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|
------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- C L E A N --
-- --
-- B o d y --
-- --
-- Copyright (C) 2003-2023, 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 ALI; use ALI;
with Make_Util; use Make_Util;
with Namet; use Namet;
with Opt; use Opt;
with Osint; use Osint;
with Osint.M; use Osint.M;
with Switch; use Switch;
with Table;
with Targparm;
with Types; use Types;
with Ada.Command_Line; use Ada.Command_Line;
with GNAT.Command_Line; use GNAT.Command_Line;
with GNAT.Directory_Operations; use GNAT.Directory_Operations;
with GNAT.IO; use GNAT.IO;
with GNAT.OS_Lib; use GNAT.OS_Lib;
package body Clean is
-- Suffixes of various files
Assembly_Suffix : constant String := ".s";
Tree_Suffix : constant String := ".adt";
Object_Suffix : constant String := Get_Target_Object_Suffix.all;
Debug_Suffix : constant String := ".dg";
Repinfo_Suffix : constant String := ".rep";
-- Suffix of representation info files
B_Start : constant String := "b~";
-- Prefix of binder generated file, and number of actual characters used
Object_Directory_Path : String_Access := null;
-- The path name of the object directory, set with switch -D
Force_Deletions : Boolean := False;
-- Set to True by switch -f. When True, attempts to delete non writable
-- files will be done.
Do_Nothing : Boolean := False;
-- Set to True when switch -n is specified. When True, no file is deleted.
-- gnatclean only lists the files that would have been deleted if the
-- switch -n had not been specified.
File_Deleted : Boolean := False;
-- Set to True if at least one file has been deleted
Copyright_Displayed : Boolean := False;
Usage_Displayed : Boolean := False;
Project_File_Name : String_Access := null;
package Sources is new Table.Table
(Table_Component_Type => File_Name_Type,
Table_Index_Type => Natural,
Table_Low_Bound => 0,
Table_Initial => 10,
Table_Increment => 100,
Table_Name => "Clean.Processed_Projects");
-- Table to store all the source files of a library unit: spec, body and
-- subunits, to detect .dg files and delete them.
-----------------------------
-- Other local subprograms --
-----------------------------
function Assembly_File_Name (Source : File_Name_Type) return String;
-- Returns the assembly file name corresponding to Source
procedure Clean_Executables;
-- Do the cleaning work when no project file is specified
function Debug_File_Name (Source : File_Name_Type) return String;
-- Name of the expanded source file corresponding to Source
procedure Delete (In_Directory : String; File : String);
-- Delete one file, or list the file name if switch -n is specified
procedure Delete_Binder_Generated_Files
(Dir : String;
Source : File_Name_Type);
-- Delete the binder generated file in directory Dir for Source, if they
-- exist: for Unix these are b~<source>.ads, b~<source>.adb,
-- b~<source>.ali and b~<source>.o.
procedure Display_Copyright;
-- Display the Copyright notice. If called several times, display the
-- Copyright notice only the first time.
procedure Initialize;
-- Call the necessary package initializations
function Object_File_Name (Source : File_Name_Type) return String;
-- Returns the object file name corresponding to Source
procedure Parse_Cmd_Line;
-- Parse the command line
function Repinfo_File_Name (Source : File_Name_Type) return String;
-- Returns the repinfo file name corresponding to Source
function Tree_File_Name (Source : File_Name_Type) return String;
-- Returns the tree file name corresponding to Source
procedure Usage;
-- Display the usage. If called several times, the usage is displayed only
-- the first time.
------------------------
-- Assembly_File_Name --
------------------------
function Assembly_File_Name (Source : File_Name_Type) return String is
Src : constant String := Get_Name_String (Source);
begin
-- If the source name has an extension, then replace it with
-- the assembly suffix.
for Index in reverse Src'First + 1 .. Src'Last loop
if Src (Index) = '.' then
return Src (Src'First .. Index - 1) & Assembly_Suffix;
end if;
end loop;
-- If there is no dot, or if it is the first character, just add the
-- assembly suffix.
return Src & Assembly_Suffix;
end Assembly_File_Name;
-----------------------
-- Clean_Executables --
-----------------------
procedure Clean_Executables is
Main_Source_File : File_Name_Type;
-- Current main source
Main_Lib_File : File_Name_Type;
-- ALI file of the current main
Lib_File : File_Name_Type;
-- Current ALI file
Full_Lib_File : File_Name_Type;
-- Full name of the current ALI file
Text : Text_Buffer_Ptr;
The_ALI : ALI_Id;
Found : Boolean;
Source : Queue.Source_Info;
begin
Queue.Initialize;
-- It does not really matter if there is or not an object file
-- corresponding to an ALI file: if there is one, it will be deleted.
Opt.Check_Object_Consistency := False;
-- Proceed each executable one by one. Each source is marked as it is
-- processed, so common sources between executables will not be
-- processed several times.
for N_File in 1 .. Osint.Number_Of_Files loop
Main_Source_File := Next_Main_Source;
Main_Lib_File :=
Osint.Lib_File_Name (Main_Source_File, Current_File_Index);
if Main_Lib_File /= No_File then
Queue.Insert
((File => Main_Lib_File,
Unit => No_Unit_Name,
Index => 0));
end if;
while not Queue.Is_Empty loop
Sources.Set_Last (0);
Queue.Extract (Found, Source);
pragma Assert (Found);
pragma Assert (Source.File /= No_File);
Lib_File := Source.File;
Full_Lib_File := Osint.Full_Lib_File_Name (Lib_File);
-- If we have existing ALI file that is not read-only, process it
if Full_Lib_File /= No_File
and then not Is_Readonly_Library (Full_Lib_File)
then
Text := Read_Library_Info (Lib_File);
if Text /= null then
The_ALI :=
Scan_ALI (Lib_File, Text, Err => True);
Free (Text);
-- If no error was produced while loading this ALI file,
-- insert into the queue all the unmarked withed sources.
if The_ALI /= No_ALI_Id then
for J in ALIs.Table (The_ALI).First_Unit ..
ALIs.Table (The_ALI).Last_Unit
loop
Sources.Increment_Last;
Sources.Table (Sources.Last) :=
ALI.Units.Table (J).Sfile;
for K in ALI.Units.Table (J).First_With ..
ALI.Units.Table (J).Last_With
loop
if Withs.Table (K).Afile /= No_File then
Queue.Insert
((File => Withs.Table (K).Afile,
Unit => No_Unit_Name,
Index => 0));
end if;
end loop;
end loop;
-- Look for subunits and put them in the Sources table
for J in ALIs.Table (The_ALI).First_Sdep ..
ALIs.Table (The_ALI).Last_Sdep
loop
if Sdep.Table (J).Subunit_Name /= No_Name then
Sources.Increment_Last;
Sources.Table (Sources.Last) :=
Sdep.Table (J).Sfile;
end if;
end loop;
end if;
end if;
-- Now delete all existing files corresponding to this ALI file
declare
Obj_Dir : constant String :=
Dir_Name (Get_Name_String (Full_Lib_File));
Obj : constant String := Object_File_Name (Lib_File);
Adt : constant String := Tree_File_Name (Lib_File);
Asm : constant String := Assembly_File_Name (Lib_File);
begin
Delete (Obj_Dir, Get_Name_String (Lib_File));
if Is_Regular_File (Obj_Dir & Dir_Separator & Obj) then
Delete (Obj_Dir, Obj);
end if;
if Is_Regular_File (Obj_Dir & Dir_Separator & Adt) then
Delete (Obj_Dir, Adt);
end if;
if Is_Regular_File (Obj_Dir & Dir_Separator & Asm) then
Delete (Obj_Dir, Asm);
end if;
-- Delete expanded source files (.dg) and/or repinfo files
-- (.rep) if any
for J in 1 .. Sources.Last loop
declare
Deb : constant String :=
Debug_File_Name (Sources.Table (J));
Rep : constant String :=
Repinfo_File_Name (Sources.Table (J));
begin
if Is_Regular_File (Obj_Dir & Dir_Separator & Deb) then
Delete (Obj_Dir, Deb);
end if;
if Is_Regular_File (Obj_Dir & Dir_Separator & Rep) then
Delete (Obj_Dir, Rep);
end if;
end;
end loop;
end;
end if;
end loop;
-- Delete the executable, if it exists, and the binder generated
-- files, if any.
if not Compile_Only then
declare
Source : constant File_Name_Type :=
Strip_Suffix (Main_Lib_File);
Executable : constant String :=
Get_Name_String (Executable_Name (Source));
begin
if Is_Regular_File (Executable) then
Delete ("", Executable);
end if;
Delete_Binder_Generated_Files (Get_Current_Dir, Source);
end;
end if;
end loop;
end Clean_Executables;
---------------------
-- Debug_File_Name --
---------------------
function Debug_File_Name (Source : File_Name_Type) return String is
begin
return Get_Name_String (Source) & Debug_Suffix;
end Debug_File_Name;
------------
-- Delete --
------------
procedure Delete (In_Directory : String; File : String) is
Full_Name : String (1 .. In_Directory'Length + File'Length + 1);
Last : Natural := 0;
Success : Boolean;
begin
-- Indicate that at least one file is deleted or is to be deleted
File_Deleted := True;
-- Build the path name of the file to delete
Last := In_Directory'Length;
Full_Name (1 .. Last) := In_Directory;
if Last > 0 and then Full_Name (Last) /= Directory_Separator then
Last := Last + 1;
Full_Name (Last) := Directory_Separator;
end if;
Full_Name (Last + 1 .. Last + File'Length) := File;
Last := Last + File'Length;
-- If switch -n was used, simply output the path name
if Do_Nothing then
Put_Line (Full_Name (1 .. Last));
-- Otherwise, delete the file if it is writable
else
if Force_Deletions
or else Is_Writable_File (Full_Name (1 .. Last))
or else Is_Symbolic_Link (Full_Name (1 .. Last))
then
Delete_File (Full_Name (1 .. Last), Success);
-- Here if no deletion required
else
Success := False;
end if;
if Verbose_Mode or else not Quiet_Output then
if not Success then
Put ("Warning: """);
Put (Full_Name (1 .. Last));
Put_Line (""" could not be deleted");
else
Put ("""");
Put (Full_Name (1 .. Last));
Put_Line (""" has been deleted");
end if;
end if;
end if;
end Delete;
-----------------------------------
-- Delete_Binder_Generated_Files --
-----------------------------------
procedure Delete_Binder_Generated_Files
(Dir : String;
Source : File_Name_Type)
is
Source_Name : constant String := Get_Name_String (Source);
Current : constant String := Get_Current_Dir;
Last : constant Positive := B_Start'Length + Source_Name'Length;
File_Name : String (1 .. Last + 4);
begin
Change_Dir (Dir);
-- Build the file name (before the extension)
File_Name (1 .. B_Start'Length) := B_Start;
File_Name (B_Start'Length + 1 .. Last) := Source_Name;
-- Spec
File_Name (Last + 1 .. Last + 4) := ".ads";
if Is_Regular_File (File_Name (1 .. Last + 4)) then
Delete (Dir, File_Name (1 .. Last + 4));
end if;
-- Body
File_Name (Last + 1 .. Last + 4) := ".adb";
if Is_Regular_File (File_Name (1 .. Last + 4)) then
Delete (Dir, File_Name (1 .. Last + 4));
end if;
-- ALI file
File_Name (Last + 1 .. Last + 4) := ".ali";
if Is_Regular_File (File_Name (1 .. Last + 4)) then
Delete (Dir, File_Name (1 .. Last + 4));
end if;
-- Object file
File_Name (Last + 1 .. Last + Object_Suffix'Length) := Object_Suffix;
if Is_Regular_File (File_Name (1 .. Last + Object_Suffix'Length)) then
Delete (Dir, File_Name (1 .. Last + Object_Suffix'Length));
end if;
-- Change back to previous directory
Change_Dir (Current);
end Delete_Binder_Generated_Files;
-----------------------
-- Display_Copyright --
-----------------------
procedure Display_Copyright is
begin
if not Copyright_Displayed then
Copyright_Displayed := True;
Display_Version ("GNATCLEAN", "2003");
end if;
end Display_Copyright;
---------------
-- Gnatclean --
---------------
procedure Gnatclean is
begin
-- Do the necessary initializations
Clean.Initialize;
-- Parse the command line, getting the switches and the executable names
Parse_Cmd_Line;
if Verbose_Mode then
Display_Copyright;
end if;
Osint.Add_Default_Search_Dirs;
Targparm.Get_Target_Parameters;
if Osint.Number_Of_Files = 0 then
if Argument_Count = 0 then
Usage;
else
Try_Help;
end if;
return;
end if;
if Verbose_Mode then
New_Line;
end if;
if Project_File_Name /= null then
declare
Gprclean_Path : constant String_Access :=
Locate_Exec_On_Path ("gprclean");
Arg_Len : Natural := Argument_Count;
Pos : Natural := 0;
Target : String_Access := null;
Success : Boolean := False;
begin
if Gprclean_Path = null then
Fail_Program
("project files are no longer supported by gnatclean;" &
" use gprclean instead");
end if;
Find_Program_Name;
if Name_Len > 10
and then Name_Buffer (Name_Len - 8 .. Name_Len) = "gnatclean"
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 (Gprclean_Path.all, Args, Success);
if Success then
Exit_Program (E_Success);
else
Exit_Program (E_Errors);
end if;
end;
end;
end if;
Clean_Executables;
-- In verbose mode, if Delete has not been called, indicate that no file
-- needs to be deleted.
if Verbose_Mode and not File_Deleted then
New_Line;
if Do_Nothing then
Put_Line ("No file needs to be deleted");
else
Put_Line ("No file has been deleted");
end if;
end if;
end Gnatclean;
----------------
-- Initialize --
----------------
procedure Initialize is
begin
-- Reset global variables
Free (Object_Directory_Path);
Do_Nothing := False;
File_Deleted := False;
Copyright_Displayed := False;
Usage_Displayed := False;
end Initialize;
----------------------
-- Object_File_Name --
----------------------
function Object_File_Name (Source : File_Name_Type) return String is
Src : constant String := Get_Name_String (Source);
begin
-- If the source name has an extension, then replace it with
-- the Object suffix.
for Index in reverse Src'First + 1 .. Src'Last loop
if Src (Index) = '.' then
return Src (Src'First .. Index - 1) & Object_Suffix;
end if;
end loop;
-- If there is no dot, or if it is the first character, just add the
-- ALI suffix.
return Src & Object_Suffix;
end Object_File_Name;
--------------------
-- Parse_Cmd_Line --
--------------------
procedure Parse_Cmd_Line is
Last : constant Natural := Argument_Count;
Index : Positive;
Source_Index : Int := 0;
procedure Check_Version_And_Help is new Check_Version_And_Help_G (Usage);
begin
-- First, check for --version and --help
Check_Version_And_Help ("GNATCLEAN", "2003");
-- First, check for switch -P and, if found and gprclean is available,
-- silently invoke gprclean, with switch --target if not on a native
-- platform.
declare
Arg_Len : Positive := Argument_Count;
Call_Gprclean : Boolean := False;
Gprclean : String_Access := null;
Pos : Natural := 0;
Success : Boolean;
Target : String_Access := null;
begin
Find_Program_Name;
if Name_Len >= 9
and then Name_Buffer (Name_Len - 8 .. Name_Len) = "gnatclean"
then
if Name_Len > 9 then
Target := new String'(Name_Buffer (1 .. Name_Len - 10));
Arg_Len := Arg_Len + 1;
end if;
for J in 1 .. Argument_Count loop
declare
Arg : constant String := Argument (J);
begin
if Arg'Length >= 2
and then Arg (Arg'First .. Arg'First + 1) = "-P"
then
Call_Gprclean := True;
exit;
end if;
end;
end loop;
if Call_Gprclean then
Gprclean := Locate_Exec_On_Path (Exec_Name => "gprclean");
if Gprclean /= null then
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 (Gprclean.all, Args, Success);
Free (Gprclean);
if Success then
Exit_Program (E_Success);
else
Exit_Program (E_Fatal);
end if;
end;
end if;
end if;
end if;
end;
Index := 1;
while Index <= Last loop
declare
Arg : constant String := Argument (Index);
procedure Bad_Argument;
pragma No_Return (Bad_Argument);
-- Signal bad argument
------------------
-- Bad_Argument --
------------------
procedure Bad_Argument is
begin
Fail ("invalid argument """ & Arg & """");
end Bad_Argument;
begin
if Arg'Length /= 0 then
if Arg (1) = '-' then
if Arg'Length = 1 then
Bad_Argument;
end if;
case Arg (2) is
when '-' =>
if Arg'Length > Subdirs_Option'Length
and then
Arg (1 .. Subdirs_Option'Length) = Subdirs_Option
then
null;
-- Subdirs are only used in gprclean
elsif Arg = Make_Util.Unchecked_Shared_Lib_Imports then
Opt.Unchecked_Shared_Lib_Imports := True;
else
Bad_Argument;
end if;
when 'a' =>
if Arg'Length < 4 then
Bad_Argument;
end if;
if Arg (3) = 'O' then
Add_Lib_Search_Dir (Arg (4 .. Arg'Last));
elsif Arg (3) = 'P' then
null;
-- This is only for gprclean
else
Bad_Argument;
end if;
when 'c' =>
Compile_Only := True;
when 'D' =>
if Object_Directory_Path /= null then
Fail ("duplicate -D switch");
elsif Project_File_Name /= null then
Fail ("-P and -D cannot be used simultaneously");
end if;
if Arg'Length > 2 then
declare
Dir : constant String := Arg (3 .. Arg'Last);
begin
if not Is_Directory (Dir) then
Fail (Dir & " is not a directory");
else
Add_Lib_Search_Dir (Dir);
end if;
end;
else
if Index = Last then
Fail ("no directory specified after -D");
end if;
Index := Index + 1;
declare
Dir : constant String := Argument (Index);
begin
if not Is_Directory (Dir) then
Fail (Dir & " is not a directory");
else
Add_Lib_Search_Dir (Dir);
end if;
end;
end if;
when 'e' =>
if Arg = "-eL" then
Follow_Links_For_Files := True;
Follow_Links_For_Dirs := True;
else
Bad_Argument;
end if;
when 'f' =>
Force_Deletions := True;
Directories_Must_Exist_In_Projects := False;
when 'F' =>
Full_Path_Name_For_Brief_Errors := True;
when 'h' =>
Usage;
when 'i' =>
if Arg'Length = 2 then
Bad_Argument;
end if;
Source_Index := 0;
for J in 3 .. Arg'Last loop
if Arg (J) not in '0' .. '9' then
Bad_Argument;
end if;
Source_Index :=
(20 * Source_Index) +
(Character'Pos (Arg (J)) - Character'Pos ('0'));
end loop;
when 'I' =>
if Arg = "-I-" then
Opt.Look_In_Primary_Dir := False;
else
if Arg'Length = 2 then
Bad_Argument;
end if;
Add_Lib_Search_Dir (Arg (3 .. Arg'Last));
end if;
when 'n' =>
Do_Nothing := True;
when 'P' =>
if Project_File_Name /= null then
Fail ("multiple -P switches");
elsif Object_Directory_Path /= null then
Fail ("-D and -P cannot be used simultaneously");
end if;
if Arg'Length > 2 then
declare
Prj : constant String := Arg (3 .. Arg'Last);
begin
if Prj'Length > 1
and then Prj (Prj'First) = '='
then
Project_File_Name :=
new String'
(Prj (Prj'First + 1 .. Prj'Last));
else
Project_File_Name := new String'(Prj);
end if;
end;
else
if Index = Last then
Fail ("no project specified after -P");
end if;
Index := Index + 1;
Project_File_Name := new String'(Argument (Index));
end if;
when 'q' =>
Quiet_Output := True;
when 'r' =>
null;
-- This is only for gprclean
when 'v' =>
if Arg = "-v" then
Verbose_Mode := True;
elsif Arg = "-vP0"
or else Arg = "-vP1"
or else Arg = "-vP2"
then
null;
-- This is only for gprclean
else
Bad_Argument;
end if;
when 'X' =>
if Arg'Length = 2 then
Bad_Argument;
end if;
when others =>
Bad_Argument;
end case;
else
Add_File (Arg, Source_Index);
end if;
end if;
end;
Index := Index + 1;
end loop;
end Parse_Cmd_Line;
-----------------------
-- Repinfo_File_Name --
-----------------------
function Repinfo_File_Name (Source : File_Name_Type) return String is
begin
return Get_Name_String (Source) & Repinfo_Suffix;
end Repinfo_File_Name;
--------------------
-- Tree_File_Name --
--------------------
function Tree_File_Name (Source : File_Name_Type) return String is
Src : constant String := Get_Name_String (Source);
begin
-- If source name has an extension, then replace it with the tree suffix
for Index in reverse Src'First + 1 .. Src'Last loop
if Src (Index) = '.' then
return Src (Src'First .. Index - 1) & Tree_Suffix;
end if;
end loop;
-- If there is no dot, or if it is the first character, just add the
-- tree suffix.
return Src & Tree_Suffix;
end Tree_File_Name;
-----------
-- Usage --
-----------
procedure Usage is
begin
if not Usage_Displayed then
Usage_Displayed := True;
Display_Copyright;
Put_Line ("Usage: gnatclean [switches] {[-innn] name}");
New_Line;
Display_Usage_Version_And_Help;
Put_Line (" names is one or more file names from which " &
"the .adb or .ads suffix may be omitted");
Put_Line (" names may be omitted if -P<project> is specified");
New_Line;
Put_Line (" --subdirs=dir real obj/lib/exec dirs are subdirs");
Put_Line (" " & Make_Util.Unchecked_Shared_Lib_Imports);
Put_Line (" Allow shared libraries to import static libraries");
New_Line;
Put_Line (" -c Only delete compiler generated files");
Put_Line (" -D dir Specify dir as the object library");
Put_Line (" -eL Follow symbolic links when processing " &
"project files");
Put_Line (" -f Force deletions of unwritable files");
Put_Line (" -F Full project path name " &
"in brief error messages");
Put_Line (" -h Display this message");
Put_Line (" -innn Index of unit in source for following names");
Put_Line (" -n Nothing to do: only list files to delete");
Put_Line (" -Pproj Use GNAT Project File proj");
Put_Line (" -q Be quiet/terse");
Put_Line (" -r Clean all projects recursively");
Put_Line (" -v Verbose mode");
Put_Line (" -vPx Specify verbosity when parsing " &
"GNAT Project Files");
Put_Line (" -Xnm=val Specify an external reference " &
"for GNAT Project Files");
New_Line;
Put_Line (" -aPdir Add directory dir to project search path");
New_Line;
Put_Line (" -aOdir Specify ALI/object files search path");
Put_Line (" -Idir Like -aOdir");
Put_Line (" -I- Don't look for source/library files " &
"in the default directory");
New_Line;
end if;
end Usage;
end Clean;
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