#-----------------------------------------------------------------
# constants
#-----------------------------------------------------------------
-$cd_dev = "/dev/cdrom"
+$children = Hash.new
#-----------------------------------------------------------------
# functions
#-----------------------------------------------------------------
def my_system(cmd)
puts cmd
- system(cmd) unless $opts.dry_run
+ system(cmd) unless $opts.dry_run == true
($?.exitstatus == 0) or raise "#{cmd} failed"
end
def get_number_of_tracks_on_cd
look_for_tracks = false
- IO.popen("cdda2wav -v summary -J dev=#{$cd_dev} 2>&1", "r") do |io|
+ lines = Array.new
+ IO.popen("cdda2wav -v summary -J dev=#{$opts.cd_dev} 2>&1", "r") do |io|
io.readlines.each do |line|
line.chomp!
+ lines << line
if (line =~ /^AUDIOtrack/) then
look_for_tracks = true
elsif (look_for_tracks == true) then
look_for_tracks = false
- line =~ /[ \t]*1-([1234567890][1234567890]*)[^1234567890]/ \
- or raise "couldn't understand cdda2wav output!"
+ line =~ /[ \t]*1-([ 1234567890][1234567890]*)[^1234567890]/ \
+ or raise "couldn't understand cdda2wav output! (line:#{line})"
return $1.to_i
end
end
end
- raise "couldn't find what we were looking for in cdda2wav output!"
+ raise "couldn't find what we were looking for in cdda2wav output! \
+output:#{lines.join('\n')}"
end
-def audiorip(track, number)
+# Process the WAV file into an MP3 and FLAC file.
+# This is done in a background process.
+def process_wav(track)
+ FileUtils.mkdir_p(track.flac_dir, verbose: true, noop: !$opts.dry_run)
+ my_system("flac -f '#{track.wav_file_name}' \
+--output-name='#{track.flac_file_name}' &>/dev/null")
+ my_system("flac --test '#{track.flac_file_name}' &>/dev/null")
+ FileUtils.mkdir_p(track.mp3_dir, verbose: true, noop: !$opts.dry_run)
+ my_system("lame -q 1 -b 192 '#{track.wav_file_name}' \
+'#{track.mp3_file_name}' &>/dev/null")
+ FileUtils.rm_f(track.wav_file_name, verbose: true, noop: !$opts.dry_run)
+end
+
+def audiorip(tnum, track)
begin
- my_system("nice -1 cdparanoia -w -d #{$cd_dev} #{number}")
+ my_system("nice -1 cdparanoia -w -d #{$opts.cd_dev} #{tnum}")
rescue
- raise "failed to rip track #{number} (#{track.name})"
+ raise "failed to rip track #{tnum} (#{track.name})"
end
# cdparanoia always outputs to cdda.wav
- FileUtils.mv("cdda.wav", track.wav_file_name, $fu_args)
+ FileUtils.mv("cdda.wav", track.wav_file_name, verbose: true, noop: !$opts.dry_run)
- # TODO: spawn a thread to do this stuff in the background
- FileUtils.mkdir_p(track.flac_dir, $fu_args)
- my_system("flac -c #{track.wav_file_name} > #{track.flac_file_name}")
- my_system("lame -q 1 -b 192 #{track.wav_file_name} > #{track.mp3_file_name}")
- FileUtils.rm_f(track.wav_file, $fu_args)
+ # If there are too many processes, wait for one of them to terminate
+ if ($children.keys.length > $opts.max_children) then
+ pid, status = Process.wait2(-1)
+ if (status.exitstatus != 0) then
+ raise "process #{pid} failed with exitstatus #{status.exitstatus}"
+ end
+ $children.delete(pid)
+ end
+
+ pid = Process.fork
+ if (pid == nil) then
+ retcode = 0
+ begin
+ process_wav(track)
+ rescue Exception => e
+ puts "*** FATAL ERROR: #{e}"
+ retcode = 1
+ end
+ Kernel.exit(retcode)
+ else
+ $children[pid] = 1
+ end
end
#-----------------------------------------------------------------
def self.parse(args)
opts = OpenStruct.new
opts.dry_run = false
- $fu_args = { :verbose => true }
+ opts.max_children = 4
+ opts.cd_dev = "/dev/cdrom"
# Fill in opts values
parser = OptionParser.new do |myparser|
myparser.banner = "Usage: #{ File.basename($0) } [opts]"
myparser.separator("Specific options:")
+ myparser.on("--dev [DEV]", "-D",
+ "choose the cdrom device file to use") do |dev|
+ opts.cd_dev = dev
+ end
myparser.on("--dry-run", "-d",
"Show what would be done, without doing it.") do |a|
opts.dry_run = true
- $fu_args = { :verbose => true, :noop => true }
end
myparser.on("--tracklist [FILE]", "-t",
"Provide a list of tracks to use.") do |file|
opts.manifest_file = file
opts.partial = true
end
+ myparser.on("--max-children [NCHILD]", "-j",
+ "The maximum number of child processes to allow at any \
+given time") do |nchild|
+ opts.max_children = nchild.to_i
+ if (opts.max_children < 1) then
+ raise "can't set max_children to #{opts.max_children}"
+ end
+ end
end
parser.parse!(args)
end
class Track
- attr_accessor :name, :flac_dir, :flac_file_name, :mp3_dir, :mp3_file_name
+ attr_accessor :name, :flac_dir, :flac_file_name, :mp3_dir, :mp3_file_name,
+ :wav_file_name
def initialize(name)
if name =~ /\[LL\]/ then
raise "you can't include [LL] in a track name"
(name =~ /([^\/][^\/]*)\/([^\/]*[^\/])/) or \
raise "track name must be of the form 'foo/bar'"
@name = name
- @flac_dir = "#{1} [LL]"
- @flac_file_name = "#{@flac_dir}/#{2}.flac"
- @mp3_dir = "#{1}"
- @mp3_file_name = "#{@mp3_dir}/#{2}.mp3"
- @wav_file_name = "#{1}__#{2}.wav"
+ @flac_dir = "#{$1} [LL]"
+ @flac_file_name = "#{@flac_dir}/#{$2}.flac"
+ @mp3_dir = "#{$1}"
+ @mp3_file_name = "#{@mp3_dir}/#{$2}.mp3"
+ @wav_file_name = "#{$1}__#{$2}.wav"
end
def inspect
- "#{@name}"
+ "track(\"#{@name}\")"
end
end
if (@t.empty?) then
raise "you must define some tracks"
end
- @t.each { |t| t.validate }
- if (not $opts.partial) then
- (1..num_tracks).each do |t|
- if not @t[t].defined?
- raise "don't know what to do with track #{t}"
+ if ($opts.partial) then
+ highest_track = @t.keys.sort[-1]
+ if (num_tracks < highest_track) then
+ raise "can't rip track #{highest_track}, because there are \
+only #{num_tracks} tracks"
+ end
+ else
+ (1..num_tracks).each do |tnum|
+ if not @t.has_key?(tnum)
+ raise "don't know what to do with track #{tnum}"
end
end
end
end
def rip(num_tracks)
- (1..num_tracks).each do |t|
- next unless @t.defined?(t)
- audiorip(t)
+ (1..num_tracks).each do |tnum|
+ next unless @t.has_key?(tnum)
+ audiorip(tnum, @t[tnum])
+ end
+ prc = Process.waitall
+ prc.each do |pair|
+ if (pair[1].exitstatus != 0) then
+ raise "process #{pair[0]} failed with exitstatus #{pair[1].exitstatus}"
+ end
end
end
die_unless_installed("cdda2wav")
manifest = Manifest.new($opts.manifest_file)
-#puts manifest.inspect
+puts manifest.inspect
num_tracks = get_number_of_tracks_on_cd()
puts "found #{num_tracks} tracks"
-#manifest.rip(num_tracks)
+manifest.validate(num_tracks)
+manifest.rip(num_tracks)
+puts "*** FINISHED ***"
exit 0
projects / cmccabe-bin / blobdiff