split out some shared code and tidy 0-prefixing on DISCNUMBER

[flac-archive] / fa-encode

diff --git a/fa-encode b/fa-encode
index 5a8a72da097b43ebf914d34a78390f7272db2868..c18b1bc18a5e9a5e0df39e327403eb13ef3dd89e 100755 (executable)
--- a/fa-encode
+++ b/fa-encode
@@ -61,50 +61,21 @@ package epg::flac::archive::encode;
 use v5.12;
 use warnings;
 
-sub mangle_for_file_name {
-    my $fn = shift;
-    $fn =~ s/\s+/_/g;
-    $fn =~ s/[^A-Za-z0-9._]/-/g;
-    $fn
-}
-
-sub read_tags {
-    my $fn = shift;
-    open(my $fh, '<', $fn) || die("open($fn): $!");
-    my %album;
-    my @tracks;
-    my $tracknum = 0;
-    while (<$fh>) {
-        chomp;
-        s/^([^=[\]]+)(\[(\d+)])?=// || die("no field name in $_");
-        my $name = $1;
-        # TODO validate $name
-        # TODO album tags should be illegal after track tags
-        if (defined($3)) {
-            if ($3 == $tracknum + 2) {
-                $tracknum++;
-            } elsif ($3 != $tracknum + 1) {
-                $tracknum++;    # increment from 0 to 1 for error message
-                die("illegal track number jump from $tracknum to $3")
-            }
-            push(@{$tracks[$tracknum]->{$name}}, $_);
-        } else {
-            push(@{$album{$name}}, $_);
-        }
-    }
+use FindBin;
 
-    \%album, \@tracks
-}
-
-sub quote {
-    my $s = shift;
-    $s =~ s/'/'\\''/g;
-    "'$s'"
-}
+require "$FindBin::Bin/tags.p";
+epg::flac::archive::tags->import(
+    qw[
+        read_tags
+        mangle_for_file_name
+        quote
+    ]);
 
 sub main {
     my $input_directory = shift;
-    my ($album, $tracks) = read_tags("$input_directory/tags");
+    my $fn = "$input_directory/tags";
+    open(my $fh, '<', $fn) || die("open($fn): $!");
+    my ($album, $tracks) = read_tags($fh);
     if (!defined($album->{ALBUM}) || scalar(@{$album->{ALBUM}}) != 1) {
         die('exactly one ALBUM tag required')
     }
@@ -127,7 +98,7 @@ sub main {
         if (scalar(@{$album->{DISCNUMBER}}) != 1) {
             die('one or zero DISCNUMBER tags required')
         }
-        @discnumber = (sprintf('%02d', $album->{DISCNUMBER}->[0]));
+        @discnumber = ($album->{DISCNUMBER}->[0]);
     }
 
     my $dir = join('/', '..', mangle_for_file_name($artist), mangle_for_file_name($album_tag));
@@ -156,7 +127,7 @@ sub main {
         my $fn = join('/',
                       $dir,
                       join('_',
-                           @discnumber,
+                           (map { sprintf('%02d', $_) } @discnumber),
                            $tracknum_s,
                            mangle_for_file_name($title) . '.flac',
                       ),