1------------------------------------------------------------------------------
2--                                                                          --
3--                         GNAT COMPILER COMPONENTS                         --
4--                                                                          --
5--                             P R J . M A K R                              --
6--                                                                          --
7--                                 B o d y                                  --
8--                                                                          --
9--          Copyright (C) 2001-2003 Free Software Foundation, Inc.          --
10--                                                                          --
11-- GNAT is free software;  you can  redistribute it  and/or modify it under --
12-- terms of the  GNU General Public License as published  by the Free Soft- --
13-- ware  Foundation;  either version 2,  or (at your option) any later ver- --
14-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
15-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
16-- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
17-- for  more details.  You should have  received  a copy of the GNU General --
18-- Public License  distributed with GNAT;  see file COPYING.  If not, write --
19-- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
20-- MA 02111-1307, USA.                                                      --
21--                                                                          --
22-- GNAT was originally developed  by the GNAT team at  New York University. --
23-- Extensive contributions were provided by Ada Core Technologies Inc.      --
24--                                                                          --
25------------------------------------------------------------------------------
26
27with Csets;
28with Namet;    use Namet;
29with Opt;
30with Output;
31with Osint;    use Osint;
32with Prj;      use Prj;
33with Prj.Com;
34with Prj.Part;
35with Prj.PP;
36with Prj.Tree; use Prj.Tree;
37with Snames;   use Snames;
38with Table;    use Table;
39
40with Ada.Characters.Handling;   use Ada.Characters.Handling;
41with GNAT.Directory_Operations; use GNAT.Directory_Operations;
42with GNAT.Expect;               use GNAT.Expect;
43with GNAT.OS_Lib;               use GNAT.OS_Lib;
44with GNAT.Regexp;               use GNAT.Regexp;
45with GNAT.Regpat;               use GNAT.Regpat;
46
47package body Prj.Makr is
48
49   Non_Empty_Node : constant Project_Node_Id := 1;
50   --  Used for the With_Clause of the naming project
51
52   type Matched_Type is (True, False, Excluded);
53
54   Naming_File_Suffix      : constant String := "_naming";
55   Source_List_File_Suffix : constant String := "_source_list.txt";
56
57   Output_FD   : File_Descriptor;
58   --  To save the project file and its naming project file.
59
60   procedure Write_Eol;
61   --  Output an empty line.
62
63   procedure Write_A_Char (C : Character);
64   --  Write one character to Output_FD
65
66   procedure Write_A_String (S : String);
67   --  Write a String to Output_FD
68
69   package Processed_Directories is new Table.Table
70     (Table_Component_Type => String_Access,
71      Table_Index_Type     => Natural,
72      Table_Low_Bound      => 0,
73      Table_Initial        => 10,
74      Table_Increment      => 10,
75      Table_Name           => "Prj.Makr.Processed_Directories");
76
77   ----------
78   -- Make --
79   ----------
80
81   procedure Make
82     (File_Path         : String;
83      Project_File      : Boolean;
84      Directories       : Argument_List;
85      Name_Patterns     : Argument_List;
86      Excluded_Patterns : Argument_List;
87      Foreign_Patterns  : Argument_List;
88      Preproc_Switches  : Argument_List;
89      Very_Verbose      : Boolean)
90   is
91      Path_Name : String (1 .. File_Path'Length +
92                            Project_File_Extension'Length);
93      Path_Last : Natural := File_Path'Length;
94
95      Directory_Last    : Natural := 0;
96
97      Output_Name      : String (Path_Name'Range);
98      Output_Name_Last : Natural;
99      Output_Name_Id   : Name_Id;
100
101      Project_Node        : Project_Node_Id := Empty_Node;
102      Project_Declaration : Project_Node_Id := Empty_Node;
103      Source_Dirs_List    : Project_Node_Id := Empty_Node;
104      Current_Source_Dir  : Project_Node_Id := Empty_Node;
105
106      Project_Naming_Node : Project_Node_Id := Empty_Node;
107      Project_Naming_Decl : Project_Node_Id := Empty_Node;
108      Naming_Package      : Project_Node_Id := Empty_Node;
109
110      Project_Naming_File_Name : String (1 .. Output_Name'Length +
111                                           Naming_File_Suffix'Length);
112
113      Project_Naming_Last : Natural;
114      Project_Naming_Id   : Name_Id := No_Name;
115
116      Excluded_Expressions : array (Excluded_Patterns'Range) of Regexp;
117      Regular_Expressions  : array (Name_Patterns'Range) of Regexp;
118      Foreign_Expressions  : array (Foreign_Patterns'Range) of Regexp;
119
120      Source_List_Path : String (1 .. Output_Name'Length +
121                                   Source_List_File_Suffix'Length);
122      Source_List_Last : Natural;
123
124      Source_List_FD : File_Descriptor;
125
126      Matcher : constant Pattern_Matcher :=
127                  Compile (Expression => "expected|Unit.*\)|No such");
128
129      Args : Argument_List  (1 .. Preproc_Switches'Length + 6);
130--                 (1 => new String'("-c"),
131--                  2 => new String'("-gnats"),
132--                  3 => new String'("-gnatu"),
133--                  4 => new String'("-x"),
134--                  5 => new String'("ada"),
135--                  6 => null);
136
137      type SFN_Pragma is record
138         Unit : String_Access;
139         File : String_Access;
140         Spec : Boolean;
141      end record;
142
143      package SFN_Pragmas is new Table.Table
144        (Table_Component_Type => SFN_Pragma,
145         Table_Index_Type     => Natural,
146         Table_Low_Bound      => 0,
147         Table_Initial        => 50,
148         Table_Increment      => 50,
149         Table_Name           => "Prj.Makr.SFN_Pragmas");
150
151      procedure Process_Directory (Dir_Name : String; Recursively : Boolean);
152      --  Look for Ada and foreign sources in a directory, according to the
153      --  patterns. When Recursively is True, after looking for sources in
154      --  Dir_Name, look also in its subdirectories, if any.
155
156      -----------------------
157      -- Process_Directory --
158      -----------------------
159
160      procedure Process_Directory (Dir_Name : String; Recursively : Boolean) is
161         Matched  : Matched_Type := False;
162         Str      : String (1 .. 2_000);
163         Last     : Natural;
164         Dir      : Dir_Type;
165         Process  : Boolean := True;
166
167      begin
168         if Opt.Verbose_Mode then
169            Output.Write_Str ("Processing directory """);
170            Output.Write_Str (Dir_Name);
171            Output.Write_Line ("""");
172         end if;
173
174         --  Avoid processing several times the same directory.
175
176         for Index in 1 .. Processed_Directories.Last loop
177            if Processed_Directories.Table (Index).all = Dir_Name then
178               Process := False;
179               exit;
180            end if;
181         end loop;
182
183         if Process then
184            Processed_Directories. Increment_Last;
185            Processed_Directories.Table (Processed_Directories.Last) :=
186              new String'(Dir_Name);
187            --  Get the source file names from the directory.
188            --  Fails if the directory does not exist.
189
190            begin
191               Open (Dir, Dir_Name);
192
193            exception
194               when Directory_Error =>
195                  Prj.Com.Fail ("cannot open directory """, Dir_Name, """");
196            end;
197
198            --  Process each regular file in the directory
199
200            loop
201               Read (Dir, Str, Last);
202               exit when Last = 0;
203
204               if Is_Regular_File
205                 (Dir_Name & Directory_Separator & Str (1 .. Last))
206               then
207                  Matched := True;
208
209                  --  First, check if the file name matches at least one of
210                  --  the excluded expressions;
211
212                  for Index in Excluded_Expressions'Range loop
213                     if
214                       Match (Str (1 .. Last), Excluded_Expressions (Index))
215                     then
216                        Matched := Excluded;
217                        exit;
218                     end if;
219                  end loop;
220
221                  --  If it does not match any of the excluded expressions,
222                  --  check if the file name matches at least one of the
223                  --  regular expressions.
224
225                  if Matched = True then
226                     Matched := False;
227
228                     for Index in Regular_Expressions'Range loop
229                        if
230                          Match (Str (1 .. Last), Regular_Expressions (Index))
231                        then
232                           Matched := True;
233                           exit;
234                        end if;
235                     end loop;
236                  end if;
237
238                  if Very_Verbose
239                    or else (Matched = True and then Opt.Verbose_Mode)
240                  then
241                     Output.Write_Str ("   Checking """);
242                     Output.Write_Str (Str (1 .. Last));
243                     Output.Write_Str (""": ");
244                  end if;
245
246                  --  If the file name matches one of the regular expressions,
247                  --  parse it to get its unit name.
248
249                  if Matched = True then
250                     declare
251                        PD     : Process_Descriptor;
252                        Result : Expect_Match;
253
254                     begin
255                        Args (Args'Last) := new String'
256                                                  (Dir_Name &
257                                                   Directory_Separator &
258                                                   Str (1 .. Last));
259
260                        begin
261                           Non_Blocking_Spawn
262                             (PD, "gcc", Args, Err_To_Out => True);
263                           Expect (PD, Result, Matcher);
264
265                        exception
266                           when Process_Died =>
267                              if Opt.Verbose_Mode then
268                                 Output.Write_Str ("(process died) ");
269                              end if;
270
271                              Result := Expect_Timeout;
272                        end;
273
274                        if Result /= Expect_Timeout then
275
276                           --  If we got a unit name, this is a valid source
277                           --  file.
278
279                           declare
280                              S : constant String := Expect_Out_Match (PD);
281
282                           begin
283                              if S'Length >= 13
284                                and then S (S'First .. S'First + 3) = "Unit"
285                              then
286                                 if Opt.Verbose_Mode then
287                                    Output.Write_Str
288                                      (S (S'Last - 4 .. S'Last - 1));
289                                    Output.Write_Str (" of ");
290                                    Output.Write_Line
291                                      (S (S'First + 5 .. S'Last - 7));
292                                 end if;
293
294                                 if Project_File then
295
296                                    --  Add the corresponding attribute in the
297                                    --  Naming package of the naming project.
298
299                                    declare
300                                       Decl_Item : constant Project_Node_Id :=
301                                         Default_Project_Node
302                                         (Of_Kind =>
303                                            N_Declarative_Item);
304
305                                       Attribute : constant Project_Node_Id :=
306                                         Default_Project_Node
307                                         (Of_Kind =>
308                                            N_Attribute_Declaration);
309
310                                       Expression : constant Project_Node_Id :=
311                                         Default_Project_Node
312                                         (Of_Kind => N_Expression,
313                                          And_Expr_Kind => Single);
314
315                                       Term : constant Project_Node_Id :=
316                                         Default_Project_Node
317                                         (Of_Kind => N_Term,
318                                          And_Expr_Kind => Single);
319
320                                       Value : constant Project_Node_Id :=
321                                         Default_Project_Node
322                                         (Of_Kind => N_Literal_String,
323                                          And_Expr_Kind => Single);
324
325                                    begin
326                                       Set_Next_Declarative_Item
327                                         (Decl_Item,
328                                          To => First_Declarative_Item_Of
329                                            (Naming_Package));
330                                       Set_First_Declarative_Item_Of
331                                         (Naming_Package, To => Decl_Item);
332                                       Set_Current_Item_Node
333                                         (Decl_Item, To => Attribute);
334
335                                       if
336                                         S (S'Last - 5 .. S'Last) = "(spec)"
337                                       then
338                                          Set_Name_Of
339                                            (Attribute, To => Name_Spec);
340                                       else
341                                          Set_Name_Of
342                                            (Attribute,
343                                             To => Name_Body);
344                                       end if;
345
346                                       Name_Len := S'Last - S'First - 11;
347                                       Name_Buffer (1 .. Name_Len) :=
348                                         (To_Lower
349                                            (S (S'First + 5 .. S'Last - 7)));
350                                       Set_Associative_Array_Index_Of
351                                         (Attribute, To => Name_Find);
352
353                                       Set_Expression_Of
354                                         (Attribute, To => Expression);
355                                       Set_First_Term (Expression, To => Term);
356                                       Set_Current_Term (Term, To => Value);
357
358                                       Name_Len := Last;
359                                       Name_Buffer (1 .. Name_Len) :=
360                                         Str (1 .. Last);
361                                       Set_String_Value_Of
362                                         (Value, To => Name_Find);
363                                    end;
364
365                                    --  Add source file name to source list
366                                    --  file.
367
368                                    Last := Last + 1;
369                                    Str (Last) := ASCII.LF;
370
371                                    if Write (Source_List_FD,
372                                              Str (1)'Address,
373                                              Last) /= Last
374                                    then
375                                       Prj.Com.Fail ("disk full");
376                                    end if;
377                                 else
378                                    --  Add an entry in the SFN_Pragmas table
379
380                                    SFN_Pragmas.Increment_Last;
381                                    SFN_Pragmas.Table (SFN_Pragmas.Last) :=
382                                      (Unit => new String'
383                                         (S (S'First + 5 .. S'Last - 7)),
384                                       File => new String'(Str (1 .. Last)),
385                                       Spec => S (S'Last - 5 .. S'Last)
386                                       = "(spec)");
387                                 end if;
388
389                              else
390                                 if Opt.Verbose_Mode then
391                                    Output.Write_Line ("not a unit");
392                                 end if;
393                              end if;
394                           end;
395
396                        else
397                           if Opt.Verbose_Mode then
398                              Output.Write_Line ("not a unit");
399                           end if;
400                        end if;
401
402                        Close (PD);
403                     end;
404
405                  else
406                     if Matched = False then
407                        --  Look if this is a foreign source
408
409                        for Index in Foreign_Expressions'Range loop
410                           if Match (Str (1 .. Last),
411                                     Foreign_Expressions (Index))
412                           then
413                              Matched := True;
414                              exit;
415                           end if;
416                        end loop;
417                     end if;
418
419                     if Very_Verbose then
420                        case Matched is
421                           when False =>
422                              Output.Write_Line ("no match");
423
424                           when Excluded =>
425                              Output.Write_Line ("excluded");
426
427                           when True =>
428                              Output.Write_Line ("foreign source");
429                        end case;
430                     end if;
431
432                     if Project_File and Matched = True then
433
434                        --  Add source file name to source list file
435
436                        Last := Last + 1;
437                        Str (Last) := ASCII.LF;
438
439                        if Write (Source_List_FD,
440                                  Str (1)'Address,
441                                  Last) /= Last
442                        then
443                           Prj.Com.Fail ("disk full");
444                        end if;
445                     end if;
446                  end if;
447               end if;
448            end loop;
449
450            Close (Dir);
451         end if;
452
453         --  If Recursively is True, call itself for each subdirectory.
454         --  We do that, even when this directory has already been processed,
455         --  because all of its subdirectories may not have been processed.
456
457         if Recursively then
458            Open (Dir, Dir_Name);
459
460            loop
461               Read (Dir, Str, Last);
462               exit when Last = 0;
463
464               --  Do not call itself for "." or ".."
465
466               if Is_Directory
467                 (Dir_Name & Directory_Separator & Str (1 .. Last))
468                 and then Str (1 .. Last) /= "."
469                 and then Str (1 .. Last) /= ".."
470               then
471                  Process_Directory
472                    (Dir_Name & Directory_Separator & Str (1 .. Last),
473                     Recursively => True);
474               end if;
475            end loop;
476
477            Close (Dir);
478         end if;
479      end Process_Directory;
480
481   --  Start of processing for Make
482
483   begin
484      --  Do some needed initializations
485
486      Csets.Initialize;
487      Namet.Initialize;
488      Snames.Initialize;
489      Prj.Initialize;
490
491      SFN_Pragmas.Set_Last (0);
492
493      Processed_Directories.Set_Last (0);
494
495      --  Initialize the compiler switches
496
497      Args (1) := new String'("-c");
498      Args (2) := new String'("-gnats");
499      Args (3) := new String'("-gnatu");
500      Args (4 .. 3 + Preproc_Switches'Length) := Preproc_Switches;
501      Args (4 + Preproc_Switches'Length) := new String'("-x");
502      Args (5 + Preproc_Switches'Length) := new String'("ada");
503
504      --  Get the path and file names
505
506      if File_Names_Case_Sensitive then
507         Path_Name (1 .. Path_Last) := File_Path;
508      else
509         Path_Name (1 .. Path_Last) := To_Lower (File_Path);
510      end if;
511
512      Path_Name (Path_Last + 1 .. Path_Name'Last) :=
513        Project_File_Extension;
514
515      --  Get the end of directory information, if any
516
517      for Index in reverse 1 .. Path_Last loop
518         if Path_Name (Index) = Directory_Separator then
519            Directory_Last := Index;
520            exit;
521         end if;
522      end loop;
523
524      if Project_File then
525         if Path_Last < Project_File_Extension'Length + 1
526           or else Path_Name
527           (Path_Last - Project_File_Extension'Length + 1 .. Path_Last)
528           /= Project_File_Extension
529         then
530            Path_Last := Path_Name'Last;
531         end if;
532
533         Output_Name (1 .. Path_Last) := To_Lower (Path_Name (1 .. Path_Last));
534         Output_Name_Last := Path_Last - Project_File_Extension'Length;
535
536         if Directory_Last /= 0 then
537            Output_Name (1 .. Output_Name_Last - Directory_Last) :=
538              Output_Name (Directory_Last + 1 .. Output_Name_Last);
539            Output_Name_Last := Output_Name_Last - Directory_Last;
540         end if;
541
542         --  Get the project name id
543
544         Name_Len := Output_Name_Last;
545         Name_Buffer (1 .. Name_Len) := Output_Name (1 .. Name_Len);
546         Output_Name_Id := Name_Find;
547
548         --  Create the project naming file name
549
550         Project_Naming_Last := Output_Name_Last;
551         Project_Naming_File_Name (1 .. Project_Naming_Last) :=
552           Output_Name (1 .. Project_Naming_Last);
553         Project_Naming_File_Name
554           (Project_Naming_Last + 1 ..
555              Project_Naming_Last + Naming_File_Suffix'Length) :=
556           Naming_File_Suffix;
557         Project_Naming_Last :=
558           Project_Naming_Last + Naming_File_Suffix'Length;
559
560         --  Get the project naming id
561
562         Name_Len := Project_Naming_Last;
563         Name_Buffer (1 .. Name_Len) :=
564           Project_Naming_File_Name (1 .. Name_Len);
565         Project_Naming_Id := Name_Find;
566
567         Project_Naming_File_Name
568           (Project_Naming_Last + 1 ..
569              Project_Naming_Last + Project_File_Extension'Length) :=
570           Project_File_Extension;
571         Project_Naming_Last :=
572           Project_Naming_Last + Project_File_Extension'Length;
573
574         --  Create the source list file name
575
576         Source_List_Last := Output_Name_Last;
577         Source_List_Path (1 .. Source_List_Last) :=
578           Output_Name (1 .. Source_List_Last);
579         Source_List_Path
580           (Source_List_Last + 1 ..
581              Source_List_Last + Source_List_File_Suffix'Length) :=
582           Source_List_File_Suffix;
583         Source_List_Last := Source_List_Last + Source_List_File_Suffix'Length;
584
585         --  Add the project file extension to the project name
586
587         Output_Name
588           (Output_Name_Last + 1 ..
589              Output_Name_Last + Project_File_Extension'Length) :=
590           Project_File_Extension;
591         Output_Name_Last := Output_Name_Last + Project_File_Extension'Length;
592      end if;
593
594      --  Change the current directory to the directory of the project file,
595      --  if any directory information is specified.
596
597      if Directory_Last /= 0 then
598         begin
599            Change_Dir (Path_Name (1 .. Directory_Last));
600         exception
601            when Directory_Error =>
602               Prj.Com.Fail
603                 ("unknown directory """,
604                  Path_Name (1 .. Directory_Last),
605                  """");
606         end;
607      end if;
608
609      if Project_File then
610
611         --  Delete the source list file, if it already exists
612
613         declare
614            Discard : Boolean;
615
616         begin
617            Delete_File
618              (Source_List_Path (1 .. Source_List_Last),
619               Success => Discard);
620         end;
621
622         --  And create a new source list file.
623         --  Fail if file cannot be created.
624
625         Source_List_FD := Create_New_File
626           (Name  => Source_List_Path (1 .. Source_List_Last),
627            Fmode => Text);
628
629         if Source_List_FD = Invalid_FD then
630            Prj.Com.Fail
631              ("cannot create file """,
632               Source_List_Path (1 .. Source_List_Last),
633               """");
634         end if;
635      end if;
636
637      --  Compile the regular expressions. Fails immediately if any of
638      --  the specified strings is in error.
639
640      for Index in Excluded_Expressions'Range loop
641         if Very_Verbose then
642            Output.Write_Str ("Excluded pattern: """);
643            Output.Write_Str (Excluded_Patterns (Index).all);
644            Output.Write_Line ("""");
645         end if;
646
647         begin
648            Excluded_Expressions (Index) :=
649              Compile (Pattern => Excluded_Patterns (Index).all, Glob => True);
650
651         exception
652            when Error_In_Regexp =>
653               Prj.Com.Fail
654                 ("invalid regular expression """,
655                  Excluded_Patterns (Index).all,
656                  """");
657         end;
658      end loop;
659
660      for Index in Foreign_Expressions'Range loop
661         if Very_Verbose then
662            Output.Write_Str ("Foreign pattern: """);
663            Output.Write_Str (Foreign_Patterns (Index).all);
664            Output.Write_Line ("""");
665         end if;
666
667         begin
668            Foreign_Expressions (Index) :=
669              Compile (Pattern => Foreign_Patterns (Index).all, Glob => True);
670
671         exception
672            when Error_In_Regexp =>
673               Prj.Com.Fail
674                 ("invalid regular expression """,
675                  Foreign_Patterns (Index).all,
676                  """");
677         end;
678      end loop;
679
680      for Index in Regular_Expressions'Range loop
681         if Very_Verbose then
682            Output.Write_Str ("Pattern: """);
683            Output.Write_Str (Name_Patterns (Index).all);
684            Output.Write_Line ("""");
685         end if;
686
687         begin
688            Regular_Expressions (Index) :=
689              Compile (Pattern => Name_Patterns (Index).all, Glob => True);
690
691         exception
692            when Error_In_Regexp =>
693               Prj.Com.Fail
694                 ("invalid regular expression """,
695                  Name_Patterns (Index).all,
696                  """");
697         end;
698      end loop;
699
700      if Project_File then
701         if Opt.Verbose_Mode then
702            Output.Write_Str ("Naming project file name is """);
703            Output.Write_Str
704              (Project_Naming_File_Name (1 .. Project_Naming_Last));
705            Output.Write_Line ("""");
706         end if;
707
708         --  If there is already a project file with the specified name,
709         --  parse it to get the components that are not automatically
710         --  generated.
711
712         if Is_Regular_File (Output_Name (1 .. Output_Name_Last)) then
713            if Opt.Verbose_Mode then
714               Output.Write_Str ("Parsing already existing project file """);
715               Output.Write_Str (Output_Name (1 .. Output_Name_Last));
716               Output.Write_Line ("""");
717            end if;
718
719            Part.Parse
720              (Project           => Project_Node,
721               Project_File_Name => Output_Name (1 .. Output_Name_Last),
722               Always_Errout_Finalize => False);
723
724            --  If parsing was successful, remove the components that are
725            --  automatically generated, if any, so that they will be
726            --  unconditionally added later.
727
728            if Project_Node /= Empty_Node then
729
730               --  Remove the with clause for the naming project file
731
732               declare
733                  With_Clause : Project_Node_Id :=
734                    First_With_Clause_Of (Project_Node);
735                  Previous    : Project_Node_Id := Empty_Node;
736
737               begin
738                  while With_Clause /= Empty_Node loop
739                     if Tree.Name_Of (With_Clause) = Project_Naming_Id then
740                        if Previous = Empty_Node then
741                           Set_First_With_Clause_Of
742                             (Project_Node,
743                              To => Next_With_Clause_Of (With_Clause));
744                        else
745                           Set_Next_With_Clause_Of
746                             (Previous,
747                              To => Next_With_Clause_Of (With_Clause));
748                        end if;
749
750                        exit;
751                     end if;
752
753                     Previous := With_Clause;
754                     With_Clause := Next_With_Clause_Of (With_Clause);
755                  end loop;
756               end;
757
758               --  Remove attribute declarations of Source_Files,
759               --  Source_List_File, Source_Dirs, and the declaration of
760               --  package Naming, if they exist.
761
762               declare
763                  Declaration  : Project_Node_Id :=
764                                   First_Declarative_Item_Of
765                                     (Project_Declaration_Of
766                                       (Project_Node));
767                  Previous     : Project_Node_Id := Empty_Node;
768                  Current_Node : Project_Node_Id := Empty_Node;
769
770               begin
771                  while Declaration /= Empty_Node loop
772                     Current_Node := Current_Item_Node (Declaration);
773
774                     if (Kind_Of (Current_Node) = N_Attribute_Declaration
775                           and then
776                           (Tree.Name_Of (Current_Node) = Name_Source_Files
777                             or else Tree.Name_Of (Current_Node) =
778                                               Name_Source_List_File
779                              or else Tree.Name_Of (Current_Node) =
780                              Name_Source_Dirs))
781                       or else
782                       (Kind_Of (Current_Node) = N_Package_Declaration
783                          and then Tree.Name_Of (Current_Node) = Name_Naming)
784                     then
785                        if Previous = Empty_Node then
786                           Set_First_Declarative_Item_Of
787                             (Project_Declaration_Of (Project_Node),
788                              To => Next_Declarative_Item (Declaration));
789
790                        else
791                           Set_Next_Declarative_Item
792                             (Previous,
793                              To => Next_Declarative_Item (Declaration));
794                        end if;
795
796                     else
797                        Previous := Declaration;
798                     end if;
799
800                     Declaration := Next_Declarative_Item (Declaration);
801                  end loop;
802               end;
803            end if;
804         end if;
805
806         --  If there were no already existing project file, or if the parsing
807         --  was unsuccessful, create an empty project node with the correct
808         --  name and its project declaration node.
809
810         if Project_Node = Empty_Node then
811            Project_Node := Default_Project_Node (Of_Kind => N_Project);
812            Set_Name_Of (Project_Node, To => Output_Name_Id);
813            Set_Project_Declaration_Of
814              (Project_Node,
815               To => Default_Project_Node (Of_Kind => N_Project_Declaration));
816
817         end if;
818
819         --  Create the naming project node, and add an attribute declaration
820         --  for Source_Files as an empty list, to indicate there are no
821         --  sources in the naming project.
822
823         Project_Naming_Node := Default_Project_Node (Of_Kind => N_Project);
824         Set_Name_Of (Project_Naming_Node, To => Project_Naming_Id);
825         Project_Naming_Decl :=
826           Default_Project_Node (Of_Kind => N_Project_Declaration);
827         Set_Project_Declaration_Of (Project_Naming_Node, Project_Naming_Decl);
828         Naming_Package :=
829           Default_Project_Node (Of_Kind => N_Package_Declaration);
830         Set_Name_Of (Naming_Package, To => Name_Naming);
831
832         declare
833            Decl_Item : constant Project_Node_Id :=
834              Default_Project_Node (Of_Kind => N_Declarative_Item);
835
836            Attribute : constant Project_Node_Id :=
837              Default_Project_Node
838              (Of_Kind => N_Attribute_Declaration,
839               And_Expr_Kind => List);
840
841            Expression : constant Project_Node_Id :=
842              Default_Project_Node
843              (Of_Kind => N_Expression,
844               And_Expr_Kind => List);
845
846            Term  : constant Project_Node_Id :=
847              Default_Project_Node
848              (Of_Kind => N_Term,
849               And_Expr_Kind => List);
850
851            Empty_List : constant Project_Node_Id :=
852              Default_Project_Node
853              (Of_Kind => N_Literal_String_List);
854
855         begin
856            Set_First_Declarative_Item_Of
857              (Project_Naming_Decl, To => Decl_Item);
858            Set_Next_Declarative_Item (Decl_Item, Naming_Package);
859            Set_Current_Item_Node (Decl_Item, To => Attribute);
860            Set_Name_Of (Attribute, To => Name_Source_Files);
861            Set_Expression_Of (Attribute, To => Expression);
862            Set_First_Term (Expression, To => Term);
863            Set_Current_Term (Term, To => Empty_List);
864         end;
865
866         --  Add a with clause on the naming project in the main project
867
868         declare
869            With_Clause : constant Project_Node_Id :=
870              Default_Project_Node (Of_Kind => N_With_Clause);
871
872         begin
873            Set_Next_With_Clause_Of
874              (With_Clause, To => First_With_Clause_Of (Project_Node));
875            Set_First_With_Clause_Of (Project_Node, To => With_Clause);
876            Set_Name_Of (With_Clause, To => Project_Naming_Id);
877
878            --  We set the project node to something different than
879            --  Empty_Node, so that Prj.PP does not generate a limited
880            --  with clause.
881
882            Set_Project_Node_Of (With_Clause, Non_Empty_Node);
883
884            Name_Len := Project_Naming_Last;
885            Name_Buffer (1 .. Name_Len) :=
886              Project_Naming_File_Name (1 .. Project_Naming_Last);
887            Set_String_Value_Of (With_Clause, To => Name_Find);
888         end;
889
890         Project_Declaration := Project_Declaration_Of (Project_Node);
891
892         --  Add a renaming declaration for package Naming in the main project
893
894         declare
895            Decl_Item  : constant Project_Node_Id :=
896              Default_Project_Node (Of_Kind => N_Declarative_Item);
897
898            Naming : constant Project_Node_Id :=
899              Default_Project_Node (Of_Kind => N_Package_Declaration);
900         begin
901            Set_Next_Declarative_Item
902              (Decl_Item,
903               To => First_Declarative_Item_Of (Project_Declaration));
904            Set_First_Declarative_Item_Of
905              (Project_Declaration, To => Decl_Item);
906            Set_Current_Item_Node (Decl_Item, To => Naming);
907            Set_Name_Of (Naming, To => Name_Naming);
908            Set_Project_Of_Renamed_Package_Of
909              (Naming, To => Project_Naming_Node);
910         end;
911
912         --  Add an attribute declaration for Source_Dirs, initialized as an
913         --  empty list. Directories will be added as they are read from the
914         --  directory list file.
915
916         declare
917            Decl_Item  : constant Project_Node_Id :=
918              Default_Project_Node (Of_Kind => N_Declarative_Item);
919
920            Attribute : constant Project_Node_Id :=
921              Default_Project_Node
922              (Of_Kind => N_Attribute_Declaration,
923               And_Expr_Kind => List);
924
925            Expression : constant Project_Node_Id :=
926              Default_Project_Node
927              (Of_Kind => N_Expression,
928               And_Expr_Kind => List);
929
930            Term  : constant Project_Node_Id :=
931              Default_Project_Node
932              (Of_Kind => N_Term, And_Expr_Kind => List);
933
934         begin
935            Set_Next_Declarative_Item
936              (Decl_Item,
937               To => First_Declarative_Item_Of (Project_Declaration));
938            Set_First_Declarative_Item_Of
939              (Project_Declaration, To => Decl_Item);
940            Set_Current_Item_Node (Decl_Item, To => Attribute);
941            Set_Name_Of (Attribute, To => Name_Source_Dirs);
942            Set_Expression_Of (Attribute, To => Expression);
943            Set_First_Term (Expression, To => Term);
944            Source_Dirs_List :=
945              Default_Project_Node (Of_Kind => N_Literal_String_List,
946                                    And_Expr_Kind => List);
947            Set_Current_Term (Term, To => Source_Dirs_List);
948         end;
949
950         --  Add an attribute declaration for Source_List_File with the
951         --  source list file name that will be created.
952
953         declare
954            Decl_Item  : constant Project_Node_Id :=
955              Default_Project_Node (Of_Kind => N_Declarative_Item);
956
957            Attribute : constant Project_Node_Id :=
958              Default_Project_Node
959              (Of_Kind => N_Attribute_Declaration,
960               And_Expr_Kind => Single);
961
962            Expression : constant Project_Node_Id :=
963              Default_Project_Node
964              (Of_Kind => N_Expression,
965               And_Expr_Kind => Single);
966
967            Term  : constant Project_Node_Id :=
968              Default_Project_Node
969              (Of_Kind => N_Term,
970               And_Expr_Kind => Single);
971
972            Value : constant Project_Node_Id :=
973              Default_Project_Node
974              (Of_Kind => N_Literal_String,
975               And_Expr_Kind => Single);
976
977         begin
978            Set_Next_Declarative_Item
979              (Decl_Item,
980               To => First_Declarative_Item_Of (Project_Declaration));
981            Set_First_Declarative_Item_Of
982              (Project_Declaration, To => Decl_Item);
983            Set_Current_Item_Node (Decl_Item, To => Attribute);
984            Set_Name_Of (Attribute, To => Name_Source_List_File);
985            Set_Expression_Of (Attribute, To => Expression);
986            Set_First_Term (Expression, To => Term);
987            Set_Current_Term (Term, To => Value);
988            Name_Len := Source_List_Last;
989            Name_Buffer (1 .. Name_Len) :=
990              Source_List_Path (1 .. Source_List_Last);
991            Set_String_Value_Of (Value, To => Name_Find);
992         end;
993      end if;
994
995      --  Process each directory
996
997      for Index in Directories'Range  loop
998
999         declare
1000            Dir_Name    : constant String := Directories (Index).all;
1001            Last        : Natural := Dir_Name'Last;
1002            Recursively : Boolean := False;
1003         begin
1004            if Dir_Name'Length >= 4
1005              and then (Dir_Name (Last - 2 .. Last) = "/**")
1006            then
1007               Last := Last - 3;
1008               Recursively := True;
1009            end if;
1010
1011            if Project_File then
1012
1013               --  Add the directory in the list for attribute Source_Dirs
1014
1015               declare
1016                  Expression : constant Project_Node_Id :=
1017                    Default_Project_Node
1018                    (Of_Kind => N_Expression,
1019                     And_Expr_Kind => Single);
1020
1021                  Term : constant Project_Node_Id :=
1022                    Default_Project_Node
1023                    (Of_Kind => N_Term,
1024                     And_Expr_Kind => Single);
1025
1026                  Value : constant Project_Node_Id :=
1027                    Default_Project_Node
1028                    (Of_Kind => N_Literal_String,
1029                     And_Expr_Kind => Single);
1030
1031               begin
1032                  if Current_Source_Dir = Empty_Node then
1033                     Set_First_Expression_In_List
1034                       (Source_Dirs_List, To => Expression);
1035                  else
1036                     Set_Next_Expression_In_List
1037                       (Current_Source_Dir, To => Expression);
1038                  end if;
1039
1040                  Current_Source_Dir := Expression;
1041                  Set_First_Term (Expression, To => Term);
1042                  Set_Current_Term (Term, To => Value);
1043                  Name_Len := Dir_Name'Length;
1044                  Name_Buffer (1 .. Name_Len) := Dir_Name;
1045                  Set_String_Value_Of (Value, To => Name_Find);
1046               end;
1047            end if;
1048
1049            Process_Directory (Dir_Name (Dir_Name'First .. Last), Recursively);
1050         end;
1051
1052      end loop;
1053
1054      if Project_File then
1055         Close (Source_List_FD);
1056      end if;
1057
1058      declare
1059         Discard : Boolean;
1060
1061      begin
1062         --  Delete the file if it already exists
1063
1064         Delete_File
1065           (Path_Name (Directory_Last + 1 .. Path_Last),
1066            Success => Discard);
1067
1068         --  Create a new one
1069
1070         if Opt.Verbose_Mode then
1071            Output.Write_Str ("Creating new file """);
1072            Output.Write_Str (Path_Name (Directory_Last + 1 .. Path_Last));
1073            Output.Write_Line ("""");
1074         end if;
1075
1076         Output_FD := Create_New_File
1077           (Path_Name (Directory_Last + 1 .. Path_Last),
1078            Fmode => Text);
1079
1080         --  Fails if project file cannot be created
1081
1082         if Output_FD = Invalid_FD then
1083            Prj.Com.Fail
1084              ("cannot create new """, Path_Name (1 .. Path_Last), """");
1085         end if;
1086
1087         if Project_File then
1088
1089            --  Output the project file
1090
1091            Prj.PP.Pretty_Print
1092              (Project_Node,
1093               W_Char => Write_A_Char'Access,
1094               W_Eol  => Write_Eol'Access,
1095               W_Str  => Write_A_String'Access,
1096               Backward_Compatibility => False);
1097            Close (Output_FD);
1098
1099            --  Delete the naming project file if it already exists
1100
1101            Delete_File
1102              (Project_Naming_File_Name (1 .. Project_Naming_Last),
1103               Success => Discard);
1104
1105            --  Create a new one
1106
1107            if Opt.Verbose_Mode then
1108               Output.Write_Str ("Creating new naming project file """);
1109               Output.Write_Str (Project_Naming_File_Name
1110                                   (1 .. Project_Naming_Last));
1111               Output.Write_Line ("""");
1112            end if;
1113
1114            Output_FD := Create_New_File
1115              (Project_Naming_File_Name (1 .. Project_Naming_Last),
1116               Fmode => Text);
1117
1118            --  Fails if naming project file cannot be created
1119
1120            if Output_FD = Invalid_FD then
1121               Prj.Com.Fail
1122                 ("cannot create new """,
1123                  Project_Naming_File_Name (1 .. Project_Naming_Last),
1124                  """");
1125            end if;
1126
1127            --  Output the naming project file
1128
1129            Prj.PP.Pretty_Print
1130              (Project_Naming_Node,
1131               W_Char => Write_A_Char'Access,
1132               W_Eol  => Write_Eol'Access,
1133               W_Str  => Write_A_String'Access,
1134               Backward_Compatibility => False);
1135            Close (Output_FD);
1136
1137         else
1138            --  Write to the output file each entry in the SFN_Pragmas table
1139            --  as an pragma Source_File_Name.
1140
1141            for Index in 1 .. SFN_Pragmas.Last loop
1142               Write_A_String ("pragma Source_File_Name");
1143               Write_Eol;
1144               Write_A_String ("  (");
1145               Write_A_String (SFN_Pragmas.Table (Index).Unit.all);
1146               Write_A_String (",");
1147               Write_Eol;
1148
1149               if SFN_Pragmas.Table (Index).Spec then
1150                  Write_A_String ("   Spec_File_Name => """);
1151
1152               else
1153                  Write_A_String ("   Body_File_Name => """);
1154               end if;
1155
1156               Write_A_String (SFN_Pragmas.Table (Index).File.all);
1157               Write_A_String (""");");
1158               Write_Eol;
1159            end loop;
1160
1161            Close (Output_FD);
1162         end if;
1163      end;
1164
1165   end Make;
1166
1167   ----------------
1168   -- Write_Char --
1169   ----------------
1170   procedure Write_A_Char (C : Character) is
1171   begin
1172      Write_A_String ((1 => C));
1173   end Write_A_Char;
1174
1175   ---------------
1176   -- Write_Eol --
1177   ---------------
1178
1179   procedure Write_Eol is
1180   begin
1181      Write_A_String ((1 => ASCII.LF));
1182   end Write_Eol;
1183
1184   --------------------
1185   -- Write_A_String --
1186   --------------------
1187
1188   procedure Write_A_String (S : String) is
1189      Str : String (1 .. S'Length);
1190
1191   begin
1192      if S'Length > 0 then
1193         Str := S;
1194
1195         if Write (Output_FD, Str (1)'Address, Str'Length) /= Str'Length then
1196            Prj.Com.Fail ("disk full");
1197         end if;
1198      end if;
1199   end Write_A_String;
1200
1201end Prj.Makr;
1202