Parse build logs for bloat data from warren@netscape.com's bloat tool.

git-svn-id: svn://10.0.0.236/trunk@51614 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/webtools/tinderbox/bloat.pl

@@ -0,0 +1,85 @@
+#! /usr/bonsaitools/bin/perl
+# -*- Mode: perl; indent-tabs-mode: nil -*-
+#
+# The contents of this file are subject to the Mozilla Public License
+# Version 1.1 (the "License"); you may not use this file except in
+# compliance with the License. You may obtain a copy of the License at
+# http://www.mozilla.org/MPL/
+#
+# Software distributed under the License is distributed on an "AS IS"
+# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
+# License for the specific language governing rights and limitations
+# under the License.
+#
+# The Original Code is Tinderbox
+#
+# The Initial Developer of the Original Code is Netscape Communications
+# Corporation. Portions created by Netscape are Copyright (C) 1999
+# Netscape Communications Corporation. All Rights Reserved.
+#
+# Contributor(s): Stephen Lamm <slamm@netscape.com>
+
+#
+# bloat.pl - Process bloat data from warren@netscape.com's bloat tool.
+#   Write data to $tree/bloat.dat in the following format,
+#
+#  <logfilename>|<% leaks increase>|<% bloat increase>
+#
+
+sub usage {
+  warn "./bloat.pl <tree> <logfile>";
+}
+
+use FileHandle;
+
+unless ($#ARGV == 1) {
+  &usage;
+  die "Error: Wrong number of arguments\n";
+}
+
+($tree, $logfile) = @ARGV;
+
+die "Error: No tree named $tree" unless -r "$tree/treedata.pl";
+require "$tree/treedata.pl";
+
+# Seach the build log for the bloat data
+#
+$fh = new FileHandle "gunzip -c $tree/$logfile |" 
+  or die "Unable to open $tree/$logfile\n";
+($leaks, $bloat) = find_bloat_data($fh);
+$fh->close;
+
+unless (defined $leaks and defined $bloat) {
+  die "No bloat data found in log.\n";
+}
+
+# Save the bloat data to 'bloat.dat'
+#
+open BLOAT, ">>$tree/bloat.dat" or die "Unable to open $tree/bloat.dat";
+print BLOAT "$logfile|$leaks|$bloat\n";
+close BLOAT;
+
+
+# end of main
+#============================================================
+
+sub find_bloat_data {
+  my ($fh) = $_[0];
+  local $_;
+  my $inBloatStats = 0;
+
+  while (<$fh>) {
+    if ($inBloatStats) {
+      if (/^TOTAL/) {
+        chomp;
+        my ($leaks, $bloat) = (split)[2,4];
+        chop $leaks;
+        chop $bloat;
+        return $leaks, $bloat;
+      }
+    } else {
+      $inBloatStats = 1 if /^\#* BLOAT STATISTICS/;
+    }
+  }
+  return undef, undef;
+}