File: gnatcoll-vfs_utils.adb

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------------------------------------------------------------------------------
--                             G N A T C O L L                              --
--                                                                          --
--                     Copyright (C) 2009-2017, AdaCore                     --
--                                                                          --
-- This library is free software;  you can redistribute it and/or modify it --
-- under terms of the  GNU General Public License  as published by the Free --
-- Software  Foundation;  either version 3,  or (at your  option) any later --
-- version. This library is distributed in the hope that it will be useful, --
-- but WITHOUT ANY WARRANTY;  without even the implied warranty of MERCHAN- --
-- TABILITY or FITNESS FOR A PARTICULAR PURPOSE.                            --
--                                                                          --
--                                                                          --
--                                                                          --
--                                                                          --
--                                                                          --
-- You should have received a copy of the GNU General Public License and    --
-- a copy of the GCC Runtime Library Exception along with this program;     --
-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
-- <http://www.gnu.org/licenses/>.                                          --
--                                                                          --
------------------------------------------------------------------------------

with Ada.Unchecked_Conversion;
with Ada.Directories; use Ada.Directories;

with GNATCOLL.Remote;    use GNATCOLL.Remote;
with GNATCOLL.Remote.Db; use GNATCOLL.Remote.Db;
with GNATCOLL.Utils;
with GNATCOLL.VFS_Types;

package body GNATCOLL.VFS_Utils is

   function Unchecked is new Ada.Unchecked_Conversion
     (String_Access, Filesystem_String_Access);

   ------------------------
   -- Normalize_Pathname --
   ------------------------

   function Normalize_Pathname
     (Name           : Filesystem_String;
      Directory      : Filesystem_String  := "";
      Resolve_Links  : Boolean := True;
      Case_Sensitive : Boolean := True)
      return Filesystem_String
   is
   begin
      return +Normalize_Pathname
        (+Name, +Directory, Resolve_Links,
         Case_Sensitive);
   end Normalize_Pathname;

   ----------------------
   -- Is_Absolute_Path --
   ----------------------

   function Is_Absolute_Path (Name : Filesystem_String) return Boolean is
   begin
      return Is_Absolute_Path (+Name);
   end Is_Absolute_Path;

   ---------------------
   -- Is_Regular_File --
   ---------------------

   function Is_Regular_File (Name : Filesystem_String) return Boolean is
   begin
      return Is_Regular_File (+Name);
   end Is_Regular_File;

   ------------------
   -- Is_Directory --
   ------------------

   function Is_Directory (Name : Filesystem_String) return Boolean is
   begin
      return Is_Directory (+Name);
   end Is_Directory;

   ---------------
   -- Copy_File --
   ---------------

   procedure Copy_File
     (Name     : Filesystem_String;
      Pathname : Filesystem_String;
      Success  : out Boolean;
      Mode     : Copy_Mode := Copy;
      Preserve : Attribute := Time_Stamps)
   is
   begin
      Copy_File (+Name, +Pathname, Success, Mode, Preserve);
   end Copy_File;

   ------------------
   -- Set_Writable --
   ------------------

   procedure Set_Writable (Name : Filesystem_String) is
   begin
      Set_Writable (+Name);
   end Set_Writable;

   ----------------------
   -- Set_Non_Writable --
   ----------------------

   procedure Set_Non_Writable (Name : Filesystem_String) is
   begin
      Set_Non_Writable (+Name);
   end Set_Non_Writable;

   ----------------------
   -- Create_Temp_File --
   ----------------------

   procedure Create_Temp_File
     (FD   : out File_Descriptor;
      Name : out Filesystem_String_Access)
   is
      R : String_Access;
   begin
      Create_Temp_File (FD, R);
      Name := Unchecked (R);
   end Create_Temp_File;

   --------------------
   -- File_Extension --
   --------------------

   function File_Extension
     (Path : Filesystem_String)
      return Filesystem_String
   is
   begin
      return +File_Extension (+Path);
   end File_Extension;

   ---------------------
   -- Get_Current_Dir --
   ---------------------

   function Get_Current_Dir return Filesystem_String is
   begin
      return +Get_Current_Dir;
   end Get_Current_Dir;

   -----------------------
   -- Name_As_Directory --
   -----------------------

   function Name_As_Directory
     (Name : Filesystem_String) return Filesystem_String is
   begin
      if +Name = "" then
         return "";
      end if;

      return Filesystem_String
        (GNATCOLL.Path.Ensure_Directory
           (GNATCOLL.Path.Local_FS, GNATCOLL.VFS_Types.FS_String (Name)));
   end Name_As_Directory;

   --------------
   -- Dir_Name --
   --------------

   function Dir_Name (Path : Filesystem_String) return Filesystem_String is
   begin
      return +Dir_Name (+Path);
   end Dir_Name;

   ---------------
   -- Base_Name --
   ---------------

   function Base_Name
     (Path   : Filesystem_String;
      Suffix : Filesystem_String := "")
      return Filesystem_String
   is
   begin
      return +Base_Name (+Path, +Suffix);
   end Base_Name;

   ----------------
   -- Change_Dir --
   ----------------

   procedure Change_Dir (Dir_Name : Filesystem_String) is
   begin
      Change_Dir (+Dir_Name);
   end Change_Dir;

   ---------------------
   -- Format_Pathname --
   ---------------------

   function Format_Pathname
     (Path  : Filesystem_String;
      Style : Path_Style := System_Default) return Filesystem_String
   is
   begin
      return +Format_Pathname (+Path, Style);
   end Format_Pathname;

   ----------
   -- Open --
   ----------

   procedure Open (Dir : out Dir_Type; Dir_Name : Filesystem_String) is
   begin
      Open (Dir, +Dir_Name);
   end Open;

   -------------------------
   -- Locate_Exec_On_Path --
   -------------------------

   function Locate_Exec_On_Path
     (Exec_Name : Filesystem_String) return Filesystem_String_Access
   is
      Val : String_Access := Locate_Exec_On_Path (+Exec_Name);
   begin
      if Val /= null then
         declare
            Ret : constant Filesystem_String_Access :=
                    new Filesystem_String'(+Val.all);
         begin
            Free (Val);
            return Ret;
         end;
      end if;

      return null;
   end Locate_Exec_On_Path;

   -------------------------
   -- Locate_Regular_File --
   -------------------------

   function Locate_Regular_File
     (File_Name : Filesystem_String;
      Path      : Filesystem_String) return Filesystem_String_Access
   is
      Val : String_Access := Locate_Regular_File (+File_Name, +Path);
      Ret : Filesystem_String_Access;
   begin
      if Val /= null then
         Ret := new Filesystem_String'(+Val.all);
         Free (Val);
         return Ret;
      else
         return null;
      end if;
   end Locate_Regular_File;

   -------------
   -- Compose --
   -------------

   function Compose
     (Containing_Directory : Filesystem_String := "";
      Name                 : Filesystem_String;
      Extension            : Filesystem_String := "")
      return Filesystem_String is
   begin
      return +Compose (+Containing_Directory, +Name, +Extension);
   end Compose;

   -----------------------
   -- Is_Case_Sensitive --
   -----------------------

   function Is_Case_Sensitive (Host : String) return Boolean is
      FS : GNATCOLL.VFS_Types.FS_Type;
   begin
      if Host = Local_Host then
         FS := GNATCOLL.Path.Local_FS;
      else
         FS := Get_Server (Host).Shell_FS;
      end if;

      return GNATCOLL.Path.Is_Case_Sensitive (FS);
   end Is_Case_Sensitive;

   ----------------
   -- File_Equal --
   ----------------

   function File_Equal (F1, F2 : Filesystem_String; Host : String)
                        return Boolean is
   begin
      return GNATCOLL.Utils.Equal (+F1, +F2, Is_Case_Sensitive (Host));
   end File_Equal;

end GNATCOLL.VFS_Utils;