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#!/usr/bin/perl
#
# avg-pkg-build-time: display average build times of packages
# Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
# $Id: avg-pkg-build-time,v 1.13 2000/10/19 08:48:11 rnhodek Exp $
#
# $Log: avg-pkg-build-time,v $
# Revision 1.13 2000/10/19 08:48:11 rnhodek
# Check if /etc/sbuild.conf exists before including it.
#
# Revision 1.12 1999/07/13 07:27:39 rnhodek
# Use GDBM for time/space databases, as perl-5.004 seems not to contain
# DB_File anymore.
#
# Revision 1.11 1999/05/04 14:25:38 rnhodek
# Also can dump avg-space-db now.
#
# Revision 1.10 1999/02/01 09:29:35 rnhodek
# New option -f (--dbfile) to select DB on the command line.
#
# Revision 1.9 1998/11/26 07:04:28 james
# Handle 1 entry/n entries properly.
#
# Revision 1.8 1998/10/01 10:15:32 rnhodek
# Read sbuild.conf instead of wanna-build.conf; time db now defined
# there.
#
# Revision 1.7 1998/09/24 10:00:26 rnhodek
# Changed argument handling.
# Added --add to add a build time manually.
# New option --top to list ordered by build time.
#
# Revision 1.6 1998/09/17 11:10:23 rnhodek
# Added --dump mode for displaying raw contents.
# Align package names to 3 tab stops.
# Display also standard derivation (sigma).
#
# Revision 1.5 1998/09/17 09:28:18 rnhodek
# Fix typo.
#
# Revision 1.4 1998/09/17 09:27:07 rnhodek
# Need to open DB in read+write mode for --delete.
#
# Revision 1.3 1998/09/17 09:26:04 rnhodek
# Added --delete mode.
#
# Revision 1.2 1998/09/15 13:03:49 rnhodek
# Added cvs headers.
#
($main::HOME = $ENV{'HOME'})
or die "HOME not defined in environment!\n";
package conf;
$HOME = $main::HOME;
require "/etc/sbuild.conf" if -r "/etc/sbuild.conf";
require "$HOME/.sbuildrc" if -r "$HOME/.sbuildrc";
package main;
die "No avg-time database defined\n" if !$conf::avg_time_db;
use strict;
use GDBM_File;
use File::Basename;
my $do_space = 0;
my $delmode = 0;
my $dumpmode = 0;
my $addmode = 0;
my $topmode = 0;
my $open_mode = GDBM_READER;
my $db_file = $conf::avg_time_db;
if (basename($0) =~ /space$/) {
$do_space = 1;
$db_file = $conf::avg_space_db;
}
while( @ARGV && $ARGV[0] =~ /^-/ ) {
$_ = shift @ARGV;
if (/^(-s|--space)$/) {
$do_space = 1;
$db_file = $conf::avg_space_db;
}
elsif (/^--delete$/) {
$delmode = 1;
$open_mode = GDBM_WRCREAT;
}
elsif (/^--dump$/) {
$dumpmode = 1;
}
elsif (/^(-a|--add)$/) {
$addmode = 1;
$open_mode = GDBM_WRCREAT;
}
elsif (/^(-t|--top)$/) {
$topmode = 1;
}
elsif (/^(-f|--dbfile)$/) {
die "-f need argument\n" if !@ARGV;
$db_file = shift @ARGV;
}
}
my %db;
tie %db, 'GDBM_File', $db_file, $open_mode, 0664
or die "Can't open db\n";
die "No packages given for --delete.\n" if $delmode && !@ARGV;
if ($addmode) {
die "Args for --add must be package and a build time\n"
if @ARGV != 2 || $ARGV[1] !~ /^[\d.:]+$/;
my($pkg,$t) = @ARGV;
if (!$do_space) {
if ($t =~ /:/) {
my @a = split( ':', $t );
my $x;
for( $t = 0; $x = shift @a; ) {
$t = ($t * 60) + $x;
}
}
}
if (exists $db{$pkg}) {
if (!$do_space) {
my @times = split( /\s+/, $db{$pkg} );
push( @times, $t );
my $sum = 0;
foreach (@times[1..$#times]) { $sum += $_; }
$times[0] = $sum / (@times-1);
$db{$pkg} = join( ' ', @times );
}
else {
my $keepvals = 4;
my @values = split( /\s+/, $db{$pkg} );
shift @values;
unshift( @values, $t );
pop @values if @values > $keepvals;
my ($sum, $n, $weight, $i) = (0, 0, scalar(@values));
for( $i = 0; $i < @values; ++$i) {
$sum += $values[$i] * $weight;
$n += $weight;
}
unshift( @values, $sum/$n );
$db{$pkg} = join( ' ', @values );
}
}
else {
$db{$pkg} = "$t $t";
}
}
else {
my $pkg;
my @pkgs = sort sortfunc (@ARGV ? @ARGV : keys %db);
foreach $pkg (@pkgs) {
if (exists $db{$pkg}) {
if ($delmode) {
delete $db{$pkg};
print "$pkg: deleted\n";
}
elsif ($dumpmode) {
print "$pkg: $db{$pkg}\n";
}
else {
if (!$do_space) {
my @times = split( /\s+/, $db{$pkg} );
my $t = $times[0];
my($sum, $sumq) = (0, 0);
foreach (@times[1..$#times]) {
$sum += $_;
$sumq += $_*$_;
}
my $sigma;
$sigma = (@times <= 2) ? 0 :
sqrt( ($sumq - $sum*$sum/(@times-1))/(@times-2) );
printf "%s%02d:%02d:%02d (%d %s, sigma %02d:%02d:%02d)\n",
align($pkg), int($t/3600), int(($t%3600)/60),
int($t%60), @times-1, (@times == 2) ? "entry" : "entries",
int($sigma/3600), int(($sigma%3600)/60), int($sigma%60);
}
else {
my @values = split( /\s+/, $db{$pkg} );
printf "%s%6dk (%dk latest)\n",
align($pkg), $values[0], $values[1];
}
}
}
else {
print "$pkg: unknown\n";
}
}
}
untie %db;
exit 0;
sub align {
my $str = shift;
$str .= ":";
my $l = length($str);
$str .= "\t" if $l < 24;
$str .= "\t" if $l < 16;
$str .= "\t" if $l < 8;
return $str;
}
sub sortfunc {
if ($topmode) {
my $tima = (split( /\s+/, $db{$a} ))[0];
my $timb = (split( /\s+/, $db{$b} ))[0];
return $timb <=> $tima;
}
else {
return $a cmp $b;
}
}
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