kivitendo/SL/LXDebug.pm @ a03e4841
| d319704a | Moritz Bunkus | package LXDebug;
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| d8e671e9 | Sven Schöling | use constant NONE => 0;
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use constant INFO => 1;
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use constant DEBUG1 => 1 << 1;
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use constant DEBUG2 => 1 << 2;
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use constant QUERY => 1 << 3;
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use constant TRACE => 1 << 4;
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use constant BACKTRACE_ON_ERROR => 1 << 5;
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| eb69ed59 | Moritz Bunkus | use constant REQUEST_TIMER => 1 << 6;
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| e8557567 | Sven Schöling | use constant REQUEST => 1 << 7;
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use constant WARN => 1 << 8;
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use constant TRACE2 => 1 << 9;
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| 072caebf | Moritz Bunkus | use constant SHOW_CALLER => 1 << 10;
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use constant ALL => (1 << 11) - 1;
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| edbbcd58 | Moritz Bunkus | use constant DEVEL => INFO | DEBUG1 | QUERY | TRACE | BACKTRACE_ON_ERROR | REQUEST_TIMER;
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| d319704a | Moritz Bunkus | |||
| 5d0421a3 | Moritz Bunkus | use constant FILE_TARGET => 0;
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use constant STDERR_TARGET => 1;
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| d319704a | Moritz Bunkus | |||
| 0bf192cd | Moritz Bunkus | use Data::Dumper;
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| 42985d5f | Moritz Bunkus | use List::MoreUtils qw(all);
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| 961c002e | Moritz Bunkus | use POSIX qw(strftime getpid);
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| 42985d5f | Moritz Bunkus | use Scalar::Util qw(blessed refaddr weaken looks_like_number);
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| eb69ed59 | Moritz Bunkus | use Time::HiRes qw(gettimeofday tv_interval);
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| e8557567 | Sven Schöling | use SL::Request ();
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| 65b2387a | Moritz Bunkus | use SL::YAML;
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| 325974c2 | Moritz Bunkus | |||
| ed944ca3 | Sven Schöling | use strict;
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| 313c7c4d | Sven Schöling | use utf8;
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| ed944ca3 | Sven Schöling | |||
| 0bf192cd | Moritz Bunkus | my ($text_diff_available);
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| d319704a | Moritz Bunkus | |||
| 0bf192cd | Moritz Bunkus | our $global_level = NONE();
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our $watch_form = 0;
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| 1aa5f1b3 | Moritz Bunkus | our $file_name;
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| e7191bc2 | Moritz Bunkus | |||
| d319704a | Moritz Bunkus | sub new {
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my $type = shift;
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my $self = {};
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| 82bb6389 | Moritz Bunkus | _init_globals_from_config();
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| d319704a | Moritz Bunkus | $self->{"calldepth"} = 0;
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| 1aa5f1b3 | Moritz Bunkus | $self->{"file"} = $file_name || "/tmp/lx-office-debug.log";
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| d319704a | Moritz Bunkus | $self->{"target"} = FILE_TARGET;
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$self->{"level"} = 0;
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while ($_[0]) {
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$self->{ $_[0] } = $_[1];
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shift;
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shift;
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}
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bless($self, $type);
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}
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| 82bb6389 | Moritz Bunkus | my $globals_inited_from_config;
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sub _init_globals_from_config {
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return if $globals_inited_from_config;
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$globals_inited_from_config = 1;
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my $cfg = $::lx_office_conf{debug} || {};
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$global_level = NONE() if $cfg->{global_level} =~ /NONE/;
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foreach my $level (grep { $_} split(m/\s+/, $cfg->{global_level})) {
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$global_level |= eval "${level}()";
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}
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$watch_form = $cfg->{watch_form};
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$file_name = $cfg->{file_name} || "/tmp/lx-office-debug.log";
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}
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| d319704a | Moritz Bunkus | sub set_target {
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my ($self, $target, $file) = @_;
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if ((FILE_TARGET == $target) && $file) {
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$self->{"file"} = $file;
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$self->{"target"} = FILE_TARGET;
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} elsif (STDERR_TARGET == $target) {
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$self->{"target"} = STDERR_TARGET;
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}
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}
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sub enter_sub {
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| 847d924b | Sven Schöling | my $self = shift;
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my $level = shift || 0;
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| 8c6efb2a | Moritz Bunkus | |||
| bce420e0 | Sven Schöling | return 1 unless ($global_level & TRACE); # ignore if traces aren't active
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| edbbcd58 | Moritz Bunkus | return 1 if $level && !($global_level & TRACE2); # ignore if level of trace isn't active
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| d319704a | Moritz Bunkus | |||
my ($package, $filename, $line, $subroutine) = caller(1);
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my ($dummy1, $self_filename, $self_line) = caller(0);
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| bce420e0 | Sven Schöling | my $indent = " " x $self->{"calldepth"}++;
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| ffd8667e | Moritz Bunkus | my $time = $self->get_request_time || '';
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| d319704a | Moritz Bunkus | |||
if (!defined($package)) {
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| 592ca077 | Sven Schöling | $self->_write('sub' . $level, $indent . "\\ $time top-level?\n");
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| d319704a | Moritz Bunkus | } else {
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| bce420e0 | Sven Schöling | $self->_write('sub' . $level, $indent
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| 592ca077 | Sven Schöling | . "\\ $time ${subroutine} in "
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| d319704a | Moritz Bunkus | . "${self_filename}:${self_line} called from "
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. "${filename}:${line}\n");
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}
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| 54e4131e | Moritz Bunkus | return 1;
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| d319704a | Moritz Bunkus | }
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sub leave_sub {
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| 847d924b | Sven Schöling | my $self = shift;
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my $level = shift || 0;
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| 8c6efb2a | Moritz Bunkus | |||
| bce420e0 | Sven Schöling | return 1 unless ($global_level & TRACE); # ignore if traces aren't active
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| edbbcd58 | Moritz Bunkus | return 1 if $level && !($global_level & TRACE2); # ignore if level of trace isn't active
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| d319704a | Moritz Bunkus | |||
my ($package, $filename, $line, $subroutine) = caller(1);
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my ($dummy1, $self_filename, $self_line) = caller(0);
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| bce420e0 | Sven Schöling | my $indent = " " x --$self->{"calldepth"};
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| da8bd00b | Sven Schöling | my $time = $self->want_request_timer ? $self->get_request_time || '' : '';
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| d319704a | Moritz Bunkus | |||
if (!defined($package)) {
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| 592ca077 | Sven Schöling | $self->_write('sub' . $level, $indent . "/ $time top-level?\n");
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| d319704a | Moritz Bunkus | } else {
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| 592ca077 | Sven Schöling | $self->_write('sub' . $level, $indent . "/ $time ${subroutine} in " . "${self_filename}:${self_line}\n");
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| d319704a | Moritz Bunkus | }
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| 54e4131e | Moritz Bunkus | return 1;
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| d319704a | Moritz Bunkus | }
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| 142f7c2c | Moritz Bunkus | sub show_backtrace {
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| 8c7e4493 | Moritz Bunkus | my ($self, $force) = @_;
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| 4b17bfa8 | Moritz Bunkus | |||
| 8c7e4493 | Moritz Bunkus | return 1 unless ($force || ($global_level & BACKTRACE_ON_ERROR));
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| 4b17bfa8 | Moritz Bunkus | |||
| ab50a7d4 | Sven Schöling | $self->message(0, "Starting full caller dump:");
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| 4b17bfa8 | Moritz Bunkus | my $level = 0;
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while (my ($dummy, $filename, $line, $subroutine) = caller $level) {
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| ab50a7d4 | Sven Schöling | $self->message(0, " ${subroutine} from ${filename}:${line}");
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| 4b17bfa8 | Moritz Bunkus | $level++;
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}
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return 1;
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}
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| d319704a | Moritz Bunkus | sub message {
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| 847d924b | Sven Schöling | no warnings;
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| d319704a | Moritz Bunkus | my ($self, $level, $message) = @_;
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| bbb608a0 | Moritz Bunkus | |||
| 072caebf | Moritz Bunkus | my $show_caller = ($level | $global_level) & SHOW_CALLER();
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$level &= ~SHOW_CALLER();
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$self->_write(level2string($level), $message, show_caller => $show_caller) if (($self->{"level"} | $global_level) & $level || !$level);
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| d319704a | Moritz Bunkus | }
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| 847d924b | Sven Schöling | sub warn {
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no warnings;
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my ($self, $message) = @_;
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$self->message(WARN, $message);
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}
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| d319704a | Moritz Bunkus | |||
| c569daa1 | Moritz Bunkus | sub clone_for_dump {
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my ($src, $dumped) = @_;
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| 7aa53210 | Moritz Bunkus | |||
| c569daa1 | Moritz Bunkus | return undef if !defined($src);
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| 5c350994 | Moritz Bunkus | return $src if !ref($src);
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| 7aa53210 | Moritz Bunkus | |||
| c569daa1 | Moritz Bunkus | $dumped ||= {};
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my $addr = refaddr($src);
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| 7aa53210 | Moritz Bunkus | |||
| c569daa1 | Moritz Bunkus | return $dumped->{$addr} if $dumped->{$addr // ''};
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| 7aa53210 | Moritz Bunkus | |||
| c569daa1 | Moritz Bunkus | if (blessed($src) && $src->can('as_debug_info')) {
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$dumped->{$addr} = $src->as_debug_info;
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| 7aa53210 | Moritz Bunkus | |||
| c569daa1 | Moritz Bunkus | } elsif (ref($src) eq 'ARRAY') {
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$dumped->{$addr} = [];
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| 7aa53210 | Moritz Bunkus | |||
| c569daa1 | Moritz Bunkus | foreach my $entry (@{ $src }) {
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my $exists = !!$dumped->{refaddr($entry) // ''};
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push @{ $dumped->{$addr} }, clone_for_dump($entry, $dumped);
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| 7aa53210 | Moritz Bunkus | |||
| c569daa1 | Moritz Bunkus | weaken($dumped->{$addr}->[-1]) if $exists;
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| 7aa53210 | Moritz Bunkus | |||
| c569daa1 | Moritz Bunkus | }
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| 7aa53210 | Moritz Bunkus | |||
| c569daa1 | Moritz Bunkus | } elsif (ref($src) =~ m{^(?:HASH|Form|SL::.+)$}) {
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$dumped->{$addr} = {};
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| 7aa53210 | Moritz Bunkus | |||
| c569daa1 | Moritz Bunkus | foreach my $key (keys %{ $src }) {
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my $exists = !!$dumped->{refaddr($src->{$key}) // ''};
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$dumped->{$addr}->{$key} = clone_for_dump($src->{$key}, $dumped);
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| 7aa53210 | Moritz Bunkus | |||
| c569daa1 | Moritz Bunkus | weaken($dumped->{$addr}->{$key}) if $exists;
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| 7aa53210 | Moritz Bunkus | }
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| c569daa1 | Moritz Bunkus | }
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return $dumped->{$addr} // "$src";
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}
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| 7aa53210 | Moritz Bunkus | |||
| c569daa1 | Moritz Bunkus | sub dump {
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my ($self, $level, $name, $variable, %options) = @_;
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| 7aa53210 | Moritz Bunkus | |||
| c569daa1 | Moritz Bunkus | $variable = clone_for_dump($variable);
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| 9c1048cc | Moritz Bunkus | my $dumper = Data::Dumper->new([$variable]);
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$dumper->Sortkeys(1);
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$dumper->Indent(2);
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$dumper->$_($options{$_}) for keys %options;
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my $output = $dumper->Dump();
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$self->message($level, "dumping ${name}:\n" . $output);
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return $output;
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| d319704a | Moritz Bunkus | }
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| 325974c2 | Moritz Bunkus | sub dump_yaml {
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my ($self, $level, $name, $variable) = @_;
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| 65b2387a | Moritz Bunkus | $self->message($level, "dumping ${name}:\n" . SL::YAML::Dump($variable));
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| 325974c2 | Moritz Bunkus | }
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| c4c2f760 | Moritz Bunkus | sub dump_sql_result {
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my ($self, $level, $prefix, $results) = @_;
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if (!$results || !scalar @{ $results }) {
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$self->message($level, "Empty result set");
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return;
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}
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| 6e00b261 | Moritz Bunkus | my %column_lengths = map { $_, length $_ } keys %{ $results->[0] };
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| c4c2f760 | Moritz Bunkus | |||
foreach my $row (@{ $results }) {
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map { $column_lengths{$_} = length $row->{$_} if (length $row->{$_} > $column_lengths{$_}) } keys %{ $row };
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}
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| 42985d5f | Moritz Bunkus | my %alignment;
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foreach my $column (keys %column_lengths) {
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my $all_look_like_number = all { (($_->{$column} // '') eq '') || looks_like_number($_->{$column}) } @{ $results };
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$alignment{$column} = $all_look_like_number ? '' : '-';
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}
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| c4c2f760 | Moritz Bunkus | my @sorted_names = sort keys %column_lengths;
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| 42985d5f | Moritz Bunkus | my $format = join '|', map { '%' . $alignment{$_} . $column_lengths{$_} . 's' } @sorted_names;
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| c4c2f760 | Moritz Bunkus | |||
| 54272ac3 | Moritz Bunkus | $prefix .= ' ' if $prefix;
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| c4c2f760 | Moritz Bunkus | |||
$self->message($level, $prefix . sprintf($format, @sorted_names));
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$self->message($level, $prefix . join('+', map { '-' x $column_lengths{$_} } @sorted_names));
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foreach my $row (@{ $results }) {
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$self->message($level, $prefix . sprintf($format, map { $row->{$_} } @sorted_names));
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}
|
||||
$self->message($level, $prefix . sprintf('(%d row%s)', scalar @{ $results }, scalar @{ $results } > 1 ? 's' : ''));
|
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}
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| c92dddcb | Moritz Bunkus | sub show_diff {
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my ($self, $level, $item1, $item2, %params) = @_;
|
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if (!$self->_load_text_diff) {
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$self->warn("Perl module Text::Diff is not available");
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return;
|
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}
|
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| 65b2387a | Moritz Bunkus | my @texts = map { ref $_ ? SL::YAML::Dump($_) : $_ } ($item1, $item2);
|
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| c92dddcb | Moritz Bunkus | |||
$self->message($level, Text::Diff::diff(\$texts[0], \$texts[1], \%params));
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}
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sub _load_text_diff {
|
||||
$text_diff_available = eval("use Text::Diff (); 1;") ? 1 : 0 unless defined $text_diff_available;
|
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return $text_diff_available;
|
||||
}
|
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| d319704a | Moritz Bunkus | sub enable_sub_tracing {
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my ($self) = @_;
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||||
| 7de14911 | Sven Schöling | $global_level |= TRACE;
|
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| d319704a | Moritz Bunkus | }
|
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sub disable_sub_tracing {
|
||||
my ($self) = @_;
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||||
| 7de14911 | Sven Schöling | $global_level &= ~ TRACE;
|
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| d319704a | Moritz Bunkus | }
|
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| 3ac44613 | Sven Schöling | sub is_tracing_enabled {
|
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my ($self) = @_;
|
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| 7de14911 | Sven Schöling | return $global_level & TRACE;
|
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| 3ac44613 | Sven Schöling | }
|
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| d319704a | Moritz Bunkus | sub _write {
|
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| 847d924b | Sven Schöling | no warnings;
|
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| 072caebf | Moritz Bunkus | my ($self, $prefix, $message, %options) = @_;
|
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my @prefixes = ($prefix);
|
||||
if ($options{show_caller}) {
|
||||
| d0693cf4 | Moritz Bunkus | my $level = 1;
|
||
while (1) {
|
||||
my ($package, $filename, $line, $subroutine) = caller($level);
|
||||
if (($filename // '') =~ m{LXDebug\.pm$}) {
|
||||
$level++;
|
||||
next;
|
||||
}
|
||||
push @prefixes, "${filename}:${line}";
|
||||
last;
|
||||
}
|
||||
| 072caebf | Moritz Bunkus | }
|
||
$prefix = join ' ', grep { $_ } @prefixes;
|
||||
| 278523a4 | Moritz Bunkus | my @now = gettimeofday();
|
||
| 961c002e | Moritz Bunkus | my $date = strftime("%Y-%m-%d %H:%M:%S." . sprintf('%03d', int($now[1] / 1000)) . " $$ [" . getpid() . "] ${prefix}: ", localtime($now[0]));
|
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| d319704a | Moritz Bunkus | local *FILE;
|
||
chomp($message);
|
||||
| e8557567 | Sven Schöling | $self->_write_raw("${date}${message}\n");
|
||
}
|
||||
| d319704a | Moritz Bunkus | |||
| e8557567 | Sven Schöling | sub _write_raw {
|
||
my ($self, $message) = @_;
|
||||
local *FILE;
|
||||
| d319704a | Moritz Bunkus | if ((FILE_TARGET == $self->{"target"})
|
||
| 7274f9c8 | Sven Schöling | && open(FILE, ">>", $self->{"file"})) {
|
||
| a2db325a | Moritz Bunkus | binmode FILE, ":utf8";
|
||
| e8557567 | Sven Schöling | print FILE $message;
|
||
close FILE;
|
||||
| d319704a | Moritz Bunkus | |||
| 20a08305 | Moritz Bunkus | } elsif (STDERR_TARGET == $self->{"target"}) {
|
||
| e8557567 | Sven Schöling | print STDERR $message;
|
||
| d319704a | Moritz Bunkus | }
|
||
}
|
||||
| bce420e0 | Sven Schöling | sub level2string {
|
||
| 847d924b | Sven Schöling | no warnings;
|
||
| bce420e0 | Sven Schöling | # use $_[0] as a bit mask and return levelstrings separated by /
|
||
| a4d4aaa1 | Moritz Bunkus | join '/', qw(info debug1 debug2 query trace error_call_trace request_timer request WARNING trace2 show_caller)[ grep { (reverse split //, sprintf "%011b", $_[0])[$_] } 0..11 ]
|
||
| bce420e0 | Sven Schöling | }
|
||
| eb69ed59 | Moritz Bunkus | sub begin_request {
|
||
my $self = shift;
|
||||
| 592ca077 | Sven Schöling | return 1 unless want_request_timer();
|
||
$self->set_request_timer;
|
||||
| eb69ed59 | Moritz Bunkus | }
|
||
sub end_request {
|
||||
| 028cd4a6 | Moritz Bunkus | my ($self, %params) = @_;
|
||
| 592ca077 | Sven Schöling | return 1 unless want_request_timer();
|
||
| 028cd4a6 | Moritz Bunkus | |||
$self->_write("time", sprintf('%f (%s/%s)', $self->get_request_time, $params{script_name}, $params{action}));
|
||||
| e9238b7d | Sven Schöling | |||
$self->{calldepth} = 0;
|
||||
| eb69ed59 | Moritz Bunkus | }
|
||
| 8fac2b08 | Sven Schöling | sub log_time {
|
||
| c90d3558 | Sven Schöling | my ($self, @slurp) = @_;
|
||
| 8fac2b08 | Sven Schöling | return 1 unless want_request_timer();
|
||
| 52e676cf | Moritz Bunkus | |||
my $now = $self->get_request_time;
|
||||
| 5313b0e8 | Sven Schöling | |||
return 1 unless $now;
|
||||
my $diff = $self->{previous_log_time} ? int((($now - ($self->{previous_log_time} // 0)) * 10_000 + 5) / 10) : $now * 10_0000 + 5;
|
||||
| 52e676cf | Moritz Bunkus | $self->{previous_log_time} = $now;
|
||
$self->_write("time", "${now}s Δ ${diff}ms" . (@slurp ? " (@slurp)" : ''));
|
||||
| 8fac2b08 | Sven Schöling | }
|
||
| 592ca077 | Sven Schöling | sub get_request_time {
|
||
my $self = shift;
|
||||
| ffd8667e | Moritz Bunkus | return $self->want_request_timer && $self->{request_start} ? tv_interval($self->{request_start}) : undef;
|
||
| 592ca077 | Sven Schöling | }
|
||
sub set_request_timer {
|
||||
my $self = shift;
|
||||
$self->{request_start} = [gettimeofday];
|
||||
}
|
||||
sub want_request_timer {
|
||||
$global_level & REQUEST_TIMER;
|
||||
}
|
||||
| 97358b9b | Sven Schöling | sub file {
|
||
@_ == 2 ? $_[0]->{file} = $_[1] : $_[0]->{file};
|
||||
}
|
||||
| 3e8a8c57 | Sven Schöling | sub _by_name {
|
||
my ($self, $level) = @_;
|
||||
my $meth = $self->can(uc $level);
|
||||
die 'unknown level' unless $meth;
|
||||
$meth->();
|
||||
}
|
||||
sub level_by_name {
|
||||
my ($self, $level, $val) = @_;
|
||||
if (@_ == 3) {
|
||||
$global_level |= $self->_by_name($level) if $val;
|
||||
$global_level &= ~$self->_by_name($level) if !$val;
|
||||
}
|
||||
return $global_level & $self->_by_name($level);
|
||||
}
|
||||
| e8557567 | Sven Schöling | sub is_request_logging_enabled {
|
||
my ($self) = @_;
|
||||
return $global_level & REQUEST;
|
||||
}
|
||||
sub add_request_params {
|
||||
my ($self, $key, $value) = @_;
|
||||
return unless $self->is_request_logging_enabled;
|
||||
return if $key =~ /password/;
|
||||
push @{ $::request->{debug}{PARAMS} ||= [] }, [ $key => $value ];
|
||||
}
|
||||
sub log_request {
|
||||
my ($self, $type, $controller, $action) = @_;
|
||||
return unless $self->is_request_logging_enabled;
|
||||
my $session_id = $::auth->create_or_refresh_session;
|
||||
my $template = <<EOL;
|
||||
*************************************
|
||||
| 78d6af85 | Sven Schöling | $ENV{REQUEST_METHOD} $ENV{SCRIPT_NAME} $session_id ($::myconfig{login})
|
||
| e8557567 | Sven Schöling | routing: $type, controller: $controller, action: $action
|
||
EOL
|
||||
$self->_write('Request', $template);
|
||||
my $params = join "\n ", map {
|
||||
"$_->[0] = $_->[1]"
|
||||
} @{ $::request->{debug}{PARAMS} || [] };
|
||||
$self->_write_raw(<<EOL);
|
||||
Params
|
||||
$params
|
||||
EOL
|
||||
}
|
||||
| d319704a | Moritz Bunkus | 1;
|
||
| 5cc1afa0 | Moritz Bunkus | __END__
|
||
=pod
|
||||
=encoding utf8
|
||||
=head1 NAME
|
||||
| 008c2e15 | Moritz Bunkus | LXDebug - kivitendo debugging facilities
|
||
| 5cc1afa0 | Moritz Bunkus | |||
=head1 SYNOPSIS
|
||||
| 008c2e15 | Moritz Bunkus | This module provides functions for debugging kivitendo. An instance is
|
||
| 5cc1afa0 | Moritz Bunkus | always created as the global variable C<$::lxdebug> at the earliest
|
||
possible moment.
|
||||
Debugging is mostly logging of information. Each log function has a
|
||||
I<level> and an I<object> to be logged. The configuration file as well
|
||||
as this module's functions determine which levels get logged, and
|
||||
which file they're logged to.
|
||||
=head1 LOG LEVELS
|
||||
The available log levels are:
|
||||
=over 4
|
||||
=item C<NONE>
|
||||
Always output the message regardless of the active levels. Only use
|
||||
this temporarily.
|
||||
=item C<INFO>
|
||||
Informational, not an error, more important than C<DEBUG1>.
|
||||
=item C<DEBUG1>
|
||||
Important debugging information.
|
||||
=item C<DEBUG2>
|
||||
Less important debugging information that occurs often and spams the
|
||||
log.
|
||||
=item C<QUERY>
|
||||
Log all queries executed by the L<SL::DBUtils> utility methods.
|
||||
=item C<TRACE>
|
||||
| edbbcd58 | Moritz Bunkus | Log sub calls and exits via the L<enter_sub>/L<leave_sub> functions,
|
||
but only if they're called with a log level that is falsish
|
||||
(e.g. none, C<undef>, 0).
|
||||
=item C<TRACE2>
|
||||
Log sub calls and exits via the L<enter_sub>/L<leave_sub> functions
|
||||
even if they're called with a log level of 2. Will only have an effect
|
||||
if C<TRACE> is set as well.
|
||||
| 5cc1afa0 | Moritz Bunkus | |||
=item C<BACKTRACE_ON_ERROR>
|
||||
Log a stack trace when an error is output.
|
||||
=item C<REQUEST_TIMER>
|
||||
Log each request's total execution time when it finishes.
|
||||
=item C<WARN>
|
||||
Important warnings.
|
||||
=item C<ALL>
|
||||
All of the above.
|
||||
=item C<DEVEL>
|
||||
Shortcut for C<INFO | QUERY | TRACE | BACKTRACE_ON_ERROR | REQUEST_TIMER>.
|
||||
=back
|
||||
| 874a3b3d | Moritz Bunkus | =head1 CONFIGURATION
|
||
C<SL::LXDebug> gets its configuration from the C<[debug]> section of
|
||||
| 4bacfb02 | Moritz Bunkus | the C<config/kivitendo.conf> configuration file. The available options
|
||
| 874a3b3d | Moritz Bunkus | are:
|
||
=over 4
|
||||
=item C<global_level>
|
||||
A string of log level names that should be activated by
|
||||
default. Multiple log levels are separated by C<|>.
|
||||
=item C<watch_form>
|
||||
A boolean (C<1> or C<0>). Turns on the C<$::form> watch facility. If
|
||||
this is enabled then any key inside C<$::form> can be monitored for
|
||||
changes. For example:
|
||||
# Start watching 'action'
|
||||
$::form->{"Watchdog::action"} = 1;
|
||||
# Stop watching 'invtotal'
|
||||
$::form->{"Watchdog::invtotal"} = 0;
|
||||
A log message is written when the watchdog is enabled for a variable
|
||||
and for each subsequent change. The log message includes the place
|
||||
(file name and line number) of the instruction changing the key.
|
||||
Note that this entails a performance penalty. Also only the keys
|
||||
themselves are monitored -- not the references they point to. E.g. the
|
||||
following would not trigger a change:
|
||||
$::form->{"Watchdog::some_hash"} = 1;
|
||||
# Does not trigger:
|
||||
$::form->{some_hash}->{some_value} = 42;
|
||||
# This does trigger:
|
||||
$::form->{some_hash} = { something => 'else' };
|
||||
=item C<keep_temp_files>
|
||||
A boolean (C<1> or C<0>). If turned on then certain temporary files
|
||||
are not removed but kept in the C<users> directory. These include the
|
||||
temporary files used during printing, e.g. LaTeX files.
|
||||
=item C<file_name>
|
||||
The path and file name of the debug log file. Must be a location
|
||||
writeable by the web server process.
|
||||
=back
|
||||
| 5cc1afa0 | Moritz Bunkus | =head1 FUNCTIONS
|
||
=over 4
|
||||
=item C<enter_sub [$level]>
|
||||
=item C<leave_sub [$level]>
|
||||
Pairs of these can be put near the beginning/end of a sub. They'll
|
||||
cause a trace to be written to the log file if the C<TRACE> level is
|
||||
active.
|
||||
| edbbcd58 | Moritz Bunkus | If C<$level> is given then the log messages will only be logged if the
|
||
global log level C<TRACE2> is active as well.
|
||||
| 5cc1afa0 | Moritz Bunkus | |||
=item C<enable_sub_tracing>
|
||||
=item C<disable_sub_tracing>
|
||||
Enables/disables sub tracing with L<enter_sub>/L<leave_sub> temporarily.
|
||||
=item C<is_tracing_enabled>
|
||||
Returns whether or not the C<TRACE> debug level is active.
|
||||
=item C<show_backtrace [$force]>
|
||||
Logs a stack backtrace if C<$force> is trueish or if the log level
|
||||
C<BACKTRACE_ON_ERROR> is active.
|
||||
=item C<message $level, $message>
|
||||
Logs the message C<$message> if the log level C<$level> is active. The
|
||||
message will be prefixed with a word describing the log level.
|
||||
=item C<warn $message>
|
||||
Equivalent to C<message WARN(), $message>.
|
||||
=item C<dump $level, $name, $variable>
|
||||
Logs a message that the variable named C<$name> is dumped along with a
|
||||
dump of the variable C<$variable> created by the L<Data::Dumper>
|
||||
module. Will log a warning if said module is not available. Will only
|
||||
log if the log level C<$level> is active.
|
||||
=item C<dump_yaml $level, $name, $variable>
|
||||
Logs a message that the variable named C<$name> is dumped along with a
|
||||
dump of the variable C<$variable> created by the C<YAML> module. Will
|
||||
only log if the log level C<$level> is active.
|
||||
=item C<dump_sql $level, $prefix, $results>
|
||||
Dumps the result of an SQL query in tabular form. Will only log if the
|
||||
log level C<$level> is active.
|
||||
=item C<show_diff $level, $item1, $item2, %params>
|
||||
Logs a unified diff of the textual representations of C<$item1> and
|
||||
C<$item2>. Requires the module L<Text::Diff> and logs a warning if
|
||||
said module is not available.
|
||||
C<$item1> and C<$item2> are dumped via L<YAML::Dumper> before diffing
|
||||
if they're non-scalars.
|
||||
Will only log if the log level C<$level> is active.
|
||||
=item C<begin_request>
|
||||
=item C<end_request>
|
||||
=item C<log_time>
|
||||
=item C<set_request_timer>
|
||||
=item C<want_request_timer>
|
||||
Internal functions used to log the current request's exeuction time
|
||||
(log level C<REQUEST_TIMER>).
|
||||
=item C<get_request_time>
|
||||
Returns the current request's elapsed execution time in seconds.
|
||||
=item C<file [$file_name]>
|
||||
Sets and/or returns the file name this instance logs to.
|
||||
=item C<level_by_name $level[, $val]>
|
||||
Returns if a log level C<$level> is active. C<$level> is a string
|
||||
representation, not one of the level constants from above.
|
||||
If C<$val> is given then said level will be turned on (if C<$val> is
|
||||
trueish) or off (if C<$val> is falsish).
|
||||
=back
|
||||
=head1 BUGS
|
||||
Nothing here yet.
|
||||
=head1 AUTHOR
|
||||
Moritz Bunkus E<lt>m.bunkus@linet-services.deE<gt>,
|
||||
Sven Schöling E<lt>s.schoeling@linet-services.deE<gt>
|
||||
=cut
|