File Coverage

blib/lib/Carp/Patch/OutputToBrowser.pm

Criterion	Covered	Total	%
statement	23	24	95.8
branch			n/a
condition			n/a
subroutine	8	9	88.8
pod	0	1	0.0
total	31	34	91.1

## no critic: TestingAndDebugging::RequireUseStrict
package Carp::Patch::OutputToBrowser;

use 5.010001;
#use strict 'vars';
no warnings;

use Browser::Open qw(open_browser);
use Data::Dump::HTML::Collapsible qw(dump);
use File::Temp qw(tempfile);
use HTML::Entities qw(encode_entities);
use Module::Patch;
use base qw(Module::Patch);

our $AUTHORITY = 'cpan:PERLANCAR'; # AUTHORITY
our $DATE = '2024-03-12'; # DATE
our $DIST = 'Carp-Patch-OutputToBrowser'; # DIST
our $VERSION = '0.001'; # VERSION

our %config;

my $p_ret_backtrace = sub {
    my ( $i, @error ) = @_;
    my $mess;
    my $err = join '', @error;
    $i++;

    my $tid_msg = '';
    if ( defined &threads::tid ) {
        my $tid = threads->tid;
        $tid_msg = " thread $tid" if $tid;
    }

    my %i = Carp::caller_info($i);
    $mess = "".encode_entities("$i. $err at $i{file} line $i{line}$tid_msg");
    if( $. ) {
      # Use ${^LAST_FH} if available.
      if (LAST_FH) {
        if (${+LAST_FH}) {
            $mess .= sprintf ", <%s> %s %d",
                              *${+LAST_FH}{NAME},
                              ($/ eq "\n" ? "line" : "chunk"), $.
        }
      }
      else {
        local $@ = '';
        local $SIG{__DIE__};
        eval {
            CORE::die;
        };
        if($@ =~ /^Died at .*(, <.*?> (?:line|chunk) \d+).$/ ) {
            $mess .= $1;
        }
      }
    }
    $mess .= "\.\n";

    while ( my %i = Carp::caller_info( ++$i ) ) {
        $mess .= "\t$i{sub_name} called at $i{file} line $i{line}$tid_msg\n";
    }

    my ($temp_fh, $temp_filename) = tempfile("stacktrace-XXXXXXXX", SUFFIX=>".html", TMPDIR=>1) or die;
    print $temp_fh $mess;
    close $temp_fh;
    open_browser($temp_filename);

    return "Backtrace is output to $temp_filename and opened in browser\n";
};

sub patch_data {
    return {
        v => 3,
        config => {
        },
        patches => [
            {
                action      => 'replace',
                sub_name    => 'ret_backtrace',
                code        => $p_ret_backtrace,
            },
        ],
   };
}

1;
# ABSTRACT: Output stacktrace to browser as HTML instead of returning it

__END__