131 lines
2.9 KiB
Perl
Executable File
131 lines
2.9 KiB
Perl
Executable File
#! /usr/bin/perl
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# ex:ts=8 sw=4:
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# $OpenBSD: clean-old-distfiles,v 1.3 2012/01/29 14:35:40 espie Exp $
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#
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# Copyright (c) 2012 Marc Espie <espie@openbsd.org>
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#
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# Permission to use, copy, modify, and distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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use strict;
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use warnings;
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use feature qw(say);
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use OpenBSD::Getopt;
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use OpenBSD::md5;
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sub usage
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{
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my $err = shift;
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my $prog = $0;
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$prog =~ s/.*\///;
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$err =~ s/\sat.*//s;
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say STDERR "$prog: $err";
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say STDERR "Usage: $prog [-nv] [-e except] [cutdate]";
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exit 1;
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}
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our ($opt_v, $opt_n, $opt_e);
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eval { getopts('e:vn'); };
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if ($@) {
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usage($@);
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}
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if (@ARGV > 1) {
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usage("too many arguments");
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}
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sub really_remove
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{
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my $file = shift;
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say "rm $file" if $opt_v;
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return if $opt_n;
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if (!unlink $file) {
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say STDERR "Couldn't remove $file: $!";
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}
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}
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sub remove_file
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{
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my ($file, $sha) = @_;
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# let's do i-node caching to avoid doing the same file twice.
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my $basename = $file;
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my $inode;
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$basename =~ s/^.*\///; # remove directory
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$sha =~ m/(..)/;
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my $link = "by_cipher/sha256/$1/$sha/$basename";
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if (-f $link) {
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$inode = (stat _)[1];
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really_remove($link);
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}
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if (-f $file) {
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my $inode2 = (stat _)[1];
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if (defined $inode && $inode2 == $inode) {
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really_remove($file);
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} else {
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my $ck = OpenBSD::sha->new($file);
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if ($ck->stringize eq $sha) {
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really_remove($file);
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} else {
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say STDERR "SHA256 mismatch on $file\n";
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}
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}
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}
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}
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my $cutdate //= $ARGV[1];
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my $PORTSDIR = $ENV{PORTSDIR} // '/usr/ports';
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my $DISTDIR = $ENV{DISTDIR} // "$PORTSDIR/distfiles";
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chdir($DISTDIR) or die "Can't chdir to $DISTDIR";
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open my $fh, '<', "history" or die "No history to prune";
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my $fh2;
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unless ($opt_n) {
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open $fh2, '>', "history.new" or die "Can't write new history";
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}
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my $except = {};
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if ($opt_e) {
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open(my $e, '<', $opt_e) or die "Can't read exception file $opt_e: $!";
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while (<$e>) {
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chomp;
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$except->{$_} = 1;
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}
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close $e;
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}
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while (<$fh>) {
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my ($ts, $file, $sha);
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if (m/^(\d+)\s+SHA256\s*\((.*)\) \= (.*)$/) {
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($ts, $file, $sha) = ($1, $2, $3);
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} else {
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die "Bad history line $_";
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}
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if ($except->{$file} || defined $cutdate && $ts > $cutdate) {
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if ($fh2) {
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print $fh2 $_;
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}
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} else {
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remove_file($file, $sha);
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}
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}
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close $fh;
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if ($fh2) {
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close $fh2;
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unlink('history');
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rename('history.new', 'history');
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}
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