File: gnatcoll-io-native.adb

package info (click to toggle)
libgnatcoll 18-4
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, buster, sid
  • size: 5,068 kB
  • sloc: ada: 40,393; python: 354; ansic: 310; makefile: 245; sh: 31
file content (821 lines) | stat: -rw-r--r-- 23,337 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
------------------------------------------------------------------------------
--                             G N A T C O L L                              --
--                                                                          --
--                     Copyright (C) 2009-2017, AdaCore                     --
--                                                                          --
-- This library is free software;  you can redistribute it and/or modify it --
-- under terms of the  GNU General Public License  as published by the Free --
-- Software  Foundation;  either version 3,  or (at your  option) any later --
-- version. This library is distributed in the hope that it will be useful, --
-- but WITHOUT ANY WARRANTY;  without even the implied warranty of MERCHAN- --
-- TABILITY or FITNESS FOR A PARTICULAR PURPOSE.                            --
--                                                                          --
--                                                                          --
--                                                                          --
--                                                                          --
--                                                                          --
-- You should have received a copy of the GNU General Public License and    --
-- a copy of the GCC Runtime Library Exception along with this program;     --
-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
-- <http://www.gnu.org/licenses/>.                                          --
--                                                                          --
------------------------------------------------------------------------------

with System;
with Ada.Unchecked_Deallocation;
with Ada.Directories;

with Ada.Calendar.Formatting;  use Ada.Calendar;
with Ada.Calendar.Time_Zones;  use Ada.Calendar.Time_Zones;
with GNAT.Directory_Operations; use GNAT.Directory_Operations;
with GNAT.OS_Lib;
with GNAT.Strings;              use GNAT.Strings;
with Interfaces.C;              use Interfaces.C;
with Interfaces.C.Strings;      use Interfaces.C.Strings;

with GNATCOLL.Mmap;
with GNATCOLL.Path;             use GNATCOLL.Path;
with GNATCOLL.Utils;            use GNATCOLL.Utils;

package body GNATCOLL.IO.Native is

   package body Codec is separate;
   --  Separate implementation for Windows and Unix

   ------------
   -- Create --
   ------------

   function Create (Path : FS_String) return File_Access is
   begin
      return new Native_File_Record'
        (Ref_Count  => 1,
         Full       => new FS_String'(From_Unix (Local_FS, Path)),
         Normalized => null,
         Normalized_And_Resolved => null,
         Kind       => Unknown);
   end Create;

   ------------------------
   -- Dispatching_Create --
   ------------------------

   function Dispatching_Create
     (Ref       : not null access Native_File_Record;
      Full_Path : FS_String) return File_Access
   is
      pragma Unreferenced (Ref);
   begin
      return Create (Full_Path);
   end Dispatching_Create;

   -------------
   -- To_UTF8 --
   -------------

   function To_UTF8
     (Ref  : not null access Native_File_Record;
      Path : FS_String) return String
   is
      pragma Unreferenced (Ref);
   begin
      return Codec.To_UTF8 (Path);
   end To_UTF8;

   ---------------
   -- From_UTF8 --
   ---------------

   function From_UTF8
     (Ref  : not null access Native_File_Record;
      Path : String) return FS_String
   is
      pragma Unreferenced (Ref);
   begin
      return Codec.From_UTF8 (Path);
   end From_UTF8;

   -----------------
   -- Current_Dir --
   -----------------

   function Current_Dir return File_Access is
      D   : constant GNAT.Directory_Operations.Dir_Name_Str :=
              GNAT.Directory_Operations.Get_Current_Dir;
      Ret : File_Access;
   begin
      Ret := Create (FS_String (D));
      return Ret;
   end Current_Dir;

   --------------
   -- Home_Dir --
   --------------

   function Home_Dir return File_Access is
      HOME : GNAT.Strings.String_Access := GNAT.OS_Lib.Getenv ("HOME");
      Tmp  : GNAT.Strings.String_Access;
   begin
      if HOME.all = "" then
         Free (HOME);
         HOME := GNAT.OS_Lib.Getenv ("USERPROFILE");

         if HOME.all = "" then
            Free (HOME);
            return Create (Get_Root (Local_FS, ""));
         end if;
      end if;

      if HOME'Length > 2
        and then HOME (HOME'First) = '%'
        and then HOME (HOME'Last) = '%'
      then
         --  Some Windows systems set %HOME% to another env variable, e.g.
         --  %USERPROFILE%

         Tmp := HOME;
         HOME := GNAT.OS_Lib.Getenv (Tmp (Tmp'First + 1 .. Tmp'Last - 1));
         Free (Tmp);
      end if;

      declare
         --  ??? Convert from display charset to filesystem charset ?
         Result : constant FS_String :=
                    From_Unix (Local_FS, FS_String (HOME.all));
      begin
         Free (HOME);
         return Create (Result);
      end;
   end Home_Dir;

   -----------------------
   -- Get_Tmp_Directory --
   -----------------------

   function Get_Tmp_Directory return File_Access is

      function Internal return chars_ptr;
      pragma Import (C, Internal, "__gnatcoll_get_tmp_dir");

      procedure c_free (C : chars_ptr);
      pragma Import (C, c_free, "free");

      C_Str : constant chars_ptr := Internal;
      Str   : constant FS_String :=
                FS_String
                  (GNAT.Directory_Operations.Format_Pathname
                     (To_Ada (Value (C_Str))));
   begin
      --  Since the allocation was done in C (strdup), we use directly the
      --  C version of free. This is probably more reliable, and more
      --  importantly, this works correctly with our own version of
      --  s-memory.adb (when GPS_MEMORY_MONITOR=1)
      c_free (C_Str);
      return Create (Ensure_Directory (Local_FS, Str));
   end Get_Tmp_Directory;

   ------------------------
   -- Get_Logical_Drives --
   ------------------------

   function Get_Logical_Drives return File_Array is

      function Internal
        (Buffer : System.Address;
         Length : Integer) return Integer;
      pragma Import (C, Internal, "__gnatcoll_get_logical_drive_strings");
      Len    : Integer;
      Last   : Natural;
      N      : Natural;

   begin
      --  First get the size of the buffer needed to contain the drives
      Len := Internal (System.Null_Address, 0);

      if Len = 0 then
         return (1 .. 0 => <>);
      end if;

      declare
         --  Use the returned length for creating the buffer. Do not forget
         --  to add room for the trailing \n
         Buffer : aliased FS_String (1 .. Len + 1);
      begin
         Len := Internal (Buffer'Address, Len);

         N := 0;
         for J in 1 .. Len loop
            if Buffer (J) = ASCII.NUL then
               N := N + 1;
            end if;
         end loop;

         declare
            Ret : File_Array (1 .. N);
         begin
            N := 1;
            Last := Buffer'First;

            for J in 1 .. Len loop
               if Buffer (J) = ASCII.NUL then
                  Ret (N) := Create
                    (GNATCOLL.Path.Path
                       (Local_FS, Buffer (Last .. Last), "", ""));
                  N := N + 1;
                  Last := J + 1;
               end if;
            end loop;

            return Ret;
         end;
      end;
   end Get_Logical_Drives;

   --------------
   -- Is_Local --
   --------------

   function Is_Local (File : Native_File_Record) return Boolean is
      pragma Unreferenced (File);
   begin
      return True;
   end Is_Local;

   ------------
   -- Get_FS --
   ------------

   function Get_FS
     (File : not null access Native_File_Record) return FS_Type
   is
      pragma Unreferenced (File);
   begin
      return Local_FS;
   end Get_FS;

   ----------------------
   -- Resolve_Symlinks --
   ----------------------

   procedure Resolve_Symlinks
     (File : not null access Native_File_Record)
   is
      Is_Dir_Path : Boolean;
   begin
      if File.Normalized_And_Resolved = null then
         Is_Dir_Path := Path.Is_Dir_Name (File.Get_FS, File.Full.all);

         declare
            --  We have to pass "" for the directory, in case File.Full is a
            --  relative path name. That might be surprising to the application
            --  since the current directory might have changed since File was
            --  created.
            Norm : constant String :=
                     GNAT.OS_Lib.Normalize_Pathname
                       (String (File.Full.all),
                        Directory     => "",
                        Resolve_Links => True);
         begin
            --  Normalize_Pathname sometimes removes the trailing dir separator
            --  We need to take care of it then.
            if not Is_Dir_Path
              or else Norm (Norm'Last) = GNAT.OS_Lib.Directory_Separator
            then
               if File.Normalized /= null
                 and then FS_String (Norm) = File.Normalized.all
               then
                  File.Normalized_And_Resolved := File.Normalized;
               else
                  File.Normalized_And_Resolved :=
                    new FS_String'(FS_String (Norm));
               end if;

            else
               if File.Normalized /= null
                 and then FS_String (Norm) & GNAT.OS_Lib.Directory_Separator =
                    File.Normalized.all
               then
                  File.Normalized_And_Resolved := File.Normalized;
               else
                  File.Normalized_And_Resolved := new FS_String'
                    (FS_String (Norm) & GNAT.OS_Lib.Directory_Separator);
               end if;
            end if;
         end;
      end if;
   end Resolve_Symlinks;

   ---------------------
   -- Is_Regular_File --
   ---------------------

   function Is_Regular_File
     (File : not null access Native_File_Record) return Boolean is
   begin
      return GNAT.OS_Lib.Is_Regular_File (String (File.Full.all));
   end Is_Regular_File;

   ----------
   -- Size --
   ----------

   function Size
     (File : not null access Native_File_Record) return Long_Integer
   is
      Fd : constant GNAT.OS_Lib.File_Descriptor := GNAT.OS_Lib.Open_Read
        (String (File.Full.all), Fmode => GNAT.OS_Lib.Binary);
      pragma Warnings (Off);
      Result : constant Long_Integer :=
        Long_Integer (GNAT.OS_Lib.File_Length (Fd));
      pragma Warnings (On);
   begin
      GNAT.OS_Lib.Close (Fd);
      return Result;
   end Size;

   ------------------
   -- Is_Directory --
   ------------------

   function Is_Directory
     (File : not null access Native_File_Record) return Boolean is
   begin
      if GNAT.OS_Lib.Directory_Separator = '\'
        and then File.Full (File.Full'First .. File.Full'First + 1) = "\\"
      then
         --  There is an issue with (at least) GNAT 6.2 when Is_Directory
         --  returns False for Windows network paths (e.g. \\host\shared\).
         --  In this case, we try to open the directory and see if it works.

         declare
            Dir : GNAT.Directory_Operations.Dir_Type;
         begin
            GNAT.Directory_Operations.Open (Dir, String (File.Full.all));
            GNAT.Directory_Operations.Close (Dir);

            return True;

         exception
            when GNAT.Directory_Operations.Directory_Error =>
               return False;
         end;

      else
         return GNAT.OS_Lib.Is_Directory (String (File.Full.all));
      end if;
   end Is_Directory;

   ----------------------
   -- Is_Symbolic_Link --
   ----------------------

   function Is_Symbolic_Link
     (File : not null access Native_File_Record) return Boolean is
   begin
      return GNAT.OS_Lib.Is_Symbolic_Link (String (File.Full.all));
   end Is_Symbolic_Link;

   ---------------------
   -- File_Time_Stamp --
   ---------------------

   TZ : constant Time_Offset := UTC_Time_Offset;
   --  Time zone cache, assuming that the OS will not change time zones while
   --  this partition is running.

   function File_Time_Stamp
     (File : not null access Native_File_Record) return Ada.Calendar.Time
   is
      T      : constant GNAT.OS_Lib.OS_Time :=
        GNAT.OS_Lib.File_Time_Stamp (String (File.Full.all));
      Year   : GNAT.OS_Lib.Year_Type;
      Month  : GNAT.OS_Lib.Month_Type;
      Day    : GNAT.OS_Lib.Day_Type;
      Hour   : GNAT.OS_Lib.Hour_Type;
      Minute : GNAT.OS_Lib.Minute_Type;
      Second : GNAT.OS_Lib.Second_Type;

      use type GNAT.OS_Lib.OS_Time;
   begin
      if T = GNAT.OS_Lib.Invalid_Time then
         return GNATCOLL.Utils.No_Time;
      end if;

      GNAT.OS_Lib.GM_Split (T, Year, Month, Day, Hour, Minute, Second);

      return Ada.Calendar.Formatting.Time_Of
        (Year       => Year_Number (Year),
         Month      => Month_Number (Month),
         Day        => Day_Number (Day),
         Hour       => Formatting.Hour_Number (Hour),
         Minute     => Formatting.Minute_Number (Minute),
         Second     => Formatting.Second_Number (Second),
         Sub_Second => 0.0,
         Time_Zone  => TZ);
   end File_Time_Stamp;

   -----------------
   -- Is_Readable --
   -----------------

   function Is_Readable
     (File : not null access Native_File_Record) return Boolean is
   begin
      return GNAT.OS_Lib.Is_Readable_File (String (File.Full.all));
   end Is_Readable;

   -----------------
   -- Is_Writable --
   -----------------

   function Is_Writable
     (File : not null access Native_File_Record) return Boolean is
   begin
      return GNAT.OS_Lib.Is_Writable_File (String (File.Full.all));
   end Is_Writable;

   ------------------
   -- Set_Writable --
   ------------------

   procedure Set_Writable
     (File  : not null access Native_File_Record;
      State : Boolean)
   is
   begin
      if State then
         GNAT.OS_Lib.Set_Writable
           (String (File.Full.all));
      else
         GNAT.OS_Lib.Set_Non_Writable
           (String (File.Full.all));
      end if;
   end Set_Writable;

   ------------------
   -- Set_Readable --
   ------------------

   procedure Set_Readable
     (File  : not null access Native_File_Record;
      State : Boolean)
   is
   begin
      if State then
         GNAT.OS_Lib.Set_Readable
           (String (File.Full.all));
      else
         GNAT.OS_Lib.Set_Non_Readable
           (String (File.Full.all));
      end if;
   end Set_Readable;

   ------------
   -- Rename --
   ------------

   procedure Rename
     (From    : not null access Native_File_Record;
      Dest    : not null access Native_File_Record;
      Success : out Boolean)
   is
   begin
      GNAT.OS_Lib.Rename_File
        (String (From.Full.all), String (Dest.Full.all), Success);

   exception
      when others =>
         Success := False;
   end Rename;

   ----------
   -- Copy --
   ----------

   procedure Copy
     (From    : not null access Native_File_Record;
      Dest    : FS_String;
      Success : out Boolean)
   is
   begin
      GNAT.OS_Lib.Copy_File
        (String (From.Full.all), String (Dest), Success,
         Mode => GNAT.OS_Lib.Overwrite, Preserve => GNAT.OS_Lib.Full);

   exception
      when others =>
         Success := False;
   end Copy;

   ------------
   -- Delete --
   ------------

   procedure Delete
     (File    : not null access Native_File_Record;
      Success : out Boolean)
   is
   begin
      GNAT.OS_Lib.Delete_File (String (File.Full.all), Success);
   end Delete;

   ---------------------
   -- Read_Whole_File --
   ---------------------

   function Read_Whole_File
     (File : not null access Native_File_Record)
      return GNAT.Strings.String_Access
   is
   begin
      return GNATCOLL.Mmap.Read_Whole_File (String (File.Full.all));

   exception
      when others =>
         return null;
   end Read_Whole_File;

   ---------------------
   -- Read_Whole_File --
   ---------------------

   function Read_Whole_File
     (File : not null access Native_File_Record)
      return GNATCOLL.Strings.XString
   is
   begin
      return GNATCOLL.Mmap.Read_Whole_File (String (File.Full.all));

   exception
      when others =>
         return GNATCOLL.Strings.Null_XString;
   end Read_Whole_File;

   ----------------
   -- Open_Write --
   ----------------

   procedure Open_Write
     (File   : not null access Native_File_Record;
      Append : Boolean := False;
      FD     : out GNAT.OS_Lib.File_Descriptor)
   is
   begin
      if Append then
         FD := GNAT.OS_Lib.Open_Read_Write
           (String (File.Full.all),
            Fmode => GNAT.OS_Lib.Binary);
         GNAT.OS_Lib.Lseek
           (FD, 0, GNAT.OS_Lib.Seek_End);
      else
         FD := GNAT.OS_Lib.Create_File
           (String (File.Full.all),
            Fmode => GNAT.OS_Lib.Binary);
      end if;

   exception
      when others =>
         FD := GNAT.OS_Lib.Invalid_FD;
   end Open_Write;

   -----------
   -- Close --
   -----------

   procedure Close
     (File    : not null access Native_File_Record;
      FD      : GNAT.OS_Lib.File_Descriptor;
      Success : out Boolean)
   is
      pragma Unreferenced (File);
      use type GNAT.OS_Lib.File_Descriptor;
   begin
      if FD /= GNAT.OS_Lib.Invalid_FD then
         GNAT.OS_Lib.Close (FD);
         Success := True;
      else
         Success := False;
      end if;
   end Close;

   ----------------
   -- Change_Dir --
   ----------------

   function Change_Dir
     (Dir : not null access Native_File_Record)
      return Boolean
   is
   begin
      GNAT.Directory_Operations.Change_Dir (String (Dir.Full.all));
      return True;

   exception
      when others =>
         return False;
   end Change_Dir;

   --------------
   -- Read_Dir --
   --------------

   function Read_Dir
     (Dir        : not null access Native_File_Record;
      Dirs_Only  : Boolean := False;
      Files_Only : Boolean := False) return GNAT.Strings.String_List
   is
      Name : constant String :=
               String (Ensure_Directory (Local_FS, Dir.Full.all));
      D    : GNAT.Directory_Operations.Dir_Type;
      Item : String (1 .. 1024);
      Last : Natural;
      Ret  : GNAT.Strings.String_List_Access;
      Tmp  : GNAT.Strings.String_List_Access;
      N    : Natural := 0;

      procedure Unchecked_Free is new Ada.Unchecked_Deallocation
        (GNAT.Strings.String_List, GNAT.Strings.String_List_Access);

   begin
      GNAT.Directory_Operations.Open (D, String (Dir.Full.all));

      loop
         GNAT.Directory_Operations.Read (D, Item, Last);
         exit when Last = 0;

         if Item (1 .. Last) /= "."
           and then Item (1 .. Last) /= ".."
           and then
             (not Dirs_Only
              or else
                GNAT.OS_Lib.Is_Directory (Name & Item (1 .. Last)))
           and then
             (not Files_Only
              or else
                GNAT.OS_Lib.Is_Regular_File (Name & Item (1 .. Last)))
         then
            if Ret = null then
               Ret := new GNAT.Strings.String_List (1 .. 10);

            elsif N = Ret'Last then
               Tmp := new GNAT.Strings.String_List (1 .. Ret'Length * 2);
               Tmp (Ret'Range) := Ret.all;
               Unchecked_Free (Ret);
               Ret := Tmp;
            end if;

            N := N + 1;
            Ret (N) := new String'(Item (1 .. Last));
         end if;
      end loop;

      GNAT.Directory_Operations.Close (D);

      if N = 0 then
         return (1 .. 0 => <>);
      end if;

      declare
         List : constant GNAT.Strings.String_List := Ret (1 .. N);
      begin
         Unchecked_Free (Ret);
         return List;
      end;
   end Read_Dir;

   --------------
   -- Make_Dir --
   --------------

   function Make_Dir
     (Dir       : not null access Native_File_Record;
      Recursive : Boolean) return Boolean is
   begin
      if Recursive then
         Ada.Directories.Create_Path (String (Dir.Full.all));
      else
         Ada.Directories.Create_Directory (String (Dir.Full.all));
      end if;

      return True;

   exception
      when GNAT.Directory_Operations.Directory_Error =>
         return False;
   end Make_Dir;

   ----------------
   -- Remove_Dir --
   ----------------

   procedure Remove_Dir
     (Dir       : not null access Native_File_Record;
      Recursive : Boolean;
      Success   : out Boolean)
   is
   begin
      GNAT.Directory_Operations.Remove_Dir (String (Dir.Full.all), Recursive);
      Success := True;

   exception
      when GNAT.Directory_Operations.Directory_Error =>
         Success := False;
   end Remove_Dir;

   --------------
   -- Copy_Dir --
   --------------

   procedure Copy_Dir
     (From    : not null access Native_File_Record;
      Dest    : FS_String;
      Success : out Boolean)
   is
   begin
      if not Is_Directory (From) then
         Success := False;
         return;
      end if;

      if not GNAT.OS_Lib.Is_Directory (String (Dest)) then
         begin
            GNAT.Directory_Operations.Make_Dir (String (Dest));
         exception
            when others =>
               Success := False;
               return;
         end;
      end if;

      declare
         Files : GNAT.Strings.String_List := Read_Dir (From);

      begin
         Success := True;

         for F in Files'Range loop
            declare
               Tmp_From : File_Access :=
                            Create
                              (GNATCOLL.Path.Path
                                 (Local_FS,
                                  "",
                                  From.Full.all,
                                  FS_String (Files (F).all)));
               To_Str   : constant FS_String :=
                            GNATCOLL.Path.Path
                              (Local_FS,
                               "",
                               Dest,
                               FS_String (Files (F).all));
            begin

               if Is_Directory (Tmp_From) then
                  Copy_Dir (Tmp_From, To_Str, Success);
                  Unref (Tmp_From);

                  exit when not Success;

               else
                  Copy (Tmp_From, To_Str, Success);
                  Unref (Tmp_From);

                  exit when not Success;

               end if;
            end;

            GNAT.Strings.Free (Files (F));
         end loop;

      exception
         when others =>
            for J in Files'Range loop
               GNAT.Strings.Free (Files (J));
            end loop;

            Success := False;
      end;

   exception
      when others =>
         Success := False;
   end Copy_Dir;

   ---------------------------
   -- Copy_File_Permissions --
   ---------------------------

   overriding procedure Copy_File_Permissions
     (From, To : not null access Native_File_Record;
      Success  : out Boolean) is
   begin
      GNAT.OS_Lib.Copy_File_Attributes
          (From             => String (From.Full.all),
           To               => String (To.Full.all),
           Success          => Success,
           Copy_Timestamp   => False,
           Copy_Permissions => True);
   end Copy_File_Permissions;

end GNATCOLL.IO.Native;