This file is indexed.

/usr/share/ada/adainclude/gnatcoll/gnatcoll-scripts-projects.adb is in libgnatcoll16.1.0-dev 17.0.2017-3.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  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
------------------------------------------------------------------------------
--                             G N A T C O L L                              --
--                                                                          --
--                     Copyright (C) 2003-2017, 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 Ada.Characters.Handling; use Ada.Characters.Handling;

with GNAT.Strings;
with GNAT.OS_Lib;             use GNAT.OS_Lib;

with GNATCOLL.Projects;       use GNATCOLL.Projects;
with GNATCOLL.VFS;            use GNATCOLL.VFS;
with GNATCOLL.Utils;          use GNATCOLL.Utils;
with GNATCOLL.Scripts.Files;

package body GNATCOLL.Scripts.Projects is

   type Project_Properties_Record is new Instance_Property_Record with record
      Project : Project_Type;
   end record;

   Project_Class_Name : constant String := "Project";

   Name_Cst           : aliased constant String := "name";
   Recursive_Cst      : aliased constant String := "recursive";
   Attribute_Cst      : aliased constant String := "attribute";
   Package_Cst        : aliased constant String := "package";
   Prefix_Cst         : aliased constant String := "prefix";
   Index_Cst          : aliased constant String := "index";

   Sources_Cmd_Parameters : constant GNATCOLL.Scripts.Cst_Argument_List :=
     (1 => Recursive_Cst'Access);
   Source_Dirs_Cmd_Parameters : constant GNATCOLL.Scripts.Cst_Argument_List :=
     (1 => Recursive_Cst'Access);
   Languages_Cmd_Parameters : constant GNATCOLL.Scripts.Cst_Argument_List :=
     (1 => Recursive_Cst'Access);

   Project_Cmd_Parameters   : constant Cst_Argument_List :=
                                (1 => Name_Cst'Access);
   Get_Attributes_Parameters : constant Cst_Argument_List :=
     (1 => Attribute_Cst'Unchecked_Access,
      2 => Package_Cst'Unchecked_Access,
      3 => Index_Cst'Unchecked_Access);

   Scenar_Var_Parameters    : constant Cst_Argument_List :=
                                (1 => Prefix_Cst'Access);

   type Project_Tree_Retriever_Access is
     access all Project_Tree_Retriever'Class;

   Retriever : Project_Tree_Retriever_Access;

   procedure Project_Command_Handler
     (Data : in out Callback_Data'Class; Command : String);

   procedure Project_Queries
     (Data : in out Callback_Data'Class; Command : String);

   procedure Set_Data
     (Instance : Class_Instance; Project  : Project_Type);

   function Scenario_Variables_Cmd_Line (Prefix : String) return String;
   --  Return the command line to use to set up the scenario variables when
   --  calling an external tool that handles project files.
   --  For a Makefile, set Prefix to "", for gnatmake set prefix to "-X".
   --  This function returns a concatenation of Prefix & "VAR=VALUE".

   --------------------
   -- Create_Project --
   --------------------

   function Create_Project
     (Script  : access Scripting_Language_Record'Class;
      Project : GNATCOLL.Projects.Project_Type)
      return Class_Instance
   is
      Instance : Class_Instance := No_Class_Instance;
   begin
      if Project /= No_Project then
         Instance := New_Instance
           (Script, New_Class (Get_Repository (Script), Project_Class_Name));
         Set_Data (Instance, Project);
      end if;

      return Instance;
   end Create_Project;

   --------------
   -- Get_Data --
   --------------

   function Get_Data
     (Data : Callback_Data'Class;
      N : Positive)
      return GNATCOLL.Projects.Project_Type
   is
      Class : constant Class_Type := Get_Project_Class (Get_Repository (Data));
      Inst  : constant Class_Instance :=
        Nth_Arg (Data, N, Class, Allow_Null => True);
      Value : Instance_Property;

   begin
      if Inst = No_Class_Instance then
         return No_Project;
      end if;

      Value := Get_Data (Inst, Project_Class_Name);
      if Value = null then
         return No_Project;
      else
         return Project_Properties_Record (Value.all).Project;
      end if;
   end Get_Data;

   -----------------------
   -- Get_Project_Class --
   -----------------------

   function Get_Project_Class
     (Repo : access Scripts_Repository_Record'Class)
      return Class_Type is
   begin
      return New_Class (Repo, Project_Class_Name);
   end Get_Project_Class;

   -----------------------------
   -- Project_Command_Handler --
   -----------------------------

   procedure Project_Command_Handler
     (Data : in out Callback_Data'Class; Command : String)
   is
      Repo   : constant Scripts_Repository := Get_Repository (Data);
      Instance : Class_Instance;
      Project  : Project_Type;
   begin
      if Command = Constructor_Method then
         Name_Parameters (Data, Project_Cmd_Parameters);
         Project  := Project_Tree.Project_From_Name
           (Nth_Arg (Data, 2));

         if Project = No_Project then
            Set_Error_Msg (Data, "No such project: " & Nth_Arg (Data, 2));
         else
            Instance := Nth_Arg (Data, 1, Get_Project_Class (Repo));
            Set_Data (Instance, Project);
         end if;

      elsif Command = "root" then
         Set_Return_Value
           (Data, Create_Project (Get_Script (Data),
                                  Project_Tree.Root_Project));

      elsif Command = "name" then
         Project := Get_Data (Data, 1);
         Set_Return_Value (Data, Project.Name);

      elsif Command = "file" then
         Project := Get_Data (Data, 1);
         Set_Return_Value
           (Data,
            GNATCOLL.Scripts.Files.Create_File
              (Get_Script (Data), Project_Path (Project)));

      elsif Command = "ancestor_deps" then
         declare
            Iter : Project_Iterator;
            P    : Project_Type;
         begin
            Project := Get_Data (Data, 1);
            Set_Return_Value_As_List (Data);
            Iter := Find_All_Projects_Importing
              (Project, Include_Self => True);

            loop
               P := Current (Iter);
               exit when P = No_Project;
               Set_Return_Value
                 (Data, Create_Project (Get_Script (Data), P));
               Next (Iter);
            end loop;
         end;

      elsif Command = "dependencies" then
         Name_Parameters (Data, (1 => Recursive_Cst'Access));
         declare
            Recursive : constant Boolean := Nth_Arg (Data, 2, False);
            Iter : Project_Iterator;
            P    : Project_Type;
         begin
            Project := Get_Data (Data, 1);
            Set_Return_Value_As_List (Data);
            Iter := Start
              (Project, Recursive => True, Direct_Only => not Recursive);

            loop
               P := Current (Iter);
               exit when P = No_Project;
               Set_Return_Value
                 (Data, Create_Project (Get_Script (Data), P));
               Next (Iter);
            end loop;
         end;

      elsif Command = "get_attribute_as_list" then
         Name_Parameters (Data, Get_Attributes_Parameters);
         declare
            Project : constant Project_Type := Get_Data (Data, 1);
            Attr    : constant String := Nth_Arg (Data, 2);
            Pkg     : constant String := Nth_Arg (Data, 3, "");
            Index   : constant String := Nth_Arg (Data, 4, "");
            List    : String_List_Access := Project.Attribute_Value
                    (Attribute_Pkg_List'(Build (Pkg, Attr)), Index);
            Value   : constant String := Project.Attribute_Value
                   (Attribute_Pkg_String'(Build (Pkg, Attr)),
                   Default => "", Index => Index, Use_Extended => True);
         begin
            Set_Return_Value_As_List (Data);

            if List = null and then Value /= "" then
               Set_Return_Value (Data, Value);
            elsif List /= null then
               for L in List'Range loop
                  Set_Return_Value (Data, List (L).all);
               end loop;
            end if;

            Free (List);
         end;

      elsif Command = "get_attribute_as_string" then
         Name_Parameters (Data, Get_Attributes_Parameters);
         declare
            Project : constant Project_Type := Get_Data (Data, 1);
            Attr    : constant String := Nth_Arg (Data, 2);
            Pkg     : constant String := Nth_Arg (Data, 3, "");
            Index   : constant String := Nth_Arg (Data, 4, "");
            Value   : constant String := Project.Attribute_Value
                   (Attribute_Pkg_String'(Build (Pkg, Attr)),
                   Default => "", Index => Index, Use_Extended => True);
         begin
            if Value = "" then
               declare
                  Result : Unbounded_String;
                  List   : String_List_Access := Project.Attribute_Value
                    (Attribute_Pkg_List'(Build (Pkg, Attr)), Index);
               begin
                  if List /= null then
                     for L in List'Range loop
                        Append (Result, List (L).all);

                        if L /= List'Last then
                           Append (Result, " ");
                        end if;
                     end loop;

                     Free (List);
                  end if;

                  Set_Return_Value (Data, To_String (Result));
               end;
            else
               Set_Return_Value (Data, Value);
            end if;
         end;

      elsif Command = "scenario_variables" then
         declare
            Vars : constant Scenario_Variable_Array :=
              Project_Tree.Scenario_Variables;
         begin
            for V in Vars'Range loop
               Set_Return_Value (Data, Value (Vars (V)));
               Set_Return_Value_Key
                 (Data, External_Name (Vars (V)));
            end loop;
         end;

      elsif Command = "scenario_variables_cmd_line" then
         Name_Parameters (Data, Scenar_Var_Parameters);
         declare
            Prefix : constant String := Nth_Arg (Data, 1, "");
         begin
            Set_Return_Value (Data, Scenario_Variables_Cmd_Line (Prefix));
         end;

      elsif Command = "scenario_variables_values" then
         declare
            Tree : constant Project_Tree_Access := Project_Tree;
            Vars : constant Scenario_Variable_Array := Tree.Scenario_Variables;
         begin
            for V in Vars'Range loop
               declare
                  Name   : constant String := External_Name (Vars (V));
                  Values : String_List := Tree.Possible_Values_Of (Vars (V));
               begin
                  for Iter in Values'Range loop
                     Set_Return_Value (Data, Values (Iter).all);
                     Set_Return_Value_Key (Data, Name, True);
                  end loop;

                  Free (Values);
               end;
            end loop;
         end;

      end if;
   end Project_Command_Handler;

   ---------------------
   -- Project_Queries --
   ---------------------

   procedure Project_Queries
     (Data : in out Callback_Data'Class; Command : String)
   is

      Project : constant Project_Type := Get_Data (Data, 1);
      Env     : Project_Environment_Access;

   begin
      if Command = "get_executable_name" then
         declare
            Main : constant Virtual_File :=
              GNATCOLL.Scripts.Files.Nth_Arg (Data, 2);
         begin
            Set_Return_Value
              (Data, Project.Executable_Name (Main.Full_Name.all));
         end;

      elsif Command = "sources" then
         Name_Parameters (Data, Sources_Cmd_Parameters);
         declare
            Recursive : constant Boolean := Nth_Arg (Data, 2, False);
            Sources   : File_Array_Access := Project.Source_Files
              (Recursive  => Recursive);
         begin
            Set_Return_Value_As_List (Data);
            for S in Sources'Range loop
               Set_Return_Value
                 (Data, GNATCOLL.Scripts.Files.Create_File
                    (Get_Script (Data), Sources (S)));
            end loop;
            Unchecked_Free (Sources);
         end;

      elsif Command = "external_sources" then
         Env := Project.Get_Environment;
         if Env /= null then
            declare
               Sources : constant File_Array := Env.Predefined_Source_Files;
            begin
               Set_Return_Value_As_List (Data);
               for S in Sources'Range loop
                  Set_Return_Value
                    (Data, GNATCOLL.Scripts.Files.Create_File
                       (Get_Script (Data), Sources (S)));
               end loop;
            end;
         end if;

      elsif Command = "languages" then
         Name_Parameters (Data, Languages_Cmd_Parameters);
         declare
            Langs : GNAT.Strings.String_List := Project.Languages
              (Recursive => Nth_Arg (Data, 2, False));
         begin
            Set_Return_Value_As_List (Data);
            for L in Langs'Range loop
               Set_Return_Value (Data, To_Lower (Langs (L).all));
            end loop;
            Free (Langs);
         end;

      elsif Command = "source_dirs" then
         Name_Parameters (Data, Source_Dirs_Cmd_Parameters);
         declare
            Recursive : constant Boolean := Nth_Arg (Data, 2, False);
            Dirs      : constant File_Array := Project.Source_Dirs
              (Recursive => Recursive);
         begin
            Set_Return_Value_As_List (Data);

            for D in Dirs'Range loop
               --  ??? We should return the Virtual_File object instead
               Set_Return_Value (Data, Dirs (D).Full_Name);
            end loop;
         end;

      elsif Command = "object_dirs" then
         Name_Parameters (Data, Source_Dirs_Cmd_Parameters);
         declare
            Recursive : constant Boolean := Nth_Arg (Data, 2, False);
            Object    : constant File_Array := Object_Path
              (Project,
               Recursive           => Recursive,
               Including_Libraries => False);
         begin
            Set_Return_Value_As_List (Data);

            for J in Object'Range loop
               --  ??? Shouldn't we return a list of files instead ?
               Set_Return_Value (Data, Object (J).Full_Name);
            end loop;
         end;
      elsif Command = "exec_dir" then
         declare
            Exec_Dir : constant Virtual_File := Project.Executables_Directory;
         begin
            Set_Return_Value (Data, Exec_Dir.Full_Name);
         end;
      elsif Command = "target" then
         Data.Set_Return_Value (Project.Get_Target (Default_To_Host => False));
      end if;
   end Project_Queries;

   ------------------
   -- Project_Tree --
   ------------------

   function Project_Tree return GNATCOLL.Projects.Project_Tree_Access is
   begin
      if Retriever = null then
         return null;
      else
         return Retriever.Get_Project_Tree;
      end if;
   end Project_Tree;

   -----------------------
   -- Register_Commands --
   -----------------------

   procedure Register_Commands
     (Repo  : not null access Scripts_Repository_Record'Class;
      Value : not null access Project_Tree_Retriever'Class)
   is
   begin
      Retriever := Project_Tree_Retriever_Access (Value);

      Register_Command
        (Repo, Constructor_Method,
         Minimum_Args => 1,
         Maximum_Args => 1,
         Class        => Get_Project_Class (Repo),
         Handler      => Project_Command_Handler'Access);
      Register_Command
        (Repo, "root",
         Class         => Get_Project_Class (Repo),
         Static_Method => True,
         Handler       => Project_Command_Handler'Access);
      Register_Command
        (Repo, "name",
         Class        => Get_Project_Class (Repo),
         Handler      => Project_Command_Handler'Access);
      Register_Command
        (Repo, "file",
         Class        => Get_Project_Class (Repo),
         Handler      => Project_Command_Handler'Access);
      Register_Command
        (Repo, "ancestor_deps",
         Class        => Get_Project_Class (Repo),
         Handler      => Project_Command_Handler'Access);
      Register_Command
        (Repo, "dependencies",
         Class        => Get_Project_Class (Repo),
         Minimum_Args => 0,
         Maximum_Args => 1,
         Handler      => Project_Command_Handler'Access);
      Register_Command
        (Repo, "get_attribute_as_string",
         Minimum_Args => 1,
         Maximum_Args => 3,
         Class        => Get_Project_Class (Repo),
         Handler      => Project_Command_Handler'Access);
      Register_Command
        (Repo, "get_attribute_as_list",
         Minimum_Args => 1,
         Maximum_Args => 3,
         Class        => Get_Project_Class (Repo),
         Handler      => Project_Command_Handler'Access);
      Register_Command
        (Repo, "scenario_variables",
         Class         => Get_Project_Class (Repo),
         Static_Method => True,
         Handler       => Project_Command_Handler'Access);
      Register_Command
        (Repo, "scenario_variables_cmd_line",
         Minimum_Args  => 0,
         Maximum_Args  => 1,
         Class         => Get_Project_Class (Repo),
         Static_Method => True,
         Handler       => Project_Command_Handler'Access);
      Register_Command
        (Repo, "scenario_variables_values",
         Minimum_Args  => 0,
         Maximum_Args  => 0,
         Class         => Get_Project_Class (Repo),
         Static_Method => True,
         Handler       => Project_Command_Handler'Access);

      Register_Command
        (Repo, "sources",
         Maximum_Args => Sources_Cmd_Parameters'Length,
         Class        => Get_Project_Class (Repo),
         Handler      => Project_Queries'Access);
      Register_Command
        (Repo, "external_sources",
         Maximum_Args  => 0,
         Class         => Get_Project_Class (Repo),
         Handler       => Project_Queries'Access);
      --  This one could be implemented as a property - but we are making this
      --  a method for homogeneity with "sources" from the perspective of the
      --  user.

      Register_Command
        (Repo, "source_dirs",
         Minimum_Args => Source_Dirs_Cmd_Parameters'Length - 1,
         Maximum_Args => Source_Dirs_Cmd_Parameters'Length,
         Class        => Get_Project_Class (Repo),
         Handler      => Project_Queries'Access);
      Register_Command
        (Repo, "get_executable_name",
         Params  => (1 => Param ("main")),
         Class   => Get_Project_Class (Repo),
         Handler => Project_Queries'Access);
      Register_Command
        (Repo, "languages",
         Minimum_Args => 0,
         Maximum_Args => 1,
         Class        => Get_Project_Class (Repo),
         Handler      => Project_Queries'Access);
      Register_Command
        (Repo, "object_dirs",
         Minimum_Args => Source_Dirs_Cmd_Parameters'Length - 1,
         Maximum_Args => Source_Dirs_Cmd_Parameters'Length,
         Class        => Get_Project_Class (Repo),
         Handler      => Project_Queries'Access);
      Register_Command
        (Repo, "exec_dir",
         Class        => Get_Project_Class (Repo),
         Handler      => Project_Queries'Access);
      Register_Property
        (Repo, "target",
         Class  => Get_Project_Class (Repo),
         Getter => Project_Queries'Access);
   end Register_Commands;

   ---------------------------------
   -- Scenario_Variables_Cmd_Line --
   ---------------------------------

   function Scenario_Variables_Cmd_Line (Prefix : String) return String is
      Scenario_Vars : constant Scenario_Variable_Array :=
        Project_Tree.Scenario_Variables;

      function Concat
        (Current : String; Index : Natural; Set_Var : String) return String;
      --  Concat the command line line for the Index-nth variable and the
      --  following ones to Current, and return the result.

      ------------
      -- Concat --
      ------------

      function Concat
        (Current : String; Index : Natural; Set_Var : String) return String is
      begin
         if Index > Scenario_Vars'Last then
            return Current;
         end if;

         return Concat
           (Current
            & Set_Var & External_Name (Scenario_Vars (Index))
            & "=" & Value (Scenario_Vars (Index))
            & " ",
            Index + 1,
            Set_Var);
      end Concat;

   begin
      --  A recursive function is probably not the most efficient way, but this
      --  prevents limits on the command line lengths. This also avoids the use
      --  of unbounded strings.
      return Concat ("", Scenario_Vars'First, Prefix);
   end Scenario_Variables_Cmd_Line;

   --------------
   -- Set_Data --
   --------------

   procedure Set_Data
     (Instance : Class_Instance; Project  : Project_Type) is
   begin
      if not Is_Subclass (Instance, Project_Class_Name) then
         raise Invalid_Data;
      end if;

      Set_Data
        (Instance, Project_Class_Name,
         Project_Properties_Record'(Project => Project));
   end Set_Data;

end GNATCOLL.Scripts.Projects;