forked from acme/net-amazon-s3
/
backup_cpan.pl
executable file
·161 lines (134 loc) · 3.9 KB
/
backup_cpan.pl
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
#!/home/acme/bin/perl
use strict;
use warnings;
use lib 'lib';
use Data::Stream::Bulk::Path::Class;
use Net::Amazon::S3;
use Perl6::Say;
use Path::Class;
use Set::Object;
use Term::ProgressBar::Simple;
use List::Util qw(sum);
use Digest::MD5::File qw(file_md5_hex);
use BerkeleyDB::Manager;
use Cwd;
use Config;
my $m = BerkeleyDB::Manager->new(
home => Path::Class::Dir->new(cwd),
db_class => 'BerkeleyDB::Hash',
create => 1,
);
my $db = $m->open_db( file => 'md5_cache' );
my $s3 = Net::Amazon::S3->new(
aws_access_key_id => 'XXX',
aws_secret_access_key => 'XXX',
retry => 1,
);
my $client = Net::Amazon::S3::Client->new( s3 => $s3 );
my $bucket = $client->bucket( name => 'minicpan' );
my $root = '/home/acme/Public/minicpan/';
my $file_stream = Data::Stream::Bulk::Path::Class->new(
dir => Path::Class::Dir->new($root),
only_files => 1,
);
my %files;
my $file_set = Set::Object->new();
until ( $file_stream->is_done ) {
foreach my $filename ( $file_stream->items ) {
my $key = $filename->relative($root)->stringify;
#[rootname]path/to/file.txt:<ctime>,<mtime>,<size>,<inodenum>
my $stat = $filename->stat;
my $ctime = $stat->ctime;
my $mtime = $stat->mtime;
my $size = $stat->size;
my $inodenum = $stat->ino;
my $cachekey = "$key:$ctime,$mtime,$size,$inodenum";
$db->db_get( $cachekey, my $md5_hex );
if ($md5_hex) {
#say "hit $cachekey $md5hex";
} else {
$md5_hex = file_md5_hex($filename)
|| die "Failed to find MD5 for $filename";
$m->txn_do(
sub {
$db->db_put( $cachekey, $md5_hex );
}
);
#say "miss $cachekey $md5_hex";
}
$files{$key} = {
filename => $filename,
key => $key,
md5_hex => $md5_hex,
size => -s $filename,
};
$file_set->insert($key);
}
}
my %objects;
my $s3_set = Set::Object->new();
my $object_stream = $bucket->list;
until ( $object_stream->is_done ) {
foreach my $object ( $object_stream->items ) {
my $key = $object->key;
$objects{$key} = {
filename => file( $root, $key )->stringify,
key => $key,
md5_hex => $object->etag,
size => $object->size,
};
# say $object->key . ' ' . $object->size . ' ' . $object->etag;
$s3_set->insert( $object->key );
}
}
my @to_add;
my @to_delete;
foreach my $key ( sort keys %files ) {
my $file = $files{$key};
my $object = $objects{$key};
if ($object) {
if ( $file->{md5_hex} eq $object->{md5_hex} ) {
# say "$key same";
} else {
# say "$key different";
push @to_add, $file;
}
} else {
#say "$key missing";
push @to_add, $file;
}
}
foreach my $key ( sort keys %objects ) {
my $object = $objects{$key};
my $file = $files{$key};
if ($file) {
} else {
# say "$key to delete";
push @to_delete, $object;
}
}
my $total_size = sum map { file( $_->{filename} )->stat->size } @to_add;
$total_size += scalar(@to_delete);
my $progress = Term::ProgressBar::Simple->new($total_size);
foreach my $file (@to_add) {
my $key = $file->{key};
my $filename = $file->{filename};
my $md5_hex = $file->{md5_hex};
my $size = $file->{size};
# say "put $key";
$progress += $size;
my $object = $bucket->object(
key => $key,
etag => $md5_hex,
size => $size
);
$object->put_filename($filename);
}
foreach my $object (@to_delete) {
my $key = $object->{key};
my $filename = $object->{filename};
my $object = $bucket->object(key => $key);
# say "delete $key";
$object->delete;
$progress++;
}