3
0
Fork 0
forked from mirrors/nixpkgs
nixpkgs/lib/make-squashfs.nix
Peter Simons eb6e1310b8 strip trailing whitespace; no functional change
svn path=/nixos/trunk/; revision=29285
2011-09-14 18:20:50 +00:00

31 lines
877 B
Nix

{ stdenv, squashfsTools, perl, pathsFromGraph
, # The root directory of the squashfs filesystem is filled with the
# closures of the Nix store paths listed here.
storeContents ? []
}:
stdenv.mkDerivation {
name = "squashfs.img";
buildInputs = [perl squashfsTools];
# For obtaining the closure of `storeContents'.
exportReferencesGraph =
map (x: [("closure-" + baseNameOf x) x]) storeContents;
buildCommand =
''
# Add the closures of the top-level store objects.
storePaths=$(perl ${pathsFromGraph} closure-*)
# Also include a manifest of the closures in a format suitable
# for nix-store --load-db.
printRegistration=1 perl ${pathsFromGraph} closure-* > nix-path-registration
# Generate the squashfs image.
mksquashfs nix-path-registration $storePaths $out \
-keep-as-directory -all-root
'';
}