author | Dario Sestito <darios@symbian.org> |
Fri, 09 Apr 2010 10:34:32 +0100 | |
changeset 961 | 94716c328941 |
parent 955 | 28714977dccb |
permissions | -rw-r--r-- |
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#!perl -w |
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# |
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# Copyright (c) 2010 Symbian Foundation Ltd |
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# This component and the accompanying materials are made available |
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# under the terms of the License "Eclipse Public License v1.0" |
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# which accompanies this distribution, and is available |
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# at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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# |
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# Initial Contributors: |
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# Symbian Foundation Ltd - initial contribution. |
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# |
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# Contributors: |
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# |
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# Description: |
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# Search physical drives to find either: |
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# * The one with the largest amount of free space |
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# * The one with the greatest capacity |
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# * The list of all such drives |
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|
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use strict; |
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use Getopt::Long; |
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use Win32::OLE; |
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# Read option arguments |
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my $option; |
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my $ok = GetOptions( |
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'capacity' => \$option->{capacity}, |
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'space' => \$option->{space}, |
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'all' => \$option->{all}, |
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'help|?' => \$option->{help}, |
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); |
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if (defined $option->{help}) |
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{ |
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usage(); |
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exit; |
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} |
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if (!$ok || @ARGV || 1 != scalar grep { defined $option->{$_} } keys %$option) |
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{ |
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warn "Exactly one option must be supplied to indicate the required output\n$ok\n@ARGV\n"; |
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usage(); |
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exit(1); |
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} |
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# Connect to WMI services on this machine (".") |
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my $wmiServices = Win32::OLE->GetObject( "winmgmts:{impersonationLevel=impersonate,(security)}//." ) or die; |
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# Get list of all volumes (drive letters) |
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my @volumes = Win32::OLE::in($wmiServices->InstancesOf( "Win32_LogicalDisk" )); |
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# Get list of substed drives |
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my %subst = map { (substr $_, 0, 2) => 1 } `subst`; |
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# Filter volumes to remove non-Partitions, and substed drives |
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@volumes = grep { $_->{DriveType} == 3 && !exists $subst{$_->{DeviceID}} } @volumes; |
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# Also remove the system drive (usually C:) unless it's the only drive in the box! |
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@volumes = grep { $_->{DeviceID} ne $ENV{SystemDrive} } @volumes if scalar(@volumes) > 1; |
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die "Unable to find any suitable drives at all\n" unless @volumes; |
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|
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if ($option->{all}) |
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{ |
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print join ",", map { $_->{DeviceID} } @volumes; |
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print "\n"; |
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} |
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elsif ($option->{capacity}) |
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{ |
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# Sort by capacity to find the largest volume and print out the corresponding letter |
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@volumes = reverse sort { $a->{Size} <=> $b->{Size} } @volumes; |
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print "$volumes[0]->{DeviceID}\n"; |
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} |
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elsif ($option->{space}) |
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{ |
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# Sort by space to find the volume with the largest amount of space and print out the corresponding letter |
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@volumes = reverse sort { $a->{FreeSpace} <=> $b->{FreeSpace} } @volumes; |
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print "$volumes[0]->{DeviceID}\n"; |
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} |
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exit; |
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sub usage |
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{ |
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$0 =~ m{[\\/]([^\\/]*)$}; |
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print <<EOT; |
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|
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Usage: $1 -all | -capacity | -space | -help |
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|
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-all Outputs all physical drives in the system (separated by ','). |
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-capacity Outputs physical drive of greatest capacity in the system. |
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-space Outputs physical drive with greatest free space in the system. |
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-help Outputs this help message. |
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EOT |
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} |
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94 |