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* Script to garbage collect nix-push directories. It prints out all

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file names in the directory not included in any of the manifests
  specified on the command line.
This commit is contained in:
Eelco Dolstra 2005-03-14 14:03:41 +00:00
parent 012b812698
commit 1562dfe9ba
1 changed files with 75 additions and 0 deletions
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75
scripts/gc-releases.pl Executable file
View file

@ -0,0 +1,75 @@
#! /usr/bin/perl -w
use strict;
use readmanifest;
# Read the archive directories.
my @archives = ();
my %archives;
sub readDir {
my $dir = shift;
opendir(DIR, "$dir") or die "cannot open `$dir': $!";
my @as = readdir DIR;
foreach my $archive (@as) {
push @archives, $archive;
$archives{$archive} = "$dir/$archive";
}
closedir DIR;
}
readDir "/mnt/scratchy/eelco/public_html/nix-cache";
readDir "/mnt/scratchy/eelco/public_html/patches";
print STDERR scalar @archives, "\n";
# Read the manifests.
my %narFiles;
my %patches;
my %successors;
foreach my $manifest (@ARGV) {
print STDERR "loading $manifest\n";
if (readManifest($manifest, \%narFiles, \%patches, \%successors) < 3) {
# die "manifest `$manifest' is too old (i.e., for Nix <= 0.7)\n";
}
}
# Find the live archives.
my %usedFiles;
foreach my $narFile (keys %narFiles) {
foreach my $file (@{$narFiles{$narFile}}) {
$file->{url} =~ /\/([^\/]+)$/;
my $basename = $1;
die unless defined $basename;
# print $basename, "\n";
$usedFiles{$basename} = 1;
die "missing archive `$basename'"
unless defined $archives{$basename};
}
}
foreach my $patch (keys %patches) {
foreach my $file (@{$patches{$patch}}) {
$file->{url} =~ /\/([^\/]+)$/;
my $basename = $1;
die unless defined $basename;
# print $basename, "\n";
$usedFiles{$basename} = 1;
die "missing archive `$basename'"
unless defined $archives{$basename};
}
}
# Print out the dead archives.
foreach my $archive (@archives) {
next if $archive eq "." || $archive eq "..";
if (!defined $usedFiles{$archive}) {
print $archives{$archive}, "\n";
}
}