=cut
+package Jobs;
+
+use strict;
+use warnings;
+
+use Errno;
+use POSIX ':sys_wait_h';
+
+sub newjob {
+ my $f = shift;
+ my $jobs = shift;
+ my $debug = shift;
+ my $pid;
+
+ if (not $debug) {
+ $pid = fork();
+ if (not defined($pid)) {
+ die("fork: $!");
+ }
+ }
+
+ if ($debug or $pid == 0) {
+ exit($f->());
+ }
+
+ if ($pid == 0) {
+ exit($f->());
+ }
+
+ push(@$jobs, $pid);
+
+ return $pid;
+}
+
+sub deljob {
+ my $pid = shift;
+ my $status = shift;
+ my $jobs = shift;
+
+ for (my $i = 0; $i <= $#$jobs; $i++) {
+ if ($pid == $jobs->[$i]) {
+ splice(@$jobs, $i, 1);
+ last;
+ }
+ }
+
+ return ($pid, $status);
+}
+
+sub run {
+ my %o = @_;
+ my $maxjobs = $o{'max-jobs'};
+ my $get_job = $o{'get-job'};
+ my $notify_start = $o{'notify-start'};
+ my $notify_finish = $o{'notify-finish'};
+ my @jobs;
+ my $pid;
+
+ # Call notifier function if given.
+ sub call {
+ my $f = shift or return;
+ ref($f) eq 'CODE' or return;
+ $f->(@_);
+ }
+
+ while (1) {
+ if (@jobs <= $maxjobs) {
+ my $job;
+ while (defined($job = $get_job->())) {
+ $pid = newjob($job, \@jobs, $o{'debug'});
+ call($notify_start, $pid, @jobs);
+ @jobs < $maxjobs or last;
+ }
+
+ # No jobs running and get-job returned undef; we're finished.
+ if (@jobs == 0 and not defined($job)) {
+ return;
+ }
+ }
+
+ # Now running as many jobs as we can, block waiting for one to die.
+ do {
+ $pid = waitpid(-1, 0);
+ } while ($pid == 0
+ or ($pid == -1 and ($!{ECHILD} or $!{EINTR})));
+ $pid == -1 and die("waitpid(-1): $!");
+
+ # Before starting more, see if any others have finished.
+ do {
+ call($notify_finish, deljob($pid, $?, \@jobs), @jobs);
+ } while (($pid = waitpid(-1, WNOHANG)) > 0);
+ if ($pid == -1) {
+ $!{ECHILD} or $!{EINTR} or die("waitpid(-1): $!");
+ }
+ }
+}
+
+\f
+################################################################################
+package main;
+
use strict;
use warnings;
my $debug;
my $verbose;
-my @jobs;
-my @finished;
sub verbose {
$verbose and print(STDERR $_) for @_;
return ($artist, $album, $discnum, @tags);
}
-sub bork_tags {
+sub track_tags {
my $h = shift;
my @result;
or die("rename($outfile.flac-tmp, $outfile.flac): $!");
}
-# Process the fa-rip output in the directory DIR.
+# Encode a single wav file to a single flac file, whether the wav and
+# flac files represent individual tracks or whole discs.
sub flac {
my $dir = shift;
- my $artist;
- my $album;
- my $discnum;
- my @tags;
- my $single_file = -e "$dir/wav";
+ my $artist = shift;
+ my $album = shift;
+ my $discnum = shift;
+ my $tracknum = shift;
+ my $track_tags = shift;
+ my $disc_artist = shift;
+ my $single_file = not defined($tracknum);
+ my @tags = @_;
my $outdir;
my $outfile;
my $outlog;
my @files;
- verbose("Renaming $dir/tags\n");
- rename("$dir/tags", "$dir/using-tags")
- or die("rename($dir/tags, $dir/using-tags): $!");
-
- ($artist, $album, $discnum, @tags) = get_tags("$dir/using-tags");
for ($artist, $album) {
s|/|_|g;
}
verbose("mkdir($artist)\n");
- -d $artist or mkdir($artist) or die("mkdir($artist): $!");
+ mkdir($artist) or $!{EEXIST} or die("mkdir($artist): $!");
if (not $single_file) {
$outdir = "$artist/$album";
verbose("mkdir($outdir)\n");
- -d "$outdir" or mkdir("$outdir") or die("mkdir($outdir): $!");
+ mkdir("$outdir") or $!{EEXIST} or die("mkdir($outdir): $!");
}
verbose("chdir($dir)\n");
run_flac('wav', 'cue', "../$artist/$outfile", @tags);
$outlog = "../$artist/$outfile.log";
@files = ("$artist/$outfile.flac");
+
+ unlink('cue') or die("unlink(cue): $!");
+ rename('log', $outlog)
+ or die("rename(log, $outlog): $!");
} else {
- my %things;
- my @artist;
- my @bork;
- for my $tag (@tags) {
- if ($tag =~ /^([^[]+)\[(\d+)]=(.*)/) {
- push(@{$things{$2}->{$1}}, $3);
- } elsif ($tag =~ /^ARTIST=/) {
- push(@artist, $tag);
- } else {
- push(@bork, $tag);
- }
+ my $title = join(' ', map(split, @{$track_tags->{'TITLE'}}));
+ $title =~ s|/|_|g;
+ $outfile = join('/',
+ $outdir,
+ join(' ',
+ (defined($discnum)
+ ? sprintf('%02d', $discnum)
+ : ()),
+ sprintf('%02d', $tracknum),
+ $title));
+
+ # If we have ARTIST[n] tags for this track, set @track_artist
+ # to the empty list; they will go in along with the other [n]
+ # tags.
+ my @track_artist;
+ if (exists($track_tags->{'ARTIST'})) {
+ @track_artist = ();
+ } else {
+ @track_artist = @$disc_artist;
}
- @tags = @bork;
-
- for my $tracknum (sort(map(int, keys(%things)))) {
- my $title = join(' ', map(split, @{$things{$tracknum}->{'TITLE'}}));
- $title =~ s|/|_|g;
- $outfile = join(' ',
- (defined($discnum)
- ? sprintf('%02d', $discnum)
- : ()),
- sprintf('%02d', $tracknum),
- $title);
- push(@files, "$outdir/$outfile.flac");
- $outfile = "../$outdir/$outfile";
-
- my @lartist;
- if (exists($things{$tracknum}->{'ARTIST'})) {
- @lartist = ();
- } else {
- @lartist = @artist;
- }
- run_flac(sprintf('track%02d.cdda.wav', $tracknum), undef, $outfile,
- @lartist,
- grep({ $_ !~ /^ARTIST=/ } @tags),
- bork_tags($things{$tracknum}));
- $outlog = "../$outdir/log";
- }
+ run_flac(sprintf('track%02d.cdda.wav', $tracknum), undef,
+ "../$outfile",
+ @track_artist,
+ @tags,
+ "TRACKNUMBER=$tracknum",
+ track_tags($track_tags));
+ $outlog = "../$outfile.log";
+ push(@files, "$outfile.flac");
+
+ rename("$tracknum.log", $outlog)
+ or die("rename($tracknum.log, $outlog): $!");
}
- verbose("Cleaning up $dir\n");
- unlink('using-tags') or die("unlink(using-tags): $!");
- unlink('cue') or die("unlink(cue): $!");
- rename('log', $outlog)
- or die("rename(log, $outlog): $!");
chdir('..') or die("chdir(..): $!");
if (-x "$dir/post-processor") {
- verbose(join(' ', 'Running', @files), "\n");
+ verbose(join(' ', "Running ./$dir/post-processor", @files), "\n");
system("./$dir/post-processor", @files);
unlink("$dir/post-processor") or die("unlink($dir/post-processor): $!");
}
- rmdir($dir) or die("rmdir($dir): $!");
+ # 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.
+# if (nothing but using-tags in $dir) {
+# unlink("$dir/using-tags") or $!{ENOENT} or die("unlink($dir/using-tags): $!");
+# rmdir($dir) or or $!{ENOENT} die("rmdir($dir): $!");
+# }
return 0;
}
-sub reaper {
- my $pid;
-
- while (($pid = waitpid(-1, WNOHANG)) > 0) {
- push(@finished, [$pid, $?]);
- }
-
- $SIG{CHLD} = \&reaper;
-}
-
-sub newjob {
- my $dir = shift;
- my $pid;
-
- if (not $debug) {
- $pid = fork();
- if (not defined($pid)) {
- die("fork: $!");
- }
- }
-
- if ($debug or $pid == 0) {
- $SIG{CHLD} = 'DEFAULT';
- open(STDERR, ">$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 with status ', WEXITSTATUS($status));
- } elsif (WIFSIGNALED($status)) {
- verbose('killed with signal ', WTERMSIG($status));
- } elsif (WIFSTOPPED($status)) {
- verbose('stopped with signal ', 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;
-
+ my $dir;
+ my @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 undef, so Jobs::run never returns.
+ my $getjob = sub {
+ # Look for new fa-rip directories.
+ while (1) {
+ for my $i (glob('*/tags')) {
+ $dir = dirname($i);
+
+ verbose("Renaming $dir/tags\n");
+ rename("$dir/tags", "$dir/using-tags")
+ or die("rename($dir/tags, $dir/using-tags): $!");
+
+ my ($artist, $album,
+ $discnum, @tags) = get_tags("$dir/using-tags");
+ if (-e "$dir/wav") {
+ # single-file
+ push(@jobs,
+ [$dir, $artist, $album, $discnum,
+ undef, undef, undef, @tags]);
+ } else {
+ #multi-file
+ # Don't need cue file.
+ unlink("$dir/cue") or die("unlink($dir/cue): $!");
+
+ # Go over @tags, store all [n] tags in a list keyed by
+ # n in %tracks_to_tags, store all ARTIST (not
+ # ARTIST[n]) tags in @disc_artist, and leave the rest
+ # in @tags.
+ my %tracks_to_tags;
+ my @disc_artist;
+ my @tmp;
+ for my $tag (@tags) {
+ if ($tag =~ /^([^[]+)\[(\d+)]=(.*)/) {
+ push(@{$tracks_to_tags{$2}->{$1}}, $3);
+ } elsif ($tag =~ /^ARTIST=/) {
+ push(@disc_artist, $tag);
+ } else {
+ push(@tmp, $tag);
+ }
+ }
+ @tags = @tmp;
+
+ push(@jobs,
+ map {
+ [$dir, $artist, $album, $discnum, $_,
+ $tracks_to_tags{$_}, \@disc_artist, @tags]
+ } sort(map(int, keys(%tracks_to_tags))));
+ }
+ }
- $SIG{CHLD} = \&reaper;
- while (1) {
- if (scalar(@jobs) <= $MAXJOBS) {
- foreach $i (glob('*/tags')) {
- push(@jobs, newjob(dirname($i))) <= $MAXJOBS or last;
+ # Return a job if we found any work.
+ if (my $job = shift(@jobs)) {
+ return sub {
+ my $log = defined($job->[4]) ? $job->[4] . '.log' : 'log';
+ $dir = $job->[0];
+ open(STDERR, ">$dir/$log") or die("open(STDERR, >$dir/$log): $!");
+ return flac(@$job);
+ }
}
- }
- for ($i = 0; $i <= $#finished; $i++) {
- deljob($i);
+ # Didn't find anything; wait a while and check again.
+ sleep(5);
}
-
- verbose(scalar(@jobs), " jobs\n");
- sleep(5);
- }
+ };
+
+ # Never returns (see $getjob comment).
+ Jobs::run('max-jobs'=>$MAXJOBS,
+ 'debug'=>$debug,
+ 'get-job'=>$getjob,
+
+ 'notify-start'=>sub {
+ my $pid = shift;
+ verbose("new job $pid for $dir\n");
+ verbose(scalar(@_), " jobs\n");
+ },
+
+ 'notify-finish'=>sub {
+ my $pid = shift;
+ my $status = shift;
+ verbose("$pid finished (");
+ if (WIFEXITED($status)) {
+ verbose('exited with status ', WEXITSTATUS($status));
+ } elsif (WIFSIGNALED($status)) {
+ verbose('killed with signal ', WTERMSIG($status));
+ } elsif (WIFSTOPPED($status)) {
+ verbose('stopped with signal ', WSTOPSIG($status));
+ }
+ verbose(")\n");
+ });
}
MAIN: {
projects / flac-archive / blobdiff