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Chris Cochrun 2022-01-03 12:41:35 -06:00
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<p>The more I move to VC<sup id="fnref:1"><a class="footnote" href="https://www.manueluberti.eu/feed#fn:1" rel="footnote">1</a></sup>, the more I end up relying on <kbd>M-!</kbd>
(<code class="language-plaintext highlighter-rouge">shell-command</code>). Admittedly, this is a tool I’ve hardly ever used before, but
since VC lacks many features covered by Magit, sometimes I need to interact with
the power of Git straight from the command line.</p>
<p>One of the best things about Magit is that I don’t have to remember the many Git
options to use it every day. Through transient menus, Magit makes Git a matter
of few key strokes. On the other hand, from time to time I find myself on remote
machines where Magit is not available, so it does not hurt to have a better
understanding of the basic Git operations at my disposal.</p>
<p>However, typing them all out every single time is not the kind of pleasant
activity a lazy Emacs user enjoys. Juri Linkov shared this little trick on
<code class="language-plaintext highlighter-rouge">emacs-devel</code><sup id="fnref:2"><a class="footnote" href="https://www.manueluberti.eu/feed#fn:2" rel="footnote">2</a></sup>:</p>
<div class="language-emacs-lisp highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">(</span><span class="nb">defun</span> <span class="nv">mu-minibuffer-complete-history</span> <span class="p">()</span>
<span class="s">"Complete minibuffer history."</span>
<span class="p">(</span><span class="nv">interactive</span><span class="p">)</span>
<span class="p">(</span><span class="nv">completion-in-region</span> <span class="p">(</span><span class="nv">minibuffer--completion-prompt-end</span><span class="p">)</span> <span class="p">(</span><span class="nv">point-max</span><span class="p">)</span>
<span class="p">(</span><span class="nb">symbol-value</span> <span class="nv">minibuffer-history-variable</span><span class="p">)</span>
<span class="no">nil</span><span class="p">))</span>
</code></pre></div></div>
<p>Juri also suggested to bind it to <kbd>C-TAB</kbd> in <code class="language-plaintext highlighter-rouge">minibuffer-local-map</code>
which, coincidentally, is the same key binding I have to manually complete with
Company outside of the minibuffer.</p>
<p>What Juri’s code does is popping up a <code class="language-plaintext highlighter-rouge">*Completions*</code> buffer with the history of
the commands used in the minibuffer. I only use it with <code class="language-plaintext highlighter-rouge">shell-command</code>, but try
it with <kbd>C-x C-f</kbd> for fun.</p>
<p>I leave it as a small exercise for the reader to understand how to switch from
the minibuffer to the <code class="language-plaintext highlighter-rouge">*Completions*</code> buffer and vice versa. Tip: <kbd>C-h
m</kbd> is your friend.</p>
<h3 id="notes">Notes</h3>
<div class="footnotes">
<ol>
<li id="fn:1">
<p>See <a href="https://www.manueluberti.eu/emacs/2021/11/27/vc/">A job for VC</a> and
<a href="https://www.manueluberti.eu/emacs/2021/12/05/vc-rebasing/">Rebasing with
VC</a>. <a class="reversefootnote" href="https://www.manueluberti.eu/feed#fnref:1">↩</a></p>
</li>
<li id="fn:2">
<p>See <a href="https://lists.gnu.org/archive/html/emacs-devel/2021-12/msg00802.html" target="_blank">History completion</a>. <a class="reversefootnote" href="https://www.manueluberti.eu/feed#fnref:2">↩</a></p>
</li>
</ol>
</div>