# -*- mode: snippet -*-
# name: guix-commit-message-update-package
# key: update
# condition: git-commit-mode
# --

gnu: ${1:`(with-temp-buffer
           (magit-git-wash #'magit-diff-wash-diffs
             "diff" "--staged")
           (goto-char (point-min))
           (when (re-search-forward "^[ ]*(define-public \\(\\S-+\\)" nil 'noerror)
             (match-string-no-properties 1)))`}: Update to ${2:`(with-temp-buffer
    (magit-git-wash #'magit-diff-wash-diffs
      "diff" "--staged")
    (goto-char (point-min))
    (search-forward "name" nil 'noerror)
    (search-forward "+" nil 'noerror)   ; first change
    (when (and (search-forward "version " nil 'noerror)
               (looking-at-p "\""))
      (let ((end (save-excursion (search-forward "\")" nil 'noerror))))
        (when end
          (forward-char)
          (buffer-substring-no-properties (point) (- end 2))))))`}.

* `(car (magit-staged-files))` ($1): Update to $2.$0
`(mapconcat (lambda (file) (concat "* " file)) (cdr (magit-staged-files)) "\n")`'tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=7c62015837e6f8a0e831e2c9da51d9664e95115c'>refs</a><a class='active' href='/guix/log/tests/git.scm?showmsg=1'>log</a><a href='/guix/tree/tests/git.scm?id=7c62015837e6f8a0e831e2c9da51d9664e95115c'>tree</a><a href='/guix/commit/tests/git.scm?id=7c62015837e6f8a0e831e2c9da51d9664e95115c'>commit</a><a href='/guix/diff/tests/git.scm?id=7c62015837e6f8a0e831e2c9da51d9664e95115c'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/tests/git.scm'>
<input type='hidden' name='id' value='7c62015837e6f8a0e831e2c9da51d9664e95115c'/><input type='hidden' name='showmsg' value='1'/><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=7c62015837e6f8a0e831e2c9da51d9664e95115c&amp;showmsg=1'>root</a>/<a href='/guix/log/tests?id=7c62015837e6f8a0e831e2c9da51d9664e95115c&amp;showmsg=1'>tests</a>/<a href='/guix/log/tests/git.scm?id=7c62015837e6f8a0e831e2c9da51d9664e95115c&amp;showmsg=1'>git.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/tests/git.scm?id=7c62015837e6f8a0e831e2c9da51d9664e95115c'>Collapse</a>)</th><th class='left'>Author</th></tr>
<tr class='logheader'><td><span title='2021-09-18 19:37:45 +0200'>2021-09-18</span></td><td class='logsubject'><a href='/guix/commit/tests/git.scm?id=59ee10754eddddb99e4a80b9e18aa12ed1b3d77a'>import: Add 'generic-git' updater.</a></td><td>Xinglu Chen</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* guix/git.scm (ls-remote-refs): New procedure.
* tests/git.scm ("remote-refs" "remote-refs: only tags"): New tests.
* guix/import/git.scm: New file.
* doc/guix.texi (Invoking guix refresh): Document it.
* tests/import-git.scm: New test file.
* Makefile.am (MODULES, SCM_TESTS): Register the new files.

Co-authored-by: Sarah Morgensen &lt;iskarian@mgsn.dev&gt;
Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2020-06-09 00:34:52 +0200'>2020-06-09</span></td><td class='logsubject'><a href='/guix/commit/tests/git.scm?id=72357e2170e88f73c11ff089f87a744cee8606ec'>git: 'commit-difference' really excludes the ancestors of #:excluded.</a></td><td>Ludovic Courtès</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* guix/git.scm (commit-difference): Initialize VISITED to the closure of
OLD and EXCLUDED, as written in the docstring.
* tests/git.scm ("commit-difference, excluded commits"): Adjust
accordingly.


</td></tr>
<tr class='logheader'><td><span title='2020-05-25 00:00:28 +0200'>2020-05-25</span></td><td class='logsubject'><a href='/guix/commit/tests/git.scm?id=c098c11be8eb9e0c12be42640721e3cb21c37628'>git: Add 'commit-relation'.</a></td><td>Ludovic Courtès</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* guix/git.scm (commit-relation): New procedure.
* tests/git.scm ("commit-relation"): New test.


</td></tr>
<tr class='logheader'><td><span title='2019-12-27 13:52:49 +0100'>2019-12-27</span></td><td class='logsubject'><a href='/guix/commit/tests/git.scm?id=785af04a7574867dc940c791daa938a2432d0450'>git: 'commit-difference' takes a list of excluded commits.</a></td><td>Ludovic Courtès</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* guix/git.scm (commit-closure): Add 'visited' optional parameter.
(commit-difference): Add 'excluded' optional parameter; pass second
argument to 'commit-closure'.
* tests/git.scm ("commit-difference, excluded commits"): New test.


</td></tr>
<tr class='logheader'><td><span title='2019-09-23 10:38:43 +0200'>2019-09-23</span></td><td class='logsubject'><a href='/guix/commit/tests/git.scm?id=873f6f1334ab06a69e768a8aea0054404237542f'>git: Add 'commit-difference'.</a></td><td>Ludovic Courtès</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* guix/git.scm (commit-closure, commit-difference): New procedures.
* guix/tests/git.scm, tests/git.scm: New files.
* Makefile.am (dist_noinst_DATA): Add guix/tests/git.scm.
(SCM_TESTS): Add tests/git.scm.


</td></tr>