--*- mode: org; coding: utf-8; -*-
-
-#+TITLE: What's left to do?
-#+STARTUP: content hidestars
-
-Copyright © 2012, 2013 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
-
-** Remove dependency on OpenSSL
-
-The ‘openssl’ command-line tool is used in libstore to sign store paths
-to be exported, and to check such signatures. The signing keys are
-usually in /etc/nix/signing-key.{pub,sec}. They are a PKCS#8-encoded
-X.509 SubjectPublicKeyInfo. These can be decoded with the [[http://lists.gnu.org/archive/html/help-gnutls/2012-12/msg00012.html][C API of
-GnuTLS]], but not yet with its Guile bindings. There’s also
-‘gnutls_privkey_sign_data’ to sign, and related functions.
-
-
-** Add `guix publish' to publish the store using Guile's web server
-
-Generate narinfos and nars on the fly, upon HTTP GET requests.
-Ideally, extend .nix-cache-info to include the server's public key, and also
-reply to requests for .narinfo.sig.
-Optionally, use Guile-Avahi to publish the service.
-
-** MAYBE Add a substituter that uses the GNUnet DHT
-
-Would be neat if binaries could be pushed to and pulled from the GNUnet
-DHT. Guix users would sign their binaries, and define which binaries
-they trust.
-
-** Add a remote build hook
-
-Like scripts/build-remote.pl in Nix.
-
-* user interface
-** Add a package.el (Emacs) back-end
-
-Unfortunately package.el is monolithic, so most likely we’d have to
-write a new one based on it, as opposed to actually using it.
-
-* 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 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
-
-* synchronize package descriptions with GSRC and/or the [[http://directory.fsf.org][FSD]]
-
-Meta-data for GNU packages, including descriptions and synopses, can be
-dumped from the FSD:
-http://directory.fsf.org/wiki?title=GNU/Export&action=purge .
-We could periodically synchronize with that.
-
-* 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.
-
-* add a guildhall build system
-
-The Guildhall is Guile’s packaging system. It should be easy to add a
-‘guildhall-build-system’ that does the right thing based on guildhall
-recipes.
-
-* 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 ‘--list-generations’, and ‘--delete-generations’
-
-* guix build utils
-** MAYBE Change ‘ld-wrapper’ to add RPATH for libs passed by file name
-
-** MAYBE Add equivalent to chrpath that uses [[https://gitorious.org/guile-dlhacks/guile-dlhacks/][guile-dlhacks]]
-
-** MAYBE Add a hash-rewriting thing for deep dependency replacement without rebuild
-
-See [[https://github.com/NixOS/nixpkgs/commit/d1662d715514e6ef9d3dc29f132f1b3d8e608a18][Shea Levy's `replace-dependency' in Nixpkgs]].
-
-* distro
-** 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.
+-*- mode: org; coding: utf-8; -*-
+
+#+TITLE: What's left to do?
+#+STARTUP: content hidestars
+
+Copyright © 2012, 2013, 2014 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.
+
+* MAYBE Add a substituter that uses the GNUnet DHT or [[http://libswift.org][libswift]]
+
+Would be neat if binaries could be pushed to and pulled from the GNUnet DHT or
+rather libswift (since DHTs aren’t suited for large payloads). Guix users
+would sign their binaries, and define which binaries they trust.
+
+Use UPnP and similar to traverse NAT, like ‘filegive’ does.
+
+* user interface
+** add guile-ncurses interface
+
+* extend <package>
+** add ‘recommends’ field
+
+For instance, glibc, binutils, gcc, and ld-wrapper would recommend each other.
+‘guix package -i’ could ask interactively (?), or allow users to follow all or
+none of the recommendations.
+
+** 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’.
+
+** 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
+
+* synchronize non-GNU package descriptions with the [[http://directory.fsf.org][FSD]]
+
+Meta-data for GNU packages, including descriptions and synopses, can be
+dumped from the FSD:
+http://directory.fsf.org/wiki?title=GNU/Export&action=purge .
+We could periodically synchronize with that.
+
+* add a guildhall build system
+
+The Guildhall is Guile’s packaging system. It should be easy to add a
+‘guildhall-build-system’ that does the right thing based on guildhall
+recipes.
+
+* union
+
+Support sophisticated collision handling when building a union: honor
+per-package priorities, etc.
+
+* add GUIX_ALLOW_EXPENSIVE_TESTS
+
+Tests that need to download stuff or otherwise take a long time would only be
+run when that is defined.
+
+* guix build utils
+** MAYBE Change ‘ld-wrapper’ to add RPATH for libs passed by file name
+
+** MAYBE Add equivalent to chrpath that uses [[https://gitorious.org/guile-dlhacks/guile-dlhacks/][guile-dlhacks]]
+
+** MAYBE Add a hash-rewriting thing for deep dependency replacement without rebuild
+
+See [[https://github.com/NixOS/nixpkgs/commit/d1662d715514e6ef9d3dc29f132f1b3d8e608a18][Shea Levy's `replace-dependency' in Nixpkgs]].
+
+* distro
+** 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.
+