scripts/feeds: cache feed metadata instead of re-reading it on every get_feed() call

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22814 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/scripts/feeds b/scripts/feeds
index 3932a2d..f2ffc3e 100755 (executable)
--- a/scripts/feeds
+++ b/scripts/feeds
@@ -26,6 +26,10 @@ $valid_mk or die "Unsupported version of make found: $mk\n";
 my @feeds;
 my %build_packages;
 my %installed;
+my %feed_cache;
+
+my $feed_package = {};
+my $feed_src = {};
 
 sub parse_config() {
        my $line = 0;
@@ -148,16 +152,22 @@ sub update_feed_via($$$$) {
 
 sub get_feed($) {
        my $feed = shift;
-       my $file = "./feeds/$feed.index";
 
-       clear_packages();
+       if (!defined($feed_cache{$feed})) {
+               my $file = "./feeds/$feed.index";
 
-       -f $file or do {
-               print "Ignoring feed '$feed' - index missing\n";
-               return;
-       };
-       parse_package_metadata($file) or return;
-       return { %package };
+               clear_packages();
+               -f $file or do {
+                       print "Ignoring feed '$feed' - index missing\n";
+                       return;
+               };
+               parse_package_metadata($file) or return;
+               $feed_cache{$feed} = [ { %package }, { %srcpackage } ];
+       }
+
+       $feed_package = $feed_cache{$feed}->[0];
+       $feed_src = $feed_cache{$feed}->[1];
+       return $feed_cache{$feed}->[0];
 }
 
 sub get_installed() {
@@ -174,8 +184,8 @@ sub search_feed {
 
        return unless @substr > 0;
        get_feed($feed);
-       foreach my $name (sort { lc($a) cmp lc($b) } keys %package) {
-               my $pkg = $package{$name};
+       foreach my $name (sort { lc($a) cmp lc($b) } keys %$feed_package) {
+               my $pkg = $feed_package->{$name};
                my $substr;
                my $pkgmatch = 1;
 
@@ -212,7 +222,7 @@ sub list_feed {
 
        get_feed($feed);
        foreach my $name (sort { lc($a) cmp lc($b) } keys %package) {
-               my $pkg = $package{$name};
+               my $pkg = $feed_package->{$name};
                next if $pkg->{vdepends};
                if($pkg->{name}) {
                        printf "\%-32s\t\%s\n", $pkg->{name}, $pkg->{title};
@@ -293,7 +303,7 @@ sub install_package {
        $feed or do {
                $installed{$name} and return 0;
                # TODO: check if it's already installed within ./package directory
-               $srcpackage{$name} or -d "./package/$name" or warn "WARNING: No feed for package '$name' found, maybe it's already part of the standard packages?\n";
+               $feed_src->{$name} or -d "./package/$name" or warn "WARNING: No feed for package '$name' found, maybe it's already part of the standard packages?\n";
                return 0;
        };
 
@@ -328,7 +338,7 @@ sub install_package {
        };
 
        # install all dependencies
-       foreach my $vpkg (@{$srcpackage{$src}}, $pkg) {
+       foreach my $vpkg (@{$feed_src->{$src}}, $pkg) {
                foreach my $dep (@{$vpkg->{depends}}, @{$vpkg->{builddepends}}, @{$vpkg->{"builddepends/host"}}) {
                        next if $dep =~ /@/;
                        $dep =~ s/^\+//;
@@ -385,7 +395,7 @@ sub install {
                                printf "Installing all packages from feed %s.\n", $f->[1];
                                get_feed($f->[1]);
                                foreach my $name (sort { lc($a) cmp lc($b) } keys %package) {
-                                       my $p = $package{$name};
+                                       my $p = $feed_package->{$name};
                                        next if $p->{vdepends};
                                        if( $p->{name} ) {
                                                install_package($feed, $p->{name}) == 0 or $ret = 1;