forked from lix-project/lix
* I said it couldn't be done. I was wrong.
This commit is contained in:
parent
4a83c12c5d
commit
31e140d70b
111
scripts/copying-collector.pl
Executable file
111
scripts/copying-collector.pl
Executable file
|
@ -0,0 +1,111 @@
|
|||
#! /usr/bin/perl -w
|
||||
|
||||
use strict;
|
||||
|
||||
my @paths = `nix-store -qR /home/eelco/.nix-profile/bin/firefox`;
|
||||
|
||||
my %copyMap;
|
||||
my %rewriteMap;
|
||||
|
||||
|
||||
my $counter = 0;
|
||||
|
||||
foreach my $path (@paths) {
|
||||
chomp $path;
|
||||
|
||||
$path =~ /^(.*)\/([^-]+)-(.*)$/ or die "invalid store path `$path'";
|
||||
my $hash = $2;
|
||||
|
||||
# my $newHash = "deadbeef" . (sprintf "%024d", $counter++);
|
||||
my $newHash = "deadbeef" . substr($hash, 0, 24);
|
||||
my $newPath = "/home/eelco/chroot/$1/$newHash-$3";
|
||||
|
||||
die unless length $newHash == length $hash;
|
||||
|
||||
$copyMap{$path} = $newPath;
|
||||
$rewriteMap{$hash} = $newHash;
|
||||
}
|
||||
|
||||
|
||||
my %rewriteMap2;
|
||||
|
||||
|
||||
sub rewrite;
|
||||
sub rewrite {
|
||||
my $src = shift;
|
||||
my $dst = shift;
|
||||
|
||||
if (-l $dst) {
|
||||
|
||||
my $target = readlink $dst or die;
|
||||
|
||||
foreach my $srcHash (keys %rewriteMap2) {
|
||||
my $dstHash = $rewriteMap{$srcHash};
|
||||
print " $srcHash -> $dstHash\n";
|
||||
$target =~ s/$srcHash/$dstHash/g;
|
||||
}
|
||||
|
||||
unlink $dst or die;
|
||||
|
||||
symlink $target, $dst;
|
||||
|
||||
}
|
||||
|
||||
elsif (-f $dst) {
|
||||
|
||||
print "$dst\n";
|
||||
|
||||
foreach my $srcHash (keys %rewriteMap2) {
|
||||
my $dstHash = $rewriteMap{$srcHash};
|
||||
print " $srcHash -> $dstHash\n";
|
||||
|
||||
my @stats = lstat $dst or die;
|
||||
|
||||
system "sed s/$srcHash/$dstHash/g < '$dst' > '$dst.tmp'";
|
||||
die if $? != 0;
|
||||
rename "$dst.tmp", $dst or die;
|
||||
|
||||
chmod $stats[2], $dst or die;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
elsif (-d $dst) {
|
||||
|
||||
chmod 0755, $dst;
|
||||
|
||||
opendir(DIR, "$dst") or die "cannot open `$dst': $!";
|
||||
my @files = readdir DIR;
|
||||
closedir DIR;
|
||||
|
||||
foreach my $file (@files) {
|
||||
next if $file eq "." || $file eq "..";
|
||||
rewrite "$src/$file", "$dst/$file";
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
foreach my $src (keys %copyMap) {
|
||||
my $dst = $copyMap{$src};
|
||||
print "$src -> $dst\n";
|
||||
|
||||
if (!-e $dst) {
|
||||
system "cp -prd $src $dst";
|
||||
die if $? != 0;
|
||||
|
||||
my @refs = `nix-store -q --references $src`;
|
||||
|
||||
%rewriteMap2 = ();
|
||||
foreach my $ref (@refs) {
|
||||
chomp $ref;
|
||||
|
||||
$ref =~ /^(.*)\/([^-]+)-(.*)$/ or die "invalid store path `$ref'";
|
||||
my $hash = $2;
|
||||
|
||||
$rewriteMap2{$hash} = $rewriteMap{$hash};
|
||||
}
|
||||
|
||||
rewrite $src, $dst;
|
||||
}
|
||||
}
|
Loading…
Reference in a new issue