use base 'Exporter';
our @EXPORT=qw(&buildsystems_init &buildsystems_do &load_buildsystem &load_all_buildsystems);
+use constant BUILD_STEPS => qw(configure build test install clean);
+
# Historical order must be kept for backwards compatibility. New
# build systems MUST be added to the END of the list.
our @BUILDSYSTEMS = (
- "autoconf",
- "perl_makemaker",
- "makefile",
- "python_distutils",
- "perl_build",
- "cmake",
+ "autoconf",
+ "perl_makemaker",
+ "makefile",
+ "python_distutils",
+ "perl_build",
+ "cmake",
+ "ant",
);
my $opt_buildsys;
my $opt_sourcedir;
my $opt_builddir;
my $opt_list;
-my $opt_help_buildsys;
+my $opt_parallel;
sub create_buildsystem_instance {
my $system=shift;
if (!exists $bsopts{sourcedir} && defined $opt_sourcedir) {
$bsopts{sourcedir} = ($opt_sourcedir eq "") ? undef : $opt_sourcedir;
}
+ if (!exists $bsopts{parallel}) {
+ $bsopts{parallel} = $opt_parallel;
+ }
return $module->new(%bsopts);
}
+# Autoselect a build system from the list of instances
+sub autoselect_buildsystem {
+ my $step=shift;
+ my $selected;
+ my $selected_level = 0;
+
+ for my $inst (@_) {
+ # Only derived (i.e. more specific) build system can be
+ # considered beyond the currently selected one.
+ next if defined $selected && !$inst->isa(ref $selected);
+
+ # If the build system says it is auto-buildable at the current
+ # step and it can provide more specific information about its
+ # status than its parent (if any), auto-select it.
+ my $level = $inst->check_auto_buildable($step);
+ if ($level > $selected_level) {
+ $selected = $inst;
+ $selected_level = $level;
+ }
+ }
+ return $selected;
+}
+
# Similar to create_build system_instance(), but it attempts to autoselect
# a build system if none was specified. In case autoselection fails, undef
# is returned.
}
else {
# Try to determine build system automatically
+ my @buildsystems;
for $system (@BUILDSYSTEMS) {
- my $inst = create_buildsystem_instance($system, @_);
- if ($inst->check_auto_buildable($step)) {
- return $inst;
- }
+ push @buildsystems, create_buildsystem_instance($system, @_);
}
+ return autoselect_buildsystem($step, @buildsystems);
}
- return;
}
sub load_all_buildsystems {
}
}
- # Push standard debhelper build systems first
+ # Standard debhelper build systems first
for my $name (@BUILDSYSTEMS) {
error("standard debhelper build system '$name' could not be found/loaded")
if not exists $buildsystems{$name};
sub buildsystems_init {
my %args=@_;
+
+ my $max_parallel=-1; # unlimited
# Available command line options
my %options = (
"l" => \$opt_list,
"list" => \$opt_list,
- "help-buildsystem" => \$opt_help_buildsys,
+ "max-parallel=i" => \$max_parallel,
);
$args{options}{$_} = $options{$_} foreach keys(%options);
Debian::Debhelper::Dh_Lib::init(%args);
+ set_parallel($max_parallel);
+}
+
+sub set_parallel {
+ my $max=shift;
+
+ $opt_parallel=1;
+
+ if (exists $ENV{DEB_BUILD_OPTIONS}) {
+ # Parse parallel=n tag
+ foreach my $opt (split(/\s+/, $ENV{DEB_BUILD_OPTIONS})) {
+ if ($opt =~ /^parallel=([-\d]+)$/) {
+ my $n=$1;
+ if ($n > 0 && ($max == -1 || $n < $max)) {
+ $opt_parallel = $n;
+ }
+ else {
+ $opt_parallel = $max;
+ }
+ }
+ }
+ }
}
sub buildsystems_list {
my $step=shift;
- # List build systems (including auto and specified status)
- my ($auto, $specified);
my @buildsystems = load_all_buildsystems();
+ my $auto = autoselect_buildsystem($step, grep { ! $_->{thirdparty} } @buildsystems);
+ my $specified;
+
+ # List build systems (including auto and specified status)
for my $inst (@buildsystems) {
- my $is_specified = defined $opt_buildsys && $opt_buildsys eq $inst->NAME();
if (! defined $specified && defined $opt_buildsys && $opt_buildsys eq $inst->NAME()) {
- $specified = $inst->NAME();
- }
- elsif (! defined $auto && ! $inst->{thirdparty} && $inst->check_auto_buildable($step)) {
- $auto = $inst->NAME();
+ $specified = $inst;
}
- printf("%s - %s", $inst->NAME(), $inst->DESCRIPTION());
+ printf("%-20s %s", $inst->NAME(), $inst->DESCRIPTION());
print " [3rd party]" if $inst->{thirdparty};
print "\n";
}
print "\n";
- print "Auto-selected: $auto\n" if defined $auto;
- print "Specified: $specified\n" if defined $specified;
+ print "Auto-selected: ", $auto->NAME(), "\n" if defined $auto;
+ print "Specified: ", $specified->NAME(), "\n" if defined $specified;
print "No system auto-selected or specified\n"
if ! defined $auto && ! defined $specified;
}
-sub help_buildsystem {
- my $step=shift;
-
- # Print build system help page to standard output
-
- my $inst = load_buildsystem($opt_buildsys, $step);
- if ($inst) {
- my $pmfile = ref $inst;
- $pmfile =~ s#::#/#g;
- $pmfile = $INC{"$pmfile.pm"};
-
- # Display help with perldoc if it is installed and output is
- # a tty
- my $perldoc;
- if (-t STDOUT) {
- eval "use Pod::Perldoc";
- $perldoc = "Pod::Perldoc" if (!$@);
- }
- if ($perldoc) {
- $perldoc = new Pod::Perldoc();
- $perldoc->{args} = [ '-oman',
- '-w', 'section=7" "--name=dh_auto_'.lc($inst->NAME()),
- '-w', 'center=Dh_auto build system documentation',
- '-w', 'release=',
- '-F', $pmfile ];
- $perldoc->process();
- }
- else {
- # No perldoc on the system. Use Pod::Usage to emit simple text
- eval "use Pod::Usage";
- pod2usage( -message => "Help page for the ".$inst->NAME()." build system\n" .
- '<' . '-'x74 . '>',
- -input => $pmfile, -exitval => 'NOEXIT',
- -verbose => 2, -noperldoc => 1 );
- print '<', '-'x74, '>', "\n";
- }
- return 0;
- }
- else {
- print STDERR "No system auto-selected or specified. Try using --buildsystem option\n";
- return 1;
- }
-}
-
sub buildsystems_do {
my $step=shift;
$step =~ s/^dh_auto_//;
}
- if (grep(/^\Q$step\E$/, qw{configure build test install clean}) == 0) {
+ if (grep(/^\Q$step\E$/, BUILD_STEPS) == 0) {
error("unrecognized build step: " . $step);
}
exit 0;
}
- if ($opt_help_buildsys) {
- exit help_buildsystem($step);
- }
-
my $buildsystem = load_buildsystem($opt_buildsys, $step);
if (defined $buildsystem) {
$buildsystem->pre_building_step($step);
return 0;
}
-1;
+1
projects / debhelper.git / blobdiff