build: introduce per feed repository support

This changeset implements a new menuconfig option to generate separate
repositories for each enabled package feed instead of one monolithic one.

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

Backport of r42002

git-svn-id: svn://svn.openwrt.org/openwrt/branches/barrier_breaker@42016 3c298f89-4303-0410-b956-a3cf2f4a3e73

scripts/feeds

@@ -262,11 +262,17 @@ sub list_feed {
 sub list {
 	my %opts;
 
-	getopts('r:d:sh', \%opts);
+	getopts('r:d:nsh', \%opts);
 	if ($opts{h}) {
 		usage();
 		return 0;
 	}
+	if ($opts{n}) {
+		foreach my $feed (@feeds) {
+			printf "%s\n", $feed->[1];
+		}
+		return 0;
+	}
 	if ($opts{s}) {
 		foreach my $feed (@feeds) {
 			my $localpath = "./feeds/$feed->[1]";
@@ -598,6 +604,22 @@ sub update {
 	return 0;
 }
 
+sub feed_config() {
+	foreach my $feed (@feeds) {
+		my $installed = (-f "feeds/$feed->[1].index");
+
+		printf "\tconfig FEED_%s\n", $feed->[1];
+		printf "\t\tbool \"Enable feed %s\"\n", $feed->[1];
+		printf "\t\tdepends on PER_FEED_REPO\n";
+		printf "\t\tdefault y\n" if $installed;
+		printf "\t\thelp\n";
+		printf "\t\t Enable the \\\"%s\\\" feed at %s.\n", $feed->[1], $feed->[2][0];
+		printf "\n";
+	}
+
+	return 0;
+}
+
 sub usage() {
 	print <<EOF;
 Usage: $0 <command> [options]
@@ -605,6 +627,7 @@ Usage: $0 <command> [options]
 Commands:
 	list [options]: List feeds, their content and revisions (if installed)
 	Options:
+	    -n :            List of feed names.
 	    -s :            List of feed names and their URL.
 	    -r <feedname>:  List packages of specified feed.
 	    -d <delimiter>: Use specified delimiter to distinguish rows (default: spaces)
@@ -640,6 +663,7 @@ my %commands = (
 	'install' => \&install,
 	'search' => \&search,
 	'uninstall' => \&uninstall,
+	'feed_config' => \&feed_config,
 	'clean' => sub {
 		system("rm -rf feeds");
 	}

scripts/metadata.pl

@@ -848,6 +848,16 @@ sub gen_package_source() {
 	}
 }
 
+sub gen_package_feeds() {
+	parse_package_metadata($ARGV[0]) or exit 1;
+	foreach my $name (sort {uc($a) cmp uc($b)} keys %package) {
+		my $pkg = $package{$name};
+		if ($pkg->{name} && $pkg->{feed}) {
+			print "Package/$name/feed = $pkg->{feed}\n";
+		}
+	}
+}
+
 sub parse_command() {
 	my $cmd = shift @ARGV;
 	for ($cmd) {
@@ -856,6 +866,7 @@ sub parse_command() {
 		/^package_config$/ and return gen_package_config();
 		/^kconfig/ and return gen_kconfig_overrides();
 		/^package_source$/ and return gen_package_source();
+		/^package_feeds$/ and return gen_package_feeds();
 	}
 	print <<EOF
 Available Commands:
@@ -864,6 +875,7 @@ Available Commands:
 	$0 package_config [file] 	Package metadata in Kconfig format
 	$0 kconfig [file] [config]	Kernel config overrides
 	$0 package_source [file] 	Package source file information
+	$0 package_feeds [file]		Package feed information in makefile format
 
 EOF
 }

scripts/metadata.pm

@@ -119,6 +119,7 @@ sub parse_package_metadata($) {
 		/^Build-Depends: \s*(.+)\s*$/ and $pkg->{builddepends} = [ split /\s+/, $1 ];
 		/^Build-Depends\/(\w+): \s*(.+)\s*$/ and $pkg->{"builddepends/$1"} = [ split /\s+/, $2 ];
 		/^Build-Types:\s*(.+)\s*$/ and $pkg->{buildtypes} = [ split /\s+/, $1 ];
+		/^Feed:\s*(.+?)\s*$/ and $pkg->{feed} = $1;
 		/^Category: \s*(.+)\s*$/ and do {
 			$pkg->{category} = $1;
 			defined $category{$1} or $category{$1} = {};