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