| … | |
… | |
| 40 | Coro::AIO::aio_stat $file |
40 | Coro::AIO::aio_stat $file |
| 41 | and next; |
41 | and next; |
| 42 | |
42 | |
| 43 | my $hash = join ",", 1, (stat _)[7,9], $file; |
43 | my $hash = join ",", 1, (stat _)[7,9], $file; |
| 44 | |
44 | |
| 45 | my $old_tags; |
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| 46 | |
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| 47 | my $txn = $cf::DB_ENV->txn_begin; |
45 | my $txn = $cf::DB_ENV->txn_begin; |
| 48 | |
46 | |
| 49 | utf8::encode $key; |
47 | utf8::encode $key; |
| 50 | BDB::db_get $db_mapinfo, $txn, $key, my $data; |
48 | BDB::db_get $db_mapinfo, $txn, $key, my $data; |
| 51 | |
49 | |
| 52 | unless ($!) { |
50 | unless ($!) { |
| 53 | $data = decode_json $data; |
51 | $data = decode_json $data; |
| 54 | return if $data->{hash} eq $hash; |
52 | return if $data->{hash} eq $hash; |
| 55 | $old_tags = $data->{tags}; |
53 | |
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54 | # remove all old tags unconditionally |
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55 | remove_tag_target $txn, $_, $key |
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56 | for @{ $data->{tags} }; |
| 56 | } |
57 | } |
| 57 | |
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| 58 | $old_tags ||= []; |
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| 59 | |
58 | |
| 60 | my $f = new_from_file cf::object::thawer $file |
59 | my $f = new_from_file cf::object::thawer $file |
| 61 | or return; |
60 | or return; |
| 62 | |
61 | |
| 63 | my @tags = sort $f->extract_tags; |
62 | my @tags = sort $f->extract_tags; |
| 64 | $data = encode_json { hash => $hash, tags => \@tags }; |
63 | $data = encode_json { hash => $hash, tags => \@tags }; |
| 65 | |
64 | |
| 66 | BDB::db_put $db_mapinfo, $txn, $key, $data; |
65 | BDB::db_put $db_mapinfo, $txn, $key, $data; |
| 67 | |
66 | |
| 68 | # 1. remove tags no longer existing |
67 | # add all tags |
| 69 | for my $tag (@$old_tags) { |
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| 70 | next if grep $_ eq $tag, @tags; |
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| 71 | remove_tag_target $txn, $tag, $key; |
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| 72 | } |
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| 73 | |
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| 74 | # 2. add tags that are new |
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| 75 | for my $tag (@tags) { |
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| 76 | next if grep $_ eq $tag, @$old_tags; |
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| 77 | add_tag_target $txn, $tag, $key; |
68 | add_tag_target $txn, $_, $key |
| 78 | } |
69 | for @tags; |
| 79 | |
70 | |
| 80 | # we don't actually care if it succeeds or not, as we |
71 | # we don't actually care if it succeeds or not, as we |
| 81 | # will just retry an hour later |
72 | # will just retry an hour later |
| 82 | BDB::db_txn_finish $txn; |
73 | BDB::db_txn_finish $txn; |
| 83 | |
74 | |
