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package TAP::Harness::Env; use strict; use warnings; use constant IS_VMS => ( $^O eq 'VMS' ); use TAP::Object; use Text::ParseWords qw/shellwords/; our $VERSION = '3.42'; # Get the parts of @INC which are changed from the stock list AND # preserve reordering of stock directories. sub _filtered_inc_vms { my @inc = grep { !ref } @INC; #28567 # VMS has a 255-byte limit on the length of %ENV entries, so # toss the ones that involve perl_root, the install location @inc = grep { !/perl_root/i } @inc; my @default_inc = _default_inc(); my @new_inc; my %seen; for my $dir (@inc) { next if $seen{$dir}++; if ( $dir eq ( $default_inc[0] \|\| '' ) ) { shift @default_inc; } else { push @new_inc, $dir; } shift @default_inc while @default_inc and $seen{ $default_inc[0] }; } return @new_inc; } # Cache this to avoid repeatedly shelling out to Perl. my @inc; sub _default_inc { return @inc if @inc; local $ENV{PERL5LIB}; local $ENV{PERLLIB}; my $perl = $ENV{HARNESS_PERL} \|\| $^X; # Avoid using -l for the benefit of Perl 6 chomp( @inc = `"$perl" -e "print join qq[\\n], \@INC, q[]"` ); return @inc; } sub create { my $package = shift; my %input = %{ shift \|\| {} }; my @libs = @{ delete $input{libs} \|\| [] }; my @raw_switches = @{ delete $input{switches} \|\| [] }; my @opt = ( @raw_switches, shellwords( $ENV{HARNESS_PERL_SWITCHES} \|\| '' ) ); my @switches; while ( my $opt = shift @opt ) { if ( $opt =~ /^ -I (.) $ /x ) { push @libs, length($1) ? $1 : shift @opt; } else { push @switches, $opt; } } # Do things the old way on VMS... push @libs, _filtered_inc_vms() if IS_VMS; # If $Verbose isn't numeric default to 1. This helps core. my $verbose = $ENV{HARNESS_VERBOSE} ? $ENV{HARNESS_VERBOSE} !~ /\d/ ? 1 : $ENV{HARNESS_VERBOSE} : 0; my %args = ( lib => \@libs, timer => $ENV{HARNESS_TIMER} \|\| 0, switches => \@switches, color => $ENV{HARNESS_COLOR} \|\| 0, verbosity => $verbose, ignore_exit => $ENV{HARNESS_IGNORE_EXIT} \|\| 0, ); my $class = delete $input{harness_class} \|\| $ENV{HARNESS_SUBCLASS} \|\| 'TAP::Harness'; if ( defined( my $env_opt = $ENV{HARNESS_OPTIONS} ) ) { for my $opt ( split /:/, $env_opt ) { if ( $opt =~ /^j(\d)$/ ) { $args{jobs} = $1 \|\| 9; } elsif ( $opt eq 'c' ) { $args{color} = 1; } elsif ( $opt =~ m/^f(.)$/ ) { my $fmt = $1; $fmt =~ s/-/::/g; $args{formatter_class} = $fmt; } elsif ( $opt =~ m/^a(.)$/ ) { my $archive = $1; $class = 'TAP::Harness::Archive'; $args{archive} = $archive; } else { die "Unknown HARNESS_OPTIONS item: $opt\n"; } } } return TAP::Object->_construct($class, { %args, %input }); } 1; =head1 NAME TAP::Harness::Env - Parsing harness related environmental variables where appropriate =head1 VERSION Version 3.42 =head1 SYNOPSIS my $harness = TAP::Harness::Env->create(\%extra_args) =head1 DESCRIPTION This module implements the environmental variables that L<Test::Harness> uses with TAP::Harness, and instantiates the appropriate class with the appropriate arguments. =head1 METHODS =over 4 =item * create( \%args ) This function reads the environment and generates an appropriate argument hash from it. If given any arguments in C<%extra_args>, these will override the environmental defaults. In accepts C<harness_class> (which defaults to C<TAP::Harness>), and any argument the harness class accepts. =back =head1 ENVIRONMENTAL VARIABLES =over 4 =item C<HARNESS_PERL_SWITCHES> Setting this adds perl command line switches to each test file run. For example, C<HARNESS_PERL_SWITCHES=-T> will turn on taint mode. C<HARNESS_PERL_SWITCHES=-MDevel::Cover> will run C<Devel::Cover> for each test. =item C<HARNESS_VERBOSE> If true, C<TAP::Harness> will output the verbose results of running its tests. =item C<HARNESS_SUBCLASS> Specifies a TAP::Harness subclass to be used in place of TAP::Harness. =item C<HARNESS_OPTIONS> Provide additional options to the harness. Currently supported options are: =over =item C<< j<n> >> Run <n> (default 9) parallel jobs. =item C<< c >> Try to color output. See L<TAP::Formatter::Base/"new">. =item C<< a<file.tgz> >> Will use L<TAP::Harness::Archive> as the harness class, and save the TAP to C<file.tgz> =item C<< fPackage-With-Dashes >> Set the formatter_class of the harness being run. Since the C<HARNESS_OPTIONS> is seperated by C<:>, we use C<-> instead. =back Multiple options may be separated by colons: HARNESS_OPTIONS=j9:c make test =item C<HARNESS_TIMER> Setting this to true will make the harness display the number of milliseconds each test took. You can also use F<prove>'s C<--timer> switch. =item C<HARNESS_COLOR> Attempt to produce color output. =item C<HARNESS_IGNORE_EXIT> If set to a true value instruct C<TAP::Parser> to ignore exit and wait status from test scripts. =back

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