xtm-utils/bin/xtmjoin
Glenn Y. Rolland be090694e2 xtmjoin: Progressbar & new naming pattern.
* Added progressbar display using ANSI sequences ;
* Handle a new naming pattern (.xtm.*) .
2010-11-09 11:13:45 +01:00

148 lines
3.1 KiB
Ruby
Executable file

#!/usr/bin/ruby
require 'optparse'
require 'rubygems'
require 'bindata'
require 'xtmfile/xtmheader'
class XtmJoin
class XtmJoinArgumentError < ArgumentError ; end
attr_reader :opts
BUFFER_MAX_SIZE = 4096 * 4096
def initialize args
@args = []
@input_filename = nil
parse_command_line args
end
def parse_command_line args
@args = args.clone
@opts = OptionParser.new do |opts|
opts.banner = "Usage: #{File.basename $0} [options]\n"
opts.separator ""
opts.separator "Mandatory options"
opts.on("-i", "--input FILE", "Input XTM file") do |r|
@input_filename = r
end
opts.separator ""
opts.separator "General options:"
opts.on("-h", "--help", "Show this help") do |h|
@help = h
end
opts.on("-v", "--verbose", "Show warnings too") do |v|
@verbose = v
end
opts.separator ""
end
end
def validate!
@opts.parse!
raise XtmJoinArgumentError, "No input XTM file specified!" if @input_filename.nil?
raise RuntimeError, "Current input XTM does not exist!" unless File.exist? @input_filename
raise RuntimeError, "Current input XTML is not a file!" unless File.file? @input_filename
@input_filename = File.expand_path @input_filename
end
def run
validate!
output_file = nil
# initial file
in_xtm = File.open @input_filename, "rb"
header = XtmHeader::read in_xtm
output_file = header.filename_str
puts "Writing data to %s" % output_file
# FIXME: prevent overwriting
out_xtm = File.open output_file, "wb"
cur_xtm = @input_filename
is_first = true
cur_size = header.filesize
print "\x1b[s"
while cur_size > 0 do
unless is_first then
cur_xtm = _nextfile cur_xtm
puts "Opening %s" % cur_xtm
in_xtm = File.open cur_xtm, "rb"
end
while cur_size > 0 and (not in_xtm.eof?) do
pcent = ((header.filesize - cur_size) * 100 / header.filesize)
STDOUT.print "\x1b[uProgress : %s %" % pcent
STDOUT.flush
read_size = if cur_size > BUFFER_MAX_SIZE then BUFFER_MAX_SIZE
else cur_size
end
buffer = in_xtm.read read_size
cur_size = cur_size - buffer.length
out_xtm.write buffer.slice(0, buffer.length)
end
is_first = false
in_xtm.close
end
out_xtm.close
STDOUT.puts ""
# remaining files
end
def _nextfile curfile
result = nil
cur_idx = 0
cur_len = 0
case curfile
when /\.([0-9]+)\.xtm$/ then
cur_idx = $1.to_i
cur_len = $1.length
next_idx = cur_idx + 1
result = curfile.gsub(/\.([0-9]+)\.xtm$/, ".%0#{cur_len}d.xtm" % next_idx)
when /\.xtm\.([0-9]+)$/ then
cur_idx = $1.to_i
cur_len = $1.length
next_idx = cur_idx + 1
result = curfile.gsub(/\.xtm\.([0-9]+)$/, ".xtm.%0#{cur_len}d" % next_idx)
else
raise "Unable to detect a naming patterng for file sequence!"
end
return result
end
def self.main args
xj = nil
begin
xj = XtmJoin.new args
xj.run
exit 0
rescue XtmJoinArgumentError => e
STDERR.puts "%s" % xj.opts
STDERR.puts "error: %s" % e.message
exit 1
rescue SystemExit => e
raise e
rescue Exception => e
STDERR.puts "error: %s" % e.message
exit 1
end
end
end
XtmJoin.main ARGV