126 lines
4.0 KiB
Org Mode
126 lines
4.0 KiB
Org Mode
-*- mode: org; coding: utf-8; -*-
|
||
|
||
Copyright © 2012 Ludovic Courtès <ludo@gnu.org>
|
||
|
||
Copying and distribution of this file, with or without modification,
|
||
are permitted in any medium without royalty provided the copyright
|
||
notice and this notice are preserved.
|
||
|
||
* integrate needed Nix code
|
||
|
||
Guix uses Nix’s daemon (‘nix-worker’, later renamed to ‘nix-daemon’) to
|
||
actually perform builds, scheduling, substitution of pre-built binaries,
|
||
and GC-related tasks. The daemon mainly uses ‘libstore’ from Nix.
|
||
Integrating it in Guix itself will make Guix self-contained, thereby
|
||
simplifying our users’ lives.
|
||
|
||
* infrastructure
|
||
|
||
** have a Hydra instance build Guix packages
|
||
|
||
[[http://nixos.org/hydra/][Hydra]] is a continuous integration tool based on Nix. It now has
|
||
[[https://github.com/NixOS/hydra/commit/f27ae1d5663680400cb99cfb898970f34d8d21be][Guile/Guix support]], which allows “build recipes” written in Guile using
|
||
Guix to be used directly on Hydra.
|
||
|
||
For a start, we may use the instance at hydra.nixos.org, generously
|
||
provided by TU Delft. However, in the future, we may want to setup our
|
||
own instance at gnu.org.
|
||
|
||
* extend <origin>
|
||
** add OpenPGP signatures:
|
||
|
||
(origin
|
||
(method http-fetch)
|
||
(uri "http://.../foo.tgz")
|
||
(signature-uri (string-append uri ".sig"))
|
||
(signer-openpgp-fingerprint "..."))
|
||
|
||
** allow <origin> to be a derivation/package or a file
|
||
|
||
* extend <package>
|
||
|
||
** add support for ‘search-paths’
|
||
|
||
This should be passed to the build system, to extend package-specific
|
||
search path environment variables–like ‘GUILE_LOAD_PATH’, ‘PERL5LIB’,
|
||
etc.
|
||
|
||
** add a ‘user-environment-hook’
|
||
|
||
This should specify builder code to be run when building a user
|
||
environment with ‘guix-package’. For instance, Texinfo’s hook would
|
||
create a new ‘dir’.
|
||
|
||
** add ‘patches’ there
|
||
|
||
** extend ‘propagated-build-inputs’ with support for multiple outputs
|
||
|
||
#+BEGIN_SRC scheme
|
||
(outputs '("out" "include"))
|
||
(propagated-build-inputs
|
||
`(((("i1" ,p1 "o1")
|
||
("i2" ,p2))
|
||
=> "include")
|
||
("i3" ,p3)))
|
||
#+END_SRC
|
||
|
||
* support cross-compilation
|
||
|
||
Implement ‘package-cross-derivation’, and add the corresponding code in
|
||
‘gnu-build-system’. Then, actually bootstrap a cross-compilation
|
||
environment–e.g., a cross-GNU environment.
|
||
|
||
* gnu-build-system: produce a ‘debug’ derivation
|
||
|
||
Set a .gnu_debuglink in the main derivations to point to the sibling
|
||
file name (only the basename, to not retain a dependency on the ‘debug’
|
||
derivation.)
|
||
|
||
For /nix/store/xyz-foobar/bin/foo, we should have
|
||
/nix/store/abc-foobar-debug/lib/nix/store/xyz-foobar/bin/foo.debug (info
|
||
"(gdb) Separate Debug Files").
|
||
|
||
Users should have a default GDB setting with ~/.guix-profile/lib/debug
|
||
as their ‘debug-file-directory’.
|
||
|
||
* build-expression->derivation: define `%system' in the builder
|
||
|
||
Would allow build expressions to have system-dependent code, like
|
||
`glibc-dynamic-linker'.
|
||
|
||
* add ‘allowed-references’ in <package>
|
||
|
||
[[file:~/src/nix/src/libstore/build.cc::if%20(drv.env.find("allowedReferences")%20!%3D%20drv.env.end())%20{][See how Nix implements that internally]].
|
||
|
||
|
||
* union
|
||
|
||
Support sophisticated collision handling when building a union: check
|
||
whether the colliding files are identical, honor per-package priorities,
|
||
etc.
|
||
|
||
* guix-package
|
||
|
||
** add ‘--roll-back’
|
||
** add ‘--list-generations’, and ‘--delete-generations’
|
||
** add ‘--upgrade’
|
||
** add ‘--search’
|
||
|
||
* guix build utils
|
||
** Add equivalent to "rm -rf"
|
||
** Add equivalent to Nixpkgs's ‘wrapProgram’
|
||
** Add equivalent to chrpath, possibly using [[https://gitorious.org/guile-dlhacks/guile-dlhacks/][guile-dlhacks]]
|
||
|
||
* distro
|
||
** choose a name! (Jinn?)
|
||
** port to new GNU/Linux platforms, notably ‘mipsel64-linux’
|
||
** port to GNU/Hurd, aka. ‘i686-gnu’
|
||
|
||
Problems include that current glibc releases do not build on GNU/Hurd.
|
||
In addition, there haven’t been stable releases of GNU Mach, MiG, and
|
||
Hurd, which would be a pre-condition.
|
||
|
||
** make a bootable GNU/Linux-Libre distro, with OS configuration EDSL
|
||
|
||
Similar in spirit to /etc/nixos/configuration.nix.
|