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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- T E M P D I R --
-- --
-- B o d y --
-- --
-- Copyright (C) 2003-2009, 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 GNAT.Directory_Operations; use GNAT.Directory_Operations;
with Hostparm; use Hostparm;
with Opt; use Opt;
with Output; use Output;
package body Tempdir is
Tmpdir_Needs_To_Be_Displayed : Boolean := True;
Tmpdir : constant String := "TMPDIR";
Gnutmpdir : constant String := "GNUTMPDIR";
No_Dir : aliased String := "";
Temp_Dir : String_Access := No_Dir'Access;
----------------------
-- Create_Temp_File --
----------------------
procedure Create_Temp_File
(FD : out File_Descriptor;
Name : out Path_Name_Type)
is
File_Name : String_Access;
Current_Dir : constant String := Get_Current_Dir;
function Directory return String;
-- Returns Temp_Dir.all if not empty, else return current directory
---------------
-- Directory --
---------------
function Directory return String is
begin
if Temp_Dir'Length /= 0 then
return Temp_Dir.all;
else
return Current_Dir;
end if;
end Directory;
-- Start of processing Tempdir
begin
if Temp_Dir'Length /= 0 then
-- In verbose mode, display once the value of TMPDIR, so that
-- if temp files cannot be created, it is easier to understand
-- where temp files are supposed to be created.
if Verbose_Mode and then Tmpdir_Needs_To_Be_Displayed then
Write_Str ("TMPDIR = """);
Write_Str (Temp_Dir.all);
Write_Line ("""");
Tmpdir_Needs_To_Be_Displayed := False;
end if;
-- Change directory to TMPDIR before creating the temp file,
-- then change back immediately to the previous directory.
Change_Dir (Temp_Dir.all);
Create_Temp_File (FD, File_Name);
Change_Dir (Current_Dir);
else
Create_Temp_File (FD, File_Name);
end if;
if FD = Invalid_FD then
Write_Line ("could not create temporary file in " & Directory);
Name := No_Path;
else
declare
Path_Name : constant String :=
Normalize_Pathname
(Directory & Directory_Separator & File_Name.all);
begin
Name_Len := Path_Name'Length;
Name_Buffer (1 .. Name_Len) := Path_Name;
Name := Name_Find;
Free (File_Name);
end;
end if;
end Create_Temp_File;
-- Start of elaboration for package Tempdir
begin
declare
Dir : String_Access;
begin
-- On VMS, if GNUTMPDIR is defined, use it
if OpenVMS then
Dir := Getenv (Gnutmpdir);
-- Otherwise, if GNUTMPDIR is not defined, try TMPDIR
if Dir'Length = 0 then
Dir := Getenv (Tmpdir);
end if;
else
Dir := Getenv (Tmpdir);
end if;
if Dir'Length > 0 and then
Is_Absolute_Path (Dir.all) and then
Is_Directory (Dir.all)
then
Temp_Dir := new String'(Normalize_Pathname (Dir.all));
end if;
Free (Dir);
end;
end Tempdir;
|
