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* Get `nix-push' working again. It now uses Nix/Fix to create Nix

Browse source 
archives (using the package in corepkgs/nar).
* queryPathByHash -> expandHash, and it takes an argument specifying
  the target path (which may be empty).
* Install the core Fix packages in $prefix/share/fix.  TODO: bootstrap
  Nix and install Nix as a Fix package.
This commit is contained in:
Eelco Dolstra 2003-07-10 13:41:28 +00:00
parent 5d4b90b689
commit d072485d28
16 changed files with 154 additions and 54 deletions
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2
scripts/Makefile.am
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@ -1,5 +1,5 @@
bin_SCRIPTS = nix-switch nix-collect-garbage \
nix-pull-prebuilts nix-push-prebuilts
nix-pull nix-push
install-exec-local:
$(INSTALL) -d $(sysconfdir)/profile.d

2
scripts/nix-pull Normal file
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@ -0,0 +1,2 @@
#! /usr/bin/perl -w

60
scripts/nix-push Normal file
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@ -0,0 +1,60 @@
#! /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 Fix expression that creates a Nar archive.
my $fixexpr =
"App(IncludeFix(\"nar/nar.fix\"), " .
"[ (\"path\", Path(\"$path\", Hash(\"$phash\"), [Include(\"$hash\")]))" .
", (\"name\", \"$phash.nar\")" .
"])";
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
system "rsync -av -e ssh @pushlist eelco\@losser.st-lab.cs.uu.nl:/home/eelco/public_html/nix-dist/";