From 5b479f7dcf03e661abac1ae2cfbf5d5a477ab650 Mon Sep 17 00:00:00 2001
From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Sun, 7 Jan 2018 23:11:11 +0100
Subject: [PATCH] metadata: handle target build depends together with host
 build depends

Target build depends are similar to host build depends in that they refer
to source packages rather than binary packages. Therefore, it makes sense
to handle them together, rather than putting them in a list together with
runtime depends and trying to figure out if the entries refer to source or
to binary packages afterwards.

This does lead to PKG_BUILD_DEPENDS entries referring to binary package
names not working anymore, which requires some fixes in the package
repositories.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
---
 scripts/package-metadata.pl | 60 +++++++++++++++++--------------------
 1 file changed, 28 insertions(+), 32 deletions(-)

diff --git a/scripts/package-metadata.pl b/scripts/package-metadata.pl
index fe6e25b3c8..b092db3565 100755
--- a/scripts/package-metadata.pl
+++ b/scripts/package-metadata.pl
@@ -408,6 +408,7 @@ sub gen_package_mk() {
 		my $src = $srcpackage{$srcname};
 		my $variant_default;
 		my @srcdeps;
+		my %deplines = ('' => {});
 
 		foreach my $pkg (@{$src->{packages}}) {
 			next if defined $pkg->{vdepends};
@@ -441,19 +442,23 @@ sub gen_package_mk() {
 			print "buildtypes-$src->{path} = ".join(' ', @{$src->{buildtypes}})."\n";
 		}
 
-		foreach my $dep (@{$src->{builddepends}}, map { @{$_->{depends}} } @{$src->{packages}}) {
+		foreach my $dep (map { @{$_->{depends}} } @{$src->{packages}}) {
 			$dep =~ /@/ or do {
 				$dep =~ s/\+//g;
 				push @srcdeps, $dep;
 			};
 		}
-		foreach my $type (@{$src->{buildtypes}}) {
-			my @extra_deps;
-			my %deplines;
+		foreach my $type ('', @{$src->{buildtypes}}) {
+			my $suffix = '';
 
-			next unless $src->{"builddepends/$type"};
-			foreach my $dep (@{$src->{"builddepends/$type"}}) {
-				my $suffix = "";
+			$suffix = "/$type" if $type;
+
+			next unless $src->{"builddepends$suffix"};
+
+			defined $deplines{$suffix} or $deplines{$suffix} = {};
+
+			foreach my $dep (@{$src->{"builddepends$suffix"}}) {
+				my $depsuffix = "";
 				my $deptype = "";
 				my $condition;
 
@@ -464,37 +469,26 @@ sub gen_package_mk() {
 				if ($dep =~ /^(.+)\/(.+)/) {
 					$dep = $1;
 					$deptype = $2;
-					$suffix = "/$2";
+					$depsuffix = "/$2";
 				}
 
-				my $idx = "";
-				my $pkg_dep = $package{$dep};
-				if (defined($pkg_dep) && defined($pkg_dep->{src})) {
-					unless (!$deptype || grep { $_ eq $deptype } @{$pkg_dep->{src}{buildtypes}}) {
-						warn sprintf "WARNING: Makefile '%s' has a %s build dependency on '%s/%s' but '%s' does not implement a '%s' build type\n",
-							$src->{makefile}, $type, $pkg_dep->{src}{name}, $deptype, $pkg_dep->{src}{makefile}, $deptype;
-						next;
-					}
-					$idx = $pkg_dep->{src}{path};
-				} elsif (defined($srcpackage{$dep})) {
-					$idx = $srcpackage{$dep}{path};
-				} else {
+				next if $srcname.$suffix eq $dep.$depsuffix;
+
+				my $src_dep = $srcpackage{$dep};
+				unless (defined($src_dep) && (!$deptype || grep { $_ eq $deptype } @{$src_dep->{buildtypes}})) {
+					warn sprintf "WARNING: Makefile '%s' has a build dependency on '%s%s', which does not exist\n",
+						$src->{makefile}, $dep, $depsuffix;
 					next;
 				}
-				my $depstr = "\$(curdir)/$idx$suffix/compile";
+
+				my $depstr = "\$(curdir)/$src_dep->{path}$depsuffix/compile";
 				my $depline = get_conditional_dep($condition, $depstr);
 				if ($depline) {
-					$deplines{$depline}++;
+					$deplines{$suffix}{$depline}++;
 				}
 			}
-			my $depline = join(" ", sort keys %deplines);
-			if ($depline) {
-				$line .= "\$(curdir)/$src->{path}/$type/compile += $depline\n";
-			}
 		}
 
-		my $hasdeps = 0;
-		my %deplines;
 		foreach my $deps (@srcdeps) {
 			my $idx;
 			my $condition;
@@ -552,14 +546,16 @@ sub gen_package_mk() {
 					}
 					$depline = get_conditional_dep($condition, $depstr);
 					if ($depline) {
-						$deplines{$depline}++;
+						$deplines{''}{$depline}++;
 					}
 				}
 			}
 		}
-		my $depline = join(" ", sort keys %deplines);
-		if ($depline) {
-			$line .= "\$(curdir)/$src->{path}/compile += $depline\n";
+		foreach my $suffix (sort keys %deplines) {
+			my $depline = join(" ", sort keys %{$deplines{$suffix}});
+			if ($depline) {
+				$line .= "\$(curdir)/$src->{path}$suffix/compile += $depline\n";
+			}
 		}
 	}