# -*- 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")`uix/'>summary</a><a href='/guix/refs/?id=3a56a440946b79f00bd3714f912480a6a454531a'>refs</a><a class='active' href='/guix/log/tests/ui.scm'>log</a><a href='/guix/tree/tests/ui.scm?id=3a56a440946b79f00bd3714f912480a6a454531a'>tree</a><a href='/guix/commit/tests/ui.scm?id=3a56a440946b79f00bd3714f912480a6a454531a'>commit</a><a href='/guix/diff/tests/ui.scm?id=3a56a440946b79f00bd3714f912480a6a454531a'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/tests/ui.scm'>
<input type='hidden' name='id' value='3a56a440946b79f00bd3714f912480a6a454531a'/><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=3a56a440946b79f00bd3714f912480a6a454531a'>root</a>/<a href='/guix/log/tests?id=3a56a440946b79f00bd3714f912480a6a454531a'>tests</a>/<a href='/guix/log/tests/ui.scm?id=3a56a440946b79f00bd3714f912480a6a454531a'>ui.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/ui.scm?id=3a56a440946b79f00bd3714f912480a6a454531a&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-12-13 17:46:39 +0100'>2022-12-13</span></td><td><a href='/guix/commit/tests/ui.scm?id=bbcd06e56c06376e640a7ac81a7109e7135a20f2'>ui: Take package upstream name into account when searching.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/ui.scm (%package-metrics): Add PACKAGE-UPSTREAM-NAME*.
* tests/ui.scm ("package-relevance and upstream name"): New test.

Co-authored-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Lars-Dominik Braun</td></tr>
<tr><td><span title='2022-06-16 23:57:41 +0200'>2022-06-16</span></td><td><a href='/guix/commit/tests/ui.scm?id=c8803d89fe531a1ff0de8ccdbc77c86249d5e778'>ui: Improve pager selection logic when less is not installed.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/ui.scm (find-available-pager): New procedure.
(call-with-paginated-output-port): Use it.
* guix/utils.scm (call-with-environment-variables): Allow clearing of
specified environment variables.
* tests/ui.scm (make-empty-file, assert-equals-find-available-pager):
New procedures.
("find-available-pager, GUIX_PAGER takes precedence")
("find-available-pager, PAGER takes precedence")
("find-available-pager, 'less' takes precedence")
("find-available-pager, 'more' takes precedence")
("find-available-pager, no pager"): New tests.

Co-authored-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Taiju HIGASHI</td></tr>