package Exim::Runtest;
+use 5.010;
use strict;
use warnings;
+use File::Basename;
+use IO::Socket::INET;
+use Cwd;
use Carp;
+use Exporter;
+our @ISA = qw(Exporter);
+
+our @EXPORT_OK = qw(mailgroup dynamic_socket exim_binary flavour flavours);
+our %EXPORT_TAGS = (
+ all => \@EXPORT_OK,
+);
+
use List::Util qw'shuffle';
+=head1 NAME
+
+Exim::Runtest - helper functions for the runtest script
+
+=head1 SYNOPSIS
+
+ use Exim::Runtest;
+ my $foo = Exim::Runtest::foo('foo');
+
+=head1 DESCRIPTION
+
+The B<Exim::Runtest> module provides some simple functions
+for the F<runtest> script. No functions are exported yet.
+
+=cut
-# find a group name, preferrable 'mail', but
-# use some other random name if 'mail' isn't a valid group
-# name
sub mailgroup {
- my $group = shift;
+ my $group = shift // croak "Need a default group name.";
croak "Need a group *name*, not a numeric group id."
if $group =~ /^\d+$/;
push @groups, $_ while defined($_ = getgrent);
endgrent;
return (shuffle @groups)[0];
-};
+}
+
+sub dynamic_socket {
+ my $socket;
+ for (my $port = 1024; $port < 65000; $port++) {
+ $socket = IO::Socket::INET->new(
+ LocalHost => '127.0.0.1',
+ LocalPort => $port,
+ Listen => 10,
+ ReuseAddr => 1,
+ ) and return $socket;
+ }
+ croak 'Can not allocate a free port.';
+}
+
+sub exim_binary {
+
+ # two simple cases, absolute path or relative path and executable
+ if (@_) {
+ return @_ if $_[0] =~ /^\//;
+ return Cwd::abs_path(shift), @_ if -x $_[0];
+ }
+
+ # so we're still here, if the simple approach didn't help.
+
+ # if there is '../exim-snapshot/<build-dir>/exim', use this
+ # if there is '../exim4/<build-dir>/exim', use this
+ # if there is '../exim-*.*/<build-dir>/exim', use the one with the highest version
+ # 4.84 < 4.85RC1 < 4.85RC2 < 4.85 < 4.86RC1 < … < 4.86
+ # if there is '../src/<build-dir>', use this
+ #
+
+ my $prefix = '..'; # was intended for testing.
+
+ # get a list of directories having the "scripts/{os,arch}-type"
+ # scripts
+ my @candidates = grep { -x "$_/scripts/os-type" and -x "$_/scripts/arch-type" }
+ "$prefix/exim-snapshot", "$prefix/exim4", # highest priority
+ (reverse sort { # list of exim-*.* directories
+ # split version number from RC number
+ my @a = ($a =~ /(\d+\.\d+)(?:RC(\d+))?/);
+ my @b = ($b =~ /(\d+\.\d+)(?:RC(\d+))?/);
+ # if the versions are not equal, we're fine,
+ # but otherwise we've to compare the RC number, where an
+ # empty RC number is better than a non-empty
+ ($a[0] cmp $b[0]) || (defined $a[1] ? defined $b[1] ? $a[1] cmp $b[1] : -1 : 1)
+ } glob "$prefix/exim-*.*"),
+ "$prefix/src"; # the "normal" source
+
+ # binaries should be found now depending on the os-type and
+ # arch-type in the directories we got above
+ my @binaries = grep { -x }
+ map { ("$_/exim", "$_/exim4") }
+ map {
+ my $os = `$_/scripts/os-type`;
+ my $arch = `$_/scripts/arch-type`;
+ chomp($os, $arch);
+ ($ENV{build} ? "$_/build-$ENV{build}" : ()),
+ "$_/build-$os-$arch" . ($ENV{EXIM_BUILD_SUFFIX} ? ".$ENV{EXIM_BUILD_SUFFIX}" : '');
+ } @candidates;
+
+ return $binaries[0], @_;
+}
+
+sub flavour {
+ my $etc = '/etc';
+
+ if (@_) {
+ croak "do not pass a directory, it's for testing only"
+ unless $ENV{HARNESS_ACTIVE};
+ $etc = shift;
+ }
+ if (open(my $f, '<', "$etc/os-release")) {
+ local $_ = join '', <$f>;
+ my ($id) = /^ID="?(.*?)"?\s*$/m;
+ my $version = /^VERSION_ID="?(.*?)"?\s*$/m ? $1 : '';
+ return "$id$version";
+ }
+
+ if (open(my $f, '<', "$etc/debian_version")) {
+ chomp(local $_ = <$f>);
+ $_ = int $_;
+ return "debian$_";
+ }
+
+ undef;
+}
+
+sub flavours {
+ my %h = map { /\.(\S+)$/, 1 }
+ glob('stdout/*.*'), glob('stderr/*.*');
+ return sort keys %h;
+}
1;
+
+__END__
+
+=head1 FUNCTIONS
+
+=over
+
+=item B<mailgroup>(I<$default>)
+
+Check if the mailgroup I<$default> exists. Return the checked
+group name or some other random but existing group.
+
+=item B<dynamic_socket>()
+
+Return a dynamically allocated listener socket in the range
+between 1024 and 65534;
+
+=item ($binary, @argv) = B<exim_binary>(I<@argv>)
+
+Find the Exim binary. Consider the first element of I<@argv>
+and remove it from I<@argv>, if it is an executable binary.
+Otherwise search the binary (while honouring C<EXIM_BUILD_SUFFIX>,
+C<../scripts/os-type> and C<../os-arch>) and return the
+the path to the binary and the unmodified I<@argv>.
+
+=item B<flavour>()
+
+Find a hint for the current flavour (Linux distro). It does so by checking
+typical files in the F</etc> directory.
+
+=item B<flavours>()
+
+Return a list of available flavours. It does so by scanning F<stdout/> and
+F<stderr/> for I<flavour> files (extensions after the numerical prefix.
+
+=back
+
+=cut
git://git.exim.org / users / jgh / exim.git / blobdiff