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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- G N A T N A M E --
-- --
-- B o d y --
-- --
-- Copyright (C) 2001-2022, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 3, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING3. If not, go to --
-- http://www.gnu.org/licenses for a complete copy of the license. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with Ada.Characters.Handling; use Ada.Characters.Handling;
with Ada.Command_Line; use Ada.Command_Line;
with Ada.Text_IO; use Ada.Text_IO;
with GNAT.Command_Line; use GNAT.Command_Line;
with GNAT.Directory_Operations; use GNAT.Directory_Operations;
with GNAT.Dynamic_Tables;
with GNAT.OS_Lib; use GNAT.OS_Lib;
with Make_Util; use Make_Util;
with Namet; use Namet;
with Opt;
with Osint; use Osint;
with Output;
with Switch; use Switch;
with Table;
with Tempdir;
with Types; use Types;
with System.CRTL;
with System.Regexp; use System.Regexp;
procedure Gnatname is
pragma Warnings (Off);
type Matched_Type is (True, False, Excluded);
pragma Warnings (On);
Create_Project : Boolean := False;
Subdirs_Switch : constant String := "--subdirs=";
Usage_Output : Boolean := False;
-- Set to True when usage is output, to avoid multiple output
Usage_Needed : Boolean := False;
-- Set to True by -h switch
Version_Output : Boolean := False;
-- Set to True when version is output, to avoid multiple output
Very_Verbose : Boolean := False;
-- Set to True with -v -v
File_Path : String_Access := new String'("gnat.adc");
-- Path name of the file specified by -c or -P switch
File_Set : Boolean := False;
-- Set to True by -c or -P switch.
-- Used to detect multiple -c/-P switches.
Args : Argument_List_Access;
-- The list of arguments for calls to the compiler to get the unit names
-- and kinds (spec or body) in the Ada sources.
Path_Name : String_Access;
Path_Last : Natural;
Directory_Last : Natural := 0;
function Dup (Fd : File_Descriptor) return File_Descriptor;
procedure Dup2 (Old_Fd, New_Fd : File_Descriptor);
Gcc : constant String := "gcc";
Gcc_Path : String_Access := null;
package Patterns is new GNAT.Dynamic_Tables
(Table_Component_Type => String_Access,
Table_Index_Type => Natural,
Table_Low_Bound => 0,
Table_Initial => 10,
Table_Increment => 100);
-- Table to accumulate the patterns
type Argument_Data is record
Directories : Patterns.Instance;
Name_Patterns : Patterns.Instance;
Excluded_Patterns : Patterns.Instance;
Foreign_Patterns : Patterns.Instance;
end record;
package Arguments is new Table.Table
(Table_Component_Type => Argument_Data,
Table_Index_Type => Natural,
Table_Low_Bound => 0,
Table_Initial => 10,
Table_Increment => 100,
Table_Name => "Gnatname.Arguments");
-- Table to accumulate directories and patterns
package Preprocessor_Switches is new Table.Table
(Table_Component_Type => String_Access,
Table_Index_Type => Natural,
Table_Low_Bound => 0,
Table_Initial => 10,
Table_Increment => 100,
Table_Name => "Gnatname.Preprocessor_Switches");
-- Table to store the preprocessor switches to be used in the call
-- to the compiler.
type Source is record
File_Name : Name_Id;
Unit_Name : Name_Id;
Index : Int := 0;
Spec : Boolean;
end record;
package Processed_Directories is new Table.Table
(Table_Component_Type => String_Access,
Table_Index_Type => Natural,
Table_Low_Bound => 0,
Table_Initial => 10,
Table_Increment => 100,
Table_Name => "Prj.Makr.Processed_Directories");
-- The list of already processed directories for each section, to avoid
-- processing several times the same directory in the same section.
package Sources is new Table.Table
(Table_Component_Type => Source,
Table_Index_Type => Natural,
Table_Low_Bound => 0,
Table_Initial => 10,
Table_Increment => 100,
Table_Name => "Gnatname.Sources");
-- The list of Ada sources found, with their unit name and kind, to be put
-- in the pragmas Source_File_Name in the configuration pragmas file.
procedure Output_Version;
-- Print name and version
procedure Usage;
-- Print usage
procedure Scan_Args;
-- Scan the command line arguments
procedure Add_Source_Directory (S : String);
-- Add S in the Source_Directories table
procedure Get_Directories (From_File : String);
-- Read a source directory text file
procedure Write_Eol;
-- Output an empty line
procedure Write_A_String (S : String);
-- Write a String to Output_FD
procedure Initialize
(File_Path : String;
Preproc_Switches : Argument_List);
-- Start the creation of a configuration pragmas file
--
-- File_Path is the name of the configuration pragmas file to create
--
-- Preproc_Switches is a list of switches to be used when invoking the
-- compiler to get the name and kind of unit of a source file.
type Regexp_List is array (Positive range <>) of Regexp;
procedure Process
(Directories : Argument_List;
Name_Patterns : Regexp_List;
Excluded_Patterns : Regexp_List;
Foreign_Patterns : Regexp_List);
-- Look for source files in the specified directories, with the specified
-- patterns.
--
-- Directories is the list of source directories where to look for sources.
--
-- Name_Patterns is a potentially empty list of file name patterns to check
-- for Ada Sources.
--
-- Excluded_Patterns is a potentially empty list of file name patterns that
-- should not be checked for Ada or non Ada sources.
--
-- Foreign_Patterns is a potentially empty list of file name patterns to
-- check for non Ada sources.
--
-- At least one of Name_Patterns and Foreign_Patterns is not empty
procedure Finalize;
-- Write the configuration pragmas file indicated in a call to procedure
-- Initialize, after one or several calls to procedure Process.
--------------------------
-- Add_Source_Directory --
--------------------------
procedure Add_Source_Directory (S : String) is
begin
Patterns.Append
(Arguments.Table (Arguments.Last).Directories, new String'(S));
end Add_Source_Directory;
---------
-- Dup --
---------
function Dup (Fd : File_Descriptor) return File_Descriptor is
begin
return File_Descriptor (System.CRTL.dup (Integer (Fd)));
end Dup;
----------
-- Dup2 --
----------
procedure Dup2 (Old_Fd, New_Fd : File_Descriptor) is
Fd : Integer;
pragma Warnings (Off, Fd);
begin
Fd := System.CRTL.dup2 (Integer (Old_Fd), Integer (New_Fd));
end Dup2;
---------------------
-- Get_Directories --
---------------------
procedure Get_Directories (From_File : String) is
File : Ada.Text_IO.File_Type;
Line : String (1 .. 2_000);
Last : Natural;
begin
Open (File, In_File, From_File);
while not End_Of_File (File) loop
Get_Line (File, Line, Last);
if Last /= 0 then
Add_Source_Directory (Line (1 .. Last));
end if;
end loop;
Close (File);
exception
when Name_Error =>
Fail ("cannot open source directory file """ & From_File & '"');
end Get_Directories;
--------------
-- Finalize --
--------------
procedure Finalize is
Discard : Boolean;
pragma Warnings (Off, Discard);
begin
-- Delete the file if it already exists
Delete_File
(Path_Name (Directory_Last + 1 .. Path_Last),
Success => Discard);
-- Create a new one
if Opt.Verbose_Mode then
Output.Write_Str ("Creating new file """);
Output.Write_Str (Path_Name (Directory_Last + 1 .. Path_Last));
Output.Write_Line ("""");
end if;
Output_FD := Create_New_File
(Path_Name (Directory_Last + 1 .. Path_Last),
Fmode => Text);
-- Fails if file cannot be created
if Output_FD = Invalid_FD then
Fail_Program
("cannot create new """ & Path_Name (1 .. Path_Last) & """");
end if;
-- For each Ada source, write a pragma Source_File_Name to the
-- configuration pragmas file.
for Index in 1 .. Sources.Last loop
if Sources.Table (Index).Unit_Name /= No_Name then
Write_A_String ("pragma Source_File_Name");
Write_Eol;
Write_A_String (" (");
Write_A_String
(Get_Name_String (Sources.Table (Index).Unit_Name));
Write_A_String (",");
Write_Eol;
if Sources.Table (Index).Spec then
Write_A_String (" Spec_File_Name => """);
else
Write_A_String (" Body_File_Name => """);
end if;
Write_A_String
(Get_Name_String (Sources.Table (Index).File_Name));
Write_A_String ("""");
if Sources.Table (Index).Index /= 0 then
Write_A_String (", Index =>");
Write_A_String (Sources.Table (Index).Index'Img);
end if;
Write_A_String (");");
Write_Eol;
end if;
end loop;
Close (Output_FD);
end Finalize;
----------------
-- Initialize --
----------------
procedure Initialize
(File_Path : String;
Preproc_Switches : Argument_List)
is
begin
Sources.Set_Last (0);
-- Initialize the compiler switches
Args := new Argument_List (1 .. Preproc_Switches'Length + 6);
Args (1) := new String'("-c");
Args (2) := new String'("-gnats");
Args (3) := new String'("-gnatu");
Args (4 .. 3 + Preproc_Switches'Length) := Preproc_Switches;
Args (4 + Preproc_Switches'Length) := new String'("-x");
Args (5 + Preproc_Switches'Length) := new String'("ada");
-- Get the path and file names
Path_Name := new
String (1 .. File_Path'Length);
Path_Last := File_Path'Length;
if File_Names_Case_Sensitive then
Path_Name (1 .. Path_Last) := File_Path;
else
Path_Name (1 .. Path_Last) := To_Lower (File_Path);
end if;
-- Get the end of directory information, if any
for Index in reverse 1 .. Path_Last loop
if Path_Name (Index) = Directory_Separator then
Directory_Last := Index;
exit;
end if;
end loop;
-- Change the current directory to the directory of the project file,
-- if any directory information is specified.
if Directory_Last /= 0 then
begin
Change_Dir (Path_Name (1 .. Directory_Last));
exception
when Directory_Error =>
Fail_Program
("unknown directory """
& Path_Name (1 .. Directory_Last)
& """");
end;
end if;
end Initialize;
-------------
-- Process --
-------------
procedure Process
(Directories : Argument_List;
Name_Patterns : Regexp_List;
Excluded_Patterns : Regexp_List;
Foreign_Patterns : Regexp_List)
is
procedure Process_Directory (Dir_Name : String);
-- Look for Ada and foreign sources in a directory, according to the
-- patterns.
-----------------------
-- Process_Directory --
-----------------------
procedure Process_Directory (Dir_Name : String) is
Matched : Matched_Type := False;
Str : String (1 .. 2_000);
Canon : String (1 .. 2_000);
Last : Natural;
Dir : Dir_Type;
Do_Process : Boolean := True;
Temp_File_Name : String_Access := null;
Save_Last_Source_Index : Natural := 0;
File_Name_Id : Name_Id := No_Name;
Current_Source : Source;
begin
-- Avoid processing the same directory more than once
for Index in 1 .. Processed_Directories.Last loop
if Processed_Directories.Table (Index).all = Dir_Name then
Do_Process := False;
exit;
end if;
end loop;
if Do_Process then
if Opt.Verbose_Mode then
Output.Write_Str ("Processing directory """);
Output.Write_Str (Dir_Name);
Output.Write_Line ("""");
end if;
Processed_Directories. Increment_Last;
Processed_Directories.Table (Processed_Directories.Last) :=
new String'(Dir_Name);
-- Get the source file names from the directory. Fails if the
-- directory does not exist.
begin
Open (Dir, Dir_Name);
exception
when Directory_Error =>
Fail_Program ("cannot open directory """ & Dir_Name & """");
end;
-- Process each regular file in the directory
File_Loop : loop
Read (Dir, Str, Last);
exit File_Loop when Last = 0;
-- Copy the file name and put it in canonical case to match
-- against the patterns that have themselves already been put
-- in canonical case.
Canon (1 .. Last) := Str (1 .. Last);
Canonical_Case_File_Name (Canon (1 .. Last));
if Is_Regular_File
(Dir_Name & Directory_Separator & Str (1 .. Last))
then
Matched := True;
Name_Len := Last;
Name_Buffer (1 .. Name_Len) := Str (1 .. Last);
File_Name_Id := Name_Find;
-- First, check if the file name matches at least one of
-- the excluded expressions;
for Index in Excluded_Patterns'Range loop
if
Match (Canon (1 .. Last), Excluded_Patterns (Index))
then
Matched := Excluded;
exit;
end if;
end loop;
-- If it does not match any of the excluded expressions,
-- check if the file name matches at least one of the
-- regular expressions.
if Matched = True then
Matched := False;
for Index in Name_Patterns'Range loop
if
Match
(Canon (1 .. Last), Name_Patterns (Index))
then
Matched := True;
exit;
end if;
end loop;
end if;
if Very_Verbose
or else (Matched = True and then Opt.Verbose_Mode)
then
Output.Write_Str (" Checking """);
Output.Write_Str (Str (1 .. Last));
Output.Write_Line (""": ");
end if;
-- If the file name matches one of the regular expressions,
-- parse it to get its unit name.
if Matched = True then
declare
FD : File_Descriptor;
Success : Boolean;
Saved_Output : File_Descriptor;
Saved_Error : File_Descriptor;
Tmp_File : Path_Name_Type;
begin
-- If we don't have the path of the compiler yet,
-- get it now. The compiler name may have a prefix,
-- so we get the potentially prefixed name.
if Gcc_Path = null then
declare
Prefix_Gcc : String_Access :=
Program_Name (Gcc, "gnatname");
begin
Gcc_Path :=
Locate_Exec_On_Path (Prefix_Gcc.all);
Free (Prefix_Gcc);
end;
if Gcc_Path = null then
Fail_Program ("could not locate " & Gcc);
end if;
end if;
-- Create the temporary file
Tempdir.Create_Temp_File (FD, Tmp_File);
if FD = Invalid_FD then
Fail_Program
("could not create temporary file");
else
Temp_File_Name :=
new String'(Get_Name_String (Tmp_File));
end if;
Args (Args'Last) :=
new String'
(Dir_Name & Directory_Separator & Str (1 .. Last));
-- Save the standard output and error
Saved_Output := Dup (Standout);
Saved_Error := Dup (Standerr);
-- Set standard output and error to the temporary file
Dup2 (FD, Standout);
Dup2 (FD, Standerr);
-- And spawn the compiler
Spawn (Gcc_Path.all, Args.all, Success);
-- Restore the standard output and error
Dup2 (Saved_Output, Standout);
Dup2 (Saved_Error, Standerr);
-- Close the temporary file
Close (FD);
-- And close the saved standard output and error to
-- avoid too many file descriptors.
Close (Saved_Output);
Close (Saved_Error);
-- Now that standard output is restored, check if
-- the compiler ran correctly.
-- Read the lines of the temporary file:
-- they should contain the kind and name of the unit.
declare
File : Ada.Text_IO.File_Type;
Text_Line : String (1 .. 1_000);
Text_Last : Natural;
begin
begin
Open (File, In_File, Temp_File_Name.all);
exception
when others =>
Fail_Program
("could not read temporary file " &
Temp_File_Name.all);
end;
Save_Last_Source_Index := Sources.Last;
if End_Of_File (File) then
if Opt.Verbose_Mode then
if not Success then
Output.Write_Str (" (process died) ");
end if;
end if;
else
Line_Loop : while not End_Of_File (File) loop
Get_Line (File, Text_Line, Text_Last);
-- Find the first closing parenthesis
Char_Loop : for J in 1 .. Text_Last loop
if Text_Line (J) = ')' then
if J >= 13 and then
Text_Line (1 .. 4) = "Unit"
then
-- Add entry to Sources table
Name_Len := J - 12;
Name_Buffer (1 .. Name_Len) :=
Text_Line (6 .. J - 7);
Current_Source :=
(Unit_Name => Name_Find,
File_Name => File_Name_Id,
Index => 0,
Spec => Text_Line (J - 5 .. J) =
"(spec)");
Sources.Append (Current_Source);
end if;
exit Char_Loop;
end if;
end loop Char_Loop;
end loop Line_Loop;
end if;
if Save_Last_Source_Index = Sources.Last then
if Opt.Verbose_Mode then
Output.Write_Line (" not a unit");
end if;
else
if Sources.Last >
Save_Last_Source_Index + 1
then
for Index in Save_Last_Source_Index + 1 ..
Sources.Last
loop
Sources.Table (Index).Index :=
Int (Index - Save_Last_Source_Index);
end loop;
end if;
for Index in Save_Last_Source_Index + 1 ..
Sources.Last
loop
Current_Source := Sources.Table (Index);
pragma Annotate
(CodePeer, Modified, Current_Source);
if Opt.Verbose_Mode then
if Current_Source.Spec then
Output.Write_Str (" spec of ");
else
Output.Write_Str (" body of ");
end if;
Output.Write_Line
(Get_Name_String
(Current_Source.Unit_Name));
end if;
end loop;
end if;
Close (File);
Delete_File (Temp_File_Name.all, Success);
end;
end;
-- File name matches none of the regular expressions
else
-- If file is not excluded, see if this is foreign source
if Matched /= Excluded then
for Index in Foreign_Patterns'Range loop
if Match (Canon (1 .. Last),
Foreign_Patterns (Index))
then
Matched := True;
exit;
end if;
end loop;
end if;
if Very_Verbose then
case Matched is
when False =>
Output.Write_Line ("no match");
when Excluded =>
Output.Write_Line ("excluded");
when True =>
Output.Write_Line ("foreign source");
end case;
end if;
if Matched = True then
-- Add source file name without unit name
Name_Len := 0;
Add_Str_To_Name_Buffer (Canon (1 .. Last));
Sources.Append
((File_Name => Name_Find,
Unit_Name => No_Name,
Index => 0,
Spec => False));
end if;
end if;
end if;
end loop File_Loop;
Close (Dir);
end if;
end Process_Directory;
-- Start of processing for Process
begin
Processed_Directories.Set_Last (0);
-- Process each directory
for Index in Directories'Range loop
Process_Directory (Directories (Index).all);
end loop;
end Process;
--------------------
-- Output_Version --
--------------------
procedure Output_Version is
begin
if not Version_Output then
Version_Output := True;
Output.Write_Eol;
Display_Version ("GNATNAME", "2001");
end if;
end Output_Version;
---------------
-- Scan_Args --
---------------
procedure Scan_Args is
procedure Check_Version_And_Help is new Check_Version_And_Help_G (Usage);
Project_File_Name_Expected : Boolean;
Pragmas_File_Expected : Boolean;
Directory_Expected : Boolean;
Dir_File_Name_Expected : Boolean;
Foreign_Pattern_Expected : Boolean;
Excluded_Pattern_Expected : Boolean;
procedure Check_Regular_Expression (S : String);
-- Compile string S into a Regexp, fail if any error
-----------------------------
-- Check_Regular_Expression--
-----------------------------
procedure Check_Regular_Expression (S : String) is
Dummy : Regexp;
pragma Warnings (Off, Dummy);
begin
Dummy := Compile (S, Glob => True);
exception
when Error_In_Regexp =>
Fail ("invalid regular expression """ & S & """");
end Check_Regular_Expression;
-- Start of processing for Scan_Args
begin
-- First check for --version or --help
Check_Version_And_Help ("GNATNAME", "2001");
-- Now scan the other switches
Project_File_Name_Expected := False;
Pragmas_File_Expected := False;
Directory_Expected := False;
Dir_File_Name_Expected := False;
Foreign_Pattern_Expected := False;
Excluded_Pattern_Expected := False;
for Next_Arg in 1 .. Argument_Count loop
declare
Next_Argv : constant String := Argument (Next_Arg);
Arg : String (1 .. Next_Argv'Length) := Next_Argv;
begin
if Arg'Length > 0 then
-- -P xxx
if Project_File_Name_Expected then
if Arg (1) = '-' then
Fail ("project file name missing");
else
File_Set := True;
File_Path := new String'(Arg);
Project_File_Name_Expected := False;
end if;
-- -c file
elsif Pragmas_File_Expected then
File_Set := True;
File_Path := new String'(Arg);
Pragmas_File_Expected := False;
-- -d xxx
elsif Directory_Expected then
Add_Source_Directory (Arg);
Directory_Expected := False;
-- -D xxx
elsif Dir_File_Name_Expected then
Get_Directories (Arg);
Dir_File_Name_Expected := False;
-- -f xxx
elsif Foreign_Pattern_Expected then
Patterns.Append
(Arguments.Table (Arguments.Last).Foreign_Patterns,
new String'(Arg));
Check_Regular_Expression (Arg);
Foreign_Pattern_Expected := False;
-- -x xxx
elsif Excluded_Pattern_Expected then
Patterns.Append
(Arguments.Table (Arguments.Last).Excluded_Patterns,
new String'(Arg));
Check_Regular_Expression (Arg);
Excluded_Pattern_Expected := False;
-- There must be at least one Ada pattern or one foreign
-- pattern for the previous section.
-- --and
elsif Arg = "--and" then
if Patterns.Last
(Arguments.Table (Arguments.Last).Name_Patterns) = 0
and then
Patterns.Last
(Arguments.Table (Arguments.Last).Foreign_Patterns) = 0
then
Try_Help;
return;
end if;
-- If no directory were specified for the previous section,
-- then the directory is the project directory.
if Patterns.Last
(Arguments.Table (Arguments.Last).Directories) = 0
then
Patterns.Append
(Arguments.Table (Arguments.Last).Directories,
new String'("."));
end if;
-- Add and initialize another component to Arguments table
declare
New_Arguments : Argument_Data;
pragma Warnings (Off, New_Arguments);
-- Declaring this defaulted initialized object ensures
-- that the new allocated component of table Arguments
-- is correctly initialized.
-- This is VERY ugly, Table should never be used with
-- data requiring default initialization. We should
-- find a way to avoid violating this rule ???
begin
Arguments.Append (New_Arguments);
end;
Patterns.Init
(Arguments.Table (Arguments.Last).Directories);
Patterns.Set_Last
(Arguments.Table (Arguments.Last).Directories, 0);
Patterns.Init
(Arguments.Table (Arguments.Last).Name_Patterns);
Patterns.Set_Last
(Arguments.Table (Arguments.Last).Name_Patterns, 0);
Patterns.Init
(Arguments.Table (Arguments.Last).Excluded_Patterns);
Patterns.Set_Last
(Arguments.Table (Arguments.Last).Excluded_Patterns, 0);
Patterns.Init
(Arguments.Table (Arguments.Last).Foreign_Patterns);
Patterns.Set_Last
(Arguments.Table (Arguments.Last).Foreign_Patterns, 0);
-- Subdirectory switch
elsif Arg'Length > Subdirs_Switch'Length
and then Arg (1 .. Subdirs_Switch'Length) = Subdirs_Switch
then
null;
-- Subdirs are only used in gprname
-- --no-backup
elsif Arg = "--no-backup" then
Opt.No_Backup := True;
-- -c
elsif Arg'Length >= 2 and then Arg (1 .. 2) = "-c" then
if File_Set then
Fail ("only one -P or -c switch may be specified");
end if;
if Arg'Length = 2 then
Pragmas_File_Expected := True;
if Next_Arg = Argument_Count then
Fail ("configuration pragmas file name missing");
end if;
else
File_Set := True;
File_Path := new String'(Arg (3 .. Arg'Last));
end if;
-- -d
elsif Arg'Length >= 2 and then Arg (1 .. 2) = "-d" then
if Arg'Length = 2 then
Directory_Expected := True;
if Next_Arg = Argument_Count then
Fail ("directory name missing");
end if;
else
Add_Source_Directory (Arg (3 .. Arg'Last));
end if;
-- -D
elsif Arg'Length >= 2 and then Arg (1 .. 2) = "-D" then
if Arg'Length = 2 then
Dir_File_Name_Expected := True;
if Next_Arg = Argument_Count then
Fail ("directory list file name missing");
end if;
else
Get_Directories (Arg (3 .. Arg'Last));
end if;
-- -eL
elsif Arg = "-eL" then
Opt.Follow_Links_For_Files := True;
Opt.Follow_Links_For_Dirs := True;
-- -f
elsif Arg'Length >= 2 and then Arg (1 .. 2) = "-f" then
if Arg'Length = 2 then
Foreign_Pattern_Expected := True;
if Next_Arg = Argument_Count then
Fail ("foreign pattern missing");
end if;
else
Patterns.Append
(Arguments.Table (Arguments.Last).Foreign_Patterns,
new String'(Arg (3 .. Arg'Last)));
Check_Regular_Expression (Arg (3 .. Arg'Last));
end if;
-- -gnatep or -gnateD
elsif Arg'Length > 7 and then
(Arg (1 .. 7) = "-gnatep" or else Arg (1 .. 7) = "-gnateD")
then
Preprocessor_Switches.Append (new String'(Arg));
-- -h
elsif Arg = "-h" then
Usage_Needed := True;
-- -P
elsif Arg'Length >= 2 and then Arg (1 .. 2) = "-P" then
if File_Set then
Fail ("only one -c or -P switch may be specified");
end if;
if Arg'Length = 2 then
if Next_Arg = Argument_Count then
Fail ("project file name missing");
else
Project_File_Name_Expected := True;
end if;
else
File_Set := True;
File_Path := new String'(Arg (3 .. Arg'Last));
end if;
Create_Project := True;
-- -v
elsif Arg = "-v" then
if Opt.Verbose_Mode then
Very_Verbose := True;
else
Opt.Verbose_Mode := True;
end if;
-- -x
elsif Arg'Length >= 2 and then Arg (1 .. 2) = "-x" then
if Arg'Length = 2 then
Excluded_Pattern_Expected := True;
if Next_Arg = Argument_Count then
Fail ("excluded pattern missing");
end if;
else
Patterns.Append
(Arguments.Table (Arguments.Last).Excluded_Patterns,
new String'(Arg (3 .. Arg'Last)));
Check_Regular_Expression (Arg (3 .. Arg'Last));
end if;
-- Junk switch starting with minus
elsif Arg (1) = '-' then
Fail ("wrong switch: " & Arg);
-- Not a recognized switch, assume file name
else
Canonical_Case_File_Name (Arg);
Patterns.Append
(Arguments.Table (Arguments.Last).Name_Patterns,
new String'(Arg));
Check_Regular_Expression (Arg);
end if;
end if;
end;
end loop;
end Scan_Args;
-----------
-- Usage --
-----------
procedure Usage is
begin
if not Usage_Output then
Usage_Needed := False;
Usage_Output := True;
Output.Write_Str ("Usage: ");
Osint.Write_Program_Name;
Output.Write_Line (" [switches] naming-pattern [naming-patterns]");
Output.Write_Line
(" {--and [switches] naming-pattern [naming-patterns]}");
Output.Write_Eol;
Output.Write_Line ("switches:");
Display_Usage_Version_And_Help;
Output.Write_Line
(" --subdirs=dir real obj/lib/exec dirs are subdirs");
Output.Write_Line
(" --no-backup do not create backup of project file");
Output.Write_Eol;
Output.Write_Line (" --and use different patterns");
Output.Write_Eol;
Output.Write_Line
(" -cfile create configuration pragmas file");
Output.Write_Line (" -ddir use dir as one of the source " &
"directories");
Output.Write_Line (" -Dfile get source directories from file");
Output.Write_Line
(" -eL follow symbolic links when processing " &
"project files");
Output.Write_Line (" -fpat foreign pattern");
Output.Write_Line
(" -gnateDsym=v preprocess with symbol definition");
Output.Write_Line (" -gnatep=data preprocess files with data file");
Output.Write_Line (" -h output this help message");
Output.Write_Line
(" -Pproj update or create project file proj");
Output.Write_Line (" -v verbose output");
Output.Write_Line (" -v -v very verbose output");
Output.Write_Line (" -xpat exclude pattern pat");
end if;
end Usage;
---------------
-- Write_Eol --
---------------
procedure Write_Eol is
begin
Write_A_String ((1 => ASCII.LF));
end Write_Eol;
--------------------
-- Write_A_String --
--------------------
procedure Write_A_String (S : String) is
Str : String (1 .. S'Length);
begin
if S'Length > 0 then
Str := S;
if Write (Output_FD, Str (1)'Address, Str'Length) /= Str'Length then
Fail_Program ("disk full");
end if;
end if;
end Write_A_String;
-- Start of processing for Gnatname
begin
-- Add the directory where gnatname is invoked in front of the
-- path, if gnatname is invoked with directory information.
declare
Command : constant String := Command_Name;
begin
for Index in reverse Command'Range loop
if Command (Index) = Directory_Separator then
declare
Absolute_Dir : constant String :=
Normalize_Pathname
(Command (Command'First .. Index));
PATH : constant String :=
Absolute_Dir &
Path_Separator &
Getenv ("PATH").all;
begin
Setenv ("PATH", PATH);
end;
exit;
end if;
end loop;
end;
-- Initialize tables
Arguments.Set_Last (0);
declare
New_Arguments : Argument_Data;
pragma Warnings (Off, New_Arguments);
-- Declaring this defaulted initialized object ensures that the new
-- allocated component of table Arguments is correctly initialized.
begin
Arguments.Append (New_Arguments);
end;
Patterns.Init (Arguments.Table (1).Directories);
Patterns.Set_Last (Arguments.Table (1).Directories, 0);
Patterns.Init (Arguments.Table (1).Name_Patterns);
Patterns.Set_Last (Arguments.Table (1).Name_Patterns, 0);
Patterns.Init (Arguments.Table (1).Excluded_Patterns);
Patterns.Set_Last (Arguments.Table (1).Excluded_Patterns, 0);
Patterns.Init (Arguments.Table (1).Foreign_Patterns);
Patterns.Set_Last (Arguments.Table (1).Foreign_Patterns, 0);
Preprocessor_Switches.Set_Last (0);
-- Get the arguments
Scan_Args;
if Create_Project then
declare
Gprname_Path : constant String_Access :=
Locate_Exec_On_Path ("gprname");
Arg_Len : Natural := Argument_Count;
Pos : Natural := 0;
Target : String_Access := null;
Success : Boolean := False;
begin
if Gprname_Path = null then
Fail_Program
("project files are no longer supported by gnatname;" &
" use gprname instead");
end if;
Find_Program_Name;
if Name_Len > 9
and then Name_Buffer (Name_Len - 7 .. Name_Len) = "gnatname"
then
Target := new String'(Name_Buffer (1 .. Name_Len - 9));
Arg_Len := Arg_Len + 1;
end if;
declare
Args : Argument_List (1 .. Arg_Len);
begin
if Target /= null then
Args (1) := new String'("--target=" & Target.all);
Pos := 1;
end if;
for J in 1 .. Argument_Count loop
Pos := Pos + 1;
Args (Pos) := new String'(Argument (J));
end loop;
Spawn (Gprname_Path.all, Args, Success);
if Success then
Exit_Program (E_Success);
else
Exit_Program (E_Errors);
end if;
end;
end;
end if;
if Opt.Verbose_Mode then
Output_Version;
end if;
if Usage_Needed then
Usage;
end if;
-- If no Ada or foreign pattern was specified, print the usage and return
if Patterns.Last (Arguments.Table (Arguments.Last).Name_Patterns) = 0
and then
Patterns.Last (Arguments.Table (Arguments.Last).Foreign_Patterns) = 0
then
if Argument_Count = 0 then
Usage;
elsif not Usage_Output then
Try_Help;
end if;
return;
end if;
-- If no source directory was specified, use the current directory as the
-- unique directory. Note that if a file was specified with directory
-- information, the current directory is the directory of the specified
-- file.
if Patterns.Last (Arguments.Table (Arguments.Last).Directories) = 0 then
Patterns.Append
(Arguments.Table (Arguments.Last).Directories, new String'("."));
end if;
-- Initialize
declare
Prep_Switches : Argument_List
(1 .. Integer (Preprocessor_Switches.Last));
begin
for Index in Prep_Switches'Range loop
Prep_Switches (Index) := Preprocessor_Switches.Table (Index);
end loop;
Initialize
(File_Path => File_Path.all,
Preproc_Switches => Prep_Switches);
end;
-- Process each section successively
for J in 1 .. Arguments.Last loop
declare
Directories : Argument_List
(1 .. Integer
(Patterns.Last (Arguments.Table (J).Directories)));
Name_Patterns : Regexp_List
(1 .. Integer
(Patterns.Last (Arguments.Table (J).Name_Patterns)));
Excl_Patterns : Regexp_List
(1 .. Integer
(Patterns.Last (Arguments.Table (J).Excluded_Patterns)));
Frgn_Patterns : Regexp_List
(1 .. Integer
(Patterns.Last (Arguments.Table (J).Foreign_Patterns)));
begin
-- Build the Directories and Patterns arguments
for Index in Directories'Range loop
Directories (Index) :=
Arguments.Table (J).Directories.Table (Index);
end loop;
for Index in Name_Patterns'Range loop
Name_Patterns (Index) :=
Compile
(Arguments.Table (J).Name_Patterns.Table (Index).all,
Glob => True);
end loop;
for Index in Excl_Patterns'Range loop
Excl_Patterns (Index) :=
Compile
(Arguments.Table (J).Excluded_Patterns.Table (Index).all,
Glob => True);
end loop;
for Index in Frgn_Patterns'Range loop
Frgn_Patterns (Index) :=
Compile
(Arguments.Table (J).Foreign_Patterns.Table (Index).all,
Glob => True);
end loop;
-- Call Prj.Makr.Process where the real work is done
Process
(Directories => Directories,
Name_Patterns => Name_Patterns,
Excluded_Patterns => Excl_Patterns,
Foreign_Patterns => Frgn_Patterns);
end;
end loop;
-- Finalize
Finalize;
if Opt.Verbose_Mode then
Output.Write_Eol;
end if;
end Gnatname;