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  1. <?xml version="1.0" encoding="utf-8"?>
  2. <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Peterbe.com</title><link>http://www.peterbe.com/rss.xml</link><description>Stuff in Peter's head</description><atom:link href="http://www.peterbe.com/rss.xml" rel="self"/><language>en-us</language><lastBuildDate>Fri, 24 Oct 2025 01:23:26 +0000</lastBuildDate><item><title>Bun vs. Go for a basic web server benchmark</title><link>http://www.peterbe.com/plog/bun-go-basic-web-server-benchmark</link><description>&lt;p&gt;&lt;strong&gt;tl;dr; Bun is plenty fast to serve as a basic web server that does no I/O. It's even faster than Go using &lt;code&gt;fasthttp&lt;/code&gt;.&lt;/strong&gt;&lt;/p&gt;
  3. &lt;p&gt;Doing a "Hello World" benchmark comparison is rather contrived because it's so unrealistic. No server does no I/O. However, it's good to know that if you do need something as simple as this, and need raw performance, you don't need as statically compiled language like Go. Bun is fast enough.&lt;/p&gt;
  4. &lt;p&gt;Inspired by &lt;a href="https://medium.com/deno-the-complete-reference/bun-v-s-go-hello-world-performance-comparison-1f5418945112"&gt;this blog post&lt;/a&gt; from 2023, I wanted to retry it using Bun 1.3 that &lt;a href="https://bun.com/blog/bun-v1.3"&gt;came out the other day&lt;/a&gt;. Honestly, I was nerdily curious how it would fly on my M4 MacBook Pro.&lt;/p&gt;
  5. &lt;p&gt;Check out the code on: &lt;a href="https://github.com/peterbe/go-bun-compare"&gt;https://github.com/peterbe/go-bun-compare&lt;/a&gt;&lt;/p&gt;
  6. &lt;p&gt;The&lt;/p&gt;</description><pubDate>Fri, 24 Oct 2025 01:23:26 +0000</pubDate><guid>http://www.peterbe.com/plog/bun-go-basic-web-server-benchmark</guid></item><item><title>hylite as an executable</title><link>http://www.peterbe.com/plog/hylite-as-an-executable</link><description>github.com/peterbe/hylite is now available as downloadable single-file executables</description><pubDate>Wed, 15 Oct 2025 23:23:33 +0000</pubDate><guid>http://www.peterbe.com/plog/hylite-as-an-executable</guid></item><item><title>In Python, you have to specify the type and not rely on inference</title><link>http://www.peterbe.com/plog/in-python-you-have-to-specify-the-type-and-not-rely-on-inference</link><description>Unlike TypeScript, if you give a variable a default, which has a type, that variable is implied to always have the type of the default. That's not the case with mypy and ty.</description><pubDate>Fri, 10 Oct 2025 13:07:37 +0000</pubDate><guid>http://www.peterbe.com/plog/in-python-you-have-to-specify-the-type-and-not-rely-on-inference</guid></item><item><title>Find the source of an alias in bash</title><link>http://www.peterbe.com/plog/find-the-source-of-an-alias-in-bash</link><description>&lt;p&gt;This is borderline embarrassing but by blogging about it, at least there's hope that &lt;em&gt;I&lt;/em&gt; will not forget this.&lt;/p&gt;
  7. &lt;p&gt;If you have an executable, you can type &lt;code&gt;which&lt;/code&gt; to find out its full path. For example:&lt;/p&gt;
  8. &lt;pre&gt;&lt;code class="hljs"&gt;
  9. $ which fdfind
  10. /usr/bin/fdfind
  11. &lt;/code&gt;&lt;/pre&gt;
  12.  
  13. &lt;p&gt;then you can do something with that. But if the executable is an alias? E.g. I have set up &lt;code&gt;alias fd='fdfind'&lt;/code&gt; and suppose I don't remember that. I have this executable, &lt;code&gt;gbranch&lt;/code&gt;, but you can't use &lt;code&gt;which&lt;/code&gt; on it:&lt;/p&gt;
  14. &lt;pre&gt;&lt;code class="hljs"&gt;
  15. $ which fd
  16. &lt;/code&gt;&lt;/pre&gt;
  17.  
  18. &lt;p&gt;It outputs nothing and you get an exit code of 1.&lt;/p&gt;
  19. &lt;p&gt;Lo and behold, it's so basic, run the &lt;code&gt;alias&lt;/code&gt; command on it:&lt;/p&gt;
  20. &lt;pre&gt;&lt;code class="hljs"&gt;
  21. $ alias fd
  22. alias fd=&amp;#x27;fdfind&amp;#x27;
  23. &lt;/code&gt;&lt;/pre&gt;</description><pubDate>Mon, 29 Sep 2025 19:04:01 +0000</pubDate><guid>http://www.peterbe.com/plog/find-the-source-of-an-alias-in-bash</guid></item><item><title>From @monaco-editor/react to prism-react-editor</title><link>http://www.peterbe.com/plog/from-monaco-to-prism-react-editor</link><description>Switching from @monaco-editor/react to prism-react-editor means a less powerful in-browser editor but it's much lighter.</description><pubDate>Thu, 25 Sep 2025 21:18:29 +0000</pubDate><guid>http://www.peterbe.com/plog/from-monaco-to-prism-react-editor</guid></item><item><title>How I end-to-end test my Bun CLI app</title><link>http://www.peterbe.com/plog/how-i-end-to-end-test-my-bun-cli-app</link><description>Bun $ Shell makes it easy to write end-to-end tests that tests command line scripts.</description><pubDate>Thu, 18 Sep 2025 18:48:16 +0000</pubDate><guid>http://www.peterbe.com/plog/how-i-end-to-end-test-my-bun-cli-app</guid></item><item><title>How to count the number of non-blank lines with Bash</title><link>http://www.peterbe.com/plog/how-to-count-the-number-of-non-blank-lines-with-bash</link><description>You can use `awk 'NF &gt; 0'` to filter blank lines before piping to `wc` to filter out blank lines.</description><pubDate>Wed, 03 Sep 2025 15:08:07 +0000</pubDate><guid>http://www.peterbe.com/plog/how-to-count-the-number-of-non-blank-lines-with-bash</guid></item><item><title>gg commit with suggested --no-verify</title><link>http://www.peterbe.com/plog/gg-commit-with-suggested-no-verify</link><description>&lt;p&gt;In version &lt;a href="https://github.com/peterbe/gg2/releases/tag/v0.0.11"&gt;0.0.11&lt;/a&gt; of &lt;a href="https://github.com/peterbe/gg2"&gt;gg&lt;/a&gt; you can now type &lt;code&gt;gg commit Bla bla&lt;/code&gt; and it will try to commit but if that fails, it will ask you one more time, if you want to re-attempt to commit but with &lt;code&gt;--no-verify&lt;/code&gt;.&lt;/p&gt;
  24. &lt;p&gt;For example:&lt;/p&gt;
  25. &lt;pre&gt;&lt;code class="hljs"&gt;
  26. $ gg commit This is my commit message
  27. ❌ file has formatting problems
  28. Commit failed and you did not use --no-verify.
  29. ? Try again but with --no-verify? (y/N)
  30. &lt;/code&gt;&lt;/pre&gt;
  31.  
  32. &lt;p&gt;(&lt;em&gt;see screenshots below where color makes these things more intuitive&lt;/em&gt;)&lt;/p&gt;
  33. &lt;p&gt;This is handy when you know that the &lt;code&gt;.git/hooks/pre-commit&lt;/code&gt; might be failing for a reason that is actually not a problem &lt;em&gt;after&lt;/em&gt; you've committed.&lt;/p&gt;
  34. &lt;p&gt;In a sample repo I have:&lt;/p&gt;
  35. &lt;pre&gt;&lt;code class="hljs"&gt;
  36. $ &lt;span class="hljs-built_in"&gt;cat&lt;/span&gt; .git/hooks/pre-commit
  37. &lt;span class="hljs-comment"&gt;#!/bin/sh&lt;/span&gt;
  38.  
  39. &lt;span class="hljs-built_in"&gt;echo&lt;/span&gt; &lt;span class="hljs-string"&gt;&amp;quot;❌ Rejecting all commits like an angry troll&amp;quot;&lt;/span&gt;
  40. &lt;span class="hljs-built_in"&gt;exit&lt;/span&gt; 1
  41. &lt;/code&gt;&lt;/pre&gt;
  42.  
  43. &lt;p&gt;And when I use &lt;code&gt;gg commit ...&lt;/code&gt; this happens:&lt;/p&gt;
  44. &lt;p&gt;&lt;a href="/cache/5a/45/5a45eeb1b7d7baebdc9d07e6eb652fc8.png"&gt;&lt;img src="/cache/ff/ff/ffff529524b78fb3a84267679f8519ee.png" alt="Prompt"  width="370" height="90"&gt;&lt;/a&gt;&lt;/p&gt;
  45. &lt;p&gt;&lt;a href="/cache/67/10/671041199ffb99018237b945e483c761.png"&gt;&lt;img src="/cache/87/0e/870e49b633d6cddde804121623bd08e1.png" alt="Said y for Yes"  width="370" height="147"&gt;&lt;/a&gt;&lt;/p&gt;</description><pubDate>Fri, 29 Aug 2025 18:37:45 +0000</pubDate><guid>http://www.peterbe.com/plog/gg-commit-with-suggested-no-verify</guid></item><item><title>Faster way to sum an integer series in Python</title><link>http://www.peterbe.com/plog/faster-way-to-sum-an-integer-series-in-python</link><description>You can sum a simple series with `n(n+1)/2`</description><pubDate>Thu, 28 Aug 2025 12:11:22 +0000</pubDate><guid>http://www.peterbe.com/plog/faster-way-to-sum-an-integer-series-in-python</guid></item><item><title>Find GitHub Pull Request by commit SHA</title><link>http://www.peterbe.com/plog/find-github-pull-request-by-commit-sha</link><description>You can find the PR by searching for any of its SHA commits</description><pubDate>Thu, 21 Aug 2025 11:38:23 +0000</pubDate><guid>http://www.peterbe.com/plog/find-github-pull-request-by-commit-sha</guid></item></channel></rss>

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