;;; 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))))))))))
left'>Commit message (<a href='/guix/log/build-aux/update-guix-package.scm?id=dd2e6e31edff2d83c8820bb10e588c06495dc122&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-10-19 14:02:53 -0400'>2020-10-19</span></td><td><a href='/guix/commit/build-aux/update-guix-package.scm?id=5800d2aae2490f4192823323b72d17f2645aeb9e'>maint: update-guix-package: Prevent accidentally breaking guix pull.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2020-05-28 10:21:23 +0200'>2020-05-28</span></td><td><a href='/guix/commit/build-aux/update-guix-package.scm?id=ccd9107ed9e8b918c6fb521cc69ac459fe4257ac'>update-guix-package: Use 'origin-hash'.</a><span class='msg-avail'>...</span></td><td>Vincent Legoll</td></tr>
<tr><td><span title='2018-12-07 15:14:12 +0100'>2018-12-07</span></td><td><a href='/guix/commit/build-aux/update-guix-package.scm?id=6eac835f178c0c78637b0db8a4585a617b2f7622'>maint: update-guix-package: Really register GC roots.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-05-09 12:58:42 +0200'>2017-05-09</span></td><td><a href='/guix/commit/build-aux/update-guix-package.scm?id=aa1c3a0000793873ef31f33f8aa90f5ae1ab8b8d'>maint: update-guix-package: Protect the checkout from GC.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-05-07 00:18:36 +0200'>2017-05-07</span></td><td><a href='/guix/commit/build-aux/update-guix-package.scm?id=94fa8d76163bd08e6f680dc300b551f36415687e'>maint: Add 'update-guix-package' target.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>