- create kernel/RPMS/ to copy rpms before expanding them in kernel/all.kernels

- remove old compatability code
- add some doc in update_kernel

1 files changed, 42 insertions, 28 deletions

diff --git a/kernel/update_kernel b/kernel/update_kernel
index adef926d9..a32878339 100755
--- a/kernel/update_kernel
+++ b/kernel/update_kernel
@@ -1,9 +1,20 @@
 #!/usr/bin/perl
 
+# this script takes kernels rpms from RPMS/ and create various files in all_kernels/
+# for each rpms in RPMS, it does:
+#   RPMS/kernel-VER-*.rpm -> 
+#     all.kernels/VER/all_modules.tar  (used for all.rdz)
+#     all.kernels/VER/*.mar            (used for other rdz)
+#     all.kernels/VER/modules.cz       (used for stage2)
+#     all.kernels/VER/modules.dep
+#     all.kernels/VER/vmlinuz
+#
+# if RPMS is empty, this script tries to find kernels in $main_repository
+
 use MDK::Common;
 use list_modules;
 
-my $RPMS = '/export/media/main';
+my $main_repository = '/export/media/main';
 my $rpm = 'rpm --nosignature';
 
 
@@ -11,22 +22,21 @@ my $MOVE = $ARGV[0] eq '--move' && shift;
 
 @ARGV <= 1 or die "usage: ./update_kernel [--move] [<kernel rpm>]\n";
 
+eval { rm_rf('all.kernels') }; #- remove old things
+mkdir 'all.kernels';
 
-mkdir 'all.kernels'; # make sure "all.kernels" directory exists
-eval { rm_rf('all.modules') }; #- not used anymore
-
-my $main = chomp_(cat_('all.kernels/.main'));
-my $main_BOOT = chomp_(cat_('all.kernels/.main-BOOT'));
+my $main = chomp_(cat_('RPMS/.main'));
+my $main_BOOT = chomp_(cat_('RPMS/.main-BOOT'));
 
 if (@ARGV) {
     install_kernel($ARGV[0]);
-} else {
-    update_kernel_from_repository($RPMS, '2.6', 0);
-    update_kernel_from_repository($RPMS, '2.6', 1);
-#    update_kernel_from_repository($RPMS, '2.4', 1);
-    install_kernel(glob("$RPMS/kernel-xbox*"), 1) if arch() =~ /i.86/;
+} elsif (! -d 'RPMS') {
+    update_kernel_from_repository($main_repository, '2.6', 0);
+    update_kernel_from_repository($main_repository, '2.6', 1);
+    install_kernel(glob("$main_repository/kernel-xbox*"), 1) if arch() =~ /i.86/;
 }
 
+extract_kernel($_) foreach glob("RPMS/*.rpm");
 
 sub system_verbose { print join(' ', @_), "\n"; system(@_) }
 sub sys { &system_verbose; $? and die }
@@ -37,33 +47,37 @@ sub rpm2version {
 }
 
 sub update_kernel_from_repository {
-    my ($RPMS, $main_ver, $is_BOOT) = @_;
+    my ($repository, $main_ver, $is_BOOT) = @_;
     my $rpm_wildcard = 'kernel-' . ($is_BOOT ? 'BOOT-' : (arch() =~ /i.86/ ? 'i586-up-1GB-' : '')) . $main_ver . '*.rpm';
-    my @kernels = glob("$RPMS/$rpm_wildcard");
+    my @kernels = glob("$repository/$rpm_wildcard");
     
     install_kernel($_, 1) foreach @kernels;
 }
 
 sub install_kernel {
-    my ($kernel_rpm, $o_update) = @_;
+    my ($kernel_rpm) = @_;
+    my $basename = basename($kernel_rpm);
+    warn "Installing rpm $basename in RPMS\n";
+    mkdir 'RPMS';
+    cp_af($kernel_rpm, "RPMS/$basename");
+
+    if (!$main) {
+	$main = rpm2version($kernel_rpm);
+	output('RPMS/.main', "$main\n");
+    }
+    if (!$main_BOOT && $kernel_rpm =~ /BOOT/) {
+	$main_BOOT = rpm2version($kernel_rpm);
+	output('RPMS/.main-BOOT', "$main_BOOT\n");
+    }
+}
+
+sub extract_kernel {
+    my ($kernel_rpm) = @_;
 
     my $kern_ver = rpm2version($kernel_rpm);
     my $dir = "all.kernels/$kern_ver";
 
-    -d $dir and return if $o_update;
-
-    my $is_BOOT = $kern_ver =~ /BOOT/;
-
-    if (!$main || !-d "all.kernels/$main") {
-	$main = $kern_ver;
-	output('all.kernels/.main', "$main\n");
-    }
-    if ($is_BOOT && (!$main_BOOT || !-d "all.kernels/$main_BOOT")) {
-	$main_BOOT = $kern_ver;
-	output('all.kernels/.main-BOOT', "$main_BOOT\n");
-    }
-
-    warn "Installing kernel $kern_ver\n";
+    warn "Extracting kernel $kern_ver\n";
 
     eval { rm_rf($dir) };
     mkdir_p("$dir/modules");