create-v4, report, update: Keep track of which box each disc is in.

[dvddb] / update

diff --git a/update b/update
index 0fadbcd..7fdef51 100755 (executable)
--- a/update
+++ b/update
@@ -16,30 +16,30 @@ my $DB = DBI->connect("dbi:Pg:host=roadstar", "", "",
                      { AutoCommit => 0,
                        RaiseError => 1 });
 
-my $st_get_set = $DB->prepare("SELECT name, ndisc FROM dvd_set
-                              WHERE id = ?");
-my $st_add_set = $DB->prepare("INSERT INTO dvd_set (name, ndisc)
-                              VALUES (?, ?)
-                              RETURNING id");
-my $st_update_set = $DB->prepare("UPDATE dvd_set
-                                 SET name = ?, ndisc = ?
-                                 WHERE id = ?");
+my $st_get_set = $DB->prepare
+  ("SELECT name, n_disc FROM dvd_set WHERE id = ?");
+my $st_add_set = $DB->prepare
+  ("INSERT INTO dvd_set (name, n_disc) VALUES (?, ?) RETURNING id");
+my $st_update_set = $DB->prepare
+  ("UPDATE dvd_set SET name = ?, n_disc = ? WHERE id = ?");
 my $st_delete_set = $DB->prepare("DELETE FROM dvd_set WHERE id = ?");
 
-my $st_get_discs = $DB->prepare("SELECT disc, path FROM dvd_disc
-                                WHERE set_id = ? AND ? <= disc AND disc < ?
-                                ORDER BY disc");
-my $st_add_disc = $DB->prepare("INSERT INTO dvd_disc (set_id, disc, path)
-                               VALUES (?, ?, ?)");
-my $st_update_disc = $DB->prepare("UPDATE dvd_disc SET path = ?
-                                  WHERE set_id = ? AND disc = ?");
-my $st_delete_disc_range = $DB->prepare("DELETE FROM dvd_disc
-                                        WHERE set_id = ? AND
-                                          ? <= disc AND disc < ?");
-my $st_delete_discs = $DB->prepare("DELETE FROM dvd_disc WHERE set_id = ?");
+my $st_get_discs = $DB->prepare
+  ("SELECT disc, path, box FROM dvd_disc
+    WHERE set_id = ? AND ? <= disc AND disc < ?
+    ORDER BY disc");
+my $st_add_disc = $DB->prepare
+  ("INSERT INTO dvd_disc (set_id, disc, path, box) VALUES (?, ?, ?, ?)");
+my $st_update_disc = $DB->prepare
+  ("UPDATE dvd_disc SET path = ?, box = ? WHERE set_id = ? AND disc = ?");
+my $st_delete_disc_range = $DB->prepare
+  ("DELETE FROM dvd_disc WHERE set_id = ? AND ? <= disc AND disc < ?");
+my $st_delete_discs = $DB->prepare
+  ("DELETE FROM dvd_disc WHERE set_id = ?");
 
 my ($id, $name, $ndisc) = (undef, undef, -1);
 my @path;
+my %box;
 
 sub flush_set () {
   defined $id or return;
@@ -71,11 +71,14 @@ sub flush_set () {
     my $i = 0;
     DISC: for (;;) {
       my @r = $st_get_discs->fetchrow_array; last DISC unless @r;
-      my ($disc, $old_path) = @r;
+      my ($disc, $old_path, $old_box) = @r; $old_box //= "#nil";
       $disc == $i or die "unexpected disc number";
-      my $path = $path[$i++];
-      if (defined $path && (!defined $old_path || $path ne $old_path))
-       { $st_update_disc->execute($path, $id, $disc); }
+      my $path = $path[$i++]; my $box = $box{$path};
+      if (defined $path &&
+         (!defined $old_path || $path ne $old_path || $old_box ne $box)) {
+       $st_update_disc->execute($path, $box eq "#nil" ? undef : $box,
+                                $id, $disc);
+      }
     }
     $i == $min_ndisc or die "missing disc records";
 
@@ -83,17 +86,23 @@ sub flush_set () {
       $st_delete_disc_range->execute($id, $min_ndisc, $old_ndisc);
   }
 
-  for (my $i = $min_ndisc; $i < $ndisc; $i++)
-    { $st_add_disc->execute($id, $i, $path[$i]); }
+  for (my $i = $min_ndisc; $i < $ndisc; $i++) {
+    my $box = $box{$path[$i]};
+    $st_add_disc->execute($id, $i, $path[$i],
+                         $box eq "#nil" ? undef : $box);
+  }
 
-  $id = undef; @path = ();
+  $id = undef; @path = (); %box = ();
 }
 
+my $curbox = "#nil";
 LINE: while (<>) {
   chomp;
 
-  if (/^ \[ \# (\d+ | NEW | UNK) \s* : \s* (\d+ | \* | DEL) ]
-       \s* (\S .*)? $/x) {
+  if (/^ \s* (\; .*)? $/x) {
+    next LINE;
+  } elsif (/^ \[ \# (\d+ | NEW | UNK) \s* : \s* (\d+ | \* | DEL) ]
+             \s* (\S .*)? $/x) {
     flush_set;
 
     ($id, $ndisc, $name) = ($1, $2, $3);
@@ -108,16 +117,13 @@ LINE: while (<>) {
     } else {
       defined $name or die "missing name";
     }
-  } elsif (/^ \s+ !! \s* (\S .*) $/x) {
-    my $path = $1;
-    defined $id or die "no active set";
-    push @path, undef;
-  } elsif (/^ \s+ (\S .*) $/x) {
+  } elsif (/^ \s* \! \s* box \s+ (\S .*) $/x) {
+    $curbox = $1;
+  } elsif (/^ \s+ (?: !! \s*)? (\S .*) $/x) {
     my $path = $1;
     defined $id or die "no active set";
-    -f "$ROOT/$path" && ! -l "$ROOT/$path" or die "file `$path' not found";
-    push @path, $path;
-  } elsif (/^ .* \S .* $/) {
+    push @path, $path; $box{$path} = $curbox;
+  } else {
     die "unrecognized line `$_'";
   }
 }