https://ashish1099.me/tags/filepath/ Recent content in Filepath on Ashish Jaiswal Hugo -- 0.147.0 en-us Mon, 16 Mar 2026 00:00:00 +0000 https://ashish1099.me/posts/go-filepath-glob-inotify-subdirectory-pitfalls/ Mon, 16 Mar 2026 00:00:00 +0000 https://ashish1099.me/posts/go-filepath-glob-inotify-subdirectory-pitfalls/ <p>Two bugs surfaced during a CEO-plan audit of the vuls-exporter codebase that are easy to introduce and silent enough to survive code review. Both involve standard-library primitives that look correct but fail quietly on Linux.</p> <h2 id="the-bugs-at-a-glance">The bugs at a glance</h2> <ol> <li><code>filepath.Glob(&quot;**/*.json&quot;)</code> does not recurse on Linux — it matches nothing in subdirectories and returns <code>nil, nil</code>.</li> <li>Raw <code>unix.InotifyAddWatch</code> does not automatically watch new subdirectories — any directory created after the watch is set up is silently ignored.</li> </ol> <h2 id="bug-1-filepathglob-does-not-support-">Bug 1: filepath.Glob does not support <code>**</code></h2> <p>The code looked like this:</p>