# -*- 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")`'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=4f8071f2a6dfeabe12952fcbd0ae4a11cf56568e'>refs</a><a class='active' href='/guix/log/gnu/packages/opencl.scm'>log</a><a href='/guix/tree/gnu/packages/opencl.scm?id=4f8071f2a6dfeabe12952fcbd0ae4a11cf56568e'>tree</a><a href='/guix/commit/gnu/packages/opencl.scm?id=4f8071f2a6dfeabe12952fcbd0ae4a11cf56568e'>commit</a><a href='/guix/diff/gnu/packages/opencl.scm?id=4f8071f2a6dfeabe12952fcbd0ae4a11cf56568e'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/packages/opencl.scm'>
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<div class='path'>path: <a href='/guix/log/?id=4f8071f2a6dfeabe12952fcbd0ae4a11cf56568e'>root</a>/<a href='/guix/log/gnu?id=4f8071f2a6dfeabe12952fcbd0ae4a11cf56568e'>gnu</a>/<a href='/guix/log/gnu/packages?id=4f8071f2a6dfeabe12952fcbd0ae4a11cf56568e'>packages</a>/<a href='/guix/log/gnu/packages/opencl.scm?id=4f8071f2a6dfeabe12952fcbd0ae4a11cf56568e'>opencl.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/packages/opencl.scm?id=4f8071f2a6dfeabe12952fcbd0ae4a11cf56568e&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2019-02-26 22:26:35 +0200'>2019-02-26</span></td><td><a href='/guix/commit/gnu/packages/opencl.scm?id=35aa016af104567a6632abdbad72e5fd3de8e2ca'>gnu: beignet: Limit supported architectures.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/opencl.scm (beignet)[supported-systems]: New field.
</span></span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2018-12-13 00:08:05 -0500'>2018-12-13</span></td><td><a href='/guix/commit/gnu/packages/opencl.scm?id=b42b5afdf4040939f5b1648664400b0c75935c73'>gnu: Fix misplaced commas (unquotes).</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/java.scm (ant-bootstrap),
gnu/packages/kde.scm (kdenlive),
gnu/packages/lxqt.scm (lxqt-panel, lxqt-runner),
gnu/packages/mpd.scm (ncmpc),
gnu/packages/opencl.scm (beignet),
gnu/packages/pdf.scm (zathura-pdf-mupdf),
gnu/packages/video.scm (streamlink),
gnu/packages/web-browsers.scm (luakit),
gnu/packages/web.scm (perl-libwww),
gnu/packages/wm.scm (ghc-xmonad-contrib): Fix misplaced commas (unquotes).
</span></span></td><td>Mark H Weaver</td></tr>