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#!/usr/bin/env ruby
# Copyright (C) 2013, Eric Wong <normalperson@yhbt.net> and all contributors
# License: GPLv3 or later (https://www.gnu.org/licenses/gpl-3.0.txt)
require 'yaml'
require 'optparse'
require 'dtas/splitfx'
usage = "#$0 [-n|--dry-run][-j [JOBS]] SPLITFX_FILE.yml [TARGET]"
overrides = {} # FIXME: not tested
dryrun = false
jobs = 1
op = OptionParser.new('', 24, '  ') do |opts|
  opts.banner = usage
  opts.on('-n', '--dry-run') { dryrun = true }
  opts.on('-j', '--jobs [JOBS]', Integer) { |val| jobs = val }
  opts.parse!(ARGV)
end

args = []
ARGV.each do |arg|
  case arg
  when %r{\A(\w+)=(.*)\z}
    key, val = $1, $2
    # only one that makes sense is infile=another_file
    overrides[key] = YAML.load(val)
  when %r{\A(\w+)\.(\w+)=(.*)\z}
    # comments.ARTIST='blah'
    top, key, val = $1, $2, $3
    hsh = overrides[top] ||= {}
    hsh[key] = val
  else
    args << arg
  end
end

file = args.shift or abort usage
target = args.shift || "flac"
splitfx = DTAS::SplitFX.new
splitfx.import(YAML.load(File.read(file)), overrides)
splitfx.run(target, jobs, dryrun)