-#! /usr/bin/env perl
-
-# $Id$
+#! /usr/bin/python
+"""
=head1 NAME
-B<fa-flacd>, B<fa-rip>, B<fa-tags> - archive CDs to single FLAC files
+B<fa-flacd> - archive CDs to single FLAC files
=head1 SYNOPSIS
-B<fa-flacd> [B<-jv>]
-
-B<fa-rip>
+B<fa-flacd> [B<-j> I<jobs>] [B<-v>]
-B<fa-tags> ID TRACKCOUNT OFFSET [OFFSET ...] LENGTH
-
-=cut
+=head1 DESCRIPTION
-use strict;
-use warnings;
-
-use File::Basename;
-use Getopt::Std; $Getopt::Std::STANDARD_HELP_VERSION = 1;
-use POSIX ':sys_wait_h';
-
-our $VERSION = 1;
-
-my $verbose;
-my @jobs;
-my @finished;
-
-sub verbose {
- $verbose and print(STDERR $_) for @_;
-}
-
-# Return the ARTIST, ALBUM, and DATE followed by a list of all the
-# lines in the file FN.
-sub get_tags {
- my $fn = shift;
- my $tag;
- my $value;
- my $artist;
- my $album;
- my $date;
- my @tags;
-
- verbose("Opening tags file $fn\n");
- open(TAGS, $fn) or die("open($fn): $!");
- while (<TAGS>) {
- chomp;
- push(@tags, $_);
-
- ($tag, $value) = split(/=/, $_, 2);
-
- if (/^ARTIST=/) {
- $artist = $value;
- verbose("ARTIST $artist from $fn\n");
- } elsif (/^ALBUM=/) {
- $album = $value;
- verbose("ALBUM $album from $fn\n");
- } elsif (/^DATE=/) {
- $date = $value;
- verbose("DATE $date from $fn\n");
- }
- }
- close(TAGS) or die("close($fn): $!");
-
- return ($artist, $album, $date, @tags);
-}
-
-# Process the fa-rip output in the directory DIR.
-sub flac {
- my $dir = shift;
- my $artist;
- my $album;
- my $date;
- my @tags;
- my $status;
-
- verbose("Renaming $dir/tags\n");
- rename("$dir/tags", "$dir/using-tags")
- or die("rename($dir/tags, $dir/using-tags): $!");
-
- ($artist, $album, $date, @tags) = get_tags("$dir/using-tags");
-
- verbose("mkdir($artist)\n");
- -d $artist or mkdir($artist) or die("mkdir($artist): $!");
-
- verbose("chdir($dir)\n");
- chdir($dir) or die("chdir($dir): $!");
-
- verbose("Running flac\n");
- $status = system('flac', '-o', "../$artist/$album.flac-tmp",
- '--delete-input-file', '-V', '--cuesheet',
- 'cue', '--no-padding', '--best',
- map({ ('-T', $_) } @tags),
- 'wav');
- if (WIFEXITED($status) and ($status = WEXITSTATUS($status)) != 0) {
- die("flac: $status");
- } elsif (WIFSIGNALED($status)) {
- die("flac killed with signal ", WTERMSIG($status));
- } elsif (WIFSTOPPED($status)) {
- die("flac stopped with signal ", WSTOPSIG($status));
- }
-
- verbose("Cleaning up $dir\n");
- unlink('using-tags') or die("unlink(using-tags): $!");
- unlink('cue') or die("unlink(cue): $!");
- rename('toc', "../$artist/$album.toc")
- or die("rename(toc, ../$artist/$album.toc): $!");
- rename('log', "../$artist/$album.log")
- or die("rename(log, ../$artist/$album.log): $!");
- chdir('..') or die("chdir(..): $!");
- rmdir($dir) or die("rmdir($dir): $!");
-
- rename("$artist/$album.flac-tmp", "$artist/$album.flac")
- or die("rename($artist/$album.flac-tmp, $artist/$album.flac): $!");
-
- return 0;
-}
-
-sub reaper {
- my $pid;
-
- while (($pid = waitpid(0, WNOHANG)) > 0) {
- push(@finished, [$pid, $?]);
- }
-
- $SIG{CHLD} = \&reaper;
-}
-
-sub newjob {
- my $dir = shift;
- my $pid;
-
- $pid = fork();
- if (not defined($pid)) {
- die("fork: $!");
- } elsif ($pid == 0) {
- $SIG{CHLD} = 'IGNORE';
- open(STDERR, ">$dir/log") or die("open(STDERR, >$dir/log): $!");
- exit(flac($dir));
- }
-
- verbose("new job $pid for $dir\n");
- return $pid;
-}
-
-sub deljob {
- my $i = shift;
- my $j;
- my $pid;
- my $status;
-
- $pid = $finished[$i][0];
- $status = $finished[$i][1];
-
- verbose("$pid finished (");
- if (WIFEXITED($status)) {
- verbose('exited ', WEXITSTATUS($status));
- } elsif (WIFSIGNALED($status)) {
- verbose('signalled ', WTERMSIG($status));
- } elsif (WIFSTOPPED($status)) {
- verbose('stopped ', WSTOPSIG($status));
- }
- verbose(")\n");
-
- for ($j = 0; $j <= $#jobs; $j++) {
- $pid == $jobs[$j] and splice(@jobs, $j, 1) and last;
- }
-
- splice(@finished, $i, 1);
-}
-
-sub flacloop {
- my $MAXJOBS = shift;
- my $i;
- my $j;
-
-
- $SIG{CHLD} = \&reaper;
- while (1) {
- if (scalar(@jobs) <= $MAXJOBS) {
- foreach $i (glob('*/tags')) {
- push(@jobs, newjob(dirname($i))) <= $MAXJOBS or last;
- }
- }
-
- for ($i = 0; $i <= $#finished; $i++) {
- deljob($i);
- }
-
- verbose(scalar(@jobs), " jobs\n");
- sleep(5);
- }
-}
-
-MAIN: {
- my %opts;
-
- $opts{'j'} = 4;
- $opts{'v'} = 0;
- if (not getopts('j:v', \%opts)) {
- print("usage: flacd [-jN -v]\n");
- exit(2);
- }
-
- $verbose = $opts{'v'};
-
- flacloop($opts{'j'});
-}
-
-\f
-__END__
+B<fa-flacd> and B<fa-rip> together comprise B<flac-archive>, a system
+for archiving audio CDs to single FLAC files. B<fa-flacd> is the guts
+of the system. It runs in the directory where the audio archives are
+stored, scanning for new ripped CDs to encode and rename; it never
+exits. B<fa-rip> generates the inputs for B<fa-flacd>: the ripped WAV
+file, Vorbis tags, and a cuesheet.
-=head1 DESCRIPTION
+Both programs expect to be run from the same directory. They use that
+directory to manage directories named by artist. Intermediate files
+are written to temporary directories here. B<fa-flacd> processes the
+temporary directories into per-album files in the artist directories.
-B<fa-flacd>, B<fa-rip>, and B<fa-tags> together comprise
-B<flac-archive>, a system for archiving audio CDs to single FLAC
-files. B<fa-flacd> is the guts of the system. It runs in the
-directory where the audio archives are stored, scanning for new CDs to
-encode and rename; it never exits. B<fa-rip> generates the inputs for
-B<fa-flacd>: the ripped WAV file, Vorbis tags, and a cuesheet.
-B<fa-tags> is not meant to be run directly; B<fa-rip> uses it to
-generate the candidate Vorbis tags.
-
-All three programs expect to be run from the same directory. They use
-that directory to manage directories named by artist and by disc ID.
-Intermediate files are written to the disc ID directory. B<fa-flacd>
-processes the disc ID directories into per-album files in the artist
-directories.
-
-=head2 FA-FLACD
-
-B<fa-flacd> does not exit; it runs until the user kills it. Every 5
-seconds it scans its current directory for directories with a file
-called "tags" and creates a processing job for each one. The number
-of jobs B<fa-flacd> attempts to run is controlled by the B<-j> option
-and defaults to 4. B<fa-flacd> will print diagnostic output when the
-B<-v> option is given.
+Every 5 seconds, B<fa-flacd> scans its current directory for
+directories with a file called "tags" and creates a processing job for
+each one. The number of jobs B<fa-flacd> attempts to run is
+controlled by the B<-j> option and defaults to 4. B<fa-flacd> will
+print diagnostic output when the B<-v> option is given.
A processing job first renames the directory's "tags" file to
"using-tags" so that B<ra-flacd> will not try to start another job for
condition and renames "using-tags" back to "tags". Next, it encodes
the "wav" file to a FLAC file, using the "cue" file for the cuesheet
and "using-tags" for Vorbis tags. Any diagnostic output is saved in
-the "log" file. Finally, the "cue" and "log" files are moved to the
-artist directory (and named by album) and the ID directory is removed.
-
-=head2 FA-RIP
-
-B<fa-rip> uses C<cd-discid(1)> to retrieve the disc ID and track
-information. It creates a directory named by ID for storage of its
-intermediate files. It passes the C<cd-discid(1)> output as
-command-line arguments to B<fa-tags> in the background. It then uses
-C<cdrdao(1)> to create the "cue" file in the background. Finally, it
-execs C<cdparanoia(1)> to rip the CD to the "wav" file.
-
-In order for this CD to be processed by B<fa-flacd>, the user must
-create a "tags" file. This is usually done by renaming one of the
-candidate-tags files and deleting the others.
-
-=head2 FA-TAGS
-
-B<fa-tags> uses C<cddb-tool(1)> (from the B<abcde> package) to
-populate candidate-tags files. These are numbered in the order of
-entries read from CDDB, e.g. candidate-tags-1, candidate-tags-2, etc.
-B<fa-tags> also creates candidate-tags-0, which has the correct fields
-for this CD (including correct number of TITLE= lines), but with all
-fields blank.
-
-B<fa-tags> expects the output of C<cd-discid(1)> as command-line
-arguments. That is, the disc ID, number of tracks, list of track
-offsets, and total length of the CD in seconds.
-
-=head1 ENVIRONMENT
+the "log" file. Finally, B<fa-flacd> moves the "cue" and "log" files
+to the artist directory (named by album) and removes the temporary
+directory.
+
+If the temporary directory contains an executable file named
+"post-processor", B<fa-flacd> executes that file with the relative
+path to the output FLAC file as an argument. The output files are in
+their final location when "post-processor" starts. Possible uses are
+running B<flac2mp3>, moving the output files to a different location,
+removing the lock file, or adding to a database. The standard input,
+output, and error streams are inherited from B<fa-flacd>, so they may
+be connected to anything from a tty to /dev/null. This means that you
+may want to redirect these streams, if you want to save them or do any
+logging.
+
+=head1 OPTIONS
=over 4
-=item CDDBURL
+=item B<-j> [B<--jobs>] I<jobs>
-B<fa-tags> uses this to retrieve candidate Vorbis tags. Defaults to
-"http://freedb.freedb.org/~cddb/cddb.cgi".
+Run up to I<jobs> jobs instead of the default 4.
-=item CDDEV
+=item B<-v> [B<--verbose>]
-B<fa-rip> uses this to rip audio and save the cuesheet for a CD. It
-makes some effort to check some common device names for FreeBSD,
-Linux, and NetBSD by default.
+Print diagnostic information.
=back
=head1 AUTHORS
-Written by Eric Gillespie <epg@pretzelnet.org>. B<fa-tags> contains
-code from B<abcde>, which bears the following notice:
-
-# Copyright (c) 1998-2001 Robert Woodcock <rcw@debian.org>
-# Copyright (c) 2003-2004 Jesus Climent <jesus.climent@hispalinux.es>
-# This code is hereby licensed for public consumption under either the
-# GNU GPL v2 or greater, or Larry Wall's Artistic license - your choice.
+Written by Eric Gillespie <epg@pretzelnet.org>.
-B<flac-archive> is hereby licensed for public consumption under either
-the GNU GPL v2 or greater, or Larry Wall's Artistic license - your
-choice.
+flac-archive is free software; you may redistribute it and/or modify
+it under the same terms as Perl itself.
=cut
-# Local variables:
-# cperl-indent-level: 4
-# perl-indent-level: 4
-# indent-tabs-mode: nil
-# End:
-
-# vi: set tabstop=4 expandtab:
+"""
+
+import os
+import re
+import sys
+import time
+import traceback
+from errno import EEXIST, ENOENT
+from glob import glob
+from optparse import OptionParser
+
+import org.diplodocus.jobs
+from org.diplodocus.structures import ListDictDict
+from org.diplodocus.util import die, flatten, nothing
+from org.diplodocus.util import catch_EnvironmentError as c
+
+from flac_archive.tags import Tags
+
+def spew(*args):
+ if verbose:
+ for i in args:
+ sys.stderr.write(i)
+
+################################################################################
+# The child processes
+
+def run_flac(infile, cue, outfile, tags):
+ argv = ['flac', '-o', outfile + '.flac-tmp',
+ '--delete-input-file', '-V', '--no-padding', '--best']
+ if cue != None:
+ argv.extend(['--cuesheet', cue])
+ for i in tags:
+ argv.extend(['-T', i])
+ argv.append(infile)
+ # flac 1.1.3 PICTURE support
+ if os.path.exists('cover.front'):
+ argv.extend(['--picture', '3|image/jpeg|||cover.front'])
+
+ spew('Running flac\n')
+ status = os.spawnvp(os.P_WAIT, argv[0], argv)
+ if status > 0:
+ die(2, 'flac exited with status ', str(status))
+ elif status < 0:
+ die(2, 'flac killed with signal ', str(abs(status)))
+
+ c(os.rename, outfile + '.flac-tmp', outfile + '.flac')
+
+def flac(dir, tracknum, tags):
+ """Encode a single wav file to a single flac file, whether the wav and
+ flac files represent individual tracks or whole discs."""
+
+ separator = ' '
+ if len(tags.get('ALBUMARTIST')) > 0:
+ artist_tag = tags.gets('ALBUMARTIST', separator=', ')
+ else:
+ artist_tag = tags.gets('ARTIST', separator=', ')
+ artist = (artist_tag or '').replace('/', '_')
+ album = (tags.gets('ALBUM', separator=separator) or '').replace('/', '_')
+ discnum = tags.gets('DISCNUMBER')
+
+ spew('mkdir(%s)\n' % (artist,))
+ try:
+ c(os.mkdir, artist)
+ except EnvironmentError, error:
+ error.errno == EEXIST or die(2, error.msg, traceback.format_exc())
+
+ if tracknum != None:
+ outdir = '/'.join([artist, album])
+ spew('mkdir(%s)\n' % (outdir,))
+ try:
+ c(os.mkdir, outdir)
+ except EnvironmentError, error:
+ error.errno == EEXIST or die(2, error.msg, traceback.format_exc())
+
+ spew('chdir(%s)\n' % (dir,))
+ c(os.chdir, dir)
+
+ if tracknum == None:
+ outfile = album
+ if discnum != None:
+ outfile = ''.join([discnum, ' ', outfile])
+ run_flac('wav', 'cue', '/'.join(['..', artist, outfile]), tags.all())
+ files = ['%s/%s.flac' % (artist, outfile)]
+
+ c(os.unlink, 'cue')
+ outlog = '/'.join(['..', artist, outfile + '.log'])
+ c(os.rename, 'log', outlog)
+ else:
+ title = tags.gets('TITLE', tracknum, separator).replace('/', '_')
+ tmp = []
+ if discnum != None:
+ tmp.append('%02d' % (int(discnum),))
+ tmp.extend(['%02d' % (tracknum,), title])
+ part = tags.gets('PART', tracknum)
+ if part != None:
+ tmp.extend(['-', part])
+ outfile = '/'.join([outdir, ' '.join(tmp)])
+
+ run_flac('track%02d.cdda.wav' % (tracknum,), None,
+ '../' + outfile, tags.track(tracknum))
+ outlog = ''.join(['../', outfile, '.log'])
+ files = [outfile + '.flac']
+
+ c(os.rename, str(tracknum) + '.log', outlog)
+
+ c(os.chdir, '..')
+
+ post = dir + '/post-processor'
+ if os.path.exists(post):
+ spew('Running ', post); spew(files); spew('\n')
+ files.insert(0, post)
+ os.spawnv(os.P_WAIT, post, files)
+ c(os.unlink, post)
+
+ # Clean up if we're the last job for dir; for multi-file dirs,
+ # it's possible for more than one job to run cleanup at once, so
+ # don't fail if things are already clean.
+ ld = os.listdir(dir)
+ if ld == ['using-tags'] or sorted(ld) == ['cover.front', 'using-tags']:
+ try:
+ try:
+ os.unlink(dir + '/cover.front')
+ except OSError:
+ pass
+ os.unlink(dir + '/using-tags')
+ os.rmdir(dir)
+ except EnvironmentError:
+ pass
+
+ return 0
+
+################################################################################
+# The master process
+
+def get_tags(fn):
+ """Return the ARTIST, ALBUM, and DATE followed by a list of all the
+ lines in the file FN."""
+
+ tags = Tags()
+ spew('Opening tags file %s\n' % (fn,))
+ tags.load(open(fn))
+
+ spew('ARTIST %s from %s\n' % (tags.gets('ARTIST'), fn))
+ spew('ALBUM %s from %s\n' % (tags.gets('ALBUM'), fn))
+ spew('DISCNUMBER %s from %s\n' % (tags.gets('DISCNUMBER'), fn))
+
+ return tags
+
+def flacloop(maxjobs):
+ dir = [None] # [str] instead of str for lame python closures
+ jobs = []
+
+ # Get a job for jobs.run. On each call, look for new fa-rip
+ # directories and append an item to the queue @jobs for each wav
+ # file therein. Then, if we have anything in the queue, return a
+ # function to call flac for it, otherwise sleep for a bit. This
+ # looks forever, never returning None, so jobs.run never returns.
+ def getjob(reap):
+ # Look for new fa-rip directories.
+ while True:
+ for i in glob('*/tags'):
+ try:
+ dir[0] = os.path.dirname(i)
+
+ spew("Renaming %s/tags\n" % (dir[0],))
+ c(os.rename, dir[0] + '/tags', dir[0] + '/using-tags')
+
+ tags = get_tags(dir[0] + '/using-tags')
+ if os.path.exists(dir[0] + '/wav'):
+ # single-file
+ jobs.append((dir[0], None, tags))
+ else:
+ # multi-file
+ # Don't need cue file.
+ try:
+ c(os.unlink, dir[0] + '/cue')
+ except EnvironmentError, error:
+ if error.errno != ENOENT:
+ raise error
+
+ jobs.extend([(dir[0], x, tags)
+ for x in xrange(1, len(tags) + 1)])
+ except Exception, error:
+ sys.stderr.write(getattr(error, 'msg', ''))
+ traceback.print_exc()
+ sys.stderr.write('Continuing...\n')
+
+ # Return a job if we found any work.
+ try:
+ job = jobs.pop(0)
+ except IndexError:
+ # Didn't find anything; wait a while and check again.
+ time.sleep(5)
+ reap()
+ continue
+
+ def lamb():
+ log = '/'.join([job[0],
+ job[1] == None and 'log'
+ or str(job[1]) + '.log'])
+ try:
+ c(os.dup2, c(os.open, log, os.O_CREAT | os.O_WRONLY), 2)
+ return flac(*job)
+ except EnvironmentError, error:
+ sys.stderr.write(getattr(error, 'msg', ''))
+ traceback.print_exc()
+ return 1
+ return lamb
+
+ def notify_start(pid, jobs):
+ # make this print '2 jobs; start 378 for Artist/01 Title.flac'
+ spew('%d jobs; start %d for %s\n' % (len(jobs), pid, dir[0]))
+
+ def notify_finish(pid, status, jobs):
+ spew('%d jobs; %d finished (' % (len(jobs), pid))
+ if os.WIFEXITED(status):
+ spew('exited with status ', str(os.WEXITSTATUS(status)))
+ elif os.WIFSIGNALED(status):
+ spew('killed with signal ', str(os.WTERMSIG(status)))
+ elif os.WIFSTOPPED(status):
+ spew('stopped with signal ', str(os.WSTOPSIG(status)))
+ spew(')\n')
+
+ # Never returns (see getjob comment).
+ org.diplodocus.jobs.run(maxjobs=maxjobs, debug=debug,
+ get_job=getjob,
+ notify_start=notify_start,
+ notify_finish=notify_finish)
+
+def main(argv):
+ # Control the exit code for any uncaught exceptions.
+ try:
+ parser = OptionParser()
+ parser.disable_interspersed_args()
+ parser.add_option('-X', '--debug', action='store_true', default=False)
+ parser.add_option('-j', '--jobs', type='int', default=1)
+ parser.add_option('-v', '--verbose', action='store_true', default=False)
+ except:
+ traceback.print_exc()
+ return 2
+
+ try:
+ # Raises SystemExit on invalid options in argv.
+ (options, args) = parser.parse_args(argv[1:])
+ except Exception, error:
+ if isinstance(error, SystemExit):
+ return 1
+ traceback.print_exc()
+ return 2
+
+ try:
+ global debug, verbose
+ debug = options.debug
+ verbose = options.verbose
+
+ # Never returns...
+ flacloop(options.jobs)
+ except Exception, error:
+ # but might blow up.
+ if isinstance(error, SystemExit):
+ raise
+ sys.stderr.write(getattr(error, 'msg', ''))
+ traceback.print_exc()
+ return 2
+
+if __name__ == '__main__':
+ sys.exit(main(sys.argv))
projects / flac-archive / blobdiff