nixpkgs/nixos/lib/make-system-tarball.nix
Jaka Hudoklin d77150df30 nixos: make-system-tarball, add option for extra arguments for tar
Sometimes extra arguments when making tarball are required,
for example if making a container owner of files has to be changed
to root.
2014-08-25 03:29:07 +02:00

41 lines
1.3 KiB
Nix

{ stdenv, perl, xz, pathsFromGraph
, # The file name of the resulting tarball
fileName ? "nixos-system-${stdenv.system}"
, # The files and directories to be placed in the tarball.
# This is a list of attribute sets {source, target} where `source'
# is the file system object (regular file or directory) to be
# grafted in the file system at path `target'.
contents
, # In addition to `contents', the closure of the store paths listed
# in `packages' are also placed in the Nix store of the tarball. This is
# a list of attribute sets {object, symlink} where `object' if a
# store path whose closure will be copied, and `symlink' is a
# symlink to `object' that will be added to the tarball.
storeContents ? []
# Extra tar arguments
, extraArgs ? ""
}:
stdenv.mkDerivation {
name = "tarball";
builder = ./make-system-tarball.sh;
buildInputs = [perl xz];
inherit fileName pathsFromGraph extraArgs;
# !!! should use XML.
sources = map (x: x.source) contents;
targets = map (x: x.target) contents;
# !!! should use XML.
objects = map (x: x.object) storeContents;
symlinks = map (x: x.symlink) storeContents;
# For obtaining the closure of `storeContents'.
exportReferencesGraph =
map (x: [("closure-" + baseNameOf x.object) x.object]) storeContents;
}