https://eed3si9n.com/tags/scruff/ Recent content in Scruff on eed3si9n Hugo en-us Tue, 03 Nov 2026 00:00:00 +0000 https://eed3si9n.com/scruff-scala-code-formatter/ Tue, 03 Nov 2026 00:00:00 +0000 https://eed3si9n.com/scruff-scala-code-formatter/ <p>I&rsquo;ve released <a href="https://github.com/eed3si9n/scruff">scruff</a>, a fast and normalizing Scala code formatter, written in Rust.</p> <h3 id="philosophy-normalize">philosophy: normalize</h3> <p>Inspired by Python code formatters <a href="https://pypi.org/project/black/">Black</a> and <a href="https://docs.astral.sh/ruff/formatter/">Ruff</a>, Scruff is a normalizing code formatter. This means that the <em>scruffed up</em> code looks the same regardless of how it started. Here&rsquo;s an example:</p> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-scala" data-lang="scala"><span style="display:flex;"><span><span style="color:#75715e">// original input </span></span></span><span style="display:flex;"><span><span style="color:#66d9ef">object</span> <span style="color:#a6e22e">A</span><span style="color:#66d9ef">:</span> </span></span><span style="display:flex;"><span> <span style="color:#66d9ef">val</span> <span style="color:#66d9ef">a</span> <span style="color:#f92672">=</span> <span style="color:#a6e22e">List</span><span style="color:#f92672">(</span><span style="color:#ae81ff">1</span><span style="color:#f92672">,</span> <span style="color:#ae81ff">2</span><span style="color:#f92672">)</span> </span></span><span style="display:flex;"><span> <span style="color:#66d9ef">val</span> b <span style="color:#66d9ef">=</span> <span style="color:#a6e22e">List</span><span style="color:#f92672">(</span> </span></span><span style="display:flex;"><span> <span style="color:#ae81ff">1</span><span style="color:#f92672">,</span> </span></span><span style="display:flex;"><span> <span style="color:#ae81ff">2</span> </span></span><span style="display:flex;"><span> <span style="color:#f92672">)</span> </span></span><span style="display:flex;"><span> <span style="color:#66d9ef">val</span> c <span style="color:#66d9ef">=</span> </span></span><span style="display:flex;"><span> <span style="color:#a6e22e">List</span><span style="color:#f92672">(</span><span style="color:#ae81ff">1</span><span style="color:#f92672">,</span> <span style="color:#ae81ff">2</span><span style="color:#f92672">)</span> </span></span></code></pre></div>