X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=bin%2Fkeep-latest;h=ebc4fa9d7d048c7c03a002283ace2edf897cbdb4;hb=1fa3e310692f1499af36eb54526f2e23766847d5;hp=c66c41b1200a02a8330ff15287ef0ef871fc82e4;hpb=009aaa975da342fdeaeb7932b95eac0e632e56cb;p=wannabuild.git

diff --git a/bin/keep-latest b/bin/keep-latest
index c66c41b..ebc4fa9 100755
--- a/bin/keep-latest
+++ b/bin/keep-latest
@@ -3,44 +3,72 @@
 use strict;
 use warnings;
 
+use lib '/org/wanna-build/lib';
 use WannaBuild; # for version compare
 
 if (!@ARGV) {
-	print STDERR "Usage: $0 Packages1 Packages2 ..\n";
+	print STDERR "Usage: $0 arch Packages1 Packages2 ..\n";
 	print STDERR "\n";
 	print STDERR "This perl scripts reads the Packages files given on the command line and\n";
-	print STDERR "outputs a Packages file which contians each package/architecture pair at most\n";
+	print STDERR "outputs a Packages file which contians each package at most\n";
 	print STDERR "once, using the one with the highest version number.\n";
 	print STDERR "";
 	print STDERR "Since it only looks at Package:, Version: and Architecture:, it works with\n";
 	print STDERR "Sources files as well\n";
+	print STDERR "\n";
+	print STDERR "It throws out any package not arch \"all\" or the given architecture.\n";
+	print STDERR "Pass \"source\" to keep all entries.\n";
+
 	exit 1;
 }
 
 my %version;
 my %data;
 
-local($/) = ""; # read in paragraph mode
-while (<>) {
-	my( $version, $name, $architecture );
-	$architecture="none"; # better to keep an entry too much than to delete an entry
-	/^Package:\s*(\S+)$/mi and $name = $1;
-	/^Version:\s*(\S+)$/mi and $version = $1;
-	/^Architecture:\s*(\S+)$/mi and $architecture = $1;
-	if (!defined $name or !defined $version) {
-		warn "Stanza without Package or Version\n";
+my $arch = shift @ARGV;
+
+#Read in all data files:
+for my $file (@ARGV) {
+	if (! -f $file) {
 		next;
 	}
-	my $key = $name."_".$architecture;
+	my $fh;
+	if ($file =~ /.gz$/) {
+		open($fh, '-|', 'gzip', '-d', '-c', $file) 
+			or die("Can't open pipe from gzip: $!");
+	} else {
+		open($fh, '<', $file)
+			or die("Can't open $file: $!");
+	}
+
+	local($/) = ""; # read in paragraph mode
+	while (<$fh>) {
+		my( $version, $name, $architecture );
+		$architecture="none"; # better to keep an entry too much than to delete an entry
+		/^Package:\s*(\S+)$/mi and $name = $1;
+		/^Version:\s*(\S+)$/mi and $version = $1;
+		/^Architecture:\s*(\S+)$/mi and $architecture = $1;
+		if (!defined $name or !defined $version) {
+			warn "Stanza without Package or Version\n";
+			next;
+		}
+		if ($arch ne "source" && defined $architecture && $architecture ne "all" && $architecture ne $arch) {
+			next;
+		}
+		my $key = $name;
 
-	if ((!exists $version{$key}) or version_less($version{$key},$version)) {
-		$version{$key} = $version;
-		$data{$key} = $_;
+		if ((!exists $version{$key}) or version_less($version{$key},$version)) {
+			$version{$key} = $version;
+			$data{$key} = $_;
+		}
 	}
+
+	close($fh);
 }
 
+#Now output the shortened list:
 foreach (values %data) {
-	s/\n*$/\n\n/;# always one empty line to separate stanzas
+	chomp; chomp; $_ .= "\n\n";
 	print;
 }