projects/guix·blob v0.5 · refs

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1-*- mode: org; coding: utf-8; -*-
2
3#+TITLE: What's left to do?
4#+STARTUP: content hidestars
5
6Copyright © 2012, 2013 Ludovic Courtès <[email protected]>
7
8 Copying and distribution of this file, with or without modification,
9 are permitted in any medium without royalty provided the copyright
10 notice and this notice are preserved.
11
12* integrate needed Nix code
13
14** Remove dependency on OpenSSL
15
16The ‘openssl’ command-line tool is used in libstore to sign store paths
17to be exported, and to check such signatures. The signing keys are
18usually in /etc/nix/signing-key.{pub,sec}. They are a PKCS#8-encoded
19X.509 SubjectPublicKeyInfo. These can be decoded with the [[http://lists.gnu.org/archive/html/help-gnutls/2012-12/msg00012.html][C API of
20GnuTLS]], but not yet with its Guile bindings. There’s also
21‘gnutls_privkey_sign_data’ to sign, and related functions.
22
23
24** Add `guix publish' to publish the store using Guile's web server
25
26Generate narinfos and nars on the fly, upon HTTP GET requests.
27Ideally, extend .nix-cache-info to include the server's public key, and also
28reply to requests for .narinfo.sig.
29Optionally, use Guile-Avahi to publish the service.
30
31** MAYBE Add a substituter that uses the GNUnet DHT or [[http://libswift.org][libswift]]
32
33Would be neat if binaries could be pushed to and pulled from the GNUnet DHT or
34rather libswift (since DHTs aren’t suited for large payloads). Guix users
35would sign their binaries, and define which binaries they trust.
36
37Use UPnP and similar to traverse NAT, like ‘filegive’ does.
38
39** Add a remote build hook
40
41Like scripts/build-remote.pl in Nix.
42
43* user interface
44** Add a package.el (Emacs) back-end
45
46package.el is quite monolithic, but we may be able to reuse/extend
47‘package-menu-mode’ or at least ‘tabulated-list-mode’.
48
49** add guile-ncurses interface
50
51* extend <origin>
52** add OpenPGP signatures:
53
54 (origin
55 (method http-fetch)
56 (uri "http://.../foo.tgz")
57 (signature-uri (string-append uri ".sig"))
58 (signer-openpgp-fingerprint "..."))
59
60** allow <origin> to be a derivation/package or a file
61
62* extend <package>
63
64** add ‘recommends’ field
65
66For instance, glibc, binutils, gcc, and ld-wrapper would recommend each other.
67‘guix package -i’ could ask interactively (?), or allow users to follow all or
68none of the recommendations.
69
70** add a ‘user-environment-hook’
71
72This should specify builder code to be run when building a user
73environment with ‘guix-package’. For instance, Texinfo’s hook would
74create a new ‘dir’.
75
76** extend ‘propagated-build-inputs’ with support for multiple outputs
77
78#+BEGIN_SRC scheme
79 (outputs '("out" "include"))
80 (propagated-build-inputs
81 `(((("i1" ,p1 "o1")
82 ("i2" ,p2))
83 => "include")
84 ("i3" ,p3)))
85#+END_SRC
86
87
88* synchronize package descriptions with GSRC and/or the [[http://directory.fsf.org][FSD]]
89
90Meta-data for GNU packages, including descriptions and synopses, can be
91dumped from the FSD:
92http://directory.fsf.org/wiki?title=GNU/Export&action=purge .
93We could periodically synchronize with that.
94
95See http://lists.gnu.org/archive/html/bug-guix/2013-04/msg00120.html for info
96on how to synchronize with GSRC's descriptions.
97
98* add a guildhall build system
99
100The Guildhall is Guile’s packaging system. It should be easy to add a
101‘guildhall-build-system’ that does the right thing based on guildhall
102recipes.
103
104* build-expression->derivation: define `%system' in the builder
105
106Would allow build expressions to have system-dependent code, like
107`glibc-dynamic-linker'.
108
109* add ‘allowed-references’ in <package>
110
111[[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]].
112
113* union
114
115Support sophisticated collision handling when building a union: check
116whether the colliding files are identical, honor per-package priorities,
117etc.
118
119* add GUIX_ALLOW_EXPENSIVE_TESTS
120
121Tests that need to download stuff or otherwise take a long time would only be
122run when that is defined.
123
124* add "guix challenge"
125
126Would download a substitute, and compare its contents against a (hopefully
127locally-built) copy.
128
129* guix package
130
131** add ‘--list-generations’, and ‘--delete-generations’
132
133* guix build utils
134** MAYBE Change ‘ld-wrapper’ to add RPATH for libs passed by file name
135
136** MAYBE Add equivalent to chrpath that uses [[https://gitorious.org/guile-dlhacks/guile-dlhacks/][guile-dlhacks]]
137
138** MAYBE Add a hash-rewriting thing for deep dependency replacement without rebuild
139
140See [[https://github.com/NixOS/nixpkgs/commit/d1662d715514e6ef9d3dc29f132f1b3d8e608a18][Shea Levy's `replace-dependency' in Nixpkgs]].
141
142* distro
143** port to new GNU/Linux platforms, notably ‘mipsel64-linux’
144** port to GNU/Hurd, aka. ‘i686-gnu’
145
146Problems include that current glibc releases do not build on GNU/Hurd.
147In addition, there haven’t been stable releases of GNU Mach, MiG, and
148Hurd, which would be a pre-condition.
149
150** make a bootable GNU/Linux-Libre distro, with OS configuration EDSL
151
152Similar in spirit to /etc/nixos/configuration.nix.