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authorShea Levy <shea@shealevy.com>2016-08-10 08:40:58 -0400
committerShea Levy <shea@shealevy.com>2016-08-10 08:40:58 -0400
commite3128014dbef2f0cd172767ff8904d25f6efccbb (patch)
tree4eb9a61526cc6f3d65d29927e18d3bc847fdbf36 /scripts
parentfe94b72acc40c00f9a2a6ad78a28e62edd63d75c (diff)
Remove scripts/show-duplication.pl
Was added in 2006 to "measure the cost of the Nix approach". Given that it uses /usr/bin/perl, I think this is safe to remove.
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/show-duplication.pl73
1 files changed, 0 insertions, 73 deletions
diff --git a/scripts/show-duplication.pl b/scripts/show-duplication.pl
deleted file mode 100755
index 0604c6696..000000000
--- a/scripts/show-duplication.pl
+++ /dev/null
@@ -1,73 +0,0 @@
-#! /usr/bin/perl -w
-
-if (scalar @ARGV != 1) {
- print "syntax: show-duplication.pl PATH\n";
- exit 1;
-}
-
-my $root = $ARGV[0];
-
-
-my $nameRE = "(?:(?:[A-Za-z0-9\+\_]|(?:-[^0-9]))+)";
-my $versionRE = "(?:[A-Za-z0-9\.\-]+)";
-
-
-my %pkgInstances;
-
-
-my $pid = open(PATHS, "-|") || exec "nix-store", "-qR", $root;
-while (<PATHS>) {
- chomp;
- /^.*\/[0-9a-z]*-(.*)$/;
- my $nameVersion = $1;
- $nameVersion =~ /^($nameRE)(-($versionRE))?$/;
- $name = $1;
- $version = $3;
- $version = "(unnumbered)" unless defined $version;
-# print "$nameVersion $name $version\n";
- push @{$pkgInstances{$name}}, {version => $version, path => $_};
-}
-close PATHS or exit 1;
-
-
-sub pathSize {
- my $path = shift;
- my @st = lstat $path or die;
-
- my $size = $st[7];
-
- if (-d $path) {
- opendir DIR, $path or die;
- foreach my $name (readdir DIR) {
- next if $name eq "." || $name eq "..";
- $size += pathSize("$path/$name");
- }
- }
-
- return $size;
-}
-
-
-my $totalPaths = 0;
-my $totalSize = 0, $totalWaste = 0;
-
-foreach my $name (sort {scalar @{$pkgInstances{$b}} <=> scalar @{$pkgInstances{$a}}} (keys %pkgInstances)) {
- print "$name ", scalar @{$pkgInstances{$name}}, "\n";
- my $allSize = 0;
- foreach my $x (sort {$a->{version} cmp $b->{version}} @{$pkgInstances{$name}}) {
- $totalPaths++;
- my $size = pathSize $x->{path};
- $allSize += $size;
- print " $x->{version} $size\n";
- }
- my $avgSize = int($allSize / scalar @{$pkgInstances{$name}});
- my $waste = $allSize - $avgSize;
- $totalSize += $allSize;
- $totalWaste += $waste;
- print " average $avgSize, waste $waste\n";
-}
-
-
-my $avgDupl = $totalPaths / scalar (keys %pkgInstances);
-my $wasteFactor = ($totalWaste / $totalSize) * 100;
-print "average package duplication $avgDupl, total size $totalSize, total waste $totalWaste, $wasteFactor% wasted\n";