pyrox.dev
1{ lib, stdenv, callPackage, closureInfo, xorriso, syslinux, libossp_uuid, squashfsTools
2
3, # The file name of the resulting ISO image.
4 isoName ? "cd.iso"
5
6, # The files and directories to be placed in the ISO file system.
7 # This is a list of attribute sets {source, target} where `source'
8 # is the file system object (regular file or directory) to be
9 # grafted in the file system at path `target'.
10 contents
11
12, # In addition to `contents', the closure of the store paths listed
13 # in `storeContents' are also placed in the Nix store of the CD.
14 # This is a list of attribute sets {object, symlink} where `object'
15 # is a store path whose closure will be copied, and `symlink' is a
16 # symlink to `object' that will be added to the CD.
17 storeContents ? []
18
19, # In addition to `contents', the closure of the store paths listed
20 # in `squashfsContents' is compressed as squashfs and the result is
21 # placed in /nix-store.squashfs on the CD.
22 # FIXME: This is a performance optimization to avoid Hydra copying
23 # the squashfs between builders and should be removed when Hydra
24 # is smarter about scheduling.
25 squashfsContents ? []
26
27, # Compression settings for squashfs
28 squashfsCompression ? "xz -Xdict-size 100%"
29
30, # Whether this should be an El-Torito bootable CD.
31 bootable ? false
32
33, # Whether this should be an efi-bootable El-Torito CD.
34 efiBootable ? false
35
36, # Whether this should be an hybrid CD (bootable from USB as well as CD).
37 usbBootable ? false
38
39, # The path (in the ISO file system) of the boot image.
40 bootImage ? ""
41
42, # The path (in the ISO file system) of the efi boot image.
43 efiBootImage ? ""
44
45, # The path (outside the ISO file system) of the isohybrid-mbr image.
46 isohybridMbrImage ? ""
47
48, # Whether to compress the resulting ISO image with zstd.
49 compressImage ? false, zstd
50
51, # The volume ID.
52 volumeID ? ""
53}:
54
55assert bootable -> bootImage != "";
56assert efiBootable -> efiBootImage != "";
57assert usbBootable -> isohybridMbrImage != "";
58
59let
60 needSquashfs = squashfsContents != [];
61 makeSquashfsDrv = callPackage ./make-squashfs.nix {
62 storeContents = squashfsContents;
63 comp = squashfsCompression;
64 };
65in
66stdenv.mkDerivation {
67 name = isoName;
68 __structuredAttrs = true;
69
70 buildCommandPath = ./make-iso9660-image.sh;
71 nativeBuildInputs = [ xorriso syslinux zstd libossp_uuid ]
72 ++ lib.optionals needSquashfs makeSquashfsDrv.nativeBuildInputs;
73
74 inherit isoName bootable bootImage compressImage volumeID efiBootImage efiBootable isohybridMbrImage usbBootable;
75
76 sources = map (x: x.source) contents;
77 targets = map (x: x.target) contents;
78
79 objects = map (x: x.object) storeContents;
80 symlinks = map (x: x.symlink) storeContents;
81
82 squashfsCommand = lib.optionalString needSquashfs makeSquashfsDrv.buildCommand;
83
84 # For obtaining the closure of `storeContents'.
85 closureInfo = closureInfo { rootPaths = map (x: x.object) storeContents; };
86}