From d3bf74fd5a3e2ae27c4b1fb407310b0a6d9b242d Mon Sep 17 00:00:00 2001
From: Pascal Rigaux <pixel@mandriva.com>
Date: Tue, 21 Nov 2006 14:57:52 +0000
Subject: create urpm::parallel and move some things from urpm.pm

---
 urpm/parallel.pm | 57 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 urpm/parallel.pm

(limited to 'urpm')

diff --git a/urpm/parallel.pm b/urpm/parallel.pm
new file mode 100644
index 00000000..e5dff4ff
--- /dev/null
+++ b/urpm/parallel.pm
@@ -0,0 +1,57 @@
+package urpm::parallel;
+
+use urpm;
+use urpm::util;
+use urpm::msg;
+
+
+sub configure {
+    my ($urpm, $alias) = @_;
+    my @parallel_options;
+    #- read parallel configuration
+    foreach (cat_("/etc/urpmi/parallel.cfg")) {
+	chomp; s/#.*$//; s/^\s*//; s/\s*$//;
+	/\s*([^:]*):(.*)/ or $urpm->{error}(N("unable to parse \"%s\" in file [%s]", $_, "/etc/urpmi/parallel.cfg")), next;
+	$1 eq $alias and push @parallel_options, $2;
+    }
+    #- if a configuration option has been found, use it; else fatal error.
+    my $parallel_handler;
+    if (@parallel_options) {
+	foreach my $dir (grep { -d $_ } map { "$_/urpm" } @INC) {
+	    foreach my $pm (grep { -f $_ } glob("$dir/parallel*.pm")) {
+		#- load parallel modules
+		$urpm->{log}->(N("examining parallel handler in file [%s]", $pm));
+		# perl_checker: require urpm::parallel_ka_run
+		# perl_checker: require urpm::parallel_ssh
+		eval { require $pm; $parallel_handler = $urpm->handle_parallel_options(join("\n", @parallel_options)) };
+		$parallel_handler and last;
+	    }
+	    $parallel_handler and last;
+	}
+    }
+    if ($parallel_handler) {
+	if ($parallel_handler->{nodes}) {
+	    $urpm->{log}->(N("found parallel handler for nodes: %s", join(', ', keys %{$parallel_handler->{nodes}})));
+	}
+	$urpm->{parallel_handler} = $parallel_handler;
+    } else {
+	$urpm->{fatal}(1, N("unable to use parallel option \"%s\"", $alias));
+    }
+}
+
+sub resolve_dependencies {
+    my ($urpm, $state, $requested, %options) = @_;
+
+    #- build the global synthesis file first.
+    my $file = "$urpm->{cachedir}/partial/parallel.cz";
+    unlink $file;
+    foreach (@{$urpm->{media}}) {
+	urpm::is_valid_medium($_) or next;
+	my $f = urpm::statedir_synthesis($urpm, $_);
+	system "cat '$f' >> '$file'";
+    }
+    #- let each node determine what is requested, according to handler given.
+    $urpm->{parallel_handler}->parallel_resolve_dependencies($file, $urpm, $state, $requested, %options);
+}
+
+1;
-- 
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