X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=Debian%2FDebhelper%2FDh_Lib.pm;h=e0a274a4dd78192fb7893a249a85930cf094a2cf;hb=4a692f55a0e9d9c579281f1c2002036436b2b367;hp=51b53d3e600b158223f6b32ec68eab16abb4556e;hpb=9a43d7dbf76c71949b98522f0a80f05e1115a3d6;p=debhelper.git

diff --git a/Debian/Debhelper/Dh_Lib.pm b/Debian/Debhelper/Dh_Lib.pm
index 51b53d3..e0a274a 100644
--- a/Debian/Debhelper/Dh_Lib.pm
+++ b/Debian/Debhelper/Dh_Lib.pm
@@ -18,9 +18,9 @@ use vars qw(@ISA @EXPORT %dh);
 	    &inhibit_log &load_log &write_log &commit_override_log
 	    &dpkg_architecture_value &sourcepackage
 	    &is_make_jobserver_unavailable &clean_jobserver_makeflags
-	    &cross_command);
+	    &cross_command &set_buildflags &get_buildoption);
 
-my $max_compat=9;
+my $max_compat=10;
 
 sub init {
 	my %params=@_;
@@ -146,6 +146,8 @@ sub write_log {
 	my $cmd=shift;
 	my @packages=@_;
 
+	return if $dh{NO_ACT};
+
 	foreach my $package (@packages) {
 		my $log=logfile($package);
 		open(LOG, ">>", $log) || error("failed to write to ${log}: $!");
@@ -157,6 +159,8 @@ sub write_log {
 sub commit_override_log {
 	my @packages=@_;
 
+	return if $dh{NO_ACT};
+
 	foreach my $package (@packages) {
 		my @log=map { remove_override($_) } load_log($package);
 		my $log=logfile($package);
@@ -324,29 +328,35 @@ sub dirname {
 
 	sub compat {
 		my $num=shift;
+		my $nowarn=shift;
 	
 		if (! defined $c) {
 			$c=1;
-			if (defined $ENV{DH_COMPAT}) {
-				$c=$ENV{DH_COMPAT};
-			}
-			elsif (-e 'debian/compat') {
-				# Try the file..
+			if (-e 'debian/compat') {
 				open (COMPAT_IN, "debian/compat") || error "debian/compat: $!";
 				my $l=<COMPAT_IN>;
 				close COMPAT_IN;
 				if (! defined $l || ! length $l) {
-					warning("debian/compat is empty, assuming level $c");
+					warning("debian/compat is empty, assuming level $c")
+						unless defined $ENV{DH_COMPAT};
 				}
 				else {
 					chomp $l;
 					$c=$l;
 				}
 			}
+			else {
+				warning("No compatibility level specified in debian/compat");
+				warning("This package will soon FTBFS; time to fix it!");
+			}
+
+			if (defined $ENV{DH_COMPAT}) {
+				$c=$ENV{DH_COMPAT};
+			}
 		}
 
-		if ($c <= 4 && ! $warned_compat) {
-			warning("Compatibility levels before 5 are deprecated.");
+		if ($c <= 4 && ! $warned_compat && ! $nowarn) {
+			warning("Compatibility levels before 5 are deprecated (level $c in use)");
 			$warned_compat=1;
 		}
 	
@@ -608,12 +618,22 @@ sub filedoublearray {
 	my $file=shift;
 	my $globdir=shift;
 
+	# executable confi files are a v9 thing.
+	my $x=! compat(8) && -x $file;
+	if ($x) {
+		require Cwd;
+		my $cmd=Cwd::abs_path($file);
+		open (DH_FARRAY_IN, "$cmd |") || error("cannot run $file: $!");
+	}
+	else {
+		open (DH_FARRAY_IN, $file) || error("cannot read $file: $!");
+	}
+
 	my @ret;
-	open (DH_FARRAY_IN, $file) || error("cannot read $file: $!");
 	while (<DH_FARRAY_IN>) {
 		chomp;
 		# Only ignore comments and empty lines in v5 mode.
-		if (! compat(4)) {
+		if (! compat(4) && ! $x)  {
 			next if /^#/ || /^$/;
 		}
 		my @line;
@@ -622,7 +642,7 @@ sub filedoublearray {
 		# The tricky bit is that the glob expansion is done
 		# as if we were in the specified directory, so the
 		# filenames that come out are relative to it.
-		if (defined $globdir && ! compat(2)) {
+		if (defined $globdir && ! compat(2) && ! $x) {
 			foreach (map { glob "$globdir/$_" } split) {
 				s#^$globdir/##;
 				push @line, $_;
@@ -633,7 +653,8 @@ sub filedoublearray {
 		}
 		push @ret, [@line];
 	}
-	close DH_FARRAY_IN;
+
+	close DH_FARRAY_IN || error("problem reading $file: $!");
 	
 	return @ret;
 }
@@ -900,4 +921,43 @@ sub cross_command {
 	}
 }
 
+# Sets environment variables from dpkg-buildflags. Avoids changing
+# any existing environment variables.
+sub set_buildflags {
+	return if $ENV{DH_INTERNAL_BUILDFLAGS} || compat(8);
+	$ENV{DH_INTERNAL_BUILDFLAGS}=1;
+
+	eval "use Dpkg::BuildFlags";
+	if ($@) {
+		warning "unable to load build flags: $@";
+		return;
+	}
+
+	my $buildflags = Dpkg::BuildFlags->new();
+	$buildflags->load_config();
+	foreach my $flag ($buildflags->list()) {
+		next unless $flag =~ /^[A-Z]/; # Skip flags starting with lowercase
+		if (! exists $ENV{$flag}) {
+			$ENV{$flag} = $buildflags->get($flag);
+		}
+	}
+}
+
+# Gets a DEB_BUILD_OPTIONS option, if set.
+sub get_buildoption {
+	my $wanted=shift;
+
+	return undef unless exists $ENV{DEB_BUILD_OPTIONS};
+
+	foreach my $opt (split(/\s+/, $ENV{DEB_BUILD_OPTIONS})) {
+		# currently parallel= is the only one with a parameter
+		if ($opt =~ /^parallel=(-?\d+)$/ && $wanted eq 'parallel') {
+			return $1;
+		}
+		elsif ($opt eq $wanted) {
+			return 1;
+		}
+	}
+}
+
 1