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2025-09-29 00:52:08 +02:00

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Ruby
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#
# File:: util/data_file_sizes.rb
# Description:: "Somewhat" equivalent to the GNU 'du' utility.
#
# Author:: David Muir <david.muir@rockstarnorth.com>
# Date:: 1 September 2009
#
#----------------------------------------------------------------------------
# Uses
#----------------------------------------------------------------------------
require 'pipeline/os/file'
require 'pipeline/os/getopt'
require 'pipeline/os/path'
include Pipeline
#----------------------------------------------------------------------------
# Constants
#----------------------------------------------------------------------------
OPTIONS = [
[ '--ignore', '-i', OS::Getopt::REQUIRED, 'ignore paths.' ],
[ '--kilobytes', '-k', OS::Getopt::BOOLEAN, 'change units to kilobytes.' ],
[ '--report', '-r', OS::Getopt::REQUIRED, 'write output report to file (tab delimited).' ],
[ '--debug', '-d', OS::Getopt::BOOLEAN, 'debug information.' ],
[ '--help', '-h', OS::Getopt::BOOLEAN, 'display usage information.' ]
]
TRAILING = { 'paths' => 'paths to produce file data sizes for.' }
#----------------------------------------------------------------------------
# Functions
#----------------------------------------------------------------------------
# Return the size (in bytes) of a path name (recursively)
def get_size( path )
throw ArgumentError.new( "Invalid path #{path}." ) \
unless ( File::exists?( path ) )
sizes = 0
if ( File::directory?( path ) ) then
size = 0
files = OS::FindEx::find_files_recurse( OS::Path::combine( path, '*.*' ) )
files.each do |filename|
size += File::size( filename )
end
sizes = size
elsif ( File::file?( path ) ) then
sizes = File::size?( path )
end
sizes
end
#----------------------------------------------------------------------------
# Implementation
#----------------------------------------------------------------------------
begin
g_Opts, g_Trailing = OS::Getopt::getopts( OPTIONS )
g_Kilobytes = g_Opts['kilobytes'].nil? ? false : true
g_Megabytes = ( not g_Kilobytes )
g_Debug = g_Opts['debug'].nil? ? false : true
if ( g_Opts['help'] or ( 0 == g_Trailing.size ) ) then
puts OS::Getopt::usage( OPTIONS )
exit( 1 )
end
g_Trailing.each do |filename|
filename = OS::Path::normalise( filename )
if ( not File::exists?( filename ) ) then
puts "ERROR: path #{filename} does not exist. Ignoring."
next
end
fullpath = File::expand_path( filename )
if ( File::directory?( fullpath ) ) then
puts "#{filename}\t#{get_size( fullpath ) / 1024}" if ( g_Kilobytes )
puts "#{filename}\t#{get_size( fullpath ) / 1024 / 1024}" if ( g_Megabytes )
elsif ( File::file?( fullpath ) ) then
puts "#{filename}\t#{get_size( fullpath ) / 1024}" if ( g_Kilobytes )
puts "#{filename}\t#{get_size( fullpath ) / 1024 / 1024}" if ( g_Megabytes )
end
end
rescue SystemExit => ex
exit( ex.status )
rescue Exception => ex
puts "Unhandled exception: #{ex.message}."
ex.backtrace.each do |m| puts m; end
end
# util/data_file_sizes.rb