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#! /usr/bin/perl -w
my $fixfile = "/tmp/nix-push-tmp.fix";
open FIX, ">$fixfile";
print FIX "[";
my $first = 1;
foreach my $id (@ARGV) {
die unless $id =~ /^([0-9a-z]{32})$/;
# Get all paths referenced by the normalisation of the given
# fstate expression.
system "nix --install $id";
if ($?) { die "`nix --install' failed"; }
my @paths;
open PATHS, "nix --query --requisites --include-successors $id 2> /dev/null |" or die "nix -qr";
while (<PATHS>) {
chomp;
die "bad: $_" unless /^\//;
push @paths, $_;
}
close PATHS;
# Also add all normal forms that are contained in these paths.
# open PATHS, "nix --query --generators --path @paths |" or die "nix -qg";
# while (<PATHS>) {
# chomp;
# die "bad: $_" unless /^\//;
# push @paths, $_;
# }
# close PATHS;
# For each path, create a Fix expression that turns the path into
# a Nix archive.
foreach my $path (@paths) {
next unless ($path =~ /\/([0-9a-z]{32})[^\/]*/);
print "$path\n";
my $pathid = $1;
# Construct a name for the Nix archive. If the file is an
# fstate successor, encode this into the name.
my $name = $pathid;
if ($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 $fixexpr =
"App(IncludeFix(\"nar/nar.fix\"), " .
"[ (\"path\", Slice([\"$pathid\"], [(\"$path\", \"$pathid\", [])]))" .
"])";
print FIX "," unless ($first);
$first = 0;
print FIX $fixexpr;
}
}
print FIX "]";
close FIX;
# Instantiate a Nix expression from the Fix expression.
my @nids;
print STDERR "running fix...\n";
open NIDS, "fix $fixfile |" or die "cannot run fix";
while (<NIDS>) {
chomp;
die unless /^([0-9a-z]{32})$/;
push @nids, $1;
}
# Realise the Nix expression.
my @pushlist;
print STDERR "creating archives...\n";
system "nix --install @nids > /dev/null";
if ($?) { die "`nix --install' failed"; }
open NIDS, "nix --query --list @nids |" or die "cannot run nix";
while (<NIDS>) {
chomp;
die unless (/^\//);
print "$_\n";
push @pushlist, "$_/*";
}
# 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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