Remove SWRaid method as it is no longer needed (#678379)

Active Linux software RAID devices are detected in the
Proc_Partitions_Info method.  Hence the SWRaid method is no longer
required.

Removal of the SWRaid method fixes the problem with the error message:

  Could not stat device /dev/md/0 - No such file or directory

This fixes the problem because we no longer use "mdadm --examine
--scan" in an attempt to detect Linux software RAID devices.  The
mdadm command was returning device names such as /dev/md/0, which are
incorrect for GParted.

NOTE:  With this change, GParted no longer requires the mdadm command
       to detect Linux software RAID devices.

Closes Bug #678379 - Could not stat device /dev/md/0 - No such file or
                     directory

README

@@ -149,10 +149,6 @@ Optional packages include:
             package before that.
 
 
-For Linux software RAID support, the following package is required:
-   mdadm           - tool to administer Linux MD arrays
-
-
 For dmraid support, the following packages are required:
 
    dmsetup         - removes /dev/mapper entries

include/Makefile.am

@@ -34,7 +34,6 @@ EXTRA_DIST = \
 	OperationLabelPartition.h	\
 	Partition.h  			\
 	Proc_Partitions_Info.h	\
-	SWRaid.h				\
 	TreeView_Detail.h 		\
 	Utils.h 			\
 	Win_GParted.h 			\

include/SWRaid.h

@@ -1,55 +0,0 @@
-/* Copyright (C) 2009 Curtis Gedak
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU Library General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-/* READ THIS!
- * This class was created in an effort to reduce the complexity of the
- * GParted_Core class.
- * This class provides support for Linux software RAID devices (mdadm).
- * Static elements are used in order to reduce the disk accesses required to
- * load the data structures upon each initialization of the class.
- */
-
-#ifndef SWRAID_H_
-#define SWRAID_H_
-
-#include "../include/Utils.h"
-
-#include <vector>
-
-namespace GParted
-{
-
-
-class SWRaid
-{
-public:
-	SWRaid() ;
-	SWRaid( const bool & do_refresh ) ;
-	~SWRaid() ;
-	bool is_swraid_supported() ;
-	void get_devices( std::vector<Glib::ustring> & swraid_devices ) ;
-private:
-	void load_swraid_cache() ;
-	void set_commands_found() ;
-	static bool swraid_cache_initialized ;
-	static bool mdadm_found ;
-	static std::vector<Glib::ustring> swraid_devices ;
-};
-
-}//GParted
-
-#endif /* SWRAID_H_ */

src/GParted_Core.cc

@@ -19,7 +19,6 @@
 #include "../include/Win_GParted.h"
 #include "../include/GParted_Core.h"
 #include "../include/DMRaid.h"
-#include "../include/SWRaid.h"
 #include "../include/FS_Info.h"
 #include "../include/LVM2_PV_Info.h"
 #include "../include/OperationCopy.h"
@@ -144,7 +143,6 @@ void GParted_Core::set_devices( std::vector<Device> & devices )
 	Proc_Partitions_Info pp_info( true ) ;  //Refresh cache of proc partition information
 	FS_Info fs_info( true ) ;  //Refresh cache of file system information
 	DMRaid dmraid( true ) ;    //Refresh cache of dmraid device information
-	SWRaid swraid( true ) ;    //Refresh cache of swraid device information
 	LVM2_PV_Info lvm2_pv_info( true ) ;	//Refresh cache of LVM2 PV information
 	
 	init_maps() ;
@@ -171,16 +169,6 @@ void GParted_Core::set_devices( std::vector<Device> & devices )
 				ped_device_get( temp_devices[ k ] .c_str() ) ;
 			}
 
-			//Try to find all swraid devices
-			if (swraid .is_swraid_supported() ) {
-				std::vector<Glib::ustring> swraid_devices ;
-				swraid .get_devices( swraid_devices ) ;
-				for ( unsigned int k=0; k < swraid_devices .size(); k++ ) {
-					set_thread_status_message( String::ucompose ( _("Scanning %1"), swraid_devices[k] ) ) ;
-					ped_device_get( swraid_devices[k] .c_str() ) ;
-				}
-			}
-
 			//Try to find all dmraid devices
 			if (dmraid .is_dmraid_supported() ) {
 				std::vector<Glib::ustring> dmraid_devices ;

src/Makefile.am

@@ -44,7 +44,6 @@ gpartedbin_SOURCES = \
 	OperationLabelPartition.cc	\
 	Partition.cc			\
 	Proc_Partitions_Info.cc		\
-	SWRaid.cc				\
 	TreeView_Detail.cc		\
 	Utils.cc			\
 	Win_GParted.cc			\

src/SWRaid.cc

@@ -1,104 +0,0 @@
-/* Copyright (C) 2009 Curtis Gedak
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU Library General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#include "../include/SWRaid.h"
-
-namespace GParted
-{
-
-//Initialize static data elements
-bool SWRaid::swraid_cache_initialized = false ;
-bool SWRaid::mdadm_found  = false ;
-std::vector<Glib::ustring> SWRaid::swraid_devices ;
-
-SWRaid::SWRaid()
-{
-	//Ensure that cache has been loaded at least once
-	if ( ! swraid_cache_initialized )
-	{
-		swraid_cache_initialized = true ;
-		set_commands_found() ;
-		load_swraid_cache() ;
-	}
-}
-
-SWRaid::SWRaid( const bool & do_refresh )
-{
-	//Ensure that cache has been loaded at least once
-	if ( ! swraid_cache_initialized )
-	{
-		swraid_cache_initialized = true ;
-		set_commands_found() ;
-		if ( do_refresh == false )
-			load_swraid_cache() ;
-	}
-
-	if ( do_refresh )
-		load_swraid_cache() ;
-}
-
-SWRaid::~SWRaid()
-{
-}
-
-void SWRaid::load_swraid_cache()
-{
-	//Load data into swraid structures
-	Glib::ustring output, error ;
-	swraid_devices .clear() ;
-
-	if ( mdadm_found )
-	{
-		if ( ! Utils::execute_command( "mdadm --examine --scan", output, error, true ) )
-		{
-			if ( output .size() > 0 )
-			{
-				std::vector<Glib::ustring> temp_arr ;
-				Utils::tokenize( output, temp_arr, "\n" ) ;
-				for ( unsigned int k = 0; k < temp_arr .size(); k++ )
-				{
-					Glib::ustring temp = Utils::regexp_label( temp_arr[k], "^[^/]*(/dev/[^\t ]*)" ) ;
-					if ( temp .size() > 0 )
-						swraid_devices .push_back( temp ) ;
-				}
-			}
-		}
-	}
-}
-
-void SWRaid::set_commands_found()
-{
-	//Set status of commands found 
-	mdadm_found = (! Glib::find_program_in_path( "mdadm" ) .empty() ) ;
-}
-
-bool SWRaid::is_swraid_supported()
-{
-	//Determine if Linux software RAID is supported
-	return ( mdadm_found ) ;
-}
-
-void SWRaid::get_devices( std::vector<Glib::ustring> & device_list )
-{
-	//Retrieve list of Linux software RAID devices
-	device_list .clear() ;
-
-	for ( unsigned int k=0; k < swraid_devices .size(); k++ )
-		device_list .push_back( swraid_devices[k] ) ;
-}
-
-}//GParted