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* nix-pack-closure: store the top-level store paths in the closure.

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* nix-unpack-closure: extract the top-level paths from the closure and
  print them on stdout.  This allows them to be installed, e.g.,
  "nix-env -i $(nix-unpack-closure)".  (NIX-64)
This commit is contained in:
Eelco Dolstra 2007-01-13 19:50:42 +00:00
parent f25f900045
commit afe23b5f38
5 changed files with 39 additions and 1 deletions
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7
scripts/nix-pack-closure.in
View file

@ -21,6 +21,7 @@ mkdir "$tmpDir/contents", 0777 or die;
mkdir "$tmpDir/references", 0777 or die;
mkdir "$tmpDir/derivers", 0777 or die;
open TOPLEVEL, ">$tmpDir/top-level" or die;
my %storePaths;
@ -29,6 +30,12 @@ my %storePaths;
while (@ARGV) {
my $storePath = shift @ARGV;
# $storePath might be a symlink to the store, so resolve it.
$storePath = (`$binDir/nix-store --query --resolve '$storePath'`
or die "cannot resolve `$storePath'");
chomp $storePath;
print TOPLEVEL $storePath, "\n";
# Get the closure of this path.
my $pid = open(READ,
"$binDir/nix-store --query --requisites '$storePath'|") or die;

9
scripts/nix-unpack-closure.in
View file

@ -77,3 +77,12 @@ closedir(DIR) or die;
# Register the invalid paths as valid.
system("nix-store --register-validity <'$tmpDir/validity'") == 0
or die "nix-store --register-validity failed";
# Show the top-level paths so that something useful can be done with
# them, e.g., passing them to `nix-env -i'.
if (-e "$tmpDir/unpacked/top-level") {
open TOPLEVEL, "<$tmpDir/unpacked/top-level" or die;
while (<TOPLEVEL>) { print "$_"; }
close TOPLEVEL;
}