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114 | -----------------------------------------------------------------------
-- are-installer-concat -- Concatenate based distribution artifact
-- Copyright (C) 2012, 2020, 2021 Stephane Carrez
-- Written by Stephane Carrez (Stephane.Carrez@gmail.com)
--
-- Licensed under the Apache License, Version 2.0 (the "License");
-- you may not use this file except in compliance with the License.
-- You may obtain a copy of the License at
--
-- http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
-----------------------------------------------------------------------
with Ada.Directories;
with Ada.Streams.Stream_IO;
with Ada.Exceptions;
with Ada.IO_Exceptions;
with Util.Log.Loggers;
with Util.Streams;
with Util.Streams.Files;
package body Are.Installer.Concat is
use Util.Log;
use type Ada.Calendar.Time;
Log : constant Loggers.Logger := Loggers.Create ("Are.Installer.Concat");
-- ------------------------------
-- Create a distribution rule to copy a set of files or directories.
-- ------------------------------
function Create_Rule (Node : in DOM.Core.Node) return Distrib_Rule_Access is
pragma Unreferenced (Node);
Result : constant Concat_Rule_Access := new Concat_Rule;
begin
return Result.all'Access;
end Create_Rule;
-- ------------------------------
-- Get a name to qualify the installation rule (used for logs).
-- ------------------------------
overriding
function Get_Install_Name (Rule : in Concat_Rule) return String is
pragma Unreferenced (Rule);
begin
return "concat";
end Get_Install_Name;
-- ------------------------------
-- Install the file <b>File</b> according to the distribution rule.
-- Concatenate the files listed in <b>Files</b> in the target path specified by <b>Path</b>.
-- ------------------------------
overriding
procedure Install (Rule : in Concat_Rule;
Path : in String;
Files : in File_Vector;
Context : in out Context_Type'Class) is
procedure Concat_File (File : in File_Record);
Target : constant String := Context.Get_Generation_Path (Path);
Dir : constant String := Ada.Directories.Containing_Directory (Target);
Output : Util.Streams.Files.File_Stream;
Modtime : Ada.Calendar.Time;
Has_Files : Boolean := False;
-- ------------------------------
-- Append the file to the output
-- ------------------------------
procedure Concat_File (File : in File_Record) is
File_Path : constant String := Rule.Get_Source_Path (File);
Input : Util.Streams.Files.File_Stream;
File_Time : Ada.Calendar.Time;
begin
if Rule.Level >= Util.Log.INFO_LEVEL then
Log.Info (" concat {0} to {1}", File_Path, Path);
end if;
File_Time := Ada.Directories.Modification_Time (File_Path);
if not Has_Files or else File_Time > Modtime then
Modtime := File_Time;
end if;
Has_Files := True;
Input.Open (Name => File_Path, Mode => Ada.Streams.Stream_IO.In_File);
Util.Streams.Copy (From => Input, Into => Output);
Input.Close;
exception
when Ex : Ada.IO_Exceptions.Name_Error =>
Context.Error ("cannot read {0}: ", File_Path,
Ada.Exceptions.Exception_Message (Ex));
end Concat_File;
Iter : File_Cursor := Files.First;
begin
Ada.Directories.Create_Path (Dir);
Output.Create (Name => Target, Mode => Ada.Streams.Stream_IO.Out_File);
while File_Record_Vectors.Has_Element (Iter) loop
File_Record_Vectors.Query_Element (Iter, Concat_File'Access);
File_Record_Vectors.Next (Iter);
end loop;
Output.Close;
if Has_Files then
Rule.Add_File (Path, Target, Modtime);
end if;
end Install;
end Are.Installer.Concat;
|