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package App::Prove;
use strict;
use warnings;
use TAP::Harness::Env;
use Text::ParseWords qw(shellwords);
use File::Spec;
use Getopt::Long;
use App::Prove::State;
use Carp;
use base 'TAP::Object';
=head1 NAME
App::Prove - Implements the C<prove> command.
=head1 VERSION
Version 3.38
=cut
our $VERSION = '3.38';
=head1 DESCRIPTION
L<Test::Harness> provides a command, C<prove>, which runs a TAP based
test suite and prints a report. The C<prove> command is a minimal
wrapper around an instance of this module.
=head1 SYNOPSIS
use App::Prove;
my $app = App::Prove->new;
$app->process_args(@ARGV);
$app->run;
=cut
use constant IS_WIN32 => ( $^O =~ /^(MS)?Win32$/ );
use constant IS_VMS => $^O eq 'VMS';
use constant IS_UNIXY => !( IS_VMS || IS_WIN32 );
use constant STATE_FILE => IS_UNIXY ? '.prove' : '_prove';
use constant RC_FILE => IS_UNIXY ? '.proverc' : '_proverc';
use constant PLUGINS => 'App::Prove::Plugin';
my @ATTR;
BEGIN {
@ATTR = qw(
archive argv blib show_count color directives exec failures comments
formatter harness includes modules plugins jobs lib merge parse quiet
really_quiet recurse backwards shuffle taint_fail taint_warn timer
verbose warnings_fail warnings_warn show_help show_man show_version
state_class test_args state dry extensions ignore_exit rules state_manager
normalize sources tapversion trap
);
__PACKAGE__->mk_methods(@ATTR);
}
=head1 METHODS
=head2 Class Methods
=head3 C<new>
Create a new C<App::Prove>. Optionally a hash ref of attribute
initializers may be passed.
=cut
# new() implementation supplied by TAP::Object
sub _initialize {
my $self = shift;
my $args = shift || {};
my @is_array = qw(
argv rc_opts includes modules state plugins rules sources
);
# setup defaults:
for my $key (@is_array) {
$self->{$key} = [];
}
for my $attr (@ATTR) {
if ( exists $args->{$attr} ) {
# TODO: Some validation here
$self->{$attr} = $args->{$attr};
}
}
$self->state_class('App::Prove::State');
return $self;
}
=head3 C<state_class>
Getter/setter for the name of the class used for maintaining state. This
class should either subclass from C<App::Prove::State> or provide an identical
interface.
=head3 C<state_manager>
Getter/setter for the instance of the C<state_class>.
=cut
=head3 C<add_rc_file>
$prove->add_rc_file('myproj/.proverc');
Called before C<process_args> to prepend the contents of an rc file to
the options.
=cut
sub add_rc_file {
my ( $self, $rc_file ) = @_;
local *RC;
open RC, "<$rc_file" or croak "Can't read $rc_file ($!)";
while ( defined( my $line = <RC> ) ) {
push @{ $self->{rc_opts} },
grep { defined and not /^#/ }
$line =~ m{ ' ([^']*) ' | " ([^"]*) " | (\#.*) | (\S+) }xg;
}
close RC;
}
=head3 C<process_args>
$prove->process_args(@args);
Processes the command-line arguments. Attributes will be set
appropriately. Any filenames may be found in the C<argv> attribute.
Dies on invalid arguments.
=cut
sub process_args {
my $self = shift;
my @rc = RC_FILE;
unshift @rc, glob '~/' . RC_FILE if IS_UNIXY;
# Preprocess meta-args.
my @args;
while ( defined( my $arg = shift ) ) {
if ( $arg eq '--norc' ) {
@rc = ();
}
elsif ( $arg eq '--rc' ) {
defined( my $rc = shift )
or croak "Missing argument to --rc";
push @rc, $rc;
}
elsif ( $arg =~ m{^--rc=(.+)$} ) {
push @rc, $1;
}
else {
push @args, $arg;
}
}
# Everything after the arisdottle '::' gets passed as args to
# test programs.
if ( defined( my $stop_at = _first_pos( '::', @args ) ) ) {
my @test_args = splice @args, $stop_at;
shift @test_args;
$self->{test_args} = \@test_args;
}
# Grab options from RC files
$self->add_rc_file($_) for grep -f, @rc;
unshift @args, @{ $self->{rc_opts} };
if ( my @bad = map {"-$_"} grep {/^-(man|help)$/} @args ) {
die "Long options should be written with two dashes: ",
join( ', ', @bad ), "\n";
}
# And finally...
{
local @ARGV = @args;
Getopt::Long::Configure(qw(no_ignore_case bundling pass_through));
# Don't add coderefs to GetOptions
GetOptions(
'v|verbose' => \$self->{verbose},
'f|failures' => \$self->{failures},
'o|comments' => \$self->{comments},
'l|lib' => \$self->{lib},
'b|blib' => \$self->{blib},
's|shuffle' => \$self->{shuffle},
'color!' => \$self->{color},
'colour!' => \$self->{color},
'count!' => \$self->{show_count},
'c' => \$self->{color},
'D|dry' => \$self->{dry},
'ext=s@' => sub {
my ( $opt, $val ) = @_;
# Workaround for Getopt::Long 2.25 handling of
# multivalue options
push @{ $self->{extensions} ||= [] }, $val;
},
'harness=s' => \$self->{harness},
'ignore-exit' => \$self->{ignore_exit},
'source=s@' => $self->{sources},
'formatter=s' => \$self->{formatter},
'r|recurse' => \$self->{recurse},
'reverse' => \$self->{backwards},
'p|parse' => \$self->{parse},
'q|quiet' => \$self->{quiet},
'Q|QUIET' => \$self->{really_quiet},
'e|exec=s' => \$self->{exec},
'm|merge' => \$self->{merge},
'I=s@' => $self->{includes},
'M=s@' => $self->{modules},
'P=s@' => $self->{plugins},
'state=s@' => $self->{state},
'directives' => \$self->{directives},
'h|help|?' => \$self->{show_help},
'H|man' => \$self->{show_man},
'V|version' => \$self->{show_version},
'a|archive=s' => \$self->{archive},
'j|jobs=i' => \$self->{jobs},
'timer' => \$self->{timer},
'T' => \$self->{taint_fail},
't' => \$self->{taint_warn},
'W' => \$self->{warnings_fail},
'w' => \$self->{warnings_warn},
'normalize' => \$self->{normalize},
'rules=s@' => $self->{rules},
'tapversion=s' => \$self->{tapversion},
'trap' => \$self->{trap},
) or croak('Unable to continue');
# Stash the remainder of argv for later
$self->{argv} = [@ARGV];
}
return;
}
sub _first_pos {
my $want = shift;
for ( 0 .. $#_ ) {
return $_ if $_[$_] eq $want;
}
return;
}
sub _help {
my ( $self, $verbosity ) = @_;
eval('use Pod::Usage 1.12 ()');
if ( my $err = $@ ) {
die 'Please install Pod::Usage for the --help option '
. '(or try `perldoc prove`.)'
. "\n ($@)";
}
Pod::Usage::pod2usage( { -verbose => $verbosity } );
return;
}
sub _color_default {
my $self = shift;
return -t STDOUT && !$ENV{HARNESS_NOTTY} && !IS_WIN32;
}
sub _get_args {
my $self = shift;
my %args;
$args{trap} = 1 if $self->trap;
if ( defined $self->color ? $self->color : $self->_color_default ) {
$args{color} = 1;
}
if ( !defined $self->show_count ) {
$args{show_count} = 1;
}
else {
$args{show_count} = $self->show_count;
}
if ( $self->archive ) {
$self->require_harness( archive => 'TAP::Harness::Archive' );
$args{archive} = $self->archive;
}
if ( my $jobs = $self->jobs ) {
$args{jobs} = $jobs;
}
if ( my $harness_opt = $self->harness ) {
$self->require_harness( harness => $harness_opt );
}
if ( my $formatter = $self->formatter ) {
$args{formatter_class} = $formatter;
}
for my $handler ( @{ $self->sources } ) {
my ( $name, $config ) = $self->_parse_source($handler);
$args{sources}->{$name} = $config;
}
if ( $self->ignore_exit ) {
$args{ignore_exit} = 1;
}
if ( $self->taint_fail && $self->taint_warn ) {
die '-t and -T are mutually exclusive';
}
if ( $self->warnings_fail && $self->warnings_warn ) {
die '-w and -W are mutually exclusive';
}
for my $a (qw( lib switches )) {
my $method = "_get_$a";
my $val = $self->$method();
$args{$a} = $val if defined $val;
}
# Handle verbose, quiet, really_quiet flags
my %verb_map = ( verbose => 1, quiet => -1, really_quiet => -2, );
my @verb_adj = grep {$_} map { $self->$_() ? $verb_map{$_} : 0 }
keys %verb_map;
die "Only one of verbose, quiet or really_quiet should be specified\n"
if @verb_adj > 1;
$args{verbosity} = shift @verb_adj || 0;
for my $a (qw( merge failures comments timer directives normalize )) {
$args{$a} = 1 if $self->$a();
}
$args{errors} = 1 if $self->parse;
# defined but zero-length exec runs test files as binaries
$args{exec} = [ split( /\s+/, $self->exec ) ]
if ( defined( $self->exec ) );
$args{version} = $self->tapversion if defined( $self->tapversion );
if ( defined( my $test_args = $self->test_args ) ) {
$args{test_args} = $test_args;
}
if ( @{ $self->rules } ) {
my @rules;
for ( @{ $self->rules } ) {
if (/^par=(.*)/) {
push @rules, $1;
}
elsif (/^seq=(.*)/) {
push @rules, { seq => $1 };
}
}
$args{rules} = { par => [@rules] };
}
$args{harness_class} = $self->{harness_class} if $self->{harness_class};
return \%args;
}
sub _find_module {
my ( $self, $class, @search ) = @_;
croak "Bad module name $class"
unless $class =~ /^ \w+ (?: :: \w+ ) *$/x;
for my $pfx (@search) {
my $name = join( '::', $pfx, $class );
eval "require $name";
return $name unless $@;
}
eval "require $class";
return $class unless $@;
return;
}
sub _load_extension {
my ( $self, $name, @search ) = @_;
my @args = ();
if ( $name =~ /^(.*?)=(.*)/ ) {
$name = $1;
@args = split( /,/, $2 );
}
if ( my $class = $self->_find_module( $name, @search ) ) {
$class->import(@args);
if ( $class->can('load') ) {
$class->load( { app_prove => $self, args => [@args] } );
}
}
else {
croak "Can't load module $name";
}
}
sub _load_extensions {
my ( $self, $ext, @search ) = @_;
$self->_load_extension( $_, @search ) for @$ext;
}
sub _parse_source {
my ( $self, $handler ) = @_;
# Load any options.
( my $opt_name = lc $handler ) =~ s/::/-/g;
local @ARGV = @{ $self->{argv} };
my %config;
Getopt::Long::GetOptions(
"$opt_name-option=s%" => sub {
my ( $name, $k, $v ) = @_;
if ( $v =~ /(?<!\\)=/ ) {
# It's a hash option.
croak "Option $name must be consistently used as a hash"
if exists $config{$k} && ref $config{$k} ne 'HASH';
$config{$k} ||= {};
my ( $hk, $hv ) = split /(?<!\\)=/, $v, 2;
$config{$k}{$hk} = $hv;
}
else {
$v =~ s/\\=/=/g;
if ( exists $config{$k} ) {
$config{$k} = [ $config{$k} ]
unless ref $config{$k} eq 'ARRAY';
push @{ $config{$k} } => $v;
}
else {
$config{$k} = $v;
}
}
}
);
$self->{argv} = \@ARGV;
return ( $handler, \%config );
}
=head3 C<run>
Perform whatever actions the command line args specified. The C<prove>
command line tool consists of the following code:
use App::Prove;
my $app = App::Prove->new;
$app->process_args(@ARGV);
exit( $app->run ? 0 : 1 ); # if you need the exit code
=cut
sub run {
my $self = shift;
unless ( $self->state_manager ) {
$self->state_manager(
$self->state_class->new( { store => STATE_FILE } ) );
}
if ( $self->show_help ) {
$self->_help(1);
}
elsif ( $self->show_man ) {
$self->_help(2);
}
elsif ( $self->show_version ) {
$self->print_version;
}
elsif ( $self->dry ) {
print "$_\n" for $self->_get_tests;
}
else {
$self->_load_extensions( $self->modules );
$self->_load_extensions( $self->plugins, PLUGINS );
local $ENV{TEST_VERBOSE} = 1 if $self->verbose;
return $self->_runtests( $self->_get_args, $self->_get_tests );
}
return 1;
}
sub _get_tests {
my $self = shift;
my $state = $self->state_manager;
my $ext = $self->extensions;
$state->extensions($ext) if defined $ext;
if ( defined( my $state_switch = $self->state ) ) {
$state->apply_switch(@$state_switch);
}
my @tests = $state->get_tests( $self->recurse, @{ $self->argv } );
$self->_shuffle(@tests) if $self->shuffle;
@tests = reverse @tests if $self->backwards;
return @tests;
}
sub _runtests {
my ( $self, $args, @tests ) = @_;
my $harness = TAP::Harness::Env->create($args);
my $state = $self->state_manager;
$harness->callback(
after_test => sub {
$state->observe_test(@_);
}
);
$harness->callback(
after_runtests => sub {
$state->commit(@_);
}
);
my $aggregator = $harness->runtests(@tests);
return !$aggregator->has_errors;
}
sub _get_switches {
my $self = shift;
my @switches;
# notes that -T or -t must be at the front of the switches!
if ( $self->taint_fail ) {
push @switches, '-T';
}
elsif ( $self->taint_warn ) {
push @switches, '-t';
}
if ( $self->warnings_fail ) {
push @switches, '-W';
}
elsif ( $self->warnings_warn ) {
push @switches, '-w';
}
return @switches ? \@switches : ();
}
sub _get_lib {
my $self = shift;
my @libs;
if ( $self->lib ) {
push @libs, 'lib';
}
if ( $self->blib ) {
push @libs, 'blib/lib', 'blib/arch';
}
if ( @{ $self->includes } ) {
push @libs, @{ $self->includes };
}
#24926
@libs = map { File::Spec->rel2abs($_) } @libs;
# Huh?
return @libs ? \@libs : ();
}
sub _shuffle {
my $self = shift;
# Fisher-Yates shuffle
my $i = @_;
while ($i) {
my $j = rand $i--;
@_[ $i, $j ] = @_[ $j, $i ];
}
return;
}
=head3 C<require_harness>
Load a harness replacement class.
$prove->require_harness($for => $class_name);
=cut
sub require_harness {
my ( $self, $for, $class ) = @_;
my ($class_name) = $class =~ /^(\w+(?:::\w+)*)/;
# Emulate Perl's -MModule=arg1,arg2 behaviour
$class =~ s!^(\w+(?:::\w+)*)=(.*)$!$1 split(/,/,q{$2})!;
eval("use $class;");
die "$class_name is required to use the --$for feature: $@" if $@;
$self->{harness_class} = $class_name;
return;
}
=head3 C<print_version>
Display the version numbers of the loaded L<TAP::Harness> and the
current Perl.
=cut
sub print_version {
my $self = shift;
require TAP::Harness;
printf(
"TAP::Harness v%s and Perl v%vd\n",
$TAP::Harness::VERSION, $^V
);
return;
}
1;
# vim:ts=4:sw=4:et:sta
__END__
=head2 Attributes
After command line parsing the following attributes reflect the values
of the corresponding command line switches. They may be altered before
calling C<run>.
=over
=item C<archive>
=item C<argv>
=item C<backwards>
=item C<blib>
=item C<color>
=item C<directives>
=item C<dry>
=item C<exec>
=item C<extensions>
=item C<failures>
=item C<comments>
=item C<formatter>
=item C<harness>
=item C<ignore_exit>
=item C<includes>
=item C<jobs>
=item C<lib>
=item C<merge>
=item C<modules>
=item C<parse>
=item C<plugins>
=item C<quiet>
=item C<really_quiet>
=item C<recurse>
=item C<rules>
=item C<show_count>
=item C<show_help>
=item C<show_man>
=item C<show_version>
=item C<shuffle>
=item C<state>
=item C<state_class>
=item C<taint_fail>
=item C<taint_warn>
=item C<test_args>
=item C<timer>
=item C<verbose>
=item C<warnings_fail>
=item C<warnings_warn>
=item C<tapversion>
=item C<trap>
=back
=head1 PLUGINS
C<App::Prove> provides support for 3rd-party plugins. These are currently
loaded at run-time, I<after> arguments have been parsed (so you can not
change the way arguments are processed, sorry), typically with the
C<< -PI<plugin> >> switch, eg:
prove -PMyPlugin
This will search for a module named C<App::Prove::Plugin::MyPlugin>, or failing
that, C<MyPlugin>. If the plugin can't be found, C<prove> will complain & exit.
You can pass an argument to your plugin by appending an C<=> after the plugin
name, eg C<-PMyPlugin=foo>. You can pass multiple arguments using commas:
prove -PMyPlugin=foo,bar,baz
These are passed in to your plugin's C<load()> class method (if it has one),
along with a reference to the C<App::Prove> object that is invoking your plugin:
sub load {
my ($class, $p) = @_;
my @args = @{ $p->{args} };
# @args will contain ( 'foo', 'bar', 'baz' )
$p->{app_prove}->do_something;
...
}
Note that the user's arguments are also passed to your plugin's C<import()>
function as a list, eg:
sub import {
my ($class, @args) = @_;
# @args will contain ( 'foo', 'bar', 'baz' )
...
}
This is for backwards compatibility, and may be deprecated in the future.
=head2 Sample Plugin
Here's a sample plugin, for your reference:
package App::Prove::Plugin::Foo;
# Sample plugin, try running with:
# prove -PFoo=bar -r -j3
# prove -PFoo -Q
# prove -PFoo=bar,My::Formatter
use strict;
use warnings;
sub load {
my ($class, $p) = @_;
my @args = @{ $p->{args} };
my $app = $p->{app_prove};
print "loading plugin: $class, args: ", join(', ', @args ), "\n";
# turn on verbosity
$app->verbose( 1 );
# set the formatter?
$app->formatter( $args[1] ) if @args > 1;
# print some of App::Prove's state:
for my $attr (qw( jobs quiet really_quiet recurse verbose )) {
my $val = $app->$attr;
$val = 'undef' unless defined( $val );
print "$attr: $val\n";
}
return 1;
}
1;
=head1 SEE ALSO
L<prove>, L<TAP::Harness>
=cut
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