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-*- mode: org; coding: utf-8; -*-

#+TITLE: Hacking GNU Guix and Its Incredible Distro

Copyright © 2012, 2013, 2014, 2016, 2017, 2019 Ludovic Courtès <ludo@gnu.org>
Copyright © 2015, 2017 Mathieu Lirzin <mthl@gnu.org>
Copyright © 2017 Leo Famulari <leo@famulari.name>
Copyright © 2017 Arun Isaac <arunisaac@systemreboot.net>

  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.

* Contributing

See the manual for useful hacking information, either by running

  info -f doc/guix.info "Contributing"

or by checking the [[https://guix.gnu.org/manual/devel/en/html_node/Contributing.html][web copy of the manual]].
guix.texi (Invoking guix gc): Document it. Ludovic Courtès 2017-12-18guix gc: '--verify=foo' is reported as an error....Fixes <https://bugs.gnu.org/29761>. Reported by Martin Castillo <castilma@uni-bremen.de>. * guix/scripts/gc.scm (argument->verify-options): New procedure. (%options) ["verify"]: Adjust to use it. * tests/guix-gc.sh: Add test. Ludovic Courtès 2017-11-13tests: 'guix-gc.sh' passes even when 'out' or 'drv' are defined as env vars....This fixes a test failure exhibited by fb17a89912c2a3738dae716e30481c11e1c6f0ac whereby assignments to 'out' in guix-gc.sh would go to the 'out' environment variable, when it exists, which in turn prevents garbage collection of $out. * tests/guix-gc.sh: Add 'unset' invocations. Ludovic Courtès