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nix-copy-closure: Drop Nix <= 1.7 compat

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This commit is contained in:
Eelco Dolstra 2016-05-31 11:00:40 +02:00
parent 8e74d1badb
commit b5ac83f3a3
1 changed files with 1 additions and 55 deletions
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56
perl/lib/Nix/CopyClosure.pm
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@ -50,16 +50,7 @@ sub copyTo {
my ($sshHost, $storePaths, $includeOutputs, $dryRun, $useSubstitutes) = @_;
# Connect to the remote host.
my ($from, $to);
eval {
($from, $to) = connectToRemoteNix($sshHost, []);
};
if ($@) {
chomp $@;
warn "$@; falling back to old closure copying method\n";
$@ = "";
return oldCopyTo(@_);
}
my ($from, $to) = connectToRemoteNix($sshHost, []);
copyToOpen($from, $to, $sshHost, $storePaths, $includeOutputs, $dryRun, $useSubstitutes);
@ -67,49 +58,4 @@ sub copyTo {
}
# For backwards compatibility with Nix <= 1.7. Will be removed
# eventually.
sub oldCopyTo {
my ($sshHost, $storePaths, $includeOutputs, $dryRun, $useSubstitutes) = @_;
# Get the closure of this path.
my @closure = reverse(topoSortPaths(computeFSClosure(0, $includeOutputs,
map { followLinksToStorePath $_ } @{$storePaths})));
# Optionally use substitutes on the remote host.
if (!$dryRun && $useSubstitutes) {
system "ssh $sshHost @globalSshOpts nix-store -r --ignore-unknown @closure";
# Ignore exit status because this is just an optimisation.
}
# Ask the remote host which paths are invalid. Because of limits
# to the command line length, do this in chunks. Eventually,
# we'll want to use ‘--from-stdin’, but we can't rely on the
# target having this option yet.
my @missing;
my $missingSize = 0;
while (scalar(@closure) > 0) {
my @ps = splice(@closure, 0, 1500);
open(READ, "set -f; ssh $sshHost @globalSshOpts nix-store --check-validity --print-invalid @ps|");
while (<READ>) {
chomp;
push @missing, $_;
my ($deriver, $narHash, $time, $narSize, $refs) = queryPathInfo($_, 1);
$missingSize += $narSize;
}
close READ or die;
}
# Export the store paths and import them on the remote machine.
if (scalar @missing > 0) {
print STDERR "copying ", scalar @missing, " missing paths to ‘$sshHost’...\n";
unless ($dryRun) {
open SSH, "| ssh $sshHost @globalSshOpts 'nix-store --import' > /dev/null" or die;
exportPaths(fileno(SSH), @missing);
close SSH or die "copying store paths to remote machine ‘$sshHost’ failed: $?";
}
}
}
1;