VerifySdk (sdk_path);
 369                         } else {
 370                                 sdk_path = Path.Combine (targets_dir, cross_target);
 371                                 Console.WriteLine ("From: " + sdk_path);
 372                                 VerifySdk (sdk_path);
 373                         }
 374                 }
 375
 376                 if (fetch_target != null){
 377                         var directory = Path.Combine (targets_dir, fetch_target);
 378                         var zip_download = Path.Combine (directory, "sdk.zip");
 379                         Directory.CreateDirectory (directory);
 380                         var wc = new WebClient ();
 381                         var uri = new Uri ($"{target_server}{fetch_target}");
 382                         try {
 383                                 if (!quiet){
 384                                         Console.WriteLine ($"Downloading runtime {uri} to {zip_download}");
 385                                 }
 386
 387                                 wc.DownloadFile (uri, zip_download);
 388                                 ZipFile.ExtractToDirectory(zip_download, directory);
 389                                 File.Delete (zip_download);
 390                         } catch {
 391                                 Console.Error.WriteLine ($"Failure to download the specified runtime from {uri}");
 392                                 File.Delete (zip_download);
 393                                 return 1;
 394                         }
 395                         return 0;
 396                 }
 397
 398                 if (!quiet) {
 399                         Console.WriteLine (os_message);
 400                         Console.WriteLine ("Sources: {0} Auto-dependencies: {1}", sources.Count, autodeps);
 401                 }
 402
 403                 if (sources.Count == 0 || output == null) {
 404                         Help ();
 405                         Environment.Exit (1);
 406                 }
 407
 408                 List<string> assemblies = LoadAssemblies (sources);
 409                 LoadLocalizedAssemblies (assemblies);
 410                 List<string> files = new List<string> ();
 411                 foreach (string file in assemblies)
 412                         if (!QueueAssembly (files, file))
 413                                 return 1;
 414                 if (custom_mode)
 415                         GenerateBundles (files);
 416                 else
 417                         GeneratePackage (files);
 418
 419                 Console.WriteLine ("Generated {0}", output);
 420
 421                 return 0;
 422         }
 423
 424         static void VerifySdk (string path)
 425         {
 426                 if (!Directory.Exists (path))
 427                         Error ($"The specified SDK path does not exist: {path}");
 428                 runtime = Path.Combine (sdk_path, "bin", "mono");
 429                 if (!File.Exists (runtime))
 430                         Error ($"The SDK location does not contain a {path}/bin/mono runtime");
 431                 lib_path = Path.Combine (path, "lib", "mono", "4.5");
 432                 if (!Directory.Exists (lib_path))
 433                         Error ($"The SDK location does not contain a {path}/lib/mono/4.5 directory");
 434                 link_paths.Add (lib_path);
 435         }
 436
 437         static string targets_dir = Path.Combine (Environment.GetFolderPath (Environment.SpecialFolder.Personal), ".mono", "targets");
 438
 439         static void CommandLocalTargets ()
 440         {
 441                 string [] targets;
 442
 443                 Console.WriteLine ("Available targets locally:");
 444                 Console.WriteLine ("\tdefault\t- Current System Mono");
 445                 try {
 446                         targets = Directory.GetDirectories (targets_dir);
 447                 } catch {
 448                         return;
 449                 }
 450                 foreach (var target in targets){
 451                         var p = Path.Combine (target, "bin", "mono");
 452                         if (File.Exists (p))
 453                                 Console.WriteLine ("\t{0}", Path.GetFileName (target));
 454                 }
 455         }
 456
 457         static void WriteSymbol (StreamWriter sw, string name, long size)
 458         {
 459                 switch (style){
 460                 case "linux":
 461                         sw.WriteLine (
 462                                 ".globl {0}\n" +
 463                                 "\t.section .rodata\n" +
 464                                 "\t.p2align 5\n" +
 465                                 "\t.type {0}, \"object\"\n" +
 466                                 "\t.size {0}, {1}\n" +
 467                                 "{0}:\n",
 468                                 name, size);
 469                         break;
 470                 case "osx":
 471                         sw.WriteLine (
 472                                 "\t.section __TEXT,__text,regular,pure_instructions\n" +
 473                                 "\t.globl _{0}\n" +
 474                                 "\t.data\n" +
 475                                 "\t.align 4\n" +
 476                                 "_{0}:\n",
 477                                 name, size);
 478                         break;
 479                 case "windows":
 480                         sw.WriteLine (
 481                                 ".globl _{0}\n" +
 482                                 "\t.section .rdata,\"dr\"\n" +
 483                                 "\t.align 32\n" +
 484                                 "_{0}:\n",
 485                                 name, size);
 486                         break;
 487                 }
 488         }
 489
 490         static string [] chars = new string [256];
 491
 492         static void WriteBuffer (StreamWriter ts, Stream stream, byte[] buffer)
 493         {
 494                 int n;
 495
 496                 // Preallocate the strings we need.
 497                 if (chars [0] == null) {
 498                         for (int i = 0; i < chars.Length; i++)
 499                                 chars [i] = string.Format ("{0}", i.ToString ());
 500                 }
 501
 502                 while ((n = stream.Read (buffer, 0, buffer.Length)) != 0) {
 503                         int count = 0;
 504                         for (int i = 0; i < n; i++) {
 505                                 if (count % 32 == 0) {
 506                                         ts.Write ("\n\t.byte ");
 507                                 } else {
 508                                         ts.Write (",");
 509                                 }
 510                                 ts.Write (chars [buffer [i]]);
 511                                 count ++;
 512                         }
 513                 }
 514
 515                 ts.WriteLine ();
 516         }
 517
 518         class PackageMaker {
 519                 Dictionary<string, Tuple<long,int>> locations = new Dictionary<string, Tuple<long,int>> ();
 520                 const int align = 4096;
 521                 Stream package;
 522
 523                 public PackageMaker (string output)
 524                 {
 525                         package = File.Create (output, 128*1024);
 526                         if (IsUnix){
 527                                 File.SetAttributes (output, unchecked ((FileAttributes) 0x80000000));
 528                         }
 529                 }
 530
 531                 public int AddFile (string fname)
 532                 {
 533                         using (Stream fileStream = File.OpenRead (fname)){
 534                                 var ret = fileStream.Length;
 535
 536                                 if (!quiet)
 537                                         Console.WriteLine ("At {0:x} with input {1}", package.Position, fileStream.Length);
 538                                 fileStream.CopyTo (package);
 539                                 package.Position = package.Position + (align - (package.Position % align));
 540
 541                                 return (int) ret;
 542                         }
 543                 }
 544
 545                 public void Add (string entry, string fname)
 546                 {
 547                         var p = package.Position;
 548                         var size = AddFile (fname);
 549
 550                         locations [entry] = Tuple.Create(p, size);
 551                 }
 552
 553                 public void AddString (string entry, string text)
 554                 {
 555                         var bytes = Encoding.UTF8.GetBytes (text);
 556                         locations [entry] = Tuple.Create (package.Position, bytes.Length);
 557                         package.Write (bytes, 0, bytes.Length);
 558                         package.Position = package.Position + (align - (package.Position % align));
 559                 }
 560
 561                 public void AddStringPair (string entry, string key, string value)
 562                 {
 563                         var kbytes = Encoding.UTF8.GetBytes (key);
 564                         var vbytes = Encoding.UTF8.GetBytes (value);
 565
 566                         Console.WriteLine ("ADDING {0} to {1}", key, value);
 567                         if (kbytes.Length > 255){
 568                                 Console.WriteLine ("The key value can not exceed 255 characters: " + key);
 569                                 Environment.Exit (1);
 570                         }
 571
 572                         locations [entry] = Tuple.Create (package.Position, kbytes.Length+vbytes.Length+3);
 573                         package.WriteByte ((byte)kbytes.Length);
 574                         package.Write (kbytes, 0, kbytes.Length);
 575                         package.WriteByte (0);
 576                         package.Write (vbytes, 0, vbytes.Length);
 577                         package.WriteByte (0);
 578                         package.Position = package.Position + (align - (package.Position % align));
 579                 }
 580
 581                 public void Dump ()
 582                 {
 583                         if (quiet)
 584                                 return;
 585                         foreach (var floc in locations.Keys){
 586                                 Console.WriteLine ($"{floc} at {locations[floc]:x}");
 587                         }
 588                 }
 589
 590                 public void WriteIndex ()
 591                 {
 592                         var indexStart = package.Position;
 593                         var binary = new BinaryWriter (package);
 594
 595                         binary.Write (locations.Count);
 596                         foreach (var entry in from entry in locations orderby entry.Value.Item1 ascending select entry){
 597                                 var bytes = Encoding.UTF8.GetBytes (entry.Key);
 598                                 binary.Write (bytes.Length+1);
 599                                 binary.Write (bytes);
 600                                 binary.Write ((byte) 0);
 601                                 binary.Write (entry.Value.Item1);
 602                                 binary.Write (entry.Value.Item2);
 603                         }
 604                         binary.Write (indexStart);
 605                         binary.Write (Encoding.UTF8.GetBytes ("xmonkeysloveplay"));
 606                         binary.Flush ();
 607                 }
 608
 609                 public void Close ()
 610                 {
 611                         WriteIndex ();
 612                         package.Close ();
 613                         package = null;
 614                 }
 615         }
 616
 617         static bool MaybeAddFile (PackageMaker maker, string code, string file)
 618         {
 619                 if (file == null)
 620                         return true;
 621
 622                 if (!File.Exists (file)){
 623                         Error ("The file {0} does not exist", file);
 624                         return false;
 625                 }
 626                 maker.Add (code, file);
 627                 return true;
 628         }
 629
 630         static bool GeneratePackage (List<string> files)
 631         {
 632                 if (runtime == null){
 633                         if (IsUnix)
 634                                 runtime = Process.GetCurrentProcess().MainModule.FileName;
 635                         else {
 636                                 Error ("You must specify at least one runtime with --runtime or --cross");
 637                                 Environment.Exit (1);
 638                         }
 639                 }
 640                 if (!File.Exists (runtime)){
 641                         Error ($"The specified runtime at {runtime} does not exist");
 642                         Environment.Exit (1);
 643                 }
 644
 645                 if (ctor_func != null){
 646                         Error ("--static-ctor not supported with package bundling, you must use native compilation for this");
 647                         return false;
 648                 }
 649
 650                 var maker = new PackageMaker (output);
 651                 Console.WriteLine ("Using runtime: " + runtime);
 652                 maker.AddFile (runtime);
 653
 654                 foreach (var url in files){
 655                         string fname = LocateFile (new Uri (url).LocalPath);
 656                         string aname = MakeBundle.GetAssemblyName (fname);
 657
 658                         maker.Add ("assembly:" + aname, fname);
 659                         Console.WriteLine ("     Assembly: " + fname);
 660                         if (File.Exists (fname + ".config")){
 661                                 maker.Add ("config:" + aname, fname + ".config");
 662                                 Console.WriteLine ("       Config: " + runtime);
 663                         }
 664                 }
 665
 666                 if (!MaybeAddFile (maker, "systemconfig:", config_file) || !MaybeAddFile (maker, "machineconfig:", machine_config_file))
 667                         return false;
 668
 669                 if (config_dir != null)
 670                         maker.Add ("config_dir:", config_dir);
 671                 if (embedded_options != null)
 672                         maker.AddString ("options:", embedded_options);
 673                 if (environment.Count > 0){
 674                         foreach (var key in environment.Keys)
 675                                 maker.AddStringPair ("env:" + key, key, environment [key]);
 676                 }
 677                 if (libraries.Count > 0){
 678                         foreach (var alias_and_path in libraries){
 679                                 Console.WriteLine ("     Library:  " + alias_and_path.Value);
 680                                 maker.Add ("library:" + alias_and_path.Key, alias_and_path.Value);
 681                         }
 682                 }
 683                 maker.Dump ();
 684                 maker.Close ();
 685                 return true;
 686         }
 687
 688         static void GenerateBundles (List<string> files)
 689         {
 690                 string temp_s = "temp.s"; // Path.GetTempFileName ();
 691                 string temp_c = "temp.c";
 692                 string temp_o = "temp.o";
 693
 694                 if (compile_only)
 695                         temp_c = output;
 696                 if (object_out != null)
 697                         temp_o = object_out;
 698
 699                 try {
 700                         List<string> c_bundle_names = new List<string> ();
 701                         List<string[]> config_names = new List<string[]> ();
 702
 703                         using (StreamWriter ts = new StreamWriter (File.Create (temp_s))) {
 704                         using (StreamWriter tc = new StreamWriter (File.Create (temp_c))) {
 705                         string prog = null;
 706
 707                         if (bundled_header) {
 708                                 tc.WriteLine ("/* This source code was produced by mkbundle, do not edit */");
 709                                 tc.WriteLine ("\n#ifndef NULL\n#define NULL (void *)0\n#endif");
 710                                 tc.WriteLine (@"
 711 typedef struct {
 712         const char *name;
 713         const unsigned char *data;
 714         const unsigned int size;
 715 } MonoBundledAssembly;
 716 void          mono_register_bundled_assemblies (const MonoBundledAssembly **assemblies);
 717 void          mono_register_config_for_assembly (const char* assembly_name, const char* config_xml);
 718 ");
 719                         } else {
 720                                 tc.WriteLine ("#include <mono/metadata/mono-config.h>");
 721                                 tc.WriteLine ("#include <mono/metadata/assembly.h>\n");
 722                         }
 723
 724                         if (compress) {
 725                                 tc.WriteLine ("typedef struct _compressed_data {");
 726                                 tc.WriteLine ("\tMonoBundledAssembly assembly;");
 727                                 tc.WriteLine ("\tint compressed_size;");
 728                                 tc.WriteLine ("} CompressedAssembly;\n");
 729                         }
 730
 731                         object monitor = new object ();
 732
 733                         var streams = new Dictionary<string, Stream> ();
 734                         var sizes = new Dictionary<string, long> ();
 735
 736                         // Do the file reading and compression in parallel
 737                         Action<string> body = delegate (string url) {
 738                                 string fname = LocateFile (new Uri (url).LocalPath);
 739                                 Stream stream = File.OpenRead (fname);
 740
 741                                 long real_size = stream.Length;
 742                                 int n;
 743                                 if (compress) {
 744                                         byte[] cbuffer = new byte [8192];
 745                                         MemoryStream ms = new MemoryStream ();
 746                                         GZipStream deflate = new GZipStream (ms, CompressionMode.Compress, leaveOpen:true);
 747                                         while ((n = stream.Read (cbuffer, 0, cbuffer.Length)) != 0){
 748                                                 deflate.Write (cbuffer, 0, n);
 749                                         }
 750                                         stream.Close ();
 751                                         deflate.Close ();
 752                                         byte [] bytes = ms.GetBuffer ();
 753                                         stream = new MemoryStream (bytes, 0, (int) ms.Length, false, false);
 754                                 }
 755
 756                                 lock (monitor) {
 757                                         streams [url] = stream;
 758                                         sizes [url] = real_size;
 759                                 }
 760                         };
 761
 762                         //#if NET_4_5
 763 #if FALSE
 764                         Parallel.ForEach (files, body);
 765 #else
 766                         foreach (var url in files)
 767                                 body (url);
 768 #endif
 769
 770                         // The non-parallel part
 771                         byte [] buffer = new byte [8192];
 772                         // everything other than a-zA-Z0-9_ needs to be escaped in asm symbols.
 773                         var symbolEscapeRE = new System.Text.RegularExpressions.Regex ("[^\\w_]");
 774                         foreach (var url in files) {
 775                                 string fname = LocateFile (new Uri (url).LocalPath);
 776                                 string aname = MakeBundle.GetAssemblyName (fname);
 777                                 string encoded = symbolEscapeRE.Replace (aname, "_");
 778
 779                                 if (prog == null)
 780                                         prog = aname;
 781
 782                                 var stream = streams [url];
 783                                 var real_size = sizes [url];
 784
 785                                 if (!quiet)
 786                                         Console.WriteLine ("   embedding: " + fname);
 787
 788                                 WriteSymbol (ts, "assembly_data_" + encoded, stream.Length);
 789
 790                                 WriteBuffer (ts, stream, buffer);
 791
 792                                 if (compress) {
 793                                         tc.WriteLine ("extern const unsigned char assembly_data_{0} [];", encoded);
 794                                         tc.WriteLine ("static CompressedAssembly assembly_bundle_{0} = {{{{\"{1}\"," +
 795                                                                   " assembly_data_{0}, {2}}}, {3}}};",
 796                                                                   encoded, aname, real_size, stream.Length);
 797                                         if (!quiet) {
 798                                                 double ratio = ((double) stream.Length * 100) / real_size;
 799                                                 Console.WriteLine ("   compression ratio: {0:.00}%", ratio);
 800                                         }
 801                                 } else {
 802                                         tc.WriteLine ("extern const unsigned char assembly_data_{0} [];", encoded);
 803                                         tc.WriteLine ("static const MonoBundledAssembly assembly_bundle_{0} = {{\"{1}\", assembly_data_{0}, {2}}};",
 804                                                                   encoded, aname, real_size);
 805                                 }
 806                                 stream.Close ();
 807
 808                                 c_bundle_names.Add ("assembly_bundle_" + encoded);
 809
 810                                 try {
 811                                         FileStream cf = File.OpenRead (fname + ".config");
 812                                         if (!quiet)
 813                                                 Console.WriteLine (" config from: " + fname + ".config");
 814                                         tc.WriteLine ("extern const unsigned char assembly_config_{0} [];", encoded);
 815                                         WriteSymbol (ts, "assembly_config_" + encoded, cf.Length);
 816                                         WriteBuffer (ts, cf, buffer);
 817                                         ts.WriteLine ();
 818                                         config_names.Add (new string[] {aname, encoded});
 819                                 } catch (FileNotFoundException) {
 820                                         /* we ignore if the config file doesn't exist */
 821                                 }
 822                         }
 823
 824                         if (config_file != null){
 825                                 FileStream conf;
 826                                 try {
 827                                         conf = File.OpenRead (config_file);
 828                                 } catch {
 829                                         Error ("Failure to open {0}", config_file);
 830                                         return;
 831                                 }
 832                                 if (!quiet)
 833                                         Console.WriteLine ("System config from: " + config_file);
 834                                 tc.WriteLine ("extern const char system_config;");
 835                                 WriteSymbol (ts, "system_config", config_file.Length);
 836
 837                                 WriteBuffer (ts, conf, buffer);
 838                                 // null terminator
 839                                 ts.Write ("\t.byte 0\n");
 840                                 ts.WriteLine ();
 841                         }
 842
 843                         if (machine_config_file != null){
 844                                 FileStream conf;
 845                                 try {
 846                                         conf = File.OpenRead (machine_config_file);
 847                                 } catch {
 848                                         Error ("Failure to open {0}", machine_config_file);
 849                                         return;
 850                                 }
 851                                 if (!quiet)
 852                                         Console.WriteLine ("Machine config from: " + machine_config_file);
 853                                 tc.WriteLine ("extern const char machine_config;");
 854                                 WriteSymbol (ts, "machine_config", machine_config_file.Length);
 855
 856                                 WriteBuffer (ts, conf, buffer);
 857                                 ts.Write ("\t.byte 0\n");
 858                                 ts.WriteLine ();
 859                         }
 860                         ts.Close ();
 861
 862                         if (compress)
 863                                 tc.WriteLine ("\nstatic const CompressedAssembly *compressed [] = {");
 864                         else
 865                                 tc.WriteLine ("\nstatic const MonoBundledAssembly *bundled [] = {");
 866
 867                         foreach (string c in c_bundle_names){
 868                                 tc.WriteLine ("\t&{0},", c);
 869                         }
 870                         tc.WriteLine ("\tNULL\n};\n");
 871                         tc.WriteLine ("static char *image_name = \"{0}\";", prog);
 872
 873                         if (ctor_func != null) {
 874                                 tc.WriteLine ("\nextern void {0} (void);", ctor_func);
 875                                 tc.WriteLine ("\n__attribute__ ((constructor)) static void mono_mkbundle_ctor (void)");
 876                                 tc.WriteLine ("{{\n\t{0} ();\n}}", ctor_func);
 877                         }
 878
 879                         tc.WriteLine ("\nstatic void install_dll_config_files (void) {\n");
 880                         foreach (string[] ass in config_names){
 881                                 tc.WriteLine ("\tmono_register_config_for_assembly (\"{0}\", assembly_config_{1});\n", ass [0], ass [1]);
 882                         }
 883                         if (config_file != null)
 884                                 tc.WriteLine ("\tmono_config_parse_memory (&system_config);\n");
 885                         if (machine_config_file != null)
 886                                 tc.WriteLine ("\tmono_register_machine_config (&machine_config);\n");
 887                         tc.WriteLine ("}\n");
 888
 889                         if (config_dir != null)
 890                                 tc.WriteLine ("static const char *config_dir = \"{0}\";", config_dir);
 891                         else
 892                                 tc.WriteLine ("static const char *config_dir = NULL;");
 893
 894                         Stream template_stream;
 895                         if (compress) {
 896                                 template_stream = System.Reflection.Assembly.GetAssembly (typeof(MakeBundle)).GetManifestResourceStream ("template_z.c");
 897                         } else {
 898                                 template_stream = System.Reflection.Assembly.GetAssembly (typeof(MakeBundle)).GetManifestResourceStream ("template.c");
 899                         }
 900
 901                         StreamReader s = new StreamReader (template_stream);
 902                         string template = s.ReadToEnd ();
 903                         tc.Write (template);
 904
 905                         if (!nomain && custom_main == null) {
 906                                 Stream template_main_stream = System.Reflection.Assembly.GetAssembly (typeof(MakeBundle)).GetManifestResourceStream ("template_main.c");
 907                                 StreamReader st = new StreamReader (template_main_stream);
 908                                 string maintemplate = st.ReadToEnd ();
 909                                 tc.Write (maintemplate);
 910                         }
 911
 912                         tc.Close ();
 913
 914                         string assembler = GetEnv("AS", "as");
 915                         string as_cmd = String.Format("{0} -o {1} {2} ", assembler, temp_o, temp_s);
 916                         Execute(as_cmd);
 917
 918                         if (compile_only)
 919                                 return;
 920
 921                         if (!quiet)
 922                                 Console.WriteLine("Compiling:");
 923
 924                         if (style == "windows")
 925                         {
 926
 927                                 Func<string, string> quote = (pp) => { return "\"" + pp + "\""; };
 928
 929                                 string compiler = GetEnv("CC", "cl.exe");
 930                                 string winsdkPath = GetEnv("WINSDK", @"C:\Program Files (x86)\Windows Kits\8.1");
 931                                 string vsPath = GetEnv("VSINCLUDE", @"C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC");
 932                                 string monoPath = GetEnv("MONOPREFIX", @"C:\Program Files (x86)\Mono");
 933
 934                                 string[] includes = new string[] {winsdkPath + @"\Include\um", winsdkPath + @"\Include\shared", vsPath + @"\include", monoPath + @"\include\mono-2.0", "." };
 935                                 // string[] libs = new string[] { winsdkPath + @"\Lib\winv6.3\um\x86" , vsPath + @"\lib" };
 936                                 var linkLibraries = new string[] {  "kernel32.lib",
 937                                                                                                 "version.lib",
 938                                                                                                 "Ws2_32.lib",
 939                                                                                                 "Mswsock.lib",
 940                                                                                                 "Psapi.lib",
 941                                                                                                 "shell32.lib",
 942                                                                                                 "OleAut32.lib",
 943                                                                                                 "ole32.lib",
 944                                                                                                 "winmm.lib",
 945                                                                                                 "user32.lib",
 946                                                                                                 "libvcruntime.lib",
 947                                                                                                 "advapi32.lib",
 948                                                                                                 "OLDNAMES.lib",
 949                                                                                                 "libucrt.lib" };
 950
 951                                 string glue_obj = "mkbundle_glue.obj";
 952                                 string monoLib;
 953
 954                                 if (static_link)
 955                                         monoLib = LocateFile (monoPath + @"\lib\monosgen-2.0-static.lib");
 956
 957                                 else {
 958                                         Console.WriteLine ("WARNING: Dynamically linking the Mono runtime on Windows is not a tested option.");
 959                                         monoLib = LocateFile (monoPath + @"\lib\monosgen-2.0.lib");
 960                                         LocateFile (monoPath + @"\lib\monosgen-2.0.dll"); // in this case, the .lib is just the import library, and the .dll is also needed
 961                                 }
 962
 963                                 var compilerArgs = new List<string>();
 964                                 compilerArgs.Add("/MT");
 965
 966                                 foreach (string include in includes)
 967                                         compilerArgs.Add(String.Format ("/I {0}", quote (include)));
 968
 969                                 if (!nomain || custom_main != null) {
 970                                         compilerArgs.Add(quote(temp_c));
 971                                         compilerArgs.Add(quote(temp_o));
 972                                         if (custom_main != null)
 973                                                 compilerArgs.Add(quote(custom_main));
 974                                         compilerArgs.Add(quote(monoLib));
 975                                         compilerArgs.Add("/link");
 976                                         compilerArgs.Add("/NODEFAULTLIB");
 977                                         compilerArgs.Add("/SUBSYSTEM:windows");
 978                                         compilerArgs.Add("/ENTRY:mainCRTStartup");
 979                                         compilerArgs.AddRange(linkLibraries);
 980                                         compilerArgs.Add("/out:"+ output);
 981
 982                                         string cl_cmd = String.Format("{0} {1}", compiler, String.Join(" ", compilerArgs.ToArray()));
 983                                         Execute (cl_cmd);
 984                                 }
 985                                 else
 986                                 {
 987                                         // we are just creating a .lib
 988                                         compilerArgs.Add("/c"); // compile only
 989                                         compilerArgs.Add(temp_c);
 990                                         compilerArgs.Add(String.Format("/Fo" + glue_obj)); // .obj output name
 991
 992                                         string cl_cmd = String.Format("{0} {1}", compiler, String.Join(" ", compilerArgs.ToArray()));
 993                                         Execute (cl_cmd);
 994
 995                                         string librarian = GetEnv ("LIB", "lib.exe");
 996                                         var librarianArgs = new List<string> ();
 997                                         librarianArgs.Add (String.Format ("/out:{0}.lib" + output));
 998                                         librarianArgs.Add (temp_o);
 999                                         librarianArgs.Add (glue_obj);
1000                                         librarianArgs.Add (monoLib);
1001                                         string lib_cmd = String.Format("{0} {1}", librarian, String.Join(" ", librarianArgs.ToArray()));
1002                                         Execute (lib_cmd);
1003                                 }
1004                         }
1005                         else
1006                         {
1007                                 string zlib = (compress ? "-lz" : "");
1008                                 string debugging = "-g";
1009                                 string cc = GetEnv("CC", "cc");
1010                                 string cmd = null;
1011
1012                                 if (style == "linux")
1013                                         debugging = "-ggdb";
1014                                 if (static_link)
1015                                 {
1016                                         string smonolib;
1017                                         if (style == "osx")
1018                                                 smonolib = "`pkg-config --variable=libdir mono-2`/libmono-2.0.a ";
1019                                         else
1020                                                 smonolib = "-Wl,-Bstatic -lmono-2.0 -Wl,-Bdynamic ";
1021                                         cmd = String.Format("{4} -o '{2}' -Wall `pkg-config --cflags mono-2` {0} {3} " +
1022                                                 "`pkg-config --libs-only-L mono-2` " + smonolib +
1023                                                 "`pkg-config --libs-only-l mono-2 | sed -e \"s/\\-lmono-2.0 //\"` {1}",
1024                                                 temp_c, temp_o, output, zlib, cc);
1025                                 }
1026                                 else
1027                                 {
1028
1029                                         cmd = String.Format("{4} " + debugging + " -o '{2}' -Wall {0} `pkg-config --cflags --libs mono-2` {3} {1}",
1030                                                 temp_c, temp_o, output, zlib, cc);
1031                                 }
1032                                 Execute (cmd);
1033                         }
1034
1035                         if (!quiet)
1036                                 Console.WriteLine ("Done");
1037                 }
1038         }
1039                 } finally {
1040                         if (!keeptemp){
1041                                 if (object_out == null){
1042                                         File.Delete (temp_o);
1043                                 }
1044                                 if (!compile_only){
1045                                         File.Delete (temp_c);
1046                                 }
1047                                 File.Delete (temp_s);
1048                         }
1049                 }
1050         }
1051
1052         static List<string> LoadAssemblies (List<string> sources)
1053         {
1054                 List<string> assemblies = new List<string> ();
1055                 bool error = false;
1056
1057                 foreach (string name in sources){
1058                         try {
1059                                 Assembly a = LoadAssemblyFile (name);
1060
1061                                 if (a == null){
1062                                         error = true;
1063                                         continue;
1064                                 }
1065
1066                                 assemblies.Add (a.CodeBase);
1067                         } catch (Exception) {
1068                                 if (skip_scan) {
1069                                         if (!quiet)
1070                                                 Console.WriteLine ("File will not be scanned: {0}", name);
1071                                         assemblies.Add (new Uri (new FileInfo (name).FullName).ToString ());
1072                                 } else {
1073                                         throw;
1074                                 }
1075                         }
1076                 }
1077
1078                 if (error) {
1079                         Error ("Couldn't load one or more of the assemblies.");
1080                         Environment.Exit (1);
1081                 }
1082
1083                 return assemblies;
1084         }
1085
1086         static void LoadLocalizedAssemblies (List<string> assemblies)
1087         {
1088                 var other = i18n.Select (x => "I18N." + x + (x.Length > 0 ? "." : "") + "dll");
1089                 string error = null;
1090
1091                 foreach (string name in other) {
1092                         try {
1093                                 Assembly a = LoadAssembly (name);
1094
1095                                 if (a == null) {
1096                                         error = "Failed to load " + name;
1097                                         continue;
1098                                 }
1099
1100                                 assemblies.Add (a.CodeBase);
1101                         } catch (Exception) {
1102                                 if (skip_scan) {
1103                                         if (!quiet)
1104                                                 Console.WriteLine ("File will not be scanned: {0}", name);
1105                                         assemblies.Add (new Uri (new FileInfo (name).FullName).ToString ());
1106                                 } else {
1107                                         throw;
1108                                 }
1109                         }
1110                 }
1111
1112                 if (error != null) {
1113                         Error ("Couldn't load one or more of the i18n assemblies: " + error);
1114                         Environment.Exit (1);
1115                 }
1116         }
1117
1118
1119         static readonly Universe universe = new Universe ();
1120         static readonly Dictionary<string, string> loaded_assemblies = new Dictionary<string, string> ();
1121         static readonly string resourcePathSeparator = (Path.DirectorySeparatorChar == '\\') ? $"\\{Path.DirectorySeparatorChar}" : $"{Path.DirectorySeparatorChar}";
1122
1123         public static string GetAssemblyName (string path)
1124         {
1125                 string name = Path.GetFileName (path);
1126
1127                 // A bit of a hack to support satellite assemblies. They all share the same name but
1128                 // are placed in subdirectories named after the locale they implement. Also, all of
1129                 // them end in .resources.dll, therefore we can use that to detect the circumstances.
1130                 if (name.EndsWith (".resources.dll", StringComparison.OrdinalIgnoreCase)) {
1131                         string dir = Path.GetDirectoryName (path);
1132                         int idx = dir.LastIndexOf (Path.DirectorySeparatorChar);
1133                         if (idx >= 0) {
1134                                 name = dir.Substring (idx + 1) + resourcePathSeparator + name;
1135                                 Console.WriteLine ($"Storing satellite assembly '{path}' with name '{name}'");
1136                         } else if (!quiet)
1137                                 Console.WriteLine ($"Warning: satellite assembly {path} doesn't have locale path prefix, name conflicts possible");
1138                 }
1139
1140                 return name;
1141         }
1142
1143         static bool QueueAssembly (List<string> files, string codebase)
1144         {
1145                 //Console.WriteLine ("CODE BASE IS {0}", codebase);
1146                 if (files.Contains (codebase))
1147                         return true;
1148
1149                 var path = new Uri(codebase).LocalPath;
1150                 var name = GetAssemblyName (path);
1151                 string found;
1152                 if (loaded_assemblies.TryGetValue (name, out found)) {
1153                         Error ("Duplicate assembly name `{0}'. Both `{1}' and `{2}' use same assembly name.", name, path, found);
1154                         return false;
1155                 }
1156
1157                 loaded_assemblies.Add (name, path);
1158
1159                 files.Add (codebase);
1160                 if (!autodeps)
1161                         return true;
1162                 try {
1163                         Assembly a = universe.LoadFile (path);
1164
1165                         foreach (AssemblyName an in a.GetReferencedAssemblies ()) {
1166                                 a = LoadAssembly (an.Name);
1167                                 if (!QueueAssembly (files, a.CodeBase))
1168                                         return false;
1169                         }
1170                 } catch (Exception) {
1171                         if (!skip_scan)
1172                                 throw;
1173                 }
1174
1175                 return true;
1176         }
1177
1178         //
1179         // Loads an assembly from a specific path
1180         //
1181         static Assembly LoadAssemblyFile (string assembly)
1182         {
1183                 Assembly a = null;
1184
1185                 try {
1186                         a = universe.LoadFile (assembly);
1187                 } catch (FileNotFoundException){
1188                         Error ($"Cannot find assembly `{assembly}'");
1189                 } catch (IKVM.Reflection.BadImageFormatException f) {
1190                         if (skip_scan)
1191                                 throw;
1192                         Error ($"Cannot load assembly (bad file format) " + f.Message);
1193                 } catch (FileLoadException f){
1194                         Error ($"Cannot load assembly " + f.Message);
1195                 } catch (ArgumentNullException){
1196                         Error( $"Cannot load assembly (null argument)");
1197                 }
1198                 return a;
1199         }
1200
1201         //
1202         // Loads an assembly from any of the link directories provided
1203         //
1204         static Assembly LoadAssembly (string assembly)
1205         {
1206                 string total_log = "";
1207                 foreach (string dir in link_paths){
1208                         string full_path = Path.Combine (dir, assembly);
1209                         if (!assembly.EndsWith (".dll") && !assembly.EndsWith (".exe"))
1210                                 full_path += ".dll";
1211
1212                         try {
1213                                 var a = universe.LoadFile (full_path);
1214                                 return a;
1215                         } catch (FileNotFoundException ff) {
1216                                 total_log += ff.FusionLog;
1217                                 continue;
1218                         }
1219                 }
1220                 if (!quiet)
1221                         Console.WriteLine ("Log: \n" + total_log);
1222                 return null;
1223         }
1224
1225         static void Error (string msg, params object [] args)
1226         {
1227                 Console.Error.WriteLine ("ERROR: {0}", string.Format (msg, args));
1228                 Environment.Exit (1);
1229         }
1230
1231         static void Help ()
1232         {
1233                 Console.WriteLine ("Usage is: mkbundle [options] assembly1 [assembly2...]\n\n" +
1234                                    "Options:\n" +
1235                                    "    --config F           Bundle system config file `F'\n" +
1236                                    "    --config-dir D       Set MONO_CFG_DIR to `D'\n" +
1237                                    "    --deps               Turns on automatic dependency embedding (default on simple)\n" +
1238                                    "    -L path              Adds `path' to the search path for assemblies\n" +
1239                                    "    --machine-config F   Use the given file as the machine.config for the application.\n" +
1240                                    "    -o out               Specifies output filename\n" +
1241                                    "    --nodeps             Turns off automatic dependency embedding (default on custom)\n" +
1242                                    "    --skip-scan          Skip scanning assemblies that could not be loaded (but still embed them).\n" +
1243                                    "    --i18n ENCODING      none, all or comma separated list of CJK, MidWest, Other, Rare, West.\n" +
1244                                    "    -v                   Verbose output\n" +
1245                                    "    --bundled-header     Do not attempt to include 'mono-config.h'. Define the entry points directly in the generated code\n" +
1246                                    "\n" +
1247                                    "--simple   Simple mode does not require a C toolchain and can cross compile\n" +
1248                                    "    --cross TARGET       Generates a binary for the given TARGET\n"+
1249                                    "    --env KEY=VALUE      Hardcodes an environment variable for the target\n" +
1250                                    "    --fetch-target NAME  Downloads the target SDK from the remote server\n" +
1251                                    "    --library [LIB,]PATH Bundles the specified dynamic library to be used at runtime\n" +
1252                                    "                         LIB is optional shortname for file located at PATH\n" +
1253                                    "    --list-targets       Lists available targets on the remote server\n" +
1254                                    "    --local-targets      Lists locally available targets\n" +
1255                                    "    --options OPTIONS    Embed the specified Mono command line options on target\n" +
1256                                    "    --runtime RUNTIME    Manually specifies the Mono runtime to use\n" +
1257                                    "    --sdk PATH           Use a Mono SDK root location instead of a target\n" +
1258                                    "    --target-server URL  Specified a server to download targets from, default is " + target_server + "\n" +
1259                                    "\n" +
1260                                    "--custom   Builds a custom launcher, options for --custom\n" +
1261                                    "    -c                   Produce stub only, do not compile\n" +
1262                                    "    -oo obj              Specifies output filename for helper object file\n" +
1263                                    "    --dos2unix[=true|false]\n" +
1264                                    "                         When no value provided, or when `true` specified\n" +
1265                                    "                         `dos2unix` will be invoked to convert paths on Windows.\n" +
1266                                    "                         When `--dos2unix=false` used, dos2unix is NEVER used.\n" +
1267                                    "    --keeptemp           Keeps the temporary files\n" +
1268                                    "    --static             Statically link to mono libs\n" +
1269                                    "    --nomain             Don't include a main() function, for libraries\n" +
1270                                    "    --custom-main C      Link the specified compilation unit (.c or .obj) with entry point/init code\n" +
1271                                    "    -z                   Compress the assemblies before embedding.\n" +
1272                                    "    --static-ctor ctor   Add a constructor call to the supplied function.\n" +
1273                                    "                         You need zlib development headers and libraries.\n");
1274         }
1275
1276         [DllImport ("libc")]
1277         static extern int system (string s);
1278         [DllImport ("libc")]
1279         static extern int uname (IntPtr buf);
1280
1281         static void DetectOS ()
1282         {
1283                 if (!IsUnix) {
1284                         os_message = "OS is: Windows";
1285                         style = "windows";
1286                         return;
1287                 }
1288
1289                 IntPtr buf = Marshal.AllocHGlobal (8192);
1290                 if (uname (buf) != 0){
1291                         os_message = "Warning: Unable to detect OS";
1292                         Marshal.FreeHGlobal (buf);
1293                         return;
1294                 }
1295                 string os = Marshal.PtrToStringAnsi (buf);
1296                 os_message = "OS is: " + os;
1297                 if (os == "Darwin")
1298                         style = "osx";
1299
1300                 Marshal.FreeHGlobal (buf);
1301         }
1302
1303         static bool IsUnix {
1304                 get {
1305                         int p = (int) Environment.OSVersion.Platform;
1306                         return ((p == 4) || (p == 128) || (p == 6));
1307                 }
1308         }
1309
1310         static void Execute (string cmdLine)
1311         {
1312                 if (IsUnix) {
1313                         if (!quiet)
1314                                 Console.WriteLine ("[execute cmd]: " + cmdLine);
1315                         int ret = system (cmdLine);
1316                         if (ret != 0)
1317                         {
1318                                 Error(String.Format("[Fail] {0}", ret));
1319                         }
1320                         return;
1321                 }
1322
1323                 // on Windows, we have to pipe the output of a
1324                 // `cmd` interpolation to dos2unix, because the shell does not
1325                 // strip the CRLFs generated by the native pkg-config distributed
1326                 // with Mono.
1327                 //
1328                 // But if it's *not* on cygwin, just skip it.
1329
1330                 // check if dos2unix is applicable.
1331                 if (use_dos2unix == true)
1332                         try {
1333                         var info = new ProcessStartInfo ("dos2unix");
1334                         info.CreateNoWindow = true;
1335                         info.RedirectStandardInput = true;
1336                         info.UseShellExecute = false;
1337                         var dos2unix = Process.Start (info);
1338                         dos2unix.StandardInput.WriteLine ("aaa");
1339                         dos2unix.StandardInput.WriteLine ("\u0004");
1340                         dos2unix.StandardInput.Close ();
1341                         dos2unix.WaitForExit ();
1342                         if (dos2unix.ExitCode == 0)
1343                                 use_dos2unix = true;
1344                 } catch {
1345                         Console.WriteLine("Warning: dos2unix not found");
1346                         use_dos2unix = false;
1347                 }
1348
1349                 if (use_dos2unix == null)
1350                         use_dos2unix = false;
1351
1352                 ProcessStartInfo psi = new ProcessStartInfo();
1353                 psi.UseShellExecute = false;
1354
1355                 // if there is no dos2unix, just run cmd /c.
1356                 if (use_dos2unix == false)
1357                 {
1358                         psi.FileName = "cmd";
1359                         psi.Arguments = String.Format("/c \"{0}\"", cmdLine);
1360                 }
1361                 else
1362                 {
1363                         psi.FileName = "sh";
1364                         StringBuilder b = new StringBuilder();
1365                         int count = 0;
1366                         for (int i = 0; i < cmdLine.Length; i++)
1367                         {
1368                                 if (cmdLine[i] == '`')
1369                                 {
1370                                         if (count % 2 != 0)
1371                                         {
1372                                                 b.Append("|dos2unix");
1373                                         }
1374                                         count++;
1375                                 }
1376                                 b.Append(cmdLine[i]);
1377                         }
1378                         cmdLine = b.ToString();
1379                         psi.Arguments = String.Format("-c \"{0}\"", cmdLine);
1380                 }
1381
1382                 if (!quiet)
1383                         Console.WriteLine(cmdLine);
1384                 using (Process p = Process.Start (psi)) {
1385                         p.WaitForExit ();
1386                         int ret = p.ExitCode;
1387                         if (ret != 0){
1388                                 Error ("[Fail] {0}", ret);
1389                         }
1390                 }
1391         }
1392
1393         static string GetEnv(string name, string defaultValue)
1394         {
1395                 string val = Environment.GetEnvironmentVariable(name);
1396                 if (val != null)
1397                 {
1398                         if (!quiet)
1399                                 Console.WriteLine("{0} = {1}", name, val);
1400                 }
1401                 else
1402                 {
1403                         val = defaultValue;
1404                         if (!quiet)
1405                                 Console.WriteLine("{0} = {1} (default)", name, val);
1406                 }
1407                 return val;
1408         }
1409
1410         static string LocateFile(string default_path)
1411         {
1412                 var override_path = Path.Combine(Directory.GetCurrentDirectory(), Path.GetFileName(default_path));
1413                 if (File.Exists(override_path))
1414                         return override_path;
1415                 else if (File.Exists(default_path))
1416                         return default_path;
1417                 else
1418                         throw new FileNotFoundException(default_path);
1419         }
1420 }