3 [[http://www.gnu.org/software/guix/][GNU Guix]] (IPA: /ɡiːks/) is a purely functional package manager, and
4 associated free software distribution, for the [[http://www.gnu.org/gnu/gnu.html][GNU system]]. In addition
5 to standard package management features, Guix supports transactional
6 upgrades and roll-backs, unprivileged package management, per-user
7 profiles, and garbage collection.
9 It provides [[http://www.gnu.org/software/guile/][Guile]] Scheme APIs, including a high-level embedded
10 domain-specific languages (EDSLs) to describe how packages are to be
13 A user-land free software distribution for GNU/Linux comes as part of
16 Guix is based on the [[http://nixos.org/nix/][Nix]] package manager.
21 GNU Guix currently depends on the following packages:
23 - [[http://gnu.org/software/guile/][GNU Guile 2.0.x]], version 2.0.5 or later
24 - [[http://gnupg.org/][GNU libgcrypt]]
25 - optionally [[http://savannah.nongnu.org/projects/guile-json/][Guile-JSON]], for the 'guix import pypi' command
26 - optionally [[http://www.gnutls.org][GnuTLS]] compiled with guile support enabled, for HTTPS support
27 in the 'guix download' command. Note that 'guix import pypi' requires
30 Unless `--disable-daemon' was passed, the following packages are needed:
32 - [[http://sqlite.org/][SQLite 3]]
33 - [[http://www.bzip.org][libbz2]]
34 - [[http://gcc.gnu.org][GCC's g++]]
36 When `--disable-daemon' was passed, you instead need the following:
38 - [[http://nixos.org/nix/][Nix]]
42 See the manual for the installation instructions, either by running
44 info -f doc/guix.info "(guix) Installation"
46 or by checking the [[http://www.gnu.org/software/guix/manual/guix.html#Installation][web copy of the manual]].
48 For information on installation from a Git checkout, please see the ‘HACKING’
51 * Installing Guix from Guix
53 You can re-build and re-install Guix using a system that already runs Guix.
56 - Install the dependencies (see 'Requirements' above) and build tools using
59 guix package --install autoconf automake bzip2 gcc-toolchain gettext \
60 guile libgcrypt pkg-config sqlite
62 - Set the environment variables that Guix recommends you to set during the
63 package installation process:
64 ACLOCAL_PATH, CPATH, LIBRARY_PATH, PKG_CONFIG_PATH
66 - Set the PATH environment variable to refer to the profile:
67 PATH=$HOME/.guix-profile/bin:$PATH
69 - Re-run the 'configure' script passing it the option
70 '--with-libgcrypt-prefix=$HOME/.guix-profile/', as well as
71 '--localstatedir=/somewhere', where '/somewhere' is the 'localstatedir'
72 value of the currently installed Guix (failing to do that would lead the
73 new Guix to consider the store to be empty!).
75 - Run "make", "make check", and "make install".
79 Guix does the high-level preparation of a /derivation/. A derivation is
80 the promise of a build; it is stored as a text file under
81 =/gnu/store/xxx.drv=. The (guix derivations) module provides the
82 `derivation' primitive, as well as higher-level wrappers such as
83 `build-expression->derivation'.
85 Guix does remote procedure calls (RPCs) to the Guix or Nix daemon (the
86 =guix-daemon= or =nix-daemon= command), which in turn performs builds
87 and accesses to the Nix store on its behalf. The RPCs are implemented
88 in the (guix store) module.
90 * Installing Guix as non-root
92 The Guix daemon allows software builds to be performed under alternate
93 user accounts, which are normally created specifically for this
94 purpose. For instance, you may have a pool of accounts in the
95 =guixbuild= group, and then you can instruct =guix-daemon= to use them
98 $ guix-daemon --build-users-group=guixbuild
100 However, unless it is run as root, =guix-daemon= cannot switch users.
101 In that case, it falls back to using a setuid-root helper program call
102 =nix-setuid-helper=. That program is not setuid-root by default when
103 you install it; instead you should run a command along these lines
104 (assuming Guix is installed under /usr/local):
106 # chown root.root /usr/local/libexec/nix-setuid-helper
107 # chmod 4755 /usr/local/libexec/nix-setuid-helper
111 GNU Guix is hosted at https://savannah.gnu.org/projects/guix/.
113 Please email <bug-guix@gnu.org> for bug reports or questions regarding
114 Guix and its distribution; email <gnu-system-discuss@gnu.org> for
115 general issues regarding the GNU system.
117 Join #guix on irc.freenode.net.
121 GNU Guix is based on [[http://nixos.org/nix/][the Nix package manager]]. It implements the same
122 package deployment paradigm, and in fact it reuses some of its code.
123 Yet, different engineering decisions were made for Guix, as described
126 Nix is really two things: a package build tool, implemented by a library
127 and daemon, and a special-purpose programming language. GNU Guix relies
128 on the former, but uses Scheme as a replacement for the latter.
130 Using Scheme instead of a specific language allows us to get all the
131 features and tooling that come with Guile (compiler, debugger, REPL,
132 Unicode, libraries, etc.) And it means that we have a general-purpose
133 language, on top of which we can have embedded domain-specific languages
134 (EDSLs), such as the one used to define packages. This broadens what
135 can be done in package recipes themselves, and what can be done around them.
137 Technically, Guix makes remote procedure calls to the ‘nix-worker’
138 daemon to perform operations on the store. At the lowest level, Nix
139 “derivations” represent promises of a build, stored in ‘.drv’ files in
140 the store. Guix produces such derivations, which are then interpreted
141 by the daemon to perform the build. Thus, Guix derivations can use
142 derivations produced by Nix (and vice versa).
144 With Nix and the [[http://nixos.org/nixpkgs][Nixpkgs]] distribution, package composition happens at
145 the Nix language level, but builders are usually written in Bash.
146 Conversely, Guix encourages the use of Scheme for both package
147 composition and builders. Likewise, the core functionality of Nix is
148 written in C++ and Perl; Guix relies on some of the original C++ code,
149 but exposes all the API as Scheme.
153 - [[http://nixos.org][Nix, Nixpkgs, and NixOS]], functional package manager and associated
154 software distribution, are the inspiration of Guix
155 - [[http://www.gnu.org/software/stow/][GNU Stow]] builds around the idea of one directory per prefix, and a
156 symlink tree to create user environments
157 - [[http://www.pvv.ntnu.no/~arnej/store/storedoc_6.html][STORE]] shares the same idea
158 - [[https://live.gnome.org/OSTree/][GNOME's OSTree]] allows bootable system images to be built from a
159 specified set of packages
160 - The [[http://www.gnu.org/s/gsrc/][GNU Source Release Collection]] (GSRC) is a user-land software
161 distribution; unlike Guix, it relies on core tools available on the