Detect changed feed urls and rebase working copies if needed. (Patch by xMff)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13138 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/scripts/feeds b/scripts/feeds
index 76d83af..0586b42 100755 (executable)
--- a/scripts/feeds
+++ b/scripts/feeds
@@ -48,6 +48,33 @@ sub parse_config() {
        close FEEDS;
 }
 
+sub update_location($$)
+{
+       my $name = shift;
+       my $url  = shift;
+       my $old_url;
+
+       -d "./feeds/$name.tmp" or mkdir "./feeds/$name.tmp" or return 1;
+
+       if( open LOC, "< ./feeds/$name.tmp/location" )
+       {
+               chomp($old_url = readline LOC);
+               close LOC;
+       }
+
+       if( !$old_url || $old_url ne $url )
+       {
+               if( open LOC, "> ./feeds/$name.tmp/location" )
+               {
+                       print LOC $url, "\n";
+                       close LOC;
+               }
+               return $old_url ? 1 : 0;
+       }
+
+       return 0;       
+}
+
 sub update_index($)
 {
        my $name = shift;
@@ -62,11 +89,12 @@ sub update_index($)
        return 0;
 }
 
-sub update_svn($$) {
+sub update_svn($$$) {
        my $name = shift;
        my $src = shift;
+       my $relocate = shift;
 
-       if (-d "./feeds/$name/.svn" ) {
+       if ( !$relocate && -d "./feeds/$name/.svn" ) {
                system("(cd \"./feeds/$name\"; svn up)") == 0 or return 1;
        } else {
                system("rm -rf \"./feeds/$name\"");
@@ -76,30 +104,34 @@ sub update_svn($$) {
        return 0;
 }
 
-sub update_cpy($$) {
+sub update_cpy($$$) {
        my $name = shift;
        my $src = shift;
+       my $relocate = shift;
 
+       $relocate && system("rm -rf \"./feeds/$name\"");
        system("mkdir -p ./feeds/$name");
        system("cp -Rf $src ./feeds");
 
        return 0;
 }
 
-sub update_link($$) {
+sub update_link($$$) {
        my $name = shift;
        my $src = abs_path(shift);
+       my $relocate = shift;   # no-op
 
        system("rm -f ./feeds/$name; ln -s $src ./feeds/$name");
 
        return 0;
 }
 
-sub update_git($$) {
+sub update_git($$$) {
        my $name = shift;
        my $src = shift;
+       my $relocate = shift;
 
-       if (-d "./feeds/$name/.git" ) {
+       if ( !$relocate && -d "./feeds/$name/.git" ) {
                system("GIT_DIR=./feeds/$name/.git git pull") == 0 or return 1;
        } else {
                system("rm -rf \"./feeds/$name\"");
@@ -416,7 +448,11 @@ sub update_feed($$$$)
        my $name=shift;
        my $src=shift;
        my $perform_update=shift;
+       my $force_relocate=update_location( $name, "@$src" );
 
+       if( $force_relocate ) {
+               warn "Source of feed $name has changed, replacing copy\n";
+       }
        $update_method{$type} or do {
                warn "Unknown type '$type' in feed $name\n";
                return 1;
@@ -425,7 +461,7 @@ sub update_feed($$$$)
                my $failed = 1;
                foreach my $feedsrc (@$src) {
                        warn "Updating feed '$name' from '$feedsrc' ...\n";
-                       next unless &{$update_method{$type}}($name, $feedsrc) == 0;
+                       next unless &{$update_method{$type}}($name, $feedsrc, $force_relocate) == 0;
                        $failed = 0;
                        last;
                }