;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

;; Build Guix using Guix.

(use-modules (srfi srfi-26))

;; Add ~/.config/guix/current to the search path.
(eval-when (expand load eval)
  (and=> (or (getenv "XDG_CONFIG_HOME")
             (and=> (getenv "HOME")
                    (cut string-append <> "/.config/guix/current")))
         (lambda (current)
           (set! %load-path
             (cons (string-append current "/share/guile/site/"
                                  (effective-version))
                   %load-path))
           (set! %load-compiled-path
             (cons (string-append current "/lib/guile/" (effective-version)
                                  "/site-ccache")
                   %load-compiled-path)))))

(use-modules (guix) (guix ui)
             (guix git-download)
             (ice-9 match))

(match (command-line)
  ((program source)
   (with-error-handling
     (with-store store
       (let* ((script (string-append source "/build-aux/build-self.scm"))
              (build  (primitive-load script))
              (git?   (git-predicate source)))
         (run-with-store store
           ;; TODO: Extract #:version and #:commit using Guile-Git.
           (mlet* %store-monad ((source (interned-file source "guix-source"
                                                       #:select? git?
                                                       #:recursive? #t))
                                (drv    (build source #:pull-version 1)))
             (mbegin %store-monad
               (show-what-to-build* (list drv))
               (built-derivations (list drv))
               (with-monad %store-monad
                 (display (derivation->output-path drv))
                 (newline)
                 (return drv))))))))))
tches</a>/<a href='/guix/log/gnu/packages/patches/rust-1.19-mrustc.patch?id=30e06c2cee92fa9a9b9e86bb8bf9c3e8d458ef9b'>rust-1.19-mrustc.patch</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/patches/rust-1.19-mrustc.patch?id=30e06c2cee92fa9a9b9e86bb8bf9c3e8d458ef9b&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2018-09-02 00:09:34 +0200'>2018-09-02</span></td><td><a href='/guix/commit/gnu/packages/patches/rust-1.19-mrustc.patch?id=3159ef7c99c646b78b04cedb1bd3525c301ef978'>gnu: rust: Bootstrap (only) Rust 1.19.0 by mrustc.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/patches/rust-1.19-mrustc.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/rust.scm (rust-1.19)[source]: Add patch
"rust-1.19-mrustc.patch".
[arguments]&lt;#:modules&gt;: New field.
&lt;#:phases&gt;[patch-cargo-tomls]: New phase.
&lt;#:phases&gt;[build]: Modify.
&lt;#:phases&gt;[install]: Modify.
[native-inputs]: Replace rust-bootstrap by mrustc.
(rust-1.23)[native-inputs]: New field.
[arguments]&lt;#:phases&gt;: Delete phase "patch-cargo-tomls".
</span></span></td><td>Danny Milosavljevic</td></tr>