* A function for generating squashfs filesystem images.

svn path=/nixos/branches/modular-nixos/; revision=15926
This commit is contained in:
Eelco Dolstra 2009-06-10 13:40:35 +00:00
parent 262ddf0854
commit 27230eed8e
2 changed files with 32 additions and 1 deletions

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@ -52,7 +52,8 @@ for i in $storePaths; do
done
# Also put a nix-pull manifest of the closures on the CD.
# Also include a manifest of the closures in a format suitable for
# nix-store --load-db.
printRegistration=1 perl $pathsFromGraph closure-* > nix-path-registration
echo "nix-path-registration=nix-path-registration" >> pathlist

30
lib/make-squashfs.nix Normal file
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@ -0,0 +1,30 @@
{ 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
'';
}