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#! /usr/bin/perl -w
my @pushlist;
foreach my $hash (@ARGV) {
die unless $hash =~ /^([0-9a-z]{32})$/;
# Get all paths referenced by the normalisation of the given
# fstate expression.
my @paths;
open PATHS, "nix -qrh $hash 2> /dev/null |" or die "nix -qrh";
while (<PATHS>) {
chomp;
next unless /^\//;
push @paths, $_;
}
close PATHS;
# For each path, create a Fix expression that turns the path into
# a Nix archive.
foreach my $path (@paths) {
# Hash the path.
my $phash = `nix-hash $path`;
$? and die "nix-hash";
chomp $phash;
die unless $phash =~ /^([0-9a-z]{32})$/;
# Construct a name for the Nix archive. If the file is an
# fstate successor, encode this into the name.
my $name = $phash;
if ($path =~ /-s-([0-9a-z]{32}).nix$/) {
$name = "$name-s-$1";
}
$name = $name . ".nar.bz2";
# Construct a Fix expression that creates a Nix archive.
my $fixexpr =
"App(IncludeFix(\"nar/nar.fix\"), " .
"[ (\"path\", Path(\"$path\", Hash(\"$phash\"), [Include(\"$hash\")]))" .
", (\"name\", \"$name\")" .
"])";
my $fixfile = "/tmp/nix-push-tmp.fix";
open FIX, ">$fixfile";
print FIX $fixexpr;
close FIX;
# Instantiate a Nix expression from the Fix expression.
my $nhash = `fix $fixfile`;
$? and die "instantiating Nix archive expression";
chomp $nhash;
die unless $nhash =~ /^([0-9a-z]{32})$/;
# Realise the Nix expression.
my $npath = `nix -qph $nhash 2> /dev/null`;
$? and die "creating Nix archive";
chomp $npath;
push @pushlist, $npath;
print "$path -> $npath\n";
}
}
# Push the prebuilts to the server. !!! FIXME
if (scalar @pushlist > 0) {
system "rsync -av -e ssh @pushlist eelco\@losser.st-lab.cs.uu.nl:/home/eelco/public_html/nix-dist/";
}
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