-*- 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]].
elect name='h' onchange='this.form.submit();'>
<option value='koszko' selected='selected'>koszko</option>
<option value='koszko-scripts'>koszko-scripts</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>Wojtek's customized Guix</td><td class='sub right'></td></tr></table>
<table class='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=a0cf2bb5f1d28b636574fb6b974dd7ba1ded6d2d'>refs</a><a class='active' href='/guix/log/gnu/services/getmail.scm'>log</a><a href='/guix/tree/gnu/services/getmail.scm?id=a0cf2bb5f1d28b636574fb6b974dd7ba1ded6d2d'>tree</a><a href='/guix/commit/gnu/services/getmail.scm?id=a0cf2bb5f1d28b636574fb6b974dd7ba1ded6d2d'>commit</a><a href='/guix/diff/gnu/services/getmail.scm?id=a0cf2bb5f1d28b636574fb6b974dd7ba1ded6d2d'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/services/getmail.scm'>
<input type='hidden' name='id' value='a0cf2bb5f1d28b636574fb6b974dd7ba1ded6d2d'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=a0cf2bb5f1d28b636574fb6b974dd7ba1ded6d2d'>root</a>/<a href='/guix/log/gnu?id=a0cf2bb5f1d28b636574fb6b974dd7ba1ded6d2d'>gnu</a>/<a href='/guix/log/gnu/services?id=a0cf2bb5f1d28b636574fb6b974dd7ba1ded6d2d'>services</a>/<a href='/guix/log/gnu/services/getmail.scm?id=a0cf2bb5f1d28b636574fb6b974dd7ba1ded6d2d'>getmail.scm</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/services/getmail.scm?id=a0cf2bb5f1d28b636574fb6b974dd7ba1ded6d2d&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-12-02 00:02:12 +0100'>2022-12-02</span></td><td><a href='/guix/commit/gnu/services/getmail.scm?id=7c1161dba4c8930d3a500a72ccaaaf50df73f466'>records: 'match-record' checks fields at macro-expansion time.</a><span class='msg-avail'>...<span class='msg-tooltip'>This allows 'match-record' to be more efficient (field offsets are
computed at compilation time) and to report unknown fields at
macro-expansion time.

* guix/records.scm (map-fields): New macro.
(define-record-type*)[rtd-identifier]: New procedure.
Define TYPE as a macro and use a separate identifier for the RTD.
(lookup-field, match-record-inner): New macros.
(match-record): Rewrite in terms of 'match-error-inner'.
* tests/records.scm ("match-record, simple")
("match-record, unknown field"): New tests.
* gnu/services/cuirass.scm (cuirass-shepherd-service): Rename 'log-file'
local variable to 'main-log-file'.
* gnu/services/getmail.scm (serialize-getmail-configuration-file): Move
after &lt;getmail-configuration-file&gt; definition.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-11-17 23:03:50 +0100'>2022-11-17</span></td><td><a href='/guix/commit/gnu/services/getmail.scm?id=83c9e00ffbd41776c003f6992e9d613a5434fff9'>services: getmail: Use 'match-record'.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes a regression introduced in
44554e7133aa60e1b453436be1e80394189cabd9 whereby the wrong record fields
would be accessed, leading to a &lt;location&gt; record being spliced in the
result.

* gnu/services/getmail.scm (serialize-getmail-configuration-file): Use
'match-record' instead of 'match'.
(getmail-shepherd-services): Likewise.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-08-25 00:10:32 -0400'>2022-08-25</span></td><td><a href='/guix/commit/gnu/services/getmail.scm?id=ee08277a70d29b6d707524a4e17620f50b87adf4'>services: Use the new maybe/unset API.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/home/services/ssh.scm (serialize-address-family): Use the public API of
the maybe infrastructure.
* gnu/services/file-sharing.scm (serialize-maybe-string): Use maybe-value.
(serialize-maybe-file-object): Use maybe-value-set?.
* gnu/services/getmail.scm (getmail-retriever-configuration): Don't use
internals in unset field declarations.
(getmail-destination-configuration): Ditto.
* gnu/services/messaging.scm (raw-content?): Use maybe-value-set?.
(prosody-configuration): Use %unset-value.
* gnu/services/telephony.scm (jami-shepherd-services): Use maybe-value-set?.
(archive-name-&gt;username): Use maybe-value-set?.
* tests/services/configuration.scm ("maybe type, no default"): Use
%unset-value.

Modified-by: Maxim Cournoyer &lt;maxim.cournoyer@gmail.com&gt;
Signed-off-by: Maxim Cournoyer &lt;maxim.cournoyer@gmail.com&gt;
</span></span></td><td>Attila Lendvai</td></tr>