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
|
use 5.008001;
use strict;
use warnings;
package Log::Any::Adapter::File;
# ABSTRACT: Simple adapter for logging to files
our $VERSION = '1.717';
use Config;
use Fcntl qw/:flock/;
use IO::File;
use Log::Any::Adapter::Util ();
use Log::Any::Adapter::Base;
our @ISA = qw/Log::Any::Adapter::Base/;
my $HAS_FLOCK = $Config{d_flock} || $Config{d_fcntl_can_lock} || $Config{d_lockf};
my $trace_level = Log::Any::Adapter::Util::numeric_level('trace');
sub new {
my ( $class, $file, @args ) = @_;
return $class->SUPER::new( file => $file, log_level => $trace_level, @args );
}
sub init {
my $self = shift;
if ( exists $self->{log_level} && $self->{log_level} =~ /\D/ ) {
my $numeric_level = Log::Any::Adapter::Util::numeric_level( $self->{log_level} );
if ( !defined($numeric_level) ) {
require Carp;
Carp::carp( sprintf 'Invalid log level "%s". Defaulting to "%s"', $self->{log_level}, 'trace' );
}
$self->{log_level} = $numeric_level;
}
if ( !defined $self->{log_level} ) {
$self->{log_level} = $trace_level;
}
my $file = $self->{file};
my $binmode = $self->{binmode} || ':utf8';
$binmode = ":$binmode" unless substr($binmode,0,1) eq ':';
open( $self->{fh}, ">>$binmode", $file )
or die "cannot open '$file' for append: $!";
$self->{fh}->autoflush(1);
}
foreach my $method ( Log::Any::Adapter::Util::logging_methods() ) {
no strict 'refs';
my $method_level = Log::Any::Adapter::Util::numeric_level( $method );
*{$method} = sub {
my ( $self, $text ) = @_;
return if $method_level > $self->{log_level};
my $msg = sprintf( "[%s] %s\n", scalar(localtime), $text );
flock($self->{fh}, LOCK_EX) if $HAS_FLOCK;
$self->{fh}->print($msg);
flock($self->{fh}, LOCK_UN) if $HAS_FLOCK;
}
}
foreach my $method ( Log::Any::Adapter::Util::detection_methods() ) {
no strict 'refs';
my $base = substr($method,3);
my $method_level = Log::Any::Adapter::Util::numeric_level( $base );
*{$method} = sub {
return !!( $method_level <= $_[0]->{log_level} );
};
}
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
Log::Any::Adapter::File - Simple adapter for logging to files
=head1 VERSION
version 1.717
=head1 SYNOPSIS
use Log::Any::Adapter ('File', '/path/to/file.log');
# or
use Log::Any::Adapter;
...
Log::Any::Adapter->set('File', '/path/to/file.log');
# with minimum level 'warn'
use Log::Any::Adapter (
'File', '/path/to/file.log', log_level => 'warn',
);
=head1 DESCRIPTION
This simple built-in L<Log::Any|Log::Any> adapter logs each message to the
specified file, with a datestamp prefix and newline appended. The file is
opened for append with autoflush on. If C<flock> is available, the handle
will be locked when writing.
The C<log_level> attribute may be set to define a minimum level to log.
The C<binmode> attribute may be set to define a PerlIO layer string to use
when opening the file. The default is C<:utf8>.
Category is ignored.
=head1 SEE ALSO
L<Log::Any|Log::Any>, L<Log::Any::Adapter|Log::Any::Adapter>
=head1 AUTHORS
=over 4
=item *
Jonathan Swartz <swartz@pobox.com>
=item *
David Golden <dagolden@cpan.org>
=item *
Doug Bell <preaction@cpan.org>
=item *
Daniel Pittman <daniel@rimspace.net>
=item *
Stephen Thirlwall <sdt@cpan.org>
=back
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2017 by Jonathan Swartz, David Golden, and Doug Bell.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
|
